EP0764927A1 - Video surveillance system - Google Patents

Video surveillance system Download PDF

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Publication number
EP0764927A1
EP0764927A1 EP96402009A EP96402009A EP0764927A1 EP 0764927 A1 EP0764927 A1 EP 0764927A1 EP 96402009 A EP96402009 A EP 96402009A EP 96402009 A EP96402009 A EP 96402009A EP 0764927 A1 EP0764927 A1 EP 0764927A1
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EP
European Patent Office
Prior art keywords
images
cameras
alarm signal
island
alarm
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.)
Granted
Application number
EP96402009A
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German (de)
French (fr)
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EP0764927B1 (en
Inventor
Bernard Chataigner
Jean-Marc Prodhomme
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.)
Cp Synergie
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Cp Synergie
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation 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
    • G08B13/194—Actuation 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
    • G08B13/196—Actuation 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
    • G08B13/19695—Arrangements wherein non-video detectors start video recording or forwarding but do not generate an alarm themselves
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation 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
    • G08B13/194—Actuation 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
    • G08B13/196—Actuation 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
    • G08B13/19639—Details of the system layout
    • G08B13/19641—Multiple cameras having overlapping views on a single scene
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation 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
    • G08B13/194—Actuation 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
    • G08B13/196—Actuation 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
    • G08B13/19678—User interface
    • G08B13/19689—Remote control of cameras, e.g. remote orientation or image zooming control for a PTZ camera

