WO1991009390A1 - Systeme de lutte contre les incendies essentiellement conçu pour la sauvegarde des forets - Google Patents

Systeme de lutte contre les incendies essentiellement conçu pour la sauvegarde des forets Download PDF

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Publication number
WO1991009390A1
WO1991009390A1 PCT/EP1990/002244 EP9002244W WO9109390A1 WO 1991009390 A1 WO1991009390 A1 WO 1991009390A1 EP 9002244 W EP9002244 W EP 9002244W WO 9109390 A1 WO9109390 A1 WO 9109390A1
Authority
WO
WIPO (PCT)
Prior art keywords
safeguard
fire fighting
fighting system
peripheral
mainly conceived
Prior art date
Application number
PCT/EP1990/002244
Other languages
English (en)
Inventor
Giulio Brogi
Luca Pietranera
Francesco Frau
Original Assignee
Selenia Industrie Elettroniche Associate S.P.A.
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 Selenia Industrie Elettroniche Associate S.P.A. filed Critical Selenia Industrie Elettroniche Associate S.P.A.
Priority to DE69028296T priority Critical patent/DE69028296T2/de
Priority to BR909007134A priority patent/BR9007134A/pt
Priority to EP91901284A priority patent/EP0458938B1/fr
Priority to CA002047190A priority patent/CA2047190C/fr
Publication of WO1991009390A1 publication Critical patent/WO1991009390A1/fr
Priority to GR960402962T priority patent/GR3021588T3/el

Links

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

Definitions

  • Fire fighting system mainly conceived to safeguard forests
  • the invention presented regards an integrated system which is particularly well suited for the safeguard of wooded areas against fires.
  • the scope of this invention is therefore a system which offers automatic monitoring of fires.
  • the utilisation of infrared sensors and of all the devices which form the system, are a noteworthy step ahead in the safeguard of wooded areas, till present trusted to towers and look out personnel. But of course the most frequent inconvenience has always been the late arrival of fire fighters due to the fact that there has never been an instantaneous detection of fire and alarm transmission.
  • the invention consists of two sub assemblies: the remote detector and the local control centre. More than one detector can be connected to the local control centre, in quantities from 5 to 10. For illustrative non limiting purposes the invention will now be decribed with reference to the tables of drawings attached.
  • Figure 1 shows the block diagram of the entire system, where the arrows stand for the connections among the units of the system:
  • Peripheral detector (usually each system includes more than one detector); this block is expanded in fiure 2;
  • Figure 2 is a schematic representation of the peripheral detector, indicated as block A in figure 1. Here we can see:
  • the remote detector consists of:
  • An infrared sensor 10 which has a spectral sensitivity such as to provide an optimum detection of hot sources (300-700 degrees C) against an ambient temperature background (0-40 degrees C).
  • a spectral sensitivity such as to provide an optimum detection of hot sources (300-700 degrees C) against an ambient temperature background (0-40 degrees C).
  • a group of weather sensors 14 which provide data on temperature, relative humidity, pressure, wind speed and direction, solar radiation and rain rate.
  • a TV camera 11 for possible visual monitoring of the surveilled area.
  • a motor driven platform 12 which confers an azimuth scan to the infrared sensor and to the TV camera over 360 degrees.
  • a processor 13 which acquires data from the infrared sensor and provides for extraction of possible alarms, acquires weather sensor data, manages data exchange with the local control centre, from which it receives all commands.
  • the infrared sensor data processing is based upon the following procedure: The infrared sensor measures the radiation flow coming from a small angular region, such as 1 degree x 1 degree; the vertical coverage of the sensor is 15 to 20 degrees and is obtained by means of a linear array of sensitive elements. All data coming from a detector is taken into account: in our case taken as an example, there are 360 datum points, one per azimuth degree covered. The number of data may be less if the area to be monitored is only part of a whole
  • the processor calculates the value of the derivative of the signal. This provides for the elimination of the signal long term changing effects, on an angle scale of 10 degrees for instance.
  • Such variations are typically due to the variation of the angle between the line of sight of the sensor and the position of the sun . On the contrary, point variations are left unchanged, when less or equal to 1 degree, as these are typical signals of fires developing.
  • the processor then extracts the mean square value of the fluctuations of the signal subject to derivation for each group of data corresponding to a vertical position which we shall call line .
  • Such value is proportional to the fluctuations of the background on the line itself and, multiplied by a suitable constant value, it is taken as a threshold for the detection of possible signals.
  • the processor Based upon the threshold determined above, the processor identifies any signal present above such threshold on a line basis. The azimuth angle of the signal is compared with that of signals detected in the previous scans. This is necessary to confer a better reliability to the alarm through a number of consecutive confirmed appearances.
  • a communications system 15 such as a radio link remotely controlled by the processor, provides for digital transmission of detected alarms detected by the IR sensor, of weather data and of the TV image to the local control centre.
  • the local control centre consists of the following:
  • One or more processors with the following functions:
  • A Control of the peripheral stations, exchange of commands and data.
  • E Recording of data on hard disc or on peripheric units 8 such as tape recorders or optical discs.
  • the function provided by the program may be performed during operation of the fire fighting system (called in the following on line functions) or separately (off line).
  • the main functions performed by the program are the following:
  • Digitising of topographic and thematic maps are the substrate absolutely necessary for the visualization of alarms on the monitor display of the processor and for the development of the forecast algorithms of the fire development.
  • Peripheral management This function preferably used off line transports onto paper the graphics displayed on the monitor; this is the documentation required by the fire fighting squads.
  • Intervisibility management which is performed between any point of the map and one of the peripheral detection stations. This function is used mostly during setting up of the system and it guides in the selection of the best sighting of the peripheral detectors .
  • Forecast of the fire development is based upon the speed and direction of the wind, on ground gradient and type of fuel, resulting in a propagation speed of the fire as a function of absolute azimuth against north.
  • the algorithm adopted utilises the following parameters:
  • Vfc Variation of the fire propagation speed depending upon the type and humidity of the burning vegetation. Data on the distribution of vegetation is each time read from the data bank.
  • - Ci increment constant due to the greater oxygenation due to wind. It is independent of angle with wind direction, but depends on its intensity .
  • the program provides a graphic output overlayed on the digitised topographic map showing the successive positions of the fire front edge at pre established time intervals.
  • the data which is detected by the infrared sensor 10 are acquired and processed by local processor 13.
  • One of the tasks of the processor is also the management of rotating platform 12 onto which the IR sensor and the TV camera 11 are fitted.
  • the processor transmits the position of any possible fire together with weather data by means of the communications system 15.
  • the TV camera transmits images directly to the local control centre by means of the communications system.
  • the data coming from the peripheric detection station 1 is sorted by the communications subsystem 2.
  • the TV video is visualized on monitor 6 and can also be recorded 7.
  • the infrared sensor data regarding the position of any alarm is fed to processor 3 which places them on the topographic maps.
  • the modelling program 4 develops a forecast of the fire evolution in the hours following detections, relying upon historic, weather, vegetation and other data contained in data bank 5.
  • the weather data acquired in the last scan are inserted in the data bank.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

