EP0940789A3 - Method and sensor for fire detection - Google Patents

Method and sensor for fire detection Download PDF

Info

Publication number
EP0940789A3
EP0940789A3 EP99103015A EP99103015A EP0940789A3 EP 0940789 A3 EP0940789 A3 EP 0940789A3 EP 99103015 A EP99103015 A EP 99103015A EP 99103015 A EP99103015 A EP 99103015A EP 0940789 A3 EP0940789 A3 EP 0940789A3
Authority
EP
European Patent Office
Prior art keywords
signals
wave
types
combination
reception signal
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
EP99103015A
Other languages
German (de)
French (fr)
Other versions
EP0940789B1 (en
EP0940789A2 (en
Inventor
Valentin Dr. Magori
Heinrich Ruser
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 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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0940789A2 publication Critical patent/EP0940789A2/en
Publication of EP0940789A3 publication Critical patent/EP0940789A3/en
Application granted granted Critical
Publication of EP0940789B1 publication Critical patent/EP0940789B1/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
    • 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
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • 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
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • G08B29/186—Fuzzy logic; neural networks

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Artificial Intelligence (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The fire alarm method involves transmission of ultrasound signals from one transmitter and microwave- or optical- signals, or a combination of all three different wave-types from an additional transmitter. Doppler signals reflected from objects are received by receivers assigned to the transmitters, and the received signals are evaluated separately and in combination, so that a varied reception signal is detected for one type of wave, in the case that a reception signal for one or more other types of wave shows no movement, smoke, particles or variation in the gas composition in the detection zone.
EP99103015A 1998-03-06 1999-02-15 Method for fire detection Expired - Lifetime EP0940789B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809763 1998-03-06
DE19809763A DE19809763A1 (en) 1998-03-06 1998-03-06 Fire detection method and sensor

Publications (3)

Publication Number Publication Date
EP0940789A2 EP0940789A2 (en) 1999-09-08
EP0940789A3 true EP0940789A3 (en) 2000-08-16
EP0940789B1 EP0940789B1 (en) 2002-10-23

Family

ID=7860027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103015A Expired - Lifetime EP0940789B1 (en) 1998-03-06 1999-02-15 Method for fire detection

Country Status (4)

Country Link
EP (1) EP0940789B1 (en)
AT (1) ATE226747T1 (en)
DE (2) DE19809763A1 (en)
ES (1) ES2186261T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7221260B2 (en) * 2003-11-21 2007-05-22 Honeywell International, Inc. Multi-sensor fire detectors with audio sensors and systems thereof
DE10360485B4 (en) * 2003-12-22 2005-11-24 Airbus Deutschland Gmbh Method and device for temperature monitoring along a measuring line
JP6694636B2 (en) * 2016-01-27 2020-05-20 国立大学法人弘前大学 Flame detection sensor and flame detection method
US11132884B2 (en) 2019-06-14 2021-09-28 Carrier Corporation Smoke and steam detector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103375A1 (en) * 1982-07-22 1984-03-21 Monicell Limited Alarm system
US4625199A (en) * 1985-01-14 1986-11-25 American District Telegraph Company Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
EP0467388A2 (en) * 1990-07-20 1992-01-22 Spectronix Ltd. Method for detecting fire, explosion, and/or projectile penetration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318974C2 (en) * 1983-05-25 1985-10-17 Preussag AG Bauwesen, 3005 Hemmingen Flame detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103375A1 (en) * 1982-07-22 1984-03-21 Monicell Limited Alarm system
US4625199A (en) * 1985-01-14 1986-11-25 American District Telegraph Company Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
EP0467388A2 (en) * 1990-07-20 1992-01-22 Spectronix Ltd. Method for detecting fire, explosion, and/or projectile penetration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RUSER, H; MAGORI, V.: "FIRE DETECTION WITH A COMBINED ULTRASONIC-MICROWAVE DOPPLER SENSOR", 4 October 1998, IEEE ULTRASONICS SYMPOSIUM, USA, XP002140398 *

Also Published As

Publication number Publication date
DE19809763A1 (en) 1999-12-02
EP0940789B1 (en) 2002-10-23
DE59903134D1 (en) 2002-11-28
ATE226747T1 (en) 2002-11-15
ES2186261T3 (en) 2003-05-01
EP0940789A2 (en) 1999-09-08

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