公开(公告)号：EP2909588A4

公开(公告)日：2016-07-20

申请号：EP13848049

申请日：2013-10-16

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： AJAY KEMAL ,  KNOX RON ,  ALEXANDER BRIAN ,  BOETTGER KARL ,  SINGH RAJIV KUMAR ,  NORTH THOR ,  PATTINSON STEPHEN JAMES ,  MASSINGBERD-MUNDY PETER

IPC: G01F1/66 ,  G01N1/00 ,  G01N1/26 ,  G01N35/08 ,  G08B17/00

CPC classification number: G01F1/66 ,  G01N1/24 ,  G01N15/06 ,  G01N15/1434 ,  G01N2001/245 ,  G01N2015/0046 ,  G08B17/10 ,  G08B17/113

公开(公告)号：EP2135057A4

公开(公告)日：2010-03-24

申请号：EP08714363

申请日：2008-03-07

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： AJAY KEMAL

IPC: G08B17/00 ,  G01N15/06 ,  G08B23/00 ,  G08B29/04 ,  G08B29/18 ,  G08B29/24

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

公开(公告)号：EP2286204A4

公开(公告)日：2013-01-16

申请号：EP09761163

申请日：2009-06-10

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： KNOX RON ,  AJAY KEMAL ,  BOETTGER KARL

IPC: G01N21/53 ,  G08B17/107

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 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 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.

公开(公告)号：EP2859540A4

公开(公告)日：2016-01-06

申请号：EP13800532

申请日：2013-06-07

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： KNOX RON ,  NAYLOR MATTHEW ,  AJAY KEMAL ,  SINGH RAJIV

IPC: G08B17/10 ,  G08B17/12 ,  G08B29/18

CPC classification number: G08B17/10 ,  G06T7/40 ,  G06T2207/10016 ,  G06T2207/30232 ,  G08B17/113 ,  G08B17/125 ,  G08B29/183

公开(公告)号：EP2425411A4

公开(公告)日：2014-01-22

申请号：EP10769161

申请日：2010-05-03

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： KNOX RON ,  BOETTGER KARL ,  AJAY KEMAL

IPC: G01N21/53 ,  G08B17/107

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.

公开(公告)号：EP2542347A4

公开(公告)日：2016-05-11

申请号：EP11750087

申请日：2011-03-03

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： AJAY KEMAL ,  ALEXANDER BRIAN

IPC: B03C3/00 ,  B01D53/32 ,  B03C3/08 ,  B03C3/36 ,  G08B17/10

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：EP2542874A4

公开(公告)日：2016-04-13

申请号：EP11750088

申请日：2011-03-03

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： SINGH RAJIV KUMAR ,  AJAY KEMAL

IPC: G01N1/22 ,  G01N1/24 ,  G08B17/00

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.

公开(公告)号：EP2217911A4

公开(公告)日：2011-12-07

申请号：EP08849716

申请日：2008-11-14

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： KNOX RON ,  AJAY KEMAL ,  COOPER KATE

IPC: G01N21/53 ,  G08B17/107

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

Abstract: There are described systems for improving the sensitivity, usability, and robustness of particle detection systems (100) adapted to detect particles directly in a volume (110) being monitored, the system (100) including 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 a least part of a beam (106) from an illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume on the basis of radiation captured in the images.