获取精确到毫秒的时间 例如 2010-07-02 16:20:30.156

最新推荐文章于 2023-02-19 13:51:42 发布
最新推荐文章于 2023-02-19 13:51:42 发布
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分类专栏： VC C/C++ 文章标签： 2010
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/bagboy_taobao_com/article/details/5709580
本文介绍了一种使用 C 语言获取电脑当前精确时间的方法，包括毫秒级别的精度。通过调用 GetSystemTime 和 GetLocalTime 函数，可以分别获取 GMT 时间和本地时间。

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// 获取精确到毫秒的时间

GetSystemTime(&ti);   // GetSystemTime 是跟时区有关的, 获得的时间应该是GMT时间.

GetLocalTime(&ti);   // 这个才是真正的电脑当前时间, 例如现在是16:20, 在GetSystemTime中会变成8:20的

char chTemp[1024];

sprintf(chTemp, "%04d%02d%02d%02d%02d%02d%03d_%d",

 ti.wYear, ti.wMonth, ti.wDay, ti.wHour, ti.wMinute,

 ti.wSecond, ti.wMilliseconds, 2);

::MessageBoxA(m_hWnd, chTemp, 0, MB_OK);

 

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package com.tongchuang.realtime.mds; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import com.tongchuang.realtime.bean.ULEParamConfig; import com.tongchuang.realtime.util.KafkaUtils; import org.apache.flink.api.common.eventtime.WatermarkStrategy; import org.apache.flink.api.common.state.*; import org.apache.flink.api.common.time.Time; import org.apache.flink.api.common.typeinfo.BasicTypeInfo; import org.apache.flink.api.common.typeinfo.TypeHint; import org.apache.flink.api.common.typeinfo.TypeInformation; import org.apache.flink.configuration.Configuration; import org.apache.flink.connector.kafka.source.KafkaSource; import org.apache.flink.connector.kafka.source.enumerator.initializer.OffsetsInitializer; import org.apache.flink.streaming.api.datastream.*; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.api.functions.co.KeyedBroadcastProcessFunction; import org.apache.flink.streaming.api.functions.source.RichSourceFunction; import org.apache.flink.util.Collector; import org.apache.flink.util.OutputTag; import java.io.Serializable; import java.sql.*; import java.text.ParseException; import java.text.SimpleDateFormat; import java.time.Duration; import java.util.*; import java.util.Date; import java.util.concurrent.TimeUnit; public class ULEDataanomalyanalysis { public static void main(String[] args) throws Exception { final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); env.setParallelism(1); env.getConfig().setAutoWatermarkInterval(1000); // 设置水位线生成间隔 // 创建Kafka消费者 KafkaSource<String> kafkaConsumer = KafkaUtils.getKafkaConsumer( "realdata_minute", "minutedata_uledataanomalyanalysis", OffsetsInitializer.latest() ); // 修改Watermark策略为有界乱序 DataStreamSource<String> kafkaDS = env.fromSource( kafkaConsumer, WatermarkStrategy.<String>forBoundedOutOfOrderness(Duration.ofMinutes(1)) .withTimestampAssigner((event, timestamp) -> { try { JSONObject json = JSON.parseObject(event); return new SimpleDateFormat("yyyy-MM-dd HH:mm").parse(json.getString("times")).getTime(); } catch (ParseException e) { return System.currentTimeMillis(); // 使用当前时间作为回退 } }), "realdata_uledataanomalyanalysis" ); kafkaDS.print("分钟数据流"); // 解析JSON并拆分每个tag的数据 SingleOutputStreamOperator<JSONObject> splitStream = kafkaDS .map(JSON::parseObject) .returns(TypeInformation.of(JSONObject.class)) // 显式指定返回类型 .flatMap((JSONObject value, Collector<JSONObject> out) -> { JSONObject data = value.getJSONObject("datas"); String time = value.getString("times"); for (String tag : data.keySet()) { JSONObject tagData = data.getJSONObject(tag); JSONObject newObj = new JSONObject(); newObj.put("time", time); newObj.put("tag", tag); newObj.put("ontime", tagData.getDouble("ontime")); newObj.put("avg", tagData.getDouble("avg")); out.collect(newObj); } }) .returns(TypeInformation.of(JSONObject.class)) // 显式指定返回类型 .name("Split-By-Tag"); // 每5分钟加载参数配置 DataStream<ConfigCollection> configDataStream = env .addSource(new MysqlConfigSource()) .setParallelism(1) .filter(Objects::nonNull) .name("Config-Source"); // 创建标签值数据流（修复类型擦除问题） DataStream<Map<String, Object>> tagValueStream = splitStream .map(json -> { Map<String, Object> valueMap = new HashMap<>(); valueMap.put("tag", json.getString("tag")); // 根据数据类型选择合适的值 valueMap.put("value", "436887485805570949".equals(json.getString("datatype")) ? json.getDouble("ontime") : json.getDouble("avg")); return valueMap; }) .returns(new TypeHint<Map<String, Object>>() {}) // 显式指定返回类型 .name("Tag-Value-Stream"); // 合并配置流和标签值流（修复类型擦除问题） DataStream<Object> broadcastStream = configDataStream .map(config -> (Object) config) .returns(TypeInformation.of(Object.class)) // 显式指定返回类型 .union( tagValueStream.map(tagValue -> (Object) tagValue) .returns(TypeInformation.of(Object.class)) // 显式指定返回类型 ); // 广播合并流（使用两个状态描述符） BroadcastStream<Object> finalBroadcastStream = broadcastStream .broadcast(Descriptors.configStateDescriptor, Descriptors.tagValuesDescriptor); // 按tag分组并连接广播流 KeyedStream<JSONObject, String> keyedStream = splitStream .keyBy(json -> json.getString("tag")); BroadcastConnectedStream<JSONObject, Object> connectedStream = keyedStream.connect(finalBroadcastStream); // 异常检测处理 SingleOutputStreamOperator<JSONObject> anomalyStream = connectedStream .process(new OptimizedAnomalyDetectionFunction()) .name("Anomaly-Detection"); anomalyStream.print("异常检测结果"); // 获取侧输出流（离线检测结果）并打印 DataStream<String> offlineCheckStream = anomalyStream.getSideOutput(OptimizedAnomalyDetectionFunction.OFFLINE_CHECK_TAG); offlineCheckStream.print("离线检测结果"); env.execute("uledataanomalyanalysis"); } // 配置集合类 public static class ConfigCollection implements Serializable { private static final long serialVersionUID = 1L; public final Map<String, List<ULEParamConfig>> tagToConfigs; public final Map<String, ULEParamConfig> encodeToConfig; public final Set<String> allTags; public final long checkpointTime; // 配置加载的时间戳 public ConfigCollection(Map<String, List<ULEParamConfig>> tagToConfigs, Map<String, ULEParamConfig> encodeToConfig) { this.tagToConfigs = new HashMap<>(tagToConfigs); this.encodeToConfig = new HashMap<>(encodeToConfig); this.allTags = new HashSet<>(tagToConfigs.keySet()); this.checkpointTime = System.currentTimeMillis(); // 记录配置加载时间 } } // MySQL配置源 public static class MysqlConfigSource extends RichSourceFunction<ConfigCollection> { private volatile boolean isRunning = true; private final long interval = TimeUnit.MINUTES.toMillis(5); @Override public void run(SourceContext<ConfigCollection> ctx) throws Exception { while (isRunning) { ConfigCollection newConfig = loadParams(); if (newConfig != null) { ctx.collect(newConfig); System.out.println("配置加载完成，检查点时间: " + new Date(newConfig.checkpointTime)); } else { System.out.println("配置加载失败"); } Thread.sleep(interval); } } private ConfigCollection loadParams() { Map<String, List<ULEParamConfig>> tagToConfigs = new HashMap<>(5000); Map<String, ULEParamConfig> encodeToConfig = new HashMap<>(5000); String url = "jdbc:mysql://10.51.37.73:3306/eps?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8"; String user = "root"; String password = "6CKIm5jDVsLrahSw"; String query = "SELECT F_tag AS tag, F_enCode AS encode, F_dataTypes AS datatype, " + "F_isConstantValue AS constantvalue, F_isOnline AS isonline, " + "F_isSync AS issync, F_syncParaEnCode AS syncparaencode, " + "F_isZero AS iszero, F_isHigh AS ishigh, F_highThreshold AS highthreshold, " + "F_isLow AS islow, F_lowThreshold AS lowthreshold, F_duration AS duration " + "FROM t_equipmentparameter " + "WHERE F_enabledmark = '1' AND (F_isConstantValue ='1' OR F_isZero= '1' " + "OR F_isHigh = '1' OR F_isLow = '1' OR F_isOnline = '1' OR F_isSync = '1')"; try (Connection conn = DriverManager.getConnection(url, user, password); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery(query)) { while (rs.next()) { ULEParamConfig config = new ULEParamConfig(); config.tag = rs.getString("tag"); config.encode = rs.getString("encode"); config.datatype = rs.getString("datatype"); config.constantvalue = rs.getInt("constantvalue"); config.iszero = rs.getInt("iszero"); config.ishigh = rs.getInt("ishigh"); config.highthreshold = rs.getDouble("highthreshold"); config.islow = rs.getInt("islow"); config.lowthreshold = rs.getDouble("lowthreshold"); config.duration = rs.getLong("duration"); config.isonline = rs.getInt("isonline"); config.issync = rs.getInt("issync"); config.syncparaencode = rs.getString("syncparaencode"); // 跳过无效配置 if (config.encode == null || config.encode.isEmpty()) { System.err.println("忽略无效配置: 空encode"); continue; } String tag = config.tag; tagToConfigs.computeIfAbsent(tag, k -> new ArrayList<>(10)).add(config); encodeToConfig.put(config.encode, config); } System.out.println("加载配置: " + encodeToConfig.size() + " 个参数"); return new ConfigCollection(tagToConfigs, encodeToConfig); } catch (SQLException e) { System.err.println("加载参数配置错误:"); e.printStackTrace(); return null; } } @Override public void cancel() { isRunning = false; } } // 状态描述符 public static class Descriptors { // 配置状态描述符 public static final MapStateDescriptor<Void, ConfigCollection> configStateDescriptor = new MapStateDescriptor<>( "configState", TypeInformation.of(Void.class), TypeInformation.of(ConfigCollection.class) ); // 标签值广播状态描述符 public static final MapStateDescriptor<String, Double> tagValuesDescriptor = new MapStateDescriptor<>( "tagValuesBroadcastState", BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.DOUBLE_TYPE_INFO); } // 优化后的异常检测函数 public static class OptimizedAnomalyDetectionFunction extends KeyedBroadcastProcessFunction<String, JSONObject, Object, JSONObject> { // 状态管理 private transient MapState<String, AnomalyState> stateMap; // key=encode private transient MapState<String, Double> lastValuesMap; // key=tag private transient MapState<String, Long> lastDataTimeMap; // key=tag private transient ValueState<Long> lastCheckpointState; // 记录该tag上次处理的检查点时间 private transient MapState<String, Long> offlineTimerState; // 离线检测定时器状态 (修复点1) private transient SimpleDateFormat timeFormat; // 日志频率控制 private transient long lastSyncLogTime = 0; // 侧输出标签用于离线检测 public static final OutputTag<String> OFFLINE_CHECK_TAG = new OutputTag<String>("offline-check"){}; @Override public void open(Configuration parameters) { // 状态TTL配置（30天自动清理） StateTtlConfig ttlConfig = StateTtlConfig.newBuilder(Time.days(30)) .setUpdateType(StateTtlConfig.UpdateType.OnCreateAndWrite) .setStateVisibility(StateTtlConfig.StateVisibility.NeverReturnExpired) .cleanupFullSnapshot() .build(); // 初始化异常状态存储（启用TTL） MapStateDescriptor<String, AnomalyState> stateDesc = new MapStateDescriptor<>( "anomalyState", BasicTypeInfo.STRING_TYPE_INFO, TypeInformation.of(AnomalyState.class) ); stateDesc.enableTimeToLive(ttlConfig); stateMap = getRuntimeContext().getMapState(stateDesc); // 初始化最新值存储（启用TTL） MapStateDescriptor<String, Double> valuesDesc = new MapStateDescriptor<>( "lastValuesState", BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.DOUBLE_TYPE_INFO ); valuesDesc.enableTimeToLive(ttlConfig); lastValuesMap = getRuntimeContext().getMapState(valuesDesc); // 初始化最后数据时间存储（启用TTL） MapStateDescriptor<String, Long> timeDesc = new MapStateDescriptor<>( "lastDataTimeState", BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.LONG_TYPE_INFO ); timeDesc.enableTimeToLive(ttlConfig); lastDataTimeMap = getRuntimeContext().getMapState(timeDesc); // 初始化检查点状态（记录上次处理的配置时间） ValueStateDescriptor<Long> checkpointDesc = new ValueStateDescriptor<>( "lastCheckpointState", BasicTypeInfo.LONG_TYPE_INFO ); checkpointDesc.enableTimeToLive(ttlConfig); lastCheckpointState = getRuntimeContext().getState(checkpointDesc); // 初始化离线检测定时器状态 (修复点1) MapStateDescriptor<String, Long> timerDesc = new MapStateDescriptor<>( "offlineTimerState", BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.LONG_TYPE_INFO ); timerDesc.enableTimeToLive(ttlConfig); offlineTimerState = getRuntimeContext().getMapState(timerDesc); timeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm"); } @Override public void processElement(JSONObject data, ReadOnlyContext ctx, Collector<JSONObject> out) throws Exception { String tag = ctx.getCurrentKey(); String timeStr = data.getString("time"); long eventTime = timeFormat.parse(timeStr).getTime(); // 更新最后数据时间 lastDataTimeMap.put(tag, eventTime); // 获取广播配置 ConfigCollection configCollection = getBroadcastConfig(ctx); if (configCollection == null) { return; } List<ULEParamConfig> configs = configCollection.tagToConfigs.get(tag); if (configs == null || configs.isEmpty()) { return; } // 清理无效状态 List<String> keysToRemove = new ArrayList<>(); for (String encode : stateMap.keys()) { boolean found = false; for (ULEParamConfig cfg : configs) { if (cfg.encode.equals(encode)) { found = true; break; } } if (!found) { System.out.println("清理过期状态: " + encode); keysToRemove.add(encode); } } for (String encode : keysToRemove) { stateMap.remove(encode); } double value = 0; boolean valueSet = false; // 检查该tag是否需要离线检测 (修复点2) boolean hasOnlineConfig = false; long minDuration = Long.MAX_VALUE; for (ULEParamConfig config : configs) { if (config.isonline == 1) { hasOnlineConfig = true; minDuration = Math.min(minDuration, config.duration); } } // 管理离线检测定时器 (修复点3) if (hasOnlineConfig) { // 删除现有定时器 Long currentTimer = offlineTimerState.get(tag); if (currentTimer != null) { ctx.timerService().deleteEventTimeTimer(currentTimer); } // 注册新定时器（使用最小duration） long offlineTimeout = eventTime + minDuration * 60 * 1000; ctx.timerService().registerEventTimeTimer(offlineTimeout); offlineTimerState.put(tag, offlineTimeout); // 重置离线状态（数据到达表示恢复） for (ULEParamConfig config : configs) { if (config.isonline == 1) { AnomalyState state = getOrCreateState(config.encode); AnomalyStatus status = state.getStatus(6); if (status.reported) { // 数据恢复，发送恢复事件 reportAnomaly(6, 0, 0.0, timeStr, config, out); status.reset(); stateMap.put(config.encode, state); } } } } // 遍历配置项进行异常检测 for (ULEParamConfig config : configs) { if (!valueSet) { value = "436887485805570949".equals(config.datatype) ? data.getDouble("ontime") : data.getDouble("avg"); lastValuesMap.put(tag, value); valueSet = true; } // 获取或初始化状态 AnomalyState state = getOrCreateState(config.encode); // 处理异常类型 checkConstantValueAnomaly(config, value, timeStr, state, out); // 1. 恒值检测 checkZeroValueAnomaly(config, value, timeStr, state, out); // 2. 零值检测 checkThresholdAnomaly(config, value, timeStr, state, out); // 3. 上阈值, 4. 下阈值 checkSyncAnomaly(config, value, timeStr, state, configCollection, ctx, out); // 5. 同步检测 // 保存状态 stateMap.put(config.encode, state); } } @Override public void onTimer(long timestamp, OnTimerContext ctx, Collector<JSONObject> out) throws Exception { String tag = ctx.getCurrentKey(); Long lastEventTime = lastDataTimeMap.get(tag); // 获取配置 ConfigCollection configCollection = getBroadcastConfig(ctx); if (configCollection == null) return; List<ULEParamConfig> configs = configCollection.tagToConfigs.get(tag); if (configs == null) return; // 检查所有需要离线检测的配置项 (修复点4) boolean hasOnlineConfig = false; for (ULEParamConfig config : configs) { if (config.isonline == 1) { hasOnlineConfig = true; AnomalyState state = getOrCreateState(config.encode); AnomalyStatus status = state.getStatus(6); // 6表示离线异常 // 检查是否超时 if (lastEventTime != null && (timestamp - lastEventTime) >= config.duration * 60 * 1000) { if (!status.reported) { String triggerTime = timeFormat.format(new Date(timestamp)); reportAnomaly(6, 1, 0.0, triggerTime, config, out); status.reported = true; // 输出到侧输出流 ctx.output(OFFLINE_CHECK_TAG, String.format("离线异常: tag=%s, encode=%s, 最后数据时间=%s, 超时时间=%s", config.tag, config.encode, lastEventTime != null ? timeFormat.format(new Date(lastEventTime)) : "N/A", triggerTime)); } } else { // 数据已恢复，重置状态 if (status.reported) { reportAnomaly(6, 0, 0.0, timeFormat.format(new Date()), config, out); status.reset(); } } stateMap.put(config.encode, state); } } // 重新注册定时器（如果tag仍然存在）(修复点5) if (hasOnlineConfig) { long newTimeout = timestamp + TimeUnit.MINUTES.toMillis(1); // 每分钟检查一次 ctx.timerService().registerEventTimeTimer(newTimeout); offlineTimerState.put(tag, newTimeout); } else { offlineTimerState.remove(tag); } } // 恒值检测 - 异常类型1 private void checkConstantValueAnomaly(ULEParamConfig config, double currentValue, String timeStr, AnomalyState state, Collector<JSONObject> out) { if (config.constantvalue != 1) return; try { AnomalyStatus status = state.getStatus(1); long durationThreshold = config.duration * 60 * 1000; Date timestamp = timeFormat.parse(timeStr); if (status.lastValue == null) { status.lastValue = currentValue; status.lastChangeTime = timestamp; return; } if (Math.abs(currentValue - status.lastValue) > 0.001) { status.lastValue = currentValue; status.lastChangeTime = timestamp; if (status.reported) { reportAnomaly(1, 0, currentValue, timeStr, config, out); } status.reset(); return; } long elapsed = timestamp.getTime() - status.lastChangeTime.getTime(); if (elapsed > durationThreshold) { if (!status.reported) { reportAnomaly(1, 1, currentValue, timeStr, config, out); status.reported = true; } } } catch (Exception e) { System.err.println("恒值检测错误: " + config.encode + " - " + e.getMessage()); } } // 零值检测 - 异常类型2 private void checkZeroValueAnomaly(ULEParamConfig config, double currentValue, String timeStr, AnomalyState state, Collector<JSONObject> out) { if (config.iszero != 1) return; try { AnomalyStatus status = state.getStatus(2); Date timestamp = timeFormat.parse(timeStr); boolean isZero = Math.abs(currentValue) < 0.001; if (isZero) { if (status.startTime == null) { status.startTime = timestamp; } else if (!status.reported) { long elapsed = timestamp.getTime() - status.startTime.getTime(); if (elapsed >= config.duration * 60 * 1000) { reportAnomaly(2, 1, currentValue, timeStr, config, out); status.reported = true; } } } else { if (status.reported) { reportAnomaly(2, 0, currentValue, timeStr, config, out); status.reset(); } else if (status.startTime != null) { status.startTime = null; } } } catch (Exception e) { System.err.println("零值检测错误:极速版 " + config.encode + " - " + e.getMessage()); } } // 阈值检测 - 异常类型3(上阈值)和4(下阈值) private void checkThresholdAnomaly(ULEParamConfig config, double currentValue, String timeStr, AnomalyState state, Collector<JSONObject> out) { try { if (config.ishigh == 1) { AnomalyStatus highStatus = state.getStatus(3); processThresholdAnomaly(highStatus, currentValue, timeStr, currentValue > config.highthreshold, config, 3, out); } if (config.islow == 1) { AnomalyStatus lowStatus = state.getStatus(4); processThresholdAnomaly(lowStatus, currentValue, timeStr, currentValue < config.lowthreshold, config, 4, out); } } catch (Exception e) { System.err.println("阈值检测错误: " + config.encode + " - " + e.getMessage()); } } private void processThresholdAnomaly(AnomalyStatus status, double currentValue, String timeStr, boolean isAnomaly, ULEParamConfig config, int anomalyType, Collector<JSONObject> out) { try { Date timestamp = timeFormat.parse(timeStr); if (isAnomaly) { if (status.startTime == null) { status.startTime = timestamp; } else if (!status.reported) { long elapsed = timestamp.getTime() - status.startTime.getTime(); if (elapsed >= config.duration * 60 * 1000) { reportAnomaly(anomalyType, 1, currentValue, timeStr, config, out); status.reported = true; } } } else { if (status.reported) { reportAnomaly(anomalyType, 0, currentValue, timeStr, config, out); status.reset(); } else if (status.startTime != null) { status.startTime = null; } } } catch (Exception e) { System.err.println("阈值处理错误: " + config.encode + " - " + e.getMessage()); } } // 同步检测 - 异常类型5 private void checkSyncAnomaly(ULEParamConfig config, double currentValue, String timeStr, AnomalyState state, ConfigCollection configCollection, ReadOnlyContext ctx, Collector<JSONObject> out) { if (config.issync != 1 || config.syncparaencode == null || config.syncparaencode.isEmpty()) { return; } try { // 1. 