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Network system

  • US 9,337,658 B2
  • Filed: 02/17/2011
  • Issued: 05/10/2016
  • Est. Priority Date: 02/17/2010
  • Status: Active Grant
First Claim
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1. A network system comprising:

  • a home network consuming energy generated from an energy generating unit provided at a utility network and including an electric product operating based on energy information including at least one energy price information; and

    a power adjusting device through which a current or a voltage supplied for an operation of the electric product is passed, the power adjusting device being configured to reduce energy cost or an energy amount used by adjusting a voltage or current amount applied to the electric product based on the energy information,wherein the power adjusting device comprises;

    a body;

    a communication unit disposed inside the body to communicate with an energy managing unit having the energy information;

    a power measuring unit disposed inside the body to sense power amount consumed in the electric product;

    a power reducing unit to reduce current or power supplied to the electric product;

    a memory to store information of a reference power amount; and

    a controller to determine current or power supplied to the electric product based on the information of the consumed power amount and the reference power amount,wherein the controller controls the power reducing unit such that the power reducing unit reduces current applied to the electric product when the consumed power amount exceeds the reference power amount, and increases current applied to the electric product when the consumed power amount becomes lower than the reference power amount.

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