-
公开(公告)号:US20150160175A1
公开(公告)日:2015-06-11
申请号:US14620534
申请日:2015-02-12
Applicant: Xtralis Technologies Ltd.
Inventor: Ron KNOX , Karl BOETTGER , Kemal AJAY
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:US20150128722A1
公开(公告)日:2015-05-14
申请号:US14516727
申请日:2014-10-17
Applicant: Xtralis Technologies Ltd.
Inventor: Kemal AJAY , Arjun Vinoo CAPRIHAN , Michael REZNY
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 of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.
Abstract translation: 一种检测吸气式烟雾探测器系统的管道中的一个或多个阻塞采样孔的方法。 该方法包括使用流量传感器确定通过粒子检测器的流体的基本流量; 监测通过粒子检测器的后续流量; 将后续流量与基本流量进行比较; 并且如果基本流量与后续流量之间的差异超过预定阈值则指示故障。
-
公开(公告)号:US20150241330A1
公开(公告)日:2015-08-27
申请号:US14687969
申请日:2015-04-16
Applicant: Xtralis Technologies Ltd.
Inventor: Ron KNOX , Kemal AJAY , Karl BOETTGER
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 )。
-
-