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    FILTER BYPASS
    1.
    发明申请
    FILTER BYPASS 有权
    过滤旁路

    公开(公告)号：US20130061659A1

    公开(公告)日：2013-03-14

    申请号：US13582832

    申请日：2011-03-04

    Applicant: Kemal Ajay ,  Nitin Vaveda

    Inventor： Kemal Ajay ,  Nitin Vaveda

    IPC: B01D46/00 ,  G01N15/00

    CPC classification number: G01N15/06 ,  G01N1/2205 ,  G01N2015/0693 ,  G08B17/10 ,  G08B17/113

    Abstract: There is described a filter arrangement for a particle detector for detecting particles in an environment. The particle detector can include one or more sensors for analyzing fluid in a detection region to produce sensor output. The filter arrangement includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path, which includes a filter, and a second flow path bypassing the filter. There is also provided a mechanism for controlling relative flow rates of fluid through the first flow path and the second flow path and a controller configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.

    Abstract translation: 描述了用于检测环境中的颗粒的颗粒检测器的过滤装置。 粒子检测器可以包括一个或多个用于分析检测区域中的流体以产生传感器输出的传感器。 过滤器装置包括限定流路的结构，用于将流体从环境传送到检测区域，包括包括过滤器的第一流动路径和绕过过滤器的第二流动路径。 还提供了一种用于控制通过第一流动路径和第二流动路径的流体的相对流速的机构，以及控制器，被配置为接收对应于至少两个相对流速的传感器输出并将逻辑应用于其以产生指示 过滤器的条件。

    Flow metering device for an aspirated smoke detector
    2.
    发明授权
    Flow metering device for an aspirated smoke detector 有权
    吸气式烟雾探测器的流量计量装置

    公开(公告)号：US08065922B2

    公开(公告)日：2011-11-29

    申请号：US12871076

    申请日：2010-08-30

    Applicant: Kemal Ajay ,  Arjun Vinoo Caprihan ,  Ron Knox

    Inventor： Kemal Ajay ,  Arjun Vinoo Caprihan ,  Ron Knox

    IPC: G01F1/66

    CPC classification number: G01F1/662 ,  B33Y80/00 ,  G01F1/667 ,  G08B17/10 ,  G08B17/113

    Abstract: A method and apparatus for determining flow in an aspirated smoke detector system includes a plurality of sampling pipes in fluid communication with a smoke detector, a flow rate detector in at least one of the sampling pipes that senses a signal transmitted between a first and second signal transceiver, wherein the first transceiver transceives signals in at least two of the sampling pipes.

    Abstract translation: 用于确定吸气式烟雾探测器系统中的流量的方法和装置包括与烟雾探测器流体连通的多个采样管，至少一个采样管中的流量检测器，其感测在第一和第二信号之间传输的信号 收发器，其中第一收发器在至少两个采样管中收发信号。

    Filter bypass
    4.
    发明授权
    Filter bypass 有权

    公开(公告)号：US09702802B2

    公开(公告)日：2017-07-11

    申请号：US13582832

    申请日：2011-03-04

    Applicant: Kemal Ajay ,  Nitin Vayeda

    Inventor： Kemal Ajay ,  Nitin Vayeda

    IPC: G01N15/06 ,  G01N1/22 ,  G08B17/10 ,  G08B17/113

    CPC classification number: G01N15/06 ,  G01N1/2205 ,  G01N2015/0693 ,  G08B17/10 ,  G08B17/113

    Abstract: There is described a filter arrangement for a particle detector for detecting particles in an environment. The particle detector can include one or more sensors for analyzing fluid in a detection region to produce sensor output. The filter arrangement includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path, which includes a filter, and a second flow path bypassing the filter. There is also provided a mechanism for controlling relative flow rates of fluid through the first flow path and the second flow path and a controller configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.

    Particle detection
    5.
    发明授权
    Particle detection 有权
    粒子检测

    公开(公告)号：US09025144B2

    公开(公告)日：2015-05-05

    申请号：US12743171

    申请日：2008-11-14

    Applicant: Ron Knox ,  Kemal Ajay ,  Karl Boettger

    Inventor： Ron Knox ,  Kemal Ajay ,  Karl Boettger

    IPC: G01N21/00 ,  G08B17/12 ,  G01N15/06

    CPC classification number: G01N15/06 ,  G01N21/53 ,  G01N2015/0693 ,  G08B17/125 ,  G08B29/18 ,  G08B29/185 ,  H04N5/32 ,  H04N7/18

    Abstract: 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).

