RAILWAY CROSSING SIGNALING HARDWARE CONTROL DEVICE

摘要

FIELD: transport.SUBSTANCE: invention relates to railway safety signaling hardware. Proposed device comprises crossing light control circuit, crossing approach track circuit, and hardware of feeding and relay ends. Feeding end hardware incorporates extra current transducer, current phase detector, threshold amplifier and safe dynamic elements. Relay end hardware incorporates extra power supply, power accumulator, voltage stabiliser, pulse generator and switch.EFFECT: longer crossing approach section.1 dwg