IN2014DN00091A - - Google Patents

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Publication number
IN2014DN00091A
IN2014DN00091A IN91DEN2014A IN2014DN00091A IN 2014DN00091 A IN2014DN00091 A IN 2014DN00091A IN 91DEN2014 A IN91DEN2014 A IN 91DEN2014A IN 2014DN00091 A IN2014DN00091 A IN 2014DN00091A
Authority
IN
India
Prior art keywords
airflow
level
particles
intensity
signals
Prior art date
Application number
Inventor
Kemal Ajay
Brian Alexander
Original Assignee
Xtralis Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2011902443A external-priority patent/AU2011902443A0/en
Application filed by Xtralis Technologies Ltd filed Critical Xtralis Technologies Ltd
Publication of IN2014DN00091A publication Critical patent/IN2014DN00091A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements
    • G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

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.
IN91DEN2014 2011-06-22 2012-06-21 IN2014DN00091A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2011902443A AU2011902443A0 (en) 2011-06-22 Particle detector with dust rejection
PCT/AU2012/000711 WO2012174593A1 (en) 2011-06-22 2012-06-21 Particle detector with dust rejection

Publications (1)

Publication Number Publication Date
IN2014DN00091A true IN2014DN00091A (en) 2015-05-15

Family

ID=47421907

Family Applications (1)

Application Number Title Priority Date Filing Date
IN91DEN2014 IN2014DN00091A (en) 2011-06-22 2012-06-21

Country Status (11)

Country Link
US (1) US9805570B2 (en)
EP (1) EP2724328B1 (en)
JP (1) JP6006791B2 (en)
KR (1) KR101969868B1 (en)
CN (1) CN103608853B (en)
AU (2) AU2012272552A1 (en)
CA (1) CA2836811A1 (en)
HK (1) HK1194850A1 (en)
IN (1) IN2014DN00091A (en)
TW (1) TWI587248B (en)
WO (1) WO2012174593A1 (en)

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US7855821B2 (en) 2004-11-15 2010-12-21 Gentex Corporation Electrochromic compounds and associated media and devices
EP2378350B1 (en) 2006-03-09 2013-12-11 Gentex Corporation Vehicle rearview assembly including a high intensity display
CN103366495B (en) * 2013-07-11 2015-08-05 合肥工业大学 A kind of air suction type high sensitivity smoke particle detector and application thereof
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RU2655225C1 (en) * 2015-04-17 2018-05-24 Конинклейке Филипс Н.В. Dust treating
CN107531183B (en) 2015-04-20 2021-09-03 金泰克斯公司 Rearview assembly with applique
US9994156B2 (en) 2015-10-30 2018-06-12 Gentex Corporation Rearview device
CN108290523A (en) 2015-11-02 2018-07-17 金泰克斯公司 And there is the display mirror assembly of radiator
US10303031B2 (en) 2015-11-18 2019-05-28 Gentex Corporation Electro-optic gas barrier
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US10684471B2 (en) 2016-04-27 2020-06-16 Gentex Corporation Vehicle display comprising focal distance correction feature
WO2017192551A1 (en) 2016-05-03 2017-11-09 Gentex Corporation Polarized electro-optic element
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CN109661611B (en) 2016-10-10 2021-12-21 金泰克斯公司 Polarizing window assembly
CN110942583B (en) * 2018-09-21 2021-11-19 中国移动通信有限公司研究院 Method, device and terminal for reporting smoke alarm
US20200310211A1 (en) 2019-03-29 2020-10-01 Gentex Corporation Electro-optic sub-assemblies and assemblies having an electrochromic gel layer and methods of making
WO2021163235A1 (en) 2020-02-11 2021-08-19 Gentex Corporation Rearview device

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Also Published As

Publication number Publication date
CA2836811A1 (en) 2012-12-27
US9805570B2 (en) 2017-10-31
CN103608853B (en) 2016-06-08
EP2724328A4 (en) 2015-07-08
KR20140040757A (en) 2014-04-03
KR101969868B1 (en) 2019-04-17
CN103608853A (en) 2014-02-26
JP2014520330A (en) 2014-08-21
HK1194850A1 (en) 2014-10-24
AU2016200388A1 (en) 2016-02-11
US20140197956A1 (en) 2014-07-17
JP6006791B2 (en) 2016-10-12
EP2724328A1 (en) 2014-04-30
WO2012174593A1 (en) 2012-12-27
AU2016200388B2 (en) 2018-01-04
AU2012272552A1 (en) 2013-12-12
TWI587248B (en) 2017-06-11
TW201316292A (en) 2013-04-16
EP2724328B1 (en) 2022-09-28

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