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摘要

PROBLEM TO BE SOLVED: To use an existing device of ETC system, in a charging system based on a GPS system.;SOLUTION: An external device 200 is connected to an in-vehicle device 100 to perform wireless communication with a central system 300. A charging decision section 209 of the external device 200 decides whether a vehicle has passed through a charging position by collating the positional information of the vehicle with the charging place information stored in a charging place storage section 206. When the vehicle has passed through the charging position, a charging section 210 calculates a toll by collating the information on passage of the vehicle decided by the charging decision section 209 with the information on the amount charged that is stored in a charging information storage section, notifies the in-vehicle device 100 of the calculated toll and processes the charging.;COPYRIGHT: (C)2010,JPO&INPIT