The Research And Develope Of Vehicle Examination Data Record Based On ARM And Linux

With the development of the automobile electron and modern traffic, people request more about operate functions and safety performance. Using vehicle experimentation traveling data recorder in vehicle testing, experimentation can achieve real time measure, vehicle speed control and excessive speed alarm. Especially, it can satisfy the need of obtaining vehicle details when running and then implement the vehicle testing plan accurately according to vehicle experimental request in order to raise competence of producer.while developing micro electronic techniques and maturing Super Large Scale Integration, embedded computer system gets a quick boom and becomes more powerful which can entirely take the place of traditional industrial controller. In addition, the features such as small volume, low power consumption, high performance price rate and mobility make it suitable to be used in Vehicle Experimentation Traveling Data Recorder.This paper makes a groping research on the platform building of embedded computer system. Aim at feed function acquirement and development of Vehicle Experimentation Traveling Data Recorder, starting from the hardware of embedded computer system and researching its electromagnetism compatibility during the hardware designing.and has successfully developed the embedded computer mainboard with well electromagnetism compatibility and running reliability which mainly include power, reset, JATG module; Data memory module; Data traffic module; Data collection module; human-computer interaction module.In software developing part, this design achieves transplant of boot program (u-boot1.1.4) transplant of Linux2.6.14 kernel, produce root file system and added new hardware drivers for embedded Linux kernel. In the embedded Linux GUI part, MiniGUI wis successfully ported. which the platform of embedded computer system is successfully built.Nowadays, a little data record is used in vehicle experiment in domestic market while the design of vehicle Experimentation Traveling data recorder in this paper is the aim to fill the blank. This new vehicle experimentation traveling data recorder is conveniently used, high performance price rate and fits for medium and small vehicle producer.