Electric power consumption measuring mechanism
US9335353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2013 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Nov 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R35/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method of measuring power consumption in an appliance is provided. An electrical characteristic of a power signal, such as a voltage component and/or a current component, can be detected at the appliance. The detected electrical characteristic can be processed using a signal processor. During signal processing, the detected electrical characteristic can be shifted based on a predetermined threshold and converted to a digital signal. An electrical characteristic offset can be determined based on an average electrical characteristic value of a plurality of detected electrical characteristics. The difference between the electrical characteristic offset value and an instantaneously detected electrical characteristic value can be used to determine power consumption of the appliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.