EP1596348A1 - Procédé, dispositif et système pour la détection optimisée d'événements dans une région géographique - Google Patents

Procédé, dispositif et système pour la détection optimisée d'événements dans une région géographique Download PDF

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Publication number
EP1596348A1
EP1596348A1 EP05425156A EP05425156A EP1596348A1 EP 1596348 A1 EP1596348 A1 EP 1596348A1 EP 05425156 A EP05425156 A EP 05425156A EP 05425156 A EP05425156 A EP 05425156A EP 1596348 A1 EP1596348 A1 EP 1596348A1
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EP
European Patent Office
Prior art keywords
sensor
territory
directional
sectors
scanning
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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.)
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Application number
EP05425156A
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German (de)
English (en)
Inventor
Sandro General Contractor SRL Scrocca
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.)
SCROCCA SANDRO GENERAL CONTRACTOR S.R.L.
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General Contractor Srl
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Publication date
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Publication of EP1596348A1 publication Critical patent/EP1596348A1/fr
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    • 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
    • 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

Definitions

  • the present invention relates to a method for optimised detection of events on a geographical area, to an apparatus employing said method and to a detection system.
  • the invention concerns a method able to guarantee a scanning of a limited territory, in such a way to detect certain kind of events on the territory (e.g. fires, ice on different surfaces, hydrothermal alteration) in an optimised way, i.e. concentrating the more frequent scanning on sub-regions, that can be modified with the passing of time.
  • the invention further relates to an apparatus implementing the method of the invention using a (tele-) sensor and robotic means.
  • the invention further relates to system wherein one or more apparatuses are connected to a remote processing and control unit.
  • the Applicant does not know systems having a capillary distribution of detection units that are efficient, reliable and economically convenient.
  • automatised systems do not exist able to monitor the creation of code along highways and diffusing the relevant data without violating privacy, since these systems use video shots.
  • Object of the present invention is that of providing a method for detecting events within a pre-set volume solving the above-mentioned drawbacks.
  • Main object of the present invention is that of providing the apparatuses and instruments necessary for carrying out the method according to the invention.
  • each scanning cycle of territory comprises the motion of said at least one directional sensor with a first rotation about a vertical axis of an angle between 0° and 360° and a second rotation of an angle between 0° and 90° about horizontal axis perpendicular to the laying direction of said at least one directional sensor, the method comprising a preliminary step during which divides said first rotation in a first number of first angular sectors and said second rotation in a second number of second angular sectors so as to divide the territory into corona circular sectors, each scanning cycle comprising the motion of at least one directional sector so as to direct it later toward one or more of said corona circular sectors, detection of an event occurring by comparison of detected instantaneous values with an assembly of reference values for one or more chemical-physical parameters in said territory.
  • said second rotation is a rotation of an angle between 0° and 80°.
  • said first angular sectors are identical angular sectors.
  • said first identical angular sector correspond each to an angle corresponding to the focal opening of one of said at least one directional sensor.
  • said second angular sectors are identical angular sectors.
  • said second identical angular sector correspond each to an angle corresponding to the focal opening of one of said at least one directional sensor.
  • the method comprises a preliminary scanning, carried out at regular intervals, for individuating alterations of pre-set chemical-physical parameters with respect to said reference values, said one or more corona circular sectors comprising the sectors wherein said alterations have been individuated.
  • said one or more corona circular sector are subjected to scanning with a resolution higher than the preliminary scanning.
  • said at least one directional sensor is each time directed toward the centre of said corona circular sectors.
  • corona circular sectors wherein alterations of pre-set parameters have been individuated are subjected to scanning with a higher frequency than the other sectors.
  • the method comprises the use of one or more not directional sectors.
  • inventive method comprises a preliminary step wherein said at least one directional sensor is calibrated measuring a chemical-physical parameter of a pre-set territory remote zone at the ground level or above the ground level, said chemical-physical parameter being also measured by said at least one not directional sector provided close to said remote point.
  • At least two directional sensors are moved, for example a standard telecamera and an infrared thermo-camera.
  • individuation of the position of a detected event occurs by the polar co-ordinates obtained by the programming of the sensor motion.
  • positions of detected events are displayed overlapping the same on a bi-dimensional territorial map, reconstructing on said map said corona circular sectors.
  • said at least a directional sensor is an optical sensor, particularly an infrared sensor.
  • said at least one directional sensor is a variable focal sensor.
  • said at least one directional sensor is a temperature sensor.
  • said fixed control site comprises a metallic support element at the top of which a container (mainly a metallic container) is housed, within which said at least one directional sensor as well as a motion robotics for said sensor are provided.
  • said support element can be provided with electric self-supplying photovoltaic panels.
  • the apparatus can comprise one or more not directional sensors.
  • each one of said one or more sites comprises a local processor suitable to carry out a pre-processing of the meaningful data to be transmitted to the central processing unit.
  • transmission of said meaningful data occurs by a detection data transmission modem provided in each site.
  • said transmission occurs by cable telephony or by mobile telephones.
  • a receiving unit receives said meaningful data.
  • said meaningful data are transmitted by the receiving unit to a data switching unit, sending the data to the central unit comprising at least on electronic processor and/or storing them within a storage memory.
  • each one of said one or more control sites comprises a laser laying system for controlling the proper scanning of said at least one sensor.
  • territory positioning of the control sites can be made according to a preordained geometric matrix with linked nodes.
  • the system can comprise at least one installation comprising a surface monitored by at least one local sensor with respect to one or more chemical-physical parameters, said surface being suitable to be monitored by said at least one directional sensor at pre-set time instants.
