公开(公告)号：WO1997027571A1

公开(公告)日：1997-07-31

申请号：PCT/US1997001264

申请日：1997-01-28

Applicant: ENGELHARD SENSOR TECHNOLOGIES, INC. ,  WONG, Jacob, Y.

Inventor： ENGELHARD SENSOR TECHNOLOGIES, INC.

IPC: G08B17/10

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.

Abstract translation: 一种将（CO2）气体检测器与光电烟雾探测器组合在一起的火灾探测器，用于将可集成到可以具有ASIC部分和微处理器部分的单个芯片中的逻辑手段使误报最小化。 （CO2）气体检测器可以是单通道或双通道。 （CO2）气体检测器和光电烟雾探测器可以在使用普通光源的单个设备中分离或组合。 此外，（CO2）气体检测器和光电式烟雾探测器可以在公共壳体内的单个基板上组合。 根据由（CO2）气体检测器形成的测量结果动态调整火灾探测器的基于烟雾的火灾检测标准。

公开(公告)号：WO1998026387A2

公开(公告)日：1998-06-18

申请号：PCT/US1997022179

申请日：1997-11-26

Applicant: SLC TECHNOLOGIES, INC. ,  ENGELHARD SENSOR TECHNOLOGIES, INC. ,  MARMAN, Douglas, H. ,  PELTIER, Mark, A. ,  WONG, Jacob, Y.

Inventor： SLC TECHNOLOGIES, INC. ,  ENGELHARD SENSOR TECHNOLOGIES, INC.

IPC: G08B00/00

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.

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。 在另一个优选实施例中，可以提供两个指示两种不同类型的火焰的报警器，例如燃烧火焰和非燃烧火灾。 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。

公开(公告)号：WO1997025613A1

公开(公告)日：1997-07-17

申请号：PCT/US1996020796

申请日：1996-12-26

Applicant: ENGELHARD SENSOR TECHNOLOGIES, INC.

Inventor： ENGELHARD SENSOR TECHNOLOGIES, INC. ,  WONG, Jacob, Y.

IPC: G01N21/61

CPC classification number: G01N21/3518 ,  G01N21/3504

Abstract: A passive source infrared gas detector (42) uses an ambient temperature source and the space between the detector assembly and the source as the sample chamber. The gas detector (42) includes an infrared detector assembly 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.

Abstract translation: 被动源红外气体检测器（42）使用环境温度源和检测器组件与源之间的空间作为样品室。 气体检测器（42）包括用于产生第一，第二和第三输出的红外检测器组件，第一输出指示在第一非中性光谱带处接收的辐射，该第一非中性光谱带可被待选择的被检测气体吸收， 第二输出表示在来自被动红外源的第一中性光谱带处接收到的辐射，并且第三输出指示在来自被动红外源的第二中性光谱带处接收的辐射。 信号处理装置操纵三个输出来确定被监测气体的浓度。 可以向检测器组件添加附加的检测器，以检测附加气体特征的光谱带的辐射。