模拟雷达扫描的界面，用于小型定位系统的客户端程序。,Simulated radar scan interface positioning system for small client program.

通过串口接收GPS数据，解析接收到的GPS信息中GPRMC数据，从中提取出经度和纬度信息。-Through the serial port to receive GPS data, analytical information received GPS GPRMC data to extract the longitude and latitude information.