EP0877996A2 - Dispositif pour la production d'une alarme et pour la surveillance d'une zone - Google Patents

Dispositif pour la production d'une alarme et pour la surveillance d'une zone

Info

Publication number
EP0877996A2
EP0877996A2 EP97903279A EP97903279A EP0877996A2 EP 0877996 A2 EP0877996 A2 EP 0877996A2 EP 97903279 A EP97903279 A EP 97903279A EP 97903279 A EP97903279 A EP 97903279A EP 0877996 A2 EP0877996 A2 EP 0877996A2
Authority
EP
European Patent Office
Prior art keywords
alarm
signal
alarm signal
generating
sensor
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.)
Withdrawn
Application number
EP97903279A
Other languages
German (de)
English (en)
Inventor
Michael Trompf
Hans J. Matt
Dieter Baums
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel SA, Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel SA
Publication of EP0877996A2 publication Critical patent/EP0877996A2/fr
Withdrawn legal-status Critical Current

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

  • the invention relates to a device for generating an alarm and a system for monitoring an area, in particular a spatially extended area.
  • Known systems for monitoring an area consist of a multiplicity of towers which are arranged at a certain distance from one another and on which a person is placed to monitor this area. The horizon is searched with the eyes and checked for possible forest fires. In the event of a fire, an alarm center is informed about an existing communication network and other subsequent functions, such as. B. the request for a fire truck are initiated.
  • known systems for monitoring an area are very complex and expensive, since one person must be employed per tower and the towers must not be set up too far apart.
  • systems for monitoring an area that do not relate to forest fire testing, but e.g. B. for flood detection, for cyclone prediction to determine environmental pollution or for earthquake detection, there are currently either no systems for detection or prediction, or very complex systems such as earthquake detection, a seismographic system, but which is not always ready for use .
  • the invention has for its object to provide a device and a system for generating an alarm, which can be implemented inexpensively, with a low probability of false alarm.
  • the device for generating an alarm operates fully automatically and the system for monitoring an area requires a considerably reduced number of people to monitor a large area. It is also advantageous that the likelihood of a false alarm is considerably reduced and, at the same time, a very quick and rapid generation of an alarm is ensured, which then ensure immediate repair of the damage and accordingly ensures damage limitation.
  • the monitoring center can be used to control the at least one sensor on the device for generating an alarm signal. This allows a further review of the Alarm probability can be guaranteed by manually from the monitoring center, for. B. a surveillance camera in the device for generating an alarm can be directed to the position of the likely alarm trigger point and thus the alarm can be verified.
  • Fig. 2 Schematic representation of a system for monitoring an area.
  • a device for generating an alarm consists of at least one sensor C1, C2 for generating at least one input signal (SI, S2).
  • the at least one sensor can be, for example, a video camera for taking pictures. This is used to pick up clouds of smoke or smoke columns. Another option is to use an infrared camera as a sensor. This is used to record heat radiation and thus detects heat sources that indicate a fire.
  • the two aforementioned cameras can be in a one-dimensional or in a multi-dimensional, e.g. B. the two-dimensional embodiment.
  • a one-dimensional camera takes a 360 ° picture of the surroundings when it is pivoted about its own axis.
  • the senor can be a laser plus receiver, which is used for the spectroscopic determination of the combustion products by measuring the backscattering components, e.g. B. particle size of the angle and wavelength is used.
  • spectroscopic determination of the combustion products by measuring the damping component can be carried out by means of such a laser and an assigned receiver.
  • a further embodiment of a sensor which is not described in further detail, is the use of a semiconductor that records physical / chemical determinations of changes in concentration in the air and thus suggests combustion products.
  • Other sensors can be those that detect special polluting substances or those that measure radioactive radiation.
  • An input signal SI, S2 generated by the at least one sensor C1, C2 is sent to at least one neural network NN1, NN2 for detecting an event and for determining at least one first output signal AI, A2 from the at least one generated input signal SI, S2 by means of pattern recognition.
  • the at least one neural network NN1, NN2 is used to prepare the sensor data by classifying them by generating parameters relevant to decision-making. Furthermore, a pattern recognition by comparison with learned knowledge, e.g. B. carried out by means of artificial neural networks.
  • the at least one first output signals AI, A2 determined in this way are sent to a first unit FL1 for generating an alarm.
  • the alarm is formed as an alarm signal B from the at least one first output signal AI, A2 in the first unit FL1.
  • This first unit can be, for example, rule-based fuzzy logic, which leads to a false alarm reduction based on the rules used.
