Ultra low power NDIR carbon dioxide sensor fire detector

Details Ultra low power NDIR carbon dioxide sensor fire detector Ultra low power NDIR carbon dioxide sensor fire detector

2007-05-08

2007-05-08

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S339130, C250S339010, C250S339120, C250S339030

Reexamination Certificate

active

11284460

ABSTRACT:
A fire detector and method for generating an alarm signal in response to a fire uses an NDIR CO2sensor to generate a detector signal based upon a 15μ absorption band of CO2and generates an alarm signal when a signal processor receives the detector signal and a preselected criterion is met that is indicative of the onset of a fire based upon an analysis of the detector signal using a detection algorithm that relies upon a trending pattern of the detector signal such as recognizing a substantial drop in the detector signal strength. The NDIR CO2sensor can also generate a reference detector signal based upon a 9.0μ neutral band with a FWHM=0.5μ while the signal processor utilizes a detection algorithm that is based upon a synchronized output signal representative of CO2concentration to generate an alarm signal when a preselected criterion indicative of the onset of a fire is met.

REFERENCES:
patent: 3793525 (1974-02-01), Burch et al.
patent: 3811776 (1974-05-01), Blau et al.
patent: 4578762 (1986-03-01), Wong
patent: 4694173 (1987-09-01), Wong
patent: 5053754 (1991-10-01), Wong
patent: 5079422 (1992-01-01), Wong
patent: 5103096 (1992-04-01), Wong
patent: 5163332 (1992-11-01), Wong
patent: 5369397 (1994-11-01), Wong
patent: 5494640 (1996-02-01), Simon et al.
patent: 5592147 (1997-01-01), Wong
patent: 5691704 (1997-11-01), Wong
patent: 5721430 (1998-02-01), Wong
patent: 5767776 (1998-06-01), Wong
patent: 5798700 (1998-08-01), Wong
patent: 5800360 (1998-09-01), Kisner et al.
patent: 5945924 (1999-08-01), Marmon et al.
patent: 5966077 (1999-10-01), Wong
patent: 6107925 (2000-08-01), Wong
patent: 6166647 (2000-12-01), Wong
patent: 2392721 (2004-03-01), None

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