通过encode获取关联配置 ULEParamConfig relatedConfig = configCollection.encodeToConfig.get(config.syncparaencode); if (relatedConfig == null) { if (System.currentTimeMillis() - lastSyncLogTime > 60000) { System.out.println("同步检测: 未找到关联配置, encode=" + config.syncparaencode); lastSyncLogTime = System.currentTimeMillis(); } return; } // 2. 获取关联配置的tag String relatedTag = relatedConfig.tag; if (relatedTag == null || relatedTag.isEmpty()) { if (System.currentTimeMillis() - lastSyncLogTime > 60000) { System.out.println("同步检测: 关联配置没有tag, encode=" + config.syncparaencode); lastSyncLogTime = System.currentTimeMillis(); } return; } // 3. 从广播状态获取关联值 ReadOnlyBroadcastState<String, Double> tagValuesState = ctx.getBroadcastState(Descriptors.tagValuesDescriptor); Double relatedValue = tagValuesState.get(relatedTag); if (relatedValue == null) { if (System.currentTimeMillis() - lastSyncLogTime > 60000) { System.out.println("同步检测: 关联值未初始化, tag=" + relatedTag); lastSyncLogTime = System.currentTimeMillis(); } return; } // 4. 同步检测逻辑 AnomalyStatus status = state.getStatus(5); Date timestamp = timeFormat.parse(timeStr); // 根据业务需求调整同步异常判断逻辑 boolean isAnomaly = (currentValue >= 0.99) && (Math.abs(relatedValue) < 0.01); // 记录调试信息 if (System.currentTimeMillis() - lastSyncLogTime > 60000) { System.out.printf("同步检测: %s (%.4f) vs %s (%.4f) -> %b%n", config.tag, currentValue, relatedTag, relatedValue, isAnomaly); lastSyncLogTime = System.currentTimeMillis(); } // 5. 处理异常状态 if (isAnomaly) { if (status.startTime == null) { status.startTime = timestamp; } else if (!status.reported) { long elapsed = timestamp.getTime() - status.startTime.getTime(); if (elapsed >= config.duration * 60 * 1000) { reportAnomaly(5, 1, currentValue, timeStr, config, out); status.reported = true; } } } else { if (status.reported) { reportAnomaly(5, 0, currentValue, timeStr, config, out); status.reset(); } else if (status.startTime != null) { status.startTime = null; } } } catch (ParseException e) { System.err.println("同步检测时间解析错误: " + config.encode + " - " + e.getMessage()); } catch (Exception e) { System.err.println("同步检测错误: " + config.encode + " - " + e.getMessage()); } } // 报告异常 private void reportAnomaly(int anomalyType, int statusFlag, double value, String time, ULEParamConfig config, Collector<JSONObject> out) { JSONObject event = new JSONObject(); event.put("tag", config.tag); event.put("paracode", config.encode); event.put("abnormaltype", anomalyType); event.put("statusflag", statusFlag); event.put("datavalue", value); event.put("triggertime", time); out.collect(event); } @Override public void processBroadcastElement(Object broadcastElement, Context ctx, Collector<JSONObject> out) throws Exception { // 处理配置更新 if (broadcastElement instanceof ConfigCollection) { ConfigCollection newConfig = (ConfigCollection) broadcastElement; BroadcastState<Void, ConfigCollection> configState = ctx.getBroadcastState(Descriptors.configStateDescriptor); // 获取旧配置 ConfigCollection oldConfig = configState.get(null); // 处理配置变更：清理不再启用的报警 if (oldConfig != null) { for (Map.Entry<String, ULEParamConfig> entry : oldConfig.encodeToConfig.entrySet()) { String encode = entry.getKey(); ULEParamConfig oldCfg = entry.getValue(); // 检查配置是否被删除或禁用 ULEParamConfig newCfg = newConfig.encodeToConfig.get(encode); if (newCfg == null || !isAlarmEnabled(newCfg, oldCfg)) { // 发送恢复事件 sendRecoveryEvents(encode, oldCfg, ctx, out); } } } // 更新广播状态 configState.put(null, newConfig); System.out.println("广播配置更新完成, 配置项: " + newConfig.encodeToConfig.size()); } // 处理标签值更新 else if (broadcastElement instanceof Map) { @SuppressWarnings("unchecked") Map<String, Object> tagValue = (Map<String, Object>) broadcastElement; String tag = (String) tagValue.get("tag"); Double value = (Double) tagValue.get("value"); if (tag != null && value != null) { BroadcastState<String, Double> tagValuesState = ctx.getBroadcastState(Descriptors.tagValuesDescriptor); tagValuesState.put(tag, value); // System.out.println("更新标签值: " + tag + " = " + value); } } } // 检查报警是否启用 private boolean isAlarmEnabled(ULEParamConfig newCfg, ULEParamConfig oldCfg) { // 检查所有报警类型是否被禁用 return (oldCfg.constantvalue == 1 && newCfg.constantvalue == 1) || (oldCfg.iszero == 1 && newCfg.iszero == 1) || (oldCfg.ishigh == 1 && newCfg.ishigh == 1) || (oldCfg.islow == 1 && newCfg.islow == 1) || (oldCfg.isonline == 1 && newCfg.isonline == 1) || (oldCfg.issync == 1 && newCfg.issync == 1); } // 发送恢复事件 private void sendRecoveryEvents(String encode, ULEParamConfig config, Context ctx, Collector<JSONObject> out) { try { AnomalyState state = stateMap.get(encode); if (state == null) return; // 遍历所有可能的报警类型 for (int type = 1; type <= 6; type++) { // 包括1-6所有异常类型 AnomalyStatus status = state.getStatus(type); if (status.reported) { JSONObject recoveryEvent = new JSONObject(); recoveryEvent.put("tag", config.tag); recoveryEvent.put("paracode", config.encode); recoveryEvent.put("abnormaltype", type); recoveryEvent.put("statusflag", 0); // 恢复事件 recoveryEvent.put("datavalue", 0.0); recoveryEvent.put("triggertime", timeFormat.format(new Date())); out.collect(recoveryEvent); status.reset(); } } // 更新状态 stateMap.put(encode, state); } catch (Exception e) { System.err.println("发送恢复事件失败: " + e.getMessage()); } } // 辅助方法 private ConfigCollection getBroadcastConfig(ReadOnlyContext ctx) throws Exception { return ctx.getBroadcastState(Descriptors.configStateDescriptor).get(null); } private AnomalyState getOrCreateState(String encode) throws Exception { AnomalyState state = stateMap.get(encode); if (state == null) { state = new AnomalyState(); } return state; } } // 异常状态类 public static class AnomalyState implements Serializable { private static final long serialVersionUID = 1L; private final Map<Integer, AnomalyStatus> statusMap = new HashMap<>(); public AnomalyStatus getStatus(int type) { return statusMap.computeIfAbsent(type, k -> new AnomalyStatus()); } } // 异常状态详情 public static class AnomalyStatus implements Serializable { private static final long serialVersionUID = 1L; public Date startTime; // 异常开始时间 public Double lastValue; // 用于恒值检测 public Date lastChangeTime; // 值最后变化时间 public boolean reported; // 是否已报告 public void reset() { startTime = null; lastValue = null; lastChangeTime = null; reported = false; } } } 运行的日志为："C:\Program Files (x86)\Java\jdk1.8.0_102\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:7630,suspend=y,server=n -javaagent:C:\Users\Administrator\AppData\Local\JetBrains\IntelliJIdea2021.2\captureAgent\debugger-agent.jar -Dfile.encoding=UTF-8 -classpath C:\Users\Administrator\AppData\Local\Temp\classpath1753622630.jar com.tongchuang.realtime.mds.ULEDataanomalyanalysis 已连接到目标 VM, 地址: ''127.0.0.1:7630'，传输: '套接字'' SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/F:/flink/flinkmaven/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.10.0/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/F:/flink/flinkmaven/repository/org/slf4j/slf4j-log4j12/1.7.25/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory] 加载配置: 30 个参数 配置加载完成，检查点时间: Mon Aug 04 16:21:14 CST 2025 广播配置更新完成, 配置项: 30 分钟数据流> {"times":"2025-08-04 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同步检测: DA-DB195-RH-B-0201 (1.0000) vs DA-NY-LG1ZL-2-001 (0.0000) -> true 分钟数据流> {"times":"2025-08-04 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异常检测结果> {"abnormaltype":2,"paracode":"EP000022","datavalue":0.0,"tag":"DA-NY-LG1ZL-2-001","triggertime":"2025-08-04 16:22","statusflag":1} 异常检测结果> {"abnormaltype":4,"paracode":"EP000022","datavalue":0.0,"tag":"DA-NY-LG1ZL-2-001","triggertime":"2025-08-04 16:22","statusflag":1} 异常检测结果> {"abnormaltype":4,"paracode":"EP000001","datavalue":1.0,"tag":"DA-DB195-RH-B-0201","triggertime":"2025-08-04 16:22","statusflag":1} 异常检测结果> {"abnormaltype":5,"paracode":"EP000001","datavalue":1.0,"tag":"DA-DB195-RH-B-0201","triggertime":"2025-08-04 16:22","statusflag":1} 分钟数据流> {"times":"2025-08-04 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异常检测结果> {"abnormaltype":1,"paracode":"EP000022","datavalue":0.0,"tag":"DA-NY-LG1ZL-2-001","triggertime":"2025-08-04 16:23","statusflag":1} 异常检测结果> {"abnormaltype":1,"paracode":"EP000001","datavalue":1.0,"tag":"DA-DB195-RH-B-0201","triggertime":"2025-08-04 16:23","statusflag":1} 同步检测: DA-DB195-RH-B-0201 (1.0000) vs DA-NY-LG1ZL-2-001 (0.0000) -> true 分钟数据流> {"times":"2025-08-04 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分钟数据流> {"times":"2025-08-04 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同步检测: DA-DB195-RH-B-0201 (1.0000) vs DA-NY-LG1ZL-2-001 (0.0000) -> true 加载配置: 30 个参数 配置加载完成，检查点时间: Mon Aug 04 16:26:15 CST 2025 广播配置更新完成, 配置项: 30 分钟数据流> {"times":"2025-08-04 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同步检测: DA-DB195-RH-B-0201 (1.0000) vs DA-NY-LG1ZL-2-001 (0.0000) -> true 分钟数据流> {"times":"2025-08-04 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同步检测: DA-DB195-RH-B-0201 (1.0000) vs DA-NY-LG1ZL-2-001 (0.0000) -> true 离线监测未实现，请分析原因，并生成完整修复后代码。
最新发布
08-05
因此，我们需要水位线推进到16:30，这需要其他tag的数据的事件时间至少达到16:31（这样水位线就是16:31-1min=16:30）。 所以，定时器会在水位线达到16:30时触发，这要求有事件时间>=16:31的数据到来。 因此，...
import binascii import serial import time import struct import queue import threading from datetime import datetime CanOBDItemList = [] CanPGNItemList = [[0,0,0,0]] filteredCanOBDItemList = [] Frame_start = b'\xFF' Frame_end = b'\x55' Frame_data_style_len = 6 Frame_Data_Len = 0 frame_buffer = bytearray() class CanInfShow_Item: def __int__(self,CanID,CanFramType,Len,CanDataInf): self.SystemCycle = datetime.strftime("%Y-%m-%d %H:%M:%S.%f")[:-3], self.CanID = CanID, self.CanFrame = CanFramType, self.CanDataLen = Len, self.CanData = CanDataInf class CanPGNShow_Item: def __int__(self, PGNID, CanID, CanData, Signal): self.PGNID = PGNID, self.CanID = CanID, self.CanData = CanData, self.Signal = Signal class SerialPort: def __init__(self, port, baudrate): # 初始化串口参数 self.port = port self.baudrate = baudrate self.ser = serial.Serial( port=self.port, baudrate=self.baudrate, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE ) # 等待串口连接稳定 self.last_data_time = time.time() # 新增：最后接收数据的时间戳 self.cycle_dict = {} # 存储{帧ID: [上次时间戳, 当前周期]} self.last_frame_time = {} # 存储每个ID的最后出现时间 self.data_updated_ids = set() # 存储数据变化的CAN ID self.new_added_ids = set() # 存储新增的CAN ID self.last_data_dict = {} # 存储每个CAN ID的上一次数据 self.changed_bytes_dict = {} # 存储每个CAN ID的变化字节索引 self.last_pgn_data_dict = {} # 存储每个PGN ID的上一次数据 self.changed_pgn_bytes_dict = {} # 存储每个PGN ID的变化字节索引 self.state = 0 self.current_frame = bytearray() self.expected_length = 0 self.raw_data_queue = queue.Queue(maxsize=10000) self.data_lock = threading.Lock() self.worker_threads = [] self.allowed_pgn_ids = {0xFEF1, 0xF004, 0xFEC1, 0xFEE5, 0xFEEE, 0xFE56, 0xFEF2, 0xF005} self.filter_cycles = [] # 添加这一行用于存储过滤周期 self.count=0 time.sleep(0.2) if not self.ser.isOpen(): print("串口打开失败！") def close(self): # 关闭串口连接 if self.ser.isOpen(): self.ser.close() def send(self, data): # 发送数据 if self.ser.isOpen(): try: self.ser.write(data.encode('utf-8')) except serial.SerialException as e: print(f"发送数据失败: {e}") # def recv(self): # # 接收数据 # if self.ser.isOpen(): # data = self.ser.read(self.ser.inWaiting()) # if data: # 有数据时更新时间戳 # self.last_data_time = time.time() # return data def recv(self, chunk_size=1024): if self.ser.isOpen(): # 每次最多读取1024字节 data = self.ser.read(min(self.ser.inWaiting(), chunk_size)) if data: self.last_data_time = time.time() return data return None def __del__(self): self.close() def SerialIsOpen(self): if self.ser.isOpen(): return 1 else: return 0 def start_reading(self): self.recv_thread = threading.Thread(target=self._recv_worker, daemon=True) self.parse_thread = threading.Thread(target=self._parse_worker, daemon=True) self.recv_thread.start() self.parse_thread.start() self.worker_threads = [self.recv_thread, self.parse_thread] def _recv_worker(self): while self.ser.isOpen(): data = self.recv(chunk_size=4096) # 每次最多读4KB if data: self.raw_data_queue.put(data) # else: # time.sleep(0.001) def _parse_worker(self): while True: try: data = self.raw_data_queue.get(timeout=0.1) for byte in data: self.process_byte(byte) except queue.Empty: continue def process_byte(self, byte): """ 使用状态机逐字节解析帧结构。 """ if self.state == 0: # 等待帧头 FF if byte == 0xFF: self.current_frame.append(byte) self.state = 1 else: # 如果不是帧头，忽略该字节 pass elif self.state == 1: # 等待帧头 55 if byte == 0x55: self.current_frame.append(byte) self.state = 2 else: # 如果第二字节不是55，重置 self.reset_state() elif self.state == 2: # 接收总长度低位 (第2字节) self.current_frame.append(byte) self.state = 3 elif self.state == 3: # 接收总长度高位 (第3字节) self.current_frame.append(byte) # 计算总长度（从第2字节开始） length_high = self.current_frame[2] length_low = byte self.expected_length = (length_high << 8) | length_low self.state = 4 elif self.state == 4: # 接收类型字段 (第4字节) self.current_frame.append(byte) self.state = 5 elif self.state == 5: # 接收保留字段 (第5字节) self.current_frame.append(byte) self.state = 6 elif self.state == 6: # 接收 CAN 通道类型 (第6字节) self.current_frame.append(byte) self.state = 7 elif self.state == 7: # 接收 CAN 报文个数 N (第7字节) self.current_frame.append(byte) self.num_messages = byte self.state = 8 self.messages_received = 0 elif self.state == 8: #接收can报文 self.current_frame.append(byte) self.messages_received += 1 if self.messages_received == self.num_messages * 12: self.state = 9 elif self.state == 9: # 接收校验位 self.current_frame.append(byte) if self.verify_checksum(): self.Frame_analoy_process(bytes(self.current_frame)) else: print("校验失败，丢弃当前帧") self.reset_state() def verify_checksum(self): """ 验证校验和：从第2字节到倒数第二个字节之和 & 0xFF """ data_to_check = self.current_frame[2:-1] # 从第2字节到最后一个校验位之前 checksum = sum(data_to_check) & 0xFF return checksum == self.current_frame[-1] def reset_state(self): """ 重置状态机 """ self.state = 0 self.current_frame = bytearray() self.expected_length = 0 self.messages_received = 0 def set_filter_cycles(self, cycles): self.filter_cycles = cycles.copy() if cycles else [] #报文解析 def Frame_analoy_process(self, Framedata): # 检查帧类型 (0x0C 0x98) if len(Framedata) < 8 or Framedata[4] != 0x0C or Framedata[5] != 0x98: return try: FrameNum = int(Framedata[7]) except IndexError: return # 检查是否有足够数据 if len(Framedata) < 12 * FrameNum + 8: return current_time = time.time() # 获取当前精确时间戳 for index in range(0,FrameNum): # 时间戳 Cantime = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")[:-3] try: id_bytes = [ Framedata[12 * index + 11], # LSB Framedata[12 * index + 10], Framedata[12 * index + 9], Framedata[12 * index + 8] # MSB ] except IndexError: continue # 格式化为8位大写十六进制 CanID = ''.join(format(b, '02X') for b in id_bytes) # 提取ID字节 CanFramType = "Cycle" Len = 8 CanDataSpace = '' PGNdata = '' PGNID = int(Framedata[12 * index + 9] ) + int(Framedata[12 * index + 10]* 0x100) PGNSignl = self.Frame_analoy_PGN_Signal(PGNID,Framedata[12 * index + 12:]) # 提取数据部分 PGNdata = ''.join( format(Framedata[12 * index + 12 + posindex], '02X') for posindex in range(8) ).upper() try: CanDataSpace = ' '.join( format(Framedata[12 * index + 12 + posindex], '02X') for posindex in range(8) ) except IndexError: continue current_data = CanDataSpace.split() if CanID in self.last_data_dict: last_data = self.last_data_dict[CanID].split() changed_indices = [] for i in range(min(len(last_data), len(current_data))): if last_data[i] != current_data[i]: changed_indices.append(i) self.changed_bytes_dict[CanID] = changed_indices else: self.changed_bytes_dict[CanID] = [] # 新ID无变化 self.last_data_dict[CanID] = CanDataSpace CanItemData = [Cantime, CanID, CanFramType, Len, CanDataSpace] # if CanID == "0C000003": # self.count=self.count+1 # print(CanDataSpace,self.count) # ✅ 只有在白名单内的PGNID才处理PGN信号 # 获取当前PGN数据 current_pgn_data = PGNdata # 使用上面生成的两位格式数据 # 检查数据变化 if PGNID in self.last_pgn_data_dict: last_data = self.last_pgn_data_dict[PGNID] changed_indices = [] for i in range(min(len(last_data), len(current_pgn_data) // 2)): start_idx = i * 2 end_idx = start_idx + 2 if last_data[start_idx:end_idx] != current_pgn_data[start_idx:end_idx]: changed_indices.append(i) self.changed_pgn_bytes_dict[PGNID] = changed_indices else: self.changed_pgn_bytes_dict[PGNID] = [] # 新PGN ID无变化 self.last_pgn_data_dict[PGNID] = current_pgn_data if PGNID in self.allowed_pgn_ids: PGNSignl = self.Frame_analoy_PGN_Signal(PGNID, Framedata[12 * index + 12:]) SignalItemData = [hex(PGNID)[2:].upper(), CanID, PGNdata, PGNSignl] if all(not sublist for sublist in CanPGNItemList) or CanPGNItemList[0][0] == 0: if len(CanPGNItemList): CanPGNItemList.pop(0) CanPGNItemList.insert(0, SignalItemData) else: Listpos = self.find_in_2d_list(CanPGNItemList, CanID) if Listpos is not None: CanPGNItemList[Listpos[0]] = SignalItemData else: CanPGNItemList.append(SignalItemData) if CanID in self.last_frame_time : last_time = self.last_frame_time[CanID] cycle_ms = (current_time - last_time) * 1000 # 有效周期过滤 # if 10 < cycle_ms < 10000: # 10ms-10s合理范围 self.cycle_dict[CanID] = cycle_ms else: # 新ID初始化 self.cycle_dict[CanID] = 0 # 更新最后出现时间 self.last_frame_time[CanID] = current_time filtered_cycles = getattr(self, 'filter_cycles', []) is_filtered = False if filtered_cycles: for filtered_cycle in filtered_cycles: if filtered_cycle == 20: if cycle_ms < 50: is_filtered = True break elif filtered_cycle == 50: if 50 <= cycle_ms <= 100: is_filtered = True break elif filtered_cycle == 100: if 100 <= cycle_ms <= 190: is_filtered = True break elif filtered_cycle == 200: if 200 <= cycle_ms <= 400: is_filtered = True break elif filtered_cycle == 500: if 500 <= cycle_ms <= 600: is_filtered = True break elif filtered_cycle == 1000: if 600 <= cycle_ms <= 1000: is_filtered = True break # 根据过滤状态更新相应的列表 if is_filtered: # 更新到filteredCanOBDItemList Listpos = self.find_in_2d_list(filteredCanOBDItemList, CanID) if Listpos is not None: filteredCanOBDItemList[Listpos[0]] = CanItemData self.data_updated_ids.add(CanID) else: filteredCanOBDItemList.append(CanItemData) self.new_added_ids.add(CanID) else: # 更新到CanOBDItemList Listpos = self.find_in_2d_list(CanOBDItemList, CanID) if Listpos is not None: CanOBDItemList[Listpos[0]] = CanItemData self.data_updated_ids.add(CanID) else: CanOBDItemList.append(CanItemData) self.new_added_ids.add(CanID) # self.last_data_time = time.time() # 解析到有效帧时更新时间 if "18FEBD00" in self.cycle_dict: print(self.cycle_dict["18FEBD00"]) def find_in_2d_list(self,matrix, target): for i, row in enumerate(matrix): if any(x == target for x in row): return (i, row.index(target)) # 使用row.index()找到具体列的索引 return None def Frame_analoy_PGN_Signal(self, PGNID, Framedata): # 确保数据是整数列表（0-255） if not all(isinstance(x, int) for x in Framedata): Framedata = [int(x) for x in Framedata] # 根据J1939规范解析 if PGNID == 0xFEF1: # 车速 (CCVS1) # 位置2-3 (索引1-2)，大端序，单位1/256 km/h raw_val = (Framedata[1] << 8) | Framedata[2] return raw_val / 256.0 elif PGNID == 0xFE6C: # 车速 (TCO1) - 新增 # 位置7-8 (索引6-7)，大端序，单位1/256 km/h raw_val = (Framedata[6] << 8) | Framedata[7] return raw_val / 256.0 elif PGNID == 0xF004: # 发动机转速+负载 # 负载：位置3 (索引2)，单位1% engine_load = Framedata[2] & 0x7F # 取7位 # 转速：位置4-5 (索引3-4)，大端序，单位0.125 RPM raw_rpm = (Framedata[3] << 8) | Framedata[4] rpm = raw_rpm * 0.125 return f'{engine_load}|{rpm}' elif PGNID == 0xFEC1: # 里程表 (VDHR) # 位置1-4 (索引0-3)，大端序，单位0.125米 raw_val = int(Framedata[3] * 0x1000000) + int(Framedata[2] * 0x10000) + int(Framedata[1] * 0x100) + int(Framedata[0]) return raw_val * 0.125 # 转换为米 elif PGNID == 0xFEE5: # 发动机小时数 # 位置1-4 (索引0-3)，大端序，单位0.05小时 raw_val = (Framedata[0] << 24) | (Framedata[1] << 16) | (Framedata[2] << 8) | Framedata[3] return raw_val * 0.05 elif PGNID == 0xFEF2: # 平均油耗 # 位置1-2 (索引0-1)，大端序，单位0.05 L/h raw_val = (Framedata[0] << 8) | Framedata[1] return raw_val * 0.05 elif PGNID == 0xFEEE: # 冷却液温度 # 位置1 (索引0)，单位1°C，偏移-40 return Framedata[0] - 40 elif PGNID == 0xFE56: # 燃油液位 # 位置1 (索引0)，单位0.4% return Framedata[0] * 0.4 elif PGNID == 0xF005: # 档位 # 位置4 (索引3)，直接返回值 return Framedata[3] return None 这是serialpro文件 # -*- coding: utf-8 -*- import threading # Form implementation generated from reading ui file 'CanOBD.ui' # # Created by: PyQt5 UI code generator 5.15.9 # # WARNING: Any manual changes made to this file will be lost when pyuic5 is # run again. Do not edit this file unless you know what you are doing. from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import QThread, pyqtSignal,QTimer from PyQt5.QtWidgets import QApplication, QTableWidget, QTableWidgetItem,QTreeWidget, QTreeWidgetItem from SerialPro import SerialPort as SerialThread from SerialPro import CanOBDItemList,CanPGNItemList,filteredCanOBDItemList import time import serial import serial.tools.list_ports import binascii import struct class RichTextDelegate(QtWidgets.QStyledItemDelegate): def paint(self, painter, option, index): if index.column() == 4: text = index.data(QtCore.Qt.DisplayRole) if not text: return # 创建 QTextDocument 并设置 HTML 内容 doc = QtGui.QTextDocument() doc.setHtml(text) # 设置基础字体（可以显式调大字体） font = option.font font.setPointSize(font.pointSize() + 2) # 调大字体 2pt，比如原来是 10pt → 12pt doc.setDefaultFont(font) # 调整绘制区域（不影响字体大小，仅调整边距） rect = option.rect.adjusted(2, 0, -2, 0) # 左右各留出 2 像素的空白 # 绘制背景 style = QtWidgets.QApplication.style() style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, option, painter) # 绘制文本 painter.save() painter.translate(rect.topLeft()) doc.drawContents(painter, QtCore.QRectF(0, 0, rect.width(), rect.height())) painter.restore() else: super().paint(painter, option, index) class RichTextTreeDelegate(QtWidgets.QStyledItemDelegate): def paint(self, painter, option, index): if index.column() == 2: # 只处理数据列 text = index.data(QtCore.Qt.DisplayRole) if not text: return super().paint(painter, option, index) # 创建QTextDocument并设置HTML内容 doc = QtGui.QTextDocument() doc.setHtml(text) # 设置基础字体 font = option.font font.setPointSize(font.pointSize()) doc.setDefaultFont(font) # 调整绘制区域 rect = option.rect.adjusted(2, 0, -2, 0) # 绘制背景 style = QtWidgets.QApplication.style() style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, option, painter) # 绘制文本 painter.save() painter.translate(rect.topLeft()) doc.drawContents(painter, QtCore.QRectF(0, 0, rect.width(), rect.height())) painter.restore() else: super().paint(painter, option, index) class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(1220, 940) font = QtGui.QFont() font.setPointSize(12) MainWindow.setFont(font) self.CanOBDHiddenList = [] # 新增隐藏列表 self.last_checked_cycles = [] # 记录上一次的过滤条件 self.filter_changed = False # 过滤条件是否变化 self.filter_cycles = [] # 添加这一行用于存储过滤周期 self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.tabWidget = QtWidgets.QTabWidget(self.centralwidget) self.tabWidget.setGeometry(QtCore.QRect(0, 0, 1041, 940)) self.tabWidget.setObjectName("tabWidget") self.tab = QtWidgets.QWidget() self.tab.setObjectName("tab") self.tableWidget = QtWidgets.QTableWidget(self.tab) self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1031, 940)) self.tableWidget.setObjectName("tableWidget") self.tableWidget.setColumnCount(5) self.tableWidget.setRowCount(150) #富文本委托 self.tableWidget.setItemDelegate(RichTextDelegate()) for num in range(0,150,1): item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(num, item) item = QtWidgets.QTableWidgetItem() font = QtGui.QFont() font.setKerning(False) item.setFont(font) for line in range(0,5,1): self.tableWidget.setHorizontalHeaderItem(line, item) item = QtWidgets.QTableWidgetItem() self.tabWidget.addTab(self.tab, "") self.tab_2 = QtWidgets.QWidget() self.tab_2.setObjectName("CanOBD Cfg Set") self.mSpeedTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mSpeedTreeWidget.setGeometry(QtCore.QRect(10, 0, 1031, 101)) self.mSpeedTreeWidget.setObjectName("mSpeedTreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mSpeedTreeWidget.headerItem().setFont(0, font) self.mSpeedTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mSpeedTreeWidget.headerItem().setFont(3, font) self.mRPMTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mRPMTreeWidget.setGeometry(QtCore.QRect(10, 100, 1031, 91)) self.mRPMTreeWidget.setObjectName("mRPMTreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mRPMTreeWidget.headerItem().setFont(0, font) self.mRPMTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mRPMTreeWidget.headerItem().setFont(3, font) self.mVDHRTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mVDHRTreeWidget.setGeometry(QtCore.QRect(10, 190, 1031, 91)) self.mVDHRTreeWidget.setObjectName("mVDHRTreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mVDHRTreeWidget.headerItem().setFont(0, font) self.mVDHRTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mVDHRTreeWidget.headerItem().setFont(3, font) self.mHoursTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mHoursTreeWidget.setGeometry(QtCore.QRect(10, 280, 1031, 101)) self.mHoursTreeWidget.setObjectName("mHoursTreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mHoursTreeWidget.headerItem().setFont(0, font) self.mHoursTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mHoursTreeWidget.headerItem().setFont(3, font) self.mEECTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mEECTreeWidget.setGeometry(QtCore.QRect(10, 380, 1031, 91)) self.mEECTreeWidget.setObjectName("mEECTreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mEECTreeWidget.headerItem().setFont(0, font) self.mEECTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mEECTreeWidget.headerItem().setFont(3, font) self.mET1TreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mET1TreeWidget.setGeometry(QtCore.QRect(10, 470, 1031, 101)) self.mET1TreeWidget.setObjectName("mET1TreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mET1TreeWidget.headerItem().setFont(0, font) self.mET1TreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mET1TreeWidget.headerItem().setFont(3, font) self.mAT1T1ITreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mAT1T1ITreeWidget.setGeometry(QtCore.QRect(10, 570, 1031, 91)) self.mAT1T1ITreeWidget.setObjectName("mAT1T1ITreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mAT1T1ITreeWidget.headerItem().setFont(0, font) self.mAT1T1ITreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mAT1T1ITreeWidget.headerItem().setFont(3, font) self.mLFETreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mLFETreeWidget.setGeometry(QtCore.QRect(10, 660, 1031, 101)) self.mLFETreeWidget.setObjectName("mLFETreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mLFETreeWidget.headerItem().setFont(0, font) self.mLFETreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mLFETreeWidget.headerItem().setFont(3, font) self.mETC2TreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mETC2TreeWidget.setGeometry(QtCore.QRect(10, 760, 1031, 101)) self.mETC2TreeWidget.setObjectName("mETC2TreeWidget") font = QtGui.QFont() font.setPointSize(12) self.mETC2TreeWidget.headerItem().setFont(0, font) self.mETC2TreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mETC2TreeWidget.headerItem().setFont(3, font) self.tabWidget.addTab(self.tab_2, "") self.mComCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mComCfgBox.setGeometry(QtCore.QRect(1040, 10, 191, 231)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mComCfgBox.setFont(font) self.mComCfgBox.setObjectName("mComCfgBox") self.mPortName = QtWidgets.QLabel(self.mComCfgBox) self.mPortName.setGeometry(QtCore.QRect(20, 30, 61, 21)) self.mPortName.setObjectName("mPortName") self.mBpsName = QtWidgets.QLabel(self.mComCfgBox) self.mBpsName.setGeometry(QtCore.QRect(20, 60, 61, 21)) self.mBpsName.setObjectName("mBpsName") self.mDatabitName = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitName.setGeometry(QtCore.QRect(20, 90, 61, 21)) self.mDatabitName.setObjectName("mDatabitName") self.mStopName = QtWidgets.QLabel(self.mComCfgBox) self.mStopName.setGeometry(QtCore.QRect(20, 120, 61, 21)) self.mStopName.setObjectName("mStopName") self.mOddName = QtWidgets.QLabel(self.mComCfgBox) self.mOddName.setGeometry(QtCore.QRect(20, 150, 61, 21)) self.mOddName.setObjectName("mOddName") self.mDatabitVal = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitVal.setGeometry(QtCore.QRect(100, 90, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mDatabitVal.setFont(font) self.mDatabitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mDatabitVal.setAlignment(QtCore.Qt.AlignCenter) self.mDatabitVal.setObjectName("mDatabitVal") self.mStopBitVal = QtWidgets.QLabel(self.mComCfgBox) self.mStopBitVal.setGeometry(QtCore.QRect(100, 120, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mStopBitVal.setFont(font) self.mStopBitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mStopBitVal.setAlignment(QtCore.Qt.AlignCenter) self.mStopBitVal.setObjectName("mStopBitVal") self.mOddVal = QtWidgets.QLabel(self.mComCfgBox) self.mOddVal.setGeometry(QtCore.QRect(100, 150, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mOddVal.setFont(font) self.mOddVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mOddVal.setAlignment(QtCore.Qt.AlignCenter) self.mOddVal.setObjectName("mOddVal") self.mPortVal = QtWidgets.QComboBox(self.mComCfgBox) self.mPortVal.setGeometry(QtCore.QRect(90, 30, 81, 22)) self.mPortVal.setObjectName("mPortVal") self.mPortVal.addItem("") self.mPortVal.addItem("") self.mPortVal.addItem("") self.mPortVal.addItem("") self.mPortVal.addItem("") self.mPortVal.addItem("") self.mBPSVal = QtWidgets.QComboBox(self.mComCfgBox) self.mBPSVal.setGeometry(QtCore.QRect(90, 60, 81, 22)) self.mBPSVal.setObjectName("mBPSVal") self.mBPSVal.addItem("") self.mBPSVal.addItem("") self.mBPSVal.addItem("") self.mBPSVal.addItem("") self.mBPSVal.addItem("") self.mBPSVal.addItem("") self.mOpenSerial = QtWidgets.QDialogButtonBox(self.mComCfgBox) self.mOpenSerial.setGeometry(QtCore.QRect(20, 190, 156, 31)) self.mOpenSerial.setStandardButtons(QtWidgets.QDialogButtonBox.Close|QtWidgets.QDialogButtonBox.Open) self.mOpenSerial.setObjectName("mOpenSerial") self.mCycleCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mCycleCfgBox.setGeometry(QtCore.QRect(1040, 260, 191, 221)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mCycleCfgBox.setFont(font) self.mCycleCfgBox.setObjectName("mCycleCfgBox") self.mcheck1000ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck1000ms.setGeometry(QtCore.QRect(20, 180, 141, 31)) self.mcheck1000ms.setObjectName("mcheck1000ms") self.mcheck500ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck500ms.setGeometry(QtCore.QRect(20, 150, 141, 31)) self.mcheck500ms.setObjectName("mcheck500ms") self.mcheck100ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck100ms.setGeometry(QtCore.QRect(20, 90, 141, 31)) self.mcheck100ms.setObjectName("mcheck100ms") self.mcheck50ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck50ms.setGeometry(QtCore.QRect(20, 60, 141, 31)) self.mcheck50ms.setObjectName("mcheck50ms") self.mcheck20ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck20ms.setGeometry(QtCore.QRect(20, 30, 141, 31)) self.mcheck20ms.setObjectName("mcheck20ms") self.mcheck200ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck200ms.setGeometry(QtCore.QRect(20, 120, 141, 31)) self.mcheck200ms.setObjectName("mcheck200ms") self.mEventSigBox = QtWidgets.QGroupBox(self.centralwidget) self.mEventSigBox.setGeometry(QtCore.QRect(1050, 490, 191, 151)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mEventSigBox.setFont(font) self.mEventSigBox.setObjectName("mEventSigBox") self.radioLeftREvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioLeftREvent.setGeometry(QtCore.QRect(10, 30, 151, 16)) self.radioLeftREvent.setObjectName("radioLeftREvent") self.radioKiilEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioKiilEvent.setGeometry(QtCore.QRect(10, 90, 151, 16)) self.radioKiilEvent.setObjectName("radioKiilEvent") self.radioPEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioPEvent.setGeometry(QtCore.QRect(10, 120, 151, 16)) self.radioPEvent.setObjectName("radioPEvent") self.radioOpenCloseEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioOpenCloseEvent.setGeometry(QtCore.QRect(10, 60, 151, 16)) self.radioOpenCloseEvent.setObjectName("radioOpenCloseEvent") self.mReadOBDinfBox = QtWidgets.QGroupBox(self.centralwidget) self.mReadOBDinfBox.setGeometry(QtCore.QRect(1050, 660, 191, 171)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mReadOBDinfBox.setFont(font) self.mReadOBDinfBox.setObjectName("mReadOBDinfBox") self.radioVinRead = QtWidgets.QRadioButton(self.mReadOBDinfBox) self.radioVinRead.setGeometry(QtCore.QRect(10, 40, 141, 21)) self.radioVinRead.setObjectName("radioVinRead") self.mVinInfShow = QtWidgets.QTextBrowser(self.mReadOBDinfBox) self.mVinInfShow.setGeometry(QtCore.QRect(10, 70, 171, 91)) self.mVinInfShow.setObjectName("mVinInfShow") MainWindow.setCentralWidget(self.centralwidget) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName("statusbar") MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) self.tabWidget.setCurrentIndex(0) QtCore.QMetaObject.connectSlotsByName(MainWindow) self.mSpeedTreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mRPMTreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mVDHRTreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mHoursTreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mEECTreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mET1TreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mAT1T1ITreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mLFETreeWidget.setItemDelegate(RichTextTreeDelegate()) self.mETC2TreeWidget.setItemDelegate(RichTextTreeDelegate()) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow")) for num in range(0, 150, 1): item = self.tableWidget.verticalHeaderItem(num) item.setText(_translate("MainWindow", str(num +1))) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate("MainWindow", "时间标识")) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate("MainWindow", "帧ID")) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate("MainWindow", "帧类型")) item = self.tableWidget.horizontalHeaderItem(3) item.setText(_translate("MainWindow", "长度")) item = self.tableWidget.horizontalHeaderItem(4) item.setText(_translate("MainWindow", "数据 (BIT7--BIT0 大端模式)")) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("MainWindow", "Tab 1")) self.mSpeedTreeWidget.headerItem().setText(0, _translate("MainWindow", "速度[CCVS1]")) self.mSpeedTreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mSpeedTreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mSpeedTreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(km/h)")) self.mSpeedTreeWidget.setColumnWidth(0, 150) self.mSpeedTreeWidget.setColumnWidth(1, 150) self.mSpeedTreeWidget.setColumnWidth(2, 550) self.mSpeedTreeWidget.setColumnWidth(3, 150) self.mRPMTreeWidget.headerItem().setText(0, _translate("MainWindow", "转速[EEC1]")) self.mRPMTreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mRPMTreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mRPMTreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(rpm)")) self.mRPMTreeWidget.setColumnWidth(0, 150) self.mRPMTreeWidget.setColumnWidth(1, 150) self.mRPMTreeWidget.setColumnWidth(2, 550) self.mRPMTreeWidget.setColumnWidth(3, 150) self.mVDHRTreeWidget.headerItem().setText(0, _translate("MainWindow", "里程[VDHR]")) self.mVDHRTreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mVDHRTreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mVDHRTreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(km)")) self.mVDHRTreeWidget.setColumnWidth(0, 150) self.mVDHRTreeWidget.setColumnWidth(1, 150) self.mVDHRTreeWidget.setColumnWidth(2, 550) self.mVDHRTreeWidget.setColumnWidth(3, 150) self.mHoursTreeWidget.headerItem().setText(0, _translate("MainWindow", "工作时长[HOURS]")) self.mHoursTreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mHoursTreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mHoursTreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(hours)")) self.mHoursTreeWidget.setColumnWidth(0, 150) self.mHoursTreeWidget.setColumnWidth(1, 150) self.mHoursTreeWidget.setColumnWidth(2, 550) self.mHoursTreeWidget.setColumnWidth(3, 150) self.mEECTreeWidget.headerItem().setText(0, _translate("MainWindow", "发动机负载[EEC1]")) self.mEECTreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mEECTreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mEECTreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(%)")) self.mEECTreeWidget.setColumnWidth(0, 150) self.mEECTreeWidget.setColumnWidth(1, 150) self.mEECTreeWidget.setColumnWidth(2, 550) self.mEECTreeWidget.setColumnWidth(3, 150) self.mET1TreeWidget.headerItem().setText(0, _translate("MainWindow", "冷却液温度[ET1]")) self.mET1TreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mET1TreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mET1TreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(°)")) self.mET1TreeWidget.setColumnWidth(0, 150) self.mET1TreeWidget.setColumnWidth(1, 150) self.mET1TreeWidget.setColumnWidth(2, 550) self.mET1TreeWidget.setColumnWidth(3, 150) self.mAT1T1ITreeWidget.headerItem().setText(0, _translate("MainWindow", "燃油液面[AT1T1I]")) self.mAT1T1ITreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mAT1T1ITreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mAT1T1ITreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(%)")) self.mAT1T1ITreeWidget.setColumnWidth(0, 150) self.mAT1T1ITreeWidget.setColumnWidth(1, 150) self.mAT1T1ITreeWidget.setColumnWidth(2, 550) self.mAT1T1ITreeWidget.setColumnWidth(3, 150) self.mLFETreeWidget.headerItem().setText(0, _translate("MainWindow", "平均油耗[LFE]")) self.mLFETreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mLFETreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mLFETreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal(L/h)")) self.mLFETreeWidget.setColumnWidth(0, 150) self.mLFETreeWidget.setColumnWidth(1, 150) self.mLFETreeWidget.setColumnWidth(2, 550) self.mLFETreeWidget.setColumnWidth(3, 150) self.mETC2TreeWidget.headerItem().setText(0, _translate("MainWindow", "档位[ETC2]")) self.mETC2TreeWidget.headerItem().setText(1, _translate("MainWindow", "CanID")) self.mETC2TreeWidget.headerItem().setText(2, _translate("MainWindow", "Data")) self.mETC2TreeWidget.headerItem().setText(3, _translate("MainWindow", "Signal")) self.mETC2TreeWidget.setColumnWidth(0, 150) self.mETC2TreeWidget.setColumnWidth(1, 150) self.mETC2TreeWidget.setColumnWidth(2, 550) self.mETC2TreeWidget.setColumnWidth(3, 150) self.tableWidget.setColumnWidth(0, 200) self.tableWidget.setColumnWidth(1, 150) self.tableWidget.setColumnWidth(4,450) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("MainWindow", "CanOBD Inf Show")) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate("MainWindow", "CanOBD J1939 Show")) self.mComCfgBox.setTitle(_translate("MainWindow", "串口配置")) self.mPortName.setText(_translate("MainWindow", "端口号")) self.mBpsName.setText(_translate("MainWindow", "波特率")) self.mDatabitName.setText(_translate("MainWindow", "数据位")) self.mStopName.setText(_translate("MainWindow", "停止位")) self.mOddName.setText(_translate("MainWindow", "检验位")) self.mDatabitVal.setText(_translate("MainWindow", "8")) self.mStopBitVal.setText(_translate("MainWindow", "1")) self.mOddVal.setText(_translate("MainWindow", "无")) self.mBPSVal.setItemText(0, _translate("MainWindow", "9600")) self.mBPSVal.setItemText(1, _translate("MainWindow", "19200")) self.mBPSVal.setItemText(2, _translate("MainWindow", "115200")) self.mBPSVal.setItemText(3, _translate("MainWindow", "230400")) self.mBPSVal.setItemText(4, _translate("MainWindow", "256000")) self.mBPSVal.setItemText(5, _translate("MainWindow", "460800")) port_list = list(serial.tools.list_ports.comports()) if port_list.__len__() is not 0: for num in range(port_list.__len__()): self.mPortVal.setItemText(num, _translate("MainWindow", str(port_list[num].device))) serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial = SerialThread(serialport, serialbaudrate) self.mCycleCfgBox.setTitle(_translate("MainWindow", "过滤设置（周期）")) self.mcheck1000ms.setText(_translate("MainWindow", "1000ms 周期")) self.mcheck500ms.setText(_translate("MainWindow", "500ms 周期")) self.mcheck100ms.setText(_translate("MainWindow", "100ms 周期")) self.mcheck50ms.setText(_translate("MainWindow", "50ms 周期")) self.mcheck20ms.setText(_translate("MainWindow", "20ms 周期")) self.mcheck200ms.setText(_translate("MainWindow", "200ms 周期")) self.mEventSigBox.setTitle(_translate("MainWindow", "事件信号策略")) self.radioLeftREvent.setText(_translate("MainWindow", "左右转 事件")) self.radioKiilEvent.setText(_translate("MainWindow", "刹车 事件")) self.radioPEvent.setText(_translate("MainWindow", "档位 事件")) self.radioOpenCloseEvent.setText(_translate("MainWindow", "开关门 事件")) self.mReadOBDinfBox.setTitle(_translate("MainWindow", "主动读取信息")) self.radioVinRead.setText(_translate("MainWindow", "VIN 信息")) self.radioLeftREvent.toggled.connect(self.on_radio_left_r_event_toggled) def OpenSerial(self): if self.LSerial != None: if self.LSerial.SerialIsOpen(): self.LSerial.__del__() port_list = list(serial.tools.list_ports.comports()) if port_list.__len__() != 0: serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial.__init__(serialport,serialbaudrate) # 开启线程 self.thread = Worker() # 创建线程对象 self.thread.update_signal.connect(self.CanOBDdatarefresh) # 连接信号和槽 self.thread.update_signal.connect(self.CanOBDSignalAnalyPro) # 连接信号和槽 # self.thread.update_signal.connect(self.LSerial.Com_read_frame) # 连接信号和槽 self.thread.start() # 启动线程 #self.LSerial.Com_read_frame() self.LSerial.start_reading() # <-- 在这里启动读取线程 def CloseSerial(self): if self.LSerial.SerialIsOpen(): self.LSerial.close() def Serialconnectslot(self): self.mOpenSerial.accepted.connect(self.OpenSerial) self.mOpenSerial.rejected.connect(self.CloseSerial) def on_radio_left_r_event_toggled(self, checked): if checked: # 勾选所有周期过滤项 self.mcheck20ms.setChecked(True) self.mcheck50ms.setChecked(True) self.mcheck100ms.setChecked(True) self.mcheck200ms.setChecked(True) self.mcheck500ms.setChecked(True) self.mcheck1000ms.setChecked(True) def get_checked_cycles(self): """返回用户勾选的所有周期值（毫秒）""" checked_cycles = [] if self.mcheck20ms.isChecked(): checked_cycles.append(20) if self.mcheck50ms.isChecked(): checked_cycles.append(50) if self.mcheck100ms.isChecked(): checked_cycles.append(100) if self.mcheck200ms.isChecked(): checked_cycles.append(200) if self.mcheck500ms.isChecked(): checked_cycles.append(500) if self.mcheck1000ms.isChecked(): checked_cycles.append(1000) return checked_cycles def is_cycle_filtered(self, cycle, filtered_cycles): """检查给定周期是否在过滤范围内，并根据周期大小动态调整容差""" if cycle == 0: # 如果没有记录周期，默认不过滤 return False for filtered_cycle in filtered_cycles: # 定义过滤范围 if filtered_cycle == 20: if cycle <= 50: return True elif filtered_cycle == 50: if 50 <= cycle <= 100: return True elif filtered_cycle == 100: if 100 <= cycle <= 200: return True elif filtered_cycle == 200: if 200 <= cycle <= 400: return True elif filtered_cycle == 500: if 500 <= cycle <= 600: return True elif filtered_cycle == 1000: if 600 <= cycle <= 1000: return True return False def refresh_full_table(self): """全表刷新：保留表格结构，只更新内容""" # 获取当前过滤条件 filtered_cycles = self.get_checked_cycles() # 合并所有数据（注意不要提前 clear） all_items = [] all_items.extend(CanOBDItemList) all_items.extend(filteredCanOBDItemList) # 清空原列表 CanOBDItemList.clear() filteredCanOBDItemList.clear() # 用 set 来记录已经加入的数据，防止重复插入 added_can_ids = set() # 重新分配数据到两个列表 for item in all_items: can_id = item[1] if can_id == 0: continue # 跳过无效数据 cycle = self.LSerial.cycle_dict.get(can_id, 0) if self.is_cycle_filtered(cycle, filtered_cycles): if can_id not in added_can_ids: filteredCanOBDItemList.append(item) added_can_ids.add(can_id) else: if can_id not in added_can_ids: CanOBDItemList.append(item) added_can_ids.add(can_id) # 保留表格结构（150行），只清空所有内容 for row in range(self.tableWidget.rowCount()): for col in range(self.tableWidget.columnCount()): item = self.tableWidget.item(row, col) if item: item.setText("") # 填充符合条件的行 for row_index, item_data in enumerate(CanOBDItemList): if item_data[1] == 0: # 跳过无效数据 continue self.update_table_row(row_index, item_data) self.tableWidget.show() def update_table_row(self, row_index, item_data): """更新表格的指定行，标记变化字节""" # 前4列正常显示 for col in range(4): self.tableWidget.setItem(row_index, col, QtWidgets.QTableWidgetItem(str(item_data[col]))) # 第4列（数据）特殊处理：标记变化字节 can_id = item_data[1] changed_indices = [] if hasattr(self, 'LSerial') and self.LSerial is not None: changed_indices = self.LSerial.changed_bytes_dict.get(can_id, []) data_bytes = item_data[4].split() rich_text = "" for idx, byte_str in enumerate(data_bytes): if idx in changed_indices: rich_text += f'<font color="red">{byte_str}</font> ' else: rich_text += f'{byte_str} ' # 创建富文本显示项 item = QtWidgets.QTableWidgetItem() item.setData(QtCore.Qt.DisplayRole, item_data[4]) # 原始数据用于排序 item.setData(QtCore.Qt.EditRole, rich_text) # 富文本用于显示 self.tableWidget.setItem(row_index, 4, item) def CanOBDdatarefresh(self): filtered_cycles = self.get_checked_cycles() if hasattr(self, 'LSerial'): self.LSerial.set_filter_cycles(filtered_cycles) # 判断是否需要执行全表刷新 current_cycles = self.get_checked_cycles() if sorted(current_cycles) != sorted(self.last_checked_cycles): self.refresh_full_table() self.last_checked_cycles = sorted(current_cycles) return # 获取更新和新增的CAN ID all_update_ids = self.LSerial.data_updated_ids | self.LSerial.new_added_ids # 遍历每个可能变化的ID for can_id in all_update_ids: found_in_main = False found_in_filtered = False # 查找在主列表中的索引 main_index = None for idx, item in enumerate(CanOBDItemList): if item[1] == can_id: main_index = idx found_in_main = True break # 查找在过滤列表中的索引 for idx, item in enumerate(filteredCanOBDItemList): if item[1] == can_id: found_in_filtered = True break cycle = self.LSerial.cycle_dict.get(can_id, 0) should_filter = self.is_cycle_filtered(cycle, filtered_cycles) if found_in_main: if should_filter: # 应该过滤 -> 移动到过滤列表并清空对应行 filtered_item = CanOBDItemList.pop(main_index) filteredCanOBDItemList.append(filtered_item) self.clear_table_row(main_index) else: # 不应过滤 -> 更新行数据 new_data = next((item for item in CanOBDItemList + [filtered_item for filtered_item in filteredCanOBDItemList if filtered_item[1] == can_id]), None) if new_data: self.update_table_row(main_index, new_data) elif found_in_filtered: if not should_filter: # 不应该过滤 -> 从过滤列表移到主列表并恢复行数据 for idx, item in enumerate(filteredCanOBDItemList): if item[1] == can_id: unfiltered_item = filteredCanOBDItemList.pop(idx) CanOBDItemList.append(unfiltered_item) new_row_index = len(CanOBDItemList) - 1 self.update_table_row(new_row_index, unfiltered_item) break else: # 新出现的数据 new_data = next((item for item in SerialPro.CanOBDItemList if item[1] == can_id), None) if new_data: cycle = self.LSerial.cycle_dict.get(can_id, 0) if self.is_cycle_filtered(cycle, filtered_cycles): filteredCanOBDItemList.append(new_data) else: CanOBDItemList.append(new_data) new_row_index = len(CanOBDItemList) - 1 self.update_table_row(new_row_index, new_data) # 统一刷新所有行，确保状态一致 self.sync_table_with_data() self.LSerial.data_updated_ids.clear() self.LSerial.new_added_ids.clear() def sync_table_with_data(self): """ 同步表格与数据源，确保前 len(CanOBDItemList) 行是真实数据， 超出部分保持空白或清除内容。 """ max_rows = self.tableWidget.rowCount() for row in range(max_rows): if row < len(CanOBDItemList): item_data = CanOBDItemList[row] if item_data and item_data[1] != 0: self.update_table_row(row, item_data) else: self.clear_table_row(row) else: # 清除多余行的内容（设置为空白） for col in range(self.tableWidget.columnCount()): item = self.tableWidget.item(row, col) if item: item.setText("") def clear_table_row(self, row_index): """清除行内容时重置富文本显示""" for col in range(5): item = self.tableWidget.item(row_index, col) if item: item.setText("") # 清除富文本格式 item.setData(QtCore.Qt.EditRole, "") else: self.tableWidget.setItem(row_index, col, QtWidgets.QTableWidgetItem("")) def CanOBDSignalAnalyPro(self): index = 0 bfindflag = 0 if all(not sublist for sublist in CanPGNItemList) or CanPGNItemList[0][0] == 0: if len(CanPGNItemList): CanPGNItemList.pop(0) else: for signalindex in CanPGNItemList: value = ''.join(c for c in signalindex[0].lower() if c in '0123456789abcdef') if len(value) % 2 != 0: value = '0' + value signalindex[0] = value PGNCanID = bytes.fromhex(str(signalindex[0])).hex() # 车速 - CCVS1 if (PGNCanID == bytes.fromhex("FEF1").hex()): self.update_tree_widget(self.mSpeedTreeWidget, signalindex, "速度[CCVS1]") # 发动机转速 - EEC1 发动机负载 elif (PGNCanID == bytes.fromhex("F004").hex()): self.update_tree_widget(self.mRPMTreeWidget, signalindex, "转速[EEC1]") self.update_tree_widget(self.mEECTreeWidget, signalindex, "转速[EEC1]") # 里程表 - VDHR elif (PGNCanID == bytes.fromhex("FEC1").hex()): self.update_tree_widget(self.mVDHRTreeWidget, signalindex, "里程[VDHR]") # 发动机工作小时数 - HOURS elif (PGNCanID == bytes.fromhex("FEE5").hex()): self.update_tree_widget(self.mHoursTreeWidget, signalindex, "工作时长[HOURS]") # 平均油耗 - LFE elif (PGNCanID == bytes.fromhex("FEF2").hex()): self.update_tree_widget(self.mLFETreeWidget, signalindex, "平均油耗[LFE]") # 冷却液温度 - ET1 elif (PGNCanID == bytes.fromhex("FEEE").hex()): self.update_tree_widget(self.mET1TreeWidget, signalindex, "冷却液温度[ET1]") # 发动机负载 - EEC1 elif (PGNCanID == bytes.fromhex("F004").hex()): self.update_tree_widget(self.mEECTreeWidget, signalindex, "发动机负载[EEC1]") # 燃油液位 - AT1T1I elif (PGNCanID == bytes.fromhex("FE56").hex()): self.update_tree_widget(self.mAT1T1ITreeWidget, signalindex, "燃油液面[AT1T1I]") # 档位 - ETC2 elif (PGNCanID == bytes.fromhex("F005").hex()): self.update_tree_widget(self.mETC2TreeWidget, signalindex, "档位[ETC2]") def update_tree_widget(self, tree_widget, signal_data, signal_name): """更新树形部件，添加空格并标记变化字节，确保0值显示为00""" num_top_items = tree_widget.topLevelItemCount() bfindflag = False can_id = str(signal_data[1]) pgn_id = signal_data[0].lower() # 确保数据是16位长度（8个字节） data_str = signal_data[2] if len(data_str) != 16: # 如果不是16位，可能是0值被省略 # 补齐到16位 data_str = data_str.zfill(16) # 获取变化字节索引 changed_indices = [] if hasattr(self, 'LSerial') and self.LSerial is not None: try: pgn_id_int = int(pgn_id, 16) changed_indices = self.LSerial.changed_pgn_bytes_dict.get(pgn_id_int, []) except ValueError: pass # 格式化数据字符串（添加空格并确保两位显示） formatted_data = "" for i in range(0, len(data_str), 2): byte_str = data_str[i:i + 2] # 确保每个字节都是两位显示 if len(byte_str) == 1: byte_str = '0' + byte_str if i // 2 in changed_indices: formatted_data += f'<font color="red">{byte_str}</font> ' else: formatted_data += f'{byte_str} ' formatted_data = formatted_data.strip() # 检查是否已存在该CanID的条目 for index in range(num_top_items): if tree_widget.topLevelItem(index).text(1) == can_id: tree_widget.topLevelItem(index).setText(0, signal_name) tree_widget.topLevelItem(index).setText(1, can_id) tree_widget.topLevelItem(index).setText(2, formatted_data) tree_widget.topLevelItem(index).setText(3, str(signal_data[3])) bfindflag = True break # 如果不存在则创建新条目 if not bfindflag: item = QTreeWidgetItem(tree_widget) item.setText(0, signal_name) item.setText(1, can_id) item.setText(2, formatted_data) item.setText(3, str(signal_data[3])) tree_widget.addTopLevelItem(item) tree_widget.expandAll() tree_widget.show() class Worker(QThread): update_signal = pyqtSignal(int) # 定义一个信号，用于传递更新信息到主线程 def run(self): # 模拟耗时操作 while True: time.sleep(0.5) self.update_signal.emit(1) # 发射信号，传递更新信息 这是canobd文件 这段程序在每秒接收200条can数据时，计算周期为1000ms的信号的周期，反馈的数据却是1800ms，但是 用 if CanID == "0C000003": self.count=self.count+1 print(CanDataSpace,self.count)测试却发现反馈的数据与发送的吻合，说明接收数据是及时的，注释掉界面刷新程序，发现结果仍然是1800ms，能够帮我找出问题吗？
07-24
但这里的问题是我们用同一个时间戳更新了所有报文，导致前一个报文的时间被覆盖，然后下一个报文到来时，计算的时间差是从上一个报文（可能是同一帧中的前一个）到当前的时间差，而实际上它们可能是同一帧的，所以这...
