EP1783712A1 - Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée - Google Patents

Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée Download PDF

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Publication number
EP1783712A1
EP1783712A1 EP05110341A EP05110341A EP1783712A1 EP 1783712 A1 EP1783712 A1 EP 1783712A1 EP 05110341 A EP05110341 A EP 05110341A EP 05110341 A EP05110341 A EP 05110341A EP 1783712 A1 EP1783712 A1 EP 1783712A1
Authority
EP
European Patent Office
Prior art keywords
fire
light beams
sensor unit
characteristic
monitoring
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
EP05110341A
Other languages
German (de)
English (en)
Other versions
EP1783712B1 (fr
Inventor
Kurt Müller
Peter Steiner
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.)
Siemens AG
Original Assignee
Siemens Schweiz AG
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 to DE502005004043T priority Critical patent/DE502005004043D1/de
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to EP05110341A priority patent/EP1783712B1/fr
Priority to ES05110341T priority patent/ES2306025T3/es
Priority to AT05110341T priority patent/ATE394764T1/de
Priority to PCT/EP2006/068036 priority patent/WO2007051820A1/fr
Priority to CN2006800411178A priority patent/CN101300611B/zh
Priority to US12/089,789 priority patent/US7817049B2/en
Publication of EP1783712A1 publication Critical patent/EP1783712A1/fr
Application granted granted Critical
Publication of EP1783712B1 publication Critical patent/EP1783712B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Definitions

  • the invention relates to a method for detecting a fire with a comprehensive at least two sensor units a structurally limited space monitoring fire alarm, in which a first fire detection unit of the fire alarm a first fire characteristic is monitored by the scattered light method.
  • the scattered light method can also be used outside a darkened measuring chamber in the room to be monitored.
  • Most such disadvantages are trying to solve that the measurement or monitoring is limited to the immediate vicinity of the fire alarm.
  • a distance of 4 to 10 cm from the surface of the fire detector is generally considered typical.
  • the disadvantages can only be reduced to a limited extent.
  • Linear smoke detectors send a beam of light across the room to be monitored and trigger an alarm when the beam is attenuated by smoke (extinction). It is irrelevant whether transmitter and receiver are arranged in separate devices on opposite walls of the room or if they are combined in one unit. In one unit then a reflector on the opposite wall is necessary. Since the measuring distance is usually several meters, the sensitivity of linear detectors is generally greater than that of scattered light detectors. In addition, they can be positioned in high rooms at a height where smoke is expected. Of course, the influence or even a total interruption of the light beam in such arrangements is much more likely than is the case when the beam is effective only in the detector environment.
  • the object of the present invention is to provide a simple and efficient way to suggest the earliest possible detection of a fire.
  • a core of the invention is to be seen in that for the earliest possible detection of a fire, a fire detector with a first sensor unit for monitoring a first fire characteristic according to the scattered light method and a second sensor unit for monitoring a second fire characteristic according to the extinction method is used.
  • the first sensor unit consists of at least one light emitting transmitter unit and at least one receiving unit receiving the transmitted light.
  • the second sensor unit consists of at least two strongly bundled light emitting transmitting units and at least one receiving unit receiving the emitted light.
  • the signals of the two sensor units of the fire detector can be evaluated individually or in combination by a suitable evaluation unit such as a fuzzy processor.
  • the fire detector is generally mounted on the ceiling of the structurally limited space. The two sensor units can partially use the same components.
  • the at least two transmitting units emitting the highly concentrated light beams can be used jointly by both sensor units.
  • an IR laser diode, an IR diode, etc. can be used.
  • the receiving units can then forward the received signals to a dedicated evaluation unit of the fire alarm.
  • the highly collimated light beams emitted by the at least two transmitting units are directed from the ceiling towards the ground and may be inclined either parallel or slightly (outwardly). The angle of inclination is generally less than 10 degrees.
  • Smoke in the immediate vicinity of the fire detector is detected by the scattered light method and by the Extintechnischshabilit, further away from the ceiling smoke only by the Extintechnischshabilit because the scattered light is too weak.
  • the transmitting units are controlled shifted in time and therefore the light beams are transmitted temporally shifted.
  • a distance measurement provides information on whether a level change involves a partially reflecting object extending in the direction of the room height. It can then be assumed that between "normal" reflection location, location in the room where the monitoring of the second fire characteristic takes place according to the invention, and the fire detector in the room is an object interfering with the measurement. If this is the case, it can usually be concluded that it is impaired by living beings (persons, animals, etc.) or moving objects.
  • the distance measurement can, for example, with the help of in the EP 1391860 A1 revealed principle.
  • a major advantage of the method according to the invention is that a fire can be detected or detected much earlier. In this way, a fire alarm can be triggered earlier and thus risks for property damage and personal injury can be reduced to a minimum.
  • Another great advantage of this inventive fire alarm is that it can be integrated into the ceiling panel of a room and thus is flush with the ceiling.
  • Figure 1 shows a fire detector with two inventive sensor units 1, 2 and a cover plate AP.
  • cover plate AP which may consist of plastic, metal, wood, glass, etc.
  • windows or openings for the receiving units SLE and EE, as well as for the transmitting units SE are indicated.
  • This fire detector can be integrated into the ceiling of a room.
  • the cover AP of the fire detector can then be flush with the ceiling or slightly protruding.
  • the thick black lines indicate the respective measuring range.
  • the two sensor units 1, 2 are shown separated from each other, but according to the invention both sensor units 1, 2 should be integrated in a fire detector and at least the transmission units SE shared by the two sensor units 1, 2.
  • the first sensor unit 1 consists of two transmitting light emitting units SE and a scattered light receiving unit SLE.
  • the scattered light receiving unit SLE is aligned by means of two optics so that it detects only a near-detail cutout or measuring range of the beams.
  • the second sensor unit 2 consists of the same two transmission units SE and an extinction reception unit EE.
  • the extinction receiving unit EE detects smoke by the extinction method.
  • the extinction receiver EE with its optics forms an area at a greater distance from the ceiling, which covers all emitted light beams and lies outside the area monitored by the scattered light method.
  • the impact points of the transmission units SE on the floor or objects that are about 2 to 5 meters from the ceiling are depicted.
  • the reflection of the emitted light rays on the ground or at most on pieces of furniture such as tables, shelves, etc. is detected up to a ceiling height of for example 5 meters.
  • the reflected light is measured.
  • the emitted light rays penetrate each smoke layer at any height.
  • the received signals according to the scattered light method and the received signals according to the extinction method are combined (Neuro Fuzzy processor) that a very safe statement regarding the presence of a fire the one in connection with a rather uncertain statement of the other sensor system is enough to trigger a fire alarm.
  • a triggering of a fire alarm will generally occur much earlier than with point detectors that only operate according to the scattered light method.

