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    FIRE DETECTION
    12.
    发明申请
    FIRE DETECTION 有权
    火灾检测

    公开(公告)号：US20150310717A1

    公开(公告)日：2015-10-29

    申请号：US14647752

    申请日：2013-11-26

    Applicant: XTRALIS TECHNOLOGIES LTD

    Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

    IPC: G08B17/10

    CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

    Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

    Abstract translation: 一种粒子检测系统，包括与至少两个样品入口流体连通的颗粒检测器，用于接收来自监测区域的样品流。 粒子检测器包括检测装置，用于检测样品流中的颗粒水平，并输出指示样品流中颗粒水平的第一信号。 流量传感器位于样品入口的下游，用于测量样品流的流速并输出指示样品流量的第二信号。 至少第一样品入口通常对被监测区域开放，用于接收至少部分样品流。 至少第二个样品入口通常关闭到监测区域，但是响应于监测区域中环境条件的变化，可以对监测区域打开。 粒子检测系统还包括适于接收第一和第二信号并将第一信号与预定阈值电平进行比较并将第二信号与预定阈值流率进行比较的处理装置，并且基于相应的比较结果生成输出信号 第一和第二信号。 还描述了颗粒检测方法。

    PARTICLE DETECTION
    13.
    发明申请
    PARTICLE DETECTION 有权
    颗粒检测

    公开(公告)号：US20140306113A1

    公开(公告)日：2014-10-16

    申请号：US14318033

    申请日：2014-06-27

    Applicant: Xtralis Technologies Ltd

    Inventor： Ron Knox ,  Karl Boettger ,  Kemal Ajay

    IPC: G01N21/49

    CPC classification number: G01N21/53 ,  G01N15/0205 ,  G01N15/0227 ,  G01N15/1434 ,  G01N21/49 ,  G01N21/538 ,  G01N2201/0621 ,  G01N2201/0696 ,  G08B17/107 ,  G08B17/113

    Abstract: 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.

    Abstract translation: 一种粒子检测系统，包括： 至少一个光源，其适于照亮在至少两个波长处被监测的体积; 具有视场的接收器，并且适于在所述光已经穿过被监视的体积之后接收来自至少一个光源的光，并且适于产生指示在所述视场内的区域中接收的光的强度的信号 接收器 与所述接收器相关联的处理器，其适于处理由所述接收器产生的信号，以将在所述接收机的视场内的相应区域中的至少两个波长处接收的光相关联，并且生成指示在所述两个接收器处接收的光的相对电平的输出 波长。

    FIRE DETECTION
    16.
    发明申请
    FIRE DETECTION 有权

    公开(公告)号：US20160314669A1

    公开(公告)日：2016-10-27

    申请号：US15201042

    申请日：2016-07-01

    Applicant: Xtralis Technologies Ltd

    Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

    IPC: G08B17/12 ,  G08B29/04 ,  G08B29/18

    CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

    Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

    GAS DETECTOR FOR USE WITH AN AIR SAMPLING PARTICLE DETECTION SYSTEM
    18.
    发明申请
    GAS DETECTOR FOR USE WITH AN AIR SAMPLING PARTICLE DETECTION SYSTEM 有权
    气体探测器用于空气采样颗粒检测系统

    公开(公告)号：US20160054215A1

    公开(公告)日：2016-02-25

    申请号：US14931339

    申请日：2015-11-03

    Applicant: Xtralis Technologies Ltd

    Inventor： Alasdair James Williamson

    IPC: G01N15/06

    CPC classification number: G01N15/0656 ,  F24F2110/66 ,  F24F2110/70 ,  F24F2110/72 ,  F24F2110/76 ,  G08B17/117 ,  G08B21/14 ,  G08B29/22 ,  Y02A50/243 ,  Y02A50/249 ,  Y02B30/78

    Abstract: An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus includes, a housing adapted to be in fluid communication with a duct of a particle detection system, and at least one gas detector sensitive to a target species arranged in fluid communication with the housing to detect the presence of the target species in at least part of the air sample flowing in a duct. In one form the gas detection apparatus forms part of a system for detecting a condition in an environment that includes, a particle detector; a duct system in fluid communication with the environment and the particle detector and an aspirator to draw an air sample flow from the environment to the particle detector.

    Abstract translation: 描述了用于检测气体存在的装置和方法。 气体检测装置包括：适于与颗粒检测系统的管道流体连通的壳体，以及至少一个气体检测器，其对被布置成与壳体流体连通的目标物种敏感，以检测目标物种的存在 空气样品的至少一部分在管道中流动。 在一种形式中，气体检测装置形成用于检测包括粒子检测器的环境中的状况的系统的一部分; 与环境和颗粒检测器流体连通的管道系统和抽吸器，以将空气样品流从环境抽吸到颗粒检测器。

    METHOD OF DETECTING PARTICLES BY DETECTING A VARIATION IN SCATTERED RADIATION
    19.
    发明申请
    METHOD OF DETECTING PARTICLES BY DETECTING A VARIATION IN SCATTERED RADIATION 有权
    通过检测散射辐射中的变化来检测颗粒的方法

    公开(公告)号：US20150177137A1

    公开(公告)日：2015-06-25

    申请号：US14636840

    申请日：2015-03-03

    Applicant: Xtralis Technologies Ltd.

    Inventor： Ron KNOX ,  Karl BOETTGER ,  Peter MEIKLE ,  Brian ALEXANDER

    IPC: G01N21/53 ,  G01S7/481 ,  G08B17/12 ,  G06K9/46 ,  G08B17/107 ,  G01N21/85 ,  G01S17/89

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 使用诸如激光（16）的辐射束的烟雾检测方法来监视诸如房间（12）的区域。 相机（14）用于捕获包括激光束的路径的房间（12）的一部分的图像。 激光束中的粒子散射光（30），并且由相机（14）捕获用于分析。 处理器（20）提取与散射光（30）相关的数据，以确定光束中的粒子的密度，以确定该区域中的烟雾水平。 激光器可以具有调制输出（38），使得在没有激光调谐为“开”的情况下拍摄的图像可以用作参考点，并且与激光器“打开”拍摄的图像进行比较，以帮助确定散射光的水平 （30）与环境光相比。 滤波器（24,26）可用于减少从背景光产生的信号。

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