Fault detection for appliances based on energy consumption data
US11624761B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q50/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting a fault in a device is described. The method comprises receiving an energy consumption signal for the device, the energy consumption signal indicating a varying energy consumption of the device over time during operation of the device. A basis function is selected, the basis function defining a signal pattern associated with a known fault type. A correlation between the basis function and the energy consumption signal is evaluated. Presence of an operating fault in the device is determined in dependence on the correlation, and an output is generated based on the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.