Definitions

  • the present invention relates to a video surveillance system.
  • the system proposed by the invention allows the monitoring of sensitive environments, presenting a high security risk.
  • Many surveillance systems which comprise a plurality of cameras observing a given environment, the images of these cameras being centralized at a command and surveillance station where they are displayed on a plurality of monitors by one or more operators. .
  • the invention proposes a video surveillance system which overcomes this drawback and thanks to which the task of monitoring operators who are at the control station is considerably simplified.
  • Surveillance systems comprising a plurality of cameras observing a given environment, and a control station where the images recorded by the cameras are viewed, this environment is divided into a plurality of islands being monitored. local, the system comprising means making it possible to transmit at the level of each island, when an incident is detected there, an alarm signal which carries identification information, means for receiving this alarm signal, a management unit to which the received signal is transmitted, which processes this signal in a manner to locate the island from which the alarm signal was issued.
  • the invention proposes a video surveillance system of the aforementioned type, characterized in that it includes means for controlling a camera according to different orientations and / or optical settings, so that the same camera can view different islets, the '' management unit automatically and instantaneously controlling the orientation of the cameras and their adjustment, so that the control station visualizes as soon as an alarm signal is detected the entire island from which this signal comes alarm.
  • the alarm signal can be of any type: over the air, infrared, cable, etc.
  • Incidents are detected either by other operators or by specific sensors in each of the monitored sub-areas.
  • visualization processing which is automatic.
  • the operators who are at the level of the command post can devote themselves to the analysis of the detected incidents and to the definition of the necessary interventions.
  • Figure 1 there is shown schematically a football stadium S which we want to monitor the stands T.
  • stadium S is equipped with several sets of cameras (rack 1 to rack 4 in FIG. 1) capable of each observing one or more compartments C of the stands.
  • the arrows shown in FIG. 1 illustrate, for example, a possible field of view for cameras in rack 4.
  • the different compartments C which constitute the stands are each subdivided into a plurality of islands 5 which, for example, each correspond to approximately 1000 to 1500 spectators.
  • the detection of an incident occurs at the level of the islands 5 themselves. It can be carried out automatically, by means of specific sensors, or be taken care of by members of the security team placed in the grandstands T.
  • Each member is for example in charge of an island 5 which he monitors by placing himself at the level of the last row of the stands.
  • a member of the security team When a member of the security team detects an incident, he activates a transmitter which transmits to a general receiver a coded signal comprising location information (for example the number of the island where he is located).
  • the cameras which are assigned to compartment C where this island 5 is located are then automatically oriented on this island and preset in zoom and focus according to the scheduled programming.
  • the island in question is subdivided into four sectors 6, each observed by a particular camera from the same rack, these sectors each corresponding to approximately 250 to 300 people.
  • the images thus collected are transmitted to a control station where they are displayed on four separate monitors.
  • This control station therefore has four complementary images enabling it to analyze the detected incident.
  • control station has the possibility of refining the orientation of the camera or cameras as well as their focus and their zoom so as to have, as illustrated in FIG. 4, the best possible image of the precise area where the incident occurred.
  • the recording of the images recorded by the cameras concerned is triggered automatically, so as to allow the incident to be reviewed, analyzed and reproduced (proof) immediately or later.
  • the images are digitized, compressed and encrypted then stored on hard disk, with the possibility of an immediate destocking for reading on a screen or for storage on a photographic medium (optical disk, DAT cassette, hard disk memory, ...) or video.
  • FIG. 5 in which the various elements which make up the system proposed by the invention have been schematically illustrated.
  • the system includes a plurality of cameras 10 grouped on racks. These cameras 10 are mounted on turrets 11 which allow their orientation in elevation and on which they are orientable in azimuth.
  • the elevation and azimuth orientation of the cameras 10 is controlled by telemetric signals S Tel which are transmitted by a management unit 13 to actuation means 12 which control the pivoting of the turrets 11 as well as the tilting of the cameras 10.
  • These telemetry signals S Tel also transmit information to the camera 10 for adjusting its optics 10a.
  • the means 12 also exchange in the opposite direction with the unit 13 to which they provide information relating to the operation of the cameras 10 and the turrets 11 (elevation and azimuth positions, adjustment of the optics 10a, etc.).
  • the images recorded by the cameras 10 are transmitted to means 14 where they are subject to video matrixing.
  • the processing by the management unit 13 is implemented on the reception by receivers 15 of an alarm signal emitted by a unit 16.
  • the units 16 are, for example, as previously described, RF remote controls operated by members of the security team. Other types of remote controls can be used: IR, ultrasound, etc.
  • the remote controls can be simple or identifiable remote controls or provided with alphanumeric keyboards allowing the wearer to address his own functional and geographic data.
  • the units 16 can also be constituted by detectors which automatically detect an incident for example as a function of movements in the monitored area (radar and volumetric sensor, hyper frequency barrier, radiating system, etc.), or even as a function of a noise level, a contact (sensitive cable) or an identification, any other type of detector being of course possible.
  • detectors which automatically detect an incident for example as a function of movements in the monitored area (radar and volumetric sensor, hyper frequency barrier, radiating system, etc.), or even as a function of a noise level, a contact (sensitive cable) or an identification, any other type of detector being of course possible.
  • the management unit 13 has a database 18 which allows its processing software 19 to recognize the source of the received alarm signal.
  • the matrixed images recorded by the cameras corresponding to the island concerned are transmitted to monitors 17 located at the control station P.
  • the operator of the control station P selects the image which enables him to correctly apprehend the incident and controls the cameras 10 (zoom, focus, tilting) and the turrets 11 for example to view certain details of the island concerned.
  • the received raster images are also sent to a processing unit 20 which digitizes them and stores them in a memory 21b.
  • the processing unit 20 can also simultaneously control the destocking of the images recorded for viewing on one of the monitors of another driving position 22 or their recording on a video medium. 21a in particular hard-copy (photo).
  • FIG. 6 The operating block diagram of such a system has been illustrated in FIG. 6.
  • a transmitter 16 emits an RF alarm signal when it is actuated either manually by a member of the surveillance team, or by a signal at the output of an electronic incident detection sensor, referenced by 23.
  • the transmitted alarm signal is coded and carries identification information corresponding for example to the coordinates of the holder of the remote control or to the coordinates of location of the electronic sensor.
  • the alarm signal is received by one or more receivers 15A, 15B each connected to a computer interface unit 24, which transmits the data it receives to the management unit 13.
  • the interface unit 24 also receives various information from the processing unit 13.
  • the information is, for example, a voice message MV to be transmitted at the level of the island from which the alarm originates, as well as data transmitted to the unit 12 for controlling the cameras 10 and their turrets 11.
  • the cameras 10 and the turrets 11 are associated with means 25 for their preprogramming in elevation, azimuth, zoom and focus.
  • the images recorded by the cameras 10 are transmitted to the processing unit 13 where they are subject to video matrixing (means 14), digitization and compression (processing 20a), encryption (processing 20b) and a storage 26 on memory means 21b.
  • the stored images can of course be destocked (processing 27), decrypted and decompressed (processing 28) for review on the monitors 17.
  • the digital images stored on the memory means 21b can be sent by a communication network, for example of the ISDN type on an external central PCC control station centralizing the information.
  • the various pieces of information (alarm or sound information) transmitted by the interface 24 to the processing unit 13 are processed by means 29 and then checked at the level of a unit 30.
  • the unit 30 controls the various settings of the alarm signal, other than those for identifying the transmitter.
  • the alarm information is processed by the software 19, which displays an alarm message and identifies, by means of its database 18, the island from which the alarm signal originates.
  • the identification information is transmitted to processing means 31 which address the cameras 10 corresponding to the identified island whose orientation, their zoom and their focal point are controlled instantaneously as a function of their preprogramming, the means 31 then automatically controlling the matrixing of images from these cameras for viewing on the monitors 17.
  • the software 19 also controls the telemetry network.
  • the audio signal received from the identified island is also processed at a unit 32, a sound emission signal being sent if necessary on the interface 24, via the computer link.
  • the messages received and transmitted by the units 31 and 32 are stored on memory means 31a and 32a.
  • the operators of the cockpit can intervene to emit a signal towards the island where the incident is located, control the cameras, etc ...
  • the software 19 allows the operators of the driving position to control a zoom of the cameras 10 so as to obtain close-ups of the area concerned, for example by using pre-programmed site, azimuth, focus positions.
  • operators can transmit an acknowledgment signal to the system which then makes the cameras 10 available for other use.
  • the software 19 displays a general block diagram of the monitored zones at the operator station, on which the zone under alarm is clearly visible.
  • the security monitoring carried out at the command post is simplified, the detection of an incident, the control of the cameras so as to view this incident being carried out automatically, without the intervention of the operators being at the control station, with automatic recording of the images and the transmission of an alarm message to the outside, if necessary.
  • the system allows operators of the control station to refine the images they receive to better identify the incident and the troublemakers by making close-ups on certain areas of the images initially automatically received.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Alarm Systems (AREA)

