CA2010105C - Method of operating an ionization smoke alarm and ionization smoke alarm - Google Patents

Method of operating an ionization smoke alarm and ionization smoke alarm

Info

Publication number
CA2010105C
CA2010105C CA002010105A CA2010105A CA2010105C CA 2010105 C CA2010105 C CA 2010105C CA 002010105 A CA002010105 A CA 002010105A CA 2010105 A CA2010105 A CA 2010105A CA 2010105 C CA2010105 C CA 2010105C
Authority
CA
Canada
Prior art keywords
chamber
determination circuit
circuit parameter
field strength
reference value
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 - Fee Related
Application number
CA002010105A
Other languages
English (en)
French (fr)
Other versions
CA2010105A1 (en
Inventor
Hartwig Beyersdorf
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2010105A1 publication Critical patent/CA2010105A1/en
Application granted granted Critical
Publication of CA2010105C publication Critical patent/CA2010105C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/043—Monitoring of the detection circuits of fire detection circuits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA002010105A 1989-02-18 1990-02-15 Method of operating an ionization smoke alarm and ionization smoke alarm Expired - Fee Related CA2010105C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904979A DE3904979A1 (de) 1989-02-18 1989-02-18 Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder
DEP3904979.5 1989-02-18

Publications (2)

Publication Number Publication Date
CA2010105A1 CA2010105A1 (en) 1990-08-18
CA2010105C true CA2010105C (en) 1996-11-12

Family

ID=6374392

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002010105A Expired - Fee Related CA2010105C (en) 1989-02-18 1990-02-15 Method of operating an ionization smoke alarm and ionization smoke alarm

Country Status (7)

Country Link
EP (1) EP0384209B1 (da)
JP (1) JPH02251748A (da)
AT (1) ATE98798T1 (da)
CA (1) CA2010105C (da)
DE (2) DE3904979A1 (da)
DK (1) DK0384209T3 (da)
ES (1) ES2048332T3 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423489A1 (de) * 1989-09-15 1991-04-24 Cerberus Ag Brandmeldeanlage mit Ueberwachung
CH681932A5 (da) * 1990-12-04 1993-06-15 Cerberus Ag
WO1994012958A1 (en) * 1992-11-26 1994-06-09 Secom Co., Ltd. Burglar-proofing system and theft proofing apparatus
DE59808963D1 (de) * 1997-10-21 2003-08-14 Siemens Ag Raumüberwachungssensor
JP4550320B2 (ja) * 2001-06-11 2010-09-22 理研計器株式会社 イオン化式ガス感知器
FR3017232B1 (fr) * 2014-02-03 2017-09-01 Finsecur Boitier de securisation d'un local, systemes de securisation et de commande d'un local et procede de construction d'un mur
DE102015004458B4 (de) 2014-06-26 2016-05-12 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor zur Prognostizierung eines folgenden Betriebszustands
DE102014019773B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
DE102014019172B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147039B1 (da) * 1969-04-04 1976-12-13
JPS529998B1 (da) * 1969-04-25 1977-03-19
CH497755A (de) * 1969-06-24 1970-10-15 Cerberus Ag Ionisationsfeuermelder
DE2121382A1 (de) * 1971-04-30 1972-12-21 Preussag Ag Feuerschutz Iomsations Feuermelder
DE2257931B2 (de) * 1972-11-25 1978-03-30 Hochiki Corp., Tokio Vorrichtung zur ständigen Funktionsüberwachung eines Feueralarmsystems o.dgl
CH1866172A4 (da) * 1972-12-21 1975-10-15
CH583445A5 (da) * 1974-06-14 1976-12-31 Cerberus Ag
CH572644A5 (en) * 1974-06-24 1976-02-13 Cerberus Ag Ionisation chamber fire detector - with threshold cct. monitoring ionisation current connected to switch cct. for further chamber
CH617280A5 (en) * 1976-08-16 1980-05-14 Hartwig Beyersdorf Ionisation fire detector
CH629905A5 (de) * 1978-07-17 1982-05-14 Cerberus Ag Gas- und/oder brandmeldeanlage.
ZA786519B (en) * 1978-11-20 1980-02-27 Anglo Amer Corp South Africa Detector
DE3004753C2 (de) * 1980-02-08 1983-12-22 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Brandmeldeeinrichtung
DE3050185A1 (de) * 1980-02-08 1982-12-02 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Brandmeldeeinrichtung
CH657222A5 (de) * 1981-01-12 1986-08-15 Pyrotector Inc Ionisations-detektor sowie verwendung desselben.
DE3123451A1 (de) * 1981-06-12 1982-12-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur stoerungserkennung in gefahren-, insbesondere brandmeldeanlagen
DE3127324A1 (de) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur erhoehung der ansprechempfindlichkeit und der stoersicherheit in einer gefahren-, insbesondere brandmeldeanlage
EP0121048B1 (de) * 1983-03-04 1987-05-06 Cerberus Ag Schaltungsanordnung zur Störpegel-Überwachung von Meldern, die in einer Gefahrenmeldeanlage angeordnet sind

Also Published As

Publication number Publication date
DE3904979C2 (da) 1992-01-09
CA2010105A1 (en) 1990-08-18
EP0384209A3 (de) 1991-05-08
DE3904979A1 (de) 1990-08-23
EP0384209A2 (de) 1990-08-29
DE59003821D1 (de) 1994-01-27
ES2048332T3 (es) 1994-03-16
ATE98798T1 (de) 1994-01-15
DK0384209T3 (da) 1994-02-14
JPH02251748A (ja) 1990-10-09
EP0384209B1 (de) 1993-12-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed