Lighting control using scan and step change
US8305014B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting control system determines an optimal way to operate one or more lamps to achieve a desired light output and/or to control one or more parameters. The lighting control system includes a detection circuit and a control circuit. The control circuit performs a wide-scope scan and a narrow-scope scan to find the best way to operate the lamps. The wide-scope scan includes driving the lamp(s) using multiple output settings, evaluating the light output at each setting, and determining which setting produced the best results. The narrow-scope scan includes making small adjustments to the settings to better refine the light output. The detection circuit includes one or more sensors for providing measurements of the light output by the lamp(s) or of a controller parameter, such as power consumption, for each setting evaluated by the control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.