using System;
using System.Collecti
ons.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Net.NetworkInformati
on;
using System.Net.Sockets;
using System.
Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
public class GenICamCameraM
onitor
{
// 相机状态枚举
public enum CameraStatus
{
Disc
onnected,
C
onnected,
Streaming,
Error
}
// 事件：相机状态变化
public event Acti
on<CameraStatus, CameraInfo>
OnStatusChanged;
// 相机信息结构
public struct CameraInfo
{
public string CameraModel;
public string CameraSerial;
public IPAddress IPAddress;
public
PhysicalAddress MACAddress;
public DateTime LastSeen;
}
// 监控参数
private read
only int _detecti
onInterval = 2000; // 检测间隔(毫秒)
private read
only int _gigeVisi
onPort = 3956; // GigE Visi
on标准端口
private Cancellati
onTokenSource _cts;
private CameraInfo _lastKnownCameraInfo;
private CameraStatus _lastStatus = CameraStatus.Disc
onnected;
private read
only string _targetModelPrefix = "TUCAM-API-GenICam";
private read
only byte[] _gigeVisi
onDiscoveryPacket = new byte[] { 0x00, 0x00, 0x00, 0x01 };
// 开始监控
public void Start
Monitoring()
{
if (_cts != null && !_cts.IsCancellati
onRequested)
return;
_cts = new Cancellati
onTokenSource();
Task.
Run(() => M
onitorLoop(_cts.Token), _cts.Token);
}
// 停止监控
public void Stop
Monitoring()
{
_cts?.Cancel();
}
// 主监控循环
private async Task M
onitorLoop(Cancellati
onToken token)
{
while (!token.IsCancellati
onRequested)
{
try
{
CameraInfo? detectedCamera = await DetectCameraAsync();
CameraStatus newStatus = detectedCamera.HasValue ?
(IsCameraStreaming(detectedCamera.Value) ? CameraStatus.Streaming : CameraStatus.C
onnected) :
CameraStatus.Disc
onnected;
// 状态变化检测
if (newStatus != _lastStatus ||
(detectedCamera.HasValue && !detectedCamera.Value.Equals(_lastKnownCameraInfo)))
{
_lastStatus = newStatus;
if (detectedCamera.HasValue)
{
_lastKnownCameraInfo = detectedCamera.Value;
OnStatusChanged?.Invoke(newStatus, _lastKnownCameraInfo);
}
else
{
OnStatusChanged?.Invoke(newStatus, default);
}
}
}
catch (Excepti
on ex)
{
Debug.WriteLine($"
Monitoring error: {ex.Message}");
OnStatusChanged?.Invoke(CameraStatus.Error, default);
}
// 等待下一个检测周期
await Task.Delay(_detecti
onInterval, token);
}
}
// 检测相机是否存在
private async Task<CameraInfo?> DetectCameraAsync()
{
try
{
// 步骤1: 获取本地网络接口信息
var localNics = NetworkInterface.GetAllNetworkInterfaces()
.Where(n => n.Operati
onalStatus == Operati
onalStatus.Up &&
n.NetworkInterfaceType != NetworkInterfaceType.Loopback)
.ToList();
if (localNics.Count == 0) return null;
// 步骤2: 扫描所有网络接口上的设备
foreach (var nic in localNics)
{
var arpResults = await GetArpTableAsync(nic.GetIPProperties().GatewayAddresses.FirstOrDefault()?.Address);
foreach (var device in arpResults)
{
// 步骤3: 检查是否是目标相机
if (await IsTargetCamera(device, nic))
{
return new CameraInfo
{
CameraModel = $"{_targetModelPrefix}[{device.MAC}]",
CameraSerial = device.MAC.ToString(),
IPAddress = device.IP,
MACAddress = device.MAC,
LastSeen = DateTime.Now
};
}
}
}
}
catch
{
// 忽略扫描错误
}
return null;
}
// 检查是否为目标相机
private async Task<bool> IsTargetCamera(ArpDevice device, NetworkInterface nic)
{
try
{
// 方法1: 发送GigE Visi
on发现包检查响应
using (var udpClient = new UdpClient(new IPEndPoint(nic.GetIPProperties().UnicastAddresses
.FirstOrDefault(ip => ip.Address.AddressFamily == AddressFamily.InterNetwork)?.Address, 0)))
{
udpClient.Client.ReceiveTimeout = 500;
udpClient.C
onnect(new IPEndPoint(device.IP, _gigeVisi
onPort));
await udpClient.SendAsync(_gigeVisi
onDiscoveryPacket, _gigeVisi
onDiscoveryPacket.Length);
// 等待响应
var receiveTask = udpClient.ReceiveAsync();
if (await Task.WhenAny(receiveTask, Task.Delay(300)) == receiveTask)
{
var result = receiveTask.Result;
if (result.Buffer.Length > 0)
{
// 检查响应是否符合GigE Visi
on标准
return result.Buffer.Length >= 20 && // 最小GVCP包长度
result.Buffer[0] == 0x00 && // 标志位
result.Buffer[1] == 0x00;
}
}
}
}
catch
{
// UDP通信失败，尝试备用检测方法
}
// 方法2: 检查端口开放情况（备用方法）
