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Method and arrangement for transmitting data via an electric conductor of a current network

  • US 9,246,547 B2
  • Filed: 07/05/2013
  • Issued: 01/26/2016
  • Est. Priority Date: 07/09/2012
  • Status: Active Grant
First Claim
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1. A method for transmitting data between a first node and a plurality of second nodes via an electrical conductor of an electricity grid, the second nodes comprising a first source second node and a second source second node, the method comprising:

  • coupling the electrical conductor to the first node by a first impedance-transparent coupling device;

    coupling the electrical conductor to the second nodes by at least one second impedance-transparent coupling device;

    transmitting a carrier signal from the first node via the electrical conductor;

    rectifying the carrier signal at each second node to supply power to the second nodes;

    transmitting first response data to the first node by preparing a first modulated carrier signal, the first modulated carrier signal being prepared by modulating the carrier signal at the first source second node using load modulation; and

    transmitting second response data to the first node by preparing a second modulated carrier signal, the second modulated carrier signal being prepared by modulating the carrier signal at the second source second node using load modulation.

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