INTERSTATION TRACK CONTROL DEVICE Russian patent published in 2024 - IPC B61L23/16 B61L3/20 B61L1/18 

FIELD: railway automation.

SUBSTANCE: invention relates to railway automation and telemechanics. Interstation track control device comprises a rail line limited by insulating joints, to which matching transformers of supply ends are connected through limiting resistors, as well as matching transformers of relay ends. At the station block post (A), there is a pulse sensor connected to a transmitter relay. At the station block post (B), the pulse relay repeater is connected through a contact of the pulse track relay to a DC source to which control relays and a pulse operation decoder are connected. At the station block post (A), first, second and third frequency generators are connected to the power and communication line through appropriate filters and interstation track control relays. At the station block post (B), a DC source is connected to the power and communication line through a protective choke of the transmitting end and a control relay contact. Also, band-pass filters of the first, second and third frequencies at the rail circuits supply ends are connected to the supply and communication line on interstation track. Pulse track relays are connected to matching transformers through band-pass filters of the first, second and third frequencies respectively.

EFFECT: increasing the reliability of devices for monitoring the vacancy of a railway section.

1 cl, 1 dwg