The Appliance Research Of Intelligent Vehicle Alarm System Based On ARM

With the rapid development of economy, people's lives have improved a lot, and more and more people buy automobile. At the same time, however, the numbers of thefts of automobiles are rising every year, which makes people suffer from tremendous economic loss. Hence, the system of guard against theft becomes an absolutely necessarily equipment of today's vehicles. However, the traditional guard systems have too much limitation, such as close distance, bad reliability, and etc. On the basis of the research of vehicle guard system status and development trends, the design of vehicle guard system based on ARM, GPRS and GPS is proposed.At first, in accordance with the components and the working principle of the vehicle guard system, the design of the vehicle guard system was proposed in this paper first. In hardware design, ARM MPU-S3C44B0X was used as the main control unit to improve the operating speed of the system and data processing capabilities. Moreover, the data storage, sensor, GPS positioning, GPRS communication, CAN-bus interface modules were designed based on the function requirement of the system.Secondly, in order to satisfy the demand of real-time ability and multi-task management,μC/OS-Ⅱ, the embedded real-time operating system, was transplanted. On this basis, the application software was designed. In order to realize the distant monitoring and alarming, the controller collected the GPS data and sent it to the owner's mobile phone though GPRS, And at the same time, the GPS data is sent to the monitoring center PC through Internet.In addition, Visual C++6.0 and Access database technology were applied to design the PC monitoring software. And via this software we can observe the current statues of the car. Furthermore, we can achieve the historical data and alarm phone number. The research of GPS data collecting by the controller and the communication with the monitoring center and the owner's mobile phone via GPRS is the emphases of this paper. Finally, through the simulation and debugging in the lab environment, the system run well and realized the function of GPS data acquisition and distant alarming. And the system is proved to have the advantages of high data acquisition speed and good reliability.