jisco_winform_wzjl/CarLocalMeter/OptionCls/CarNoCls.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CarLocalMeter
{
    /// <summary>
    /// 摄像头车号获取
    /// </summary>
    public class CarNoCls
    {
        #region
        private bool m_bInitSDK = false;
        private uint iLastErr = 0;
        private Int32 m_lUserID = -1;
        private Int32 m_lRealHandle = -1;
        //int iFileNumber = 0;
        private int[] iChannelNum = new int[96];
        private Int32[] m_lAlarmHandle = new Int32[200];

        private CHCNetSDK.MSGCallBack_V31 m_falarmData_V31 = null;
        private CHCNetSDK.NET_DVR_DEVICEINFO_V30 DeviceInfo;
        public delegate void MyDebugInfo(string str);
        #endregion

        public CarNoCls()
        {
            m_bInitSDK = CHCNetSDK.NET_DVR_Init();
            if (m_bInitSDK == false)
            {
                MessageBox.Show("NET_DVR_Init error!");
                return;
            }
            else
            {
                //保存SDK日志 To save the SDK log
                CHCNetSDK.NET_DVR_SetLogToFile(3, "C:\\SdkLog\\", true);
                for (int i = 0; i < 64; i++)
                {
                    iChannelNum[i] = -1;
                }

                //设置报警回调函数
                if (m_falarmData_V31 == null)
                {
                    m_falarmData_V31 = new CHCNetSDK.MSGCallBack_V31(MsgCallback_V31);
                }
                CHCNetSDK.NET_DVR_SetDVRMessageCallBack_V31(m_falarmData_V31, IntPtr.Zero);
            }
        }

        public bool MsgCallback_V31(int lCommand, ref CHCNetSDK.NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser)
        {
            //通过lCommand来判断接收到的报警信息类型，不同的lCommand对应不同的pAlarmInfo内容
            AlarmMessageHandle(lCommand, ref pAlarmer, pAlarmInfo, dwBufLen, pUser);

            return true; //回调函数需要有返回，表示正常接收到数据
        }

        public void AlarmMessageHandle(int lCommand, ref CHCNetSDK.NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser)
        {
            if (lCommand == CHCNetSDK.COMM_ITS_PLATE_RESULT) 
            {
                ProcessCommAlarm_ITSPlate(ref pAlarmer, pAlarmInfo, dwBufLen, pUser);
            }
        }

        
        private void ProcessCommAlarm_ITSPlate(ref CHCNetSDK.NET_DVR_ALARMER pAlarmer, IntPtr pAlarmInfo, uint dwBufLen, IntPtr pUser)
        {
            CHCNetSDK.NET_ITS_PLATE_RESULT struITSPlateResult = new CHCNetSDK.NET_ITS_PLATE_RESULT();
            struITSPlateResult = (CHCNetSDK.NET_ITS_PLATE_RESULT)Marshal.PtrToStructure(pAlarmInfo, typeof(CHCNetSDK.NET_ITS_PLATE_RESULT));
            uint dwSize = (uint)Marshal.SizeOf(struITSPlateResult);
            

            //上传结果
            string stringPlateLicense = System.Text.Encoding.GetEncoding("GBK").GetString(struITSPlateResult.struPlateInfo.sLicense).TrimEnd('\0');
            string stringAlarm = "抓拍上传，" + "车牌：" + stringPlateLicense + "，车辆序号：" + struITSPlateResult.struVehicleInfo.dwIndex;
            CacleCls.voicCarNo = stringPlateLicense.Replace("黄", "").Replace("蓝", "").Replace("绿", "").Replace("白", "");
            DebugInfo(stringAlarm);
        }

        public void Login()
        {
            if (string.IsNullOrEmpty(AppConfigCache.voiceCarNoIp) || string.IsNullOrEmpty(AppConfigCache.voiceCarNoUid) || string.IsNullOrEmpty(AppConfigCache.voiceCarNoPwd))
            {
                DebugInfo("请先载入摄像头信息");
            }

            if (m_lUserID < 0)
            {
                string DVRIPAddress = AppConfigCache.voiceCarNoIp; //设备IP地址或者域名 Device IP
                Int16 DVRPortNumber = (Int16)AppConfigCache.voiceCarNoPort; //port
                string DVRUserName = AppConfigCache.voiceCarNoUid;//设备登录用户名 User name to login
                string DVRPassword = AppConfigCache.voiceCarNoPwd;//设备登录密码 Password to login

