EP1777670A3 - Smoke detector - Google Patents
Smoke detector Download PDFInfo
- Publication number
- EP1777670A3 EP1777670A3 EP06020998A EP06020998A EP1777670A3 EP 1777670 A3 EP1777670 A3 EP 1777670A3 EP 06020998 A EP06020998 A EP 06020998A EP 06020998 A EP06020998 A EP 06020998A EP 1777670 A3 EP1777670 A3 EP 1777670A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- clock frequency
- smoke detector
- recognises
- reflector
- alarm
- 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
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
- G08B29/02—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
- 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
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- 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)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005050451A DE102005050451A1 (en) | 2005-10-19 | 2005-10-19 | smoke detector |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1777670A2 EP1777670A2 (en) | 2007-04-25 |
EP1777670A3 true EP1777670A3 (en) | 2007-07-25 |
EP1777670B1 EP1777670B1 (en) | 2009-01-21 |
Family
ID=37680613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06020998A Not-in-force EP1777670B1 (en) | 2005-10-19 | 2006-10-06 | Smoke detector |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1777670B1 (en) |
AT (1) | ATE421742T1 (en) |
DE (2) | DE102005050451A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3889579A1 (en) * | 2020-03-30 | 2021-10-06 | Carrier Corporation | Cleaning system for a smoke detector |
US11900791B2 (en) | 2022-04-26 | 2024-02-13 | Honeywell International Inc. | Self-testing fire sensing device for confirming a fire |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261024B (en) * | 1961-10-13 | 1968-02-08 | Licentia Gmbh | Photoelectric barrier |
US3641549A (en) * | 1970-06-25 | 1972-02-08 | Sanders Associates Inc | Electro-optical perimeter intrusion alarm |
US3885162A (en) * | 1973-10-31 | 1975-05-20 | Contraves Goerz Corp | Optical measuring apparatus |
EP0631263A1 (en) * | 1993-06-23 | 1994-12-28 | HEKATRON GmbH | Circuit arrangement of an optical detector for environmental monitoring and indication of a disturbing medium |
DE4432114C1 (en) * | 1994-09-09 | 1995-06-08 | Hella Kg Hueck & Co | Stray light suppression circuit for light barrier arrangement |
JPH07239958A (en) * | 1994-02-28 | 1995-09-12 | Ito Seisakusho:Kk | Passenger confirming device |
JP2001034863A (en) * | 1999-07-22 | 2001-02-09 | Sumitomo Densetsu Corp | Air blow-type fire alarm system |
US20040063154A1 (en) * | 2002-08-23 | 2004-04-01 | Booth David K. | Rapidly responding, false detection immune alarm signal producing smoke detector |
DE10346741B3 (en) * | 2003-10-08 | 2005-03-24 | Mechaless Systems Gmbh | Determining and/or evaluating differential optical signal involves regulating intensity radiated into measurement arrangement with control parameter generated from incoming light intensity at receiver measured relative to phase position |
-
2005
- 2005-10-19 DE DE102005050451A patent/DE102005050451A1/en not_active Withdrawn
-
2006
- 2006-10-06 DE DE502006002695T patent/DE502006002695D1/en active Active
- 2006-10-06 EP EP06020998A patent/EP1777670B1/en not_active Not-in-force
- 2006-10-06 AT AT06020998T patent/ATE421742T1/en not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261024B (en) * | 1961-10-13 | 1968-02-08 | Licentia Gmbh | Photoelectric barrier |
US3641549A (en) * | 1970-06-25 | 1972-02-08 | Sanders Associates Inc | Electro-optical perimeter intrusion alarm |
US3885162A (en) * | 1973-10-31 | 1975-05-20 | Contraves Goerz Corp | Optical measuring apparatus |
EP0631263A1 (en) * | 1993-06-23 | 1994-12-28 | HEKATRON GmbH | Circuit arrangement of an optical detector for environmental monitoring and indication of a disturbing medium |
JPH07239958A (en) * | 1994-02-28 | 1995-09-12 | Ito Seisakusho:Kk | Passenger confirming device |
DE4432114C1 (en) * | 1994-09-09 | 1995-06-08 | Hella Kg Hueck & Co | Stray light suppression circuit for light barrier arrangement |
JP2001034863A (en) * | 1999-07-22 | 2001-02-09 | Sumitomo Densetsu Corp | Air blow-type fire alarm system |
US20040063154A1 (en) * | 2002-08-23 | 2004-04-01 | Booth David K. | Rapidly responding, false detection immune alarm signal producing smoke detector |
DE10346741B3 (en) * | 2003-10-08 | 2005-03-24 | Mechaless Systems Gmbh | Determining and/or evaluating differential optical signal involves regulating intensity radiated into measurement arrangement with control parameter generated from incoming light intensity at receiver measured relative to phase position |
Also Published As
Publication number | Publication date |
---|---|
EP1777670A2 (en) | 2007-04-25 |
EP1777670B1 (en) | 2009-01-21 |
DE102005050451A1 (en) | 2007-05-03 |
DE502006002695D1 (en) | 2009-03-12 |
ATE421742T1 (en) | 2009-02-15 |
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