To reduce the robbery rate of the car and meet the intellectualized vehicle anti -theft demand of people. We proposed a vehicle anti - theft system which combined the radio frequency identify technology and the global mobile communication network. The system took Texas Instruments Company's car- used microcontroller STM8AF51AA as a control core. NXP Semiconductors Company's radio reader IC MF RC522 could identify the car owner quickly and then came true the function of keyless entry and keyless start - up. At the same time. The infrared sensors and vibration sensors completed the monitoring function. GSM module SIM300DZ of Simoom company finished setting and dismissing the prevention by message or call and controlled remotely the car' s states through AT instructions. It has showed in practice that compared with the traditional vehicle anti - theft system, this system could not only identify the owner singly, but also improve the security and reliability. So it has achieved the unity between intellectualized safeguard and remote control.%为了降低汽车的失窃率,满足人们对于智能化防盗的需求,设计出了一种融合射频识别技术和全球移动通信网络的汽车安防系统;系统以德州仪器公司的八位车用微控制器STM8AF51 AA为控制核心,恩智浦公司的射频读卡芯片MF RC522能迅速识别车主的身份,实现无钥进入和无钥启动功能,热释电红外传感器和振动传感器完成现场监控功能,Simcom公司的GSM模块SIM300DZ实现短信或电话设防和解防,并通过AT命令远程控制汽车的状态;实践表明,与传统的汽车防盗系统相比,系统能唯一识别车主身份,安全性和可靠性提高,实现了智能化防盗和远程控制的统一.
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