public void releaseDevice()
{
if (cfgPara.hDevice != (IntPtr)(-1))
{
NET2991B.NET2991B_AI_StopTask(cfgPara.hDevice);
NET2991B.NET2991B_DEV_Release(cfgPara.hDevice);
cfgPara.hDevice = (IntPtr)(-1);
}
}
public bool start()
{
Int32 dwChanCnt = 0;
Int32 nIndex = 0;
for (nIndex = 0; nIndex < NET2991B.NET2991B_MAX_CHANNELS; nIndex++)
{
if (cfgPara.BAIParam.CHParam[nIndex].bChannelEn == 1)
{
dwChanCnt++;
}
}
// 实际总共需要读取的数据数
cfgPara.dwRealReadLen = 2 * dwChanCnt * cfgPara.nReadLength;
// 初始化
cfgPara.nSampStatus = UserDef.CMD_UNCPT;
cfgPara.dwReadDataSize = 0;
cfgPara.bAIStatus = 0;
// 读取数据的长度
cfgPara.dwFrameLen = UserDef.LMT_FRMCNT;
// 启动采样
if (NET2991B.NET2991B_AI_StartTask(cfgPara.hDevice) == 0)
{
Console.WriteLine("启动任务失败!");
if (cfgPara.hDevice != (IntPtr)(-1))
{
NET2991B.NET2991B_AI_StopTask(cfgPara.hDevice);
NET2991B.NET2991B_DEV_Release(cfgPara.hDevice);
cfgPara.hDevice = (IntPtr)(-1);
}
return(false);
}
needStop = false;
Thread tDataRead = new Thread(ReadDataFun);
tDataRead.Start();
return(true);
}
public bool InitDevice(string strIP, string strDevPort, string strLocalPort, MsgUpdateDelegate std)
{
Int32 nIndex = 0;
Int32 ipaddr = inet_addr(strIP);
cfgPara.BAIParam.nDeviceIP = (UInt32)(System.Net.IPAddress.NetworkToHostOrder(ipaddr));
cfgPara.BAIParam.nDevicePort = Convert.ToUInt16(strDevPort);
cfgPara.BAIParam.nLocalPort = Convert.ToUInt16(strLocalPort);
cfgPara.BAIParam.CHParam[0].bChannelEn = 0;
for (nIndex = 1; nIndex < 17; nIndex++)
{
cfgPara.BAIParam.CHParam[nIndex].bChannelEn = 1;
cfgPara.BAIParam.CHParam[nIndex].nSampleRange = NET2991B.NET2991B_AI_SAMPRANGE_N10_P10V;
cfgPara.BAIParam.CHParam[nIndex].nRefGround = NET2991B.NET2991B_AI_REFGND_RSE;
}
cfgPara.BAIParam.fSampleRate = 500000;
cfgPara.BAIParam.nSampleMode = NET2991B.NET2991B_AI_SAMPMODE_CONTINUOUS;
cfgPara.BAIParam.nSampsPerChan = 102400;
cfgPara.BAIParam.nClockSource = NET2991B.NET2991B_AI_CLOCKSRC_LOCAL;
cfgPara.BAIParam.nReserved0 = 0;
cfgPara.BAIParam.nTriggerSource = NET2991B.NET2991B_AI_TRIGSRC_NONE;
cfgPara.BAIParam.nTriggerDir = NET2991B.NET2991B_AI_TRIGDIR_FALLING;
cfgPara.BAIParam.fTriggerLevel = 10;
cfgPara.BAIParam.nDelaySamps = 0;
cfgPara.BAIParam.nReTriggerCount = 1;
cfgPara.BAIParam.bMasterEn = 0;
cfgPara.BAIParam.nReserved1 = 0;
cfgPara.BAIParam.nReserved2 = 0;
cfgPara.nReadOffset = 0;
cfgPara.nReadLength = 10240000;
cfgPara.hDevice = (IntPtr)(-1);
UInt16 nDataTranDir = NET2991B.NET2991B_AI_TRANDIR_CLIENT;
NET2991B.NET2991B_DEV_SetSendSpeed(3);
if (cfgPara.hDevice != (IntPtr)(-1))
{
NET2991B.NET2991B_AI_StopTask(cfgPara.hDevice);
NET2991B.NET2991B_DEV_Release(cfgPara.hDevice);
}
// 创建设备
cfgPara.hDevice = NET2991B.NET2991B_DEV_Create(cfgPara.BAIParam.nDeviceIP,
cfgPara.BAIParam.nDevicePort,
cfgPara.BAIParam.nLocalPort,
nDataTranDir, 0.2, 0.2, 2);
bool isSuccess = true;
mstd = std;
if (cfgPara.hDevice == (IntPtr)(-1))
{
mstd("2991A创建设备失败!");
isSuccess = false;
}
// 判断是否连接
else if (NET2991B.NET2991B_DEV_IsLink(cfgPara.hDevice) == 0)
{
mstd("2991A设备没有连接!");
isSuccess = false;
}
// 初始化设备
else if (NET2991B.NET2991B_AI_InitTask(cfgPara.hDevice, ref cfgPara.BAIParam, (IntPtr)(-1)) == 0)
{
mstd("2991A初始化设备失败!");
isSuccess = false;
} // 不保存文件
else if (NET2991B.NET2991B_AI_IsSaveFile(cfgPara.hDevice, 0) == 0)
{
mstd("2911A设置文件保存失败!");
isSuccess = false;
}
// 清除缓存
else if (NET2991B.NET2991B_AI_ClearBuffer(cfgPara.hDevice) == 0)