Le système de lutte contre les incendies décrit, qui est essentiellement conçu pour la sauvegarde de régions boisées, se compose d'un certain nombre de détecteurs périphériques (1) composés chacun d'un capteur à infrarouges (10), d'une caméra TV (11), d'une plate-forme rotative (12), d'un processeur local (13), d'un groupe de capteurs météorologiques (14) et d'un sous-système de transmission (15). Les capteurs périphériques sont reliés à un centre de commande local, lequel comprend: un détecteur périphérique (généralement plus d'un détecteur par système) (1), un sous-système de transmission (2), un processeur central (3), une modélisation par logiciel (4) pour les prévisions du développement de l'incendie surveillé, une base de données historiques (5), un moniteur TV (6), un enregistreur vidéo (7), une unité de mémoire (disque dur, unité de bande) (8), ainsi qu'une imprimante (9).
PCT/EP1990/002244 1989-12-20 1990-12-19 Systeme de lutte contre les incendies essentiellement conçu pour la sauvegarde des forets WO1991009390A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69028296T DE69028296T2 (de) 1989-12-20 1990-12-19 Feuerbekämpfungssystem geeignet für Waldüberwachung
BR909007134A BR9007134A (pt) 1989-12-20 1990-12-19 Sistema de combate a incendio principalmente concebido para salvaguardar florestas
EP91901284A EP0458938B1 (fr) 1989-12-20 1990-12-19 Système de lutte contre les incendies essentiellement conçu pour la sauvegarde des forêts
CA002047190A CA2047190C (fr) 1989-12-20 1990-12-19 Systeme de lutte contre les incendies, en particulier de forets
GR960402962T GR3021588T3 (en) 1989-12-20 1996-11-07 Fire fighting system mainly conceived to safeguard forests

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT48686A/89 1989-12-20
IT04868689A IT1237262B (it) 1989-12-20 1989-12-20 Sistema antincendio prevalentemente concepito per la salvaguardia dei boschi.

