EP0818766B1 - Verfahren zur automatischen Detektierung von Bränden, insbesondere von Waldbränden - Google Patents
Verfahren zur automatischen Detektierung von Bränden, insbesondere von Waldbränden Download PDFInfo
- Publication number
- EP0818766B1 EP0818766B1 EP19970420115 EP97420115A EP0818766B1 EP 0818766 B1 EP0818766 B1 EP 0818766B1 EP 19970420115 EP19970420115 EP 19970420115 EP 97420115 A EP97420115 A EP 97420115A EP 0818766 B1 EP0818766 B1 EP 0818766B1
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- EP
- European Patent Office
- Prior art keywords
- detection
- smoke
- pixels
- temporal
- images
- 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
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Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/005—Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
-
- 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
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
Claims (7)
- Verfahren zur automatischen Detektierung von Bränden, insbesondere von Waldbränden, das auf der Erkennung von Rauch beruht, ausgehend von mindestens einer Videokamera (4), welches darin besteht, eine Verarbeitung von Stand-Bildern vorzunehmen, die durch eine oder mehrere Kameras (4) im sichtbaren Spektrum erhalten werden, um einen eventuellen Rauchherd zu detektieren und zu lokalisieren, dadurch gekennzeichnet, dass die Detektierung eines derartigen Herdes umfasst:in einem ersten Schritt in den Bildern mindestens eine kleine Pixelzone zu suchen, die zeitliche Änderungen der Graupegel (G), insbesondere bei niedriger Frequenz, zeigt,dann die oder jede in dieser Weise erkannte Zone durch Messen des Grades der zeitlichen Dekorrelation der Pixel zu analysieren, die zu eben dieser Zone gehören.
- Verfahren zur Detektierung nach Anspruch 1, dadurch gekennzeichnet, dass für die Suche nach der oder jeder kleinen vorgenannten Zone Pixel ausgewählt werden, die, was die zeitlichen Änderungen ihrer Graupegel (G) betrifft, Frequenzen zwischen 0,3 und 0,1 Hz aufweisen.
- Verfahren zur Detektierung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass es den Suchvorgang in den Bildern nach einer kleinen Pixelzone, die besonders chaotische Änderungen von Graupegeln (G) zeigt, durch Mittel für die Messung des räumlichzeitlichen Chaos-Index der verschiedenen Pixelzonen in dem Bild umfasst.
- Verfahren zur Detektierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es auch noch ein Messgerät für das räumlich-zeitliche Rauschen umfasst.
- Verfahren zur Detektierung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass es durch mindestens eine örtliche Detektionsvorrichtung (2) in Gang gesetzt wird, die an einer zu überwachenden Strecke (1) oder an deren Peripherie eingesetzt ist und mindestens eine feststehende Videokamera (4) umfasst, die mit einer autonomen Verarbeitungseinheit (5) verbunden ist, die das Bild der Kamera (4) analysiert.
- Verfahren zur Detektierung nach Anspruch 5, dadurch gekennzeichnet, dass eine oder mehrere Detektionsvorrichtungen (2) mit einer zentralen Einheit (10) verbunden sind, die sich in einer gewissen Entfernung befindet und als Überwachungs- und Leitstelle dient und die insbesondere mit Darstellungsmitteln (12, 13) für Bedienpersonal ausgestattet ist.
