基于GPRS／3G的远程通信实验系统组网方案实现

摘要

针对远程通信实验对于系统组网的要求，提出了一种基于 GPRS／3G 技术的系统组网方案。系统设有多个外置的GSM模块，中心和远程设备通过串口控制各自的模块，以实现网络连接和SMS通信，传递实验数据和各设备定位信息。对方案中GSM模块、GPS模块及其附属电路、GPRS 网络连接和短消息编码方式等关键技术进行了介绍，并给出了软件流程图和VC实现的部分代码。%According to the network requirements for remote communication experiment system, a scheme is presented based on GPRS/3G technology.The system has several external GSM modules.The center and remote devices control each module respectively through serial port to realize the network connection and SMS communication,and the transfer of experimental data and GPS informa⁃tion.This paper introduces the key technologies of GSM module,GPS module and its subsidiary circuit,GPRS network connection and short message coding method,etc.At last it gives software flow chart and code implementation with VC.