Multi-sensor fire detector with reduced false alarm performance

Details Multi-sensor fire detector with reduced false alarm performance Multi-sensor fire detector with reduced false alarm performance

2005-10-25

2005-10-25

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Condition responsive indicating system

With particular system function

C340S628000, C340S632000, C073S023310

Reexamination Certificate

active

06958689

ABSTRACT:
A method of detecting a combustion chemical in a region and setting an alarm based on concentration levels of the combustion chemical comprises the steps of: monitoring the region for a combustion chemical with a sensor having a measurable parameter which changes in value proportional to concentration levels of the monitored combustion chemical, the measurable parameter being ambient temperature dependent; generating an ambient temperature measurement of the sensor; reading the measurable parameter and ambient temperature measurement; processing the measurable parameter and ambient temperature measurement readings to generate a temperature compensated concentration level of the monitored combustion chemical; and setting an alarm based on the generated temperature compensated concentration level. A fire detector unit for implementing the foregoing described method is also disclosed.

REFERENCES:
patent: 4533520 (1985-08-01), Bossart et al.
patent: 5153924 (1992-10-01), Van Tyne, Sr.
patent: 5289275 (1994-02-01), Ishii et al.
patent: 5369397 (1994-11-01), Wong
patent: 5376924 (1994-12-01), Kubo et al.
patent: 5486811 (1996-01-01), Wehrle et al.
patent: 5526280 (1996-06-01), Consadori et al.
patent: 5528225 (1996-06-01), Sakai et al.
patent: 6181250 (2001-01-01), Brooks, Jr.
patent: 6218951 (2001-04-01), Colvin
patent: 6622543 (2003-09-01), Ohmi et al.
patent: 6788197 (2004-09-01), Thuillard et al.
patent: 2003/0037590 (2003-02-01), Stark
patent: 2003/0058114 (2003-03-01), Miller et al.
patent: 198 50 564 (2000-05-01), None
patent: 1 103 937 (2001-05-01), None
patent: 2 723 235 (1996-02-01), None
patent: WO 02/069297 (2002-09-01), None
European Search Report for Application No. EP 04013579 Dec. 8, 2004 Rosemount Aerospace.
Figaro “Signal Processing and Calibration Techniques for CO Detectors Using TGS2442” Brochure. Apr. 2001 pp. 1-10.

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