METHOD FOR GENERATION AND TRANSMISSION OF AUTOMATIC TRAIN CONTROL SIGNALS IN AUTOMATIC BLOCK SIGNAL SYSTEM WITH TONAL RAIL CIRCUITS AND CENTRALISED LAYOUT OF EQUIPMENT Russian patent published in 2015 - IPC B61L3/18 B61L23/18 

FIELD: electricity.

SUBSTANCE: method includes check-up of rail circuits, availability of track sections, determination of the moment of rail circuit shunting by a train, connection to the engaged rail circuit at this moment, receipt of automatic train control (ATL) signals by the train. The connected sources of code ALT signals are synchronised against the carrier frequency phase and commencement of generation of cyclic code signals, at shunting of the next rail circuit two sources of code signals are coupled simultaneously to the first two rail circuits in direction of traffic when the transmitted codes coincide, when the codes transmitted to rail circuits and respectively to the rail line do not coincide then only the first signal code in direction of traffic is remained and connection of the second source and next sources is delayed till the moment of other circuits shunting in direction of traffic.

EFFECT: improved operational reliability of train signalling in the automatic block signal system without block joints when a train passes sections of adjacent rail circuits.

2 cl, 1 dwg