Distributed lighting control of a corridor or open areas
US8493209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses of distributed lighting control are disclosed. One method includes a sensor sensing a change of light intensity per unit of time greater than a sense threshold. If a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, then the light is activated at a preselected corridor light intensity. If the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold, then the light is activated at a preselected non-corridor light intensity. For an embodiment, the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.