  • Detection method preferably tele-detection, according to the invention provides a preliminary step of setting the detection modes in function of the territory ambit, of the strategies and of the control priority.
  • Detection modes and detected data are respectively processed and superimposed to a geo-altimetry.
  • Territory configuration of the territory spatial model to be controlled for example in a planimetric-altimetric form or altimetric form and for altimetric section profiles.
  • spatial orientation of a sensor is programmed, and scanning frequency of zones and width of detection are determined.
  • method comprises the use of sensor 1. It is operated by means able to make them regular movements, i.e. a first rotation about a vertical axis 2 (an axis perpendicular to the ground) and a second rotation with respect to an axis perpendicular to the first one and to the laying direction.
  • This second rotation moves the sensor of an ⁇ angle, preferably between 0° and 80° with respect to the position in correspondence of which the sensor is directed vertically toward the ground, so as to subject to scanning an essentially conical volume.
  • Distance range within which tested sensor works corresponds to these limits.
  • Sensor tested in this embodiment was an infrared sensor that can be employed with any lighting condition. Furthermore, an optical sensor can be employed for monitoring the formation of queues along the roads, without that the diffusion of the relevant information can infringe the privacy rules, since it concerns temperature data that, being included in set interval and configuration ranges, indicate the presence of the same queues.
  • territory to be controlled is divided into scanning sectors.
  • Said scanning sectors can be differently chosen, but a particularly efficient choose, thus particularly optimising the detection, is that of dividing the scanning about the vertical axis in a pre-set number of angular sectors, each angular sector corresponding to the focal opening angle of the optical sensor.
  • Said division into corona circular scanning sectors only has an advantage for the scanning efficiency, but it is particularly advantageous for an easy reconstruction of the data on a map of the subjected to scanning territory.
  • this advantage is correlated with a further coupling for motion.
  • sensor requires sometime for detecting an image corresponding to a scanning zone. After this time, system moves the sensor in such a way that it passes to the following corona circular sector.
  • the above can be particularly realised in such a way that motion starts in the processing local unit from the moment when the loading buffer is full.
  • Scanning modes are further such to maximise the tele-detection definition, frequency and precision of scanning where it is necessary for detecting meaningful events.
  • Said scanning can occur all along the volume defined by the above rotations, or only on part of it.
  • detections are preferably concentrated in correspondence of said critical volumes. It can be made both subjecting to scanning exclusively said volumes, and subjecting to scanning them with a higher frequency with respect to other volumes.
  • a local analyses of the detection site allows the recognition of the thermal events determining the alarm for example on the basis of critical levels set for temperature classes.
  • Controlled area is shown in figure 2, on a territory map.
  • Sensor employed is preferably an optical sensor, still more preferably an infrared sensor, remote detecting the temperature, preferably at a distance between 1 and 5 km. It is provided with predefinition of detectable thermal level that can be examined at time intervals by processing software.
  • an embodiment of the apparatus according to the invention provides self-powered data detection fixed positions 100, and a central unit 200 processing the information transmitted to the fixed positions 100 placed on territory, by which interesting events are detected.
  • Said cartographies can also be configured with user interactive modes.
  • Control site 100 is comprised of a metallic support element at the top of which an outside, proof container (mainly a metallic container) and for example with a hemispherical shape; it is provided with a protection part on which possible photovoltaic panels could be inserted for electric supply of the system; within said container sensor 1, 1', 1", motion robotics (not shown in the figure) and a local electronic processor 3, 3', 3", can be housed.
  • an outside, proof container mainly a metallic container
  • a protection part on which possible photovoltaic panels could be inserted for electric supply of the system
  • Receipt of data occurs in a receipt unit 7, that can be controlled by a control panel 8, receiving data both from sensors , 1', 1", preferably thermal sensors, and from other sensors (for example one or more smoke optic sensors 11, one or more multicriteria sensors 12, for example integrated multicriteria sensors anti-vandalism, smoke and temperature).
  • sensors for example one or more smoke optic sensors 11, one or more multicriteria sensors 12, for example integrated multicriteria sensors anti-vandalism, smoke and temperature).
  • Each control site 100 can take advantage of a possible laser laying system, for controlling the proper sensor 1, 1', 1" laying.
  • Total control of site is assigned to a self-diagnosis software for periodic control of the proper operation of the site in robotics motion and data transmission.
  • auxiliary control devices for controlling for example microclimate, hydrothermal, water bed, anti-vandalism, smokes, atmosphere, sun radiation.
  • Detection sites can control as an average a circular surface of about 300 hectares and their position on territory must be configured on the basis of local environmental control strategies (pattern, linear, punctiform extension); functionality of a system of stations is co-ordinated in progression of scannings.
  • Meaningful data of the event are transmitted by mobile telephone (for example optical fibre, fixed telephony, GSM, GPRS or UMTS, or other telecommunication system): they concern thermal entity of the event, detected image and polar co-ordinates of the event with respect to the emitting site individuated by an identification code.
  • mobile telephone for example optical fibre, fixed telephony, GSM, GPRS or UMTS, or other telecommunication system
  • control central unit 200 Before the control central unit 200, by the reception of the above data, sent from a site 100, superimposition is displayed on the monitor of the positioning of the event on the 2D thematic cartography prepared in order to intelligible individuation and interpretation of the event generating the alarm.
  • progressive cognitive deepening steps can be carried out:
  • Periodic collection of total data is memorised in a suitable hardware file. Said collection could be used for statistic, preventive, environmental, and hydro geological applicative extensions.
  • a very important particular application is detection and monitoring of ice on the road.
  • the system according to the invention it is possible detecting temperature of a scanning zone and, thanks to an auxiliary sensor, also the relative humidity in said scanning zone.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP05425156A 2004-05-14 2005-03-16 Procédé, dispositif et système pour la détection optimisée d'événements dans une région géographique Withdrawn EP1596348A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM20040245 ITRM20040245A1 (it) 2004-05-14 2004-05-14 Metodo per il rilevamento volumetrico ottimizzato di eventi su un'area geografica, apparato utilizzante tale metodo e relativo sistema di rilevamento.
ITRM20040245 2004-05-14

