下位机使用北京大华程控电源DH1766-1，上位机使用WPF。实现了电压电流实时采集，曲线显示。上午在公司调试成功，手头没有程控电源，使用TCP服务端模拟。昨天写的TCP服务端正好排上用场。
界面如下：
服务端
服务端实在上篇基础上实现的。需要做如下更改：
while (true)
{
try
{
byte[] bufferDate = new byte[1024];
int realLen = pSocket.Receive(bufferDate);
if (realLen
{
Socket serSocket = (Socket)s;
while (true)//不断接收客户端连接
{
this.Invoke(addTextDelegate, "服务正在等待客户端连接……\r\n");
//开始接收客户端的连接
//阻塞当前线程，等待客户端连接
//客户端连接上之后，服务端自动生成一个socket和连接的客端通信
Socket proxSocket = serSocket.Accept();
this.Invoke(addTextDelegate, "客户端连接成功！\r\n" + proxSocket.RemoteEndPoint.ToString());
//proxSocket.Send(Encoding.Default.GetBytes("连接成功！"));
socketList.Add(proxSocket);//当前通信的socket放到集合中
new Thread(p =>
{
Socket pSocket = (Socket)p;
while (true)
{
try
{
byte[] bufferDate = new byte[1024];
int realLen = pSocket.Receive(bufferDate);
if (realLen
{
while (true)
{
try
{
ReceiveByte = new byte[1024];
int realLen = socket.Receive(ReceiveByte);
ReceiveStr = Encoding.Default.GetString(ReceiveByte, 0, realLen);
ReceiveEvent();
if (realLen 0&&IsConnected)
{
if (socket != null && socket.Connected)
{
try
{
socket.Send(sendMsg);
return true;
}
catch (Exception ex)
{
IsConnected = false;
Log.WriteLog("发送数据失败,目标地址" + TagetIPEP.Address, ex);
}
}
}
return false;
}
关闭方法：
public void Close()
{
if (socket != null && socket.Connected)
{
IsConnected = false;
recListenThread.Abort();
Log.WriteLog("关闭连接！");
socket.Shutdown(SocketShutdown.Both);
socket.Close();
}
}
在出现异常时调用
消息接收事件：
public event Action ReceiveEvent;
每次接收消息时触发，获取属性ReceiveStr和ReceiveByte的值，刷新UI界面。
完整代码：
public class TCPClient
{
public TCPClient(/*IPEndPoint localIPEP,*/IPEndPoint targetIPEP)
{
//socket.Bind(localIPEP);
TagetIPEP = targetIPEP;
}
public readonly IPEndPoint TagetIPEP;
public bool IsConnected { get; set; www.meiwanyule.cn} = false;
private Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) { /*ReceiveTimeout=1000,SendTimeout=1000*/};
public bool Connect(www.sanxinyulevip.com)
{
try
{
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
{
//ReceiveTimeout = 1000,
//SendTimeout=1000
};
//IAsyncResult connResult = socket.BeginConnect(TagetIPEP.Address, TagetIPEP.Port, null, null);
//connResult.AsyncWaitHandle.WaitOne(5000, true);
//if (connResult.IsCompleted)
//{
socket.Connect(TagetIPEP.Address, TagetIPEP.Port);
IsConnected = true;
//开启接收监听
recListenThread = new Thread((www.yongshi123.cn) =>
{
while (true)
{
try
{
ReceiveByte = new byte[1024];
int realLen = socket.Receive(ReceiveByte);
ReceiveStr = Encoding.Default.GetString(ReceiveByte, 0, realLen);
ReceiveEvent();
if (realLen 0&&IsConnected)
{
if (socket != null && socket.Connected)
{
try
{
socket.Send(www.xintiandiyule1.com sendMsg);
return true;
}
catch (www.ysyl157.com Exception ex)
{
IsConnected = false;
Log.WriteLog("发送数据失败,目标地址" + TagetIPEP.Address, ex);
}
}
}
return false;
}
public event Action ReceiveEvent;
public string ReceiveStr { get; set; }
public byte[] ReceiveByte {www.dasheng178.com get; set; }
public void Close()
{
if (socket != null && socket.Connected)
{
IsConnected = false;
recListenThread.Abort();
Log.WriteLog("关闭连接！");
socket.Shutdown(SocketShutdown.Both);
socket.Close(www.qcaphb.com/);
}
}
private Thread recListenThread;
}前台调用，声明Timer定时器，每个一秒触发一次。触发事件如下：
private string flag = "";
private void QueryTimer_Elapsed(object sender,www.ysgj1688.com System.Timers.ElapsedEventArgs e)
{
Now = DateTime.Now;
if (!tcp.Send("MEAS:VOLTage:ALL?\n"))
{
queryTimer.Enabled =www.baishenyvip.com false;
StartContent = "开始";
ConnContent = "连接";
tcp.IsConnected = false;
MessageBox.Show("查询失败！");
return;
}
flag = "V";
Thread.Sleep(50);
if (!tcp.Send("MEAS:CURR:ALL?\n"))
{
queryTimer.Enabled www.365soke.com= false;
StartContent = "开始";
ConnContent = "连接";
tcp.IsConnected = false;
MessageBox.Show("查询失败！");
return;
}
flag = "C";
#region 测试
//angle += 18;
//if (angle > 360)
//{
// angle = 18;
//}
#endregion
}
刷新UI界面的事件如下：
private void Tcp_ReceiveEvent()
{
Task.Run(() =>
{
Application.Current.Dispatcher.Invoke((www.fengshen157.com) =>
{
RemoteIP = tcp.TagetIPEP.ToString();
switch (flag)
{
case "V":
VoltValue = Math.Round(Convert.ToDouble(tcp.ReceiveStr.Split(',')[0]), 3);
break;
case "C":
CurrentValue = Math.Round(Convert.ToDouble(tcp.ReceiveStr.Split(',')[0]), 3);
break;
default:
break;
}
#region 测试
//VoltValue = Math.Round(Math.Sin((angle) * pi / 180) * 16 + 16, 3);
//CurrentValue =www.yongshiyule178.com Math.Round(Math.Sin((angle) * pi / 180) * 2.5 + 2.5, 3);
#endregion
VoltValues.Add(VoltValue);
CurrentValues.Add(CurrentValue);
if (VoltValues.Count > 30)
{
VoltValues.RemoveAt(0);
CurrentValues.RemoveAt(0);
}
});
});
}
原文地址： https://my.oschina.net/u/3386278/blog/3024823