  • this unit FL1 By means of this unit FL1, an overall decision is made and an alarm signal B and, depending on it, a possible measure for the occurrence of the alarm.
  • a multi-sensor system In an embodiment in which a plurality of sensors and correspondingly a plurality of neural networks are attached, such a system is referred to as a multi-sensor system, as is also used below. This is indicated in FIG. 1 in such a way that this multi-sensor system is indicated as a whole by broken lines.
  • a multi-sensor system can be used, for example, for forest fire detection, with a video camera for Smoke detection and an infrared camera for the detection of thermal radiation is attached.
  • a further sensor R a so-called smoke sensor, is attached, which records a signal A3 and also outputs it to the first unit FL1.
  • the multi-sensor system composed in this way merely represents a possible system and can be expanded at any time by a further sensor which corresponds to what has been described above, or one of the sensors mentioned can be replaced by another.
  • the use of some sensors requires a second tower, so that, for example, a transmitter is attached to a first tower and a receiver to a second tower.
  • the alarm signal B is sent to a second unit FL2 for the further reduction of a false alarm probability of the alarm signal B.
  • the false alarm probability is reduced in such a way that further input signals E1, E2, E3, E4 are given to this unit and a false alarm probability is reduced in this unit by means of a linking rule.
  • the additionally introduced input signals E1 to E4 are subject to different evaluation factors depending on the influence of the input variable. As a possibility are shown here that z. B. the first input signal El indicating the current time, the second input signal E2 indicating the date, the third input signal E3 indicating the current outside temperature and a fourth input signal E4 indicating, for example, air and / or soil moisture. Further or different input signals can be imagined and added at any time.
  • the second unit FL2 for reducing the probability of false alarms is also fuzzy logic, for example. Taking the influencing variables E1 to E4 into account, this forms an overall decision C from the multisensor information. This overall decision C includes either sending an alarm, yes or no.
  • a network connection N is additionally provided on the device, which is used to transmit the false alarm signal C via a communication network.
  • a communication network it should be imagined that, for example, a directional radio link is set up, or that a GSM network or DECT network or a conventional ISDN network or an analog telephone network is used.
  • satellites can be used, via which the communication then takes place.
  • a system for monitoring an area is composed of at least one device for generating an alarm signal I, as was explained in more detail with patent claim 1.
  • a device with its at least one sensor C1, C2 with its at least one neural network NN1, NN2 with its first unit FL1 and with its second unit FL2 are distributed in the area to be monitored.
  • three such devices I are specified, which are located on a tower in a forest. From these devices I, a false alarm signal C is sent to a monitoring center Z by means of a communication network for transmitting the alarm signal. The received false alarm reduced alarm signals C of the individual devices I are reported in the monitoring center Z.
  • the alarm can be checked manually, which are provided, for example, in the monitoring center Z as means RM, which enable control of the at least one sensor C1, C2 in the device for generating an alarm signal.
  • Such means can be used, for example, to move the sensors in the device I to a special point and, by using a zoom, to take a closer look at an avoidable source of fire.
  • the coordinate determination of the reported alarm also takes place in order to then initiate a further catalog of measures.
  • Such a catalog of measures can be, for example, ordering the fire brigade, initiating rescue measures or any other form.
  • a finite number of devices for generating an alarm signal I can be assigned to each monitoring center Z.
  • a monitoring center Z can also operate fully automatically and carry out a further verification and automatically forward an alarm, for example to a further center, such as. B. the fire brigade.
  • further input signals E6 can be used to expand the catalog of measures. For example, a current wind speed can be measured in the vicinity of the monitoring center Z and thus a further component can be assigned to the alarm, namely, for example, the assumed direction of propagation of the fire.
  • Such an input variable E6 can also be used to read in a possible land use plan, which then immediately shows which endangered or protected areas are located in the immediate vicinity of the source of the fire.
  • a first parameter is the duration of the drought
  • a second parameter is the current air humidity
  • a third parameter is the wind speed.
  • a rule for such fuzzy logic may look as follows. If the first parameter is the duration of the drought> than three days and a humidity ⁇ 40% and a wind speed is greater than 30 km / h, then the likelihood of forest fire is high. In an opposite case, when the duration of the drought is ⁇ than one day and the humidity> is 60% and the wind speed is> 30 km / h, the risk of forest fires is low.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)