Publications (1)

Publication Number Publication Date
WO1991009390A1 true WO1991009390A1 (fr) 1991-06-27

Family

ID=11268042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/002244 WO1991009390A1 (fr) 1989-12-20 1990-12-19 Systeme de lutte contre les incendies essentiellement conçu pour la sauvegarde des forets

Country Status (11)

Country Link
EP (1) EP0458938B1 (fr)
AT (1) ATE142039T1 (fr)
BR (1) BR9007134A (fr)
CA (1) CA2047190C (fr)
DE (1) DE69028296T2 (fr)
ES (1) ES2094807T3 (fr)
GR (1) GR3021588T3 (fr)
IT (1) IT1237262B (fr)
PT (1) PT96268B (fr)
TN (1) TNSN90156A1 (fr)
WO (1) WO1991009390A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269454A (en) * 1992-08-07 1994-02-09 Graviner Ltd Kidde Flame detection by imaging
EP0611242A1 (fr) * 1993-02-10 1994-08-17 Empresa Nacional Bazan De Construcciones Navales Militares S.A. Système pour la surveillance et la détection de sources de chaleur sur terrains ouverts
DE9417289U1 (de) * 1994-10-27 1995-01-26 Meinke Peter Prof Dr Ing Detektoreinrichtung, Detektorsystem und Immunosensor zum Erkennen von Bränden
WO1997028521A1 (fr) * 1996-02-02 1997-08-07 Alcatel Alsthom Compagnie Generale D'electricite Dispositif pour la production d'une alarme et pour la surveillance d'une zone
SG84488A1 (en) * 1992-10-09 2001-11-20 Mutuo Tanaka Remote monitoring unit
WO2004107289A1 (fr) * 2003-06-02 2004-12-09 Universidad Politecnica De Valencia Systeme de surveillance pour la detection precoce d'incendies
DE102007007492A1 (de) * 2007-02-15 2008-08-21 Airmatic Gesellschaft für Umwelt und Technik mbH Verfahren zur integrierten, simulationsbasierten Waldbrandbekämpfung
EP2720208A2 (fr) * 2011-06-09 2014-04-16 Guangzhou SAT Infrared Technology Co., Ltd. Système et procédé d'alerte précoce de feux de forêt basés sur une technologie d'imagerie thermique infrarouge
CN108096752A (zh) * 2017-12-19 2018-06-01 江苏盖亚建筑工程有限公司 一种消防***
GR20200100134A (el) * 2020-03-13 2021-10-13 Νικολαος Κωνσταντινου Ζερβος Συστημα εγκαιρου ανιχνευσης και ειδοποιησης πυρκαγιων
US11532156B2 (en) 2017-03-28 2022-12-20 Zhejiang Dahua Technology Co., Ltd. Methods and systems for fire detection
US11633636B2 (en) 2017-12-02 2023-04-25 Mighty Fire Breaker Llc Wireless neighborhood wildfire defense system network supporting proactive protection of life and property in a neighborhood through GPS-tracking and mapping of environmentally-clean anti-fire (AF) chemical liquid spray applied to the property before wild fires reach the neighborhood
US11826592B2 (en) 2018-01-09 2023-11-28 Mighty Fire Breaker Llc Process of forming strategic chemical-type wildfire breaks on ground surfaces to proactively prevent fire ignition and flame spread, and reduce the production of smoke in the presence of a wild fire
US11865390B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean water-based fire inhibiting biochemical compositions, and methods of and apparatus for applying the same to protect property against wildfire
US11865394B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean biodegradable water-based concentrates for producing fire inhibiting and fire extinguishing liquids for fighting class A and class B fires
US11911643B2 (en) 2021-02-04 2024-02-27 Mighty Fire Breaker Llc Environmentally-clean fire inhibiting and extinguishing compositions and products for sorbing flammable liquids while inhibiting ignition and extinguishing fire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106355811B (zh) * 2016-07-22 2019-05-14 河南城建学院 一种电气火灾监测***
CN111354152A (zh) * 2018-12-24 2020-06-30 北京华航无线电测量研究所 一种火焰检测与定位***
CN110251861B (zh) * 2019-06-19 2021-02-09 深圳市恒升森林消防装备有限公司 一种森林消防灭火***

