DEVICE TO ALERT PEOPLE AT RAILWAY PEDESTRIAN CROSSING ABOUT TRAIN APPROACH

摘要

FIELD: transport.SUBSTANCE: alert system comprises annunciator of approach to dangerous point connected via communication line with receiver arranged at locomotive, decoder, memory unit, gate multivibrator, three-input OR element, control circuit, reset pulse generator and people presence control pickups.EFFECT: higher safety.1 dwg, 1 tbl