Dual mode system for detecting occupancy of a room
US11181878B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Apr 24, 2020 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45016
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system improve on the accuracy of and power consumption of occupancy detection systems. Embodiments may provide a dual mode system that includes a passive infrared sensor with low power consumption and a RADAR-based sensor with higher power consumption that is only powered when the system determines a room is occupied with the passive sensor and no new movement is detected after a threshold duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.