RAILWAY SAFETY SYSTEM AND RESPECTIVE METHOD Russian patent published in 2015 - IPC B61L23/00 

FIELD: physics; control.

SUBSTANCE: invention relates to railway automation. The system enables to brake a train travelling along a railway track, when crossing a railway traffic light controlled from a control tower. The tower comprises a ground-based device which includes an encoder connected to the traffic light state control line, telegram generating means, at least one signalling beacon mounted on the track near the traffic light of interest. The beacon is connected to the encoder and has a means of transmitting a radio signal corresponding to the telegram generated by the encoder. An on-board device which satisfies ETCS standards comprises an antenna which receives a radio signal from the beacon, a computation and control unit connected to the antenna, processes the received signal and includes means of actuating the train braking system. The generating means of the encoder generate "passage prohibited" type telegrams which are compatible with ETCS standards and contain a "passage prohibited" parameter when the on-board device is in "ETCS Level 0" mode and the traffic light is in "passage prohibited" state. The computation and control unit of the on-board device is capable of interpreting the "passage prohibited" parameter as instructions to turn on train brakes, wherein the on-board device remains in "ETCS Level 0" mode. An emergency braking method used by the system when passing a traffic light comprises: when the traffic light is in "passage prohibited" state, the encoder generates a "passage prohibited" type telegram compatible with ETCS standards and containing a "passage prohibited" parameter. The signalling beacon transmits a radio signal corresponding to the "passage prohibited" telegram and, since the on-board device is in "ETCS Level 0" mode, the antenna of the on-board device receives the transmitted radio signal. Further, the received signal is processed to retrieve the "passage prohibited" parameter and the train braking system is actuated, wherein the on-board device remains in "ETCS Level 0" mode.

EFFECT: safer movement.

11 cl, 1 dwg