System Design Of Automobile Electronic Anti-theft Alarm Based On STM32 Single Chip Microcomputer

With the development of economy, improvement of people’s living standards, the automobile has become the indispensable tool for people to travel, car theft cases often occur, endanger the safety of people and property. Multiterminal crime means the criminal, automobile anti-theft system of traditional can not effectively prevent the occurrence of theft cases.Aiming at the application prospect of existing automobile anti-theft equipment problems and market, the author put forward a design scheme of the new car anti-theft system, this paper designs a kind of automobile anti-theft system which is currently widely distributed GSM network and based on high precision and GPS positioning technologyThe system uses STM32 as the controller, to obtain the location information at the vehicle using the GPS module, the GSM module to realize the communication with the owners, owners can realize locking, unlocking by mobile phone, can conveniently, quickly into security status and disarm the state. The main work for the part of software design, to achieve the following functions:through the vibration sensor, to determine whether there exists the safety car, once the occurrence of an alarm, can send short message to the mobile phone owner under extreme time, silent alarm. The owner can send and receive text messages through the operation, control the short message to send the car anti-theft device, through the relay operation control, the realization of power off or cut off oil, forcibly stop location information can also use the GPS module acquisition vehicle, via text message sent to the owners of mobile phones, the owners know in time the location information of the vehicle, which is more conducive to the owners in after the stolen car to car tracing.The actual test results show, the design of the automobile electronic anti-theft alarm system has the advantages of simple structure, high reliability, high sensitivity.