public virtual bool Start()
{
if (this.ScaleWight != null)
{
var e = new WeightEventArgs(0.0d);
e.RealWeight = true;
this.ScaleWight(this, e);
}
return(true);
}
/// <summary>
/// 实时获取当前揽件重量
/// </summary>
private void GetWight()
{
// 串口触发事件和线程退出事件
WaitHandle[] handles = new WaitHandle[] { _WightWaitHandle, _ExitHandle };
while (_bLooping)
{
int bWait = WaitHandle.WaitAny(handles);
// 退出线程
if (bWait == 1)
{
break;
}
// 实时称重数据回调
if (Interlocked.Read(ref _RealWightFlag) == 1)
{
if (ScaleWight != null)
{
double tmp = Interlocked.CompareExchange(ref _RealWight, 0, 0);
WeightEventArgs e = new WeightEventArgs(tmp);
e.RealWeight = false;
ScaleWight(this, e);
}
}
if (Interlocked.Read(ref _SampleWeightFlag) == 1)
{
// 计算样本平均值
Double avg = _SampleArray.Average();
// 排除最小电子称精度误差一下的重量
if (avg < 0.02 || Array.IndexOf(_SampleArray, 0.0) != -1)
{
// 重新取样运算
lock (_LockFlagObj)
{
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
Array.Clear(_SampleArray, 0, _SampleArray.Length);
}
continue;
}
// 计算样本方差大小
Double sum = 0.0;
foreach (var x in _SampleArray)
{
sum += (x - avg) * (x - avg);
}
// 计算当前样本集合的方差值
Double variance = sum / _nSampleCountPerGroup;
// 校验样本的方差值和最大误差之间的大小关系
if (avg >= 0.03 /*kg*/ && variance <= _MaxDeviation)
{
lock (_LockFlagObj)
{
Interlocked.CompareExchange(ref _SampleFlag, 0, 1);
Interlocked.CompareExchange(ref _RealWightFlag, 0, 1);
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
Array.Clear(_SampleArray, 0, _SampleArray.Length);
}
// 最终数据回调
if (ScaleWight != null)
{
WeightEventArgs e = new WeightEventArgs(avg);
e.RealWeight = true;
ScaleWight(this, e);
}
}
// 获取采样样本
else
{
lock (_LockFlagObj)
{
Array.Clear(_SampleArray, 0, _SampleArray.Length);
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
}
}
}
Thread.Sleep(1);
}
}
/// <summary>
/// 实时获取当前揽件重量
/// </summary>
private bool GetWight()
{
StreamWriter sw4 = File.AppendText("D:\\HaiMing.txt");
string w4 = " 已经进入AsyncPost \n";
sw4.Write(w4);
sw4.Close();
try
{
int cnt = 10;
while (cnt-- > 0)
{
//重量发送指令
_Serial.DiscardInBuffer();
byte[] buffer = new byte[8] {
0X1, 0X3, 0X0, 0X1, 0X0, 0X2, 0X95, 0XCB
};
_Serial.Write(buffer, 0, 8);
byte[] recvBuffer = new byte[16];
while (_Serial.BytesToRead < 9)
{
Thread.Sleep(10);
}
int i = _Serial.Read(recvBuffer, 0, 9);
if (recvBuffer[0] != 1 || recvBuffer[1] != 3)
{
StreamWriter sw8 = File.AppendText("D:\\HaiMing.txt");
string w8 = string.Format(" 读取串口重量错误返回 {0} {1} {2} {3} {4} {5} {6} {7} {8}", recvBuffer[0], recvBuffer[1], recvBuffer[2], recvBuffer[3], recvBuffer[4], recvBuffer[5], recvBuffer[6], recvBuffer[7], recvBuffer[8]);
sw8.Write(w8);
sw8.Close();
continue;
}
StreamWriter sw3 = File.AppendText("D:\\HaiMing.txt");
string w3 = string.Format(" 读取串口重量返回 {0} {1} {2} {3} {4} {5} {6} {7} {8} {9}", recvBuffer[0], recvBuffer[1], recvBuffer[2], recvBuffer[3], recvBuffer[4], recvBuffer[5], recvBuffer[6], recvBuffer[7], recvBuffer[8], recvBuffer[9]);
sw3.Write(w3);
sw3.Close();
weight = ((recvBuffer[3] << 8) | recvBuffer[4]);
StreamWriter sw9 = File.AppendText("D:\\HaiMing.txt");
string w9 = "转化完成重量：：：" + weight.ToString();
sw9.Write(w9);
sw9.Close();
// 计算重量
weight = weight * (float)0.01;
count = (UInt32)((recvBuffer[5] << 8) | recvBuffer[6]);
StreamWriter swa = File.AppendText("D:\\HaiMing.txt");
string wa = "当前count : " + count.ToString() + "前一次count(last count)" + _lastCount.ToString();
swa.Write(wa);
swa.Close();
if (flag == false)
{
_lastCount = count;
flag = true;
continue;
}
if (count == _lastCount)
{
Thread.Sleep(50);
continue;
}
else
{
_lastCount = count;
_lastWeight = weight;
break;
}
}
// 最终数据回调
if (ScaleWight != null)
{
StreamWriter sw9 = File.AppendText("D:\\HaiMing.txt");
