Toll collection system
First Claim
1. A toll system comprising:
- a vehicle type discriminator for discriminating a type of running vehicles and producing vehicle type discrimination data based thereon;
communication means located at a position above a road, for forming a communication area downwardly therefrom and in the direction of an upstream side of said road, and for communicating with devices provided on vehicles in said communication area;
determining means for determining whether or not an order of said vehicles passing through said vehicle type discriminator matches an order of said vehicles passing through said communication area by comparing said vehicle type discrimination data with vehicle type data transmitted from said devices provided on said vehicles to said communication means; and
verifying means for verifying that proper communication is made between said communication means and a device on a vehicle passing through said communicating area based on said determination of said determining means.
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Accused Products
Abstract
The present invention provides an automobile toll system which may determine accurately whether a device mounted on a vehicle has a mismatch even when a small automobile is running just behind a large automobile and therefore blocked from communicating with the toll system. In the system, a vehicle type discriminator determines the type of a vehicle passing therethrough based on its shape and weight and transmits determination data to a lane controller. A controller for a reading antenna continuously transmits vehicle type data retrieved from a response signal from the vehicle-mounted device when vehicles stay in the antenna communication area. The lane controller compares type discrimination data and vehicle type data for each vehicle in the order of vehicles leaving the communication area to recognize a mismatch if the data are different.
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Citations
10 Claims
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1. A toll system comprising:
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a vehicle type discriminator for discriminating a type of running vehicles and producing vehicle type discrimination data based thereon; communication means located at a position above a road, for forming a communication area downwardly therefrom and in the direction of an upstream side of said road, and for communicating with devices provided on vehicles in said communication area; determining means for determining whether or not an order of said vehicles passing through said vehicle type discriminator matches an order of said vehicles passing through said communication area by comparing said vehicle type discrimination data with vehicle type data transmitted from said devices provided on said vehicles to said communication means; and verifying means for verifying that proper communication is made between said communication means and a device on a vehicle passing through said communicating area based on said determination of said determining means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification