Patent ID: 6019285
Filing Date: 2000-02-01
Classification: G07B

Abstract:
An automatic toll charging system for automatically charging a toll in a range from an entrance gate to an exit gate, said system comprising:a detachable information recording medium to record payment information regarding a toll payment;roadside units disposed at gates of a toll road, said roadside units includinga first roadside unit disposed at said entrance gate, to transmit entrance information, anda second roadside unit disposed at said exit to receive said entrance information and said payment information; anda vehicle-mounted unit mounted on a vehicle, to communicate by radio between said roadside units and said vehicle-mounted unit, said vehicle-mounted unit includingrecording part, different than said detachable recording medium, to record said entrance information received from said first roadside unit when said vehicle passes through said entrance gate, and said payment information recorded in said information recording medium, andcontroller to transmit said entrance information and said payment information both recorded in said recording part to said second roadside unit when said vehicle passes through said exit gate, and to record said entrance information as a backup in said information recording medium;wherein said detachable information recording medium is installed in said vehicle-mounted unit; andwherein said vehicle-mounted unit includes an interface, signal transmission between said controller and said detachable information recording medium is carried out via said interface and said signal transmission between said controller and said recording part is directly performed.