Abstract

L'invention concerne la création d'un dispositif et d'un système pour la surveillance automatique d'une zone et pour la production d'une alarme, la probabilité de fausse alarme étant faible. L'invention concerne également l'utilisation d'un dispositif comportant des capteurs (C1, C2) et des réseaux neuronaux (NN1, NN2) destinés à la reconnaissance des formes en vue d'un prétraitement, et des unités (à logique floue) (FL1, FL2) pour la production d'un signal d'alarme (B, C) et pour la réduction des fausses alarmes. Ce signal d'alarme est transmis à un centre de contrôle où il peut être contrôlé à nouveau, et des fonctions subséquentes sont initiées le cas échéant.
EP97903279A 1996-02-02 1997-02-03 Dispositif pour la production d'une alarme et pour la surveillance d'une zone Withdrawn EP0877996A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996103828 DE19603828A1 (de) 1996-02-02 1996-02-02 Vorrichtung zum Erzeugen eines Alarmes und zur Überwachung eines Gebietes
DE19603828 1996-02-02
PCT/EP1997/000685 WO1997028521A1 (fr) 1996-02-02 1997-02-03 Dispositif pour la production d'une alarme et pour la surveillance d'une zone

Publications (1)

Publication Number Publication Date
EP0877996A2 true EP0877996A2 (fr) 1998-11-18

Family

ID=7784378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903279A Withdrawn EP0877996A2 (fr) 1996-02-02 1997-02-03 Dispositif pour la production d'une alarme et pour la surveillance d'une zone

Country Status (3)

Country Link
EP (1) EP0877996A2 (fr)
DE (1) DE19603828A1 (fr)
WO (1) WO1997028521A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9822956D0 (en) 1998-10-20 1998-12-16 Vsd Limited Smoke detection
US6901066B1 (en) † 1999-05-13 2005-05-31 Honeywell International Inc. Wireless control network with scheduled time slots
DE10210599A1 (de) * 2002-03-11 2003-09-25 Heinz Detlef Przybylak Erdbebensignalgerät
DE102013017395B3 (de) * 2013-10-19 2014-12-11 IQ Wireless Entwicklungsges. für Systeme und Technologien der Telekommunikation mbH Verfahren und Vorrichtung zur automatisierten Waldbrandfrüherkennung mittels optischer Detektion von Rauchwolken
CN105261143B (zh) * 2015-11-23 2017-06-23 四川汇源光通信有限公司 山火检测方法及装置
CN109255921A (zh) * 2018-11-13 2019-01-22 福州大学 一种基于分层模糊融合的多传感器火灾检测方法
CN110517433A (zh) * 2019-08-21 2019-11-29 深圳云感物联网科技有限公司 基于gis的森林防火指挥调度系统
DE102022200996A1 (de) 2022-01-31 2023-08-03 Robert Bosch Gesellschaft mit beschränkter Haftung Umgebungsbranddetektionsanordnung zur Überwachung von einem Überwachungsbereich, Verfahren, Computerprogramm und Speichermedium
DE102022133170A1 (de) 2022-12-13 2024-06-13 Dryad Networks GmbH Verfahren und vorrichtung zur detektion von waldbränden
CN116740880B (zh) * 2023-08-11 2023-10-20 山东潍科检测服务有限公司 一种基于大数据的森林火灾监控预警系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604699A (en) * 1984-01-25 1986-08-05 The United States Of America As Represented By The Secretary Of The Interior General earthquake observation system
DE3710265A1 (de) * 1987-03-28 1988-10-13 Licentia Gmbh Anlage zur frueherkennung von grossflaechigen braenden
DD285219A5 (de) * 1989-06-15 1990-12-05 Tu Dresden,Direkt. Forsch.,Dd Brandmelder
IL91441A0 (en) * 1989-08-25 1990-04-29 Israel Aircraft Ind Ltd Forest fire sensing system
IT1237261B (it) * 1989-12-20 1993-05-27 Selenia Ind Elettroniche Sensore infrarosso particolarmente idoneo per sistemi antincendio.
IT1237262B (it) * 1989-12-20 1993-05-27 Selenia Ind Elettroniche Sistema antincendio prevalentemente concepito per la salvaguardia dei boschi.
DE4022954A1 (de) * 1990-07-19 1992-01-23 Bodenseewerk Geraetetech Fehlerdetektor bei redundant vorgesehenen signalgebern
CH681574A5 (fr) * 1991-03-01 1993-04-15 Cerberus Ag
DE4113952C2 (de) * 1991-04-29 1995-05-18 Laukien Guenther Verfahren und Vorrichtung zum Vorhersagen von Erdbeben
DE9107452U1 (de) * 1991-06-17 1992-02-06 Weiss, Helmut, 7545 Hoefen Vorrichtung zur Feuerüberwachung, insbesondere in Waldgebieten
US5289275A (en) * 1991-07-12 1994-02-22 Hochiki Kabushiki Kaisha Surveillance monitor system using image processing for monitoring fires and thefts
DE4127004A1 (de) * 1991-08-16 1993-02-18 Avm Schmelter Gmbh & Co Kg Anordnung zur frueherkennung von braenden
GB2274333B (en) * 1993-01-07 1996-12-11 Hochiki Co Smoke detecting apparatus capable of detecting both smoke and fine particles
ES2070710B1 (es) * 1993-02-10 1997-05-01 Nacional Bazan De Construccion Sistema de vigilancia y deteccion de focos de calor en areas abiertas .
US5371367A (en) * 1993-04-13 1994-12-06 Envirotest Systems Corp. Remote sensor device for monitoring motor vehicle exhaust systems
DE4320873A1 (de) * 1993-06-23 1995-01-05 Hekatron Gmbh Schaltungsanordnung für einen optischen Melder zur Umweltüberwachung und Anzeige eines Störmediums
DE4324118C2 (de) * 1993-07-19 1996-01-25 Kayser Threde Gmbh Verfahren und Vorrichtung zur Bestimmung der Emissionsrate mindestens einer Gaskomponente eines Gasgemischs
JP2516733B2 (ja) * 1993-07-21 1996-07-24 株式会社優光社 車両用地震警報装置
DE4421950C2 (de) * 1993-12-09 1998-06-04 Peter Mueller Einrichtung zum Diagnostizieren und Regeln eines Verbrennungs- oder Elektromotors
DE4408558C1 (de) * 1994-03-14 1995-03-23 Hitschfel Werner Alarmanlage zur Überwachung von Gebäuden, Räumen, Geländeabschnitten oder Gegenständen
DE19514465C2 (de) * 1994-04-19 2001-03-08 Spherics Mess Und Analysetechn Analysator für Spherics-Signale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9728521A1 *

