Safe-distance computing aid for motor vehicle driver - uses contactless range-finding scanner with programmed control computer, read=out and warning devices.

摘要

A distance scanner is installed in the vicinity of the leading or trailing edge of the vehicle, or on its roof, or on a trailer or towed caravan, and is connected to an on-board computer having a program diskette and a link to the speedometer. The distance from a preceding or a following vehicle or a stationary obstacle may be measured by focusing in a photographic or vide camera or by ultrasonic or radio echo ranging. ADVANTAGE - Drivers can read more easily the distance measurements and calculations, can discern opportunities for lane-changing and overtaking manoeuvres, and can judge distances from loading ramps when reversing.