    Abstract translation: 诸如有源视频烟雾探测系统的粒子检测系统（100）包括至少一个照射装置（102），用于将辐射束（106）引导通过待监测的空气体积（110）的至少一部分， 图像传感器（104）被定位成从照明装置（102）捕获至少一部分光束（106）的图像; 以及用于分析（107）所捕获的图像以检测所述体积内的颗粒的存在的装置。 描述了至少29个不同的方面来提高粒子检测的灵敏度，可用性和鲁棒性。 这些包括例如配置照明装置（102）以产生跨过空气容积（110）的光幕或快速扫描的光束，并且配置反射器以引导或改变从照明装置（102）反射的光束的方向 ）。

    PARTICLE DETECTION
    8.
    发明申请
    PARTICLE DETECTION 有权
    颗粒检测

    公开(公告)号：US20110058167A1

    公开(公告)日：2011-03-10

    申请号：US12743171

    申请日：2008-11-14

    Applicant: Ron Knox ,  Kemal Ajay ,  Karl Boettger

    Inventor： Ron Knox ,  Kemal Ajay ,  Karl Boettger

    IPC: G01N21/00

    CPC classification number: G01N15/06 ,  G01N21/53 ,  G01N2015/0693 ,  G08B17/125 ,  G08B29/18 ,  G08B29/185 ,  H04N5/32 ,  H04N7/18

    Abstract: 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 analyse (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).

    Abstract translation: 诸如有源视频烟雾探测系统的粒子检测系统（100）包括至少一个照射装置（102），用于将辐射束（106）引导通过待监测的空气体积（110）的至少一部分， 图像传感器（104）被定位成从照明装置（102）捕获至少一部分光束（106）的图像; 以及用于分析（107）所捕获的图像以检测所述体积内的颗粒的存在的装置。 描述了至少29个不同的方面来提高粒子检测的灵敏度，可用性和鲁棒性。 这些包括例如配置照明装置（102）以产生跨过空气容积（110）的光幕或快速扫描的光束，并且配置反射器以引导或改变从照明装置（102）反射的光束的方向 ）。

    Particle detector with dust rejection
    9.
    发明授权
    Particle detector with dust rejection 有权

    公开(公告)号：US09805570B2

    公开(公告)日：2017-10-31

    申请号：US14127984

    申请日：2012-06-21

    Applicant: Brian Alexander ,  Kemal Ajay

    Inventor： Brian Alexander ,  Kemal Ajay

    IPC: G08B17/10 ,  G08B29/24

    CPC classification number: G08B17/10 ,  G08B29/24

    Abstract: A system and method of reducing the incidence of false alarms attributable to dust in smoke detection apparatus. The method includes obtaining at least two sample air flows, subjecting a first airflow to particle reduction and measuring the level of particles in the first airflow and generating a first signal indicative of the intensity. The method also includes measuring the level of particles in the second airflow and generating a second signal indicative of the intensity. The first signal is compared to a predetermined alarm level and, if the alarm level is achieved, the first and second signals are subsequently compared and an output signal is generated based on the relative difference between the first and second signals.

    Sensing apparatus and method
    10.
    发明授权
    Sensing apparatus and method 有权
    检测装置及方法

    公开(公告)号：US08224621B2

    公开(公告)日：2012-07-17

    申请号：US10556482

    申请日：2004-05-14

    Applicant: Kemal Ajay ,  Arjun Vinoo Caprihan ,  Michael Rezny

    Inventor： Kemal Ajay ,  Arjun Vinoo Caprihan ,  Michael Rezny

    IPC: G06F3/02 ,  G06F3/03 ,  G01G3/15 ,  H04B13/02

    CPC classification number: 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

    Abstract: A method for the determination of the time of flight of a signal transmitted between a transmitter (42, 44) and a receiver (44, 42). In one form, the method involves transmitting a first signal and a second signal having a waveform modification introduced at a predetermined point in time of the duration of the second signal; receiving said first and second transmitted signals; determining a point of diversion between the first and second received signals to determine an arrival time of the introduced waveform feature modification at the receiver. In addition, the invention provides an accurate time of flight determination of ultrasonic signals in a flow sensor (24) adapted for a smoke detector system (10).

    Abstract translation: 一种用于确定在发射机（42,44）和接收机（44,42）之间传输的信号的飞行时间的方法。 在一种形式中，该方法涉及在第二信号的持续时间的预定时间点发送具有引入的波形修改的第一信号和第二信号; 接收所述第一和第二传输信号; 确定第一和第二接收信号之间的转向点，以确定引入的波形特征修改在接收机处的到达时间。 此外，本发明提供了适用于烟雾探测器系统（10）的流量传感器（24）中的超声波信号的精确飞行时间确定。

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