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148949A1 (fr) * 1983-03-31 1985-07-24 Nohmi Bosai Kogyo Co., Ltd. Dispositif detecteur d'incendie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148949A1 (fr) * 1983-03-31 1985-07-24 Nohmi Bosai Kogyo Co., Ltd. Dispositif detecteur d'incendie

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Gretsi, 11th Colloque sur le Traitement du Signal et des Images, Nice, 1-5 June 1987, G. Jacovitti et al.: "A real time image processor for automatic bright spot detection", pages 587-590 *
Telcom Report, volume 6, part 2, April 1983, (Passau, DE), T. Tussing: "Pulsmeldetechnik setzt neue Massstàbe im Brandschutz", see figure 5; left-hand column, pages 9-19 *

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269454A (en) * 1992-08-07 1994-02-09 Graviner Ltd Kidde Flame detection by imaging
GB2269454B (en) * 1992-08-07 1996-06-05 Graviner Ltd Kidde Flame detection method and apparatus
SG84488A1 (en) * 1992-10-09 2001-11-20 Mutuo Tanaka Remote monitoring unit
EP0611242A1 (fr) * 1993-02-10 1994-08-17 Empresa Nacional Bazan De Construcciones Navales Militares S.A. Système pour la surveillance et la détection de sources de chaleur sur terrains ouverts
ES2070710A2 (es) * 1993-02-10 1995-06-01 Nacional Bazan De Construccion Sistema de vigilancia y deteccion de focos de calor en areas abiertas .
US5557260A (en) * 1993-02-10 1996-09-17 Empresa Nacional Bazan De Construcciones Naval Militares, S.A. System for the monitoring and detection of heat sources in open areas
DE9417289U1 (de) * 1994-10-27 1995-01-26 Meinke Peter Prof Dr Ing Detektoreinrichtung, Detektorsystem und Immunosensor zum Erkennen von Bränden
WO1997028521A1 (fr) * 1996-02-02 1997-08-07 Alcatel Alsthom Compagnie Generale D'electricite Dispositif pour la production d'une alarme et pour la surveillance d'une zone
WO2004107289A1 (fr) * 2003-06-02 2004-12-09 Universidad Politecnica De Valencia Systeme de surveillance pour la detection precoce d'incendies
ES2235605A1 (es) * 2003-06-02 2005-07-01 Universidad Politecnica De Valencia Sistema de vigilancia para la deteccion precoz de incendios.
DE102007007492A1 (de) * 2007-02-15 2008-08-21 Airmatic Gesellschaft für Umwelt und Technik mbH Verfahren zur integrierten, simulationsbasierten Waldbrandbekämpfung
EP2720208A2 (fr) * 2011-06-09 2014-04-16 Guangzhou SAT Infrared Technology Co., Ltd. Système et procédé d'alerte précoce de feux de forêt basés sur une technologie d'imagerie thermique infrarouge
US20140192184A1 (en) * 2011-06-09 2014-07-10 Guangzhou Sat Infrared Technology Co., Ltd. Forest fire early-warning system and method based on infrared thermal imaging technology
EP2720208A4 (fr) * 2011-06-09 2014-12-31 Guangzhou Sat Infrared Technology Co Ltd Système et procédé d'alerte précoce de feux de forêt basés sur une technologie d'imagerie thermique infrarouge
US9666050B2 (en) * 2011-06-09 2017-05-30 Guangzhou Sat Infrared Technology Co. Ltd. Forest fire early-warning system and method based on infrared thermal imaging technology
US11532156B2 (en) 2017-03-28 2022-12-20 Zhejiang Dahua Technology Co., Ltd. Methods and systems for fire detection
US11697040B2 (en) 2017-12-02 2023-07-11 Mighty Fire Breaker Llc Wild fire defense system network using a command center, spraying systems and mobile computing systems configured to proactively defend homes and neighborhoods against threat of wild fire by spraying environmentally-safe anti-fire chemical liquid on property surfaces before presence of wild fire
US11697039B2 (en) 2017-12-02 2023-07-11 Mighty Fire Breaker Llc Wireless communication network, GPS-tracked back-pack spraying systems and command center configured for proactively spraying environmentally-safe anti-fire chemical liquid on property surfaces to inhibit fire ignition and flame spread in the presence of wild fire
US11633636B2 (en) 2017-12-02 2023-04-25 Mighty Fire Breaker Llc Wireless neighborhood wildfire defense system network supporting proactive protection of life and property in a neighborhood through GPS-tracking and mapping of environmentally-clean anti-fire (AF) chemical liquid spray applied to the property before wild fires reach the neighborhood
