# US 10,372,088 B2 · Power consumption management device, power consumption management system, power consumption management method, and power consumption management program

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- Number: US 10,372,088 B2
- Document ID: US10372088B2
- Status: Granted
- Kind: B2
- Application number: 13/934,572
- Filed: 2013-07-03
- Published: 2014-01-16
- Granted: 2019-08-06
- Earliest claimed: 2012-07-11
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Yoichiro Sako; Takanori Washiro; Kazutoshi Serita; Taro Tadano; Kazuyoshi Takemura; Kuniya Hayashi; Kayoko Tanaka
- Web page: https://patentgrep.com/patent/US10372088B2

## CPC

- H02J 3/003: {Load forecast, e.g. methods or systems for forecasting future load demand}
- G05B 13/02: electric
- H02J 13/12: Monitoring network conditions, e.g. electrical magnitudes or operational status
- H02J 13/1337: {involving the use of Internet protocols}
- H02J 13/14: the power network being locally controlled, e.g. home energy management systems [HEMS]
- H02J 13/333: the equipment forming part of substations
- H02J 3/14: by switching loads on to, or off from, the networks, e.g. progressively balanced loading
- H02J 2105/42: Home appliances
- Y02B 70/30: Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B 70/3225: Demand response systems, e.g. load shedding, peak shaving
- Y02B 90/20: Smart grids as enabling technology in buildings sector (smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00)
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y04S 10/30: State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
- Y04S 20/00: Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S 20/222: Demand response systems, e.g. load shedding, peak shaving
- Y04S 20/242: Home appliances
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

There is provided a power consumption management device including a power measurement unit configured to measure power consumption of an electrical device, an environmental factor measurement unit configured to measure a factor of an environment in which the electrical device is used, a storage unit configured to store a predicted value related to the power consumption in which a value of the factor of the environment is designated as a parameter, and a calculation/control unit. The calculation/control unit obtains the predicted value related to the power consumption stored in the storage unit based on the value of the factor of the environment measured by the environmental factor measurement unit and compares the obtained predicted value related to the power consumption to an actual measurement value related to the power consumption obtained based on a power consumption value measured by the power measurement unit.

## Claims

### Claim 1

A power consumption management device comprising:
a power measurement unit configured to measure an actual power consumption value of an electrical device;
an environmental factor measurement unit configured to measure a factor of an environment in which the electrical device is used;
a storage unit configured to store a predicted value related to the power consumption in which a value of the factor of the environment is designated as a parameter, the predicted value being based on at least one of a non-measured original predicted value and a previously measured power consumption value of the electrical device; and
a calculation/control unit,
wherein the calculation/control unit obtains the predicted value related to the power consumption stored in the storage unit based on the value of the factor of the environment measured by the environmental factor measurement unit, and compares the obtained predicted value to the actual power consumption value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is in a prescribed range, the calculation/control unit replaces the predicted value stored on the storage unit with an updated predicted value that is based on the actual power consumption value, while designating the value of the factor of the environment measured by the environmental factor measurement unit as the parameter, wherein the updated predicted value is an average of the actual power consumption value and the predicted value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is out of a prescribed range, the calculation/control unit issues a warning, but does not replace the predicted value stored on the storage unit with an updated predicted value, and
wherein the warning is issued as a sound, an image displayed on a display device, or a video displayed on a display device.

### Claim 2 (depends on 1)

The power consumption management device according to claim 1, wherein the calculation/control unit is configured to:
store the actual power consumption value in the storage unit;
obtain a change amount between measured power consumption values before and after an elapse of a predetermined time; and
issue a warning when the change amount is greater than or equal to a predetermined value.

### Claim 3 (depends on 1)

The power consumption management device according to claim 1, wherein the factor of the environment is at least a temperature.

### Claim 4 (depends on 1)

The power consumption management device according to claim 1,
wherein the predicted value is based on an estimated average power consumption, and
wherein the actual power consumption value is based on an actual measurement value of the average power consumption.

### Claim 5 (depends on 1)

The power consumption management device according to claim 1,
wherein the predicted value is based on an estimated peak level of the power consumption, and
wherein the actual power consumption value is based on an actual measurement value of the peak level of the power consumption.

### Claim 6 (depends on 1)

The power consumption management device according to claim 1,
wherein the predicted value is based on an estimated peak integration value of the power consumption, and
wherein the actual power consumption value is based on an actual measurement value of the peak integration value of the power consumption.

### Claim 7 (depends on 1)

The power consumption management device according to claim 1,
wherein the predicted value is based on an estimated number of peak occurrences of power consumption per unit time, and
wherein the actual power consumption value is based on an actual measurement value of the number of peak occurrences of the power consumption per unit time.

### Claim 8 (depends on 1)

The power consumption management device according to claim 1, wherein the power measurement unit, the environmental factor measurement unit, the storage unit, and the calculation/control unit are arranged in the electrical device or in the vicinity of the electrical device.

