| 摘要 |
PURPOSE: Provided are a toll collection device, an on board unit and a toll collection method, by which the collection of the toll which corresponds to distance utilized, for example in a toll road adopting a prepaid method, can be performed quickly and without fail. CONSTITUTION: The toll collection device comprises entrance data obtaining means for obtaining data showing that a vehicle has entered an entrance of a toll road and data obtained from an on board unit mounted on the vehicle by wireless communication as entrance passing data; exit data obtaining means for obtaining data showing that the vehicle has exited from an exit of the toll road and data peculiar to the on board unit(6) obtained by a wireless communication from the on board unit mounted on the vehicle as exit passing data; first vehicle specifying means for specifying a utilization by the vehicle basing upon the obtained entrance passing data and the exit passing data; toll calculating means for calculating toll charge basing upon the specified utilization by the vehicle that is specified by the first vehicle specifying means; means for obtaining data readout from a number plate provided on the vehicle; and second vehicle specifying means for specifying the vehicle basing upon the data obtained from the number plate when the utilization by the vehicle cannot be specified by the first vehicle specifying means.
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