我的程序有接收can数据并显示在tab1上的功能，但它的刷新逻辑有一点冗余，每次都全部重新显示。Frame_analoy_process和CanOBDdatarefresh这两个函数是修改的关键所在，一个是刷新界面的函数，一个是解析报文的函数，负责canobditemlist的更新。我希望程序仅仅在已有的canid中的数据变化或是有新的canid加入时才会更新数据 ，因此需要在更新canobditemlist的程序，也就是Frame_analoy_process中加入两种标识，一种是已有的新数据变化的标志位，一种是新id加入的标志位， if Listpos is not None: CanOBDItemList[Listpos[0]] = CanItemData else: CanOBDItemList.append(CanItemData)在这一段中添加。当CanOBDdatarefresh识别到两种标志位的时候，才会刷新表格的对应行。 下面是完整的文件： canobd： – coding: utf-8 – import threading Form implementation generated from reading ui file ‘CanOBD.ui’ Created by: PyQt5 UI code generator 5.15.9 WARNING: Any manual changes made to this file will be lost when pyuic5 is run again. Do not edit this file unless you know what you are doing. from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import QThread, pyqtSignal,QTimer from PyQt5.QtWidgets import QApplication, QTableWidget, QTableWidgetItem from SerialPro import SerialPort as SerialThread from SerialPro import CanOBDItemList import time import serial import serial.tools.list_ports class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(“MainWindow”) MainWindow.resize(1220, 940) font = QtGui.QFont() font.setPointSize(12) MainWindow.setFont(font) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName(“centralwidget”) self.tabWidget = QtWidgets.QTabWidget(self.centralwidget) self.tabWidget.setGeometry(QtCore.QRect(0, 0, 1041, 940)) self.tabWidget.setObjectName(“tabWidget”) self.tab = QtWidgets.QWidget() self.tab.setObjectName(“tab”) self.tableWidget = QtWidgets.QTableWidget(self.tab) self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1031, 940)) self.tableWidget.setObjectName(“tableWidget”) self.tableWidget.setColumnCount(5) self.tableWidget.setRowCount(150) for num in range(0,150,1): item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(num, item) item = QtWidgets.QTableWidgetItem() font = QtGui.QFont() font.setKerning(False) item.setFont(font) for line in range(0,5,1): self.tableWidget.setHorizontalHeaderItem(line, item) item = QtWidgets.QTableWidgetItem() self.tabWidget.addTab(self.tab, “”) self.tab_2 = QtWidgets.QWidget() self.tab_2.setObjectName(“CanOBD Cfg Set”) self.tabWidget.addTab(self.tab_2, “”) self.mComCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mComCfgBox.setGeometry(QtCore.QRect(1040, 10, 191, 231)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mComCfgBox.setFont(font) self.mComCfgBox.setObjectName(“mComCfgBox”) self.mPortName = QtWidgets.QLabel(self.mComCfgBox) self.mPortName.setGeometry(QtCore.QRect(20, 30, 61, 21)) self.mPortName.setObjectName(“mPortName”) self.mBpsName = QtWidgets.QLabel(self.mComCfgBox) self.mBpsName.setGeometry(QtCore.QRect(20, 60, 61, 21)) self.mBpsName.setObjectName(“mBpsName”) self.mDatabitName = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitName.setGeometry(QtCore.QRect(20, 90, 61, 21)) self.mDatabitName.setObjectName(“mDatabitName”) self.mStopName = QtWidgets.QLabel(self.mComCfgBox) self.mStopName.setGeometry(QtCore.QRect(20, 120, 61, 21)) self.mStopName.setObjectName(“mStopName”) self.mOddName = QtWidgets.QLabel(self.mComCfgBox) self.mOddName.setGeometry(QtCore.QRect(20, 150, 61, 21)) self.mOddName.setObjectName(“mOddName”) self.mDatabitVal = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitVal.setGeometry(QtCore.QRect(100, 90, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mDatabitVal.setFont(font) self.mDatabitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mDatabitVal.setAlignment(QtCore.Qt.AlignCenter) self.mDatabitVal.setObjectName(“mDatabitVal”) self.mStopBitVal = QtWidgets.QLabel(self.mComCfgBox) self.mStopBitVal.setGeometry(QtCore.QRect(100, 120, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mStopBitVal.setFont(font) self.mStopBitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mStopBitVal.setAlignment(QtCore.Qt.AlignCenter) self.mStopBitVal.setObjectName(“mStopBitVal”) self.mOddVal = QtWidgets.QLabel(self.mComCfgBox) self.mOddVal.setGeometry(QtCore.QRect(100, 150, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mOddVal.setFont(font) self.mOddVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mOddVal.setAlignment(QtCore.Qt.AlignCenter) self.mOddVal.setObjectName(“mOddVal”) self.mPortVal = QtWidgets.QComboBox(self.mComCfgBox) self.mPortVal.setGeometry(QtCore.QRect(90, 30, 81, 22)) self.mPortVal.setObjectName(“mPortVal”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mBPSVal = QtWidgets.QComboBox(self.mComCfgBox) self.mBPSVal.setGeometry(QtCore.QRect(90, 60, 81, 22)) self.mBPSVal.setObjectName(“mBPSVal”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mOpenSerial = QtWidgets.QDialogButtonBox(self.mComCfgBox) self.mOpenSerial.setGeometry(QtCore.QRect(20, 190, 156, 31)) self.mOpenSerial.setStandardButtons(QtWidgets.QDialogButtonBox.Close|QtWidgets.QDialogButtonBox.Open) self.mOpenSerial.setObjectName(“mOpenSerial”) self.mCycleCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mCycleCfgBox.setGeometry(QtCore.QRect(1040, 260, 191, 221)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mCycleCfgBox.setFont(font) self.mCycleCfgBox.setObjectName(“mCycleCfgBox”) self.mcheck1000ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck1000ms.setGeometry(QtCore.QRect(20, 180, 141, 31)) self.mcheck1000ms.setObjectName(“mcheck1000ms”) self.mcheck500ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck500ms.setGeometry(QtCore.QRect(20, 150, 141, 31)) self.mcheck500ms.setObjectName(“mcheck500ms”) self.mcheck100ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck100ms.setGeometry(QtCore.QRect(20, 90, 141, 31)) self.mcheck100ms.setObjectName(“mcheck100ms”) self.mcheck50ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck50ms.setGeometry(QtCore.QRect(20, 60, 141, 31)) self.mcheck50ms.setObjectName(“mcheck50ms”) self.mcheck20ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck20ms.setGeometry(QtCore.QRect(20, 30, 141, 31)) self.mcheck20ms.setObjectName(“mcheck20ms”) self.mcheck200ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck200ms.setGeometry(QtCore.QRect(20, 120, 141, 31)) self.mcheck200ms.setObjectName(“mcheck200ms”) self.mEventSigBox = QtWidgets.QGroupBox(self.centralwidget) self.mEventSigBox.setGeometry(QtCore.QRect(1050, 490, 191, 151)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mEventSigBox.setFont(font) self.mEventSigBox.setObjectName(“mEventSigBox”) self.radioLeftREvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioLeftREvent.setGeometry(QtCore.QRect(10, 30, 151, 16)) self.radioLeftREvent.setObjectName(“radioLeftREvent”) self.radioKiilEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioKiilEvent.setGeometry(QtCore.QRect(10, 90, 151, 16)) self.radioKiilEvent.setObjectName(“radioKiilEvent”) self.radioPEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioPEvent.setGeometry(QtCore.QRect(10, 120, 151, 16)) self.radioPEvent.setObjectName(“radioPEvent”) self.radioOpenCloseEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioOpenCloseEvent.setGeometry(QtCore.QRect(10, 60, 151, 16)) self.radioOpenCloseEvent.setObjectName(“radioOpenCloseEvent”) self.mReadOBDinfBox = QtWidgets.QGroupBox(self.centralwidget) self.mReadOBDinfBox.setGeometry(QtCore.QRect(1050, 660, 191, 171)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mReadOBDinfBox.setFont(font) self.mReadOBDinfBox.setObjectName(“mReadOBDinfBox”) self.radioVinRead = QtWidgets.QRadioButton(self.mReadOBDinfBox) self.radioVinRead.setGeometry(QtCore.QRect(10, 40, 141, 21)) self.radioVinRead.setObjectName(“radioVinRead”) self.mVinInfShow = QtWidgets.QTextBrowser(self.mReadOBDinfBox) self.mVinInfShow.setGeometry(QtCore.QRect(10, 70, 171, 91)) self.mVinInfShow.setObjectName(“mVinInfShow”) MainWindow.setCentralWidget(self.centralwidget) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName(“statusbar”) MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) self.tabWidget.setCurrentIndex(0) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate(“MainWindow”, “MainWindow”)) for num in range(0, 150, 1): item = self.tableWidget.verticalHeaderItem(num) item.setText(_translate(“MainWindow”, str(num +1))) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate(“MainWindow”, “时间标识”)) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate(“MainWindow”, “帧ID”)) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate(“MainWindow”, “帧类型”)) item = self.tableWidget.horizontalHeaderItem(3) item.setText(_translate(“MainWindow”, “长度”)) item = self.tableWidget.horizontalHeaderItem(4) item.setText(_translate(“MainWindow”, “数据 (BIT7–BIT0 大端模式)”)) self.tableWidget.setColumnWidth(0, 200) self.tableWidget.setColumnWidth(1, 150) self.tableWidget.setColumnWidth(4,450) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate(“MainWindow”, “CanOBD Inf Show”)) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate(“MainWindow”, “CanOBD Cfg Set”)) self.mComCfgBox.setTitle(_translate(“MainWindow”, “串口配置”)) self.mPortName.setText(_translate(“MainWindow”, “端口号”)) self.mBpsName.setText(_translate(“MainWindow”, “波特率”)) self.mDatabitName.setText(_translate(“MainWindow”, “数据位”)) self.mStopName.setText(_translate(“MainWindow”, “停止位”)) self.mOddName.setText(_translate(“MainWindow”, “检验位”)) self.mDatabitVal.setText(_translate(“MainWindow”, “8”)) self.mStopBitVal.setText(_translate(“MainWindow”, “1”)) self.mOddVal.setText(_translate(“MainWindow”, “无”)) self.mBPSVal.setItemText(0, _translate(“MainWindow”, “9600”)) self.mBPSVal.setItemText(1, _translate(“MainWindow”, “19200”)) self.mBPSVal.setItemText(2, _translate(“MainWindow”, “115200”)) self.mBPSVal.setItemText(3, _translate(“MainWindow”, “230400”)) self.mBPSVal.setItemText(4, _translate(“MainWindow”, “256000”)) self.mBPSVal.setItemText(5, _translate(“MainWindow”, “460800”)) port_list = list(serial.tools.list_ports.comports()) if port_list.len() is not 0: for num in range(port_list.len()): self.mPortVal.setItemText(num, _translate(“MainWindow”, str(port_list[num].device))) serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial = SerialThread(serialport, serialbaudrate) self.mCycleCfgBox.setTitle(_translate(“MainWindow”, “过滤设置（周期）”)) self.mcheck1000ms.setText(_translate(“MainWindow”, “1000ms 周期”)) self.mcheck500ms.setText(_translate(“MainWindow”, “500ms 周期”)) self.mcheck100ms.setText(_translate(“MainWindow”, “100ms 周期”)) self.mcheck50ms.setText(_translate(“MainWindow”, “50ms 周期”)) self.mcheck20ms.setText(_translate(“MainWindow”, “20ms 周期”)) self.mcheck200ms.setText(_translate(“MainWindow”, “200ms 周期”)) self.mEventSigBox.setTitle(_translate(“MainWindow”, “事件信号策略”)) self.radioLeftREvent.setText(_translate(“MainWindow”, “左右转 事件”)) self.radioKiilEvent.setText(_translate(“MainWindow”, “刹车 事件”)) self.radioPEvent.setText(_translate(“MainWindow”, “档位 事件”)) self.radioOpenCloseEvent.setText(_translate(“MainWindow”, “开关门 事件”)) self.mReadOBDinfBox.setTitle(_translate(“MainWindow”, “主动读取信息”)) self.radioVinRead.setText(_translate(“MainWindow”, “VIN 信息”)) def OpenSerial(self): if self.LSerial != None: if self.LSerial.SerialIsOpen(): self.LSerial.del() port_list = list(serial.tools.list_ports.comports()) if port_list.len() != 0: serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial.init(serialport,serialbaudrate) # 开启线程 self.thread = Worker() # 创建线程对象 self.thread.update_signal.connect(self.CanOBDdatarefresh) # 连接信号和槽 self.thread.update_signal.connect(self.LSerial.Com_read_frame) # 连接信号和槽 self.thread.start() # 启动线程 #self.LSerial.Com_read_frame() def CloseSerial(self): if self.LSerial.SerialIsOpen(): self.LSerial.close() def Serialconnectslot(self): self.mOpenSerial.accepted.connect(self.OpenSerial) self.mOpenSerial.rejected.connect(self.CloseSerial) def get_checked_cycles(self): “”“返回用户勾选的所有周期值（毫秒）”“” checked_cycles = [] if self.mcheck20ms.isChecked(): checked_cycles.append(10) if self.mcheck50ms.isChecked(): checked_cycles.append(50) if self.mcheck100ms.isChecked(): checked_cycles.append(100) if self.mcheck200ms.isChecked(): checked_cycles.append(200) if self.mcheck500ms.isChecked(): checked_cycles.append(500) if self.mcheck1000ms.isChecked(): checked_cycles.append(1000) return checked_cycles def CanOBDdatarefresh(self): # 检查数据接收是否超时（1秒阈值） current_time = time.time() if current_time - self.LSerial.last_data_time > 1.0: # 清空缓冲区并跳过刷新 global frame_buffer frame_buffer = bytearray() return filtered_cycles = self.get_checked_cycles() # 清空表格旧数据（保留表头） for row in range(self.tableWidget.rowCount()): for col in range(self.tableWidget.columnCount()): item = self.tableWidget.item(row, col) if item: item.setText(“”) row_index = 0 for indexitem in CanOBDItemList: can_id = indexitem[1] # 周期过滤逻辑 if can_id in self.LSerial.cycle_dict: cycle = self.LSerial.cycle_dict[can_id] # 检查是否在过滤周期范围内（±10%容差） skip = False for filtered_cycle in filtered_cycles: tolerance = filtered_cycle * 0.1 # 10%容差 if abs(cycle - filtered_cycle) <= tolerance: skip = True break if skip: continue # 跳过这个帧 # 显示数据 self.tableWidget.setItem(row_index, 0, QtWidgets.QTableWidgetItem(str(indexitem[0]))) self.tableWidget.setItem(row_index, 1, QtWidgets.QTableWidgetItem(str(indexitem[1]))) self.tableWidget.setItem(row_index, 2, QtWidgets.QTableWidgetItem(str(indexitem[2]))) self.tableWidget.setItem(row_index, 3, QtWidgets.QTableWidgetItem(str(indexitem[3]))) self.tableWidget.setItem(row_index, 4, QtWidgets.QTableWidgetItem(str(indexitem[4]))) row_index += 1 self.tableWidget.show() class Worker(QThread): update_signal = pyqtSignal(int) # 定义一个信号，用于传递更新信息到主线程 def run(self): 模拟耗时操作 while True: time.sleep(0.01) self.update_signal.emit(1) # 发射信号，传递更新信息 serialpro文件： import serial import time import struct from datetime import datetime CanOBDItemList = [[0,0,0,0,0]] Frame_start = b’\xFF’ Frame_end = b’\x55’ Frame_data_style_len = 6 Frame_Data_Len = 0 frame_buffer = bytearray() class CanInfShow_Item: def int(self,CanID,CanFramType,Len,CanDataInf): self.SystemCycle = datetime.strftime(“%Y-%m-%d %H:%M:%S.%f”)[:-3], self.CanID = CanID, self.CanFrame = CanFramType, self.CanDataLen = Len, self.CanData = CanDataInf class SerialPort: def init(self, port, baudrate): 初始化串口参数 self.port = port self.baudrate = baudrate self.ser = serial.Serial( port=self.port, baudrate=self.baudrate, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE ) 等待串口连接稳定 self.last_data_time = time.time() # 新增：最后接收数据的时间戳 self.cycle_dict = {} # 存储{帧ID: [上次时间戳, 当前周期]} self.last_frame_time = {} # 存储每个ID的最后出现时间 time.sleep(0.2) if not self.ser.isOpen(): print(“串口打开失败！”) def close(self): # 关闭串口连接 if self.ser.isOpen(): self.ser.close() def send(self, data): # 发送数据 if self.ser.isOpen(): try: self.ser.write(data.encode(‘utf-8’)) except serial.SerialException as e: print(f"发送数据失败: {e}“) def recv(self): # 接收数据 if self.ser.isOpen(): data = self.ser.read(self.ser.inWaiting()) if data: # 有数据时更新时间戳 self.last_data_time = time.time() return data def del(self): self.close() def SerialIsOpen(self): if self.ser.isOpen(): return 1 else: return 0 def Frame_check_sum(self,data,len): checksum = b’0’ dataval = data[:len] checksum = sum(dataval) checksum %= 0x100 return checksum # 发送数据并接收响应 def Com_read_frame(self): global frame_buffer global Frame_Data_Len byte = self.recv() if not byte: # 无新数据直接返回 return if byte: frame_buffer.extend(byte) if len(frame_buffer) > Frame_data_style_len: if Frame_start in frame_buffer and Frame_end in frame_buffer: Frame_start_index = frame_buffer.find(Frame_start) Frame_end_index = frame_buffer.find(Frame_end) if Frame_start_index + 1 == Frame_end_index: Frame_Data_Len = int(frame_buffer[Frame_start_index + 3] * 0x100) + int(frame_buffer[Frame_start_index + 2]) frame_buffer = frame_buffer[Frame_start_index: Frame_start_index + len(frame_buffer)] Frame_start_index = 0 elif Frame_end_index < Frame_start_index: frame_buffer = frame_buffer[Frame_start_index: Frame_start_index + len(frame_buffer)] Frame_start_index = 0 if len(frame_buffer) >= Frame_Data_Len + 5: checksum = self.Frame_check_sum(frame_buffer[Frame_start_index + 2:Frame_start_index + 2 + Frame_Data_Len + 2],Frame_Data_Len + 4) if checksum == frame_buffer[Frame_start_index + Frame_Data_Len + 4]: frame_procee = frame_buffer[Frame_start_index:Frame_start_index + Frame_Data_Len + 5] #处理帧数据信息 self.Frame_analoy_process(frame_procee) if (len(frame_buffer) == Frame_start_index + Frame_Data_Len + 5): frame_buffer.clear() else: frame_buffer = frame_buffer[Frame_start_index + Frame_Data_Len + 6:len(frame_buffer) - 1] Frame_Data_Len = 0 else: frame_buffer = frame_buffer[Frame_start_index + Frame_Data_Len + 6:] # 移除已处理的数据，为下一帧做准备 Frame_Data_Len = 0 #报文解析 def Frame_analoy_process(self, Framedata): # 检查帧类型 (0x0C 0x98) if len(Framedata) < 8 or Framedata[4] != 0x0C or Framedata[5] != 0x98: return try: FrameNum = int(Framedata[7]) except IndexError: return # 检查是否有足够数据 if len(Framedata) < 12 * FrameNum + 8: return current_time = time.time() # 获取当前精确时间戳 for index in range(FrameNum): # 时间戳 Cantime = datetime.now().strftime(”%Y-%m-%d %H:%M:%S.%f")[:-3] # 提取ID字节 try: id_bytes = [ Framedata[12 * index + 11], # LSB Framedata[12 * index + 10], Framedata[12 * index + 9], Framedata[12 * index + 8] # MSB ] except IndexError: continue # 格式化为8位大写十六进制 CanID = ‘’.join(format(b, ‘02X’) for b in id_bytes) CanFramType = “Cycle” Len = 8 # 提取数据部分 try: CanDataSpace = ’ '.join( format(Framedata[12 * index + 12 + posindex], ‘02X’) for posindex in range(8) ) except IndexError: continue CanItemData = [Cantime, CanID, CanFramType, Len, CanDataSpace] if CanID in self.last_frame_time: last_time = self.last_frame_time[CanID] cycle = (current_time - last_time) * 1000 # 转换为毫秒 # 平滑处理：使用加权平均减少抖动 if CanID in self.cycle_dict: old_cycle = self.cycle_dict[CanID] self.cycle_dict[CanID] = 0.7 * old_cycle + 0.3 * cycle else: self.cycle_dict[CanID] = cycle else: self.cycle_dict[CanID] = 0 # 首次出现，周期设为0 self.last_frame_time[CanID] = current_time # 更新列表 if not CanOBDItemList or CanOBDItemList[0][0] == 0: if CanOBDItemList and CanOBDItemList[0][0] == 0: CanOBDItemList.pop(0) CanOBDItemList.insert(0, CanItemData) else: Listpos = self.find_in_2d_list(CanOBDItemList, CanID) if Listpos is not None: CanOBDItemList[Listpos[0]] = CanItemData else: CanOBDItemList.append(CanItemData) self.last_data_time = time.time() # 解析到有效帧时更新时间 def find_in_2d_list(self,matrix, target): for i, row in enumerate(matrix): if any(x == target for x in row): return (i, row.index(target)) # 使用row.index()找到具体列的索引 return None
07-12
考虑到时间，我们可以简化处理：在`Frame_analoy_process`中，我们只记录需要更新的ID和新增的ID，然后在`CanOBDdatarefresh`中，我们取出这两个集合后立即清空，这样即使串口线程同时也在添加，我们只处理本次刷新...