- Verfahren zur Detektierung nach Anspruch 6, dadurch gekennzeichnet, dass die Überwachungs- und Leitstelle (10) vorgesehen ist, um eine Sequenz von Bildern von dem Landschaftsteil, der sich im Umkreis eines detektierten Herdes befindet, zu zeigen, wobei diese Sequenz mit starkem Zeitraffertempo (18), verglichen mit ihrer tatsächlichen Aufnahmezeit (17), dargestellt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9609030 | 1996-07-12 | ||
| FR9609030A FR2750870B1 (fr) | 1996-07-12 | 1996-07-12 | Procede de detection automatique de feux, notamment de feux de forets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0818766A1 EP0818766A1 (de) | 1998-01-14 |
| EP0818766B1 true EP0818766B1 (de) | 2002-03-27 |
Family
ID=9494204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19970420115 Expired - Lifetime EP0818766B1 (de) | 1996-07-12 | 1997-07-11 | Verfahren zur automatischen Detektierung von Bränden, insbesondere von Waldbränden |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0818766B1 (de) |
| DE (1) | DE69711283D1 (de) |
| FR (1) | FR2750870B1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708353A (zh) * | 2010-12-27 | 2012-10-03 | 财团法人工业技术研究院 | 火焰判断方法、火焰判断系统与火焰判断装置 |
| US11080990B2 (en) | 2019-08-05 | 2021-08-03 | Factory Mutual Insurance Company | Portable 360-degree video-based fire and smoke detector and wireless alerting system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2775534B1 (fr) * | 1998-02-27 | 2000-09-15 | D Aviat Latecoere Soc Ind | Dispositif de surveillance d'une enceinte, notamment de la soute d'un avion |
| US6529132B2 (en) | 1998-02-27 | 2003-03-04 | Societe Industrielle D'avation Latecoere | Device for monitoring an enclosure, in particular the hold of an aircraft |
| US6184792B1 (en) * | 2000-04-19 | 2001-02-06 | George Privalov | Early fire detection method and apparatus |
| ES2243699T3 (es) | 2001-02-26 | 2005-12-01 | Fastcom Technology S.A. | Procedimiento y dispositivo de deteccion de fuegos basados en el analisis de imagenes. |
| PT102617B (pt) | 2001-05-30 | 2004-01-30 | Inst Superior Tecnico | Sistema lidar controlado por computador para localizacao de fumo, aplicavel, em particular, a deteccao precoce de incendios florestais |
| GB2388895B (en) | 2002-05-20 | 2004-07-21 | Infrared Integrated Syst Ltd | Improved detection of turbulence in fluids |
| GR1004455B (el) * | 2003-02-21 | 2004-02-17 | Δουκασαχριστοσα | Ανιχνευτησαπηγωναθερμοτητος |
| DE102005018626A1 (de) * | 2005-04-21 | 2006-11-02 | Entwicklungsgesellschaft für Systeme und Technologien der Telekommunikation mbH | Verfahren und Vorrichtung zur nächtlichen Erkennung von Bränden |
| CN109544842A (zh) * | 2018-12-29 | 2019-03-29 | 许昌学院 | 一种森林防火地理信息系统 |
| CN111539239B (zh) * | 2019-01-22 | 2023-09-22 | 杭州海康微影传感科技有限公司 | 明火检测的方法、装置及存储介质 |
| CN115376268B (zh) * | 2022-10-21 | 2023-02-28 | 山东太平天下智慧科技有限公司 | 一种基于图像识别的监控报警消防联动系统 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2070710B1 (es) * | 1993-02-10 | 1997-05-01 | Nacional Bazan De Construccion | Sistema de vigilancia y deteccion de focos de calor en areas abiertas . |
-
1996
- 1996-07-12 FR FR9609030A patent/FR2750870B1/fr not_active Expired - Fee Related
-
1997
- 1997-07-11 EP EP19970420115 patent/EP0818766B1/de not_active Expired - Lifetime
- 1997-07-11 DE DE69711283T patent/DE69711283D1/de not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708353A (zh) * | 2010-12-27 | 2012-10-03 | 财团法人工业技术研究院 | 火焰判断方法、火焰判断系统与火焰判断装置 |
| CN102708353B (zh) * | 2010-12-27 | 2015-01-07 | 财团法人工业技术研究院 | 火焰判断方法、火焰判断系统与火焰判断装置 |
| US11080990B2 (en) | 2019-08-05 | 2021-08-03 | Factory Mutual Insurance Company | Portable 360-degree video-based fire and smoke detector and wireless alerting system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69711283D1 (de) | 2002-05-02 |
| FR2750870A1 (fr) | 1998-01-16 |
| FR2750870B1 (fr) | 1999-06-04 |
| EP0818766A1 (de) | 1998-01-14 |
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