公开(公告)号：US07784358B2

公开(公告)日：2010-08-31

申请号：US11719146

申请日：2005-11-14

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 particle detector system, includes a plurality of carriers in fluid communication with a particle detector, a flow rate detector in at least one of the carriers that senses a signal transmitted between a first and a second signal transceiver, wherein the first transceiver transceives signals in at least two of the carriers.

Abstract translation: 一种用于确定抽吸颗粒检测器系统中的流量的方法和装置，包括与颗粒检测器流体连通的多个载体，至少一个载体中的流速检测器，其感测在第一和第二信号之间传输的信号 收发器，其中第一收发器收发至少两个载波中的信号。

公开(公告)号：US20070084286A1

公开(公告)日：2007-04-19

申请号：US10556482

申请日：2004-05-14

Applicant: Kemal Ajay ,  Arjun Caprihan ,  Michael Rezny

Inventor： Kemal Ajay ,  Arjun Caprihan ,  Michael Rezny

IPC: G01H5/00

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: The present invention relates to the field of sensing apparatus (10) in detecting particles in air sampled from a number of locations. In one aspect the present invention provides for the determination of the time of flight of a signal transmitted between a transmitter (42, 44) and a receiver (44, 42), comprising: transmitting a first signal comprising at least one characteristic waveform feature; transmitting a second signal comprising at least one characteristic waveform feature and 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 corresponding characteristic waveform features of the first and second received signals comprising super positioning said first and second received signals such that said point of diversion corresponds to an arrival time of the introduced waveform feature modification at the receiver. In a preferred embodiment, 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: 本发明涉及检测从多个位置取样的空气中的颗粒的感测装置（10）的领域。 在一个方面，本发明提供确定在发射机（42,44）和接收机（44,42）之间传输的信号的飞行时间，包括：发送包括至少一个特征波形特征的第一信号; 发送包括在所述第二信号的持续时间的预定时间点引入的至少一个特征波形特征和波形修改的第二信号; 接收所述第一和第二传输信号; 确定第一和第二接收信号的相应特征波形特征之间的转移点，包括超定位所述第一和第二接收信号，使得所述转向点对应于在接收机处引入的波形特征修改的到达时间。 在优选实施例中，本发明提供了适于烟雾探测器系统（10）的流量传感器（24）中超声信号的精确时间确定时间。

公开(公告)号：US09395345B2

公开(公告)日：2016-07-19

申请号：US13582846

申请日：2011-03-03

Applicant: Rajiv Kumar Singh ,  Kemal Ajay

Inventor： Rajiv Kumar Singh ,  Kemal Ajay

IPC: G01N1/22 ,  G01N33/00 ,  G08B17/10

CPC classification number: G01N33/0027 ,  G01N1/2202 ,  G01N2001/2223 ,  G08B17/10 ,  G08B17/113

Abstract: A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.

Abstract translation: 用于检测空气容积中的颗粒的感测系统和方法包括主空气路径，其包括来自空气体积的入口。 还包括主要通风道内的收集站点。 收集地点用于从主气流路径抽取空气样本。 此外，该系统还包括一种方法，用于相对于沿着主气流路径的其余部分的空气速度引起收集位置处的粒子速度的局部增加。 引起局部增加的手段包括从主气流路径的辅助气流路径。 辅助气流路径在收集位置的上游具有出口。 在本发明的替代形式中，诱导收集部位的颗粒速度的局部增加的方法包括在主气流路径中的文氏管，其中收集位置沿文丘里管布置。

公开(公告)号：US20130199270A1

公开(公告)日：2013-08-08

申请号：US13582846

申请日：2011-03-03

Applicant: Rajiv Kumar Singh ,  Kemal Ajay

Inventor： Rajiv Kumar Singh ,  Kemal Ajay

IPC: G01N33/00

CPC classification number: G01N33/0027 ,  G01N1/2202 ,  G01N2001/2223 ,  G08B17/10 ,  G08B17/113

Abstract: A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.

Abstract translation: 用于检测空气容积中的颗粒的感测系统和方法包括主空气路径，其包括来自空气体积的入口。 还包括主要通风道内的收集站点。 收集地点用于从主气流路径抽取空气样本。 此外，该系统还包括一种方法，用于相对于沿着主气流路径的其余部分的空气速度引起收集位置处的粒子速度的局部增加。 引起局部增加的手段包括从主气流路径的辅助气流路径。 辅助气流路径在收集位置的上游具有出口。 在本发明的替代形式中，诱导收集部位的颗粒速度的局部增加的方法包括在主气流路径中的文氏管，其中收集位置沿文丘里管布置。

公开(公告)号：US20120140231A1

公开(公告)日：2012-06-07

申请号：US13318309

申请日：2010-05-03

Applicant: Ron Knox ,  Kari Boettger ,  Kemal Ajay

Inventor： Ron Knox ,  Kari Boettger ,  Kemal Ajay

IPC: G01N21/59 ,  F21V9/00 ,  G21K5/00

CPC classification number: 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

Abstract: A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a 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 (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Abstract translation: 一种包括光源（32），接收器（34）和目标（36）的光束检测器（10），用于协调以检测被监视区域（38）中的颗粒。 目标（36）反射入射光（40），导致反射光（32）返回到接收器（34）。 接收器（34）是能够在其视场上的多个点处记录和报告光强度的接收器。 在优选形式中，检测器（10）发射第一波长带中的第一光束（3614） 在第二波长带中的第二光束（3618）; 以及第三波长带中的第三光束（3616），其中所述第一和第二波长带基本相等并且与所述第三波长带不同。

公开(公告)号：US20110221889A1

公开(公告)日：2011-09-15

申请号：US12997155

申请日：2009-06-10

Applicant: Ron Knox ,  Karl Boettger ,  Kemal Ajay

Inventor： Ron Knox ,  Karl Boettger ,  Kemal Ajay

IPC: G01N21/00 ,  H04N7/18

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 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 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，适于照亮被监测至少两个波长的体积; 接收器），其具有视场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，并适于产生指示在视场内的区域中接收的光的强度的信号 收件人; 与所述接收机相关联的处理器，其适于处理由所述接收机产生的信号，以将在接收机的视场内的相应区域中接收到的至少两个波长的光相关联，并产生指示在两个波长处接收的光的相对电平的输出 。

公开(公告)号：US20100319465A1

公开(公告)日：2010-12-23

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: The present invention relates to the field of pollution monitoring equipment and in particular to aspirated particle detector systems, which detect particles in air sampled from a number of locations. The present invention provides a method and apparatus for determining flow in an aspirated particle detector system, said system comprising a plurality of carriers in fluid communication with a particle detector, comprising means for detecting the flow rate in at least one of the carriers comprising sensing a signal transmitted between a first and a second signal transceiver (44a-d, 42) wherein the first transceiver (42) is adapted to transceive signals in at least two of the carriers. In a preferred embodiment, the invention relates to the use of an ultrasonic means of flow sensing within an aspirated smoke detector system.

Abstract translation: 污染监测设备领域本发明涉及污染监测设备领域，特别是涉及从多个位置采样的空气中检测颗粒的抽吸颗粒检测器系统。 本发明提供了一种用于确定抽吸颗粒检测器系统中的流量的方法和装置，所述系统包括与颗粒检测器流体连通的多个载体，包括用于检测至少一个载体中的流速的装置，包括感测 在第一和第二信号收发器（44a-d，42）之间传输的信号，其中第一收发器（42）适于在至少两个载波中收发信号。 在优选实施例中，本发明涉及在吸气式烟雾探测器系统内使用超声波流量检测装置。