Abstract

The Surveillance System has TV cameras monitoring the spectator area, with each camera covering a specific stadium area. A command post monitors the camera images. Each camera has a receiver (15A) and a processing unit (13). When a crowd event is detected by the processing unit, an alarm is set at the control post, and individual cameras in the vicinity are set (25) to monitor the event, with focussing and zoom set appropriately. The video pictures are also recorded for future reference.

Description

La présente invention est relative à un système de vidéo surveillance.The present invention relates to a video surveillance system.

Le système proposé par l'invention permet la surveillance d'environnements sensibles, présentant un haut risque en matière de sécurité.The system proposed by the invention allows the monitoring of sensitive environments, presenting a high security risk.

Il trouve en particulier avantageusement application pour la surveillance d'événements sportifs, de spectacles, de manifestation ou rassemblement de tout type, mais également de zones urbaines, de sorties d'écoles, et de façon générale de tout lieu intérieur et extérieur ou site nécessitant une surveillance accrue.It finds in particular advantageously application for the monitoring of sporting events, shows, demonstration or gathering of any type, but also of urban areas, school outings, and in general of any interior and exterior place or site requiring increased surveillance.

On connaît de nombreux systèmes de surveillance qui comportent une pluralité de caméras observant un environnement donné, les images de ces caméras étant centralisées au niveau d'un poste de commande et de surveillance où elles sont visualisées sur une pluralité de moniteurs par un ou plusieurs opérateurs.Many surveillance systems are known which comprise a plurality of cameras observing a given environment, the images of these cameras being centralized at a command and surveillance station where they are displayed on a plurality of monitors by one or more operators. .

Du fait des limites de l'adaptation humaine à une quantité importante d'informations, l'appréciation par les opérateurs des différentes actions qui interviennent simultanément dans les différentes zones visualisées est souvent erratique et la prise en compte des incidents n'est pas automatique.Due to the limits of human adaptation to a large amount of information, the operators' appreciation of the different actions which take place simultaneously in the different areas displayed is often erratic and the taking into account of incidents is not automatic.

L'invention propose quant à elle un système de vidéo surveillance qui permet de pallier cet inconvénient et grâce auquel la tâche de surveillance des opérateurs qui se trouvent au niveau du poste de contrôle est considérablement simplifiée.The invention proposes a video surveillance system which overcomes this drawback and thanks to which the task of monitoring operators who are at the control station is considerably simplified.

