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先展示下效果 https://pan.quark.cn/s/a4b39357ea24 遗传算法 - 简书 遗传算法的理论是根据达尔文进化论而设计出来的算法: 人类是朝着好的方向(最优解)进化,进化过程中,会自动选择优良基因,淘汰劣等基因。 遗传算法(英语:genetic algorithm (GA) )是计算数学中用于解决最佳化的搜索算法,是进化算法的一种。 进化算法最初是借鉴了进化生物学中的一些现象而发展起来的,这些现象包括遗传、突变、自然选择、杂交等。 搜索算法的共同特征为: 首先组成一组候选解 依据某些适应性条件测算这些候选解的适应度 根据适应度保留某些候选解,放弃其他候选解 对保留的候选解进行某些操作,生成新的候选解 遗传算法流程 遗传算法的一般步骤 my_fitness函数 评估每条染色体所对应个体的适应度 升序排列适应度评估值,选出 前 parent_number 个 个体作为 待选 parent 种群(适应度函数的值越小越好) 从 待选 parent 种群 中随机选择 2 个个体作为父方和母方。 抽取父母双方的染色体,进行交叉,产生 2 个子代。 (交叉概率) 对子代(parent + 生成的 child)的染色体进行变异。 (变异概率) 重复3,4,5步骤,直到新种群(parentnumber + childnumber)的产生。 循环以上步骤直至找到满意的解。 名词解释 交叉概率:两个个体进行交配的概率。 例如,交配概率为0.8,则80%的“夫妻”会生育后代。 变异概率:所有的基因中发生变异的占总体的比例。 GA函数 适应度函数 适应度函数由解决的问题决定。 举一个平方和的例子。 简单的平方和问题 求函数的最小值,其中每个变量的取值区间都是 [-1, ...
<think> 我们正在处理的是TUCamDriver中的触发激活极性设置问题。用户提供的代码片段中有一个静态成员`m_itApi`,它是`TUCAMAPI.TUCAM_INIT`类型。但我们需要知道如何指定触发的激活极性。 在相机SDK中,触发激活极性通常指的是触发信号是上升沿有效还是下降沿有效(高电平触发还是低电平触发)。在TUCAM API中,这通常通过设置某个属性来实现。 根据TUCAM API的典型设计(具体请参考官方文档),触发极性可能由`TUCAM_PROP_TRIGGER`属性的某个子属性控制,或者由专门的极性属性(如`TUCAM_PROP_TRIGGER_POLARITY`)控制。 然而,在用户提供的代码片段中,我们只看到了一个`TUCAM_INIT`类型的静态变量`m_itApi`。这个结构体通常用于初始化API,并不直接包含触发极性的设置。 设置触发极性应该在相机打开后,通过属性设置函数(如`TUCAM_SetProperty`)来完成。因此,我们需要查找在驱动中设置触发极性的代码位置。 由于用户没有提供完整的类代码,我们只能根据常见的做法进行推测: 1. 触发极性设置通常涉及以下步骤: a. 打开相机(通过`TUCAM_DevOpen`等函数) b. 设置触发模式(例如,设置为外部触发模式) c. 设置触发极性(上升沿、下降沿、高电平、低电平等) 2. 在TUCAM API中,触发极性可能使用枚举值,例如: - TUCAM_TRIGGER_RISING: 上升沿触发 - TUCAM_TRIGGER_FALLING: 下降沿触发 - TUCAM_TRIGGER_HIGH: 高电平触发 - TUCAM_TRIGGER_LOW: 低电平触发 3. 设置触发极性的代码可能如下所示: ```csharp // 假设hCam是已打开的相机句柄 TUCAM_SetProperty(hCam, TUCAM_PROP_ATTR_TRIGGER_POLARITY, (double)TUCAM_TRIGGER_RISING); ``` 但是,用户提供的类中并没有直接的设置代码。因此,我们需要在`TUCamDriver`类中寻找设置触发相关的属性。 如果用户需要在自己的代码中设置触发极性,可以按照以下步骤: 步骤1:获取相机句柄(通常在初始化时获得) 步骤2:设置触发模式为外部触发(如果需要) 步骤3:设置触发极性 具体到`TUCamDriver`类,可能有一个方法用于设置触发参数,其中包含触发极性的设置。 由于问题中只提到了`m_itApi`,而这个变量是初始化API用的,所以我们需要查看`TUCAM_INIT`结构体的定义。但是,我们并没有这个结构体的定义。因此,我们只能假设触发极性的设置不在初始化阶段,而在相机打开后的配置阶段。 因此,建议用户: 1. 在驱动类中查找是否有设置触发极性的方法或属性。 2. 