public SerialFrame GetFrame(int timeout)
{
SerialFrame sf = null;
lock (((ICollection)queueFrame).SyncRoot)
{
if (queueFrame.Count > 0)
{
sf = queueFrame.Dequeue();
}
}
if (timeout == 0 || sf != null)
{
return(sf);
}
if (timeout < 0)
{
eventFrame.WaitOne();
}
else
{
eventFrame.WaitOne(timeout, false);
}
return(GetFrame(0));
}
public void PutFrame(SerialFrame sf)
{
if (sf == null) return;
if (this.Cmd > 0 && this.Cmd != sf.Cmd) return;
lock (((ICollection)queueFrame).SyncRoot)
{
if (queueFrame.Count > 100)
{
queueFrame.Dequeue();
}
queueFrame.Enqueue(sf);
eventFrame.Set();
}
}
/// <summary>
/// 处理设备的请求命令
/// </summary>
private void ProcessRequest()
{
try
{
FrameMonitor monitor = AddMonitor();
while (true)
{
DeviceRequest[] requests = null;
lock (((ICollection)listRequest).SyncRoot)
{
requests = listRequest.ToArray();
listRequest.Clear();
}
if (requests == null || requests.Length <= 0)
{
eventRequest.WaitOne();
continue;
}
for (int i = 0; i < requests.Length; i++)
{
monitor.Cmd = requests[i].Cmd - 0x80;
SendSerialData(requests[i].Cmd, requests[i].Request);
monitor.Reset();
SerialFrame sf = monitor.GetFrame(500);
if (sf != null)
{
requests[i].AddResponse(sf.RawData);
}
}
}
}
catch (Exception)
{
}
}
public void PutFrame(SerialFrame sf)
{
if (sf == null)
{
return;
}
if (this.Cmd > 0 && this.Cmd != sf.Cmd)
{
return;
}
lock (((ICollection)queueFrame).SyncRoot)
{
if (queueFrame.Count > 100)
{
queueFrame.Dequeue();
}
queueFrame.Enqueue(sf);
eventFrame.Set();
}
}
private void ReceiveData()
{
byte[] buffer = new byte[128 * 1024 * 2];
byte[] frameBuffer = new byte[128 * 1024];
int framenum0 = 1;
int Lastframesequence0 = 0;
int framenum1 = 1;
int Lastframesequence1 = 0;
int framenum2 = 1;
int Lastframesequence2 = 0;
int frameLength = 0;
int leftLength = 0;
int dataLength = 0;
int realLength = 0;
bool rollback = false;
try
{
sp.ReadTimeout = 500;
while (true)
{
dataLength=0;
if (rollback) //前一个数据帧回滚
{
for (int i = 1; i < frameLength; i++)
{
if (frameBuffer[i] == 0xaa && ((i==frameLength-1) || (frameBuffer[i+1]==0xaa)))
{
dataLength = frameLength - i;
Array.Copy(frameBuffer, i, buffer, 0, dataLength);
break;
}
}
frameLength = 0;
rollback = false;
}
if (leftLength > 0) //前一个BUffer剩下的Data
{
Array.Copy(buffer, buffer.Length / 2, buffer, dataLength, leftLength);
dataLength += leftLength;
leftLength = 0;
}
if(dataLength<=0) //串口数据
{
try
{
dataLength = sp.Read(buffer, 0, buffer.Length / 2);
}
catch (TimeoutException)
{
rollback = true;
continue;
}
}
for (int i = 0; i < dataLength; i++)
{
frameBuffer[frameLength++] = buffer[i];
leftLength = dataLength - i - 1;
switch (frameLength)
{
case 1:
case 2:
if (frameBuffer[frameLength - 1] != 0xaa) //帧头
{
rollback = true;
}
break;
case 3:
if (frameBuffer[2] != 1) //版本协议
{
rollback = true;
}
break;
case 4:
break;
case 5:
{
realLength = frameBuffer[3] + (frameBuffer[4] << 8);//数据长度
if (realLength+9 > frameBuffer.Length || (realLength <= 0))
{
rollback = true;
}
}
break;
default:
if (frameLength == realLength + 9) //收到完整数据
{
if (frameBuffer[5] == 0x15)
{
//0通道帧序号的判断
