| 摘要 |
A charging system which carries out position confirmation of a moving body at a place where there is a radio wave blocked facility, and which carries out automatic detection of GPS antenna blockage for avoiding charging. The charging system includes a GPS positioning device for recognizing a vehicle position, a vehicle speed pulse measuring device for dead reckoning navigating, a monitor device which generates information expressing a current position by using these, and a charging processing which judges whether or not a recognized current position is within a charge area and which carries out data processing for charging. The monitor includes a simple map database which includes positions of facilities or geographical features at which GPS positioning is impossible, and when GPS positioning is impossible, the facility or geographical feature corresponding to the current position is detected, and that position is made to be a current position.
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