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With ARM7 as the core, this paper discusses a kind of design of vehicle location system. The new mobile vehicle positioning architecture and working theory of this system is integrated by a lot of hardware modules such as ARM microprocessor LPC2129 as a control unit to combinative with GPS LR9548 and GSM TC35 modules By the hardware/software co-design, the new mobile vehicle Positioning system can be designed. It explores location solution, map matching and data compress associated with the positioning, shows a program flowchart and predicts the trend of the vehicle location system in the future and meets the traffic auditing department's needs about mobile vehicle location.
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