CA2170519A1 - Methode et dispositif pour empecher les reponses erronees dans les detecteurs optiques - Google Patents
Methode et dispositif pour empecher les reponses erronees dans les detecteurs optiquesInfo
- Publication number
- CA2170519A1 CA2170519A1 CA 2170519 CA2170519A CA2170519A1 CA 2170519 A1 CA2170519 A1 CA 2170519A1 CA 2170519 CA2170519 CA 2170519 CA 2170519 A CA2170519 A CA 2170519A CA 2170519 A1 CA2170519 A1 CA 2170519A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- source
- optical radiation
- optical
- chaotic
- 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.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000004044 response Effects 0.000 title claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 46
- 230000000739 chaotic effect Effects 0.000 claims abstract description 27
- 230000000737 periodic effect Effects 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 3
- 238000011896 sensitive detection Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Fire-Detection Mechanisms (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Procédé (et appareil associé) de prévention des réponses erronées de systèmes optiques de détection, sensibles à des variations ou fluctuations du rayonnement optique d'une source, dont les étapes sont: a) réception du rayonnement émanant de la source; b) sélection d'une plage prédéterminée de longueurs d'ondes; c) détection des variations du flux de rayonnement dont on tire un chronogramme du signal (trace du signal) à la sortie du capteur; d) analyse du signal détecté pour y déceler un comportement chaotique (p. ex. apériodique) en établissant la dimension fractale associée au signal et en utilisant ladite dimension fractale des données chronologiques du rayonnement de la source de rayonnement optique pour distinguer cette dernière des sources périodiques ou intermittentes de rayonnement optique fluctuant; et e) ne fournir de réponse à la sortie du détecteur optique qu'en cas de comportement chaotique de la source.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93306865.2 | 1993-08-31 | ||
| EP93306865 | 1993-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2170519A1 true CA2170519A1 (fr) | 1995-03-09 |
Family
ID=8214523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2170519 Abandoned CA2170519A1 (fr) | 1993-08-31 | 1994-08-30 | Methode et dispositif pour empecher les reponses erronees dans les detecteurs optiques |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0715744B1 (fr) |
| AU (1) | AU7537594A (fr) |
| CA (1) | CA2170519A1 (fr) |
| DE (1) | DE69407190T2 (fr) |
| DK (1) | DK0715744T3 (fr) |
| NO (1) | NO960783L (fr) |
| SG (1) | SG97742A1 (fr) |
| WO (1) | WO1995006927A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001043067A2 (fr) * | 1999-12-10 | 2001-06-14 | Durand Technology Limited | Ameliorations relatives a des applications des techniques fractales et/ou chaotiques |
| RU2296370C2 (ru) * | 2005-05-27 | 2007-03-27 | Николай Иванович Горбунов | Инфракрасный многодиапазонный детектор пламени и взрыва |
| RU2332723C1 (ru) * | 2006-12-14 | 2008-08-27 | Казанский государственный технический университет им. А.Н. Туполева | Модуляционный датчик горения |
| DE102009048739B3 (de) * | 2009-07-14 | 2012-03-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren und Vorrichtung zur automatischen Waldbranderkennung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4665390A (en) * | 1985-08-22 | 1987-05-12 | Hughes Aircraft Company | Fire sensor statistical discriminator |
| US4866420A (en) * | 1988-04-26 | 1989-09-12 | Systron Donner Corp. | Method of detecting a fire of open uncontrolled flames |
| US5051590A (en) * | 1989-12-06 | 1991-09-24 | Santa Barbara Research Center | Fiber optic flame detection and temperature measurement system having one or more in-line temperature dependent optical filters |
| US5201321A (en) * | 1991-02-11 | 1993-04-13 | Fulton Keith W | Method and apparatus for diagnosing vulnerability to lethal cardiac arrhythmias |
| US5185687A (en) * | 1991-03-28 | 1993-02-09 | Eaton Corporation | Chaos sensing arc detection |
| JPH0535768A (ja) * | 1991-07-26 | 1993-02-12 | Hitachi Ltd | フラクタル次元を応用した情報処理装置 |
-
1994
- 1994-08-30 CA CA 2170519 patent/CA2170519A1/fr not_active Abandoned
- 1994-08-30 DE DE69407190T patent/DE69407190T2/de not_active Expired - Fee Related
- 1994-08-30 WO PCT/EP1994/002888 patent/WO1995006927A1/fr not_active Ceased
- 1994-08-30 SG SG9606075A patent/SG97742A1/en unknown
- 1994-08-30 EP EP94925486A patent/EP0715744B1/fr not_active Expired - Lifetime
- 1994-08-30 AU AU75375/94A patent/AU7537594A/en not_active Abandoned
- 1994-08-30 DK DK94925486T patent/DK0715744T3/da active
-
1996
- 1996-02-27 NO NO960783A patent/NO960783L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69407190D1 (de) | 1998-01-15 |
| WO1995006927A1 (fr) | 1995-03-09 |
| NO960783D0 (no) | 1996-02-27 |
| EP0715744A1 (fr) | 1996-06-12 |
| AU7537594A (en) | 1995-03-22 |
| EP0715744B1 (fr) | 1997-12-03 |
| DE69407190T2 (de) | 1998-05-20 |
| SG97742A1 (en) | 2003-08-20 |
| NO960783L (no) | 1996-03-12 |
| DK0715744T3 (da) | 1998-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |