Corresponding to hardware, software includeGPS information receive program, information disposal program, information transfer and command receive program, and command execute program. Except, also introduce NEMA, PDU, several data format.

• 软件对应硬件分为定位信息接收、信息处理、信息发送和命令接收以及命令的执行，此外还介绍了GPS的NEMA格式、短消息的PDU格式等几种数据格式。