                //登录设备 Login the device
                m_lUserID = CHCNetSDK.NET_DVR_Login_V30(DVRIPAddress, DVRPortNumber, DVRUserName, DVRPassword, ref DeviceInfo);
                if (m_lUserID < 0)
                {
                    iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    //登录失败，输出错误号 Failed to login and output the error code
                    DebugInfo($"NET_DVR_Login_V30 failed, error code= {iLastErr}");
                    return;
                }
                else
                {
                    //登录成功
                    DebugInfo("NET_DVR_Login_V30 succ!");
                    SetAlarm();
                }
            }
        }

        /// <summary>
        /// 登录后进行布防，布防后才能触发获取车号的功能
        /// </summary>
        public void SetAlarm() 
        {
            CHCNetSDK.NET_DVR_SETUPALARM_PARAM struAlarmParam = new CHCNetSDK.NET_DVR_SETUPALARM_PARAM();
            struAlarmParam.dwSize = (uint)Marshal.SizeOf(struAlarmParam);
            struAlarmParam.byLevel = 1; //0- 一级布防,1- 二级布防
            struAlarmParam.byAlarmInfoType = 1;//智能交通设备有效，新报警信息类型
            struAlarmParam.byFaceAlarmDetection = 1;//1-人脸侦测

            m_lAlarmHandle[m_lUserID] = CHCNetSDK.NET_DVR_SetupAlarmChan_V41(m_lUserID, ref struAlarmParam);
            if (m_lAlarmHandle[m_lUserID] < 0)
            {
                iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                string strErr = "布防失败，错误号：" + iLastErr; //布防失败，输出错误号
                DebugInfo(strErr);
            }
            else
            {
                //"布防成功"
                DebugInfo("布防成功");
            }
        }



        public void LoginOut()
        {
            //注销登录 Logout the device
            if (m_lRealHandle >= 0)
            {
                DebugInfo("Please stop live view firstly"); //登出前先停止预览 Stop live view before logout
                return;
            }


            if (m_lAlarmHandle[m_lUserID] >= 0)
            {
                if (!CHCNetSDK.NET_DVR_CloseAlarmChan_V30(m_lAlarmHandle[m_lUserID]))
                {
                    iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    string strErr = "撤防失败，错误号：" + iLastErr;
                    DebugInfo(strErr);
                }
                else
                {
                    m_lAlarmHandle[m_lUserID] = -1;
                }
            }

            if (!CHCNetSDK.NET_DVR_Logout(m_lUserID))
            {
                iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                DebugInfo($"NET_DVR_Logout failed, error code= {iLastErr}");
                return;
            }
            DebugInfo("NET_DVR_Logout succ!");
            m_lUserID = -1;

            //程序退出的时候释放资源
            CHCNetSDK.NET_DVR_Cleanup();
        }

        protected void DebugInfo(string strMsg)
        {
            try
            {
                string m_szRunPath;
                m_szRunPath = System.Environment.CurrentDirectory;
                if (System.IO.Directory.Exists(m_szRunPath + "\\log") == false)
                {
                    System.IO.Directory.CreateDirectory(m_szRunPath + "\\log");
                }
                string strDate = System.DateTime.Now.ToString("yyyyMMdd");
                string strPathFile = m_szRunPath + "\\log\\" + strDate;
                if (!Directory.Exists(strPathFile))//如果不存在就创建file文件夹
                {
                    Directory.CreateDirectory(strPathFile);
                }
                System.IO.TextWriter tw = new System.IO.StreamWriter(strPathFile + "\\视频_" + strDate + ".log", true);

                tw.WriteLine(System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
                tw.WriteLine(strMsg);
                tw.WriteLine("\r\n");

                tw.Close();
            }
            catch { }
        }
    }
}