A fire detection system combines a CO2 gas detector with a smoke detector. Logic circuitry combines the outputs of both detectors to minimize false alarms and provide a rapid response time. In a preferred embodiment the need for periodic cleaning is reduced. In a further preferred embodiment, two alarms indicative of two different types of fires, for example flaming fires and nonflaming fires are available. A map of flaming fire and smoke may be assembled by the system to guide the firefighters. In a yet another preferred embodiment, a tentative fire alarm indication disables a local air conditioning system thereby helping to isolate and control any existing fire.
申请公布号
EP0944887(A1)
申请公布日期
1999.09.29
申请号
EP19970950817
申请日期
1997.11.26
申请人
SLC TECHNOLOGIES, INC;ENGELHARD SENSOR TECHNOLOGIES, INC.
发明人
MARMAN, DOUGLAS, H.;PELTIER, MARK, A.;WONG, JACOB, Y.