GSM在汽车遇险自动报警装置研究中的应用

Application of GSM in automatic distress alarm device of automobile

在汽车驾驶安全保护装置应用过程中,安全气囊系统发挥着重要的作用。但由于安全气囊系统属于被动安全技术,存在冲击能量过强、误引爆、位置设计不合理等问题。鉴于此,通过GSM移动网络建立驾驶员与交通部门的安全通信,由数字信号处理器DSP通过芯片引脚读取碰撞传感器与水压传感器的开关量输出信号,来决定是否启用GSM移动网络定位以及自动报警系统。系统采用集成化电路模块、多点结合的报警模式和可控的信号输出,具有灵敏度高、安全性好、技术成熟等优势。

In the application of car driving safety protection device,the airbag system plays an important role in it. But the airbag systems have some problems like impact strength,false triggering,and the unreasonable position design because they belong to the passive safety technologies. So this paper establishes a secure communication of drivers and traffic departments through the GSM mobile network,whether to start the GSM mobile network positioning and automatic alarm system depending on the switch output signal value read by the digital signal processor DSP from the chip pin of crash sensor and the hydraulic pressure sensor. The system uses an integrated circuit module,multi-point combination alarm mode and the controllable signal output method,and it has the advantages of high sensitivity,good safety,and mature technology.