On connaît déjà des systèmes de surveillance comportant une pluralité de caméras observant un environnement donné, et un poste de commande où les images relevées par les caméras sont visualisées, cet environnement est divisé en une pluralité d'îlots faisant l'objet d'une surveillance locale, le système comportant des moyens permettant d'émettre au niveau de chaque îlot, lorsqu'un incident y est détecté, un signal d'alarme qui porte une information d'identification, des moyens de réception de ce signal d'alarme, une unité de gestion à laquelle le signal reçu est transmis, qui traite ce signal de façon à localiser l'îlot d'où le signal d'alarme a été émis.Surveillance systems are already known comprising a plurality of cameras observing a given environment, and a control station where the images recorded by the cameras are viewed, this environment is divided into a plurality of islands being monitored. local, the system comprising means making it possible to transmit at the level of each island, when an incident is detected there, an alarm signal which carries identification information, means for receiving this alarm signal, a management unit to which the received signal is transmitted, which processes this signal in a manner to locate the island from which the alarm signal was issued.

On pourra à cet égard avantageusement se référer à US 5 298 057 et US 5 144 661.In this regard, it is advantageous to refer to US 5,298,057 and US 5,144,661.

L'invention propose quant à elle un système de surveillance vidéo du type précité caractérisé en ce qu'il comporte des moyens pour commander une caméra selon différentes orientations et/ou réglages optiques, de sorte qu'une même caméra peut visualiser différents îlots, l'unité de gestion commandant automatiquement et instantanément l'orientation des caméras et leur réglage, de façon que le poste de commande visualise dès la détection d'un signal d'alarme l'ensemble de l'îlot d'où provient ce signal d'alarme.The invention proposes a video surveillance system of the aforementioned type, characterized in that it includes means for controlling a camera according to different orientations and / or optical settings, so that the same camera can view different islets, the '' management unit automatically and instantaneously controlling the orientation of the cameras and their adjustment, so that the control station visualizes as soon as an alarm signal is detected the entire island from which this signal comes alarm.

L'émission du signal d'alarme peut être de tout type : par voie hertzienne, infrarouge, par câble, etc...The alarm signal can be of any type: over the air, infrared, cable, etc.

Avec un tel système, les opérateurs qui se trouvent au niveau du poste de contrôle sont déchargés de la détection. Les incidents sont détectés soit par d'autres opérateurs, soit par des capteurs spécifiques au niveau de chacune des sous-zones surveillées. Lorsqu'un incident est détecté dans une zone particulière, celle-ci fait l'objet d'un traitement de visualisation qui est automatique. Ainsi, les opérateurs qui se trouvent au niveau du poste de commande peuvent se consacrer à l'analyse des incidents détectés et à la définition des interventions nécessaires.With such a system, operators at the control station are relieved of detection. Incidents are detected either by other operators or by specific sensors in each of the monitored sub-areas. When an incident is detected in a particular area, it is subject to visualization processing which is automatic. Thus, the operators who are at the level of the command post can devote themselves to the analysis of the detected incidents and to the definition of the necessary interventions.

Ce système est avantageusement complété par les différentes caractéristiques suivantes, prises seules ou selon leur combinaison techniquement possible :

  • le système comporte des moyens permettant au poste de commande de commander les caméras pour visualiser un détail des images qui lui ont automatiquement été envoyées dès la détection d'une alarme ;
  • la surveillance est réalisée par des membres d'un service de sécurité situés au niveau des îlots et munis de télécommandes pour l'émission d'un signal d'alarme ;
  • la surveillance est réalisée par des détecteurs, par exemple de bruit, de mouvement, de contact, situés au niveau des îlots, émettant automatiquement un signal d'alarme lorsqu'ils détectent un incident ;
  • le système comporte des moyens pour enregistrer automatiquement et instantanément dès la réception d'une alarme en provenance d'un îlot, les images des caméras qui sont commandées pour visualiser cet îlot ;
  • le système comporte des moyens pour numériser ces images et les stocker sous forme numérique après compression ;
  • le système comporte des moyens pour crypter ces images avant stockage ;
  • les moyens de stockage des images numériques sont reliées à un poste central extérieur, par exemple par un réseau de communication téléphonique ;
  • le poste de commande comprend des moyens de déstockage pour la visualisation immédiate ou ultérieure des images stockées ou leur stockage sur un autre support.
This system is advantageously supplemented by the following different characteristics, taken alone or according to their technically possible combination:
  • the system includes means allowing the control station to control the cameras to view a detail of the images which have been automatically sent to it upon detection of an alarm;
  • surveillance is carried out by members of a security service located at the level of the islands and equipped with remote controls for the emission of an alarm signal;
  • monitoring is carried out by detectors, for example of noise, movement, contact, located at the islands, automatically emitting an alarm signal when they detect an incident;
  • the system comprises means for automatically and instantaneously recording, upon receipt of an alarm from an island, the images of the cameras which are controlled to view this island;
  • the system includes means for digitizing these images and storing them in digital form after compression;
  • the system includes means for encrypting these images before storage;
  • the means for storing digital images are connected to an external central station, for example by a telephone communication network;
  • the control station includes destocking means for immediate or subsequent viewing of the stored images or their storage on another medium.

