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Sampling energy meter reading system using demand response of energy prices for a power saving mode

  • US 9,291,477 B2
  • Filed: 08/25/2011
  • Issued: 03/22/2016
  • Est. Priority Date: 09/03/2010
  • Status: Active Grant
First Claim
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1. An energy metering system comprising:

  • a meter including;

    a metering unit configured to generate energy consumption information based on loads at various locations;

    a memory configured to store the energy consumption information;

    a communication unit configured to receive and transmit the energy consumption information;

    a current-time measuring unit configured to measure a current time using a real-time clock;

    a battery configured to supply power to the communication unit;

    a controller configured to;

    cause the communication unit to receive control data related to a transmission time from a collector;

    cause the communication unit to transmit the energy consumption information or an alarm message to the collector when the voltage of the battery decreases to a certain value or less;

    determine the transmission time based on the control data;

    monitor whether the transmission time is reached by using the measured current time;

    cause the communication unit to transmit the energy consumption information to the collector via a first network if the transmission time is reached; and

    operate in a power saving mode during which power is entirely interrupted except at the transmission time;

    the collector configured to transmit the energy consumption information received from the communication unit to a server via a second network and to generate the control data based on information related to an energy pricing system and transmit the control data and an energy cost received from the server to the communication unit via the first network; and

    the server configured to transmit the energy cost to the collector and receive the energy consumption information from the collector via the second network,wherein the transmission time includes a time at which the energy cost changes.

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