EP0718814B1 - Procédé et dispositif de détection de flamme - Google Patents

Procédé et dispositif de détection de flamme Download PDF

Info

Publication number
EP0718814B1
EP0718814B1 EP94120083A EP94120083A EP0718814B1 EP 0718814 B1 EP0718814 B1 EP 0718814B1 EP 94120083 A EP94120083 A EP 94120083A EP 94120083 A EP94120083 A EP 94120083A EP 0718814 B1 EP0718814 B1 EP 0718814B1
Authority
EP
European Patent Office
Prior art keywords
frequency
periodic
flame
signals
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.)
Expired - Lifetime
Application number
EP94120083A
Other languages
German (de)
English (en)
Other versions
EP0718814A1 (fr
Inventor
Dr. Marc Pierre Thuillard
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 Building Technologies 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8216544&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0718814(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Priority to DE59409799T priority Critical patent/DE59409799D1/de
Priority to EP94120083A priority patent/EP0718814B1/fr
Priority to AT94120083T priority patent/ATE203118T1/de
Priority to AU37810/95A priority patent/AU703685B2/en
Priority to CZ19953218A priority patent/CZ289921B6/cs
Priority to CN95120895A priority patent/CN1099660C/zh
Priority to US08/574,773 priority patent/US5594421A/en
Publication of EP0718814A1 publication Critical patent/EP0718814A1/fr
Publication of EP0718814B1 publication Critical patent/EP0718814B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • G08B29/183—Single detectors using dual technologies
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/02—Mechanical actuation of the alarm, e.g. by the breaking of a wire

