JPH0568000B2 - - Google Patents
Info
- Publication number
- JPH0568000B2 JPH0568000B2 JP58503091A JP50309183A JPH0568000B2 JP H0568000 B2 JPH0568000 B2 JP H0568000B2 JP 58503091 A JP58503091 A JP 58503091A JP 50309183 A JP50309183 A JP 50309183A JP H0568000 B2 JPH0568000 B2 JP H0568000B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- signal
- smoke
- circuit
- smoke detector
- 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
Links
- 239000000779 smoke Substances 0.000 description 82
- 238000011156 evaluation Methods 0.000 description 13
- 239000002245 particle Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 230000005855 radiation Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 206010069201 Smoke sensitivity Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
-
- 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
-
- 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
- G08B29/22—Provisions facilitating manual calibration, e.g. input or output provisions for testing; Holding of intermittent values to permit measurement
-
- 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)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH119/83 | 1983-01-11 | ||
| CH119/83A CH660244A5 (de) | 1983-01-11 | 1983-01-11 | Photoelektrischer rauchdetektor und dessen verwendung. |
| PCT/CH1983/000112 WO1984002790A1 (en) | 1983-01-11 | 1983-10-05 | Photoelectric smoke detector and utilization thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60500467A JPS60500467A (ja) | 1985-04-04 |
| JPH0568000B2 true JPH0568000B2 (en]) | 1993-09-28 |
Family
ID=4179681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP83503091A Granted JPS60500467A (ja) | 1983-01-11 | 1983-10-05 | 光電式煙検知器 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4647786A (en]) |
| EP (1) | EP0130992B1 (en]) |
| JP (1) | JPS60500467A (en]) |
| CH (1) | CH660244A5 (en]) |
| DE (1) | DE3370888D1 (en]) |
| NO (1) | NO159424C (en]) |
| WO (1) | WO1984002790A1 (en]) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839527A (en) * | 1986-10-28 | 1989-06-13 | Alan Leitch | Optical-fibre smoke detection/analysis system |
| GB9014015D0 (en) * | 1990-06-23 | 1990-08-15 | Dennis Peter N J | Improvements in or relating to smoke detectors |
| US5546074A (en) * | 1993-08-19 | 1996-08-13 | Sentrol, Inc. | Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
| US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
| JP3330438B2 (ja) * | 1993-12-16 | 2002-09-30 | 能美防災株式会社 | 煙感知器およびその調整装置 |
| US5629458A (en) * | 1996-07-26 | 1997-05-13 | Alliedsignal Inc. | Process for the preparation of 2 2 2 trifluoroethanol |
| GB2367358B (en) * | 1997-06-30 | 2002-05-15 | Hochiki Co | Smoke detecting apparatus |
| DE19741853A1 (de) * | 1997-09-23 | 1999-03-25 | Bosch Gmbh Robert | Rauchmelder |
| US7324004B2 (en) * | 2003-10-29 | 2008-01-29 | Honeywell International, Inc. | Cargo smoke detector and related method for reducing false detects |
| DK2093734T3 (da) * | 2008-02-19 | 2011-10-10 | Siemens Ag | Røgalarm med tidslig fortolkning af et tilbagekoblingssignal, testfremgangsmåde til funktionsdygtighed af en røgalarm |
| DE102013213721B4 (de) * | 2013-03-07 | 2015-10-22 | Siemens Schweiz Ag | Brandmeldeanlage für den Einsatz in einem Nuklearbereich oder EX-Bereich |
| WO2018089474A1 (en) * | 2016-11-11 | 2018-05-17 | Carrier Corporation | High sensitivity fiber optic based detection |
| CN115223323B (zh) * | 2022-07-18 | 2023-05-23 | 深圳市千宝通通科技有限公司 | 光电式烟感传感器、烟感传感器自检方法及烟感报警器 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU493347B1 (en) * | 1974-04-23 | 1976-10-21 | Cabili Electronics Pty. Ltd | False alarm inhibitor |
| US4206454A (en) * | 1978-05-08 | 1980-06-03 | Chloride Incorporated | Two channel optical flame detector |
| JPS609914Y2 (ja) * | 1978-11-14 | 1985-04-05 | 能美防災工業株式会社 | 光電式煙感知器 |
| CH638331A5 (de) * | 1979-02-22 | 1983-09-15 | Cerberus Ag | Rauchdetektor. |
-
1983
- 1983-01-11 CH CH119/83A patent/CH660244A5/de not_active IP Right Cessation
- 1983-10-05 EP EP83902981A patent/EP0130992B1/de not_active Expired
- 1983-10-05 JP JP83503091A patent/JPS60500467A/ja active Granted
- 1983-10-05 DE DE8383902981T patent/DE3370888D1/de not_active Expired
- 1983-10-05 WO PCT/CH1983/000112 patent/WO1984002790A1/de active IP Right Grant
- 1983-10-10 US US06/606,827 patent/US4647786A/en not_active Expired - Fee Related
-
1984
- 1984-05-22 NO NO84842034A patent/NO159424C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0130992B1 (de) | 1987-04-08 |
| DE3370888D1 (en) | 1987-05-14 |
| NO842034L (no) | 1984-07-19 |
| NO159424B (no) | 1988-09-12 |
| EP0130992A1 (de) | 1985-01-16 |
| CH660244A5 (de) | 1987-03-31 |
| NO159424C (no) | 1988-12-21 |
| WO1984002790A1 (en) | 1984-07-19 |
| JPS60500467A (ja) | 1985-04-04 |
| US4647786A (en) | 1987-03-03 |
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