Equipment power management system

Patent metadata

Field	Value
Publication number	US-9825469-B2
Application number	US-201614991345-A
Country	US
Kind code	B2
Filing date	Jan 8, 2016
Priority date	Oct 25, 2010
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

An equipment power management system in accordance with the present invention has a plurality of electrical devices and a control device. The electrical devices can operate in any one of multiple operational states different from each other in power consumption of a commercial power source. The control device switches the operational state of an electrical device to that of a smaller power consumption of the commercial power source in ascending order from the electrical device of the lowest priority when a receiving power amount of the whole equipment including the plurality of electrical devices exceeds a first threshold value until the receiving power amount falls below a second threshold value which is lower than or equal to the first threshold value.

First claim

The invention claimed is:

1. An equipment power management method to be carried out by a control device connected through a communication cable with a plurality of electrical devices operable in any one of multiple operational states different from each other in power consumption, each of the electrical devices consuming power supplied by a commercial power source, the method comprising:
switching the operational state of an electrical device to that of a smaller power consumption in ascending order from the electrical device of lower priority when a receiving amount of power of the plurality of electrical devices exceeds a first threshold value until the receiving amount of power falls below a second threshold value which is lower than or equal to the first threshold value;
wherein the control device repeats the process of selecting the electrical device of the lowest priority as the reduction object from the electrical devices operating in an operational state other than that of the least power consumption, and switching the operational state of the selected electrical device to that of a smaller power consumption, a plurality of times until the receiving amount of power falls below the second threshold value, and
wherein when each electrical device has the lowest priority, the control device preferentially selects an electrical device operating in the operational state of a power consumption greater than the least power consumption.

2. The equipment power management method of claim 1 , wherein the electrical device operating in the operational state of the power consumption greater than the least power consumption is an electrical device operating in an operational state of a largest power consumption.

Assignees

• Yokoyama Jun
• Nec Corp

Inventors

• Yokoyama Jun

Classifications

• Y02B70/3225

  Demand response systems, e.g. load shedding, peak shaving · CPC title

• Y04S20/222

  Demand response systems, e.g. load shedding, peak shaving · CPC title

• G06F1/32

  Means for saving power · CPC title

• Y04S20/242

  Home appliances · CPC title

• H02J2105/42

  Home appliances · CPC title