解析GPS模拟器发来的串口数据

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Text;
  7 using System.Windows.Forms;
  8 
  9 
 10 using System.IO.Ports;
 11 
 12 
 13 namespace ParseSerialData
 14 {
 15     public partial class Form1 : Form
 16     {
 17         private delegate void dg(string str);
 18         /// <summary>
 19         /// datagridview的数据源
 20         /// </summary>
 21         DataTable dt = new DataTable();
 22 
 23         public Form1()
 24         {
 25             InitializeComponent();
 26             AddColumn();
 27         }
 28 
 29         private void AddColumn()
 30         {
 31             string[] strColumn = { "UTC时间", "纬度", "经度", "GPS状态", "卫星数", "平面精度因子", "天线高度", "海平面分离度", "差分校正时延（秒）", "参考站识别", "校验和" };
 32             foreach (string item in strColumn)
 33             {
 34                 DataColumn dc = new DataColumn(item);
 35                 dt.Columns.Add(dc);
 36             }
 37             dataGridView1.DataSource = dt;
 38         }
 39 
 40         private void Form1_Load(object sender, EventArgs e)
 41         {
 42             string[] Ports = SerialPort.GetPortNames();
 43             foreach (string item in Ports)
 44             {
 45                 comboBoxPort.Items.Add(item);
 46             }
 47             comboBoxPort.SelectedIndex = 0;
 48             SetPortProperty();
 49         }
 50 
 51         private void comboBoxPort_SelectedIndexChanged(object sender, EventArgs e)
 52         {
 53             SetPortProperty();
 54         }
 55 
 56         private void SetPortProperty()
 57         {
 58             serialPort1.PortName = comboBoxPort.SelectedItem.ToString();
 59             serialPort1.Parity = Parity.Odd;
 60             serialPort1.StopBits = StopBits.Two;  
 61         }
 62 
 63         private void btnOpenPort_Click(object sender, EventArgs e)
 64         {
 65             if (serialPort1.PortName == "")
 66             {
 67                 MessageBox.Show("请选择一个端口", "提示信息");
 68             }
 69             else if (!serialPort1.IsOpen)
 70             {
 71                 serialPort1.Open();
 72                 comboBoxPort.Enabled = false;
 73             }  
 74         }
 75 
 76         private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
 77         {
 78             string strMessage = serialPort1.ReadLine();
 79             string subMsg = strMessage.Substring(0, 6);
 80             if (subMsg == "$GPGGA")
 81             {
 82                 string[] temp = ParseGPSMsg(strMessage);
 83                 DataRow dr = dt.NewRow();
 84                 for (int i = 0; i < 11; i++)
 85                 {
 86 
 87                     dr[i] = temp[i];
 88 
 89                 }
 90                 dt.Rows.Add(dr);
 91 
 92             }
 93             dg dg1 = new dg(AppendText);
 94             this.Invoke (dg1, new object[] {strMessage});
 95 
 96         }
 97 
 98         /// <summary>
 99         /// 解析分割字符串
100         /// </summary>
101         /// <param name="message"></param>
102         /// <returns></returns>
103         private string[] ParseGPSMsg(string message)
104         {
105             string[] temp = message.Split(new char[] { ',' });
106             string[] arrMsg = { temp[1],temp [2]+temp [3],temp [4]+ temp [5]
107                                   ,temp [6],temp [7],temp [8],temp [9] +temp [10]
108                                   ,temp [11]+temp [12],temp [13],temp [14].Substring (0,4)
109                                   ,temp [14].Substring (4,3)};
110             //GPSPosition gpsPos = new GPSPosition(arrMsg);
111 
112             return arrMsg;
113         }
114 
115         private void comboBoxPort_DropDown(object sender, EventArgs e)
116         {
117             comboBoxPort.Items.Clear();
118             string[] Ports = SerialPort.GetPortNames();
119             foreach (string item in Ports)
120             {
121                 comboBoxPort.Items.Add(item);
122             }
123             comboBoxPort.SelectedIndex = 0; 
124         }
125         private void AppendText(string Msg)
126         {
127             textBox1.Text = textBox1.Text + Msg;
128             dataGridView1.DataSource = dt;
129             dataGridView1.Refresh();
130         }
131 
132         private void btnClosePort_Click(object sender, EventArgs e)
133         {
134             serialPort1.Close();
135             comboBoxPort.Enabled = true;
136         }
137     }
138 }