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海康相机触发输入输出（含代码）

news 来源：原创 2024/9/21 8:25:01

海康相机触发模式

软件设置：先设置触发模式，在设置触发源。

目的：模拟编码器发送信号触发相机采集，通过一个矩形波信号触发采集图像。

计数器触发

说明书MSV客户端步骤：

在这里插入图片描述

实验过程

1、编码器周长300mm，转一圈产生300个脉冲信号，编码器每产生一个脉冲信号时，代表皮带向前移动300mm/300=1mm.
2、皮带速度为1500mm/s,相机横向视野为750mm,因此相机没秒会拍摄1500/750=2张图像。
3、没经过500ms或者750/1mm=750个脉冲，拍一张图像。
4、程序上，收到一个编码器的脉冲信号，变量自增1，当变量的值可以被750整除时，进行采集。

实际客户端步骤

在这里插入图片描述

接线

绿色接地线，黄色接+，灰色接电源地，橙色接电源正极。

程序代码

三部分代码:

//回调函数
void __stdcall ImageCallBackEx(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser)
{MVCamera* camera;camera = (MVCamera*)pUser;// 图像转换信息MV_CC_PIXEL_CONVERT_PARAM stConvertParam = {0};stConvertParam.nWidth = pFrameInfo->nWidth; // image widthstConvertParam.nHeight = pFrameInfo->nHeight; // image heightstConvertParam.pSrcData = pData; // input data bufferstConvertParam.nSrcDataLen = pFrameInfo->nFrameLen; // input data sizestConvertParam.enSrcPixelType = pFrameInfo->enPixelType; // input pixel formatstConvertParam.enDstPixelType = PixelType_Gvsp_BGR8_Packed; // output pixel formatstConvertParam.pDstBuffer =  (unsigned char*)malloc(pFrameInfo->nWidth * pFrameInfo->nHeight * 3); // output data bufferstConvertParam.nDstBufferSize =  pFrameInfo->nWidth * pFrameInfo->nHeight * 3; // output buffer sizeMV_CC_ConvertPixelType(camera->hDevHandle, &stConvertParam);int nRet = camera->convertPix(stConvertParam);if (MV_OK != nRet){qDebug() << "图像格式转化错误";}camera->nowImage = cv::Mat(cv::Size(4096, 3000), CV_8UC3, stConvertParam.pDstBuffer).clone();//修改1624*1240camera->isHaveImage = true;
//    std::cout << "call back" << std::endl;
}
//设置相机配置
int MVCamera::encoderCountGrbbingSetting()
{if (!isConn){qDebug() << "相机未连接";return -1;}if (isStreaming){qDebug() << "相机正在取流，无法设置参数，请先停止取流";return -1;}//设置触发源为开启状态int nRet = MV_CC_SetEnumValueByString(hDevHandle, "TriggerMode", "On");if (MV_OK != nRet){qDebug() << "设置触发模式失败";return -1;}//设置触发源类型nRet = MV_CC_SetEnumValueByString(hDevHandle, "TriggerSource", "Counter0");if (MV_OK != nRet){qDebug() << "设置触发源类型失败";return -1;}//设置计数器控制中的计数器选择nRet = MV_CC_SetEnumValueByString(hDevHandle, "CounterSelector", "Counter0");if (MV_OK != nRet){qDebug() << "设置计数器选择类型失败";return -1;}//设置计数器控制中的计数器事件源nRet = MV_CC_SetEnumValueByString(hDevHandle, "CounterEventSource", "Line0");if (MV_OK != nRet){qDebug() << "设置计数器事件源选择类型失败";return -1;}nRet = MV_CC_SetEnumValueByString(hDevHandle, "CounterResetSource", "Off");if (MV_OK != nRet){qDebug() << "设置计数器复位原类型失败";return -1;}nRet = MV_CC_SetIntValue(hDevHandle,"CounterValue",500);if (MV_OK != nRet){qDebug() << "设置计数器复位原类型失败";return -1;}// 设置回调函数nRet = MV_CC_RegisterImageCallBackEx(hDevHandle, ImageCallBackEx, this);if (MV_OK != nRet){qDebug() << "设置回调函数失败";return -1;}unsigned int nImageNodeNum = 2;// 设置缓存图像个数nRet = MV_CC_SetImageNodeNum(hDevHandle, nImageNodeNum);if (MV_OK != nRet){qDebug() << "设置相机缓存成功";return -1;}nRet = MV_CC_SetGrabStrategy(hDevHandle, MV_GrabStrategy_LatestImagesOnly);//仅从输出缓存列表中获取最新的一帧图像，同时清空输出缓存列表if (MV_OK != nRet){qDebug() << "设置相机取图策略成功";}qDebug() << "主动取流设置成功";return 0;
}
//打开相机
int MVCamera::startStreaming()
{if (!isConn){qDebug() << "相机未连接";return -1;}int nRet = nRet = MV_CC_StartGrabbing(hDevHandle);if (MV_OK != nRet) //判断是否开始采集图像{qDebug() << "相机开始采集图像失败";return -1;}qDebug() << "相机开始拉流";isStreaming = true;return 0;
}