Landscapes

  • 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)
EP05110341A 2005-11-04 2005-11-04 Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée Not-in-force EP1783712B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP05110341A EP1783712B1 (fr) 2005-11-04 2005-11-04 Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée
ES05110341T ES2306025T3 (es) 2005-11-04 2005-11-04 Avisador de incendios combinados de luz dispersa y de extincion.
AT05110341T ATE394764T1 (de) 2005-11-04 2005-11-04 Kombinierter streulicht- und extinktionsbrandmelder
DE502005004043T DE502005004043D1 (de) 2005-11-04 2005-11-04 Kombinierter Streulicht- und Extinktionsbrandmelder
PCT/EP2006/068036 WO2007051820A1 (fr) 2005-11-04 2006-11-02 Detecteur d'incendie combine de detection optique par diffusion et d'extinction
CN2006800411178A CN101300611B (zh) 2005-11-04 2006-11-02 组合的散射光和消光火警探测器
US12/089,789 US7817049B2 (en) 2005-11-04 2006-11-02 Combined scattered-light and extinction-based fire detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05110341A EP1783712B1 (fr) 2005-11-04 2005-11-04 Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée

Publications (2)

Publication Number Publication Date
EP1783712A1 true EP1783712A1 (fr) 2007-05-09
EP1783712B1 EP1783712B1 (fr) 2008-05-07

Family

ID=36297208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05110341A Not-in-force EP1783712B1 (fr) 2005-11-04 2005-11-04 Détecteur de feu optique fonctionnant par principe d'absorbance et diffusion combinée

Country Status (7)

Country Link
US (1) US7817049B2 (fr)
EP (1) EP1783712B1 (fr)
CN (1) CN101300611B (fr)
AT (1) ATE394764T1 (fr)
DE (1) DE502005004043D1 (fr)
ES (1) ES2306025T3 (fr)
WO (1) WO2007051820A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043451A2 (fr) 2006-10-09 2008-04-17 Schako Klima Luft Ferdinand Schad Kg Dispositif pour détecter de la fumée dans une pièce
EP2043069A1 (fr) 2007-09-28 2009-04-01 Siemens Building Technologies Fire & Security Products GmbH & Co. oHG Dispositif destiné à la surveillance d'une alerte d'incendie et procédé de configuration et alerte d'incendie
DE102015004458A1 (de) 2014-06-26 2015-12-31 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
EP2423895B1 (fr) 2010-08-26 2017-03-08 Siemens Schweiz AG Alarme incendie à lumière diffusée dotée de moyens de suppression d'une alerte acoustique en cas de faible tension d'alimentation
CN113327397A (zh) * 2021-05-20 2021-08-31 浙江华消科技有限公司 一种烟雾探测器迷宫结构及烟雾报警器