Definitions

  • the present invention relates to a method for detecting a flame Analysis of the change in intensity of the radiation emitted by a radiation source, an evaluation of the flicker frequency spectrum of the radiation takes place and outside signals lying in a specific frequency band are evaluated as interference signals become.
  • Methods of this type use the typical flickering of the flames in one low frequency vibration range as a feature to distinguish between the radiation and interference radiation emitted by a flame.
  • the definition of the frequency band in the simplest case it is carried out by the sensor for the emitted radiation upstream filter or frequency-selective amplifier connected downstream, in both cases a certain pass band of, for example, 5 to 25 Hz is obtained. Even if the frequency band is optimally matched to the flickering of flames malfunctions and false reports are relatively common because it happens again and again that random changes in intensity of the ambient radiation in the pass band lie. Such changes in intensity can be caused, for example, by shadowing or reflections from vibrating or slowly moving objects Reflections of sunlight on water surfaces or from flickering or fluctuating Light sources may be caused.
  • the invention is now intended to specify a method of the type specified at the outset be what a clear and secure identification and thus elimination of interference radiation and thus has a high false alarm security, and which is also as universal as possible.
  • This object is achieved according to the invention in that when evaluating the Flicker frequency spectrum determines the center and cut-off frequency and according to periodic and non-periodic signals is distinguished, and that periodic signals with a center frequency above a first and non-periodic signals with a Cut-off frequency above a second frequency value are evaluated as interference signals, the first frequency value being determined by the flickering frequency of a stationary flame a size corresponding to the minimum size to be detected is determined and the second frequency value greater than the first is selected.
  • each flame can have two states, namely a steady state, which is usually then exists when the flame burns stable and undisturbed (so-called periodic Flame), and a quasi-steady state in which the flame burns unstably (so-called non-periodic flame), and that on the other hand a periodic flame Frequency spectrum with a pronounced frequency peak and a non-periodic Flame has a broadband spectrum with a maximum or limit frequency.
  • the invention further relates to a flame detector with means for carrying out the mentioned method, with at least one sensor for the from the radiation source emitted radiation, and with a downstream of the at least one sensor Evaluation electronics.
  • the flame detector according to the invention is characterized in that that the evaluation electronics means for analyzing the received radiation and their center and cut-off frequency and to link the radiation received corresponding sensor signals with these frequencies.
  • a preferred embodiment of the flame detector according to the invention is thereby characterized in that the said means formed by a microprocessor and that this microprocessor contains a fuzzy controller.
  • the fully drawn spectrum with the pronounced peak has a center frequency ⁇ mp and an upper limit frequency ⁇ gp , where: ⁇ gp ⁇ ⁇ mp
  • a spectrum of this type is typical of an undisturbed and stable burning, so-called periodic flame, the center frequency ⁇ mp with a flame diameter of 10 cm being below 5 Hz and slowly decreasing with increasing diameter.
  • the broadband spectrum indicated by a dashed envelope also has a center frequency and a cutoff frequency, which are denoted by ⁇ mc and ⁇ gc .
  • Such a broadband spectrum is typical of a flame in an unstable or non-steady state; Such a flame is referred to below as non-periodic.
  • the cutoff frequency ⁇ gc of the broadband spectrum is higher than the center frequency ⁇ mp of the periodic flame. So the following applies: ⁇ gc > ⁇ mp
  • the occurrence of the cut-off frequency ⁇ gc in a non-periodic flame can be explained as follows: If a flame burns undisturbed and is in the steady state, then the convection cells forming this flame are also stationary in number and size, and the flame has a constant flickering frequency ⁇ 1 , where ⁇ 1 ⁇ ⁇ mp ⁇ ⁇ gp . If, however, the flame is exposed to external influences such as wind, the convection cells can divide or they can form aggregates of several cells, both processes being subject to a limit.
  • K denotes a factor, g the gravitational pull and D the size of the flame, expressed by the diameter of the bowl-shaped container in which a liquid burns with a flame of the relevant size.
  • Formula 5 gives a value of 4.7 Hz for a shell diameter of 0.1 m for ⁇ o . If you measure the flicker frequency, you get lower values.
  • the minimum diameter of the fire or fire to be detected is first determined. If this is to be 10 cm, for example, then the frequency ⁇ mp ⁇ ⁇ gp of a periodic flame is below 5 Hz and the cut-off frequency ⁇ gc of the same size non-periodic flame will certainly not be above 15 Hz. Then two limit values G 1 and G 2 are set for periodic and non-periodic interference signals; the limit value G 1 for periodic interference signals preferably according to Formula 2 with G 1 > ⁇ mp , i.e. at about 5 Hz, and the limit value G 2 for non-periodic interference signals according to Formula 3 with G 2 > 3 ⁇ mp, for example at about 15 Hz.