Publications (1)

Publication Number Publication Date
EP1596348A1 true EP1596348A1 (fr) 2005-11-16

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EP (1) EP1596348A1 (fr)
IT (1) ITRM20040245A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646311A (zh) * 2012-05-04 2012-08-22 中国科学院长春光学精密机械与物理研究所 实时动态巡航图像智能烟雾火情检测***

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567367A (en) * 1983-01-13 1986-01-28 Brown De Colstoun Francois Method for detecting a source of heat, more particularly a forest fire in a watched area, and system for carrying out said method
FR2598238A1 (fr) * 1986-05-05 1987-11-06 Latecoere Ste Indle Aviat Procede et dispositif pour detecteur les incendies
DE3710265A1 (de) * 1987-03-28 1988-10-13 Licentia Gmbh Anlage zur frueherkennung von grossflaechigen braenden
EP0432680A1 (fr) * 1989-12-11 1991-06-19 Fujitsu Limited Système de surveillance utilisant des images de domaines infrarouges
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
DE3927583A1 (de) * 1988-08-26 1997-03-06 Thomson Trt Defense Infrarotkamera zur Durchführung eines die Beobachtung im Bildmodus und im Panoramamodus kombinierenden Verfahrens
US5734335A (en) * 1989-12-20 1998-03-31 Finmeccanica S.P.A. Forest surveillance and monitoring system for the early detection and reporting of forest fires
WO2004008407A1 (fr) * 2002-07-16 2004-01-22 Gs Gestione Sistemi S.R.L. Systeme et procede de controle thermique d'un territoire

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567367A (en) * 1983-01-13 1986-01-28 Brown De Colstoun Francois Method for detecting a source of heat, more particularly a forest fire in a watched area, and system for carrying out said method
FR2598238A1 (fr) * 1986-05-05 1987-11-06 Latecoere Ste Indle Aviat Procede et dispositif pour detecteur les incendies
DE3710265A1 (de) * 1987-03-28 1988-10-13 Licentia Gmbh Anlage zur frueherkennung von grossflaechigen braenden
DE3927583A1 (de) * 1988-08-26 1997-03-06 Thomson Trt Defense Infrarotkamera zur Durchführung eines die Beobachtung im Bildmodus und im Panoramamodus kombinierenden Verfahrens
EP0432680A1 (fr) * 1989-12-11 1991-06-19 Fujitsu Limited Système de surveillance utilisant des images de domaines infrarouges
US5734335A (en) * 1989-12-20 1998-03-31 Finmeccanica S.P.A. Forest surveillance and monitoring system for the early detection and reporting of forest fires
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
WO2004008407A1 (fr) * 2002-07-16 2004-01-22 Gs Gestione Sistemi S.R.L. Systeme et procede de controle thermique d'un territoire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646311A (zh) * 2012-05-04 2012-08-22 中国科学院长春光学精密机械与物理研究所 实时动态巡航图像智能烟雾火情检测***

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