CH694649A5 - Rauchsensor des Lichtstörungstyps. - Google Patents

Rauchsensor des Lichtstörungstyps. Download PDF

Info

Publication number
CH694649A5
CH694649A5 CH00217/99A CH21799A CH694649A5 CH 694649 A5 CH694649 A5 CH 694649A5 CH 00217/99 A CH00217/99 A CH 00217/99A CH 21799 A CH21799 A CH 21799A CH 694649 A5 CH694649 A5 CH 694649A5
Authority
CH
Switzerland
Prior art keywords
light
level
generation control
sensor
received light
Prior art date
Application number
CH00217/99A
Other languages
German (de)
English (en)
Inventor
Isao Asano
Satoshi Nakajima
Original Assignee
Hochiki Co
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 Hochiki Co filed Critical Hochiki Co
Publication of CH694649A5 publication Critical patent/CH694649A5/de

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

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)
CH00217/99A 1998-02-05 1999-02-05 Rauchsensor des Lichtstörungstyps. CH694649A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10024358A JPH11224387A (ja) 1998-02-05 1998-02-05 減光式煙感知器

Publications (1)

Publication Number Publication Date
CH694649A5 true CH694649A5 (de) 2005-05-13

Family

ID=12135984

Family Applications (1)

Application Number Title Priority Date Filing Date
CH00217/99A CH694649A5 (de) 1998-02-05 1999-02-05 Rauchsensor des Lichtstörungstyps.

Country Status (6)

Country Link
US (1) US6094143A (https=)
JP (1) JPH11224387A (https=)
AU (1) AU750314B2 (https=)
CH (1) CH694649A5 (https=)
DE (1) DE19904535A1 (https=)
GB (1) GB2334096B (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4559664B2 (ja) * 2001-06-29 2010-10-13 ニッタン株式会社 光電分離型煙感知器および防災システム
DE60210738T2 (de) * 2002-01-16 2007-04-12 Leeds Electronic Eng. Ltd. Diebstahlschutzalarm mit reduzierter Verdrahtung
US8021469B2 (en) * 2005-07-14 2011-09-20 Access Business Group International Llc Control methods for an air treatment system
DE202007013986U1 (de) * 2007-10-05 2008-02-07 Cedes Ag Vorrichtung zur Steuerung eines angetriebenen Bewegungselements, insbesondere einer Tür oder eines Tores
CN106155861A (zh) * 2015-04-22 2016-11-23 鸿富锦精密工业(武汉)有限公司 电子设备报警电路
KR102508926B1 (ko) * 2022-06-09 2023-03-14 (주)전원테크 광전식 화재감지기의 수명을 관리할 수 있는 화재감시 시스템

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074721B (en) * 1980-04-23 1983-09-07 Furnace Construction Co Ltd Smoke sensor apparatus
GB2095821B (en) * 1981-03-17 1985-08-21 Malinowski William J Self-calibrating smoke detector and method
JPS60144458U (ja) * 1984-03-05 1985-09-25 ホーチキ株式会社 火災検出装置
JPS61247918A (ja) * 1985-04-26 1986-11-05 Hochiki Corp アナログセンサの出力補正装置
GB9212060D0 (en) * 1992-06-04 1992-07-22 Appleby David Obscuration sensor
JP3231886B2 (ja) * 1993-03-31 2001-11-26 能美防災株式会社 光電式火災感知器
EP0629983A1 (en) * 1993-06-02 1994-12-21 David Appleby Obscuration type smoke detector
US5546074A (en) * 1993-08-19 1996-08-13 Sentrol, Inc. Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
FR2723233B1 (fr) * 1994-07-29 1996-10-04 Lewiner Jacques Perfectionnements aux detecteurs optiques de fumees
GB2314618B (en) * 1996-06-26 1999-12-29 David Appleby Smoke detector using light scatter and extinction
US5705988A (en) * 1996-07-08 1998-01-06 Detection Systems, Inc. Photoelectric smoke detector with count based A/D and D/A converter
US5831537A (en) * 1997-10-27 1998-11-03 Slc Technologies, Inc. Electrical current saving combined smoke and fire detector

Also Published As

Publication number Publication date
AU750314B2 (en) 2002-07-18
US6094143A (en) 2000-07-25
AU1542899A (en) 1999-08-26
GB2334096B (en) 2002-05-29
GB2334096A (en) 1999-08-11
JPH11224387A (ja) 1999-08-17
DE19904535A1 (de) 1999-08-12

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Legal Events

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PL Patent ceased