工程机械车载终端中GPRS通信的分析及实现

Analysis and implementation of the GPRS communication in the vehicle monitoring terminal of the construction machine

针对工程机械车载终端的GPRS通信进行了分析和实现.在对工程机械车载终端进行硬件设计的基础上,进行了GPRS通信时和服务器连接建立和实现的分析,包括不同服务器网络终端连接方式的分析,以及PPP和TCP/IP协议栈的设计实现等.最终,以合理的流程实现了车载终端和中心站服务器的GPRS通信.

The GPRS communication in vehicle monitoring terminal of construction machine is analyzed and implemented.Based on the design of hardwares of vehicle monitoring terminals,analyses on connection establishments and implementations are given,including an analysis of the connection of terminals and servers on different server networks,and PPP and TCP/IP protocol stacks are designed and implemented.In the end,with a reasonable flow,the GPRS communication between the terminal and the center server is implemented.