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001699A1 (de) * 2004-01-13 2005-08-04 Robert Bosch Gmbh Brandmelder
US9140646B2 (en) 2012-04-29 2015-09-22 Valor Fire Safety, Llc Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction
US8947243B2 (en) 2012-04-29 2015-02-03 Valor Fire Safety, Llc Smoke detector with external sampling volume and utilizing internally reflected light
US8907802B2 (en) 2012-04-29 2014-12-09 Valor Fire Safety, Llc Smoke detector with external sampling volume and ambient light rejection
CA2927785C (fr) 2013-10-30 2024-04-16 Valor Fire Safety, Llc Detecteur de fumee a volume d'echantillonnage exterieur et a rejet de lumiere ambiante
US9652958B2 (en) 2014-06-19 2017-05-16 Carrier Corporation Chamber-less smoke sensor
DE102019110336A1 (de) * 2019-04-18 2020-10-22 Jörg Flemming Rauchmelder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020080040A1 (en) * 2000-09-22 2002-06-27 Joachim Schneider Scattering light smoke alarm
US20020153499A1 (en) * 2001-04-19 2002-10-24 Ulrich Oppelt Scattered light smoke alarm
US20030020617A1 (en) * 2002-09-19 2003-01-30 Tice Lee D. Detector with ambient photon sensor and other sensors

Family Cites Families (10)

* Cited by examiner, † Cited by third party
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CH641584A5 (de) * 1979-02-26 1984-02-29 Cerberus Ag Brandmelder.
JPS61247918A (ja) * 1985-04-26 1986-11-05 Hochiki Corp アナログセンサの出力補正装置
JP2935549B2 (ja) * 1990-08-23 1999-08-16 能美防災株式会社 火災検出方法及び装置
CH683464A5 (de) * 1991-09-06 1994-03-15 Cerberus Ag Optischer Rauchmelder mit aktiver Ueberwachung.
US5502434A (en) * 1992-05-29 1996-03-26 Hockiki Kabushiki Kaisha Smoke sensor
CH684556A5 (de) * 1992-09-14 1994-10-14 Cerberus Ag Optischer Rauchmelder.
EP0886252B1 (fr) * 1997-06-16 2001-08-16 Siemens Building Technologies AG Dispositif de détection de fumée optique fonctionnent selon le principe d'extinction
US6111511A (en) * 1998-01-20 2000-08-29 Purdue Research Foundations Flame and smoke detector
EP1103937B1 (fr) * 1999-11-19 2005-05-11 Siemens Building Technologies AG Détecteur d'incendie
CN2779384Y (zh) * 2005-01-07 2006-05-10 上海捷耐瑞智能科技有限公司 激光光束感烟探测器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020080040A1 (en) * 2000-09-22 2002-06-27 Joachim Schneider Scattering light smoke alarm
US20020153499A1 (en) * 2001-04-19 2002-10-24 Ulrich Oppelt Scattered light smoke alarm
US20030020617A1 (en) * 2002-09-19 2003-01-30 Tice Lee D. Detector with ambient photon sensor and other sensors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043451A2 (fr) 2006-10-09 2008-04-17 Schako Klima Luft Ferdinand Schad Kg Dispositif pour détecter de la fumée dans une pièce
WO2008043451A3 (fr) * 2006-10-09 2008-05-29 Schako Klima Luft Dispositif pour détecter de la fumée dans une pièce
EP2043069A1 (fr) 2007-09-28 2009-04-01 Siemens Building Technologies Fire & Security Products GmbH & Co. oHG Dispositif destiné à la surveillance d'une alerte d'incendie et procédé de configuration et alerte d'incendie
EP2423895B1 (fr) 2010-08-26 2017-03-08 Siemens Schweiz AG Alarme incendie à lumière diffusée dotée de moyens de suppression d'une alerte acoustique en cas de faible tension d'alimentation
DE102015004458A1 (de) 2014-06-26 2015-12-31 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
CN113327397A (zh) * 2021-05-20 2021-08-31 浙江华消科技有限公司 一种烟雾探测器迷宫结构及烟雾报警器
CN113327397B (zh) * 2021-05-20 2022-03-01 浙江华消科技有限公司 一种烟雾探测器迷宫结构及烟雾报警器

Also Published As

Publication number Publication date
CN101300611A (zh) 2008-11-05
US7817049B2 (en) 2010-10-19
WO2007051820A1 (fr) 2007-05-10
ES2306025T3 (es) 2008-11-01
ATE394764T1 (de) 2008-05-15
US20080211681A1 (en) 2008-09-04
EP1783712B1 (fr) 2008-05-07
DE502005004043D1 (de) 2008-06-19
CN101300611B (zh) 2012-07-04

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