JPH0441396B2 - - Google Patents

Info

Publication number
JPH0441396B2
JPH0441396B2 JP58046683A JP4668383A JPH0441396B2 JP H0441396 B2 JPH0441396 B2 JP H0441396B2 JP 58046683 A JP58046683 A JP 58046683A JP 4668383 A JP4668383 A JP 4668383A JP H0441396 B2 JPH0441396 B2 JP H0441396B2
Authority
JP
Japan
Prior art keywords
output
circuit
signal
gate
fire
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
JP58046683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59172094A (ja
Inventor
Shunichi 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 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 Ltd filed Critical Nohmi Bosai Ltd
Priority to JP4668383A priority Critical patent/JPS59172094A/ja
Priority to DE8484102465T priority patent/DE3468286D1/de
Priority to EP19840102465 priority patent/EP0122432B1/en
Publication of JPS59172094A publication Critical patent/JPS59172094A/ja
Publication of JPH0441396B2 publication Critical patent/JPH0441396B2/ja
Granted 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
    • G08B29/12—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

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-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire Alarms (AREA)
JP4668383A 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 Granted JPS59172094A (ja)

Priority Applications (3)

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
DE8484102465T DE3468286D1 (en) 1983-03-21 1984-03-08 Photoelectric smoke detector equipped with smoke detecting function test means
EP19840102465 EP0122432B1 (en) 1983-03-21 1984-03-08 Photoelectric smoke detector equipped with smoke detecting function test means

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS59172094A JPS59172094A (ja) 1984-09-28
JPH0441396B2 true JPH0441396B2 (ko) 1992-07-08

Family

ID=12754171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4668383A Granted 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

Country Status (3)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE52632T1 (de) * 1985-07-29 1990-05-15 Siemens Ag Verfahren und vorrichtung zur betriebsmaessigen ueberwachung optischer rauchmelder.
US5751216A (en) * 1994-09-27 1998-05-12 Hochiki Kabushiki Kaisha 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
US7522037B2 (en) 2002-10-10 2009-04-21 Valery Vasilievich Ovchinnikov Method for forming and transmitting signals

Citations (3)

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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612707Y2 (ko) * 1972-09-16 1981-03-24
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
JPS57102873U (ko) * 1980-12-15 1982-06-24
US4374329A (en) * 1981-04-24 1983-02-15 Pittway Corporation Smoke detector with test apparatus
DE3123451A1 (de) * 1981-06-12 1982-12-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur stoerungserkennung in gefahren-, insbesondere brandmeldeanlagen

Patent Citations (3)

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

Also Published As

Publication number Publication date
JPS59172094A (ja) 1984-09-28
EP0122432B1 (en) 1987-12-23
DE3468286D1 (en) 1988-02-04
EP0122432A1 (en) 1984-10-24

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