Method for dynamically adjusting criteria for detecting fire thr

Details Method for dynamically adjusting criteria for detecting fire thr Method for dynamically adjusting criteria for detecting fire thr

1997-07-29

2000-08-22

Wu, Daniel J.

Communications: electrical

Condition responsive indicating system

Specific condition

340630, 340632, G08B 1710

Patent

active

061079251

ABSTRACT:
A fire detector is equipped with a smoke detector and electrical circuitry for declaring a fire alarm if a smoke concentration based fire detection criteria is satisfied. A CO.sub.2 detector is included in the fire detector for forming an a priori estimate of the probability of the existence of a fire. If the a priori probability rises above a predetermined level, the smoke concentration base fire detection criteria of the smoke detector are altered to allow the more rapid detection of a fire.

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