Method and apparatus for discriminating vehicle types

Details Method and apparatus for discriminating vehicle types Method and apparatus for discriminating vehicle types

1996-12-30

1998-05-12

Swarthout, Brent A.

Communications: electrical

Vehicle detectors

340937, 340942, 701117, G08G 101

Patent

active

057500690

ABSTRACT:
A technique for discriminating a vehicle uses the pressures of tires of a vehicle passing on a pair of contact-point boards, which are converted into digital signals by using shift registers, and measures the width of the tires and the distance between tires, and counts the axles of the vehicle, according to the converted signals. The tire width of a vehicle, the distance between the left and right tires and the number of axles are processed in real time by outputting a digital signal from a contact-point in which a board portion makes contact with a tire of a passing vehicle. Furthermore, even if either one of the contact-point boards for discriminating a vehicle type breaks down, a vehicle can still be discriminated.

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