A system for charge processing tolls and the like. A vehicle mounted device detects the position of a vehicle 32 using GPS, and transmits position information via a wireless channel to a central station. The central station performs charge processing (calculation) for an area in which a charge is applied based on the position of the vehicle, and transmits the charge to the vehicle mounted device. The vehicle mounted device collects a toll from a prepaid card or IC card or the like on the basis of the received charge processing result.

 
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