采集WINCE设备GPS数据

来源：互联网发布：广电网络电视没有信号编辑：程序博客网时间：2024/04/28 19:09
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Threading;using System.IO;namespace getgpsdata{    public partial class Form1 : Form    {        private delegate void FlushClient();//代理        public Form1()        {            InitializeComponent();        }        Thread Online;        private void btbegin_Click(object sender, EventArgs e)        {            if (!spgps.IsOpen)                spgps.Open();            spgps.DiscardInBuffer();//清除输入缓冲区            spgps.DiscardOutBuffer();//清除输出缓冲区            Online = new Thread(CrossThreadFlush);            Online.IsBackground = true;            Online.Start();        }        private void CrossThreadFlush()        {            while (true)            {                ThreadFunction();                //将sleep和无限循环放在等待异步的外面                //Thread.Sleep(7500);   //30秒                //Thread.Sleep(3750); //15秒                Thread.Sleep(1250);   //5秒               // spgps.DiscardInBuffer();            }        }        private void ThreadFunction()        {            if (this.txtdata.InvokeRequired)//等待异步            {                FlushClient fc = new FlushClient(ThreadFunction);                this.Invoke(fc);//通过代理调用刷新方法            }            else            {                string record = spgps.ReadLine();                if (record.StartsWith("$GPRMC"))                {                    txtdata.Text += record+"\n";                    // 设置光标位置到文本最后                     txtdata.SelectionStart = txtdata.TextLength;                    // 随文本滚动                     txtdata.ScrollToCaret();                    spgps.DiscardInBuffer();                }            }        }        private void btstop_Click(object sender, EventArgs e)        {            //string gpsFile = "1秒" + DateTime.Now.ToString().Replace(@"/", @"-").Replace(@"\", @"-").Replace(@":", @"-") + ".txt";            string gpsFile = "5秒" + DateTime.Now.ToString().Replace(@"/", @"-").Replace(@"\", @"-").Replace(@":", @"-") + ".txt";            //string gpsFile = "15秒" + DateTime.Now.ToString().Replace(@"/", @"-").Replace(@"\", @"-").Replace(@":", @"-") + ".txt";            //string gpsFile = "30秒" + DateTime.Now.ToString().Replace(@"/", @"-").Replace(@"\", @"-").Replace(@":", @"-") + ".txt";            StreamWriter swFromFile = new StreamWriter("\\ResidentFlash\\" + gpsFile);            swFromFile.Write(txtdata.Text);            swFromFile.Flush();            swFromFile.Close();            this.Close();            try            {                Online.Abort(Online);            }            catch (System.Exception ex)            {                MessageBox.Show(ex.ToString());            }            try            {                if (spgps.IsOpen)                {                    spgps.Close();                }            }            catch (System.Exception ex)            {                MessageBox.Show(ex.ToString());            }        }    }}