公开(公告)号：US09993828B2

公开(公告)日：2018-06-12

申请号：US13582839

申请日：2011-03-03

Applicant: Kemal Ajay ,  Brian Alexander

Inventor： Kemal Ajay ,  Brian Alexander

IPC: B03C3/34 ,  G08B17/113 ,  G01N15/06 ,  G08B17/10 ,  B03C3/08 ,  B03C3/36 ,  B01D53/32

CPC classification number: B03C3/34 ,  B01D53/323 ,  B03C3/08 ,  B03C3/366 ,  B03C2201/24 ,  G01N15/06 ,  G08B17/10 ,  G08B17/113

Abstract: A particle separation system for separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is disclosed. The particle separation system includes an airflow path for directing the airflow from an inlet to an outlet. The airflow path includes a first airflow path section in a first direction and a second airflow path section in a second direction, the first and second directions being different relative to each other. The airflow path also includes at least one electrically charged surface such that the airflow undergoes electrostatic precipitation as it traverses the airflow path. A method of separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is also disclosed.

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：US20140197956A1

公开(公告)日：2014-07-17

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.

Abstract translation: 一种降低烟雾检测装置中灰尘的误报的发生率的系统和方法。 该方法包括获得至少两个样品空气流，对第一气流进行颗粒减小并测量第一气流中的颗粒水平并产生指示强度的第一信号。 该方法还包括测量第二气流中的颗粒水平并产生指示强度的第二信号。 将第一信号与预定的报警电平进行比较，如果实现了报警电平，则随后比较第一和第二信号，并且基于第一和第二信号之间的相对差产生输出信号。

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。