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System and method for detecting an arc fault in a power line signal including a communication signal modulated on an AC power signal

  • US 10,352,980 B2
  • Filed: 03/01/2018
  • Issued: 07/16/2019
  • Est. Priority Date: 09/25/2012
  • Status: Active Grant
First Claim
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1. A method of communicating over a power line, the method comprising:

  • communicating a power line signal over the power line, wherein the power line signal comprises a communication signal modulated on an alternating current (AC) power signal, wherein the communication signal is communicated according to a power line network protocol, wherein a power spectrum of the power line signal comprises at least one first frequency band and at least one second frequency band that is different from the at least one first frequency band, wherein, in accordance with the power line network protocol, a power of the power line signal in the at least one first frequency band is attenuated in comparison to the power of the power line signal in the at least one second frequency band; and

    performing arc fault detection on spectral portions of the power line signal that are within the at least one first frequency band.

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