Development Of Vehicle-intelligence Terminal Based On Cortex-M3

The consumption of fossil energy promotes the development of society,but also leads to many increasingly serious social problems,such as environmental pollution,ecological destruction and local conflicts.In order to cope with the problems,governments of various countries have taken many measures in cleaning renewable energy,conserving energy and reducing emission,low carbon travel and other major fields.Among them,promoting power bus system is one of great importance measure.Accordingly,the core contents for configuring charging system,managing battery power,and controlling vehicle-intelligence have become a research hotspot.In view of this,this paper designs a vehicle-intelligence terminal system based on Cortex-M3 processor to realize the measurement of vehicle information during the operation of electric bus,such as vehicle position,battery power and other operating parameters.Simultaneously,developing the corresponding mobile client APP applications based on the Android platform to achieve control and monitoring of vehicles.In this paper,through the analysis of the domestic and international research status of vehicle-intelligence terminal,and combining with the key technical route of electric vehicle design,a detailed implementation plan is designed.The whole system takes ARM as the hardware development platform,and uses CAN bus technology to realize the data collection of vehicle battery power and so on;selects GPS as the positioning method and through the STM32F103RCT6 microprocessor to process the vehicle location and speed information,at the same time,uses the serial to drive LCD module to achieve data display;uses GPRS for wireless communication means and packages the data for gathering to sent to the server with TCP / IP protocol.Based onAndroid software development platform,developes a remote control function of the mobile phone application,and the mobile client and server complete the data interaction through the way of http.In the process of system testing,realizes the vehicle location,speed,battery power and many other information collection.And the use of mobile client to accurately monitor the operation of the vehicle status,initially reached the expected research objectives.In the follow-up research work,the system will be integrated into the government charge supporting project and Baidu map function to achieve the intelligent management of traffic trajectory.By further improving the power bus system emergency response,so that it has a good social significance and application value.