EP1022700A3 - Light scattering fire detector - Google Patents

Light scattering fire detector Download PDF

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Publication number
EP1022700A3
EP1022700A3 EP00100651A EP00100651A EP1022700A3 EP 1022700 A3 EP1022700 A3 EP 1022700A3 EP 00100651 A EP00100651 A EP 00100651A EP 00100651 A EP00100651 A EP 00100651A EP 1022700 A3 EP1022700 A3 EP 1022700A3
Authority
EP
European Patent Office
Prior art keywords
scattered light
fire detector
light signals
light scattering
alarm value
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP00100651A
Other languages
German (de)
French (fr)
Other versions
EP1022700A2 (en
EP1022700B1 (en
Inventor
Heiner Politz
Martin Bemba
Tido Krippendorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novar GmbH
Original Assignee
Caradon Esser GmbH
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
Application filed by Caradon Esser GmbH filed Critical Caradon Esser GmbH
Priority to SI200030392T priority Critical patent/SI1022700T1/en
Publication of EP1022700A2 publication Critical patent/EP1022700A2/en
Publication of EP1022700A3 publication Critical patent/EP1022700A3/en
Application granted granted Critical
Publication of EP1022700B1 publication Critical patent/EP1022700B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire Alarms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Communication System (AREA)

Abstract

Ein Branderkennungsverfahren beruht auf der Auswertung der Streulichtsignale, die ein mit einem Streulichtsystem ausgestatteter Brandmelder unter zwei Streuwinkeln mißt. Ein Mikroprozessor in dem Brandmelder gewinnt aus den Streulichtsignalen durch Vergleich mit einer Alarmschwelle einen Alarmwert. Zur Erkennung der häufigsten Rauchtypen und insbesondere zur Auswertung von Mischbränden mit geringem Fehlalarmrisiko wird der Alarmwert in Abhängigkeit von dem Verhältnis der Streulichtsignale bestimmt.

Figure 00000001
A fire detection method is based on the evaluation of the scattered light signals, which a fire detector equipped with a scattered light system measures under two scattering angles. A microprocessor in the fire detector obtains an alarm value from the scattered light signals by comparison with an alarm threshold. To identify the most common types of smoke and in particular to evaluate mixed fires with a low risk of false alarms, the alarm value is determined as a function of the ratio of the scattered light signals.
Figure 00000001
EP00100651A 1999-01-21 2000-01-13 Light scattering fire detector Expired - Lifetime EP1022700B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030392T SI1022700T1 (en) 1999-01-21 2000-01-13 Light scattering fire detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19902319 1999-01-21
DE19902319A DE19902319B4 (en) 1999-01-21 1999-01-21 Scattered light fire detectors

Publications (3)

Publication Number Publication Date
EP1022700A2 EP1022700A2 (en) 2000-07-26
EP1022700A3 true EP1022700A3 (en) 2001-04-11
EP1022700B1 EP1022700B1 (en) 2004-03-03

Family

ID=7894975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100651A Expired - Lifetime EP1022700B1 (en) 1999-01-21 2000-01-13 Light scattering fire detector

Country Status (9)

Country Link
US (1) US6218950B1 (en)
EP (1) EP1022700B1 (en)
AT (1) ATE261163T1 (en)
DE (2) DE19902319B4 (en)
DK (1) DK1022700T3 (en)
ES (1) ES2215499T3 (en)
HK (1) HK1028289A1 (en)
PT (1) PT1022700E (en)
SI (1) SI1022700T1 (en)

