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公开(公告)号：WO9826387A3
公开(公告)日：1998-08-13
申请号：PCT/US9722179
申请日：1997-11-26
Applicant: SLC TECHNOLOGIES INC , ENGELHARD SENSOR TECHNOLOGIES , MARMAN DOUGLAS H , PELTIER MARK A , WONG JACOB Y
Inventor： MARMAN DOUGLAS H , PELTIER MARK A , WONG JACOB Y
CPC classification number: G08B17/10 , G08B17/113 , G08B17/117 , G08B29/16 , G08B29/183 , G08B29/20
Abstract: A fire detection system (100) combines a CO2 gas detector (14) with a smoke detector (2). Logic circuitry (400) 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 (810) 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 (222, 233) disables a local air conditioning system thereby helping to isolate and control any existing fire. 00000
Abstract translation: 火灾检测系统（100）将CO 2气体检测器（14）与烟雾探测器（2）组合。 逻辑电路（400）组合了两个检测器的输出，以最小化误报，并提供快速响应时间。 在优选的实施方案中，减少了定期清洁的需要。 在另一优选实施例中，可以提供指示两种不同类型的火焰的两个警报器，例如火焰火焰和非燃烧火焰。 火焰和烟雾的地图（810）可以由系统组装以引导消防员。 在又一个优选实施例中，临时火灾报警指示（222,233）禁用本地空调系统，从而有助于隔离和控制任何现有的火灾。 00000
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公开(公告)号：DE69737459T2
公开(公告)日：2007-11-29
申请号：DE69737459
申请日：1997-11-26
Applicant: SLC TECHNOLOGIES INC , ENGELHARD SENSOR TECHNOLOGIES
Inventor： MARMAN DOUGLAS H , PELTIER MARK A , WONG JACOB Y
IPC: G08B17/10 , G08B17/107 , G08B17/117 , G08B29/16 , G08B29/18 , G08B29/20
Abstract: 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.
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公开(公告)号：AU5371598A
公开(公告)日：1998-07-03
申请号：AU5371598
申请日：1997-11-26
Applicant: ENGELHARD SENSOR TECHNOLOGIES INC , SLC TECHNOLOGIES INC
Inventor： MARMAN DOUGLAS H , PELTIER MARK A , WONG JACOB Y
Abstract: 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.
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公开(公告)号：AU1431497A
公开(公告)日：1997-08-01
申请号：AU1431497
申请日：1996-12-26
Applicant: ENGELHARD SENSOR TECHNOLOGIES INC
Inventor： WONG JACOB Y
Abstract: Multichannel infrared detector assemblies for use in the detection and monitoring of gas concentrations are provided. The detector assemblies include a detector housing having a port for receiving infrared radiation therethrough; a substrate mounted within the detector housing, the substrate having three apertures therein to transmit radiation entering the detector assembly therethrough; a first, a second and a third thermopile detector fabricated on the bottom side of the substrate, the hot junctions of each thermopile detector positioned over one of the apertures in the substrate so as to receive radiation transmitted through the aperture, and the cold junctions of each thermopile detector positioned over the substrate; a first interference bandpass filter mounted on the top side of the substrate so that the first filter covers the aperture above the first detector and the first filter is interposed between the port and the first detector, the first interference bandpass filter designed to pass incident radiation at a first spectral band; a second interference bandpass filter mounted on the top side of the substrate so that the second filter covers the aperture above the second detector and the second filter is interposed between the port and the second detector, the second interference bandpass filter designed to pass radiation at a second spectral band; and a third interference bandpass filter mounted on the top side of the substrate so that the third filter covers the aperture above the third detector and the third filter is interposed between the port and the third detector, the third interference bandpass filter designed to pass radiation at a third spectral band. The disclosed infrared detector assemblies can be used in traditional NDIR gas sensors having an active source or in passive infrared analysis gas sensors which use a passive infrared temperature source and the space between the detector assembly and the source as the sample chamber.
