Automatic toll charging system and a vehicle-mounted unit used in the automatic toll charging system
First Claim
1. 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; and
a 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; and
wherein 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.
1 Assignment
0 Petitions
Accused Products
Abstract
An automatic toll charging system communicates by radio between roadside units disposed on each gate of a toll road and a vehicle-mounted unit mounted in a vehicle, and automatically charges a toll in a range from an entrance gate to an exit gate. In this system, an IC card is inserted in the vehicle-mounted unit , and payment information recorded in the IC card and entrance information received from a roadside unit, disposed at the entrance gate are recorded in the information recording part of the vehicle-mounted unit. In addition, the entrance information recorded in the information recording part is transmitted to the roadside unit disposed at the exit gate, and a toll payment process is executed. The entrance information is recorded in the IC card as a backup so the toll payment process can be executed even if a function of the vehicle-mounted unit is performed improperly.
68 Citations
19 Claims
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1. An automatic toll charging system for automatically charging a toll in a range from an entrance gate to an exit gate, said system comprising:
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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 including a first roadside unit disposed at said entrance gate, to transmit entrance information, and a second roadside unit disposed at said exit to receive said entrance information and said payment information; and a vehicle-mounted unit mounted on a vehicle, to communicate by radio between said roadside units and said vehicle-mounted unit, said vehicle-mounted unit including recording 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, and controller 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; and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19)
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12. A vehicle-mounted unit used in an automatic toll charging system for communicating by radio between roadside units disposed at each gate of a toll road and said vehicle-mounted unit mounted on a vehicle, for automatically charging a toll in a range from an entrance gate to an exit gate, and for receiving a detachable information recording medium which records payment information regarding a toll payment, said vehicle-mounted unit comprising:
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communication means for communicating by radio between said vehicle-mounted unit and said roadside units; recording means for recording entrance information and payment information both used for said radio communication between said vehicle-mounted unit and said roadside units, said recording means being different than said detachable information recording medium; and control means for receiving entrance information transmitted from a first roadside unit disposed at said entrance gate of said toll road via said radio communication means, for recording said payment information recorded in said information recording medium and said entrance information in said recording means, for recording said entrance information in said information recording medium as a backup, and for transmitting said payment information and said entrance information both recorded in said recording means to a second roadside unit disposed at said exit gate of said toll road using said radio communication means wherein said vehicle-mounted unit includes an interface, signal transmission between said control means and said detachable information recording medium is carried out via said interface and signal transmission between said control means and said record means is directly performed. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification