“Jupiter” GPS接收机软件开发及其定位系统研究

Global Position System Receiver Interface Software Development and Navigation System Establishment

介绍"Jupiter" GPS接收机与计算机的异步串行传输技术,以及WGS-84坐标与北京54坐标之间的转换方法.采用MapX5.0控件内嵌可视化编程语言VC++进行开发,实现GPS信号的采集、存储和显示,并建立基于GIS的定位系统,实现数据的实时显示、记录回放、点击定位等多种功能.该GPS接收机软件不但可用于"Jupiter" GPS接收器,还可通过串口配置,适用于任意遵循NMEA-0183协议的接收机,通用性和扩展性强.

The paper presents an introduction of a serial port communication technique between ＂Jupiter＂ GPS receiver and computer as well as a coordinate transformation between WGS- 84 and Beijing - 54 coordinates. A location system with the functions of receiving, saving and displaying GPS data is developed by integrating GPS and GIS with Visual C ＋ ＋ 6.0 and MapX5.0 Active X. These functions mainly include the real-time location, the record playback, click location, etc. The software of GPS Receiver, which has strong versatility and extension, may not only be used in ＂Jupiter＂ GPS receiver to record data, but also be used to follow the receiver of NMEA0183 protocol through configuring string parameters in random way.