Communications: electrical – Vehicle detectors – Speed and overspeed
Patent
1992-12-29
1995-05-30
Swarthout, Brent
Communications: electrical
Vehicle detectors
Speed and overspeed
340905, G08G 101
Patent
active
054205808
ABSTRACT:
A motor vehicle warning system for use on a roadway having an established safe speed comprises a sensing and processing circuit located on the motor vehicle. Signaling elements are strategically placed on the roadway in advance of a hazardous area for the vehicle. The signaling elements, such as permanent magnets, are separated by a distance indicative of a recommended safe speed for executing the hazard. An induction coil located on the underside of the vehicle senses the magnetic field from the magnets as the vehicle passes and provides an input to the sensing and processing circuit. The time period for the vehicle to traverse the distance between the elements is compared in a logic circuit to the recommended time period representative of a safe speed. If the vehicle speed exceeds the safe speed, a warning signal is generated to give the driver additional time to react to the potentially dangerous situation that is about to be encountered. Adjustments to the indicated safe speed may be made to account for other conditions, such as an elderly driver or windshield wiper or headlight operation, for example.
REFERENCES:
patent: 2493755 (1950-01-01), Ferrill, Jr.
patent: 2640979 (1953-06-01), Carter
patent: 2911635 (1959-11-01), Ross
patent: 3024414 (1962-03-01), Nordqvist
patent: 3085646 (1963-04-01), Paufve
patent: 3544958 (1970-12-01), Carey et al.
patent: 3609678 (1971-09-01), Fayling
patent: 3668624 (1972-06-01), Spaulding
patent: 3775743 (1973-11-01), Carter
patent: 4173010 (1979-10-01), Hoffmann
patent: 4401181 (1983-08-01), Schwarz
Swarthout Brent
University of South Florida
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