This paper introduce a car security alarm system network design based on GSM / GPS. The system uses GSM and GPS modules, respectively as the main information transmission and precise positioning module, AVR microcontroller Atmegal 28 as its control center, combining a variety of sensors on the body in real-time security monitoring to achieve the abnormal situation in real-time intelligent discrimination and remote alarm . The system has no fee access control function, anti-theft function, the critical moment of anti-hijack features. A full range of information detection and user-friendly operation, used to overcome the existing anti-theft system false alarm rate and low anti-hijacking system security, a new high-precision network-based anti-theft anti-hijacking system is suggested.%介绍了一种基于GSM/GPS网络式汽车安全报警系统的设计.该系统采用GSM和GPS模块分别作为主要信息传输和精确定位模块,AVR单片机Atmega128作为其控制核心,结合多种传感器对车体进行实时安全监测,实现对异常情况的智能判别和远距离实时报警功能.本系统具有无费门禁控制功能、防盗功能、危急时刻防劫持功能等.全方位的信息检测和人性化的操作,克服现有防盗系统误报率高和防劫持系统安全性低等缺点的基础上,提出了一种全新的高精准的网络式防盗防劫持系统.
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