EP1159606A1 - Appareil de detection d'incendie - Google Patents

Appareil de detection d'incendie

Info

Publication number
EP1159606A1
EP1159606A1 EP00909453A EP00909453A EP1159606A1 EP 1159606 A1 EP1159606 A1 EP 1159606A1 EP 00909453 A EP00909453 A EP 00909453A EP 00909453 A EP00909453 A EP 00909453A EP 1159606 A1 EP1159606 A1 EP 1159606A1
Authority
EP
European Patent Office
Prior art keywords
array
saw
gases
fire
vapours
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Withdrawn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
EP00909453A
Other languages
German (de)
English (en)
Inventor
Mark Philip Byfield
Gulam Mohammed Ismail
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.)
Teledyne UK Ltd
Original Assignee
Marconi Applied 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 GBGB9905053.6A external-priority patent/GB9905053D0/en
Application filed by Marconi Applied Technologies Ltd filed Critical Marconi Applied Technologies Ltd
Publication of EP1159606A1 publication Critical patent/EP1159606A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4481—Neural networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/25—Fusion techniques
    • G06F18/254—Fusion techniques of classification results, e.g. of results related to same input data
    • G06F18/256—Fusion techniques of classification results, e.g. of results related to same input data of results relating to different input data, e.g. multimodal recognition
    • 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
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/002—Generating a prealarm to the central station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/021—Gases
    • G01N2291/0215—Mixtures of three or more gases, e.g. air
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/021—Gases
    • G01N2291/0217—Smoke, combustion gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0423—Surface waves, e.g. Rayleigh waves, Love waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0426—Bulk waves, e.g. quartz crystal microbalance, torsional waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/106—Number of transducers one or more transducer arrays

Definitions

  • This invention relates to fire detection apparatus and more particularly to
  • smoke detectors sense smoke generated during a fire from the burning
  • Heat detectors detect changes in temperature which occur during a fire.
  • the present invention seeks to provide an improved fire detection apparatus.
  • chemical sensor means including an array of SAW sensors responsive to gases and/or vapours produced when an incipient fire occurs in the environment in
  • a SAW sensor used in an array in the chemical sensor means includes a
  • the array of SAW sensors is
  • the SAW coatings may be selected
  • Non-polar vapours e.g. hexane, toluene, octane, etc.
  • BAW bulk acoustic wave or quartz micorbalance
  • SAWs are small devices and as multi-sensor array may be laid out on a single
  • SAW responses are due to comparable visco-elastic and mass based responses
  • vapours give a small mass change on the SAW or BAW device but can potentially
  • chemical sensor means is intended to detect an incipient fire in electrical circuitry and/or cabling, for example to be responsive to gases and/or vapours produced when a
  • means may be tailored so as to detect which of several possible electrical sources of a fire are involved. For example, it may be able to detect and discriminate between
  • remote monitoring means is included for communicating with the
  • SAW array This is particularly advantageous as it permits fire detection in
  • An antenna may be mounted on the SAW oscillator to transmit over short
  • the response from the SAW array may include an identifier
  • the array is contained within a
  • sampling means is included in a sampling
  • the sampling module may be simply a flexible tube and pump located to
  • the modular system permits optimisation of the fire
  • electrical apparatus will be housed in separate cabinets, each
  • a sampling module or modules may be
  • each cabinet included in each cabinet and arranged to acquire a sample from the cabinet and
  • the sensor module may be located outside the cabinet
  • a plurality of sensor modules may be
  • each having its own sampling module attached thereto each having its own sampling module attached thereto.
  • a single sensor module may be included in or near a cabinet and
  • Samples may be acquired continuously, as discrete samples or as batched samples, for example.
  • the modular approach may also be implemented by having a processor module which is arranged to accept inputs from one or more sensor modules.
  • processor module may be located in a physically remote region from the sensor
  • module provides a powerful tool to a user. It enables a large physical area to be
  • PCBs are included in a cabinet, it may be possible to distinguish which one or ones of these are likely to be the source of the problem. Different PCBs may have
  • array of SAW sensors may be tailored so as to distinguish between these.
  • An added benefit of the present invention is that it enables earlier detection of
  • Algorithms may be used for analysing the
  • the fire detection apparatus may include a display module for presentation of
  • a control signal may be provided to initiate shutdown of a region at which a fire has been detected. This is particularly applicable
  • FIG. 1 schematically shows fire detection apparatus in accordance with the
  • FIGS. 2 and 3 are an explanatory diagrams relating to the operation of the
  • FIG. 4 schematically illustrates another apparatus in accordance with the
  • a fire detection apparatus is set up to monitor electrical
  • circuitry which is not enclosed within a housing.
  • the circuitry comprises
  • Each sensor module comprises an array of SAW sensors, each array
  • sensor module an uncoated SAW sensor as a reference, a temperature sensor and a
  • the sensor module 5 associated with housing 1 is connected to a sampling
  • module 10 which comprises a tube extending into the interior of the housing 1 and a pump which continuously circulates samples of air within the housing 1 over the
  • the sensor modules 6 is included within the second housing 2.
  • room temperatures means that they can be operated substantially continuously to give
  • sensor modules 5 to 9 are applied to a processor module 13 which applies statistical
  • fuzzy logic or a neural network may be implemented.
  • the status of the system is displayed at 14 for an
  • control circuit 15 which interfaces with the various electrical systems contained
  • control system 15 acts to shut down any region where an incipient fire is detected and
  • Each array of SAW sensors comprises different coatings which may for
  • Figure 2 illustrates the normalised response of an
  • Figure 3 shows the response of the SAW sensors to vapours emitted from an
  • FIG. 4 schematically shows a system having three SAW arrays 16, 17, 18
  • each include an antenna for communication via a wireless link with a remote processor 19.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Data Mining & Analysis (AREA)
  • Business, Economics & Management (AREA)
  • Artificial Intelligence (AREA)
  • Emergency Management (AREA)
  • Acoustics & Sound (AREA)
  • Theoretical Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Evolutionary Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Signal Processing (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne un appareil de détection d'incendie comportant un réseau de capteurs d'onde acoustique de surface (SAW) qui réagissent à des gaz et/ou des vapeurs produits lorsqu'un feu naissant survient, et permettent une détection précoce d'incendie. L'appareil s'applique en particulier à la détection d'une surchauffe de circuits de cartes à circuit imprimé, par exemple.
EP00909453A 1999-03-05 2000-03-06 Appareil de detection d'incendie Withdrawn EP1159606A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9905053.6A GB9905053D0 (en) 1999-03-05 1999-03-05 Chemical sensor systems
GB9905053 1999-03-05
GB9916925 1999-07-20
GBGB9916925.2A GB9916925D0 (en) 1999-03-05 1999-07-20 Fire detection apparatus
PCT/GB2000/000770 WO2000054042A1 (fr) 1999-03-05 2000-03-06 Appareil de detection d'incendie

