EP1916618A1 - Method for monitoring a surveillance area - Google Patents

Method for monitoring a surveillance area Download PDF

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Publication number
EP1916618A1
EP1916618A1 EP20070018711 EP07018711A EP1916618A1 EP 1916618 A1 EP1916618 A1 EP 1916618A1 EP 20070018711 EP20070018711 EP 20070018711 EP 07018711 A EP07018711 A EP 07018711A EP 1916618 A1 EP1916618 A1 EP 1916618A1
Authority
EP
European Patent Office
Prior art keywords
characterized
object
security area
method according
warning
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Withdrawn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
EP20070018711
Other languages
German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Renken
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.)
Atlas Elektronik GmbH
Original Assignee
Atlas Elektronik GmbH
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
Priority to DE200610047892 priority Critical patent/DE102006047892A1/en
Application filed by Atlas Elektronik GmbH filed Critical Atlas Elektronik GmbH
Publication of EP1916618A1 publication Critical patent/EP1916618A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19639Details of the system layout
    • G08B13/19652Systems using zones in a single scene defined for different treatment, e.g. outer zone gives pre-alarm, inner zone gives alarm
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19608Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19613Recognition of a predetermined image pattern or behaviour pattern indicating theft or intrusion

Abstract

A method for monitoring a security area to be protected against intrusion by unauthorized persons, such as rooms, buildings and areas, uses video cameras which capture the security area and supply video images of it. In order to carry out the monitoring reliably and completely automatically with only a minimum of personnel, an image processing software is used to analyze the image content of the video images and their time sequence for movements. Upon detection of motions, an object synthesis is performed, and the objects extracted by the object synthesis are entered into a virtual location plan of the save area at a location corresponding to their location in the save area. Upon extraction of at least one moving object, a first warning signal generating a warning signal is automatically activated.

