DEVICE FOR SWITCHING AND CONTROLLING TWO-FILAMENT LAMPS OF TRAFFIC LIGHTS Russian patent published in 2007 - IPC G08G1/95 B61L23/00 B61L7/10 

FIELD: railroad automatics and telemechanics, in particular, engineering of devices for interval control of train movement.

SUBSTANCE: device contains power source, first and second safety locks, first (3) and second (4) light-out relays, first (5) and second (6) backup light-out relays, first, second, third and fourths capacitors, three-wire linear circuit, first, second and third resistors, first, second and third diodes, first (21) and second (22) signaling transformers, light-out relays of first (7) and second (8) yellow light lamps, first (9) and second (10) yellow light lamps. Also, central station has junction box (23) of first backup light-out relay, first and second junction boxes of second backup light-out relay, junction box (26) of second light-out relay, junction box (27) of first signal relay, first and second junction boxes of second signal relay, junction box (30) of blinking relay. Central station is connected to traffic light by first, second and common linear wires (31), (32) and (33). Traffic light contains first (34) and second (35) junction boxes of light-out relay of first yellow light lamp, first (36), second (37) and third (38) junction boxes of light-out relay of second yellow light lamp.

EFFECT: increased safety of train movement due to substantial reduction of amount of wires in signal cable.

1 dwg