ATE250795T1 - FIRE DETECTORS AND METHOD FOR FIRE DETECTION - Google Patents

FIRE DETECTORS AND METHOD FOR FIRE DETECTION

Info

Publication number
ATE250795T1
ATE250795T1 AT00110782T AT00110782T ATE250795T1 AT E250795 T1 ATE250795 T1 AT E250795T1 AT 00110782 T AT00110782 T AT 00110782T AT 00110782 T AT00110782 T AT 00110782T AT E250795 T1 ATE250795 T1 AT E250795T1
Authority
AT
Austria
Prior art keywords
fire
detectors
detection
ratio
detector
Prior art date
Application number
AT00110782T
Other languages
German (de)
Inventor
Friedrich Klenk
Original Assignee
Securiton 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 Securiton Ag filed Critical Securiton Ag
Application granted granted Critical
Publication of ATE250795T1 publication Critical patent/ATE250795T1/en

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
    • G08B29/20—Calibration, including self-calibrating arrangements
    • G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Measuring Volume Flow (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

The fire detector has a fan (14) that draws air through a tube into a measurement chamber (3). Built into the chamber is a detector (4) that measures the volumetric flow rate. This is compared as a ratio with the power of the motor (8) and the ratio depends upon the density of the flow and this changes with the content of smoke.
AT00110782T 1999-05-27 2000-05-20 FIRE DETECTORS AND METHOD FOR FIRE DETECTION ATE250795T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924400A DE19924400C1 (en) 1999-05-27 1999-05-27 Fire detectors and fire detection methods

Publications (1)

Publication Number Publication Date
ATE250795T1 true ATE250795T1 (en) 2003-10-15

Family

ID=7909415

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00110782T ATE250795T1 (en) 1999-05-27 2000-05-20 FIRE DETECTORS AND METHOD FOR FIRE DETECTION

Country Status (3)

Country Link
EP (1) EP1056062B1 (en)
AT (1) ATE250795T1 (en)
DE (2) DE19924400C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251891B4 (en) * 2002-10-07 2007-07-26 Wagner Alarm- Und Sicherungssysteme Gmbh Device for determining flow variables and method for operating such a device
WO2004034001A1 (en) 2002-10-07 2004-04-22 Wagner Alarm- Und Sicherungssysteme Gmbh Device for the determination of flow parameters for a fluid and method for operating such a device
DE102004044094A1 (en) 2004-09-09 2006-03-30 Hekatron Vertriebs Gmbh Intake fire detector and method of operation
US7504962B2 (en) 2005-11-22 2009-03-17 Joseph Stephen Smith Apparatus for enclosing a smoke detector
DE502006000573D1 (en) 2006-01-07 2008-05-15 Hekatron Vertriebs Gmbh Method and device for detecting a fire
DE102009031099A1 (en) * 2009-06-29 2010-12-30 Ista International Gmbh Smoke alarm device and method for checking the contamination of smoke openings
EP2407946B1 (en) * 2010-07-15 2012-09-05 Siemens Schweiz AG Detection of blockages and interruptions in an aspirating smoke detector (ASD)
CN113160514B (en) * 2020-01-22 2023-01-03 中移物联网有限公司 Air duct type smoke sensing system
EP3907484B1 (en) 2020-05-08 2023-08-30 Carrier Corporation Detection of leakage in an aspirating fire detection system
CN113586894A (en) * 2021-07-26 2021-11-02 广东爱得威建设(集团)股份有限公司 Wisdom building security protection detection device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81447C (en) * 1987-09-15 1990-10-10 Ilmaterae Oy ANALYZING FOLLOWING VOLUME IN BLAESTER.
DE3808890A1 (en) * 1988-03-17 1989-09-28 Ewald Hennel Method for ventilating a room
US5163818A (en) * 1990-02-05 1992-11-17 Ametek, Inc. Automatic constant air flow rate pump unit for sampling air
DE4244633A1 (en) * 1992-12-30 1994-07-07 Hansa Ventilatoren Masch Energy-saving cooling plant
DE4428694C2 (en) * 1994-08-12 1996-06-20 Wagner Alarm Sicherung Air pressure compensated fire detection device and method

Also Published As

Publication number Publication date
EP1056062A2 (en) 2000-11-29
EP1056062B1 (en) 2003-09-24
DE19924400C1 (en) 2001-01-25
EP1056062A3 (en) 2002-02-20
DE50003792D1 (en) 2003-10-30

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Legal Events

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