Also Published As

Publication number Publication date
WO1997028521A1 (fr) 1997-08-07
DE19603828A1 (de) 1997-08-07

Similar Documents

Publication Publication Date Title
EP1628260B1 (fr) Méthode et système de reconnaissance automatique de feux de forêts
DE10011411C2 (de) Bildgebender Brandmelder
DE69933056T2 (de) Überwachungssystem
DE3634628C2 (fr)
DE60310103T2 (de) Automatische detektion und überwachung von physischer bewegung an der äusseren begrenzung
DE3610466C2 (fr)
DE68926958T2 (de) Feueralarmsystem
EP0654770B1 (fr) Dispositif pour la détection précoce des incendies
DE19622806A1 (de) Verfahren und Vorrichtung zum Erfassen eines Feuers mit verschiedenen Arten von Feuersensoren
DE4222920A1 (de) Bildverarbeitung verwendendes ueberwachungsmonitorsystem
EP1022700A2 (fr) Decteur d'incendie par lumiere dispersee
DE69028296T2 (de) Feuerbekämpfungssystem geeignet für Waldüberwachung
EP0877996A2 (fr) Dispositif pour la production d'une alarme et pour la surveillance d'une zone
EP1061489B1 (fr) Détecteur d'intrusion avec dispositif de surveillance contre un sabotage
WO2001017838A1 (fr) Procede pour la surveillance d'une zone de danger
DE69127068T2 (de) Verfahren und Vorrichtungen zur Aufspürung eines Eindringlings
DE60319346T2 (de) Sensor mit erkennung von verdeckungen
EP2527868B1 (fr) Capteur de sécurité optoélectronique mesurant l'éloignement pour la surveillance d'une zone de surveillance
EP3291135A1 (fr) Surveillance des zones délimitées au moyen du robot de nettoyage
EP3474250B1 (fr) Procédé et système de détecteur permettant de détecter un risque d'incendie
DE2310127A1 (de) Integriertes gefahrenmeldesystem
DE102009043080B4 (de) Verfahren zur Detektion von Rauch und/oder Flammen und Detektionssystem
DE8609515U1 (de) Vorrichtung zur Sabotageüberwachung an einem IR-Bewegungsmelder
EP2758948B1 (fr) Détecteur d'incendie avec ensemble de capteurs
JPS61127289A (ja) 侵入警戒装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980811

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT SE

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

17Q First examination report despatched

Effective date: 19990910

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000121