System for monitoring operability of fire event sensors
US6081195A · kind A · utility
Inventor
Key dates
| Filing date | Jan 27, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Jan 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/043
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for monitoring the operability of fire event sensors having a programmable logic circuit which automatically and continuously analyzes whether readings obtained from fire event sensors satisfy multiple predetermined parameters. Parameters defining operability may include the mere receipt of a signal from a sensor, elapsed time between signals, substantive quality of signals, sensor sensitivity, strength of power source, or other parameters. The parameters are modifiable to facilitate many different types of sensors without the addition of any additional circuitry. The system also includes manual testing of the self-checking routine itself as well as checking the circuitry of a fire detection unit and strength of power source. Means for resetting the system is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.