Vehicle-carried unit for automatic toll-paying systems and automatic toll-receiving apparatus

摘要

A vehicle-carried unit for automatic toll-paying systems carried on a vehicle for automatically paying a toll from a plurality of IC cards through communication with an on-road unit installed on a road. The toll is calculated at an exit gate in accordance with predetermined toll information, and it is judged whether or not payment is possible in accordance with balance information of a plurality of IC cards stored in a storage circuit. In the case of being capable of payment, the toll is subtracted, and a payment signal is transmitted to the on-road unit. Because balances of a plurality of IC cards are stored as described above, it becomes unnecessary to stop at a tollbooth due to shortage in balance. $$