Energy information system and sub-measurement board for use therewith
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United States of America Patent
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Apr 27, 2004
Issued Date -
N/A
app pub date -
Aug 27, 2001
filing date -
Feb 23, 1998
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Abstract
An energy information system and sub-measurement board for use therewith allows and energy information service provider to measure energy usage at a customer location. The sub-measurement board is connected to an energy distribution panel located at the customer location and measures energy usage of individual circuits of the distribution panel. The sub-measurement board outputs a load profile of the energy usage and transmits the load profile to the energy information service provider via a wide area network (WAN). The load profile is processed by the energy service provider and posted on a server for access by the customer. Voltages and currents are input into a microprocessor circuit, which compares the currents one at a time to the voltages to match the current with the voltage of the same individual circuit and to calculate the load profile of the individual circuit.
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