1.海康设备网络SDK下载

下载地址：https://www.hikvision.com/cn/download_more_401.html

下载完毕解压后的目录结构如下：

2.代码实现

通过参考“CH-HCNetSDKV6.0.2.35_build20190411_Win32\Demo示例\3- C# 开发示例\1-实时预览示例代码一”路径下的示例项目，控制海康录像机进行抓拍图片与实时下载录像功能

2.1 算了不贴代码了，这个MarkDown编辑器真tm难用，为什么复制过来的代码变成这样？

2.2 主要代码

2.2.1 Web.config

<appSettings><!--海康摄像机配置--><add key="dvrIp" value="10.14.8.70"/><add key="dvrPort" value="8000"/><add key="dvrUserName" value="admin"/><add key="dvrPassword" value="12345"/><!--图片视频存储路径配置--><add key="picturePath" value="C:\\HYKJ\\Pictures\\"/><add key="videoPath" value="C:\\HYKJ\\Videos\\"/></appSettings>

2.2.2 WebService1.asmx

public static string dvrIp = ConfigurationManager.AppSettings["dvrIp"].ToString(); //录像机IP public static string dvrPort = ConfigurationManager.AppSettings["dvrPort"].ToString(); //录像机端口 public static string dvrUserName = ConfigurationManager.AppSettings["dvrUserName"].ToString(); //录像机用户名 public static string dvrPassword = ConfigurationManager.AppSettings["dvrPassword"].ToString(); //录像机密码public static string picPath = ConfigurationManager.AppSettings["picturePath"].ToString(); //图片存储路径 C:\\HYKJ\\Pictures\\ public static string vidPath = ConfigurationManager.AppSettings["videoPath"].ToString(); //录像存储路径 C:\\HYKJ\\Videos\\/// <summary>/// 海康录像机登录实例/// </summary>private static Int32 m_lUserID = -1;/// <summary>/// 海康错误号/// </summary>private static uint iLastErr = 0;/// <summary>/// 用于接收海康调用接口返回信息/// </summary>private static string str;/// <summary>/// 海康SDK是否初始化/// </summary>private static bool m_bInitSDK = false;/// <summary>/// 海康预览数据回调/// </summary>private static CHCNetSDK.REALDATACALLBACK RealData = null;/// <summary>/// 海康预览集合/// </summary>private static Dictionary<string, Int32> realHandleDic = new Dictionary<string, Int32>();/// <summary>/// 海康录像集合/// </summary>private static Dictionary<string, bool> recordDic = new Dictionary<string, bool>();/// <summary> /// 海康录像机拍照 /// </summary> /// <param name="channelNum">摄像机通道号</param> /// <returns></returns> public bool TakePhoto(C2SJsonMessage c2sjm) {string channelNum = c2sjm.channelNum;string pictureFileName = c2sjm.pictureFileName;DateTime date = DateTime.Now;string year = date.Year.ToString() + "\\";string month = date.Month.ToString() + "\\";string day = date.Day.ToString() + "\\";bool flag = false;string sJpegPicDirectory = picPath + year + month + day;if (!Directory.Exists(sJpegPicDirectory)){Directory.CreateDirectory(sJpegPicDirectory);}//图片保存路径和文件名 C:\\HYKJ\\Pictures\\2019\\08\\08\\jylsh_jccs_hphm_channelNum_1.jpgstring sJpegPicFileName = sJpegPicDirectory + pictureFileName;int lChannel = Int16.Parse(channelNum); //通道号 Channel numberCHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();lpJpegPara.wPicQuality = 0; //图像质量 Image qualitylpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档//JPEG抓图 Capture a JPEG pictureif (!CHCNetSDK.NET_DVR_CaptureJPEGPicture(m_lUserID, lChannel, ref lpJpegPara, sJpegPicFileName)){iLastErr = CHCNetSDK.NET_DVR_GetLastError();str = "NET_DVR_CaptureJPEGPicture failed, error code= " + iLastErr;}else{str = "Successful to capture the JPEG file and the saved file is " + sJpegPicFileName;flag = true;}return flag; }/// <summary> /// 海康录像机开始录像 /// </summary> /// <param name="sVideoFileName">录像保存路径和文件名</param> /// <param name="channelNum">摄像机通道号</param> /// <returns></returns> public bool StartTakeVideo(C2SJsonMessage c2sjm) {/*** 录像的前提是进行了预览，录像的流程应该是：* 1.开始预览* 2.开始录像* 3.结束录像* 4.停止预览* */string channelNum = c2sjm.channelNum;string videoFileName = c2sjm.videoFileName;DateTime date = DateTime.Now;string year = date.Year.ToString() + "\\";string month = date.Month.ToString() + "\\";string day = date.Day.ToString() + "\\";bool flag = false;string sVideoFiledDirectory = vidPath + year + month + day;if (!Directory.Exists(sVideoFiledDirectory)){Directory.CreateDirectory(sVideoFiledDirectory);}//录像保存路径和文件名 C:\\HYKJ\\Videos\\2019\\08\\08\\jylsh_jccs_hphm_channelNum.mp4string sVideoFileName = sVideoFiledDirectory + videoFileName;if (!recordDic.ContainsKey(channelNum)){//强制I帧 Make a I frameint lChannel = Int16.Parse(channelNum); //通道号 Channel numberCHCNetSDK.NET_DVR_MakeKeyFrame(m_lUserID, lChannel);//开始录像 Start recordingif (!CHCNetSDK.NET_DVR_SaveRealData(realHandleDic[channelNum], sVideoFileName)){iLastErr = CHCNetSDK.NET_DVR_GetLastError();str = "NET_DVR_SaveRealData failed, error code= " + iLastErr;}else{recordDic.Add(channelNum, true);flag = true;}}return flag; }/// <summary> /// 海康录像机结束录像 /// </summary> /// <param name="sVideoFileName">录像保存路径和文件名</param> /// <param name="channelNum">摄像机通道号</param> /// <returns></returns> public bool StopTakeVideo(C2SJsonMessage c2sjm) {string channelNum = c2sjm.channelNum;string videoFileName = c2sjm.videoFileName;DateTime date = DateTime.Now;string year = date.Year.ToString() + "\\";string month = date.Month.ToString() + "\\";string day = date.Day.ToString() + "\\";bool flag = false;string sVideoFiledDirectory = vidPath + year + month + day;if (!Directory.Exists(sVideoFiledDirectory)){Directory.CreateDirectory(sVideoFiledDirectory);}//录像保存路径和文件名 C:\\HYKJ\\Videos\\2019\\08\\08\\jylsh_jccs_hphm_channelNum.mp4string sVideoFileName = sVideoFiledDirectory + videoFileName;if (recordDic.ContainsKey(channelNum)){//停止录像 Stop recordingif (!CHCNetSDK.NET_DVR_StopSaveRealData(realHandleDic[channelNum])){iLastErr = CHCNetSDK.NET_DVR_GetLastError();str = "NET_DVR_StopSaveRealData failed, error code= " + iLastErr;}else{HKStopPreview(channelNum);//关闭预览str = "Successful to stop recording and the saved file is " + sVideoFileName;recordDic.Remove(channelNum);flag = true;}}return flag; }