if (framenum0 == 2 && frameBuffer[6] == 0)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence0 + 1)
{
rollback = true;
}
Lastframesequence0 = Presentframesequence;
}
else if (framenum0 == 1 && frameBuffer[6] == 0)
{
framenum0 = 2;
Lastframesequence0 = BitConverter.ToInt32(frameBuffer, 7);
}
//1通道帧序号的判断
if (framenum1 == 2 && frameBuffer[6] == 1)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence1 + 1)
{
rollback = true;
}
Lastframesequence1 = Presentframesequence;
}
else if (framenum1 == 1 && frameBuffer[6] == 1)
{
framenum1 = 2;
Lastframesequence1 = BitConverter.ToInt32(frameBuffer, 7);
}
//2通道帧序号的判断
if (framenum2 == 2 && frameBuffer[6] == 2)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence2 + 1)
{
rollback = true;
}
Lastframesequence2 = Presentframesequence;
}
else if (framenum0 == 1 && frameBuffer[6] == 2)
{
framenum2 = 2;
Lastframesequence2 = BitConverter.ToInt32(frameBuffer, 7);
}
}
UInt16 calSum= CalSUMCheck(frameBuffer, 5, realLength);
UInt16 realSum = (UInt16)(frameBuffer[realLength + 5] + (frameBuffer[realLength + 6] << 8));
if (calSum != realSum)
{
rollback = true;
}
else
{
//获取到完整的数据帧
if (frameBuffer[5] == 0x15)
{
int channel = frameBuffer[6];
byte gearvalue = (byte)(frameBuffer[12] >> 4);
if(gearvalue > 3)
{
rollback = true;
}
gearList[channel] = gearvalue;
if (channel < 3)
{
int adLen = frameBuffer[3] + (frameBuffer[4] << 8) - 6;//数据长度
List<Int16> listAd = new List<Int16>();
for (int j = 0; j < adLen / 2; j++)
{
Int16 adVal = (Int16)(frameBuffer[j * 2 + 11] + ((frameBuffer[j * 2 + 12] & 0x0F) << 8));
Int16 fAD = (Int16)listFiltes[channel].DoFilter(adVal);
listAd.Add(fAD);
}
Int16[] adArray=listAd.ToArray();
listBlock[channel].PutAdData(adArray, 0, adArray.Length);
lock (listChannelBlock)
{
List<ADBlock> listBB = listChannelBlock[channel];
foreach (ADBlock block in listBB)
{
block.PutAdData(adArray, 0, adArray.Length);
}
}
}
}
SerialFrame sf = new SerialFrame(frameBuffer, frameLength);
lock (((ICollection)listMonitor).SyncRoot)
{
foreach (FrameMonitor monitor in listMonitor)
{
monitor.PutFrame(sf);
}
}
frameLength = 0;
}
}
break;
}
if (rollback || frameLength>=frameBuffer.Length)
{
Array.Copy(buffer, i + 1, buffer, buffer.Length / 2, leftLength);
break;
}
}
}
}
catch (Exception)
{
}
}
private void ReceiveData()
{
byte[] buffer = new byte[128 * 1024 * 2];
byte[] frameBuffer = new byte[128 * 1024];
int framenum0 = 1;
int Lastframesequence0 = 0;
int framenum1 = 1;
int Lastframesequence1 = 0;
int framenum2 = 1;
int Lastframesequence2 = 0;
int frameLength = 0;
int leftLength = 0;
int dataLength = 0;
int realLength = 0;
bool rollback = false;
try
{
sp.ReadTimeout = 500;
while (true)
{
dataLength = 0;
if (rollback) //前一个数据帧回滚
{
for (int i = 1; i < frameLength; i++)
{
if (frameBuffer[i] == 0xaa && ((i == frameLength - 1) || (frameBuffer[i + 1] == 0xaa)))
{
dataLength = frameLength - i;
Array.Copy(frameBuffer, i, buffer, 0, dataLength);
break;
}
}
frameLength = 0;
rollback = false;
}
if (leftLength > 0) //前一个BUffer剩下的Data
{
Array.Copy(buffer, buffer.Length / 2, buffer, dataLength, leftLength);
dataLength += leftLength;
