基于GPRS的远程汽车紧急呼救系统

结合GPRS远程监控系统的工作原理，提出了一种以提高交通安全为目的远程汽车自动紧急呼救系统的构建方案，该系统伴随安全气囊的启动而启动，终端将安全气囊点火信号送入微处理器，通过串行接口驱动无线数据传输模块经GPRS网络发送到远程监控中心。给出了终端硬件电路实现、软件设计以及控制中心的设计方案，对系统关键技术进行了说明。

Design of Remote Vehicle Emergent Calling System Based on GPRS

Combining with the working principle of GpRS,and with the purpose of enhancing the security of modern traffic,this paper brings forward a project of building a kind of remote automobile emergent calling system which starts-up with the starting of airbag,the wireless date transport modem,which is droved by serial interface,transmitted the acquired data to the remote monitoring center.The design of the hardware circuit implement,the design of software and the design of building monitor and control center are demonstrated.And finally,the key technique of the system is also discussed in this paper.