Drive-up station vehicle detection system and method of using sa

Details Drive-up station vehicle detection system and method of using sa Drive-up station vehicle detection system and method of using sa

1994-05-04

1996-04-30

Swarthout, Brent A.

Communications: electrical

Vehicle detectors

Inductive

340933, 340939, 364436, G08G 101

Patent

active

055128912

ABSTRACT:
A method and apparatus for detecting objects disposed in close proximity to a conductive loop, includes the use of a sensitivity selection circuit to compensate for loop sensitivity to metal and other conditions, and a microprocessor circuit for helping to prevent false detections or undesired interruptions of valid detection due to changes in environmental conditions.

REFERENCES:
patent: 3863206 (1975-01-01), Rabie
patent: 3873964 (1975-03-01), Potter
patent: 3989932 (1976-11-01), Koerner
patent: 4131848 (1978-12-01), Battle
patent: 4568937 (1986-02-01), Clark
patent: 4862162 (1989-08-01), Duley

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