On-board electronic device for use in electronic toll collection system
First Claim
1. A communication system for use in an electronic toll collection system in which a toll is electronically collected through wireless communication between an on-board electronic device and a stationary electronic device, the communication system comprising:
- means for detecting an illegitimate action committed in the electronic toll collection system, said detecting means being a component of said on-board device;
means, electrically connected to the detecting means, for temporarily terminating the wireless communication between the on-board electronic device and the stationary electronic device when the illegitimate action is detected by the detecting means; and
means, including a programmer separate from the on-board electronic device, for recovering the wireless communication between the on-board electronic device and the stationary electronic device.
1 Assignment
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Accused Products
Abstract
In a toll gate system in which the toll is automatically and electronically collected through wireless communication between an on-board electronic device and a stationary electronic device installed at the toll gate, illegitimate or fraudulent actions committed in the system are detected by the on-board device. When such actions are detected, a communication function of the on-board device is made inoperative. After disposing the illegitimate actions properly, the communication function of the on-board device is restored so that the on-board device can be used again thereafter. The illegitimate action such as opening the on-board device for changing or reading the data contained therein can be detected by sensing removal of screws fastening a circuit board to a case of the on-boar device.
57 Citations
16 Claims
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1. A communication system for use in an electronic toll collection system in which a toll is electronically collected through wireless communication between an on-board electronic device and a stationary electronic device, the communication system comprising:
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means for detecting an illegitimate action committed in the electronic toll collection system, said detecting means being a component of said on-board device; means, electrically connected to the detecting means, for temporarily terminating the wireless communication between the on-board electronic device and the stationary electronic device when the illegitimate action is detected by the detecting means; and means, including a programmer separate from the on-board electronic device, for recovering the wireless communication between the on-board electronic device and the stationary electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An on-board electronic device having a communication function for use in an electronic toll collection system in which a toll is electronically collected through wireless communication between the on-board electronic device and a stationary electronic device, the on-board electronic device comprising:
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means for detecting an illegitimate action committed in the electronic toll collection system; means, electrically connected to the detecting means, for temporarily terminating the communication function of the on-board device when the illegitimate action is detected by the detecting means; means for recovering the communication function of the on-board device; a circuit board carrying electronic components thereon; and a case containing the circuit board therein, wherein; the illegitimate action is opening the case illegitimately; the circuit board is fastened to the case with a plurality of screws; and removal of the screws from the circuit board in an order other than a predetermined order is judged as the action illegitimately opening the on-board electronic device. - View Dependent Claims (16)
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Specification