Equipment for detecting the movement of a preceding vehicle and

Details Equipment for detecting the movement of a preceding vehicle and Equipment for detecting the movement of a preceding vehicle and

1991-06-11

1992-10-06

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

340436, 340901, 340903, 340904, 180167, 180271, B60Q 100

Patent

active

051535599

ABSTRACT:
An equipment for detecting the movement of a preceding vehicle and giving warning. When one's own vehicle (hereinafter referred to as "the vehicle") is at a stop, the equipment detects the forward or backward movement of said preceding vehicle and gives warning to the driver of the vehicle. The equipment comprises a distance measuring sensor for measuring the distance between the vehicle and said preceding vehicle when the vehicle is at a stop, a memory device for memorizing a value measured by said distance measuring sensor, a measurement command device for making said distance measuring sensor repeatedly measure the distance between the vehicle and said preceding vehicle, a comparison device for comparing said memorized value measured by said distance measuring sensor with values subsequently measured by said distance measuring sensor, and a warning device for giving warning when any of said values subsequently measured is different from said memorized value.

REFERENCES:
patent: 4551722 (1985-11-01), Tsuda et al.
patent: 4779095 (1988-10-01), Guerrei
patent: 4833469 (1989-05-01), David
patent: 5014200 (1991-05-01), Chundrlik et al.
patent: 5059946 (1991-10-01), Hollowbush

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