基于单片机的汽车防盗报警系统设计

DESIGN OF THE AUTOMOBILE ANTI-THEFT ALARM SYSTEM BASED ON THE SINGLE CHIP MICROCOMPUTER

传统汽车防盗报警器存在工作距离短、噪声污染大和GPS定位器成本高等问题,最关键的是其只有现场威慑作用。针对上述问题,本文设计了基于单片机的汽车防盗报警系统,硬件采用低功耗、高效率的STC89C52单片机,并运用蜂鸣器和GSM模块相结合的报警方式。软件依据单片机对中断口电平变换的检测、AT指令集和Text通信模式进行设计。测试结果表明,系统在实现振动检测、声光报警和短信报警功能的基础上,具有远距离无线报警、及时性提醒和无噪声污染等特点,解决了传统汽车防盗报警器存在的问题,更有效地保障汽车安全。

The traditional car anti-theft alarms have the problems of short working distance,high noise pollution,and high cost of GPS.The most important thing is that they only have on-site deterrent effect.In order to solve the problems mentioned above,an automobile anti-theft alarm system was desighed based on the single-chip computer.The STC89 C52 single-chip microcomputer with low-power and high-efficiency was used as the hardware.and the alarm mode was designed as the combination with buzzer and GSM module.The software was designed according to the detection of the level change of the interrupt port,the AT command set,and the Text communication mode.The software is designed according to the level transformation of the interrupt port,AT instruction set and Text communication mode.The test results showed that the system realized the functions of vibration detection,sound and light alarm,and SMS alarm.It had the characteristics of long-distance wireless alarm,timely reminder,and no noise pollution.It could be concluded that the design solved the problems of the traditional car anti-theft alarm,ensuring the car safety more effectively.