| Automobile travel recorder is new a acting high-tech product, but real time record automobile accurately the course of traveling in various state parameters, and through IC card deliver the data of recorder collection systematic personal computer in, analyse through the data for special purpose that analysis software goes to for collection, can reappear automobile the course of traveling in various states. On the one hand is convenient for traffic management department as well as automobile operation unit for automobile manage; On the other hand the information of recorder record can still think the basis and that reason and just handling have offered science and authority that traffic accident occurs. This paper have discussed in detail the automobile that becomes by PIC single flat organization travel the basically working principle of recorder systematic overall design, the interface design of memory and single flat machine, the interface design of the single flat machine and clock of real time, speed sensor design and the small-sized switch design of power source, systematic hardware and software realization method, as well as software process and data form the design of the user interface stipulated. Through adopting have Ha the PIC only flat machine of Buddha structure, not only, have raised the ability of interference rejection with which systematic real time handles speed and has strengthened system; When exceeding the speed limit, through adopting acousto-optic report to the police remind driver in time accurately will slow down to travel.
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