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.

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。

公开(公告)号：US20100039645A1

公开(公告)日：2010-02-18

申请号：US12530509

申请日：2008-03-07

Applicant: Kemal Ajay

Inventor： Kemal Ajay

IPC: G01N21/00

CPC classification number: G08B17/107 ,  G01N15/06 ,  G01N2015/0693 ,  G08B17/113 ,  G08B29/043 ,  G08B29/24

Abstract: An apparatus for detecting particles in an airflow is disclosed. The apparatus can include at least one light source for illuminating a one or more portions of the airflow, at least one photo-detector positioned to detect light scattered from one or more illuminated volumes of the airflow. The at least one light source and at least one photo detector are arranged such that a signal indicative of light scattered from a plurality of illuminated volumes can be derived from the output of the at least one photo detector. The apparatus also includes a signal processing apparatus configured to process said signals indicative of light scattered from a plurality of illuminated volumes to determine whether particles have been detected in the airflow.

Abstract translation: 公开了一种用于检测气流中的颗粒的装置。 该装置可以包括用于照亮气流的一个或多个部分的至少一个光源，至少一个光检测器，定位成检测从一个或多个照明体积的气流散射的光。 所述至少一个光源和至少一个光电检测器被布置成使得能够从所述至少一个光电检测器的输出导出指示从多个照明体积散射的光的信号。 该装置还包括信号处理装置，其被配置为处理指示从多个照明体积散射的光的所述信号，以确定是否在气流中检测到颗粒。

公开(公告)号：US5816096A

公开(公告)日：1998-10-06

申请号：US809003

申请日：1997-05-05

Applicant: Kim Chew Ng ,  Kemal Ajay

Inventor： Kim Chew Ng ,  Kemal Ajay

IPC: G01B11/00 ,  G01B21/04 ,  G01B1/00

CPC classification number: G01B11/002 ,  G01B11/00 ,  G01B21/042

Abstract: A calibration frame for a non-contact measurement system includes a frame structure (12); a plurality of targets (14) which may be light emitting diodes supported by the frame structure for viewing by the measurement system; control means for activating each of the targets for allowing the targets to be identified by the measurement system; memory means for storing data relating to the position of each target; and a communication link such as an infrared link for transferring data from the calibration frame to the measurement system which relates to the position of that target.

Abstract translation: PCT No.PCT / AU95 / 00575 Sec。 371日期：1997年5月5日 102（e）日期1997年5月5日PCT提交1995年9月6日PCT公布。 公开号WO96 / 07869 日期1996年3月14日非接触测量系统的校准框架包括框架结构（12）; 多个目标（14），其可以是由框架结构支撑的发光二极管，用于由测量系统观看; 控制装置，用于激活每个目标，以允许由测量系统识别目标; 用于存储与每个目标的位置相关的数据的存储装置; 以及诸如红外链路的通信链路，用于将数据从校准帧传送到与该目标的位置有关的测量系统。

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。

公开(公告)号：US20080297360A1

公开(公告)日：2008-12-04

申请号：US11719226

申请日：2005-11-14

Applicant: Ron Knox ,  Karl Boettger ,  Kemal Ajay

Inventor： Ron Knox ,  Karl Boettger ,  Kemal Ajay

IPC: G08B17/10 ,  H04N7/18

CPC classification number: G01N21/49 ,  G01N15/1463 ,  G01N21/17 ,  G01N21/532 ,  G01N33/0031 ,  G01N2021/1765 ,  G01N2201/06113 ,  G01S7/4873 ,  G01S7/4876 ,  G01S17/026 ,  G01S17/87 ,  G01S17/95 ,  G08B17/103 ,  G08B17/107 ,  G08B17/117 ,  G08B17/125 ,  G08B25/10 ,  G08B29/043 ,  G08B29/185 ,  G08B29/24 ,  Y02A90/19

Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example smoke particles, located in an open space (12).

Abstract translation: 本发明提供了与图像捕获装置（14），例如一个或多个摄像机和/或光学元件结合使用一个或多个发射的辐射束（16），例如激光束， 检测位于开放空间（12）中的颗粒（30），例如烟雾颗粒。

公开(公告)号：US20080066527A1

公开(公告)日：2008-03-20

申请号：US11719146

申请日：2005-11-14

Applicant: Kemal AJAY

Inventor： Kemal AJAY

IPC: G01N11/00

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 systems 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，特别涉及检测从多个位置取样的空气中的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动的方法和装置，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（44 ad，42）之间传输的信号，其中所述第一收发器 （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。

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：US09128047B2

公开(公告)日：2015-09-08

申请号：US13062301

申请日：2009-09-04

Applicant: Brian Alexander ,  Nitin Vayeda ,  Kemal Ajay

Inventor： Brian Alexander ,  Nitin Vayeda ,  Kemal Ajay

IPC: G01N15/02 ,  G01N21/53 ,  G08B17/10 ,  G08B17/107 ,  G08B29/26 ,  G01N21/47

CPC classification number: G01N21/53 ,  G01F1/667 ,  G01N15/06 ,  G01N15/1434 ,  G01N2015/0693 ,  G01N2021/4733 ,  G01N2201/061 ,  G01N2201/062 ,  G08B17/10 ,  G08B17/107 ,  G08B17/113 ,  G08B29/26

Abstract: A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.

Abstract translation: 描述了一种在空气流中检测颗粒的方法。 该方法包括：接收指示从多个波长的空气流散射的光强度的信号，并且处理指示在每个波长处的接收光的强度的信号和相应的波长相关参数，以产生指示在 空气流中颗粒的最小特征。 还描述了粒子检测系统。