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公开(公告)号：US09746363B2
公开(公告)日：2017-08-29
申请号：US14516727
申请日：2014-10-17
发明人： Kemal Ajay , Arjun Vinoo Caprihan , Michael Rezny
IPC分类号： G01F1/66 , G01N1/22 , G01N1/26 , G01N1/28 , G08B17/10 , G01F1/74 , G01N29/024 , G01N15/00 , G01N15/14 , G08B17/113
CPC分类号： G01F1/74 , G01F1/66 , G01F1/667 , G01N1/2205 , G01N1/2273 , G01N1/26 , G01N29/024 , G01N2015/0046 , G01N2015/1486 , G01N2291/0217 , G01N2291/02408 , G01N2291/02836 , G08B17/10 , G08B17/113
摘要： A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.
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公开(公告)号：US09702803B2
公开(公告)日：2017-07-11
申请号：US14687969
申请日：2015-04-16
发明人： Ron Knox , Kemal Ajay , Karl Boettger
CPC分类号： G01N15/06 , G01N21/53 , G01N2015/0693 , G08B17/125 , G08B29/18 , G08B29/185 , H04N5/32 , H04N7/18
摘要： A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyze (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).
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公开(公告)号：US20160139008A1
公开(公告)日：2016-05-19
申请号：US15004253
申请日：2016-01-22
IPC分类号： G01N1/22
CPC分类号： G01N1/2247 , F16L55/00 , G01N1/26 , G08B17/10 , G08B17/113 , G08B17/117
摘要： There is described a duct detector (1) and components (2, 3, 6) for duct detectors. In one form the duct detector (1) includes: a port unit (3) and detector unit (2). The port unit (3) is mountable to a duct in use so as to position one or more ports in the duct. The detector unit (2) includes a detection region. The port unit (3) and detector unit (2) are reconfigurable between a close coupled configuration and a separated configuration in which the units (2,3) are mountable with a variable separation between them and coupled by one or more elongate conduits (12A, 12B) to provide fluid communication between the units (2,3).
摘要翻译： 描述了用于管道检测器的管道检测器（1）和部件（2,3,6）。 在一种形式中，管道检测器（1）包括：端口单元（3）和检测器单元（2）。 端口单元（3）可安装在使用中的管道上，以将一个或多个端口定位在管道中。 检测器单元（2）包括检测区域。 端口单元（3）和检测器单元（2）可在紧耦合构型和分离构造之间重新配置，其中单元（2,3）可以在它们之间以可变的间隔安装并由一个或多个细长导管（12A ，12B）以在所述单元（2,3）之间提供流体连通。
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公开(公告)号：US20150213697A1
公开(公告)日：2015-07-30
申请号：US14405719
申请日：2013-06-07
发明人： Ron Knox , Matthew Naylor , Kemal Ajay , Rajiv Singh
CPC分类号： G08B17/10 , G06T7/40 , G06T2207/10016 , G06T2207/30232 , G08B17/113 , G08B17/125 , G08B29/183
摘要： The invention relates to a particle detector, systems, and methods for detecting the presence of particles in a volume of air, most particularly it relates to detection systems and methods that use multiple modes of detection to detect the presence of particles. Preferably the particles being detected are particles that indicate an actual or incipient fire, or pyrolysis, such as smoke.
摘要翻译： 本发明涉及用于检测一定体积空气中的颗粒的存在的颗粒检测器，系统和方法，特别涉及使用多种检测模式来检测颗粒存在的检测系统和方法。 优选地，被检测的颗粒是指示实际的或初期的火，或热解，例如烟雾的颗粒。
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公开(公告)号：US09007223B2
公开(公告)日：2015-04-14
申请号：US13936418
申请日：2013-07-08
发明人： Ron Knox , Karl Boettger , Kemal Ajay
IPC分类号： G08B17/10 , G01N21/49 , G01S17/02 , G01S17/87 , G08B17/107 , G08B17/12 , G08B29/24 , G08B25/10 , G08B17/103 , G01S7/487 , G08B29/04 , G01N21/53 , G01S17/95
CPC分类号： G01N21/49 , G01N15/1463 , G01N21/17 , G01N21/532 , G01N33/0031 , G01N2021/1765 , G01N2201/06113 , G01S7/4873 , G01S7/4876 , G01S17/026 , G01S17/87 , G01S17/95 , G08B17/103 , G08B17/107 , G08B17/117 , G08B17/125 , G08B25/10 , G08B29/043 , G08B29/185 , G08B29/24 , Y02A90/19
摘要： The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).
