Aucma.Scada/Aucma.Scada.Business/GunBusiness.cs

using Aucma.Scada.Model.domain;
using HighWayIot.Common;
using HighWayIot.Config;
using HighWayIot.Log4net;
using HighWayIot.Plc;
using HighWayIot.Repository.service;
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace Aucma.Scada.Business
{
    /// <summary>
    /// 入库任务处理
    /// </summary>
    public sealed class GunBusiness
    {
        private static AppConfig appConfig = AppConfig.Instance;
        private static SerialPort serialPort = new SerialPort();

        #region 单例实现
        private static readonly GunBusiness lazy = new GunBusiness();

        #region 变量定义
        //箱体码
        private static string ShellCode = string.Empty;
        // 内胆码
        private static string LinerCode = string.Empty;
        #endregion 

        /// <summary>
        /// 扫码委托
        /// </summary>
        /// <param name="materialCodeStr"></param>
        /// <param name="ip"></param>
        public delegate void RefreshMaterialCodeStr(string ShellCode, string LinerCode);
        public static event RefreshMaterialCodeStr RefreshMaterialCodeStrEvent;

        public static GunBusiness Instance
        {
            get
            {
                return lazy;
            }
        }
        #endregion



        //初始化串口并启动接收数据
        public static void InstanceSerialPort3()
        {
            try
            {
                string port = System.IO.Ports.SerialPort.GetPortNames().FirstOrDefault();
                //实例化串行端口

                //端口名  注:因为使用的是USB转RS232 所以去设备管理器中查看一下虚拟com口的名字
                serialPort.PortName = port;// portName;
                                           //波特率 霍尼威尔扫码枪115200,普通9600
                serialPort.BaudRate = int.Parse(appConfig.BaudRate); ;
                //奇偶校验
                serialPort.Parity = Parity.None;
                //停止位
                serialPort.StopBits = StopBits.One;
                //数据位
                serialPort.DataBits = 8;
                //忽略null字节
                serialPort.DiscardNull = true;

                //接收事件
                serialPort.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(serialPort1_DataReceived);

                //开启串口
                serialPort.Open();
            }
            catch (Exception ex)
            {


            }
        }

        private static void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            Thread.Sleep(50);
            int nums = serialPort.BytesToRead;
            byte[] receiveBytes = new byte[nums];
            serialPort.Read(receiveBytes, 0, nums);

            StringBuilder sb = new StringBuilder();

            string str = Encoding.ASCII.GetString(receiveBytes).Replace("\r\n", "").Replace("\r", "").Replace("\n", "");
            if (str.Substring(0, 1) == "B")
            {
                ShellCode = str;
            }
            else if (str.Substring(0, 1) == "L")
            {
                LinerCode = str;
            }
            // 业务处理
            if (!string.IsNullOrEmpty(ShellCode) && !string.IsNullOrEmpty(LinerCode))
            {
                // 业务处理，条码绑定
                RefreshMaterialCodeStrEvent?.Invoke(ShellCode, LinerCode);

                // 清空
                ShellCode = string.Empty;
                LinerCode = string.Empty;
            }
            sb.Clear();
        }


    }
}