  • the signal generated by the sensor of the detector is examined for its periodicity and assigned to one of the two classes periodically or non-periodically and compared with the relevant limit value G 1 or G 2 and evaluated as an interference signal when the limit value is exceeded.
  • the signal is examined for periodicity or non-periodicity, for example, by forming the difference between the cutoff frequency minus the center frequency and dividing this difference by the cutoff frequency. If the quotient is in the order of one, then it is a non-periodic signal; if it is well below one, then it is a periodic signal.
  • fuzzy logic This type of signal evaluation would largely suppress potential Interference signals and thus a high level of false alarm security are guaranteed. You can do that False alarm security and reliability further improve if you evaluate the signal using fuzzy logic.
  • fuzzy logic The basics of fuzzy logic will be as known (see for example the book “Fuzzy Set Theory and its Applications "by H.-J. Zimmermann, Kluver Academic Publishers, 1991 or the European patent application EP-A-646901 by Cerberus AG) which was published on April 5, 1995 and has a priority date of October 4, 1993. It is only here recalls that the central concept of fuzzy logic is the fuzzy sets or unsharp ones Are sets, with the membership of elements in a fuzzy set by the so-called membership or membership function is defined. While at sharp sets mean one belonging and zero not belonging in the fuzzy sets as values for the membership function are not just zero and one, but any values in between allowed.
  • each input variable which is one of the signals mentioned above, at least one so-called membership function depicted as a matrix.
  • the x scaling this function has an equivalent in the respective signal, and the y scaling corresponds to the truth content or the degree of approximation to the respective Statement and can take any value from 0 to 1.
  • the determination of the frequencies ⁇ m and ⁇ g can be done with a fast Fourier transform (FFT) or with simpler and / or faster methods such as zero crossing (determination of the zero crossings) or determination of the distance between the peaks or wavelet analysis or spectral analysis (see also M. Kunt: Traitement Numérique des Signaux, Presses Polytechniques Romandes).
  • FFT fast Fourier transform
  • simpler and / or faster methods such as zero crossing (determination of the zero crossings) or determination of the distance between the peaks or wavelet analysis or spectral analysis
  • Flame detectors are known to detect the flame radiation of possible fire locations, this flame radiation, which is heat and thus infrared radiation, reaches the detector through direct or indirect radiation.
  • the detectors usually contain two pyroelectric sensors that are sensitive to two different wavelengths.
  • the first sensor reacts to the infrared active flame gases in the characteristic CO 2 spectral range from 4.1 to 4.7 ⁇ m, which are formed when carbonaceous materials are burned off, and the second sensor measures the infrared energy in the wavelength range from 5 to 6 ⁇ m, which is caused by interference sources such as sunlight. artificial light or radiant heaters.
  • FIG. 3 shows a highly simplified block diagram of a flame detector according to the invention, which essentially consists of an infrared-sensitive sensor 1, an amplifier 2 and a microprocessor or microcontroller 3 containing an A / D converter.
  • a filter 4 is connected upstream of the sensor 1, which has an impedance converter, and is only permeable for radiation from the characteristic CO 2 spectral range mentioned, preferably for a wavelength of 4.3 ⁇ m.
  • the radiation of this wavelength incident on the sensor 1 generates a corresponding voltage signal at the output of the sensor, which after amplification in the amplifier 2 reaches the microprocessor 3 and is evaluated there.
  • This microprocessor now defines the three variables square signal x i 2 , center frequency ⁇ m and cut-off frequency ⁇ g and evaluates these variables, the signal evaluation being able to take place in the first way already mentioned or by means of fuzzy logic.
  • the microprocessor (microcontroller) 3 contains a fuzzy controller, the rule base in a known manner with the fuzzy rules given above and includes an inference engine.
  • the flame detector can also have more than one sensor, for example 2 sensors.
  • the flame detector described has the advantage that the examination of the periodicity of the flicker frequency and the determination of the center and cut-off frequency and their comparison with the two frequency values G 1 and G 2 provides a simple criterion for distinguishing between useful radiation and interference radiation.
  • the signal evaluation using fuzzy logic offers the additional advantage that relatively simple algorithms can be used, as a result of which the computation and storage effort remains within a modest framework.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Control Of Combustion (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Claims (8)