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公开(公告)号：DE69737459D1
公开(公告)日：2007-04-19
申请号：DE69737459
申请日：1997-11-26
Applicant: SLC TECHNOLOGIES INC , ENGELHARD SENSOR TECHNOLOGIES
Inventor： MARMAN DOUGLAS H , PELTIER MARK A , WONG JACOB Y
IPC: G08B17/10 , G08B17/107 , G08B17/117 , G08B29/16 , G08B29/18 , G08B29/20
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：NO308332B1
公开(公告)日：2000-08-28
申请号：NO932669
申请日：1993-07-23
Applicant: ENGELHARD SENSOR TECHNOLOGIES
Inventor： WONG JACOB Y
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公开(公告)号：BR9612406A
公开(公告)日：1999-12-28
申请号：BR9612406
申请日：1996-12-26
Applicant: ENGELHARD SENSOR TECHNOLOGIES
Inventor： WONG JACOB Y
Abstract: Multichannel infrared detector assemblies for use in the detection and monitoring of gas concentrations are provided. The detector assemblies include a detector housing having a port for receiving infrared radiation therethrough; a substrate mounted within the detector housing, the substrate having three apertures therein to transmit radiation entering the detector assembly therethrough; a first, a second and a third thermopile detector fabricated on the bottom side of the substrate, the hot junctions of each thermopile detector positioned over one of the apertures in the substrate so as to receive radiation transmitted through the aperture, and the cold junctions of each thermopile detector positioned over the substrate; a first interference bandpass filter mounted on the top side of the substrate so that the first filter covers the aperture above the first detector and the first filter is interposed between the port and the first detector, the first interference bandpass filter designed to pass incident radiation at a first spectral band; a second interference bandpass filter mounted on the top side of the substrate so that the second filter covers the aperture above the second detector and the second filter is interposed between the port and the second detector, the second interference bandpass filter designed to pass radiation at a second spectral band; and a third interference bandpass filter mounted on the top side of the substrate so that the third filter covers the aperture above the third detector and the third filter is interposed between the port and the third detector, the third interference bandpass filter designed to pass radiation at a third spectral band. The disclosed infrared detector assemblies can be used in traditional NDIR gas sensors having an active source or in passive infrared analysis gas sensors which use a passive infrared temperature source and the space between the detector assembly and the source as the sample chamber.
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公开(公告)号：AU1755597A
公开(公告)日：1997-08-20
申请号：AU1755597
申请日：1997-01-28
Applicant: ENGELHARD SENSOR TECHNOLOGIES
Inventor： WONG JACOB Y
IPC: G08B17/103 , G08B17/10 , G08B17/117 , G08B29/18 , G08B29/20 , G08B29/26
Abstract: A fire detector with a maximum average response time of less than 1.5 minutes is obtained by combining a smoke detector with a CO2 detector that uses NDIR sensor technology. The smoke detector is used to detect smoldering fires and to help prevent false alarms attributable to the CO2 detector. The CO2 detector is used to rapidly detect fires by measuring the rate of change of CO2 concentration. A signal processor generates an alarm signal when a smoldering fire is detected or alarm logic indicates that a fire has been detected.
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公开(公告)号：CA2242293A1
公开(公告)日：1997-07-17
申请号：CA2242293
申请日：1996-12-26
Applicant: ENGELHARD SENSOR TECHNOLOGIES
Inventor： WONG JACOB Y
Abstract: A passive source infrared gas detector (33) uses a passive infrared source and the space between the detector assembly (3, 79) and the source as the sample chamber. The gas detector (33) includes an infrared detector assembly (3, 79) for producing first, second, and third outputs, the first output being indicative of the radiation received at a first non-neutral spectral band which is absorbable by a preselected gas to be detected, the second output being indicative of the radiation received at a first neutral spectral band from the passive infrared source, and the third output being indicative of the radiation received at a second neutral spectral band from the passive infrared source. Signal processing means manipulate the three outputs to determine the concentration of the gas being monitored. Additional detectors can be added to the detector assembly to detect radiation at spectral bands characteristic of additional gases.
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公开(公告)号：EP0877995A4
公开(公告)日：2001-04-04
申请号：EP97904879
申请日：1997-01-28
Applicant: ENGELHARD SENSOR TECHNOLOGIES
Inventor： WONG JACOB Y
IPC: G08B17/103 , G08B17/10 , G08B17/117 , G08B29/18 , G08B29/20 , G08B29/26
CPC classification number: G08B29/183 , G08B17/10 , G08B17/113 , G08B17/117 , G08B29/26
Abstract: A fire detector that combines a CO2 gas detector with a photoelectric smoke detector to minimize false alarms by logic means that can be integrated into a single chip that can have an ASIC section and a microprocessor section is disclosed. The CO2 gas detector can be single or dual channel. The CO2 gas detector and the photoelectric smoke detector can be separated or combined in a single device that uses a common light source. Also, the CO2 gas detector and photoelectric smoke detector can be combined on a single substrate within a common housing. The smoke based fire detection criteria of the fire detector is dynamically adjusted in response to the measurements formed by the CO2 gas detector.
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