Publications (1)

Publication Number Publication Date
EP1159606A1 true EP1159606A1 (fr) 2001-12-05

Family

ID=26315222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00909453A Withdrawn EP1159606A1 (fr) 1999-03-05 2000-03-06 Appareil de detection d'incendie

Country Status (5)

Country Link
EP (1) EP1159606A1 (fr)
JP (1) JP2002539511A (fr)
AU (1) AU3173500A (fr)
GB (1) GB2347502A (fr)
WO (1) WO2000054042A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2586856C1 (ru) * 2015-01-12 2016-06-10 Учреждение науки "Инженерно-конструкторский центр сопровождения эксплуатации космической техники" (Учреждение науки ИКЦ СЭКТ) Способ раннего обнаружения пожара и устройство для его реализации

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7205701B2 (en) 2004-09-03 2007-04-17 Honeywell International Inc. Passive wireless acoustic wave chemical sensor
EP1669960A1 (fr) * 2004-12-08 2006-06-14 Siemens Schweiz AG Avertisseur avec une antenne de télécommunication
US7872379B2 (en) 2008-12-12 2011-01-18 Honeywell International Inc. Integrated electric power distribution center fire protection system
FR3048302B1 (fr) * 2016-02-25 2020-12-25 Keas Dispositif et procede de detection d'une anomalie dans un circuit electrique

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001511A1 (fr) * 1981-10-13 1983-04-28 Univ Maine Detecteur de gaz a oscillateur a onde acoustique de surface
US4895017A (en) * 1989-01-23 1990-01-23 The Boeing Company Apparatus and method for early detection and identification of dilute chemical vapors
GB8927567D0 (en) * 1989-12-06 1990-02-07 Gen Electric Co Plc Detection of chemicals
US5065140A (en) * 1991-03-08 1991-11-12 Bell Communications Research, Inc. Early warning reactive gas detection system
US5469369A (en) * 1992-11-02 1995-11-21 The United States Of America As Represented By The Secretary Of The Navy Smart sensor system and method using a surface acoustic wave vapor sensor array and pattern recognition for selective trace organic vapor detection
US5465608A (en) * 1993-06-30 1995-11-14 Orbital Sciences Corporation Saw vapor sensor apparatus and multicomponent signal processing
FR2710153B1 (fr) * 1993-09-17 1995-12-01 Alpha Mos Sa Procédés et appareils de détection des substances odorantes et applications.
US5325704A (en) * 1993-11-22 1994-07-05 The United States Of America As Represented By The Secretary Of The Army Surface acoustic wave (SAW) chemical multi-sensor array
DE4417170C1 (de) * 1994-05-17 1995-10-05 Karlsruhe Forschzent Gassensor bestehend aus Oberflächenwellen-Bauelementen
US5756631A (en) * 1994-05-27 1998-05-26 The United States Of America As Represented By The Secretary Of The Navy Siloxanes with strong hydrogen bond donating functionalities
DE29804805U1 (de) * 1998-03-17 1998-07-16 Bürkert Werke GmbH & Co., 74653 Ingelfingen Gassensorgerät
EP0982588A1 (fr) * 1998-08-25 2000-03-01 Siemens Building Technologies AG Détecteur d'incendie avec détecteur de fumée et méthode de fabrication d'un détecteur à empreintes moléculaires pour la détection de fumée

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0054042A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2586856C1 (ru) * 2015-01-12 2016-06-10 Учреждение науки "Инженерно-конструкторский центр сопровождения эксплуатации космической техники" (Учреждение науки ИКЦ СЭКТ) Способ раннего обнаружения пожара и устройство для его реализации

Also Published As

Publication number Publication date
JP2002539511A (ja) 2002-11-19
AU3173500A (en) 2000-09-28
WO2000054042A1 (fr) 2000-09-14
GB0005269D0 (en) 2000-04-26
GB2347502A (en) 2000-09-06

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