Grade crossing control system and method for determining track circuit impedance
AssigneeSiemens Mobility GmbH
InventorBrian Joseph Hogan
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Abstract
A grade crossing control system includes a track transmitter configured to couple to rails of a railroad track, and a track receiver configured to couple to the rails of the railroad track, wherein the track transmitter comprises a signal source and an amplifier, and is configured to transmit a first signal to the rails, wherein the track receiver is configured to measure a second signal in response to the first signal, and wherein the track transmitter is configured to provide feedback measurement information of the first signal.
Claims13
A grade crossing control system comprising:
- a track transmitter configured to couple to rails of a railroad track, and
- a track receiver configured to couple to the rails of the railroad track,
- wherein the track transmitter comprises a signal source and an amplifier, and is configured to generate and transmit a first signal to the rails utilizing the signal source and the amplifier,
- wherein the track receiver is configured to measure a voltage value produced in response to the first signal at the rails,
- wherein the track transmitter is configured to provide feedback measurement information of the first signal, and
- wherein the signal source comprises a current source and the feedback measurement information of the first signal is an actual current value at a specific frequency.
A method for determining a track circuit impedance comprising:
- transmitting a first signal to rails of a railroad track utilizing a signal source,
- measuring a voltage value at the rails of the railroad track in response to the first signal, and
- obtaining feedback measurement information of the first signal,
- wherein the signal source comprises a current source and the feedback measurement information of first signal comprises an actual current value at a specific frequency.
Dependencies are inferred from the claim text.