Description

  • The invention relates to a method for monitoring a security area to be protected against intrusion by unauthorized persons, such as rooms, buildings and areas, according to the preamble of claim 1.
  • In today's conventional surveillance of security areas, the video images supplied by video cameras installed in the security area are transmitted to monitors assembled in a surveillance center, each monitor being associated with a video camera installed in a known location in the security area. The monitors are constantly monitored by a security guard, typically with multiple monitors assigned to a guard. The attention of the guards is limited by looking at the mostly static images due to fatigue. As a result, brief moments of intrusion into the security area by unauthorized persons can often be missed and therefore not noticed.
  • The invention has for its object to provide a monitoring method of the type mentioned, which ensures a complete, reliable monitoring without or with minimal manpower, so runs fully automatic.
  • The object is achieved by the features in claim 1.
  • The method according to the invention has the advantage that, in particular, large-area security areas, such as factory premises and military installations, can be continuously monitored without the use of personnel. A minimal use of personnel makes sense only in supplementing the perception of audible and / or visual warning and danger signals, in order to organize or initiate corresponding protective and defense measures against unauthorized intrusion of objects when they occur. But even this could be initiated automatically with appropriate extension of the procedure, so that no staff is required.
  • The method according to the invention can advantageously be used for monitoring rooms and buildings, in particular for monitoring large areas, since in the case of the conventional methods, the personnel expenditure is greatest here, and thus the economic effect due to the automatically running process is greatest. The inventive method can be used advantageously for border security and also for the protection of merchant ships against piracy by the ship's deck is monitored in piracy endangered waters without interruption on time intrusion and automatically activated upon detection of moving objects appropriate security measures at hatches and entrances.
  • Advantageous embodiments of the method according to the invention with advantageous developments and Embodiments of the invention will become apparent from the further claims 2 to 12.
  • An advantageous monitoring device for carrying out the method according to the invention is specified in claim 13. Advantageous embodiments and improvements of the monitoring device can be found in the claims 14 to 17.
  • The inventive method is described in more detail with reference to the drawing below. Show it:
  • Fig. 1
    a top view of a schematically outlined security area, which is monitored against intrusion of unauthorized persons,
    Fig. 2
    a virtual location plan of the security area in Fig. 1,
    Fig. 3
    a block diagram of the installed in the security area of FIG. 1 monitoring device.
  • The schematically outlined in plan view in Figure 1 sketched security area, which is protected against intrusion of unauthorized persons, is a large area 10, in the exemplary embodiment, a factory site, which is bounded at its periphery with a fence 11. From a road 12, an access road 121 leads into the area 10. In the area 10 are exemplified a gatehouse, in which a monitoring center 13 is housed, and several components 14 built. A parking lot 15 is extended between access road 121 and gatehouse with monitoring center 13. A fence section 111 separates the parking lot 15 from the rest of the area and is at the gatehouse with monitoring center 13 a passage or a passage free.
  • The fenced area 10 is secured with a monitoring device, as sketched as a block diagram in FIG. The monitoring device has a multiplicity of video cameras 16 which are installed along the fence 11 in such a way that they optically capture the fence 11 itself and additionally certain inner and outer edge regions of the area 10 on the fence 11. In addition, video cameras 16 are installed on the fence portion 111. Depending on requirements, both day-vision and night-vision cameras, so-called infrared cameras, are installed.
  • In the area 10, a bus system 17 is laid, which leads to the monitoring center 13. The bus system 17 is realized with copper cables or glass fibers. All video cameras 16 are connected to the bus system 17 via a sensor interface 18, the so-called sensor interface (FIG. 3). On the part of the monitoring center 13, the bus system 17 is connected via a bus interface 19, the so-called bus interface, to a video processor 20 with image processing software. An electronic control unit with control panel 21 and two monitors 32, 33 is used to control the video processor 20 and peripherals, such as printer 22, recorder or recorder 24, audible and visual warning elements 23 and possibly a modem 25 for telecommunications with an operations center 26 for securing forces. In the area 10, a radio receiver 27 is also installed, which is connected via one of the sensor interfaces 18 to the bus system 17. As in Fig. 1 not indicated, but is outlined in Fig. 3, are installed in the area 10 at various locations headlights 28 for illuminating the area 10 or only particularly vulnerable area sections. In addition, 10 optical and / or acoustic alarm systems 29 can be set up in the area, which can be activated to deter intrusion of persons. The activation devices for headlights 28 and alarm systems 29 are connected to the bus system 17 via one or more sensor interfaces 18. An uninterruptible power source 30 provides in the monitoring center 13 for the necessary power supply.
  • With the described monitoring device, the area 10 shown in FIG. 1 is secured against the intrusion of unauthorized persons according to the following procedure:
  • The video data of all video cameras 16 monitoring the periphery of the area 10 and the fence section 111 are fed via the sensor interfaces 18 to the bus system 17 and from there via the bus interface 19 to the video processor 20 in the monitoring center 13. The image processing software installed in the video processor 20 analyzes the image content of the video images consisting of the video data and their time order for movement. If movements are detected, an object synthesis is carried out, thereby extracting moving objects. The extracted objects 01, 02 are entered into a virtual site plan 31 of the area 10, as shown in FIG. 2, at a location in the site map 31 corresponding to the position of the extracted object in the area 10, and continuously assumed instantaneous positions 01-1, 01-2. 01-3 ... or 02-1, 02-2, 02-3 ... in the location plan 31 recorded in a track track T1, T2. With extraction of itself moving objects, a first warning level is automatically activated, which emits a warning signal in the monitoring room of the monitoring center 13. By way of example, one of the two warning elements 23 lights up and / or emits a warning tone.
  • The site plan 31 is a true to scale replication of the area 10 in which the gatehouse with surveillance center 13 and the buildings 14 are shown in their areal extent and for identification e.g. are labeled with part numbers BT1 to BT4. The monitoring center 13 in the gatehouse is exemplified with ÜZ and the parking lot 15 with P. This map 31 is visualized in the control unit 21 in the one monitor 32.
  • From the track track T1, T2 recorded in the site plan 31, the direction of movement of a moving object with respect to hot spots H defined in the site plan 31 is predicted. A hot spot H defines a site, area or component in area 10 in which the highest security level applies, which means that intrusion by unauthorized persons represents the greatest threat to area 10. The hot spot H is surrounded by a warm spot area W with a lower security level. If the predicted movement direction of the extracted object 01 or 02 is directed to a hot spot H or a warm spot area W, the degree of the warning issued with the above-described warning signal is increased. For example, the color of the activated display element 23 changes from yellow to red.
  • Furthermore, in the image processing software, the object signatures and the object attributes A of the extracted objects O1 and 02 are determined and thus the objects classified. The classified objects are classified into classification classes held in the video processor 20. If one of the classified objects is classified in a class that is classified as a hazard class, a second warning level generating a danger signal is activated. The danger signal controls, for example, both warning elements 23 in the monitoring center 13. The object attributes A, in association with the object 01 or 02, are likewise entered in the site plan 31, by way of example 01-1 (A) or 02-1 (A) in FIG. 2. The visualization of the site plan 31 becomes at the latest upon activation of the second Warning level. Upon activation of the second warning level, the headlights 28 are turned on either completely or selectively in an area of the area 10 in which the extracted object is moving. In addition, the installed in Areal 10 alarms 29 can be put into action.
  • In order to avoid an alarm triggering by security guards who inspects the area 10, before activating the second warning level, a comparison of an identification code of a security guard classified in the area 10 as a moving object and classified as a person with a code stored in the video processor 20 for the latter Access authorization carried out. The identification code is broadcast permanently by a sentry who is accompanied by the security guard. If a match of the identification code with the access authorization code is detected, the activation of the second warning level is suspended.
  • To secure evidence, the video images supplied by the video cameras 16 together with auxiliary information, such as the time, and in the video processor 20 made object calculations with a recording device recorded, preferably stored in a hard disk system. The recording or storage takes place only in the case of object detections, so that the storage is started, for example, with occurrence of the warning and / or danger signals of the warning levels and stopped when the warning and / or danger signals go out. The video images are displayed in the monitor 33.