D'autres caractéristiques et avantages de l'invention ressortiront encore de la description qui suit. Cette description est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés sur lesquels :

  • la figure 1 est une représentation schématique représentant l'exemple d'un stade de football surveillé par un système conforme à un mode de réalisation possible pour l'invention ;
  • la figure 2 est une représentation schématique illustrant la couverture d'un des îlots surveillés individuellement par les caméras du système selon l'invention ;
  • la figure 3 illustre la visualisation de cet îlot au niveau des moniteurs du poste de commande ;
  • la figure 4 est une représentation schématique illustrant un type d'images qui peut être visualisée au niveau du poste de commande, à partir de la visualisation automatique correspondant à celle de la figure 3 ;
  • la figure 5 est un schéma synoptique illustrant le principe d'un système conforme à un mode de réalisation possible de l'invention ;
  • la figure 6 est un schéma synoptique illustrant de façon plus détaillée le fonctionnement du système de la figure 5.
Other characteristics and advantages of the invention will emerge from the description which follows. This description is purely illustrative and not limiting. It must be read in conjunction with the appended drawings in which:
  • Figure 1 is a schematic representation showing the example of a football stadium monitored by a system according to a possible embodiment for the invention;
  • Figure 2 is a schematic representation illustrating the coverage of one of the islands individually monitored by the cameras of the system according to the invention;
  • FIG. 3 illustrates the display of this island at the level of the control station monitors;
  • FIG. 4 is a schematic representation illustrating a type of images which can be viewed at the control station, from the automatic viewing corresponding to that of FIG. 3;
  • Figure 5 is a block diagram illustrating the principle of a system according to a possible embodiment of the invention;
  • FIG. 6 is a block diagram illustrating in more detail the operation of the system of FIG. 5.

Sur la figure 1, on a représenté schématiquement un stade de football S dont on veut surveiller les tribunes T.In Figure 1, there is shown schematically a football stadium S which we want to monitor the stands T.

A cet effet, le stade S est équipé de plusieurs jeux de caméras (rack 1 à rack 4 sur la figure 1) susceptibles d'observer chacun un ou plusieurs compartiments C des tribunes. Les flèches portées sur la figure 1 illustrent par exemple un champ de prise de vue possible pour des caméras du rack 4.To this end, stadium S is equipped with several sets of cameras (rack 1 to rack 4 in FIG. 1) capable of each observing one or more compartments C of the stands. The arrows shown in FIG. 1 illustrate, for example, a possible field of view for cameras in rack 4.

Les différents compartiments C qui constituent les tribunes sont chacun subdivisé en une pluralité d'îlots 5 qui correspondent par exemple chacun à environ 1000 à 1500 spectateurs.The different compartments C which constitute the stands are each subdivided into a plurality of islands 5 which, for example, each correspond to approximately 1000 to 1500 spectators.

La détection d'un incident intervient au niveau des îlots 5 eux-mêmes. Elle peut être réalisée automatiquement, au moyen de capteurs spécifiques, ou être prise en charge par des membres de l'équipe de sécurité placés dans les tribunes T.The detection of an incident occurs at the level of the islands 5 themselves. It can be carried out automatically, by means of specific sensors, or be taken care of by members of the security team placed in the grandstands T.

Chaque membre est par exemple en charge d'un îlot 5 qu'il surveille en se plaçant au niveau du dernier rang des tribunes.Each member is for example in charge of an island 5 which he monitors by placing himself at the level of the last row of the stands.

Lorsqu'un membre de l'équipe de sécurité détecte un incident, il actionne un émetteur qui transmet à un récepteur général un signal codé comportant une information de localisation (par exemple le numéro de l'îlot où il se trouve).When a member of the security team detects an incident, he activates a transmitter which transmits to a general receiver a coded signal comprising location information (for example the number of the island where he is located).

