Based On The Gsm Auto Remote Anti-theft System Design

In recent years, with the increase of the quantity of vehicles, car theft has more and morebecome a career of criminal groups. Car alarm will be are paid more attention. The paperproposes a car remote anti-theft system plan based on GSM and microcontroller after theanalysis of the background of the car alarm, the research and the significance. Its main featuresare practical, easy to operate, inexpensive and friendly design.If an exception occurs, the automotive information collected by the human body sensorand the vibration sensor module sends to the mobile phones of owners through GSMcommunication module. At the same time, controller controls the voice module to carry outvoice alarm instead of sound and light alarm, and the voice sounds more humane. Owners canalso query whether the car is in a secure state through the GSM short message at any time. Inthis system, vehicle anti-theft system has automatic adjustment function on the rear-viewmirrors. In a fortified state, the rear-view mirrors automatically fold, and in the disarmed state,the rear-view mirrors automatically expand. In the driving process if the angle of rear-viewmirror has deflection, system automatically adjusts the rear-view mirror angle set by the owners.So that owners do not need to get off to adjust the rear-view mirror angle, and avoid the thievestook the opportunity to rob, and thus to some extent play a security role. The functions whichautomatically adjust the rear-view mirrors angle and voice alarm are the first time to use in theautomobile anti-theft system, so that the whole system is more intelligent.The system hardware includes two parts of the vehicle terminals and the user’s mobilephone, and focus on the design of the vehicle-mounted terminal parts. The paper designs a caralarm system of an automatic acquisition, automatic transmission, automatic control, theinteraction of people and vehicles. The system adopts STM32F103R6T6as the systemcontroller, and selects Huawei’s EM310module GSM module, designing with vibration sensor,angle sensors, the human body sensor module, the remote controller, voice module, relays,stepper motors, LCD1602and other devices. Schematic designs of the modules are with Protel99se mapping software.The software design is the main program design of the vehicle anti-theft system, includingchip initialization, the subroutine of angle detection and control, the subroutine of human bodysensor alarm, the subprogram of vibration alarm and the GSM communication program. On thebasis of firmware library provided by ST company, the paper designs and implementations theprocedures. With the C programming language, programming is in MDK compilationenvironment. System is designed to meet the people to keep abreast of the situation of the automotivesafety, real-time information processing, and effectively control. Finally the paper showsdebugging results of automotive remote anti-theft system, and analysis of the modulationresults. The solutions of emerging issues are presented in the design and debugging process.