{
mstd("2991A清除缓存失败!");
}
if (!isSuccess && cfgPara.hDevice != (IntPtr)(-1))
{
NET2991B.NET2991B_AI_StopTask(cfgPara.hDevice);
NET2991B.NET2991B_DEV_Release(cfgPara.hDevice);
cfgPara.hDevice = (IntPtr)(-1);
return(false);
}
return(true);
}
static void ReadDataFun()
{
UInt16[] nAIArray = new UInt16[2048];
UInt32 dwReadChan = 0;
UInt16[,] buffer = new UInt16[16, 500000]; //16 channel, 500k/s
UInt16[] threaholdMarker = new UInt16[16]; // mark is need to save
UInt64 bufferCount = 0;
UInt32 indexPerChannel = 0;
UInt32 dwReadSampsPerChan = 0;
UInt32 dwSampsPerChanRead = 0;
UInt32 dwAvailSampsPerChan = 0;
double fTimeOut = -1.0;
Int32 nIndex = 0;
Single fVoltData = 0.0F;
Single fPerLsb = 0.0F;
Int16 tmp = 0;
switch (cfgPara.BAIParam.CHParam[nIndex].nSampleRange)
{
case NET2991B.NET2991B_AI_SAMPRANGE_N10_P10V:
fPerLsb = 20000.0F / 65536;
break;
case NET2991B.NET2991B_AI_SAMPRANGE_N5_P5V:
fPerLsb = 10000.0F / 65536;
break;
case NET2991B.NET2991B_AI_SAMPRANGE_N2D5_P2D5V:
fPerLsb = 5000.0F / 65536;
break;
case NET2991B.NET2991B_AI_SAMPRANGE_N1D25_P1D25V:
fPerLsb = 2500.0F / 65536;
break;
default:
break;
}
// 根据用户设置的读取长度设置每通道数据的读取长度
UInt32 nChanSize = (uint)(cfgPara.nReadLength * 2);
// 读数据
while (true)
{
try
{
if (needStop)
{
break;
}
dwReadSampsPerChan = 0;
// 连续采集模式下数据排列顺序为16路DI第一个采样点、CH0第一个采样点、CH1第一个采样点、CH2第一采样点.....CH15第一个采样点、16路DI第二个采样点...
if (NET2991B.NET2991B_AI_ReadBinary(cfgPara.hDevice, ref dwReadChan, nAIArray, dwReadSampsPerChan, ref dwSampsPerChanRead, ref dwAvailSampsPerChan, fTimeOut) == 0)
{
if (needStop)
{
break;
}
continue;
}
if (needStop)
{
break;
}
//16通道，采集够1秒数据在处理
bufferCount += dwSampsPerChanRead;
if (bufferCount < 8000000)
{
for (UInt16 n = 0; n < 1000; n++)
{
if (((n + 1) << 4) > dwSampsPerChanRead)
{
break;
}
int bn = n << 4;
for (int i = 8; i < 16; i++)//A0-A7 没有接收据
{
buffer[i, indexPerChannel] = nAIArray[bn + i];
if (threaholdMarker[i] == 0 && (nAIArray[bn + i] > UserDef.d9003[i].max_th ||
nAIArray[bn + i] < UserDef.d9003[i].min_th))
{
threaholdMarker[i] = 1;
}
if (nAIArray[bn + i] > UserDef.d9003[i].max)
{
UserDef.d9003[i].max = nAIArray[bn + i];
}
if (nAIArray[bn + i] < UserDef.d9003[i].min)
{
UserDef.d9003[i].min = nAIArray[bn + i];
}
}
indexPerChannel++;
}
}
else
{
bufferCount = 0;
indexPerChannel = 0;
k_length = 0;
TimeSpan ts = DateTime.Now - k_lastSavedFileTime;
UInt16 patternChecker = 0;
for (UInt16 i = 8; i < 16; i++)
{
UserDef.d9003[i].max = 0; //归0，重新计算
UserDef.d9003[i].min = 65536;
if (threaholdMarker[i] > 0)
{
k_buffer[k_length] = i;
k_length++;
for (int j = 0; j < 500000; j++)
{
k_buffer[k_length] = buffer[i, j];
k_length++;
}
patternChecker |= (UInt16)(1 << i);
}
if (ts.TotalSeconds > 6000)
{
threaholdMarker[i] = 1;
}
else
{
threaholdMarker[i] = 0;
}
}
if (k_length > 0 && (patternChecker != k_last_pattern_check || ts.TotalSeconds > k_timer_threahold))
{
Thread tDataSave = new Thread(saveFile);
tDataSave.Start();
k_lastSavedFileTime = DateTime.Now;
if (ts.TotalSeconds < 6000)
{
k_last_pattern_check = patternChecker;
}
if (ts.TotalSeconds < 6000)
{
k_timer_threahold = k_timer_threahold * 2;
}
else if (ts.TotalSeconds > 20000)
{
k_timer_threahold = 1;
}
}
}
}
catch (Exception ex)
{
}
}
if (cfgPara.hDevice != (IntPtr)(-1))
{
Thread.Sleep(500);
NET2991B.NET2991B_AI_StopTask(cfgPara.hDevice);
NET2991B.NET2991B_DEV_Release(cfgPara.hDevice);
cfgPara.hDevice = (IntPtr)(-1);
}
}