Computerized vehicle classification system

Details Computerized vehicle classification system Computerized vehicle classification system

1986-07-18

1988-12-06

Lall, Parshotam S.

Boots, shoes, and leggings

340943, 340933, 367 97, G01S 1506

Patent

active

047899417

ABSTRACT:
A computerized ultrasonic system is disclosed for classification of vehicular traffic, as at a toll collection booth. An ultrasonic ranging unit is mounted above the traffic lane, facing downward. The unit is activated by the presence of a vehicle and proceeds to measure repetitively the momentary vertical distance of the vehicle from the ranging unit. Processing circuitry is provided to ascertain average and maximum height, rejecting aberrational readings, such as from an antenna. The computerized system may include a "look-up" of standard vehicular categories, enabling classification of vehicles by comparison of the data received with pre-programmed standard categories.

REFERENCES:
patent: 3214729 (1965-10-01), Frielinghaus
patent: 3343167 (1967-09-01), Rademacher
patent: 3506809 (1970-04-01), Pallat
patent: 3675190 (1972-07-01), Auer, Jr. et al.
patent: 3872283 (1975-03-01), Smith et al.
patent: 4187487 (1980-02-01), Numata et al.
patent: 4674069 (1987-06-01), Mizuno

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