基于STM32单片机的汽车防盗系统设计与实现

Design and Implementation of Automobile Alarm system Based on STM32 Microcontroller

本系统使用STM32单片机作为控制器.中央模块控制器产生随机码作为密码地址,通过无线方式发送到钥匙模块,钥匙模块根据地址发回加密信息,中央模块对加密信息进行解密并校验,返回校验结果,同时根据校验结果判断是否要进行声光报警;在解锁后中央模块可以更改加密方法和密码;随机密码用EEPROM储存,系统掉电时密码信息不丢失,密码信息也不能通过无线遥控方式进行更改或泄露,提高了汽车防盗系统的安全性.本系统经过多次试验,性能稳定,取得很好的效果,在汽车防盗方面有重要的研究意义.

This system use STM32 MCU as the controller. The random code generated by the central module controller is used as the password address, which is sent to the key module through wireless means, and the key module send the encrypted information according to the address. The central module decodes and verifies the encrypted information, send back the verification result and determine whether to conduct the acousto-optic alarm according to the calibration results. After the decoding, central module can change the decoding method and password; Random password can be stored in EEPROM so that the password information will lose when there is power failure. Password information cannot be changed or leaked through wireless remote control, greatly improve the auto security system. Through many experiments, the system shows stable performance and achieves good effect, so this system has important research meaning in auto security.