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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：US20160223437A1
公开(公告)日：2016-08-04
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
CPC分类号： G01N1/26 , G01M3/2815 , G01N15/06 , G08B17/10 , G08B17/113
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.
摘要翻译： 在具有采样管网和粒子检测器的吸气颗粒检测系统中的颗粒检测方法。 该方法包括通过空气采样网将样品空气抽至颗粒检测器; 用粒子检测器分析样品空气; 在检测到样品空气中的颗粒浓度大于预定阈值的情况下进入放大阶段，以在取样管中产生多个样品空气分组，其中每个样品空气分组对应于采样入口，并且包括 从相应的取样口抽出的空气的放大浓度; 将包括多个样品空气包的样品空气通过采样管输送到颗粒检测器; 并确定通过哪个采样进口任何颗粒进入颗粒检测系统。
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公开(公告)号：US20160377541A1
公开(公告)日：2016-12-29
申请号：US15246990
申请日：2016-08-25
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：US20170184496A1
公开(公告)日：2017-06-29
申请号：US15456246
申请日：2017-03-10
发明人： Ronald Knox , Kate Cooper , Kemal Ajay
CPC分类号： G01N21/53 , G01N15/0205 , G01N15/0227 , G01N15/1434 , G01N21/49 , G01N21/538 , G01N2201/0621 , G01N2201/0696 , G08B17/107 , G08B17/113
摘要： A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.
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公开(公告)号：US09645081B2
公开(公告)日：2017-05-09
申请号：US14954141
申请日：2015-11-30
发明人： Ron Knox , Kate Cooper , Kemal Ajay
IPC分类号： G01N21/00 , G01N21/53 , G08B17/107 , G01N15/02 , G01N21/49 , G08B17/113
CPC分类号： G01N21/53 , G01N15/0205 , G01N15/0227 , G01N15/1434 , G01N21/49 , G01N21/538 , G01N2201/0621 , G01N2201/0696 , G08B17/107 , G08B17/113
摘要： A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.
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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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公开(公告)号：US09291555B2
公开(公告)日：2016-03-22
申请号：US14636840
申请日：2015-03-03
发明人： Ron Knox , Kate Cooper , Peter Meikle , Brian Alexander
IPC分类号： G06K9/00 , G01N21/53 , G01S7/48 , G01S7/481 , G01S7/497 , G01S17/89 , G08B17/103 , G08B17/107 , G08B17/12 , G06K9/46 , G01N21/84 , G01N21/85
CPC分类号： G01N21/53 , G01N15/1434 , G01N21/84 , G01N21/85 , G01N2201/06113 , G01N2201/12 , G01S7/4802 , G01S7/4811 , G01S7/497 , G01S17/89 , G06K9/46 , G08B17/10 , G08B17/103 , G08B17/107 , G08B17/125
摘要： A smoke detecting method which uses a beam of radiation such as a laser (16), to monitor a region, such as a room (12). A camera (14) is used to capture images of part of the room (12), including a path of the laser beam. Particles in the laser beam scatter light (30), and this is captured by the camera (14) for analysis. A processor (20) extracts data relating to the scattered light (30) to determine the density of particles in the beam, to determine the level of smoke in the region. The laser may have a modulated output (38) so that images captured without the laser tuned “on” can be used as a reference point and compared to images taken with the laser turned “on”, to assist in determining the level of scattered light (30) compared to ambient light. Filters (24, 26) may be used to decrease signals generated from background light.
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公开(公告)号：US10345213B2
公开(公告)日：2019-07-09
申请号：US14895450
申请日：2014-06-03
发明人： Kate Cooper , Ronald Knox
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 analyzing the output of a particle detector are also disclosed.
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公开(公告)号：US09423344B2
公开(公告)日：2016-08-23
申请号：US15015787
申请日：2016-02-04
发明人： Ron Knox , Kate Cooper , Peter Meikle , Brian Alexander
CPC分类号： G01N21/53 , G01N15/1434 , G01N21/84 , G01N21/85 , G01N2201/06113 , G01N2201/12 , G01S7/4802 , G01S7/4811 , G01S7/497 , G01S17/89 , G06K9/46 , G08B17/10 , G08B17/103 , G08B17/107 , G08B17/125
摘要： A smoke detecting method which uses a beam of radiation such as a laser (16), to monitor a region, such as a room (12). A camera (14) is used to capture images of part of the room (12), including a path of the laser beam. Particles in the laser beam scatter light (30), and this is captured by the camera (14) for analysis. A processor (20) extracts data relating to the scattered light (30) to determine the density of particles in the beam, to determine the level of smoke in the region. The laser may have a modulated output (38) so that images captured without the laser tuned “on” can be used as a reference point and compared to images taken with the laser turned “on”, to assist in determining the level of scattered light (30) compared to ambient light. Filters (24, 26) may be used to decrease signals generated from background light.
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