导入文件到相机以及导出相机文件

#include <stdio.h>
#include <Windows.h>
#include <process.h>
#include <conio.h>
#include "MvCameraControl.h"unsigned int g_nMode = 0;
int g_nRet = MV_OK;
// Wait for key press
void WaitForKeyPress(void)
{while(!_kbhit()){Sleep(10);}_getch();
}bool PrintDeviceInfo(MV_CC_DEVICE_INFO* pstMVDevInfo)
{if (NULL == pstMVDevInfo){printf("The Pointer of pstMVDevInfo is NULL!\n");return false;}if (pstMVDevInfo->nTLayerType == MV_GIGE_DEVICE){int nIp1 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24);int nIp2 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16);int nIp3 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8);int nIp4 = (pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff);// print current ip and user defined nameprintf("CurrentIp: %d.%d.%d.%d\n" , nIp1, nIp2, nIp3, nIp4);printf("UserDefinedName: %s\n\n" , pstMVDevInfo->SpecialInfo.stGigEInfo.chUserDefinedName);}else if (pstMVDevInfo->nTLayerType == MV_USB_DEVICE){printf("UserDefinedName: %s\n", pstMVDevInfo->SpecialInfo.stUsb3VInfo.chUserDefinedName);printf("Serial Number: %s\n", pstMVDevInfo->SpecialInfo.stUsb3VInfo.chSerialNumber);printf("Device Number: %d\n\n", pstMVDevInfo->SpecialInfo.stUsb3VInfo.nDeviceNumber);}else{printf("Not support.\n");}return true;
}static  unsigned int __stdcall ProgressThread(void* pUser)
{int nRet = MV_OK;MV_CC_FILE_ACCESS_PROGRESS stFileAccessProgress = {0};while(1){// Get progress of file accessnRet = MV_CC_GetFileAccessProgress(pUser, &stFileAccessProgress);printf("State = 0x%x,Completed = %I64d,Total = %I64d\r\n",nRet,stFileAccessProgress.nCompleted,stFileAccessProgress.nTotal);if (nRet != MV_OK || (stFileAccessProgress.nCompleted != 0 && stFileAccessProgress.nCompleted == stFileAccessProgress.nTotal)){break;}Sleep(50);}return 0;
}static  unsigned int __stdcall FileAccessThread(void* pUser)
{MV_CC_FILE_ACCESS stFileAccess = {0};stFileAccess.pUserFileName = "UserSet1.bin";stFileAccess.pDevFileName = "UserSet1";if (1 == g_nMode){// Read modeg_nRet = MV_CC_FileAccessRead(pUser, &stFileAccess);if (MV_OK != g_nRet){printf("File Access Read fail! nRet [0x%x]\n", g_nRet);}}else if (2 == g_nMode){// Write modeg_nRet = MV_CC_FileAccessWrite(pUser, &stFileAccess);if (MV_OK != g_nRet){printf("File Access Write fail! nRet [0x%x]\n", g_nRet);}}return 0;
}int main()