  1. Procédé de détection d'une flamme par analyse de la variation d'intensité du rayonnement émis par une source de rayonnement, une exploitation du spectre de fréquence de scintillement du rayonnement s'effectuant et des signaux se trouvant à l'extérieur d'une bande de fréquence déterminée étant évalués comme signaux parasites, caractérisé en ce que l'on analyse la fréquence du rayonnement et on détermine en l'occurrence la fréquence (ωmp, ωmc) moyenne et la fréquence (ωgp, ωgc) limite et on fait la distinction entre des signaux périodiques et des signaux non périodiques, et en ce que on évalue comme signaux parasites des signaux périodiques ayant une fréquence (ωm) moyenne supérieure à une première valeur (G1) de fréquence et des signaux non périodiques ayant une fréquence (ωg) limite supérieure à une deuxième valeur (G2) de fréquence, la première valeur de fréquence étant déterminée par la fréquence de scintillement d'une flamme stationnaire ayant une dimension correspondant à la dimension minimum de flamme à détecter et la deuxième valeur de fréquence étant choisie plus grande que la première.
  2. Procédé suivant la revendication 1, caractérisé en ce que, pour déterminer la première valeur (G1) de fréquence, on calcule la fréquence de scintillement d'une flamme stationnaire de la dimension minimum mentionnée, et en ce que l'on choisit la première valeur limite plus grande que cette fréquence de scintillement.
  3. Procédé suivant la revendication 2, caractérisé en ce que l'on choisit la deuxième valeur (G2) limite de façon qu'elle ne soit pas plus petite que le triple de la valeur de la fréquence de scintillement mentionnée et donc qu'elle soit à peu près trois fois plus grande que la première valeur (G1) de fréquence.
  4. Procédé suivant l'une des revendications 1 à 3, caractérisé en ce que, pour faire la distinction entre des signaux périodiques et non périodiques, on forme le quotient de la différence de la fréquence limite et de la fréquence moyenne (ωg - ωm) sur la fréquence (ωg) limite et on utilise la valeur de ce quotient comme critère pour la périodicité ou non périodicité des signaux, une valeur de l'ordre de grandeur de un désignant un signal non périodique et une valeur nettement inférieure à un désignant un signal périodique.
  5. Procédé suivant l'une des revendications 1 à 3, caractérisé en ce que l'on effectue l'exploitation du spectre de fréquence du scintillement du rayonnement par une transformation rapide de Fourier, par détermination des passages à zéro ou par analyse spectrale.
  6. Détecteur de flamme comportant des moyens pour la mise en oeuvre du procédé suivant la revendication 1, comportant au moins un capteur (1) pour le rayonnement émis par la source de rayonnement, et comportant une électronique d'exploitation qui est montée en aval du au moins un capteur, caractérisé en ce que l'électronique d'exploitation comporte des moyens pour analyser le rayonnement reçu et sa fréquence (ωmp, ωmc) moyenne et sa fréquence (ωgp, ωgc) limite et pour relier à ces fréquences les signaux de capteur correspondant au rayonnement reçu.
  7. Détecteur de flamme suivant la revendication 6, caractérisé en ce que lesdits moyens sont formés par un microprocesseur (3) et en ce que ce microprocesseur contient un contrôleur de logique floue.
  8. Détecteur de flamme suivant la revendication 7, caractérisé en ce que le contrôleur de logique floue contient une ou plusieurs des règles de logique floue suivante :
    Si signal de capteur, alors état normal.
    Si [signal non périodique et fréquence (ωgc) limite petite ou moyenne et signal de capteur grand], alors flamme.
    Si [signal non périodique et fréquence (ωgc) limite grande et signal de capteur grand], alors parasiteur à large bande.
    Si [signal périodique et fréquence (ωgp) limite petite et signal de capteur grand], alors flamme.
    Si [signal périodique et fréquence (ωgp) limite moyenne ou grande et signal de capteur grand], alors parasiteur périodique.
EP94120083A 1994-12-19 1994-12-19 Procédé et dispositif de détection de flamme Expired - Lifetime EP0718814B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE59409799T DE59409799D1 (de) 1994-12-19 1994-12-19 Verfahren und Anordnung zum Detektieren einer Flamme
EP94120083A EP0718814B1 (fr) 1994-12-19 1994-12-19 Procédé et dispositif de détection de flamme
AT94120083T ATE203118T1 (de) 1994-12-19 1994-12-19 Verfahren und anordnung zum detektieren einer flamme
AU37810/95A AU703685B2 (en) 1994-12-19 1995-11-13 Method of detecting a flame and flame detector for carrying out the method
CZ19953218A CZ289921B6 (cs) 1994-12-19 1995-12-05 Způsob detekce plamene, hlásič plamene a způsob provozu hlásiče plamene
CN95120895A CN1099660C (zh) 1994-12-19 1995-12-19 探测火焰的方法及实施该方法的火焰报警器
US08/574,773 US5594421A (en) 1994-12-19 1995-12-19 Method and detector for detecting a flame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94120083A EP0718814B1 (fr) 1994-12-19 1994-12-19 Procédé et dispositif de détection de flamme

