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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Mesnac.Compressor.Entity;
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using Mesnac.Compressor.Unity;
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namespace SocketProcess
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{
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public class DataHandler
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{
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private const int EpcLengh = 24;
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private string msg;
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private object sysanc = new object();
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//单次读取标签超时时间：3000毫秒
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private string TimeOut =Common.Instance.ReadTimeOut;
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public delegate void recieveData(FrameFormat frame);
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public recieveData recieveEvent;
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public delegate void RecieveReturn(string ReturnString);
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public RecieveReturn returnEvent;
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public DataHandler()
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{
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}
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#region 数据接收
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public FrameFormat DataAnylysis(object o)
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{
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string data = o as string;
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FrameFormat frame = new FrameFormat();
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try
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{
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if (data.Length < 16)
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{
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frame.CompleteFlag = false;
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}
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else
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{
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frame.CompleteFlag = true;
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}
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//Trim只能将字符的前端和后端空格去掉，但是不能去掉中间的
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msg = data.Replace(" ", "");
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//获取帧头
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frame.CompleteFlag = headSub(frame);
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//获取帧尾
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frame.CompleteFlag = TailSub(frame);
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//获取帧类型
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TypeSub(frame);
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//判断长度
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frame.CompleteFlag = LenghSub(frame);
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//获取校验和
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CheckCodeSub(frame);
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//检验
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frame.CompleteFlag = Check(frame);
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//如果自动模式
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if (frame.CompleteFlag)
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{
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//Console.WriteLine("数据校验成功");
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ExcuteMethod(frame);
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}
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}
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catch (Exception e)
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{
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frame.CompleteFlag = false;
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}
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return frame;
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}
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/// <summary>
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/// 根据类型调用具体方法
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/// </summary>
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private void ExcuteMethod(FrameFormat frame)
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{
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switch (frame.Type)
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{
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//Epc过滤应答
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case "AD":
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FlatMode(frame);
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break;
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//主动上传模式
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case "BB":
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EPCData(frame);
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break;
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//单次读取模式
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case "AF":
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ReadOneTagEpc(frame);
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break;
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default:
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//发送自动上报模式
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break;
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}
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}
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#region 帧数据解析公用
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private bool headSub(FrameFormat frame)
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{
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string head = msg.Substring(0, 4).ToUpper();
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frame.Framehead = head;
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return head.Equals("A55A");
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}
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private bool LenghSub(FrameFormat frame)
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{
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string length = msg.Substring(4, 4);
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//获取高位
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string lengthHigh = length.Substring(0, 2);
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//获取低位
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string LengthLow = length.Substring(2, 2);
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int high = Convert.ToInt32(lengthHigh, 16);
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int low = Convert.ToInt32(LengthLow, 16);
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frame.length = high * 256 + low;
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// Mesnac.Log.LogService.Instance.Debug("原数据高位:" + lengthHigh + "；原数据低位位:" + LengthLow + "；转换高位：" + high.ToString() + "；转换低位：" + low.ToString() + "；转换后数据：" + frame.length.ToString());
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return (frame.length == msg.Length / 2);
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}
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private void TypeSub(FrameFormat frame)
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{
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string type = msg.Substring(8, 2).ToUpper();
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frame.Type = type;
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}
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private void CheckCodeSub(FrameFormat frame)
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{
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if (frame.length < 3)
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{
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return;
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}
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frame.CheckCode = msg.Substring(msg.Length - 6, 2);
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}
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private bool TailSub(FrameFormat frame)
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{
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string Tail = msg.Substring(msg.Length - 4, 4).ToUpper();
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frame.FrameTail = Tail;
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return Tail.Equals("0D0A");
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}
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private bool Check(FrameFormat frame)
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{
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//获取校验位，除去帧头和帧尾 帧头四位，帧尾四位,校验码两位
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string data = msg.Substring(4, msg.Length - 10);
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int CRC = GetCheckCode(data);
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return (CRC == Convert.ToInt32(frame.CheckCode, 16));
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}
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private int GetCheckCode(string data)
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{
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//string data = messge.Substring(4, msg.Length - 10);
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int num = data.Length / 2;
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int CRC = 0;
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CRC = Convert.ToInt32(data.Substring(0, 2), 16);
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for (int i = 1; i < num; i++)
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{
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int word = Convert.ToInt32(data.Substring(i * 2, 2), 16);
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CRC = CRC ^ word;
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}
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return CRC;
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}
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#endregion
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/// <summary>
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/// 自动上传模式读取EPC天线等数据
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/// </summary>
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/// <param name="frame"></param>
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private void EPCData(FrameFormat frame)
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{
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//如果没有数据就返回，不够一个EPC的长度
