TOLL COLLECTING SYSTEM, ON-VEHICLE UNIT, IC CARD, TOLL COLLECTING METHOD

摘要

PROBLEM TO BE SOLVED: To promote the use of an on-vehicle unit and a system by discounting the toll of a toll road in the utilization of particular application in the ETC system taking the charging form of a uniform toll. SOLUTION: The ETC system is provided with an antenna device 42 which is installed in a tollgate through which a vehicle enters or leaves a toll road and obtains information on the tollgate which is used previous time from the ETC on-vehicle unit loaded on the vehicle, a tollgate range table 30 storing information on a discount valid range with the tollgate (self-tollgate) of this time of the toll road as a basic point and a lane controller 41 checking the range where discount on the use toll is validated based on information on the tollgate of the discount valid range, which is stored in the tollgate range table 30, and on tollgate information which is obtained from the ETV on-vehicle unit through the antenna device 42 and which is used previous time and performing charging by discounting a toll when it is confirmed that the range is the discount valid range.