import serial import time import struct import threading from datetime import datetime CanOBDItemList = [[0,0,0,0,0]] Frame_start = b’\xFF’ Frame_end = b’\x55’ Frame_data_style_len = 6 Frame_Data_Len = 0 frame_buffer = bytearray() class CanInfShow_Item: def int(self,CanID,CanFramType,Len,CanDataInf): self.SystemCycle = datetime.strftime(“%Y-%m-%d %H:%M:%S.%f”)[:-3], self.CanID = CanID, self.CanFrame = CanFramType, self.CanDataLen = Len, self.CanData = CanDataInf class SerialPort: def init(self, port, baudrate): 初始化串口参数 self.port = port self.baudrate = baudrate self.ser = serial.Serial( port=self.port, baudrate=self.baudrate, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE ) 等待串口连接稳定 self.last_data_time = time.time() # 新增：最后接收数据的时间戳 self.cycle_dict = {} # 存储{帧ID: [上次时间戳, 当前周期]} self.last_frame_time = {} # 存储每个ID的最后出现时间 self.data_updated_ids = set() # 存储数据变化的CAN ID self.new_added_ids = set() # 存储新增的CAN ID time.sleep(0.2) if not self.ser.isOpen(): print(“串口打开失败！”) def close(self): # 关闭串口连接 if self.ser.isOpen(): self.ser.close() def send(self, data): # 发送数据 if self.ser.isOpen(): try: self.ser.write(data.encode(‘utf-8’)) except serial.SerialException as e: print(f"发送数据失败: {e}“) def recv(self): # 接收数据 if self.ser.isOpen(): data = self.ser.read(self.ser.inWaiting()) if data: # 有数据时更新时间戳 self.last_data_time = time.time() return data def del(self): self.close() def SerialIsOpen(self): if self.ser.isOpen(): return 1 else: return 0 def Frame_check_sum(self,data,len): checksum = b’0’ dataval = data[:len] checksum = sum(dataval) checksum %= 0x100 return checksum # 发送数据并接收响应 def Com_read_frame(self): global frame_buffer global Frame_Data_Len byte = self.recv() if not byte: # 无新数据直接返回 return if byte: frame_buffer.extend(byte) if len(frame_buffer) > Frame_data_style_len: if Frame_start in frame_buffer and Frame_end in frame_buffer: Frame_start_index = frame_buffer.find(Frame_start) Frame_end_index = frame_buffer.find(Frame_end) if Frame_start_index + 1 == Frame_end_index: Frame_Data_Len = int(frame_buffer[Frame_start_index + 3] * 0x100) + int(frame_buffer[Frame_start_index + 2]) frame_buffer = frame_buffer[Frame_start_index: Frame_start_index + len(frame_buffer)] Frame_start_index = 0 elif Frame_end_index < Frame_start_index: frame_buffer = frame_buffer[Frame_start_index: Frame_start_index + len(frame_buffer)] Frame_start_index = 0 if len(frame_buffer) >= Frame_Data_Len + 5: checksum = self.Frame_check_sum(frame_buffer[Frame_start_index + 2:Frame_start_index + 2 + Frame_Data_Len + 2],Frame_Data_Len + 4) if checksum == frame_buffer[Frame_start_index + Frame_Data_Len + 4]: frame_procee = frame_buffer[Frame_start_index:Frame_start_index + Frame_Data_Len + 5] #处理帧数据信息 self.Frame_analoy_process(frame_procee) if (len(frame_buffer) == Frame_start_index + Frame_Data_Len + 5): frame_buffer.clear() else: frame_buffer = frame_buffer[Frame_start_index + Frame_Data_Len + 6:len(frame_buffer) - 1] Frame_Data_Len = 0 else: frame_buffer = frame_buffer[Frame_start_index + Frame_Data_Len + 6:] # 移除已处理的数据，为下一帧做准备 Frame_Data_Len = 0 #报文解析 def Frame_analoy_process(self, Framedata): # 检查帧类型 (0x0C 0x98) if len(Framedata) < 8 or Framedata[4] != 0x0C or Framedata[5] != 0x98: return try: FrameNum = int(Framedata[7]) except IndexError: return # 检查是否有足够数据 if len(Framedata) < 12 * FrameNum + 8: return current_time = time.time() # 获取当前精确时间戳 for index in range(FrameNum): # 时间戳 Cantime = datetime.now().strftime(”%Y-%m-%d %H:%M:%S.%f")[:-3] # 提取ID字节 try: id_bytes = [ Framedata[12 * index + 11], # LSB Framedata[12 * index + 10], Framedata[12 * index + 9], Framedata[12 * index + 8] # MSB ] except IndexError: continue # 格式化为8位大写十六进制 CanID = ‘’.join(format(b, ‘02X’) for b in id_bytes) CanFramType = “Cycle” Len = 8 # 提取数据部分 try: CanDataSpace = ’ '.join( format(Framedata[12 * index + 12 + posindex], ‘02X’) for posindex in range(8) ) except IndexError: continue CanItemData = [Cantime, CanID, CanFramType, Len, CanDataSpace] if CanID in self.last_frame_time: last_time = self.last_frame_time[CanID] cycle = (current_time - last_time) * 1000 # 转换为毫秒 # 平滑处理：使用加权平均减少抖动 if CanID in self.cycle_dict: old_cycle = self.cycle_dict[CanID] self.cycle_dict[CanID] = 0.7 * old_cycle + 0.3 * cycle else: self.cycle_dict[CanID] = cycle else: self.cycle_dict[CanID] = 0 # 首次出现，周期设为0 self.last_frame_time[CanID] = current_time # 更新列表 if not CanOBDItemList or CanOBDItemList[0][0] == 0: if CanOBDItemList and CanOBDItemList[0][0] == 0: CanOBDItemList.pop(0) CanOBDItemList.insert(0, CanItemData) self.new_added_ids.add(CanID) # 新增标志 else: Listpos = self.find_in_2d_list(CanOBDItemList, CanID) if Listpos is not None: CanOBDItemList[Listpos[0]] = CanItemData self.data_updated_ids.add(CanID) # 更新标志 else: CanOBDItemList.append(CanItemData) self.new_added_ids.add(CanID) # 新增标志 self.last_data_time = time.time() # 解析到有效帧时更新时间 def find_in_2d_list(self,matrix, target): for i, row in enumerate(matrix): if any(x == target for x in row): return (i, row.index(target)) # 使用row.index()找到具体列的索引 return None 这是serialpro文件 import sys sys.path.append(‘/UI/Login’) from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtWidgets import QApplication, QWidget #from PyQt5.QtCore import QThread, pyqtSignal,QTimer from Login import Ui_Form as Login_ui from CanOBD import Ui_MainWindow as CanOBD_ui from PyQt5.QtWidgets import QMessageBox import time #import threading class LogInViewUI(QtWidgets.QWidget,Login_ui): def int(self): super(LogInViewUI,self).int() self.setupUi(self) def connectslot(self): #self.m_loginbuttonOn.clicked.connect(self.login_button) self.mloginButton.clicked.connect(self.login_button) def login_button(self): if self.mPassWordEdit.acceptRichText() == “”: QMessageBox.warning(self, ‘警告’, ‘密码不能为空，请输入！’) return None # 1打开新窗口 CanOBDWidget.show() # 2关闭本窗口 LoginWidget.close() class CanOBDViewUI(QtWidgets.QWidget,CanOBD_ui): def int(self): super(CanOBDViewUI,self).int() self.setupUi(self) if name == “main”: app = QtWidgets.QApplication(sys.argv) #MainWidget = QtWidgets.QDockWidget() LoginWidget = QtWidgets.QWidget() CanOBDWidget = QtWidgets.QMainWindow() loginui = LogInViewUI() CanOBDui = CanOBDViewUI() loginui.setupUi(LoginWidget) loginui.connectslot() CanOBDui.setupUi(CanOBDWidget) CanOBDui.Serialconnectslot() LoginWidget.show() sys.exit(app.exec_()) 这是main文件 – coding: utf-8 – import threading Form implementation generated from reading ui file ‘CanOBD.ui’ Created by: PyQt5 UI code generator 5.15.9 WARNING: Any manual changes made to this file will be lost when pyuic5 is run again. Do not edit this file unless you know what you are doing. from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import QThread, pyqtSignal,QTimer from PyQt5.QtWidgets import QApplication, QTableWidget, QTableWidgetItem from SerialPro import SerialPort as SerialThread from SerialPro import CanOBDItemList import time import serial import serial.tools.list_ports class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(“MainWindow”) MainWindow.resize(1220, 940) font = QtGui.QFont() font.setPointSize(12) MainWindow.setFont(font) self.last_filtered_cycles = [] # 初始化属性 self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName(“centralwidget”) self.tabWidget = QtWidgets.QTabWidget(self.centralwidget) self.tabWidget.setGeometry(QtCore.QRect(0, 0, 1041, 940)) self.tabWidget.setObjectName(“tabWidget”) self.tab = QtWidgets.QWidget() self.tab.setObjectName(“tab”) self.tableWidget = QtWidgets.QTableWidget(self.tab) self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1031, 940)) self.tableWidget.setObjectName(“tableWidget”) self.tableWidget.setColumnCount(5) self.tableWidget.setRowCount(150) for num in range(0,150,1): item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(num, item) item = QtWidgets.QTableWidgetItem() font = QtGui.QFont() font.setKerning(False) item.setFont(font) for line in range(0,5,1): self.tableWidget.setHorizontalHeaderItem(line, item) item = QtWidgets.QTableWidgetItem() self.tabWidget.addTab(self.tab, “”) self.tab_2 = QtWidgets.QWidget() self.tab_2.setObjectName(“CanOBD Cfg Set”) self.tabWidget.addTab(self.tab_2, “”) self.mComCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mComCfgBox.setGeometry(QtCore.QRect(1040, 10, 191, 231)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mComCfgBox.setFont(font) self.mComCfgBox.setObjectName(“mComCfgBox”) self.mPortName = QtWidgets.QLabel(self.mComCfgBox) self.mPortName.setGeometry(QtCore.QRect(20, 30, 61, 21)) self.mPortName.setObjectName(“mPortName”) self.mBpsName = QtWidgets.QLabel(self.mComCfgBox) self.mBpsName.setGeometry(QtCore.QRect(20, 60, 61, 21)) self.mBpsName.setObjectName(“mBpsName”) self.mDatabitName = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitName.setGeometry(QtCore.QRect(20, 90, 61, 21)) self.mDatabitName.setObjectName(“mDatabitName”) self.mStopName = QtWidgets.QLabel(self.mComCfgBox) self.mStopName.setGeometry(QtCore.QRect(20, 120, 61, 21)) self.mStopName.setObjectName(“mStopName”) self.mOddName = QtWidgets.QLabel(self.mComCfgBox) self.mOddName.setGeometry(QtCore.QRect(20, 150, 61, 21)) self.mOddName.setObjectName(“mOddName”) self.mDatabitVal = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitVal.setGeometry(QtCore.QRect(100, 90, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mDatabitVal.setFont(font) self.mDatabitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mDatabitVal.setAlignment(QtCore.Qt.AlignCenter) self.mDatabitVal.setObjectName(“mDatabitVal”) self.mStopBitVal = QtWidgets.QLabel(self.mComCfgBox) self.mStopBitVal.setGeometry(QtCore.QRect(100, 120, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mStopBitVal.setFont(font) self.mStopBitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mStopBitVal.setAlignment(QtCore.Qt.AlignCenter) self.mStopBitVal.setObjectName(“mStopBitVal”) self.mOddVal = QtWidgets.QLabel(self.mComCfgBox) self.mOddVal.setGeometry(QtCore.QRect(100, 150, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mOddVal.setFont(font) self.mOddVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mOddVal.setAlignment(QtCore.Qt.AlignCenter) self.mOddVal.setObjectName(“mOddVal”) self.mPortVal = QtWidgets.QComboBox(self.mComCfgBox) self.mPortVal.setGeometry(QtCore.QRect(90, 30, 81, 22)) self.mPortVal.setObjectName(“mPortVal”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mBPSVal = QtWidgets.QComboBox(self.mComCfgBox) self.mBPSVal.setGeometry(QtCore.QRect(90, 60, 81, 22)) self.mBPSVal.setObjectName(“mBPSVal”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mOpenSerial = QtWidgets.QDialogButtonBox(self.mComCfgBox) self.mOpenSerial.setGeometry(QtCore.QRect(20, 190, 156, 31)) self.mOpenSerial.setStandardButtons(QtWidgets.QDialogButtonBox.Close|QtWidgets.QDialogButtonBox.Open) self.mOpenSerial.setObjectName(“mOpenSerial”) self.mCycleCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mCycleCfgBox.setGeometry(QtCore.QRect(1040, 260, 191, 221)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mCycleCfgBox.setFont(font) self.mCycleCfgBox.setObjectName(“mCycleCfgBox”) self.mcheck1000ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck1000ms.setGeometry(QtCore.QRect(20, 180, 141, 31)) self.mcheck1000ms.setObjectName(“mcheck1000ms”) self.mcheck500ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck500ms.setGeometry(QtCore.QRect(20, 150, 141, 31)) self.mcheck500ms.setObjectName(“mcheck500ms”) self.mcheck100ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck100ms.setGeometry(QtCore.QRect(20, 90, 141, 31)) self.mcheck100ms.setObjectName(“mcheck100ms”) self.mcheck50ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck50ms.setGeometry(QtCore.QRect(20, 60, 141, 31)) self.mcheck50ms.setObjectName(“mcheck50ms”) self.mcheck20ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck20ms.setGeometry(QtCore.QRect(20, 30, 141, 31)) self.mcheck20ms.setObjectName(“mcheck20ms”) self.mcheck200ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck200ms.setGeometry(QtCore.QRect(20, 120, 141, 31)) self.mcheck200ms.setObjectName(“mcheck200ms”) self.mEventSigBox = QtWidgets.QGroupBox(self.centralwidget) self.mEventSigBox.setGeometry(QtCore.QRect(1050, 490, 191, 151)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mEventSigBox.setFont(font) self.mEventSigBox.setObjectName(“mEventSigBox”) self.radioLeftREvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioLeftREvent.setGeometry(QtCore.QRect(10, 30, 151, 16)) self.radioLeftREvent.setObjectName(“radioLeftREvent”) self.radioKiilEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioKiilEvent.setGeometry(QtCore.QRect(10, 90, 151, 16)) self.radioKiilEvent.setObjectName(“radioKiilEvent”) self.radioPEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioPEvent.setGeometry(QtCore.QRect(10, 120, 151, 16)) self.radioPEvent.setObjectName(“radioPEvent”) self.radioOpenCloseEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioOpenCloseEvent.setGeometry(QtCore.QRect(10, 60, 151, 16)) self.radioOpenCloseEvent.setObjectName(“radioOpenCloseEvent”) self.mReadOBDinfBox = QtWidgets.QGroupBox(self.centralwidget) self.mReadOBDinfBox.setGeometry(QtCore.QRect(1050, 660, 191, 171)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mReadOBDinfBox.setFont(font) self.mReadOBDinfBox.setObjectName(“mReadOBDinfBox”) self.radioVinRead = QtWidgets.QRadioButton(self.mReadOBDinfBox) self.radioVinRead.setGeometry(QtCore.QRect(10, 40, 141, 21)) self.radioVinRead.setObjectName(“radioVinRead”) self.mVinInfShow = QtWidgets.QTextBrowser(self.mReadOBDinfBox) self.mVinInfShow.setGeometry(QtCore.QRect(10, 70, 171, 91)) self.mVinInfShow.setObjectName(“mVinInfShow”) MainWindow.setCentralWidget(self.centralwidget) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName(“statusbar”) MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) self.tabWidget.setCurrentIndex(0) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate(“MainWindow”, “MainWindow”)) for num in range(0, 150, 1): item = self.tableWidget.verticalHeaderItem(num) item.setText(_translate(“MainWindow”, str(num +1))) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate(“MainWindow”, “时间标识”)) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate(“MainWindow”, “帧ID”)) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate(“MainWindow”, “帧类型”)) item = self.tableWidget.horizontalHeaderItem(3) item.setText(_translate(“MainWindow”, “长度”)) item = self.tableWidget.horizontalHeaderItem(4) item.setText(_translate(“MainWindow”, “数据 (BIT7–BIT0 大端模式)”)) self.tableWidget.setColumnWidth(0, 200) self.tableWidget.setColumnWidth(1, 150) self.tableWidget.setColumnWidth(4,450) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate(“MainWindow”, “CanOBD Inf Show”)) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate(“MainWindow”, “CanOBD Cfg Set”)) self.mComCfgBox.setTitle(_translate(“MainWindow”, “串口配置”)) self.mPortName.setText(_translate(“MainWindow”, “端口号”)) self.mBpsName.setText(_translate(“MainWindow”, “波特率”)) self.mDatabitName.setText(_translate(“MainWindow”, “数据位”)) self.mStopName.setText(_translate(“MainWindow”, “停止位”)) self.mOddName.setText(_translate(“MainWindow”, “检验位”)) self.mDatabitVal.setText(_translate(“MainWindow”, “8”)) self.mStopBitVal.setText(_translate(“MainWindow”, “1”)) self.mOddVal.setText(_translate(“MainWindow”, “无”)) self.mBPSVal.setItemText(0, _translate(“MainWindow”, “9600”)) self.mBPSVal.setItemText(1, _translate(“MainWindow”, “19200”)) self.mBPSVal.setItemText(2, _translate(“MainWindow”, “115200”)) self.mBPSVal.setItemText(3, _translate(“MainWindow”, “230400”)) self.mBPSVal.setItemText(4, _translate(“MainWindow”, “256000”)) self.mBPSVal.setItemText(5, _translate(“MainWindow”, “460800”)) port_list = list(serial.tools.list_ports.comports()) if port_list.len() is not 0: for num in range(port_list.len()): self.mPortVal.setItemText(num, _translate(“MainWindow”, str(port_list[num].device))) serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial = SerialThread(serialport, serialbaudrate) self.mCycleCfgBox.setTitle(_translate(“MainWindow”, “过滤设置（周期）”)) self.mcheck1000ms.setText(_translate(“MainWindow”, “1000ms 周期”)) self.mcheck500ms.setText(_translate(“MainWindow”, “500ms 周期”)) self.mcheck100ms.setText(_translate(“MainWindow”, “100ms 周期”)) self.mcheck50ms.setText(_translate(“MainWindow”, “50ms 周期”)) self.mcheck20ms.setText(_translate(“MainWindow”, “20ms 周期”)) self.mcheck200ms.setText(_translate(“MainWindow”, “200ms 周期”)) self.mEventSigBox.setTitle(_translate(“MainWindow”, “事件信号策略”)) self.radioLeftREvent.setText(_translate(“MainWindow”, “左右转 事件”)) self.radioKiilEvent.setText(_translate(“MainWindow”, “刹车 事件”)) self.radioPEvent.setText(_translate(“MainWindow”, “档位 事件”)) self.radioOpenCloseEvent.setText(_translate(“MainWindow”, “开关门 事件”)) self.mReadOBDinfBox.setTitle(_translate(“MainWindow”, “主动读取信息”)) self.radioVinRead.setText(_translate(“MainWindow”, “VIN 信息”)) def OpenSerial(self): if self.LSerial != None: if self.LSerial.SerialIsOpen(): self.LSerial.del() port_list = list(serial.tools.list_ports.comports()) if port_list.len() != 0: serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial.init(serialport,serialbaudrate) # 开启线程 self.thread = Worker() # 创建线程对象 self.thread.update_signal.connect(self.CanOBDdatarefresh) # 连接信号和槽 self.thread.update_signal.connect(self.LSerial.Com_read_frame) # 连接信号和槽 self.thread.start() # 启动线程 #self.LSerial.Com_read_frame() def CloseSerial(self): if self.LSerial.SerialIsOpen(): self.LSerial.close() def Serialconnectslot(self): self.mOpenSerial.accepted.connect(self.OpenSerial) self.mOpenSerial.rejected.connect(self.CloseSerial) def get_checked_cycles(self): “”“返回用户勾选的所有周期值（毫秒）”“” checked_cycles = [] if self.mcheck20ms.isChecked(): checked_cycles.append(10) if self.mcheck50ms.isChecked(): checked_cycles.append(50) if self.mcheck100ms.isChecked(): checked_cycles.append(100) if self.mcheck200ms.isChecked(): checked_cycles.append(200) if self.mcheck500ms.isChecked(): checked_cycles.append(500) if self.mcheck1000ms.isChecked(): checked_cycles.append(1000) return checked_cycles def CanOBDdatarefresh(self): # 检查数据接收是否超时（1秒阈值） current_time = time.time() if current_time - self.LSerial.last_data_time > 1.0: # 清空缓冲区并跳过刷新 global frame_buffer frame_buffer = bytearray() return filtered_cycles = self.get_checked_cycles() all_update_ids = self.LSerial.data_updated_ids | self.LSerial.new_added_ids for can_id in all_update_ids: # 查找该ID在列表中的位置 row_index = None for idx, item in enumerate(CanOBDItemList): if item[1] == can_id: row_index = idx break if row_index is None or row_index >= self.tableWidget.rowCount(): continue # 周期过滤检查 if can_id in self.LSerial.cycle_dict: cycle = self.LSerial.cycle_dict[can_id] skip = False for filtered_cycle in filtered_cycles: tolerance = filtered_cycle * 0.1 if abs(cycle - filtered_cycle) <= tolerance: skip = True break if skip: continue # 更新表格行 item_data = CanOBDItemList[row_index] self.tableWidget.setItem(row_index, 0, QtWidgets.QTableWidgetItem(str(item_data[0]))) self.tableWidget.setItem(row_index, 1, QtWidgets.QTableWidgetItem(str(item_data[1]))) self.tableWidget.setItem(row_index, 2, QtWidgets.QTableWidgetItem(str(item_data[2]))) self.tableWidget.setItem(row_index, 3, QtWidgets.QTableWidgetItem(str(item_data[3]))) self.tableWidget.setItem(row_index, 4, QtWidgets.QTableWidgetItem(str(item_data[4]))) # 清空标志位 self.LSerial.data_updated_ids.clear() self.LSerial.new_added_ids.clear() self.tableWidget.show() class Worker(QThread): update_signal = pyqtSignal(int) # 定义一个信号，用于传递更新信息到主线程 def run(self): 模拟耗时操作 while True: time.sleep(0.01) self.update_signal.emit(1) # 发射信号，传递更新信息 这是canobd文件 现在这个程序存在一些问题，就是在接收can数据的时候，列表更新的速度跟不上发送can数据的速度，我的can设备会发送很多种帧ID的信号，里面的数据也不同，大概1s发送1200条。比如在接收信号的时候，第5sCANID1发送A数据，第15s，CANID1发送了B数据，但是当15s停止发送的时候，界面显示还停留在A数据。程序中已经采用了界面刷新优化的策略，但是效果不明显，你认为它有用吗？如果该策略是正确的，我认为还存在数据处理速度的问题，有没有办法优化程序读取can数据的速度？还有，如果有修改代码的地方，位置一定要标注清楚！！！！要不然我可能不理解你的意思
07-12
- 在刷新时，我们遍历所有更新和新增的ID（all_update_ids），然后通过字典CanOBDItemDict快速获取数据，并更新到表格的对应行。 - 同时，我们需要知道该ID在表格中的行号。由于我们维护了顺序列表CanOBDItemOrder...
