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Cable tracking by electromagnetic emission

  • US 10,382,094 B2
  • Filed: 11/28/2017
  • Issued: 08/13/2019
  • Est. Priority Date: 11/28/2017
  • Status: Active Grant
First Claim
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1. A method for tracking a course of a cable using electromagnetic waves, said method comprising:

  • sending, by a first transceiver to a second transceiver, a first signal wirelessly in a linear line, said first transceiver and said second transceiver each comprising a receiver and a transmitter,sending, by the second transceiver back to the first transceiver, the first signal in the linear line;

    determining a first distance between the first transceiver and the second transceiver by determining a total transmission time for a first wireless signal travelling from the first transceiver to the second transceiver and back to the first transceiver,transmitting, from the first transceiver into the cable, a second signal, said first signal and said second signal being phase aligned,receiving, by the second transceiver wirelessly from the cable, the second signal; and

    determining a second distance between the first transceiver and the second transceiver by comparing a phase difference between the first signal received by the second transmitter and the second signal received by the second transmitter.

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