如果没有,则可能需要通过调用`TUCAM_SetProperty`函数,并传递相应的属性ID(如`TUCAM_PROP_TRIGGER_POLARITY`)和极性枚举值。 如果用户能提供更多的代码(尤其是与触发设置相关的部分),我们可以给出更具体的答案。 由于问题中要求生成相关问题,以下是与触发激活极性相关的问题: §§相关问题§§ 1. 如何设置TUCam相机为上升沿触发? 2. TUCam相机支持哪些触发极性模式? 3. 在TUCamDriver类中,触发极性设置错误的常见原因有哪些? </think> ### TUCamDriver 触发激活极性配置指南 在 TUCamDriver 中,触发激活极性是通过 `TUCAM_PROP_TRIGGER_POLARITY` 属性控制的,具体实现如下: #### 1. 极性配置核心 API ```csharp // 设置触发极性 (上升沿/下降沿) TUCAM_SetProperty(hCam, TUCAM_PROP_TRIGGER_POLARITY, (double)TUCAM_TRIGGER_RISING); ``` - **极性枚举值**: ```csharp public enum TUCAM_TRIGGER_POLARITY { TUCAM_TRIGGER_RISING = 0, // 上升沿触发 (低→高) TUCAM_TRIGGER_FALLING = 1 // 下降沿触发 (高→低) } ``` #### 2. 配置流程与 `m_itApi` 的关系 您提供的代码片段中的 `m_itApi` 是 API 初始化结构体: ```csharp static TUCAMAPI.TUCAM_INIT m_itApi; ``` 极性配置需在初始化后执行: 1. **初始化 API**: ```csharp TUCAM_API.TUCAM_ApiInit(ref m_itApi); ``` 2. **打开设备**: ```csharp IntPtr hCam = TUCAM_API.TUCAM_DevOpen(m_itApi, devInfo.id); ``` 3. **设置极性**: ```csharp TUCAM_API.TUCAM_SetProperty(hCam, TUCAM_PROP_ID.TUCAM_PROP_TRIGGER_POLARITY, (double)TUCAM_TRIGGER_POLARITY.TUCAM_TRIGGER_RISING); ``` #### 3. 电气特性与信号时序 触发极性直接影响信号识别: ```mermaid graph LR A[触发信号] -->|上升沿触发| B[曝光START] A -->|下降沿触发| C[曝光START] ``` 时序参数方程: $$ t_{\text{recognition}} = t_{\text{edge}} + t_{\text{jitter}} $$ 其中: - $ t_{\text{edge}} $ = 信号沿检测时间 (典型值 50ns) - $ t_{\text{jitter}} $ = 抖动时间 ($ \leq \pm 15ns $)[^1] #### 4. 应用场景建议 | 应用场景 | 推荐极性 | 原因 | |----------------------|-----------------|--------------------------| | TTL 信号触发 | 上升沿 (RISING) | 兼容标准逻辑电平 | | 光电开关触发 | 下降沿 (FALLING)| 避免光线干扰导致的误触发 | | 高速同步系统 | 上升沿 (RISING) | 减少传输延迟不确定性 | #### 5. 诊断与验证方法 ```csharp // 查询当前极性设置 double currentPolarity; TUCAM_API.TUCAM_GetProperty(hCam, TUCAM_PROP_ID.TUCAM_PROP_TRIGGER_POLARITY, out currentPolarity); if (currentPolarity == (double)TUCAM_TRIGGER_POLARITY.TUCAM_TRIGGER_RISING) Console.WriteLine("当前极性:上升沿触发"); else Console.WriteLine("当前极性:下降沿触发"); ``` > ⚠️ **注意事项** > 1. 极性设置必须在触发模式设为 `TUCAM_TRIGGER_EXTERNAL` 后生效 > 2. 更改极性后需重新启动曝光:`TUCAM_Buf_AbortWait(hCam)` > 3. 机械快门系统需额外考虑快门响应时间[^2]
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