Publications (2)

Publication Number Publication Date
EP0718814A1 EP0718814A1 (fr) 1996-06-26
EP0718814B1 true EP0718814B1 (fr) 2001-07-11

Family

ID=8216544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94120083A Expired - Lifetime EP0718814B1 (fr) 1994-12-19 1994-12-19 Procédé et dispositif de détection de flamme

Country Status (7)

Country Link
US (1) US5594421A (fr)
EP (1) EP0718814B1 (fr)
CN (1) CN1099660C (fr)
AT (1) ATE203118T1 (fr)
AU (1) AU703685B2 (fr)
CZ (1) CZ289921B6 (fr)
DE (1) DE59409799D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123423A (zh) * 2020-03-27 2020-05-08 上海翼捷工业安全设备股份有限公司 火焰探测用双通道红外滤光片组合及其制备方法和应用

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6507023B1 (en) 1996-07-31 2003-01-14 Fire Sentry Corporation Fire detector with electronic frequency analysis
US6518574B1 (en) 1996-03-01 2003-02-11 Fire Sentry Corporation Fire detector with multiple sensors
US6515283B1 (en) 1996-03-01 2003-02-04 Fire Sentry Corporation Fire detector with modulation index measurement
EP0834845A1 (fr) * 1996-10-04 1998-04-08 Cerberus Ag Procédé d'analyse en fréquence d'un signal
US5850182A (en) * 1997-01-07 1998-12-15 Detector Electronics Corporation Dual wavelength fire detection method and apparatus
US5995008A (en) * 1997-05-07 1999-11-30 Detector Electronics Corporation Fire detection method and apparatus using overlapping spectral bands
AU768582B2 (en) * 1998-06-02 2003-12-18 Hochiki Kabushiki Kaisha Flame detection device and flame detection method
DE19841475C1 (de) * 1998-09-10 2000-02-03 Electrowatt Tech Innovat Corp Flammenüberwachungssystem und Verfahren zur Überwachung einer Flamme
US6879253B1 (en) * 2000-03-15 2005-04-12 Siemens Building Technologies Ag Method for the processing of a signal from an alarm and alarms with means for carrying out said method
US6184792B1 (en) 2000-04-19 2001-02-06 George Privalov Early fire detection method and apparatus
US7244946B2 (en) * 2004-05-07 2007-07-17 Walter Kidde Portable Equipment, Inc. Flame detector with UV sensor
JP2010249769A (ja) * 2009-04-20 2010-11-04 Oki Denki Bosai Kk 炎監視装置
US8260523B2 (en) * 2009-05-04 2012-09-04 General Electric Company Method for detecting gas turbine engine flashback
US9251683B2 (en) 2011-09-16 2016-02-02 Honeywell International Inc. Flame detector using a light guide for optical sensing
CN111141504B (zh) * 2019-12-25 2022-04-15 Oppo（重庆）智能科技有限公司 一种断火检测方法、装置及计算机可读存储介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759559A (fr) * 1969-12-03 1971-04-30 Cerberus Ag Dispositif pour detecter un incendie ou des flammes
DE2823410A1 (de) * 1978-04-25 1979-11-08 Cerberus Ag Flammenmelder
US4206454A (en) * 1978-05-08 1980-06-03 Chloride Incorporated Two channel optical flame detector
US4709155A (en) * 1984-11-22 1987-11-24 Babcock-Hitachi Kabushiki Kaisha Flame detector for use with a burner
JPS61178621A (ja) * 1985-02-04 1986-08-11 Hochiki Corp 炎検出装置
JPS63151827A (ja) * 1986-12-17 1988-06-24 Hochiki Corp 火災判断装置
US4866420A (en) * 1988-04-26 1989-09-12 Systron Donner Corp. Method of detecting a fire of open uncontrolled flames
US4988884A (en) * 1988-11-22 1991-01-29 Walter Kidde Aerospace, Inc. High temperature resistant flame detector
WO1990009012A1 (fr) * 1989-01-25 1990-08-09 Nohmi Bosai Kabushiki Kaisha Alarme contre les incendies
US5073769A (en) * 1990-10-31 1991-12-17 Honeywell Inc. Flame detector using a discrete fourier transform to process amplitude samples from a flame signal
US5434560A (en) * 1993-05-11 1995-07-18 Detector Electronics Corporation System for detecting random events
CH686805A5 (de) * 1993-10-04 1996-06-28 Cerberus Ag Verfahren zur Verarbeitung der Signale eines passiven Infrarot-Detektors und Infrarot-Detektor zur Durchfuehrung des Verfahrens.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123423A (zh) * 2020-03-27 2020-05-08 上海翼捷工业安全设备股份有限公司 火焰探测用双通道红外滤光片组合及其制备方法和应用

Also Published As

Publication number Publication date
DE59409799D1 (de) 2001-08-16
CN1099660C (zh) 2003-01-22
US5594421A (en) 1997-01-14
CZ321895A3 (en) 1996-07-17
CZ289921B6 (cs) 2002-04-17
EP0718814A1 (fr) 1996-06-26
CN1132889A (zh) 1996-10-09
ATE203118T1 (de) 2001-07-15
AU3781095A (en) 1996-06-27
AU703685B2 (en) 1999-04-01

