Emergency lighting system with improved monitoring
US7400226B2 · kind B2 · utility
27Cited by
21References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jun 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/172
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency lighting unit includes a lamp, a backup battery, and controller and a network interface. The controller connects the backup battery to the lamp upon detection of an emergency condition and loss of main power. The network interface interfaces with and receives commands via a fire alarm network. Each emergency lighting unit has a unique identifier with respect to the fire alarm network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.