import sys sys.path.append(‘/UI/Login’) from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtWidgets import QApplication, QWidget #from PyQt5.QtCore import QThread, pyqtSignal,QTimer from Login import Ui_Form as Login_ui from CanOBD import Ui_MainWindow as CanOBD_ui from PyQt5.QtWidgets import QMessageBox import time #import threading class LogInViewUI(QtWidgets.QWidget,Login_ui): def int(self): super(LogInViewUI,self).int() self.setupUi(self) def connectslot(self): #self.m_loginbuttonOn.clicked.connect(self.login_button) self.mloginButton.clicked.connect(self.login_button) def login_button(self): if self.mPassWordEdit.acceptRichText() == “”: QMessageBox.warning(self, ‘警告’, ‘密码不能为空，请输入！’) return None # 1打开新窗口 CanOBDWidget.show() # 2关闭本窗口 LoginWidget.close() class CanOBDViewUI(QtWidgets.QWidget,CanOBD_ui): def int(self): super(CanOBDViewUI,self).int() self.setupUi(self) if name == “main”: app = QtWidgets.QApplication(sys.argv) #MainWidget = QtWidgets.QDockWidget() LoginWidget = QtWidgets.QWidget() CanOBDWidget = QtWidgets.QMainWindow() loginui = LogInViewUI() CanOBDui = CanOBDViewUI() loginui.setupUi(LoginWidget) loginui.connectslot() CanOBDui.setupUi(CanOBDWidget) CanOBDui.Serialconnectslot() LoginWidget.show() sys.exit(app.exec_()) 这是main文件 import serial import time import struct import queue import threading from datetime import datetime CanOBDItemList = [[0,0,0,0,0]] CanPGNItemList = [[0,0,0,0]] Frame_start = b’\xFF’ Frame_end = b’\x55’ Frame_data_style_len = 6 Frame_Data_Len = 0 frame_buffer = bytearray() class CanInfShow_Item: def int(self,CanID,CanFramType,Len,CanDataInf): self.SystemCycle = datetime.strftime(“%Y-%m-%d %H:%M:%S.%f”)[:-3], self.CanID = CanID, self.CanFrame = CanFramType, self.CanDataLen = Len, self.CanData = CanDataInf class CanPGNShow_Item: def int(self, PGNID, CanID, CanData, Signal): self.PGNID = PGNID, self.CanID = CanID, self.CanData = CanData, self.Signal = Signal class SerialPort: def init(self, port, baudrate): 初始化串口参数 self.port = port self.baudrate = baudrate self.ser = serial.Serial( port=self.port, baudrate=self.baudrate, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE ) 等待串口连接稳定 self.last_data_time = time.time() # 新增：最后接收数据的时间戳 self.cycle_dict = {} # 存储{帧ID: [上次时间戳, 当前周期]} self.last_frame_time = {} # 存储每个ID的最后出现时间 self.data_updated_ids = set() # 存储数据变化的CAN ID self.new_added_ids = set() # 存储新增的CAN ID self.state = 0 self.current_frame = bytearray() self.expected_length = 0 self.raw_data_queue = queue.Queue(maxsize=10000) self.data_lock = threading.Lock() self.worker_threads = [] self._init_state_handlers() time.sleep(0.2) if not self.ser.isOpen(): print(“串口打开失败！”) def close(self): # 关闭串口连接 if self.ser.isOpen(): self.ser.close() def send(self, data): # 发送数据 if self.ser.isOpen(): try: self.ser.write(data.encode(‘utf-8’)) except serial.SerialException as e: print(f"发送数据失败: {e}“) # def recv(self): # # 接收数据 # if self.ser.isOpen(): # data = self.ser.read(self.ser.inWaiting()) # if data: # 有数据时更新时间戳 # self.last_data_time = time.time() # return data def recv(self, chunk_size=4096): if self.ser.isOpen(): # 每次最多读取1024字节 data = self.ser.read(min(self.ser.inWaiting(), chunk_size)) if data: # self.last_data_time = time.time() return data return None def del(self): self.close() def SerialIsOpen(self): if self.ser.isOpen(): return 1 else: return 0 def start_reading(self): self.recv_thread = threading.Thread(target=self._recv_worker, daemon=True) self.parse_thread = threading.Thread(target=self._parse_worker, daemon=True) self.recv_thread.start() self.parse_thread.start() self.worker_threads = [self.recv_thread, self.parse_thread] def _recv_worker(self): while self.ser.isOpen(): data = self.recv(chunk_size=4096) # 每次最多读4KB if data: self.raw_data_queue.put(data) else: time.sleep(0.001) def _init_state_handlers(self): self.state_handlers = { 0: self._state0_wait_ff, 1: self._state1_wait_55, 2: self._state2_length_high, 3: self._state3_length_low, 4: self._state4_type_field, 5: self._state5_reserved_field, 6: self._state6_can_channel, 7: self._state7_message_count, 8: self._state8_receive_data, 9: self._state9_checksum, 10: self._state10_verify } def _parse_worker(self): “”“优化后的状态机处理””" while True: try: data = self.raw_data_queue.get(timeout=0.1) for byte in data: handler = self.state_handlers.get(self.state) if handler: handler(byte) else: self.reset_state() except queue.Empty: continue # — 各状态处理函数 — def _state0_wait_ff(self, byte): if byte == 0xFF: self.current_frame.append(byte) self.state = 1 def _state1_wait_55(self, byte): if byte == 0x55: self.current_frame.append(byte) self.state = 2 else: self.reset_state() def _state2_length_high(self, byte): self.current_frame.append(byte) self.state = 3 def _state3_length_low(self, byte): self.current_frame.append(byte) length_high = self.current_frame[2] length_low = byte self.expected_length = (length_high << 8) | length_low self.state = 4 def _state4_type_field(self, byte): self.current_frame.append(byte) self.state = 5 def _state5_reserved_field(self, byte): self.current_frame.append(byte) self.state = 6 def _state6_can_channel(self, byte): self.current_frame.append(byte) self.state = 7 def _state7_message_count(self, byte): self.current_frame.append(byte) self.num_messages = byte self.state = 8 self.messages_received = 0 # 重置计数器 def _state8_receive_data(self, byte): self.current_frame.append(byte) self.messages_received += 1 if self.messages_received >= self.num_messages * 12: self.state = 9 def _state9_checksum(self, byte): self.current_frame.append(byte) self.state = 10 def _state10_verify(self, _): if self.verify_checksum(): self.Frame_analoy_process(bytes(self.current_frame)) else: print(“校验失败，丢弃当前帧”) self.reset_state() def verify_checksum(self): “”" 验证校验和：从第2字节到倒数第二个字节之和 & 0xFF “”" data_to_check = self.current_frame[2:-1] # 从第2字节到最后一个校验位之前 checksum = sum(data_to_check) & 0xFF return checksum == self.current_frame[-1] def reset_state(self): “”" 重置状态机 “”" self.state = 0 self.current_frame = bytearray() self.expected_length = 0 self.messages_received = 0 #报文解析 def Frame_analoy_process(self, Framedata): # 检查帧类型 (0x0C 0x98) if len(Framedata) < 8 or Framedata[4] != 0x0C or Framedata[5] != 0x98: return try: FrameNum = int(Framedata[7]) except IndexError: return # 检查是否有足够数据 if len(Framedata) < 12 * FrameNum + 8: return current_time = time.time() # 获取当前精确时间戳 for index in range(0,FrameNum): # 时间戳 # Cantime = datetime.now().strftime(“%Y-%m-%d %H:%M:%S.%f”)[:-3] Cantime=0 try: id_bytes = [ Framedata[12 * index + 11], # LSB Framedata[12 * index + 10], Framedata[12 * index + 9], Framedata[12 * index + 8] # MSB ] except IndexError: continue # 格式化为8位大写十六进制 CanID = ‘’.join(format(b, ‘02X’) for b in id_bytes) # 提取ID字节 CanFramType = “Cycle” Len = 8 CanDataSpace = ‘’ PGNdata = ‘’ PGNID = int(Framedata[12 * index + 9] ) + int(Framedata[12 * index + 10]* 0x100) PGNSignl = self.Frame_analoy_PGN_Signal(PGNID,Framedata[12 * index + 12:]) # 提取数据部分 for posindex in range(0,8): PGNdata += str(hex(Framedata[12 * index + 12 + posindex])[2:]) try: CanDataSpace = ’ '.join( format(Framedata[12 * index + 12 + posindex], ‘02X’) for posindex in range(8) ) except IndexError: continue CanItemData = [Cantime, CanID, CanFramType, Len, CanDataSpace] print(CanDataSpace) if PGNSignl != None: SignalItemData = [hex(PGNID)[2:], CanID, PGNdata, PGNSignl] if all(not sublist for sublist in CanPGNItemList) or CanPGNItemList[0][0] == 0: if len(CanPGNItemList): CanPGNItemList.pop(0) CanPGNItemList.insert(0, SignalItemData) else: Listpos = self.find_in_2d_list(CanPGNItemList, CanID) if None != Listpos: CanPGNItemList[Listpos[0]] = SignalItemData else: CanPGNItemList.append(SignalItemData) if CanID in self.last_frame_time: last_time = self.last_frame_time[CanID] cycle = (current_time - last_time) * 1000 # 转换为毫秒 # 平滑处理：使用加权平均减少抖动 # if CanID in self.cycle_dict: # old_cycle = self.cycle_dict[CanID] # self.cycle_dict[CanID] = 0.7 * old_cycle + 0.3 * cycle # else: self.cycle_dict[CanID] = cycle else: self.cycle_dict[CanID] = 0 # 首次出现，周期设为0 self.last_frame_time[CanID] = current_time # 更新列表 if not CanOBDItemList or CanOBDItemList[0][0] == 0: if CanOBDItemList and CanOBDItemList[0][0] == 0: CanOBDItemList.pop(0) CanOBDItemList.insert(0, CanItemData) self.new_added_ids.add(CanID) # 新增标志 else: Listpos = self.find_in_2d_list(CanOBDItemList, CanID) if Listpos is not None: CanOBDItemList[Listpos[0]] = CanItemData self.data_updated_ids.add(CanID) # 更新标志 else: CanOBDItemList.append(CanItemData) self.new_added_ids.add(CanID) # 新增标志 self.last_data_time = time.time() # 解析到有效帧时更新时间 # print(self.cycle_dict[“18F0090B”]) # if “18F0090B” in self.cycle_dict: # print( self.cycle_dict[“18F0090B”]) def find_in_2d_list(self,matrix, target): for i, row in enumerate(matrix): if any(x == target for x in row): return (i, row.index(target)) # 使用row.index()找到具体列的索引 return None def Frame_analoy_PGN_Signal(self,PGNID, Framedata): #车速 SignalVal = 0 if PGNID == 0xFEF1: SignalVal = float(int(Framedata[2] * 0x100) + int(Framedata[3]) / 256.0) elif PGNID == 0xF004: SignalVal = str(int(Framedata[2] & 0x7F)) + ‘|’+ str(float(int(Framedata[4] * 0x100) + int(Framedata[3]) / 125.0)) elif PGNID == 0xFCE1: SignalVal = int(Framedata[3] * 0x1000000) + int(Framedata[2] * 0x10000) + int(Framedata[1] * 0x100) + int(Framedata[0]) elif PGNID == 0xFEE5: SignalVal = int(Framedata[3] * 0x1000000) + int(Framedata[2] * 0x10000) + int(Framedata[1] * 0x100) + int(Framedata[0]) elif PGNID == 0xFEE5: SignalVal = int(Framedata[3] * 0x1000000) + int(Framedata[2] * 0x10000) + int(Framedata[1] * 0x100) + int(Framedata[0]) elif PGNID == 0xFEEE: SignalVal = int(Framedata[0] - 40) elif PGNID == 0xFE56: SignalVal = float(Framedata[0] * 0.4) elif PGNID == 0xFEF2: SignalVal = float(int(Framedata[1] * 0x100 + Framedata[0] * 0.05)) elif PGNID == 0xF005: SignalVal = Framedata[3] return SignalVal # def start_reading(self): # self.read_thread = threading.Thread(target=self.Com_read_frame, daemon=True) # self.read_thread.start() 这是serialpro文件 – coding: utf-8 – import threading Form implementation generated from reading ui file ‘CanOBD.ui’ Created by: PyQt5 UI code generator 5.15.9 WARNING: Any manual changes made to this file will be lost when pyuic5 is run again. Do not edit this file unless you know what you are doing. from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import QThread, pyqtSignal,QTimer from PyQt5.QtWidgets import QApplication, QTableWidget, QTableWidgetItem,QTreeWidget, QTreeWidgetItem from SerialPro import SerialPort as SerialThread from SerialPro import CanOBDItemList,CanPGNItemList import time import serial import serial.tools.list_ports import binascii import struct class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName(“MainWindow”) MainWindow.resize(1220, 940) font = QtGui.QFont() font.setPointSize(12) MainWindow.setFont(font) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName(“centralwidget”) self.tabWidget = QtWidgets.QTabWidget(self.centralwidget) self.tabWidget.setGeometry(QtCore.QRect(0, 0, 1041, 940)) self.tabWidget.setObjectName(“tabWidget”) self.tab = QtWidgets.QWidget() self.tab.setObjectName(“tab”) self.tableWidget = QtWidgets.QTableWidget(self.tab) self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1031, 940)) self.tableWidget.setObjectName(“tableWidget”) self.tableWidget.setColumnCount(5) self.tableWidget.setRowCount(150) for num in range(0,150,1): item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(num, item) item = QtWidgets.QTableWidgetItem() font = QtGui.QFont() font.setKerning(False) item.setFont(font) for line in range(0,5,1): self.tableWidget.setHorizontalHeaderItem(line, item) item = QtWidgets.QTableWidgetItem() self.tabWidget.addTab(self.tab, “”) self.tab_2 = QtWidgets.QWidget() self.tab_2.setObjectName(“CanOBD Cfg Set”) self.mSpeedTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mSpeedTreeWidget.setGeometry(QtCore.QRect(10, 0, 1031, 101)) self.mSpeedTreeWidget.setObjectName(“mSpeedTreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mSpeedTreeWidget.headerItem().setFont(0, font) self.mSpeedTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mSpeedTreeWidget.headerItem().setFont(3, font) self.mRPMTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mRPMTreeWidget.setGeometry(QtCore.QRect(10, 100, 1031, 91)) self.mRPMTreeWidget.setObjectName(“mRPMTreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mRPMTreeWidget.headerItem().setFont(0, font) self.mRPMTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mRPMTreeWidget.headerItem().setFont(3, font) self.mVDHRTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mVDHRTreeWidget.setGeometry(QtCore.QRect(10, 190, 1031, 91)) self.mVDHRTreeWidget.setObjectName(“mVDHRTreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mVDHRTreeWidget.headerItem().setFont(0, font) self.mVDHRTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mVDHRTreeWidget.headerItem().setFont(3, font) self.mHoursTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mHoursTreeWidget.setGeometry(QtCore.QRect(10, 280, 1031, 101)) self.mHoursTreeWidget.setObjectName(“mHoursTreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mHoursTreeWidget.headerItem().setFont(0, font) self.mHoursTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mHoursTreeWidget.headerItem().setFont(3, font) self.mEECTreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mEECTreeWidget.setGeometry(QtCore.QRect(10, 380, 1031, 91)) self.mEECTreeWidget.setObjectName(“mEECTreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mEECTreeWidget.headerItem().setFont(0, font) self.mEECTreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mEECTreeWidget.headerItem().setFont(3, font) self.mET1TreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mET1TreeWidget.setGeometry(QtCore.QRect(10, 470, 1031, 101)) self.mET1TreeWidget.setObjectName(“mET1TreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mET1TreeWidget.headerItem().setFont(0, font) self.mET1TreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mET1TreeWidget.headerItem().setFont(3, font) self.mAT1T1ITreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mAT1T1ITreeWidget.setGeometry(QtCore.QRect(10, 570, 1031, 91)) self.mAT1T1ITreeWidget.setObjectName(“mAT1T1ITreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mAT1T1ITreeWidget.headerItem().setFont(0, font) self.mAT1T1ITreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mAT1T1ITreeWidget.headerItem().setFont(3, font) self.mLFETreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mLFETreeWidget.setGeometry(QtCore.QRect(10, 660, 1031, 101)) self.mLFETreeWidget.setObjectName(“mLFETreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mLFETreeWidget.headerItem().setFont(0, font) self.mLFETreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mLFETreeWidget.headerItem().setFont(3, font) self.mETC2TreeWidget = QtWidgets.QTreeWidget(self.tab_2) self.mETC2TreeWidget.setGeometry(QtCore.QRect(10, 760, 1031, 101)) self.mETC2TreeWidget.setObjectName(“mETC2TreeWidget”) font = QtGui.QFont() font.setPointSize(12) self.mETC2TreeWidget.headerItem().setFont(0, font) self.mETC2TreeWidget.headerItem().setTextAlignment(1, QtCore.Qt.AlignJustify|QtCore.Qt.AlignVCenter) font = QtGui.QFont() font.setKerning(True) self.mETC2TreeWidget.headerItem().setFont(3, font) self.tabWidget.addTab(self.tab_2, “”) self.mComCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mComCfgBox.setGeometry(QtCore.QRect(1040, 10, 191, 231)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mComCfgBox.setFont(font) self.mComCfgBox.setObjectName(“mComCfgBox”) self.mPortName = QtWidgets.QLabel(self.mComCfgBox) self.mPortName.setGeometry(QtCore.QRect(20, 30, 61, 21)) self.mPortName.setObjectName(“mPortName”) self.mBpsName = QtWidgets.QLabel(self.mComCfgBox) self.mBpsName.setGeometry(QtCore.QRect(20, 60, 61, 21)) self.mBpsName.setObjectName(“mBpsName”) self.mDatabitName = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitName.setGeometry(QtCore.QRect(20, 90, 61, 21)) self.mDatabitName.setObjectName(“mDatabitName”) self.mStopName = QtWidgets.QLabel(self.mComCfgBox) self.mStopName.setGeometry(QtCore.QRect(20, 120, 61, 21)) self.mStopName.setObjectName(“mStopName”) self.mOddName = QtWidgets.QLabel(self.mComCfgBox) self.mOddName.setGeometry(QtCore.QRect(20, 150, 61, 21)) self.mOddName.setObjectName(“mOddName”) self.mDatabitVal = QtWidgets.QLabel(self.mComCfgBox) self.mDatabitVal.setGeometry(QtCore.QRect(100, 90, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mDatabitVal.setFont(font) self.mDatabitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mDatabitVal.setAlignment(QtCore.Qt.AlignCenter) self.mDatabitVal.setObjectName(“mDatabitVal”) self.mStopBitVal = QtWidgets.QLabel(self.mComCfgBox) self.mStopBitVal.setGeometry(QtCore.QRect(100, 120, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mStopBitVal.setFont(font) self.mStopBitVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mStopBitVal.setAlignment(QtCore.Qt.AlignCenter) self.mStopBitVal.setObjectName(“mStopBitVal”) self.mOddVal = QtWidgets.QLabel(self.mComCfgBox) self.mOddVal.setGeometry(QtCore.QRect(100, 150, 54, 21)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mOddVal.setFont(font) self.mOddVal.setLayoutDirection(QtCore.Qt.LeftToRight) self.mOddVal.setAlignment(QtCore.Qt.AlignCenter) self.mOddVal.setObjectName(“mOddVal”) self.mPortVal = QtWidgets.QComboBox(self.mComCfgBox) self.mPortVal.setGeometry(QtCore.QRect(90, 30, 81, 22)) self.mPortVal.setObjectName(“mPortVal”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mPortVal.addItem(“”) self.mBPSVal = QtWidgets.QComboBox(self.mComCfgBox) self.mBPSVal.setGeometry(QtCore.QRect(90, 60, 81, 22)) self.mBPSVal.setObjectName(“mBPSVal”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mBPSVal.addItem(“”) self.mOpenSerial = QtWidgets.QDialogButtonBox(self.mComCfgBox) self.mOpenSerial.setGeometry(QtCore.QRect(20, 190, 156, 31)) self.mOpenSerial.setStandardButtons(QtWidgets.QDialogButtonBox.Close|QtWidgets.QDialogButtonBox.Open) self.mOpenSerial.setObjectName(“mOpenSerial”) self.mCycleCfgBox = QtWidgets.QGroupBox(self.centralwidget) self.mCycleCfgBox.setGeometry(QtCore.QRect(1040, 260, 191, 221)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mCycleCfgBox.setFont(font) self.mCycleCfgBox.setObjectName(“mCycleCfgBox”) self.mcheck1000ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck1000ms.setGeometry(QtCore.QRect(20, 180, 141, 31)) self.mcheck1000ms.setObjectName(“mcheck1000ms”) self.mcheck500ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck500ms.setGeometry(QtCore.QRect(20, 150, 141, 31)) self.mcheck500ms.setObjectName(“mcheck500ms”) self.mcheck100ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck100ms.setGeometry(QtCore.QRect(20, 90, 141, 31)) self.mcheck100ms.setObjectName(“mcheck100ms”) self.mcheck50ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck50ms.setGeometry(QtCore.QRect(20, 60, 141, 31)) self.mcheck50ms.setObjectName(“mcheck50ms”) self.mcheck20ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck20ms.setGeometry(QtCore.QRect(20, 30, 141, 31)) self.mcheck20ms.setObjectName(“mcheck20ms”) self.mcheck200ms = QtWidgets.QCheckBox(self.mCycleCfgBox) self.mcheck200ms.setGeometry(QtCore.QRect(20, 120, 141, 31)) self.mcheck200ms.setObjectName(“mcheck200ms”) self.mEventSigBox = QtWidgets.QGroupBox(self.centralwidget) self.mEventSigBox.setGeometry(QtCore.QRect(1050, 490, 191, 151)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mEventSigBox.setFont(font) self.mEventSigBox.setObjectName(“mEventSigBox”) self.radioLeftREvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioLeftREvent.setGeometry(QtCore.QRect(10, 30, 151, 16)) self.radioLeftREvent.setObjectName(“radioLeftREvent”) self.radioKiilEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioKiilEvent.setGeometry(QtCore.QRect(10, 90, 151, 16)) self.radioKiilEvent.setObjectName(“radioKiilEvent”) self.radioPEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioPEvent.setGeometry(QtCore.QRect(10, 120, 151, 16)) self.radioPEvent.setObjectName(“radioPEvent”) self.radioOpenCloseEvent = QtWidgets.QRadioButton(self.mEventSigBox) self.radioOpenCloseEvent.setGeometry(QtCore.QRect(10, 60, 151, 16)) self.radioOpenCloseEvent.setObjectName(“radioOpenCloseEvent”) self.mReadOBDinfBox = QtWidgets.QGroupBox(self.centralwidget) self.mReadOBDinfBox.setGeometry(QtCore.QRect(1050, 660, 191, 171)) font = QtGui.QFont() font.setPointSize(14) font.setBold(True) font.setWeight(75) self.mReadOBDinfBox.setFont(font) self.mReadOBDinfBox.setObjectName(“mReadOBDinfBox”) self.radioVinRead = QtWidgets.QRadioButton(self.mReadOBDinfBox) self.radioVinRead.setGeometry(QtCore.QRect(10, 40, 141, 21)) self.radioVinRead.setObjectName(“radioVinRead”) self.mVinInfShow = QtWidgets.QTextBrowser(self.mReadOBDinfBox) self.mVinInfShow.setGeometry(QtCore.QRect(10, 70, 171, 91)) self.mVinInfShow.setObjectName(“mVinInfShow”) MainWindow.setCentralWidget(self.centralwidget) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName(“statusbar”) MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) self.tabWidget.setCurrentIndex(0) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate(“MainWindow”, “MainWindow”)) for num in range(0, 150, 1): item = self.tableWidget.verticalHeaderItem(num) item.setText(_translate(“MainWindow”, str(num +1))) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate(“MainWindow”, “时间标识”)) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate(“MainWindow”, “帧ID”)) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate(“MainWindow”, “帧类型”)) item = self.tableWidget.horizontalHeaderItem(3) item.setText(_translate(“MainWindow”, “长度”)) item = self.tableWidget.horizontalHeaderItem(4) item.setText(_translate(“MainWindow”, “数据 (BIT7–BIT0 大端模式)”)) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate(“MainWindow”, “Tab 1”)) self.mSpeedTreeWidget.headerItem().setText(0, _translate(“MainWindow”, “速度[CCVS1]”)) self.mSpeedTreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mSpeedTreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mSpeedTreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(km/h)”)) self.mSpeedTreeWidget.setColumnWidth(0, 150) self.mSpeedTreeWidget.setColumnWidth(1, 150) self.mSpeedTreeWidget.setColumnWidth(2, 550) self.mSpeedTreeWidget.setColumnWidth(3, 150) self.mRPMTreeWidget.headerItem().setText(0, _translate(“MainWindow”, “转速[EEC1]”)) self.mRPMTreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mRPMTreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mRPMTreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(rpm)”)) self.mRPMTreeWidget.setColumnWidth(0, 150) self.mRPMTreeWidget.setColumnWidth(1, 150) self.mRPMTreeWidget.setColumnWidth(2, 550) self.mRPMTreeWidget.setColumnWidth(3, 150) self.mVDHRTreeWidget.headerItem().setText(0, _translate(“MainWindow”, “里程[VDHR]”)) self.mVDHRTreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mVDHRTreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mVDHRTreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(km)”)) self.mVDHRTreeWidget.setColumnWidth(0, 150) self.mVDHRTreeWidget.setColumnWidth(1, 150) self.mVDHRTreeWidget.setColumnWidth(2, 550) self.mVDHRTreeWidget.setColumnWidth(3, 150) self.mHoursTreeWidget.headerItem().setText(0, _translate(“MainWindow”, “工作时长[HOURS]”)) self.mHoursTreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mHoursTreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mHoursTreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(hours)”)) self.mHoursTreeWidget.setColumnWidth(0, 150) self.mHoursTreeWidget.setColumnWidth(1, 150) self.mHoursTreeWidget.setColumnWidth(2, 550) self.mHoursTreeWidget.setColumnWidth(3, 150) self.mEECTreeWidget.headerItem().setText(0, _translate(“MainWindow”, “发动机负载[EEC1]”)) self.mEECTreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mEECTreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mEECTreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(%)”)) self.mEECTreeWidget.setColumnWidth(0, 150) self.mEECTreeWidget.setColumnWidth(1, 150) self.mEECTreeWidget.setColumnWidth(2, 550) self.mEECTreeWidget.setColumnWidth(3, 150) self.mET1TreeWidget.headerItem().setText(0, _translate(“MainWindow”, “冷却液温度[ET1]”)) self.mET1TreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mET1TreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mET1TreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(°)”)) self.mET1TreeWidget.setColumnWidth(0, 150) self.mET1TreeWidget.setColumnWidth(1, 150) self.mET1TreeWidget.setColumnWidth(2, 550) self.mET1TreeWidget.setColumnWidth(3, 150) self.mAT1T1ITreeWidget.headerItem().setText(0, _translate(“MainWindow”, “燃油液面[AT1T1I]”)) self.mAT1T1ITreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mAT1T1ITreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mAT1T1ITreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(%)”)) self.mAT1T1ITreeWidget.setColumnWidth(0, 150) self.mAT1T1ITreeWidget.setColumnWidth(1, 150) self.mAT1T1ITreeWidget.setColumnWidth(2, 550) self.mAT1T1ITreeWidget.setColumnWidth(3, 150) self.mLFETreeWidget.headerItem().setText(0, _translate(“MainWindow”, “平均油耗[LFE]”)) self.mLFETreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mLFETreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mLFETreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal(L/h)”)) self.mLFETreeWidget.setColumnWidth(0, 150) self.mLFETreeWidget.setColumnWidth(1, 150) self.mLFETreeWidget.setColumnWidth(2, 550) self.mLFETreeWidget.setColumnWidth(3, 150) self.mETC2TreeWidget.headerItem().setText(0, _translate(“MainWindow”, “档位[ETC2]”)) self.mETC2TreeWidget.headerItem().setText(1, _translate(“MainWindow”, “CanID”)) self.mETC2TreeWidget.headerItem().setText(2, _translate(“MainWindow”, “Data”)) self.mETC2TreeWidget.headerItem().setText(3, _translate(“MainWindow”, “Signal”)) self.mETC2TreeWidget.setColumnWidth(0, 150) self.mETC2TreeWidget.setColumnWidth(1, 150) self.mETC2TreeWidget.setColumnWidth(2, 550) self.mETC2TreeWidget.setColumnWidth(3, 150) self.tableWidget.setColumnWidth(0, 200) self.tableWidget.setColumnWidth(1, 150) self.tableWidget.setColumnWidth(4,450) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate(“MainWindow”, “CanOBD Inf Show”)) self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate(“MainWindow”, “CanOBD J1939 Show”)) self.mComCfgBox.setTitle(_translate(“MainWindow”, “串口配置”)) self.mPortName.setText(_translate(“MainWindow”, “端口号”)) self.mBpsName.setText(_translate(“MainWindow”, “波特率”)) self.mDatabitName.setText(_translate(“MainWindow”, “数据位”)) self.mStopName.setText(_translate(“MainWindow”, “停止位”)) self.mOddName.setText(_translate(“MainWindow”, “检验位”)) self.mDatabitVal.setText(_translate(“MainWindow”, “8”)) self.mStopBitVal.setText(_translate(“MainWindow”, “1”)) self.mOddVal.setText(_translate(“MainWindow”, “无”)) self.mBPSVal.setItemText(0, _translate(“MainWindow”, “9600”)) self.mBPSVal.setItemText(1, _translate(“MainWindow”, “19200”)) self.mBPSVal.setItemText(2, _translate(“MainWindow”, “115200”)) self.mBPSVal.setItemText(3, _translate(“MainWindow”, “230400”)) self.mBPSVal.setItemText(4, _translate(“MainWindow”, “256000”)) self.mBPSVal.setItemText(5, _translate(“MainWindow”, “460800”)) port_list = list(serial.tools.list_ports.comports()) if port_list.len() is not 0: for num in range(port_list.len()): self.mPortVal.setItemText(num, _translate(“MainWindow”, str(port_list[num].device))) serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial = SerialThread(serialport, serialbaudrate) self.mCycleCfgBox.setTitle(_translate(“MainWindow”, “过滤设置（周期）”)) self.mcheck1000ms.setText(_translate(“MainWindow”, “1000ms 周期”)) self.mcheck500ms.setText(_translate(“MainWindow”, “500ms 周期”)) self.mcheck100ms.setText(_translate(“MainWindow”, “100ms 周期”)) self.mcheck50ms.setText(_translate(“MainWindow”, “50ms 周期”)) self.mcheck20ms.setText(_translate(“MainWindow”, “20ms 周期”)) self.mcheck200ms.setText(_translate(“MainWindow”, “200ms 周期”)) self.mEventSigBox.setTitle(_translate(“MainWindow”, “事件信号策略”)) self.radioLeftREvent.setText(_translate(“MainWindow”, “左右转 事件”)) self.radioKiilEvent.setText(_translate(“MainWindow”, “刹车 事件”)) self.radioPEvent.setText(_translate(“MainWindow”, “档位 事件”)) self.radioOpenCloseEvent.setText(_translate(“MainWindow”, “开关门 事件”)) self.mReadOBDinfBox.setTitle(_translate(“MainWindow”, “主动读取信息”)) self.radioVinRead.setText(_translate(“MainWindow”, “VIN 信息”)) def OpenSerial(self): if self.LSerial != None: if self.LSerial.SerialIsOpen(): self.LSerial.del() port_list = list(serial.tools.list_ports.comports()) if port_list.len() != 0: serialport = self.mPortVal.currentText() serialbaudrate = self.mBPSVal.currentText() self.LSerial.init(serialport,serialbaudrate) # 开启线程 self.thread = Worker() # 创建线程对象 self.thread.update_signal.connect(self.CanOBDdatarefresh) # 连接信号和槽 self.thread.update_signal.connect(self.CanOBDSignalAnalyPro) # 连接信号和槽 # self.thread.update_signal.connect(self.LSerial.Com_read_frame) # 连接信号和槽 self.thread.start() # 启动线程 #self.LSerial.Com_read_frame() self.LSerial.start_reading() # <-- 在这里启动读取线程 def CloseSerial(self): if self.LSerial.SerialIsOpen(): self.LSerial.close() def Serialconnectslot(self): self.mOpenSerial.accepted.connect(self.OpenSerial) self.mOpenSerial.rejected.connect(self.CloseSerial) def get_checked_cycles(self): “”“返回用户勾选的所有周期值（毫秒）”“” checked_cycles = [] if self.mcheck20ms.isChecked(): checked_cycles.append(10) if self.mcheck50ms.isChecked(): checked_cycles.append(50) if self.mcheck100ms.isChecked(): checked_cycles.append(100) if self.mcheck200ms.isChecked(): checked_cycles.append(200) if self.mcheck500ms.isChecked(): checked_cycles.append(500) if self.mcheck1000ms.isChecked(): checked_cycles.append(1000) return checked_cycles def CanOBDdatarefresh(self): # # 检查数据接收是否超时（1秒阈值） # current_time = time.time() # if current_time - self.LSerial.last_data_time > 1.0: # # 清空缓冲区并跳过刷新 # global frame_buffer # frame_buffer = bytearray() # return filtered_cycles = self.get_checked_cycles() all_update_ids = self.LSerial.data_updated_ids | self.LSerial.new_added_ids for can_id in all_update_ids: # 查找该ID在列表中的位置 row_index = None for idx, item in enumerate(CanOBDItemList): if item[1] == can_id: row_index = idx break if row_index is None or row_index >= self.tableWidget.rowCount(): continue # 周期过滤检查 if can_id in self.LSerial.cycle_dict: cycle = self.LSerial.cycle_dict[can_id] skip = False for filtered_cycle in filtered_cycles: tolerance = filtered_cycle * 0.1 if abs(cycle - filtered_cycle) <= tolerance: skip = True break if skip: continue # 更新表格行 item_data = CanOBDItemList[row_index] self.tableWidget.setItem(row_index, 0, QtWidgets.QTableWidgetItem(str(item_data[0]))) self.tableWidget.setItem(row_index, 1, QtWidgets.QTableWidgetItem(str(item_data[1]))) self.tableWidget.setItem(row_index, 2, QtWidgets.QTableWidgetItem(str(item_data[2]))) self.tableWidget.setItem(row_index, 3, QtWidgets.QTableWidgetItem(str(item_data[3]))) self.tableWidget.setItem(row_index, 4, QtWidgets.QTableWidgetItem(str(item_data[4]))) # 清空标志位 self.LSerial.data_updated_ids.clear() self.LSerial.new_added_ids.clear() self.tableWidget.show() def CanOBDSignalAnalyPro(self): index = 0 bfindflag = 0 if all(not sublist for sublist in CanPGNItemList) or CanPGNItemList[0][0] == 0: if len(CanPGNItemList): CanPGNItemList.pop(0) else: for signalindex in CanPGNItemList: value = ‘’.join(c for c in signalindex[0].lower() if c in ‘0123456789abcdef’) # 判断是否需要补零（前面补） if len(value) % 2 != 0: value = ‘0’ + value # 将处理后的字符串重新赋值给 signalindex[0] signalindex[0] = value PGNCanID = bytes.fromhex(str(signalindex[0])).hex() #PGNCanID = int(signalindex[0]) #车速 if (PGNCanID == bytes.fromhex(“FEF1”).hex()): num_top_items = self.mSpeedTreeWidget.topLevelItemCount() for index in range(num_top_items ): if (self.mSpeedTreeWidget.topLevelItem(index).text(1) == str(signalindex[1])): self.mSpeedTreeWidget.topLevelItem(index).setText(0, str(signalindex[0])) self.mSpeedTreeWidget.topLevelItem(index).setText(1, str(signalindex[1])) self.mSpeedTreeWidget.topLevelItem(index).setText(2, str(signalindex[2])) self.mSpeedTreeWidget.topLevelItem(index).setText(3, str(signalindex[3])) bfindflag = 1 break #self.mSpeedTreeWidget.addTopLevelItem(speeditem) if bfindflag == 0: speeditem = QTreeWidgetItem(self.mSpeedTreeWidget) speeditem.setText(0, str(signalindex[0])) speeditem.setText(1, str(signalindex[1])) speeditem.setText(2, str(signalindex[2])) speeditem.setText(3, str(signalindex[3])) self.mSpeedTreeWidget.addTopLevelItem(speeditem) self.mSpeedTreeWidget.expandAll() self.mSpeedTreeWidget.show() class Worker(QThread): update_signal = pyqtSignal(int) # 定义一个信号，用于传递更新信息到主线程 def run(self): 模拟耗时操作 while True: time.sleep(0.5) self.update_signal.emit(1) # 发射信号，传递更新信息 这是canobd文件 这个程序在接收can数据时存在严重的丢包，1秒发送10条一样canid的数据时，也会产生50%的丢包。我用print DATA进行测试，为了简化表示，假设我发送的数据是A B C D E F G这边print显示接收到的就是 A C E G。能根据测试结果帮我找出程序的固有缺陷吗
07-17
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获取淘宝服务器时间
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快速获取目标网站服务器时间，让你在参加抢拍秒杀的时候，第一时间与网站同步。
在网页上显示一个时时刷新的时钟，含有毫秒
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<html><head><script type="text/javascript">function startTime(){var today=new Date()var h=today.getHours()var m=today.getMinutes()var s=today.getSeconds()var ms=today.getMilliseconds...
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获取当前的时间，精确到毫秒 System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS") .format(new Date() )); 获取当前时间，精确到秒 private static final SimpleDateFormat DATE_FORMAT_FULL = new SimpleDate...
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怎么得到淘宝服务器的毫秒级时间呢？
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实时获取淘宝时间 如今啥东西都搞饥饿营销，啥都要抢，而且抢的人还不少，一旦晚一秒就很难抢到了，本人在经历了好几个月的抢手机抢鞋失败后，终于意识到自己手机的时间跟淘宝不一样！！手机时间比淘宝慢了一秒，这就导致我卡点进去的时候已经比别人慢了，那要如何获得淘宝的实时时间呢，在网上找到了一个python写的实时显示淘宝时间的代码，在此分享给大家，有想卡点抢东西的一定要看平台服务器的时间！ Python代码 #!/usr/bin/python # -*- coding: UTF-8 -*- import tkint
C/C++获取精确到微秒级的系统时间
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