EP1039426A3 - Smoke sensing device - Google Patents

Smoke sensing device Download PDF

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Publication number
EP1039426A3
EP1039426A3 EP00105832A EP00105832A EP1039426A3 EP 1039426 A3 EP1039426 A3 EP 1039426A3 EP 00105832 A EP00105832 A EP 00105832A EP 00105832 A EP00105832 A EP 00105832A EP 1039426 A3 EP1039426 A3 EP 1039426A3
Authority
EP
European Patent Office
Prior art keywords
sensing device
smoke sensing
smoke
reflected
radiation
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.)
Withdrawn
Application number
EP00105832A
Other languages
German (de)
French (fr)
Other versions
EP1039426A2 (en
Inventor
Gottfried Müller
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.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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 DE19912911A external-priority patent/DE19912911C2/en
Priority claimed from DE19951403A external-priority patent/DE19951403B4/en
Application filed by Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of EP1039426A2 publication Critical patent/EP1039426A2/en
Publication of EP1039426A3 publication Critical patent/EP1039426A3/en
Withdrawn legal-status Critical Current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
    • 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

Abstract

Bei einer Vorrichtung zur Erkennung von Rauch beispielsweise in einem Raum, soll ein Sender (2) zum Aussenden einer von dem Rauch (1) reflektierbaren Strahlung und ein die vom Rauch reflektierte Strahlung erkennender Empfänger (3) vorgesehen sein.

Figure 00000001
In a device for detecting smoke, for example in a room, a transmitter (2) for emitting radiation that can be reflected by the smoke (1) and a receiver (3) that detects the radiation reflected by the smoke should be provided.
Figure 00000001
EP00105832A 1999-03-22 2000-03-20 Smoke sensing device Withdrawn EP1039426A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19912911A DE19912911C2 (en) 1999-03-22 1999-03-22 Device for detecting smoke
DE19912911 1999-03-22
DE19951403A DE19951403B4 (en) 1999-10-26 1999-10-26 Method for detecting smoke
DE19951403 1999-10-26

Publications (2)

Publication Number Publication Date
EP1039426A2 EP1039426A2 (en) 2000-09-27
EP1039426A3 true EP1039426A3 (en) 2001-01-31

Family

ID=26052522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105832A Withdrawn EP1039426A3 (en) 1999-03-22 2000-03-20 Smoke sensing device

Country Status (1)

Country Link
EP (1) EP1039426A3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046992C1 (en) * 2000-09-22 2002-06-06 Bosch Gmbh Robert Scattered light smoke
WO2005124710A1 (en) * 2004-06-21 2005-12-29 Burke Anthony John Smoke detecctor
ATE515008T1 (en) 2008-02-19 2011-07-15 Siemens Ag SMOKE DETECTOR WITH TIME EVALUATION OF A BACKSCATTER SIGNAL, TEST METHOD FOR THE FUNCTIONALITY OF A SMOKE DETECTOR
EP2093732A1 (en) 2008-02-19 2009-08-26 Siemens Aktiengesellschaft Device and method for detecting smoke through joint evaluation of two optical backscattering signals
ATE507544T1 (en) 2008-02-19 2011-05-15 Siemens Ag SMOKE DETECTION USING TWO SPECTRALLY DIFFERENT SCATTERED LIGHT MEASUREMENTS
US8952821B2 (en) * 2012-04-29 2015-02-10 Valor Fire Safety, Llc Smoke detector utilizing ambient-light sensor, external sampling volume, and internally reflected light
US9355542B2 (en) * 2014-01-27 2016-05-31 Kidde Technologies, Inc. Apparatuses, systems and methods for self-testing optical fire detectors
DE102015004458B4 (en) * 2014-06-26 2016-05-12 Elmos Semiconductor Aktiengesellschaft Apparatus and method for a classifying, smokeless air condition sensor for predicting a following operating condition
EP3029647B1 (en) 2014-12-04 2017-05-31 Siemens Schweiz AG Open scattered light smoke detector, particularly with a sidelooker LED
WO2017190770A1 (en) * 2016-05-03 2017-11-09 Autronica Fire & Security As Automatic cover detection system and method
DE102016208357A1 (en) 2016-05-13 2017-11-16 Siemens Schweiz Ag Fire detector, in particular open scattered light smoke detector, with a photodiode for detecting ambient light in order to accelerate depending on the optical signal path in the scattered light fire analysis
EP3455837B1 (en) 2016-05-13 2020-03-11 Siemens Schweiz AG Fire detector having a photodiode for sensing ambient light to accelerate the emission of a likely fire alarm on the basis thereof
WO2018226593A1 (en) * 2017-06-05 2018-12-13 Carrier Corporation Method of monitoring health of protective cover of detection device
US11493229B2 (en) 2019-03-20 2022-11-08 Carrier Corporation Chamberless wide area duct smoke detector
EP3899501B1 (en) 2020-02-05 2023-06-07 Durag GmbH Device for the scattered light measurement of particles in a gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH571750A5 (en) * 1974-09-10 1976-01-15 Nohmi Bosai Kogyo Co Ltd Photoelectricccc aerosol or smoke detector - second photo cell receives reflected light from prism surface to compensate for contamination
US4011458A (en) * 1975-10-09 1977-03-08 Pyrotector, Incorporated Photoelectric detector with light source intensity regulation
US4870394A (en) * 1988-01-29 1989-09-26 Systron-Donner Corp. Smoke detector with improved testing
EP0556898A1 (en) * 1992-02-17 1993-08-25 Aritech B.V. Intrusion alarm system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH571750A5 (en) * 1974-09-10 1976-01-15 Nohmi Bosai Kogyo Co Ltd Photoelectricccc aerosol or smoke detector - second photo cell receives reflected light from prism surface to compensate for contamination
US4011458A (en) * 1975-10-09 1977-03-08 Pyrotector, Incorporated Photoelectric detector with light source intensity regulation
US4870394A (en) * 1988-01-29 1989-09-26 Systron-Donner Corp. Smoke detector with improved testing
EP0556898A1 (en) * 1992-02-17 1993-08-25 Aritech B.V. Intrusion alarm system

Also Published As

Publication number Publication date
EP1039426A2 (en) 2000-09-27

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