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US7505604B2 (en) * 2002-05-20 2009-03-17 Simmonds Precision Prodcuts, Inc. Method for detection and recognition of fog presence within an aircraft compartment using video images
DE10246756B4 (en) * 2002-10-07 2006-03-16 Novar Gmbh Fire detection procedure and fire detector for its implementation
US7746239B2 (en) * 2003-11-17 2010-06-29 Hochiki Corporation Light scattering type smoke detector
DE102004001699A1 (en) * 2004-01-13 2005-08-04 Robert Bosch Gmbh fire alarm
EP1619640A1 (en) * 2004-07-23 2006-01-25 Siemens Schweiz AG Scattered-light smoke detector
EP1630759B1 (en) * 2004-08-31 2007-11-07 Siemens Schweiz AG Scattered-light smoke detector
EP1630758B1 (en) * 2004-08-31 2008-01-02 Siemens Schweiz AG Scattered light smoke detector
EP1783713B1 (en) * 2005-11-04 2008-05-28 Siemens Aktiengesellschaft Tamper-proofing for a fire detector
DE102007013295A1 (en) 2007-03-16 2008-09-18 Aoa Apparatebau Gauting Gmbh smoke detector
EP2472250A4 (en) * 2009-09-15 2015-04-29 Hochiki Co Smoke sensor
US8289178B2 (en) * 2010-01-18 2012-10-16 Volution Electro/optical smoke analyzer
US8624745B2 (en) 2011-03-16 2014-01-07 Honeywell International Inc. High sensitivity and high false alarm immunity optical smoke detector
US8988660B2 (en) * 2011-06-29 2015-03-24 Silicon Laboratories Inc. Optical detector
DE102011108390B4 (en) 2011-07-22 2019-07-11 PPP "KB Pribor" Ltd. Method of making an open type smoke detector
DE102011108389A1 (en) 2011-07-22 2013-01-24 PPP "KB Pribor" Ltd. smoke detector
DE102011083939B4 (en) * 2011-09-30 2014-12-04 Siemens Aktiengesellschaft Evaluating scattered light signals in an optical hazard detector and outputting both a weighted smoke density signal and a weighted dust / vapor density signal
DE102011119431C5 (en) 2011-11-25 2018-07-19 Apparatebau Gauting Gmbh Stray radiation fire detector and method for automatically detecting a fire situation
EP2706515B1 (en) 2012-09-07 2014-11-12 Amrona AG Device and method for detecting dispersed light signals
EP3096130B1 (en) 2014-10-13 2021-05-26 Universität Duisburg-Essen Device for identification of aerosols
DE102015009938B4 (en) 2015-07-30 2022-02-03 Diehl Aviation Gilching Gmbh Heated smoke detector
CA3032865A1 (en) 2016-08-04 2018-02-08 Carrier Corporation Smoke detector
EP3287999A1 (en) 2016-08-25 2018-02-28 Siemens Schweiz AG Method for the detection of fire based on the stray light principle with staggered connection of a further led unit for beaming additional light impulses of different wavelengths and stray light angle and such stray light smoke detectors
EP3319057B1 (en) 2016-11-02 2019-06-26 ams AG Integrated smoke detection device
US20180136122A1 (en) * 2016-11-11 2018-05-17 Kidde Technologies, Inc. High sensitivity fiber optic based detection
CN107016816B (en) * 2017-05-12 2020-08-14 浙江恒洲电子实业有限公司 Labyrinth structure of smoke detector and smoke detection method thereof
JP6878197B2 (en) * 2017-08-04 2021-05-26 能美防災株式会社 Smoke detectors
CN111199628A (en) * 2018-11-20 2020-05-26 海湾安全技术有限公司 Smoke detector
US10697880B1 (en) * 2019-04-07 2020-06-30 Everday Technology Co., Ltd. Smoke detecting device
CN110136390A (en) * 2019-05-28 2019-08-16 赛特威尔电子股份有限公司 A kind of smog detection method, device, smoke alarm and storage medium
US11615683B2 (en) * 2020-04-01 2023-03-28 Carrier Corporation Surface mount back scatter photo-electric smoke detector
US20220276163A1 (en) * 2021-03-01 2022-09-01 Potter Electric Signal Company, Llc Forward and back scattering smoke detector and method of use
CN114758469B (en) * 2022-06-13 2022-09-02 深圳市派安科技有限公司 Fire smoke detection alarm capable of resisting ambient light interference
US20240046767A1 (en) * 2022-08-08 2024-02-08 Carrier Corporation Single-wave multi-angle smoke alarm algorithm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031096A1 (en) * 1979-12-20 1981-07-01 Heimann GmbH Optical arrangement for a smoke detector using the light scattering principle
EP0076338A1 (en) * 1981-10-05 1983-04-13 Gamewell Corporation Broad-spectrum particle detector
GB2230853A (en) * 1989-03-23 1990-10-31 Nittan Co Ltd Photoelectric smoke sensor
EP0530723A1 (en) * 1991-09-06 1993-03-10 Cerberus Ag Optical smoke detector with active monitoring
GB2277589A (en) * 1993-04-30 1994-11-02 Hochiki Co Light-scattering smoke detector for fire alarm system

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JPS59501879A (en) * 1982-10-11 1984-11-08 ツエルベルス・アクチエンゲゼルシヤフト Scattered light smoke detector
JPS6013449U (en) * 1983-03-31 1985-01-29 ホーチキ株式会社 Structure of smoke detection part of scattered light smoke detector
JPS62215848A (en) * 1986-03-18 1987-09-22 Hochiki Corp Sensing apparatus
NL9001415A (en) * 1990-06-21 1992-01-16 Ajax De Boer B V OPTICAL SMOKE, AEROSOL AND DUST DETECTOR AND FIRE RELEASE DEVICE WITH OPTICAL DETECTOR.
GB2259763B (en) * 1991-09-20 1995-05-31 Hochiki Co Fire alarm system
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JP2648560B2 (en) * 1993-04-09 1997-09-03 ホーチキ株式会社 Scattered light smoke detector
CH686913A5 (en) * 1993-11-22 1996-07-31 Cerberus Ag Arrangement for early detection of fires.
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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0031096A1 (en) * 1979-12-20 1981-07-01 Heimann GmbH Optical arrangement for a smoke detector using the light scattering principle
EP0076338A1 (en) * 1981-10-05 1983-04-13 Gamewell Corporation Broad-spectrum particle detector
GB2230853A (en) * 1989-03-23 1990-10-31 Nittan Co Ltd Photoelectric smoke sensor
EP0530723A1 (en) * 1991-09-06 1993-03-10 Cerberus Ag Optical smoke detector with active monitoring
GB2277589A (en) * 1993-04-30 1994-11-02 Hochiki Co Light-scattering smoke detector for fire alarm system

Also Published As

Publication number Publication date
HK1028289A1 (en) 2001-02-09
ES2215499T3 (en) 2004-10-16
EP1022700A2 (en) 2000-07-26
ATE261163T1 (en) 2004-03-15
DK1022700T3 (en) 2004-04-05
EP1022700B1 (en) 2004-03-03
DE19902319B4 (en) 2011-06-30
DE50005467D1 (en) 2004-04-08
SI1022700T1 (en) 2004-08-31
US6218950B1 (en) 2001-04-17
PT1022700E (en) 2004-06-30
DE19902319A1 (en) 2000-07-27

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