Lighting status signaling system and method
US10028354B2 · kind B2 · utility
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1References
23Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting status signaling system including a lighting fixture having a light, a light driver connected to the light, and a monitor circuit connected to the light and to the light driver. The monitor circuit is configured to monitor a voltage level at an output of the light driver. A sensing circuit is coupled to the monitor circuit via a sensing wire independent of a power wire to the lighting fixture. A lighting controller is connected to the sensing circuit via the sensing wire and configured to determine a lighting status of the lighting fixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.