US11638844B2 (en) 2017-12-02 2023-05-02 Mighty Fire Breaker Llc Method of proactively protecting property from wild fire by spraying environmentally-clean anti-fire chemical liquid on property surfaces prior to wild fire arrival using remote sensing and GPS-tracking and mapping enabled spraying
US11642555B2 (en) 2017-12-02 2023-05-09 Mighty Fire Breaker Llc Wireless wildfire defense system network for proactively defending homes and neighborhoods against wild fires by spraying environmentally-clean anti-fire chemical liquid on property and buildings and forming GPS-tracked and mapped chemical fire breaks about the property
US11654313B2 (en) 2017-12-02 2023-05-23 Mighty Fire Breaker Llc Wireless communication network, GPS-tracked ground-based spraying tanker vehicles and command center configured for proactively spraying environmentally-safe anti-fire chemical liquid on property surfaces to inhibit fire ignition and flame spread in the presence of wild fire
US11654314B2 (en) 2017-12-02 2023-05-23 Mighty Fire Breaker Llc Method of managing the proactive spraying of environment ally-clean anti-fire chemical liquid on GPS-specified property surfaces so as to inhibit fire ignition and flame spread in the presence of wild fire
US11697041B2 (en) 2017-12-02 2023-07-11 Mighty Fire Breaker Llc Method of proactively defending combustible property against fire ignition and flame spread in the presence of wild fire
US11794044B2 (en) 2017-12-02 2023-10-24 Mighty Fire Breaker Llc Method of proactively forming and maintaining GPS-tracked and mapped environmentally-clean chemical firebreaks and fire protection zones that inhibit fire ignition and flame spread in the presence of wild fire
US11730987B2 (en) 2017-12-02 2023-08-22 Mighty Fire Breaker Llc GPS tracking and mapping wildfire defense system network for proactively defending homes and neighborhoods against threat of wild fire by spraying environmentally-safe anti-fire chemical liquid on property surfaces to inhibit fire ignition and flame spread in the presence of wild fire
US11707639B2 (en) 2017-12-02 2023-07-25 Mighty Fire Breaker Llc Wireless communication network, GPS-tracked mobile spraying systems, and a command system configured for proactively spraying environmentally-safe anti-fire chemical liquid on combustible property surfaces to protect property against fire ignition and flame spread in the presence of wild fire
US11865390B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean water-based fire inhibiting biochemical compositions, and methods of and apparatus for applying the same to protect property against wildfire
US11865394B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean biodegradable water-based concentrates for producing fire inhibiting and fire extinguishing liquids for fighting class A and class B fires
CN108096752A (zh) * 2017-12-19 2018-06-01 江苏盖亚建筑工程有限公司 一种消防***
US11826592B2 (en) 2018-01-09 2023-11-28 Mighty Fire Breaker Llc Process of forming strategic chemical-type wildfire breaks on ground surfaces to proactively prevent fire ignition and flame spread, and reduce the production of smoke in the presence of a wild fire
GR20200100134A (el) * 2020-03-13 2021-10-13 Νικολαος Κωνσταντινου Ζερβος Συστημα εγκαιρου ανιχνευσης και ειδοποιησης πυρκαγιων
US11911643B2 (en) 2021-02-04 2024-02-27 Mighty Fire Breaker Llc Environmentally-clean fire inhibiting and extinguishing compositions and products for sorbing flammable liquids while inhibiting ignition and extinguishing fire

Also Published As

Publication number Publication date
BR9007134A (pt) 1991-12-17
IT8948686A0 (it) 1989-12-21
ES2094807T3 (es) 1997-02-01
PT96268A (pt) 1992-09-30
GR3021588T3 (en) 1997-02-28
EP0458938A1 (fr) 1991-12-04
DE69028296T2 (de) 1997-04-24
CA2047190C (fr) 1999-05-11
ATE142039T1 (de) 1996-09-15
EP0458938B1 (fr) 1996-08-28
TNSN90156A1 (fr) 1991-03-05
PT96268B (pt) 1998-07-31
CA2047190A1 (fr) 1991-06-21
IT1237262B (it) 1993-05-27
DE69028296D1 (de) 1996-10-02

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