Motion detection assembly for use in combination with a motor ve

Details Motion detection assembly for use in combination with a motor ve Motion detection assembly for use in combination with a motor ve

1992-12-29

1994-06-07

Williams, Hezron E.

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

340426, 340693, B60R 2510

Patent

active

053193504

ABSTRACT:
An assembly used to protect the driver or occupant of a motor vehicle, particularly police officers or the like from assailants surreptitiously approaching the automobile, when parked without the knowledge of the vehicle's occupants. The detection assembly comprises a plurality of motion detectors mounted on the exterior of the vehicle and cooperatively disposed relative thereto so as to monitor a surrounding area or perimeter of substantially 360 degrees. The occupants of the vehicle are warned by an alarm assembly which provides both audible and visible communication indicating that motion has been detected within the monitored external area surrounding the vehicle. In a preferred embodiment the plurality of motion detectors each comprise a microwave and passive infrared detector structure.

REFERENCES:
patent: 4260980 (1981-04-01), Bates
patent: 4772875 (1988-09-01), Maddox
patent: 4823051 (1989-04-01), Young
patent: 4882567 (1989-11-01), Johnson

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