The Design And Research Of Automobile Remote Monitoring And Anti-theft System Based On Mobile Terminal

Aiming at the problem of car theft and the traditional car anti-theft system,a remote monitoring and anti-theft system of automobile based on mobile terminal is designed.The system consists of three parts:the car terminal,the Web server and the mobile terminal.The car terminal is mainly responsible for collecting and processing and uploading the car theft data,as well as receiving and executing the remote control commands from Web server.The Web server is mainly responsible for receiving the car anti-theft data from the car terminal,receiving and delivering the remote control commands from the mobile terminal,storing and managing all data of the system,and providing the data support for the mobile terminal.The mobile terminal is mainly responsible for presenting the status information of the car to it’s user in real time,passing the user’s control commands to the Web server,and monitoring the car alarm information sent by the Web server and informing the user of the car alarm information through vibration and sound.The car terminal treat STM32 as the main controller,and it is equipped with LHI778 infrared sensor module,SW-42 vibration sensor module,NEO-6M GPS positioning module,JT606 oil level sensor module,SIM900A wireless communication module.The infrared sensor module and the vibration sensor module are used to detect whether the car has thieves invasion;the GPS module is used to access to the location of the car in real time;the oil level sensor module is used to measure the oil level of the car and provide data for the anti-theft oil of the car;the wireless communication module is used to upload the anti-theft data of the car to the Web server and receive the remote control commands sent by the Web server.The system uses Tomcat as Web server and uses SSH integrated open source framework as it’s software framework.The system uses B/S architecture.The Web server communicates with the car terminal using the HTTP protocol.The Web server and the mobile terminal communicate with each other using HTTP and WebSocket protocol.Web server uses WebSocket protocol to push the alarm information to the mobile terminal to improve the instantaneity of it.The mobile terminal uses Android as software platform and integrates the Android SDK of Baidu Map,and it can display the location and status information of the car in real time.The mobile terminal uses the Service component of Android and the WebSocket protocol to monitor the car alarm information sent by the Web server in real time and in the background of the Android OS.When receiving car alarm information from Web server,the mobile terminal App uses Vibrator component and MediaPlayer component of Android to open the vibration and sound of user’s phone to inform the user of the car alarm information.The mobile terminal and the Web server use JSON as the data transfer format between each other that can be a good way to save data traffic and improve the communication rate.Finally,the whole system was tested.The test results show that the system can perceive the car theft information and transmit it to the owner of the car in real time when the car is stolen.The system has excellent instantaneity and reliability,and it has great economic value and practical value for solving the theft of car.