EP0122432A1 - Détecteur de fumée photoélectrique équipé avec un essai de fonctionnement de la détection de fumée - Google Patents

Détecteur de fumée photoélectrique équipé avec un essai de fonctionnement de la détection de fumée Download PDF

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Publication number
EP0122432A1
EP0122432A1 EP84102465A EP84102465A EP0122432A1 EP 0122432 A1 EP0122432 A1 EP 0122432A1 EP 84102465 A EP84102465 A EP 84102465A EP 84102465 A EP84102465 A EP 84102465A EP 0122432 A1 EP0122432 A1 EP 0122432A1
Authority
EP
European Patent Office
Prior art keywords
level
output
gate
signal
circuit
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
EP84102465A
Other languages
German (de)
English (en)
Other versions
EP0122432B1 (fr
Inventor
Toshikazu C/O Nohmi Bosai Kogyo Co. Ltd. Morita
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai Kogyo Co 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
Application filed by Nohmi Bosai Kogyo Co Ltd filed Critical Nohmi Bosai Kogyo Co Ltd
Publication of EP0122432A1 publication Critical patent/EP0122432A1/fr
Application granted granted Critical
Publication of EP0122432B1 publication Critical patent/EP0122432B1/fr
Expired legal-status Critical Current

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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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking 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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
EP19840102465 1983-03-21 1984-03-08 Détecteur de fumée photoélectrique équipé avec un essai de fonctionnement de la détection de fumée Expired EP0122432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4668383A JPS59172094A (ja) 1983-03-21 1983-03-21 煙検出機能試験装置を備えた光電式煙感知器
JP46683/83 1983-03-21

Publications (2)

Publication Number Publication Date
EP0122432A1 true EP0122432A1 (fr) 1984-10-24
EP0122432B1 EP0122432B1 (fr) 1987-12-23

Family

ID=12754171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840102465 Expired EP0122432B1 (fr) 1983-03-21 1984-03-08 Détecteur de fumée photoélectrique équipé avec un essai de fonctionnement de la détection de fumée

Country Status (3)

Country Link
EP (1) EP0122432B1 (fr)
JP (1) JPS59172094A (fr)
DE (1) DE3468286D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213383A1 (fr) * 1985-07-29 1987-03-11 Siemens Aktiengesellschaft Méthode et dispositif de surveillance du fonctionnement de détecteurs optiques de fumée
GB2293877A (en) * 1994-09-27 1996-04-10 Hochiki Co Projected beam type smoke detector and receiving unit
GB2326474A (en) * 1994-09-27 1998-12-23 Hochiki Co Projected beam type smoke detector and receiving unit
WO2004034348A1 (fr) * 2002-10-04 2004-04-22 Valery Vasilievich Ovchinnikov Procede de formation et de transmission de signaux

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
EP0067339A2 (fr) * 1981-06-12 1982-12-22 Siemens Aktiengesellschaft Méthode et arrangement pour détecter des perturbations dans des systèmes de signalisation de risques, en particulier signalisation d'incendie
US4374329A (en) * 1981-04-24 1983-02-15 Pittway Corporation Smoke detector with test apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612707Y2 (fr) * 1972-09-16 1981-03-24
JPS507583A (fr) * 1973-05-17 1975-01-25
JPS5377199A (en) * 1976-12-20 1978-07-08 Matsushita Electric Ind Co Ltd Fire detector
JPS57102873U (fr) * 1980-12-15 1982-06-24
JPS57172495A (en) * 1981-04-15 1982-10-23 Nittan Co Ltd Select test circuit for fire sensor, etc.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
US4374329A (en) * 1981-04-24 1983-02-15 Pittway Corporation Smoke detector with test apparatus
EP0067339A2 (fr) * 1981-06-12 1982-12-22 Siemens Aktiengesellschaft Méthode et arrangement pour détecter des perturbations dans des systèmes de signalisation de risques, en particulier signalisation d'incendie

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213383A1 (fr) * 1985-07-29 1987-03-11 Siemens Aktiengesellschaft Méthode et dispositif de surveillance du fonctionnement de détecteurs optiques de fumée
GB2293877A (en) * 1994-09-27 1996-04-10 Hochiki Co Projected beam type smoke detector and receiving unit
GB2326474A (en) * 1994-09-27 1998-12-23 Hochiki Co Projected beam type smoke detector and receiving unit
GB2293877B (en) * 1994-09-27 1999-03-24 Hochiki Co Projected beam-type smoke detector and receiving unit
WO2004034348A1 (fr) * 2002-10-04 2004-04-22 Valery Vasilievich Ovchinnikov Procede de formation et de transmission de signaux
CN100593179C (zh) * 2002-10-04 2010-03-03 瓦列里·瓦西里耶维奇·奥夫奇尼科夫 信号的形成和传送方法
US7522037B2 (en) 2002-10-10 2009-04-21 Valery Vasilievich Ovchinnikov Method for forming and transmitting signals

Also Published As

Publication number Publication date
EP0122432B1 (fr) 1987-12-23
DE3468286D1 (en) 1988-02-04
JPH0441396B2 (fr) 1992-07-08
JPS59172094A (ja) 1984-09-28

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