Les caméras qui sont affectées au compartiment C où se trouve cet îlot 5 sont alors automatiquement orientées sur cet îlot et préréglées en zoom et focus selon la programmation prévue.The cameras which are assigned to compartment C where this island 5 is located are then automatically oriented on this island and preset in zoom and focus according to the scheduled programming.

Par exemple, ainsi qu'on l'a illustré sur les figures 2 et 3, l'îlot en question est subdivisé en quatre secteurs 6, chacun observé par une caméra particulière d'un même rack, ces secteurs correspondant chacun à environ 250 à 300 personnes.For example, as illustrated in FIGS. 2 and 3, the island in question is subdivided into four sectors 6, each observed by a particular camera from the same rack, these sectors each corresponding to approximately 250 to 300 people.

Les images ainsi relevées sont transmises à un poste de commande où elles sont visualisées sur quatre moniteurs distincts. Ce poste de commande dispose ainsi de quatre images se complétant lui permettant d'analyser l'incident détecté.The images thus collected are transmitted to a control station where they are displayed on four separate monitors. This control station therefore has four complementary images enabling it to analyze the detected incident.

A ce stade, le poste de commande a la possibilité d'affiner l'orientation de la ou les caméras ainsi que leur focus et leur zoom de façon à disposer, ainsi qu'illustré sur la figure 4, de la meilleure image possible de la zone précise où l'incident s'est produit.At this stage, the control station has the possibility of refining the orientation of the camera or cameras as well as their focus and their zoom so as to have, as illustrated in FIG. 4, the best possible image of the precise area where the incident occurred.

Par ailleurs, simultanément au déclenchement d'une alarme de détection d'incident, l'enregistrement des images relevées par les caméras concernées est déclenché automatiquement, de façon à permettre de revenir sur l'incident pour l'analyser et le reproduire (preuve) immédiatement ou ultérieurement.In addition, simultaneously with the triggering of an incident detection alarm, the recording of the images recorded by the cameras concerned is triggered automatically, so as to allow the incident to be reviewed, analyzed and reproduced (proof) immediately or later.

A cet effet, les images sont numérisées, comprimées et cryptées puis stockées sur disque dur, avec possibilité d'un déstockage immédiat pour lecture sur un écran ou pour stockage sur un support photographique (disque optique, cassette DAT, mémoire disque dur,...) ou vidéo.For this purpose, the images are digitized, compressed and encrypted then stored on hard disk, with the possibility of an immediate destocking for reading on a screen or for storage on a photographic medium (optical disk, DAT cassette, hard disk memory, ...) or video.

L'enregistrement cesse lorsque le poste de contrôle fournit au système un signal d'acquittement d'alarme.Recording stops when the control station supplies the system with an alarm acknowledgment signal.

L'opérateur garde bien entendu la possibilité de déclencher un enregistrement de sa propre initiative.The operator naturally retains the possibility of triggering a recording on his own initiative.

On se réfère maintenant à la figure 5 sur laquelle on a illustré schématiquement les différents éléments qui composent le système proposé par l'invention.Reference is now made to FIG. 5 in which the various elements which make up the system proposed by the invention have been schematically illustrated.

Ainsi qu'exposé précédemment, le système comporte une pluralité de caméras 10 regroupées sur des racks. Ces caméras 10 sont montées sur des tourelles 11 qui permettent leur orientation en site et sur lesquelles elles sont orientables en azimut. L'orientation en site et en azimut des caméras 10 est commandée par des signaux télémétriques STel qui sont transmis par une unité de gestion 13 à des moyens d'actionnement 12 qui commandent le pivotement des tourelles 11 ainsi que le basculement des caméras 10.As explained above, the system includes a plurality of cameras 10 grouped on racks. These cameras 10 are mounted on turrets 11 which allow their orientation in elevation and on which they are orientable in azimuth. The elevation and azimuth orientation of the cameras 10 is controlled by telemetric signals S Tel which are transmitted by a management unit 13 to actuation means 12 which control the pivoting of the turrets 11 as well as the tilting of the cameras 10.

Ces signaux télémétriques STel transmettent également à la caméra 10 des informations pour le réglage de son optique 10a.These telemetry signals S Tel also transmit information to the camera 10 for adjusting its optics 10a.

