Rear-end collision warning device of the automobile

摘要

(57) Abstract Objective Even under adverse condition decrease of measurement performance of cars between distance antiThe collision alarm device of the kind of automobile where the gi and commodity Characteristic improve stoppingOffer. Constitution It is detected by the light absorbent component, from the laser light-emitting partRadiates by the said windshield of the laser which the reflected level RIf it is above specified level A%, air blow is done, (S1,2), it was judged that furthermore yet the soiling has not fallen,When, the soiling is removed furthermore with the compressed air (S3- 5), iterates specified frequency judgment, judges as the removal impossibilityWhen it is done, in order that it removes artificially, discontinuing air blowIt does, (S6 - 9).