METHOD AND DEVICE FOR AVOIDANCE OF CAR COLLISION Russian patent published in 1995 - IPC

FIELD: equipment for avoidance of collision of transport facilities. SUBSTANCE: optical radiation is received, filtered and converted separately from "n" sections located one after another in dangerous zone. Presence of obstacle is judged from difference of signals from adjacent sections. Device has electro-optical transducer which consists of optical element, optical filter, sensitive elements, series resistors, differential amplifiers, switch, unit for determination of dangerous distance and alarm signal generator. EFFECT: enhanced reliability. 3 cl, 4 dwg