{int nRet = MV_OK;void* handle = NULL;do {// Enum deviceMV_CC_DEVICE_INFO_LIST stDeviceList;memset(&stDeviceList, 0, sizeof(MV_CC_DEVICE_INFO_LIST));nRet = MV_CC_EnumDevices(MV_GIGE_DEVICE | MV_USB_DEVICE, &stDeviceList);if (MV_OK != nRet){printf("Enum Devices fail! nRet [0x%x]\n", nRet);break;}if (stDeviceList.nDeviceNum > 0){for (unsigned int i = 0; i < stDeviceList.nDeviceNum; i++){printf("[device %d]:\n", i);MV_CC_DEVICE_INFO* pDeviceInfo = stDeviceList.pDeviceInfo[i];if (NULL == pDeviceInfo){break;} PrintDeviceInfo(pDeviceInfo);            }  } else{printf("Find No Devices!\n");break;}printf("Please Input camera index:");unsigned int nIndex = 0;scanf_s("%d", &nIndex);if (nIndex >= stDeviceList.nDeviceNum){printf("Input error!\n");break;}// Select device and create handlenRet = MV_CC_CreateHandle(&handle, stDeviceList.pDeviceInfo[nIndex]);if (MV_OK != nRet){printf("Create Handle fail! nRet [0x%x]\n", nRet);break;}// Open devicenRet = MV_CC_OpenDevice(handle);if (MV_OK != nRet){printf("Open Device fail! nRet [0x%x]\n", nRet);break;}// Read modeg_nMode = 1;printf("Read to file.\n");unsigned int nThreadID = 0;void* hReadHandle = (void*) _beginthreadex( NULL , 0 , FileAccessThread , handle, 0 , &nThreadID );if (NULL == hReadHandle){break;}Sleep(5);nThreadID = 0;void* hReadProgressHandle = (void*) _beginthreadex( NULL , 0 , ProgressThread , handle, 0 , &nThreadID );if (NULL == hReadProgressHandle){break;}WaitForMultipleObjects(1, &hReadHandle, TRUE, INFINITE);WaitForMultipleObjects(1, &hReadProgressHandle, TRUE, INFINITE);if (MV_OK == g_nRet){printf("File Access Read Success!\n");}printf("\n");// Write modeg_nMode = 2;printf("Write from file.\n");nThreadID = 0;void* hWriteHandle = (void*) _beginthreadex( NULL , 0 , FileAccessThread , handle, 0 , &nThreadID );if (NULL == hWriteHandle){break;}Sleep(5);nThreadID = 0;void* hWriteProgressHandle = (void*) _beginthreadex( NULL , 0 , ProgressThread , handle, 0 , &nThreadID );if (NULL == hWriteProgressHandle){break;}WaitForMultipleObjects(1, &hWriteHandle, TRUE, INFINITE);WaitForMultipleObjects(1, &hWriteProgressHandle, TRUE, INFINITE);if (MV_OK == g_nRet){printf("File Access Write Success!\n");}// Close devicenRet = MV_CC_CloseDevice(handle);if (MV_OK != nRet){printf("ClosDevice fail! nRet [0x%x]\n", nRet);break;}// Destroy handlenRet = MV_CC_DestroyHandle(handle);if (MV_OK != nRet){printf("Destroy Handle fail! nRet [0x%x]\n", nRet);break;}} while (0);if (nRet != MV_OK){if (handle != NULL){MV_CC_DestroyHandle(handle);handle = NULL;}}printf("Press a key to exit.\n");WaitForKeyPress();return 0;
}