Design And Implement Of The Intelligent Vehichs.ystemfor Taxi Based On ARM

The subject of the research is based on the ARM9platform, using embeddedLinux operating system strong management core and peripheral functions, retainexisting taxi based on the development of a set of smart fight multiply, satellitepositioning, wireless communication, remotethe versatile vehicle monitoring in onesystem.This paper analyzes the development status of the taxi car, introduced the keytechnologies of the in-vehicle system: GPS, GPRS, serial communication technologyand embedded technology. First ARM microprocessor and Linux operating systemsare introduced; Secondly, elaborated on GPS technology positioning principle andGPRS network structure and characteristics, and description of the main GPRStransfer protocol. Finally, the serial communication technology in the transmission ofinformation in the application direction. According to the requirements and needs ofthe automotive systems, devices and modules on the hardware platform selection,software, hardware circuit design. Details custom embedded Linux operating systemand transplantation, as well as the main function of the software development. And forthe fight multiply denominated functional requirements of the module, the modulealgorithm.Keep basic communication smooth through the test, GPS positioning information,meter operations information and other data the vehicle terminal can be achieved withthe control center of the communication and data exchange capabilities to meet thebasic needs of the user. Finally, the system summary and outlook to system upgradeprogram. Economical and practical, of the system can be widely applied to othervehicles.