leftLength = 0;
}
if (dataLength <= 0) //串口数据
{
try
{
dataLength = sp.Read(buffer, 0, buffer.Length / 2);
}
catch (TimeoutException)
{
rollback = true;
continue;
}
}
for (int i = 0; i < dataLength; i++)
{
frameBuffer[frameLength++] = buffer[i];
leftLength = dataLength - i - 1;
switch (frameLength)
{
case 1:
case 2:
if (frameBuffer[frameLength - 1] != 0xaa) //帧头
{
rollback = true;
}
break;
case 3:
if (frameBuffer[2] != 1) //版本协议
{
rollback = true;
}
break;
case 4:
break;
case 5:
{
realLength = frameBuffer[3] + (frameBuffer[4] << 8); //数据长度
if (realLength + 9 > frameBuffer.Length || (realLength <= 0))
{
rollback = true;
}
}
break;
default:
if (frameLength == realLength + 9) //收到完整数据
{
if (frameBuffer[5] == 0x15)
{
//0通道帧序号的判断
if (framenum0 == 2 && frameBuffer[6] == 0)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence0 + 1)
{
rollback = true;
}
Lastframesequence0 = Presentframesequence;
}
else if (framenum0 == 1 && frameBuffer[6] == 0)
{
framenum0 = 2;
Lastframesequence0 = BitConverter.ToInt32(frameBuffer, 7);
}
//1通道帧序号的判断
if (framenum1 == 2 && frameBuffer[6] == 1)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence1 + 1)
{
rollback = true;
}
Lastframesequence1 = Presentframesequence;
}
else if (framenum1 == 1 && frameBuffer[6] == 1)
{
framenum1 = 2;
Lastframesequence1 = BitConverter.ToInt32(frameBuffer, 7);
}
//2通道帧序号的判断
if (framenum2 == 2 && frameBuffer[6] == 2)
{
int Presentframesequence = BitConverter.ToInt32(frameBuffer, 7);
if (Presentframesequence != Lastframesequence2 + 1)
{
rollback = true;
}
Lastframesequence2 = Presentframesequence;
}
else if (framenum0 == 1 && frameBuffer[6] == 2)
{
framenum2 = 2;
Lastframesequence2 = BitConverter.ToInt32(frameBuffer, 7);
}
}
UInt16 calSum = CalSUMCheck(frameBuffer, 5, realLength);
UInt16 realSum = (UInt16)(frameBuffer[realLength + 5] + (frameBuffer[realLength + 6] << 8));
if (calSum != realSum)
{
rollback = true;
}
else
{
//获取到完整的数据帧
if (frameBuffer[5] == 0x15)
{
int channel = frameBuffer[6];
byte gearvalue = (byte)(frameBuffer[12] >> 4);
if (gearvalue > 3)
{
rollback = true;
}
gearList[channel] = gearvalue;
if (channel < 3)
{
int adLen = frameBuffer[3] + (frameBuffer[4] << 8) - 6; //数据长度
List <Int16> listAd = new List <Int16>();
for (int j = 0; j < adLen / 2; j++)
{
Int16 adVal = (Int16)(frameBuffer[j * 2 + 11] + ((frameBuffer[j * 2 + 12] & 0x0F) << 8));
Int16 fAD = (Int16)listFiltes[channel].DoFilter(adVal);
listAd.Add(fAD);
}
Int16[] adArray = listAd.ToArray();
listBlock[channel].PutAdData(adArray, 0, adArray.Length);
lock (listChannelBlock)
{
List <ADBlock> listBB = listChannelBlock[channel];
foreach (ADBlock block in listBB)
{
block.PutAdData(adArray, 0, adArray.Length);
}
}
}
}
SerialFrame sf = new SerialFrame(frameBuffer, frameLength);
lock (((ICollection)listMonitor).SyncRoot)
{
foreach (FrameMonitor monitor in listMonitor)
{
monitor.PutFrame(sf);
}
}
frameLength = 0;
}
}
break;
}
if (rollback || frameLength >= frameBuffer.Length)
{
Array.Copy(buffer, i + 1, buffer, buffer.Length / 2, leftLength);
break;
}
}
}
}
catch (Exception)
{
}
}