Claims (17)

  1. Method for monitoring a security area to be protected against intrusion by unauthorized persons, such as rooms, buildings and areas, in which the security area is detected by video camera (16) delivering at least one video image, characterized in that the image content of the video images and their chronological order are processed by means of image processing software Movements are analyzed out and that upon detection of movements an object synthesis is performed and objects extracted by the object synthesis (O1; 02) are registered in a virtual location plan (31) of the security area at a position corresponding to their position in the security area.
  2. A method according to claim 1, characterized in that with extraction of at least one object automatically a warning signal generating first warning level is activated.
  3. Method according to Claim 2, characterized in that the extracted objects (01; 02) track and their continuously assumed instantaneous positions (01-1, 01-2, 01-3; 02-1, 02-2, 02-3) as a track track (T1, T2) are recorded in the site plan (31).
  4. Method according to claim 3, characterized in that from the track track (T1, T2) the direction of movement of the object (01; 02) is predicted with respect to hot spots (H) defined in the site plan (31) and when pointing to a hot spot (H ), the degree of warning issued with the warning signal is raised.
  5. Method according to one of claims 1 to 4, characterized in that object signatures and object attributes (A) are determined and thus the objects (01; 02) are classified, that the classified objects (01; 02) are classified into classification classes and that when classifying a Object (01; 02) is activated in a classification class classified as a hazard class a second warning level generating a danger signal.
  6. A method according to claim 5, characterized in that before activating the second warning level, a comparison of an object (01, 02) radiated identification code is performed with a stored code for access authorization and the identity of the identification code and access authorization code Activation of the second warning level is suspended.
  7. Method according to claim 5 or 6, characterized in that the object attributes (A) in association with the object (01; 02) are entered in the site plan (31).
  8. Method according to one of claims 1 to 7, characterized in that the virtual site plan (31) with all entries on a monitor (32) is made visible.
  9. A method according to claim 8, characterized in that the visualization of the map (31) is made with activation of a warning level.
  10. Method according to one of claims 4 to 9, characterized in that activating at the latest the second warning level the security area illuminating headlights (28), and / or alarm systems (29), preferably selectively, are turned on.
  11. Method according to one of Claims 1 to 10, characterized in that the video images of the at least one video camera (16), together with auxiliary information, preferably of the time, are recorded by a recording device (24), preferably stored in a hard disk system.
  12. A method according to claim 11, characterized in that the recording or storage is started with occurrence of the warning or danger signals of the warning levels and stopped when the warning or danger signals go out.
  13. Device for monitoring a security area to be protected against intrusion by unauthorized persons, such as rooms, buildings and areas, with at least one security area detecting video camera (16) providing temporally successive video images and a surveillance center (13), characterized in that in the security area one to Monitoring center (13) leading bus system (17) is laid that the at least one video camera (16) via a sensor interface (18) is connected to the bus system (17) that in the monitoring center (13) via a bus interface (19) the video signal processor (20) connected to the bus system (17) with image processing software and a control unit (21) for controlling the video processor (20), and that the control of the video processor (20) is made from the image contents of the video images and their temporal Sequence of moving objects (O1; 02) and their object attributes (A) are determined and stored in a site plan (31) together with the object attributes corresponding to their object position (01-1, 01-2, 01-3; 02-1, 02- 2, 02-3) are held in the security area.
  14. Apparatus according to claim 13, characterized in that in the monitoring center (13) a monitor (32) for visualizing the map (31) is arranged.
  15. Device according to Claim 13 or 14, characterized in that at least one activation device for a headlight (28) set up in the security area and / or an acoustic and / or visual alarm system (29) installed in the security area are connected to the sensor interface (18).
  16. Device according to one of claims 13 to 15, characterized in that a radio receiver (27) for receiving identification codes is connected to a sensor interface (18).
  17. Device according to one of claims 13 to 16, characterized in that on the control device (21) further peripheral devices such as recording device (24), printer (22), modem for telecommunications (25) and optical and acoustic warning elements (23) are connected ,
EP20070018711 2006-10-10 2007-09-24 Method for monitoring a surveillance area Withdrawn EP1916618A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610047892 DE102006047892A1 (en) 2006-10-10 2006-10-10 Security area e.g. building, monitoring method, involves recording objects extracted by object synthesis in virtual position plan of security area at position corresponding to their position in security area

