Multi-dimensional vector-based occupancy sensor and method of operating same
US6759954B1 · kind B1 · utility
122Cited by
39References
20Claims
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Key dates
| Filing date | Sep 11, 2000 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multiple dimension vector-based occupancy sensor. One or more sensors (for example, ultrasonic and/or infrared sensors) are used to produce one or more occupancy estimator vectors. The individual dimensions of the one or more occupancy estimator vectors are combined using a fusion based detection algorithm to produce a combined estimator signal. The combined estimator is then used to switch electrical loads when the combined estimator signal is above a predetermined threshold. The result is an occupancy sensor that has a very high probability of occupancy detection and a low probability of false tripping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.