Patent ID: 11912322
Assignee: ALSTOM TRANSPORT TECHNOLOGIES
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A track circuit for a railway line, comprising at least:
a plurality of rails coupled to form a track section having a predefined length;
a transmitter coupled to said track section at a first end of said track section and a receiver coupled to said track section at a second end of said track section, the transmitter configured to transmit over said track section towards the receiver at least one signal comprising at least one data packet part, and the receiver configured to receive the at least one signal output by the transmitter and transmitted via the track section; and
a controller configured to:
decode the at least one signal received at said receiver to determine the at least one data packet part received;
simulate one or more signals by varying an actual value input for one or more parameters of a set of electrical parameters of the track circuit, each simulated signal corresponding to an actual set of values input for the set of electrical parameters;
compare each simulated signal generated with the at least one signal received at said receiver until finding at least a part of a simulated signal that matches a corresponding part of the signal received at said receiver; and
estimate as the actual electrical parameters of the track circuit the actual set of values of the electrical parameters corresponding to the simulated signal that matches the at least one signal received at said receiver.