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EP1916618A1 true EP1916618A1 (en) 2008-04-30

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EP20070018711 Withdrawn EP1916618A1 (en) 2006-10-10 2007-09-24 Method for monitoring a surveillance area

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2951571A1 (en) * 2009-10-16 2011-04-22 Cecilia Leroy Garnier Device for monitoring e.g. car in residential premise and alerting e.g. monitoring staff, has processing module to process and parcel received images such that operator determines parts of images to be implemented under surveillance
US8457401B2 (en) 2001-03-23 2013-06-04 Objectvideo, Inc. Video segmentation using statistical pixel modeling
US8564661B2 (en) 2000-10-24 2013-10-22 Objectvideo, Inc. Video analytic rule detection system and method
US8711217B2 (en) 2000-10-24 2014-04-29 Objectvideo, Inc. Video surveillance system employing video primitives
US9020261B2 (en) 2001-03-23 2015-04-28 Avigilon Fortress Corporation Video segmentation using statistical pixel modeling
US9892606B2 (en) 2001-11-15 2018-02-13 Avigilon Fortress Corporation Video surveillance system employing video primitives

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US20050254712A1 (en) * 2004-05-12 2005-11-17 Robert Lindeman Event capture and filtering system
US20060126737A1 (en) * 2004-12-15 2006-06-15 International Business Machines Corporation Method, system and program product for a camera to track an object using motion vector data

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EP0977437A2 (en) * 1998-07-28 2000-02-02 Hitachi Denshi Kabushiki Kaisha Method of distinguishing a moving object and apparatus of tracking and monitoring a moving object
US20050162515A1 (en) * 2000-10-24 2005-07-28 Objectvideo, Inc. Video surveillance system
US20040008254A1 (en) * 2002-06-10 2004-01-15 Martin Rechsteiner Object protection device
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US20060126737A1 (en) * 2004-12-15 2006-06-15 International Business Machines Corporation Method, system and program product for a camera to track an object using motion vector data

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10026285B2 (en) 2000-10-24 2018-07-17 Avigilon Fortress Corporation Video surveillance system employing video primitives
US8564661B2 (en) 2000-10-24 2013-10-22 Objectvideo, Inc. Video analytic rule detection system and method
US8711217B2 (en) 2000-10-24 2014-04-29 Objectvideo, Inc. Video surveillance system employing video primitives
US9378632B2 (en) 2000-10-24 2016-06-28 Avigilon Fortress Corporation Video surveillance system employing video primitives
US10347101B2 (en) 2000-10-24 2019-07-09 Avigilon Fortress Corporation Video surveillance system employing video primitives
US9020261B2 (en) 2001-03-23 2015-04-28 Avigilon Fortress Corporation Video segmentation using statistical pixel modeling
US8457401B2 (en) 2001-03-23 2013-06-04 Objectvideo, Inc. Video segmentation using statistical pixel modeling
US9892606B2 (en) 2001-11-15 2018-02-13 Avigilon Fortress Corporation Video surveillance system employing video primitives
FR2951571A1 (en) * 2009-10-16 2011-04-22 Cecilia Leroy Garnier Device for monitoring e.g. car in residential premise and alerting e.g. monitoring staff, has processing module to process and parcel received images such that operator determines parts of images to be implemented under surveillance

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