Patent ID: 7106212

Claim:
A mobile radio communication device for an automatic toll collection system which charges a toll of a mobile body by executing communications with rode-side communication devices at an entrance gate and an exit gate, the device comprising: antennas for receiving map data of the toll charge area from the road-side communication device at the entrance gate; a GPS receiver I/F for receiving present position information of the mobile body; a processor configured to facilitate storing as travel path data the present position of the vehicle on the map, calculating an accumulated travel distance covering from the entrance of the toll charge area to the present position based on the travel path data, and calculating an actual travel distance of the mobile body In a toll charge area between the entrance gate and the exit gate based on the accumulated travel distance, wherein the antenna are for transmitting the calculated distance of actual travel of the vehicle to the road-side communication device when at the toll charge area, and for receiving a toll charge calculated based on the calculated distance of actual travel from the road-side communication device; and output means for outputting the toll charge in the vehicle, wherein the processor check whether the mobile body has traveled in a special toll area based on the map data and the present position information when the toll charge area includes a special toll area in which a special toll is charged and charges the special toll when a check result indicates that the mobile body has traveled in the special toll area, and wherein the processor calculates the special toll in correspondence with a distance which the mobile body has traveled in the special toll area.