DEVICE TO CONTROL TRACK STATE Russian patent published in 2012 - IPC B61L23/16 

FIELD: transport.

SUBSTANCE: invention relates to railway ACSs and is intended for controlling track state. Proposed device comprises first rail, first and second interfaces, track generator, current limiter, first band filter, first rectifier, first and second PROMs, first and second A/D converters, trigger, register, first and second comparator, first, second and third AND logical elements, logical element OR, and sync oscillator. Additionally, proposed device incorporates: second and third rails, first rail clearing control unit, second rail occupancy control unit, second rail clearing control unit, third rail occupancy control unit, second and third rectifiers, one-shot multivibrator, second band filter, and third A/D converter.

EFFECT: higher shut sensitivity and reduced power consumption.

1 dwg