Patent ID: 11938978
Assignee: SIEMENS MOBILITY GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A grade crossing predictor (GCP) system comprising:
a first transmitter configured to transmit a first signal over rails of a railroad track and a first receiver configured to detect a first response signal,
a second transmitter configured to transmit a second signal over the rails of the railroad track and a second receiver configured to detect a second response signal,
wherein the first transmitter and first receiver are preprogrammed to a first frequency,
wherein the second transmitter and second receiver are preprogrammed to a second frequency, and
wherein the first transmitter and the second receiver are configured to utilize a same first electrical connection to the rails, and wherein the second transmitter and the first receiver are configured to utilize a same second electrical connection to the rails.