### Claim 9 (depends on 1)

The power consumption management device according to claim 1,
wherein the power measurement unit, the environmental factor measurement unit, and the calculation/control unit are arranged in the electrical device or in the vicinity of the electrical device, and
wherein the storage unit is arranged within a computer connected via a communication line.

### Claim 10 (depends on 1)

The power consumption management device according to claim 1,
wherein the power measurement unit and the environmental factor measurement unit are arranged in the electrical device or in the vicinity of the electrical device, and
wherein the storage unit and the calculation/control unit are arranged within a computer connected via a communication line.

### Claim 11 (depends on 1)

The power consumption management device according to claim 1, wherein the electrical device is an air conditioner, a refrigerator, a washing machine, a heater, a television receiver, or a clothes dryer.

### Claim 12 (depends on 1)

The power consumption management device according to claim 1, wherein the prescribed range is twice the value of the standard deviation of the predicted value relative to the actual power consumption value.

### Claim 13 (depends on 1)

The power consumption management device according to claim 1, wherein the warning is issued as a sound.

### Claim 14 (depends on 1)

The power consumption management device according to claim 1, further comprising a display device, and the warning is issued as an image displayed on the display device.

### Claim 15 (depends on 1)

The power consumption management device according to claim 1, further comprising a display device, and the warning is issued as a video displayed on the display device.

### Claim 16

A power consumption management system comprising:
a plurality of power consumption management devices, each of which includes
a power measurement unit configured to measure an actual power consumption value of an electrical device, and
an environmental factor measurement unit configured to measure a factor of an environment in which the electrical device is used; and
a computer configured to be connected to each power consumption management device via a communication line and include a storage unit and a calculation/control unit, the storage unit configured to store a predicted value related to the power consumption in which a value of the factor of the environment is designated as a parameter, the predicted value being based on at least one of a non-measured original predicted value and a previously measured power consumption value of the electrical device,
wherein the calculation/control unit obtains a predicted value related to the power consumption stored in a storage unit based on a value of the factor of the environment measured by the environmental factor measurement unit of each power consumption management device, compares the obtained predicted value to the actual power consumption value, and transmits a comparison result to the power consumption management device via the communication line,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is in a prescribed range, the calculation/control unit replaces the predicted value stored on the storage unit with an updated predicted value that is based on the actual power consumption value, while designating the value of the factor of the environment measured by the environmental factor measurement unit as the parameter, wherein the updated predicted value is an average of the actual power consumption value and the predicted value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is out of a prescribed range, the calculation/control unit issues a warning, but does not replace the predicted value stored on the storage unit with an updated predicted value, and
wherein the warning is issued as a sound, an image displayed on a display device, or a video displayed on a display device.

### Claim 17

A power consumption management method comprising:
measuring an actual power consumption value of an electrical device;
storing a predicted value related to power consumption in which a value of a factor of an environment is designated as a parameter in a storage unit, the predicted value being based on at least one of a non-measured original predicted value and a previously measured power consumption value of the electrical device;
obtaining the predicted value related to the power consumption stored in the storage unit based on a measurement result of the factor of the environment in which an electrical device is used;
comparing the obtained predicted value to the actual power consumption value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is in a prescribed range, the calculation/control unit replaces the predicted value stored on the storage unit with an updated predicted value that is based on the actual power consumption value, while designating the value of the factor of the environment measured by the environmental factor measurement unit as the parameter, wherein the updated predicted value is an average of the actual power consumption value and the predicted value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is out of a prescribed range, the calculation/control unit issues a warning, but does not replace the predicted value stored on the storage unit with an updated predicted value, and
wherein the warning is issued as a sound, an image displayed on a display device, or a video displayed on a display device.

### Claim 18

A power consumption management program stored on a non-transitory computer readable storage medium, which when executed, causes a computer to:
measure an actual power consumption value of an electrical device
store a predicted value related to power consumption in which a value of a factor of an environment is designated as a parameter in a storage unit, the predicted value being based on at least one of a non-measured original predicted value and a previously measured power consumption value of the electrical device;
obtain the predicted value related to the power consumption stored in the storage unit based on a measurement result of the factor of the environment in which an electrical device is used; and
compare the obtained predicted value to the actual power consumption value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is in a prescribed range, the calculation/control unit replaces the predicted value stored on the storage unit with an updated predicted value that is based on the actual power consumption value, while designating the value of the factor of the environment measured by the environmental factor measurement unit as the parameter, wherein the updated predicted value is an average of the actual power consumption value and the predicted value,
wherein, when a value of [(the actual power consumption value)−(the predicted value)] is out of a prescribed range, the calculation/control unit issues a warning, but does not replace the predicted value stored on the storage unit with an updated predicted value, and
wherein the warning is issued as a sound, an image displayed on a display device, or a video displayed on a display device.