string w9 = " \n 最终数据回调 \n ";
sw9.Write(w9);
sw9.Close();
//不能置ling
//if (cnt <= 0)
//{
// weight = 0;
//}
WeightEventArgs e = new WeightEventArgs(weight);
e.RealWeight = true;
e._bNeedOutPut = true;
ScaleWight(this, e);
return(true);
}
}
catch (Exception e)
{
Debug.WriteLine("GetWight serial exception, " + e.Message);
}
return(false);
}
/// <summary>
/// TCP数据流回调
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OmStreamData(object sender, StreamEventArgs e)
{
byte[] data = e.Data;
if (!Protocol.CheckResponse(data))
{
return;
}
/*
* StringBuilder sb = new StringBuilder();
* foreach (var b in data)
* {
* sb.AppendFormat("{0:x2} ", b);
* }
* Console.WriteLine(sb.ToString());
*/
byte[] weight = null;
byte[] code = null;
int weightLenIdx = 0x05;
if (weightLenIdx + 2 < data.Length)
{
// 解析重量
int nSymbol = (data[weightLenIdx + 1] == 0x2d) ? 1 : 0;
int weightLen = Convert.ToInt32(data[weightLenIdx]) + nSymbol;
if (weightLenIdx + weightLen + 1 < data.Length)
{
weight = new byte[weightLen];
Array.Copy(data, weightLenIdx + 1, weight, 0, weightLen);
// 解析条码
int codeLenIndex = weightLenIdx + weightLen + 2;
if (codeLenIndex < data.Length)
{
int codeLen = Convert.ToInt32(data[codeLenIndex]);
if (codeLenIndex + codeLen + 1 < data.Length)
{
code = new byte[codeLen];
Array.Copy(data, codeLenIndex + 1, code, 0, codeLen);
}
}
}
}
if (ScaleWight != null)
{
double val = 0.0d;
if (weight != null)
{
val = Convert.ToDouble(
System.Text.Encoding.Default.GetString(weight));
}
WeightEventArgs we = new WeightEventArgs(val);
if (code != null)
{
we.BarCode = System.Text.Encoding.Default.GetString(code);
}
we.RealWeight = true;
ScaleWight(this, we);
}
}
/// <summary>
/// 实时获取当前揽件重量
/// </summary>
private void GetWight()
{
// 串口触发事件和线程退出事件
WaitHandle[] handles = new WaitHandle[] { _WightWaitHandle, _ExitHandle };
while (_bLooping)
{
int bWait = WaitHandle.WaitAny(handles);
// 退出线程
if (bWait == 1)
{
break;
}
// 实时称重数据回调
if (Interlocked.Read(ref _RealWightFlag) == 1)
{
if (ScaleWight != null)
{
double tmp = Interlocked.CompareExchange(ref _RealWight, 0, 0);
WeightEventArgs e = new WeightEventArgs(tmp);
e.RealWeight = false;
ScaleWight(this, e);
}
}
if (Interlocked.Read(ref _SampleWeightFlag) == 1)
{
StringBuilder _weightList = new StringBuilder();
for (int i = 0; i < _nSampleCountPerGroup; i++)
{
_weightList.Append(" ");
_weightList.Append(_SampleArray[i].ToString());
}
string weightss = _weightList.ToString();
// 计算样本平均值
Double avg = _SampleArray.Average();
// 排除最小电子称精度误差一下的重量
if (avg < 0.02 || Array.IndexOf(_SampleArray, 0.0) != -1)
{
// 重新取样运算
lock (_LockFlagObj)
{
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
Array.Clear(_SampleArray, 0, _SampleArray.Length);
}
MvBarCode.MvBarCodeGlobalVar.Log.DebugFormat("实时重量：数值太小 return:{0}", weightss);
continue;
}
// 计算样本方差大小
Double sum = 0.0;
foreach (var x in _SampleArray)
{
sum += (x - avg) * (x - avg);
}
// 计算当前样本集合的方差值
Double variance = sum / _nSampleCountPerGroup;
// 校验样本的方差值和最大误差之间的大小关系
if (avg >= 0.03 /*kg*/ && variance <= _MaxDeviation)
{
lock (_LockFlagObj)
{
Interlocked.CompareExchange(ref _SampleFlag, 0, 1);
Interlocked.CompareExchange(ref _RealWightFlag, 0, 1);
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
Array.Clear(_SampleArray, 0, _SampleArray.Length);
}
// 最终数据回调
if (ScaleWight != null)
{
WeightEventArgs e = new WeightEventArgs(avg);
e.RealWeight = true;
ScaleWight(this, e);
}
}
// 获取采样样本
else
{
lock (_LockFlagObj)
{
MvBarCode.MvBarCodeGlobalVar.Log.DebugFormat("实时重量：不符合精度要求数据:{0}", weightss);
Array.Clear(_SampleArray, 0, _SampleArray.Length);
Interlocked.CompareExchange(ref _SampleWeightFlag, 0, 1);
}
}
}
Thread.Sleep(1);
}
}