摘要翻译： 本发明提供了与图像捕获装置（14），例如一个或多个摄像机和/或光学元件结合使用一个或多个发射的辐射束（16），例如激光束， 检测位于开放空间（12）中的颗粒（30），例如烟雾颗粒。
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公开(公告)号：US10545041B2
公开(公告)日：2020-01-28
申请号：US14433201
申请日：2013-10-16
发明人： Kemal Ajay , Ron Knox , Brian Alexander , Karl Boettger , Rajiv Kumar Singh , Thor North , Stephen James Pattinson , Peter Massingberd-Mundy
摘要： A method of determining at least one point of entry of smoke into a smoke detection system, the system having a sampling pipe network including at least one sampling pipe and a plurality of sampling inlets through which an air sample can enter the at least one sampling pipe of the smoke detection system for analysis by a particle detector, said method including: determining a volume of sample air that has passed through at least part of the smoke detection system since a predetermined event or a value corresponding to said volume; and determining through which sampling inlet of the plurality of sampling inlets the smoke entered the smoke detection system based, at least in part, on the determined volume or value. Systems for implementing such a method and related methods are also described.
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公开(公告)号：US10161837B2
公开(公告)日：2018-12-25
申请号：US15029304
申请日：2014-10-16
发明人： Kemal Ajay , Ronald Knox , Brian Alexander , Kate Cooper , Rajiv Kumar Singh , Thor North , Stephen James Pattinson , Peter Massingbard-Mundy , Alasdair James Williamson
摘要： A method of particle detection in an aspirated particle detection system having a sampling pipe network and a particle detector. The method includes drawing sample air to the particle detector through the air sampling network; analyzing the sample air with the particle detector; entering an amplification phase, in the event that a concentration of particles in the sample air greater than a predetermined threshold is detected, to create a plurality of sample air packets in the sampling pipe, wherein each sample air packet corresponds to a sampling inlet and includes an amplified concentration of air drawn from the corresponding sampling inlet; transporting the sample air including the plurality of sample air packets through the sampling pipe to the particle detector; and determining through which sampling inlet any particles entered the particle detection system.
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公开(公告)号：US09989443B2
公开(公告)日：2018-06-05
申请号：US14402748
申请日：2013-05-21
发明人： Ron Knox
CPC分类号： G01N1/2247 , G01N1/26 , G01N33/0009 , G05D7/0676 , G08B17/10 , G08B17/113
摘要： A sampling point for use with an aspirating particle detection system. The sampling point includes: a body; a plurality of apertures in the body for drawing an air sample from an ambient environment; an outlet for delivering the sampled air, at a predetermined sample flow rate, from the body into a sampling pipe of the network of sampling pipes; and a means for maintaining the predetermined sample flow rate regardless of the presence or absence of ambient flow of air about the body. A particle detection system, and air sampling system are also described.
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公开(公告)号：US09448168B2
公开(公告)日：2016-09-20
申请号：US14738371
申请日：2015-06-12
发明人： Ronald Knox , Kate Cooper , Kemal Ajay
CPC分类号： G01N21/53 , F21K9/00 , G01N15/0205 , G01N15/10 , G01N15/1434 , G01N15/1459 , G01N21/538 , G01N2201/061 , G01N2201/062 , G01N2201/0621 , G01N2201/0627 , G01N2201/0633 , G01N2201/0696
摘要： A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.
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公开(公告)号：US20160116389A1
公开(公告)日：2016-04-28
申请号：US14895450
申请日：2014-06-03
发明人： Kate Cooper , Ronald Knox
IPC分类号： G01N15/02
CPC分类号： G01N15/0205 , G01N15/0227 , G01N15/0266 , G01N15/1404 , G01N15/1436 , G01N15/1463 , G01N2015/0046 , G01N2015/0238 , G01N2035/00881 , G08B17/10 , G08B17/113
摘要： A particle detector, e.g. a smoke detector is described. In one form the detector includes a detection chamber and radiation source emitting a single beam of radiation. The detector also includes a radiation receiving system and an imaging system arranged to receive radiation from a common region of interest. Methods and systems for analysing the output of a particle detector are also disclosed.
摘要翻译： 粒子检测器，例如 描述了烟雾探测器。 在一种形式中，检测器包括检测室和发射单个辐射束的辐射源。 检测器还包括辐射接收系统和被配置为接收来自公共感兴趣区域的辐射的成像系统。 还公开了用于分析粒子检测器的输出的方法和系统。
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