GB2334096B - Light obstruction type smoke sensor - Google Patents

Light obstruction type smoke sensor

Info

Publication number
GB2334096B
GB2334096B GB9900810A GB9900810A GB2334096B GB 2334096 B GB2334096 B GB 2334096B GB 9900810 A GB9900810 A GB 9900810A GB 9900810 A GB9900810 A GB 9900810A GB 2334096 B GB2334096 B GB 2334096B
Authority
GB
United Kingdom
Prior art keywords
smoke sensor
type smoke
light obstruction
obstruction type
light
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
GB9900810A
Other languages
English (en)
Other versions
GB2334096A (en
Inventor
Satoshi Nakajima
Isao Asano
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.)
Hochiki Corp
Original Assignee
Hochiki Corp
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 Corp filed Critical Hochiki Corp
Publication of GB2334096A publication Critical patent/GB2334096A/en
Application granted granted Critical
Publication of GB2334096B publication Critical patent/GB2334096B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

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)
GB9900810A 1998-02-05 1999-01-14 Light obstruction type smoke sensor Expired - Lifetime GB2334096B (en)

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 (2)

Publication Number Publication Date
GB2334096A GB2334096A (en) 1999-08-11
GB2334096B true GB2334096B (en) 2002-05-29

Family

ID=12135984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9900810A Expired - Lifetime GB2334096B (en) 1998-02-05 1999-01-14 Light obstruction type smoke sensor

Country Status (6)

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

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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074721A (en) * 1980-04-23 1981-11-04 Furnace Construction Co Ltd Smoke sensor apparatus
GB2095821A (en) * 1981-03-17 1982-10-06 Malinowski William J Self-calibrating smoke detector and method
GB2267963A (en) * 1992-06-04 1993-12-22 David Appleby Obscuration sensor
EP0629983A1 (en) * 1993-06-02 1994-12-21 David Appleby Obscuration type smoke detector
GB2314618A (en) * 1996-06-26 1998-01-07 David Appleby Smoke detector using light scatter and extinction

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3231886B2 (ja) * 1993-03-31 2001-11-26 能美防災株式会社 光電式火災感知器
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074721A (en) * 1980-04-23 1981-11-04 Furnace Construction Co Ltd Smoke sensor apparatus
GB2095821A (en) * 1981-03-17 1982-10-06 Malinowski William J Self-calibrating smoke detector and method
GB2267963A (en) * 1992-06-04 1993-12-22 David Appleby Obscuration sensor
EP0629983A1 (en) * 1993-06-02 1994-12-21 David Appleby Obscuration type smoke detector
GB2314618A (en) * 1996-06-26 1998-01-07 David Appleby Smoke detector using light scatter and extinction

Also Published As

Publication number Publication date
GB2334096A (en) 1999-08-11
DE19904535A1 (de) 1999-08-12
CH694649A5 (de) 2005-05-13
US6094143A (en) 2000-07-25
AU1542899A (en) 1999-08-26
AU750314B2 (en) 2002-07-18
JPH11224387A (ja) 1999-08-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20190113