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//这里需要改，单次读标签，没有读到数据也要返回*****************
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//表示空数据
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frame.CompleteFlag = false;
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return;
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if (msg.Length < 16 + 24)
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{
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frame.CompleteFlag = false;
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return;
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}
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int N = msg.Length - 16;
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//获取只有数据帧部分的数据
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string data = msg.Substring(10, N);
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frame.data.PC = data.Substring(0, 4);
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int EPCNum = (data.Length - 12) / EpcLengh;
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for (int i = 0; i < EPCNum; i++)
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{
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string Epc = data.Substring(4 + i * 24, 24);
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frame.data.Epc = Epc;
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}
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frame.data.ANT = data.Substring(data.Length-4, 2);
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//判断是否是当前工位的信息
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//if (frame.data.ANT == "01")
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//{
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// //frame.data.Enable = true;
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//}
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frame.data.IP = data.Substring(data.Length - 2, 2);
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}
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private void ReadOneTagEpc(FrameFormat frame)
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{
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//如果没有数据就返回，不够一个EPC的长度
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//这里需要改，单次读标签，没有读到数据也要返回*****************
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int N = msg.Length - 16;
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//获取只有数据帧部分的数据
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string data = msg.Substring(10, N);
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frame.data.PC = data.Substring(0, 4);
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//表示没有读到数据，epc默认为空
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if (data.Length < 24)
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{
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frame.data.Epc = "";
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}
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else
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{
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int EPCNum = (data.Length - 12) / EpcLengh;
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for (int i = 0; i < EPCNum; i++)
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{
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//不管读到几个标签，这里智取最后一个
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string Epc = data.Substring(4 + i * 24, 24);
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frame.data.Epc = Epc;
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}
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}
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frame.data.ANT = data.Substring(data.Length - 4, 2);
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frame.data.IP = data.Substring(data.Length - 2, 2);
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}
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/// <summary>
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/// 过滤数据解析
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/// </summary>
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/// <param name="frame"></param>
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private void FlatMode(FrameFormat frame)
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{
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if (msg.Length < 20)
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{
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return;
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}
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int N = msg.Length - 16;
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string data = msg.Substring(10, N);
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string result = data.Substring(0, 2);
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frame.data.ANT = data.Substring(2, 2);
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Mesnac.Log.LogService.Instance.Debug("过滤结果：" + result + " 过滤IP" + frame.data.IP + " 过滤天线" + frame.data.ANT);
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}
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#endregion
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#region 数据发送
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public void sendData(string epc, string type)
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{
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}
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//设置EPC过滤 发送string
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public string FrameConbine(DataFormat Epcdata, string type)
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{
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string head = "A55A";
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string length = "0011";
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string data = Epcdata.Epc;
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string Ant = Epcdata.ANT;
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string checkCode = "00";
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string Tail = "0D0A";
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//获取长度
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int len = head.Length + length.Length + type.Length + data.Length + Ant.Length + checkCode.Length + Tail.Length;
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len = len / 2;
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int high = len / 256;
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int low = len % 256;
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length = Convert.ToString(high, 16).PadLeft(2, '0') + Convert.ToString(low, 16);
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//获取checkcode
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StringBuilder sb = new StringBuilder();
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sb.Append(length).Append(type).Append(data).Append(Ant);
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int CRC = GetCheckCode(sb.ToString());
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checkCode = Convert.ToString(CRC, 16).PadLeft(2, '0');
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//获取整个发送的字符串
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sb.Clear();
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sb.Append(head).Append(length).Append(type).Append(data).Append(Ant).Append(checkCode).Append(Tail);
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//string mess = sb.ToString();
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//sb.Clear();
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//int loop = mess.Length / 2;
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//for (int i = 0; i < loop; i++)
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//{
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// sb.Append(mess.Substring(i * 2, 2)).Append(" ");
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//}
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return sb.ToString().Trim().ToLower();
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}
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public string ReadOneStringCombine(string sAnt)
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{
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string head = "A55A";
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string length = "000B";
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//string data = Epcdata.Epc;
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string Ant = sAnt;
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string checkCode = "00";
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string Tail = "0D0A";
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string type = "AE";
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//获取长度
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//int len = head.Length + length.Length + type.Length + TimeOut.Length + Ant.Length + checkCode.Length + Tail.Length;
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//len = len / 2;
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//int high = len / 256;
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//int low = len % 256;
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//length = Convert.ToString(high, 16).PadLeft(2, '0') + Convert.ToString(low, 16);
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//获取checkcode
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StringBuilder sb = new StringBuilder();
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sb.Append(length).Append(type).Append(Ant).Append(TimeOut);
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int CRC = GetCheckCode(sb.ToString());
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checkCode = Convert.ToString(CRC, 16).PadLeft(2, '0');
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//获取整个发送的字符串
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sb.Clear();
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sb.Append(head).Append(length).Append(type).Append(Ant).Append(TimeOut).Append(checkCode).Append(Tail);
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//string mess = sb.ToString();
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//sb.Clear();
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//int loop = mess.Length / 2;
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//for (int i = 0; i < loop; i++)
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//{
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// sb.Append(mess.Substring(i * 2, 2)).Append(" ");
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//}
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return sb.ToString().Trim().ToLower();
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}
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#endregion
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}
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} |