如何获得纬度和经度的桌面应用程序？ [英] How do I get latitude and longtitude for desktop application?

问题描述

我能获得纬度和经度上的Windows 7桌面应用程序？

Can I get latitude and longtitude on windows 7 desktop application?

通常它将在手机或平板电脑使用GPS，3G或WiFi。

Usually it will work on mobile or tablet using GPS, 3G or WiFi.

不过，我是怎么使用C＃的坐标？

But how I get the coordinate using c#?

推荐答案

一个标准的GPS设备（内部或外部）发送一个串行端口上的数据。从串行端口接收到任何数据是很容易的。请检查此链接

A standard GPS device (internal or external) sends data on a serial port. Receiving any data from Serial Port is very easy. Please check this link.

    //define serial port
    SerialPort serialPort1 = new SerialPort();

    //configuring the serial port
    serialPort1.PortName="COM1";
    serialPort1.BaudRate=9600;
    serialPort1.DataBits=8;
    serialPort1.Parity=Parity.None;
    serialPort1.StopBits= StopBits.One;

   //read data from serial port
   string data = serialPort1.ReadExisting();

GPS数据是由对 NMEA 协议。数据本身就是ASCII文本，并且可以扩展到多个句子，如：

GPS data is composed on NMEA protocol. The data itself is just ascii text and may extend over multiple sentences e.g.

• GGA
• GSA
• GSV
• RMC

从维基下面的示例数据。

$GPGGA,092750.000,5321.6802,N,00630.3372,W,1,8,1.03,61.7,M,55.2,M,,*76
$GPGSA,A,3,10,07,05,02,29,04,08,13,,,,,1.72,1.03,1.38*0A
$GPGSV,3,1,11,10,63,137,17,07,61,098,15,05,59,290,20,08,54,157,30*70
$GPGSV,3,2,11,02,39,223,19,13,28,070,17,26,23,252,,04,14,186,14*79
$GPGSV,3,3,11,29,09,301,24,16,09,020,,36,,,*76
$GPRMC,092750.000,A,5321.6802,N,00630.3372,W,0.02,31.66,280511,,,A*43

您可以使用位置数据（纬度/经度）是RMC的适当的字符串

The appropriate string you can use for location data (Latitude/Longitude) is RMC.

$GPRMC,092750.000,A,5321.6802,N,00630.3372,W,0.02,31.66,280511,,,A*43

这是信息描述这里

$GPRMC,225446,A,4916.45,N,12311.12,W,000.5,054.7,191194,020.3,E*68


       225446       Time of fix 22:54:46 UTC
       A            Navigation receiver warning A = OK, V = warning
       4916.45,N    Latitude 49 deg. 16.45 min North
       12311.12,W   Longitude 123 deg. 11.12 min West
       000.5        Speed over ground, Knots
       054.7        Course Made Good, True
       191194       Date of fix  19 November 1994
       020.3,E      Magnetic variation 20.3 deg East
       *68          mandatory checksum

有关完整的GPS数据分析就可以的检查此链接。希望这会有所帮助。

For complete GPS data parsing you can check this link. Hopefully it will help.

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