Similar Documents

Publication Publication Date Title
EP0718814B1 (fr) Procédé et dispositif de détection de flamme
DE69634450T2 (de) Multi-Signatur-Brandmelder
EP1022700B1 (fr) Détecteur d'incendie par lumière dispersée
DE60309044T2 (de) Schätzen von verbrennungsemissionen mit einem flammenüberwachungssystem
DE19629275A1 (de) Verfahren und Vorrichtung zur Unterscheidung verschiedener Arten eines Feuers
DE2836895C2 (de) Schaltungsanordnung zur Überwachung einer Gasfackel
DE2737089C2 (de) Temperaturstrahlungsdetektor zur Flammenüberwachung
DE19934171B4 (de) Filtersystem und -verfahren
EP2603907B1 (fr) Évaluation de signaux de lumière diffusée dans le cas d'un avertisseur optique de danger, et émission d'un avertissement de présence de poussière /vapeur ou d'une alarme incendie
DE2736417C2 (de) Temperaturstrahlungsdetektor zur Flammenüberwachung
DE69434352T2 (de) Vorrichtung und Verfahren zur Datenverarbeitung in einem Rauchmeldesystem
EP0338218B1 (fr) Méthode de détection précoce d'incendie
DE2915884A1 (de) Flammendetektor
EP1759187A1 (fr) Detecteur ir, en particulier detecteur de co2
DE19622806A1 (de) Verfahren und Vorrichtung zum Erfassen eines Feuers mit verschiedenen Arten von Feuersensoren
DE4227727C2 (de) Verfahren zur Zustandserkennung gasförmiger und flüssiger Medien mittels Multisensorsystemen
WO2002095705A1 (fr) Systeme de detection d'incendie a auto-aspiration
DE19628050A1 (de) Infrarotmeßvorrichtung und Verfahren der Erfassung eines menschlichen Körpers durch diese
DE10109362A1 (de) Verfahren zur Branderkennung
EP0865646B1 (fr) Procede d'analyse du signal d'un avertisseur de danger, et avertisseur de danger pour la mise en oeuvre de ce procede
DE3240559A1 (de) Verfahren zur kontinuierlichen messung der masse von aerosolteilchen in gasfoermigen proben sowie vorrichtung zur durchfuehrung des verfahrens
EP0660282B1 (fr) Système pour la détection de débuts d'incendies
DE4002829C2 (de) Verfahren zum Detektieren von Metallgegenständen
WO2000021046A1 (fr) Avertisseur d'incendie
EP0421100B1 (fr) Procédé et dispositif pour reconnaître des conditions dangereuses dans une pièce

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19961216

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS BUILDING TECHNOLOGIES AG

17Q First examination report despatched

Effective date: 19991021

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS BUILDING TECHNOLOGIES AG

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010711

REF Corresponds to:

Ref document number: 203118

Country of ref document: AT

Date of ref document: 20010715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010711

REF Corresponds to:

Ref document number: 59409799

Country of ref document: DE

Date of ref document: 20010816

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011011

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011011

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011011

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020131

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: DETECTOMAT GMBH

Effective date: 20020411

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20050226

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SIEMENS BUILDING TECHNOLOGIES AG C-IPR

Free format text: SIEMENS BUILDING TECHNOLOGIES AG#BELLERIVESTRASSE 36#8034 ZUERICH (CH) -TRANSFER TO- SIEMENS BUILDING TECHNOLOGIES AG C-IPR#GUBELSTRASSE 22#6300 ZUG (CH)

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SIEMENS AKTIENGESELLSCHAFT

Free format text: SIEMENS BUILDING TECHNOLOGIES AG C-IPR#GUBELSTRASSE 22#6300 ZUG (CH) -TRANSFER TO- SIEMENS AKTIENGESELLSCHAFT#WITTELSBACHERPLATZ 2#80333 MUENCHEN (DE)

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20090514 AND 20090520

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20091214

Year of fee payment: 16

BECA Be: change of holder's address

Owner name: SIEMENS A.G.WITTELSBACHERPLATZ 2, DE-80333 MUENCHE

Effective date: 20100423

BECH Be: change of holder

Owner name: SIEMENS A.G.

Effective date: 20100423

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20091216

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20101110

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20101229

Year of fee payment: 17

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20111227

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101219

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 203118

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121219

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121219

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20131212

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20140313

Year of fee payment: 20

Ref country code: DE

Payment date: 20140219

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59409799

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20141218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20141218