Methods and systems for monitoring lighting control and indicating failure
US6417775B1 · kind B1 · utility
3Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for monitoring relay status using a lighting control panel is disclosed. The lighting control panel is used, for example, to control lighting throughout a building. The method includes the steps of commanding at least one relay to an on or off position from the lighting control panel, monitoring the status of the at least one relay from the lighting control panel, and setting the state of an indicator on the lighting control panel to show relay OFF, relay ON, or relay failed based on a monitored relay status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.