2.2.3 C2SJonsMessage

public class C2SJsonMessage{/// <summary>/// 接口id/// </summary>public string jkid;/// <summary>/// 检验机构编号/// </summary>public string jyjgbh;/// <summary>/// 检验流水号/// </summary>public string jylsh;/// <summary>/// 检测线代号/// </summary>public string jcxdh;/// <summary>/// 检测次数/// </summary>public string jccs;/// <summary>/// 号牌号码/// </summary>public string hphm;/// <summary>/// 号牌种类/// </summary>public string hpzl;/// <summary>/// 车辆识别代号/// </summary>public string clshbh;/// <summary>/// 检验项目/// </summary>public string jyxm;/// <summary>/// 海康录像机摄像机通道号/// </summary>public string channelNum;/// <summary>/// 同一个流水号和检测次数的检测记录调用接口的次数，主要给抓拍接口用，用于区分第几张抓拍图片/// </summary>public string cs;/// <summary>/// 图片文件名称，建议命名规则jylsh_jccs_hphm_channelNum_cs.jpg，且只能是jpg格式/// </summary>public string pictureFileName;/// <summary>/// 视频文件名称，建议命名规则jylsh_jccs_hphm_channelNum.mp4，且只能是mp4格式/// </summary>public string videoFileName;}

3.我的实例资源下载

有兴趣的可以看看，没兴趣的就算了，就是个小例子，反正也没什么技术含量

**下载连接地址：https://download.csdn.net/download/cgs_______/11517139 **

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