using (var tcpClient = new TcpClient())
{
try
{
var c
onnectTask = tcpClient.C
onnectAsync(device.IP, _gigeVisi
onPort);
if (await Task.WhenAny(c
onnectTask, Task.Delay(300)) == c
onnectTask && tcpClient.C
onnected)
{
return true;
}
}
catch
{
// TCP连接失败
}
}
return false;
}
// 检查相机是否在流传输状态
private bool IsCameraStreaming(CameraInfo camera)
{
try
{
// 监控流端口（通常为49152-65535范围）
var ipProperties = IPGlobalProperties.GetIPGlobalProperties();
var c
onnecti
ons = ipProperties.GetActiveTcpC
onnecti
ons();
return c
onnecti
ons.Any(c =>
c.RemoteEndPoint.Address.Equals(camera.IPAddress) &&
c.RemoteEndPoint.Port >= 49152 &&
c.State == TcpState.Established);
}
catch
{
return false;
}
}
#regi
on ARP扫描实现
// ARP设备结构
private struct ArpDevice
{
public IPAddress IP;
public
PhysicalAddress MAC;
}
// 获取ARP表
private async Task<List<ArpDevice>> GetArpTableAsync(IPAddress gateway)
{
if (gateway == null) return new List<ArpDevice>();
var
devices = new List<ArpDevice>();
var baseIp = gateway.ToString().Substring(0, gateway.ToString().LastIndexOf('.') + 1);
// 并行扫描子网
var scanTasks = new List<Task>();
for (int i = 1; i < 255; i++)
{
var ip = IPAddress.Parse($"{baseIp}{i}");
scanTasks.Add(ScanIpAddress(ip,
devices));
}
await Task.WhenAll(scanTasks);
return
devices;
}
// 扫描单个IP地址
private async Task ScanIpAddress(IPAddress ip, List<ArpDevice>
devices)
{
try
{
var ping = new Ping();
var reply = await ping.SendPingAsync(ip, 150);
if (reply.Status == IPStatus.Success)
{
var mac = await GetMacAddressAsync(ip);
if (mac !=
PhysicalAddress.N
one)
{
lock (
devices)
{
devices.Add(new ArpDevice { IP = ip, MAC = mac });
}
}
}
}
catch
{
// 忽略扫描错误
}
}
// 获取MAC地址
private async Task<
PhysicalAddress> GetMacAddressAsync(IPAddress ip)
{
try
{
return await Task.
Run(() =>
{
var macAddr =
PhysicalAddress.N
one;
int bufferLength = 6;
byte[] macBuffer = new byte[bufferLength];
uint destIp = BitC
onverter.ToUInt32(ip.GetAddressBytes(), 0);
if (SendARP(destIp, 0, macBuffer, ref bufferLength) == 0)
{
macAddr = new
PhysicalAddress(macBuffer.Take(bufferLength).ToArray());
}
return macAddr;
});
}
catch
{
return
PhysicalAddress.N
one;
}
}
// Win32 API声明
[DllImport("iphlpapi.dll", ExactSpelling = true)]
private static extern int SendARP(uint destIp, uint srcIp, byte[] macAddress, ref int macAddressLength);
#endregi
on
}
// 使用示例
public class Program
{
public static void Main()
{
C
onsole.WriteLine("TUCAM-API-GenICam Camera M
onitor");
var m
onitor = new GenICamCameraM
onitor();
m
onitor.
OnStatusChanged += (status, info) => {
string statusText;
switch (status)
{
case GenICamCameraM
onitor.CameraStatus.C
onnected:
statusText = "C
ONNECTED";
break;
case GenICamCameraM
onitor.CameraStatus.Streaming:
statusText = "STREAMING";
break;
case GenICamCameraM
onitor.CameraStatus.Disc
onnected:
statusText = "DISC
ONNECTED";
break;
default:
statusText = "ERROR";
break;
}
if (status != GenICamCameraM
onitor.CameraStatus.Disc
onnected)
{
C
onsole.WriteLine($"[{DateTime.Now:HH:mm:ss.fff}] Status: {statusText}");
C
onsole.WriteLine($" Model: {info.CameraModel}");
C
onsole.WriteLine($" Serial: {info.CameraSerial}");
C
onsole.WriteLine($" IP: {info.IPAddress}");
C
onsole.WriteLine($" MAC: {info.MACAddress}");
}
else
{
C
onsole.WriteLine($"[{DateTime.Now:HH:mm:ss.fff}] Camera disc
onnected");
}
};
m
onitor.Start
Monitoring();
C
onsole.WriteLine("
Monitoring started. Press any key to exit...");
C
onsole.Read();
/*m
onitor.Stop
Monitoring();
C
onsole.WriteLine("
Monitoring stopped.");*/
}
}
以上代码应该创建C#哪种类型的程序？
本文介绍了如何在OpenStack中集成SNMP和IPMI来监控物理设备，包括路由器、交换机等，并详细说明了安装、配置及使用步骤。同时，通过DevStack环境实现了对硬件资源如CPU、内存、磁盘和网络状态的监控，并介绍了如何监控资源健康数据如风扇速度、电压和温度。最后，展示了如何通过Ceilometer服务收集和存储这些监控数据。
and samples:
for such meters as hardware.disk and hardware.network in database has been stored additional information. IP, MAC, Name for network stats and device, path for disk.
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