Les moyens 12 échangent en outre en sens inverse avec l'unité 13 à laquelle ils fournissent des informations relatives au fonctionnement des caméras 10 et des tourelles 11 (positions en site et azimut, réglage des optiques 10a, etc).The means 12 also exchange in the opposite direction with the unit 13 to which they provide information relating to the operation of the cameras 10 and the turrets 11 (elevation and azimuth positions, adjustment of the optics 10a, etc.).

Les images relevées par les caméras 10 sont transmises à des moyens 14 où elles font l'objet d'un matriçage vidéo.The images recorded by the cameras 10 are transmitted to means 14 where they are subject to video matrixing.

Le traitement par l'unité de gestion 13 est mis en oeuvre à la réception par des récepteurs 15 d'un signal d'alarme émis par une unité 16.The processing by the management unit 13 is implemented on the reception by receivers 15 of an alarm signal emitted by a unit 16.

Les unités 16 sont par exemple, ainsi que cela a été précédemment décrit, des télécommandes RF actionnées par des membres de l'équipe de sécurité. D'autres types de télécommandes peuvent être utilisées : IR, ultrasons, etc.The units 16 are, for example, as previously described, RF remote controls operated by members of the security team. Other types of remote controls can be used: IR, ultrasound, etc.

Egalement, les télécommandes peuvent être des télécommandes simples ou identifiables ou pourvues de claviers alphanumériques permettant au porteur d'adresser ses propres données fonctionnelles et géographiques.Also, the remote controls can be simple or identifiable remote controls or provided with alphanumeric keyboards allowing the wearer to address his own functional and geographic data.

En variante, les unités 16 peuvent également être constituées par des détecteurs qui détectent automatiquement un incident par exemple en fonction des mouvements dans la zone surveillée (radar et capteur volumétrique, barrière hyper fréquence, système rayonnant, etc), ou encore en fonction d'un niveau de bruit, d'un contact (câble sensible) ou d'une identification, tout autre type de détecteur étant bien entendu envisageable.As a variant, the units 16 can also be constituted by detectors which automatically detect an incident for example as a function of movements in the monitored area (radar and volumetric sensor, hyper frequency barrier, radiating system, etc.), or even as a function of a noise level, a contact (sensitive cable) or an identification, any other type of detector being of course possible.

L'unité de gestion 13 dispose d'une base de données 18 qui permet à son logiciel de traitement 19 de reconnaître la provenance du signal d'alarme reçu.The management unit 13 has a database 18 which allows its processing software 19 to recognize the source of the received alarm signal.

Lorsqu'un signal d'alarme est reçu, les images matricées relevées par les caméras correspondant à l'îlot concerné sont transmises à des moniteurs 17 situés au niveau du poste de commande P.When an alarm signal is received, the matrixed images recorded by the cameras corresponding to the island concerned are transmitted to monitors 17 located at the control station P.

L'opérateur du poste de commande P sélectionne alors l'image qui lui permet de correctement appréhender l'incident et commande les caméras 10 (zoom, focus, basculement) et les tourelles 11 par exemple pour visualiser certains détails de l'îlot concerné.The operator of the control station P then selects the image which enables him to correctly apprehend the incident and controls the cameras 10 (zoom, focus, tilting) and the turrets 11 for example to view certain details of the island concerned.

Les images matricées reçues sont par ailleurs envoyées sur une unité de traitement 20 qui les numérise et stocke dans une mémoire 21b.The received raster images are also sent to a processing unit 20 which digitizes them and stores them in a memory 21b.

L'unité de traitement 20 peut également commander parallèlement le déstockage des images enregistrées pour leur visualisation sur l'un des moniteurs d'un autre poste de conduite 22 ou leur enregistrement sur un support vidéo 21a notamment hard-copie (photo).The processing unit 20 can also simultaneously control the destocking of the images recorded for viewing on one of the monitors of another driving position 22 or their recording on a video medium. 21a in particular hard-copy (photo).

Le synoptique de fonctionnement d'un tel système a été illustré sur la figure 6.The operating block diagram of such a system has been illustrated in FIG. 6.

Un émetteur 16 émet un signal d'alarme RF lorsqu'il est actionné soit manuellement par un membre de l'équipe de surveillance, soit par un signal en sortie d'un capteur électronique de détection d'incident, référencé par 23.A transmitter 16 emits an RF alarm signal when it is actuated either manually by a member of the surveillance team, or by a signal at the output of an electronic incident detection sensor, referenced by 23.

Le signal d'alarme transmis est codé et porte une information d'identification correspondant par exemple aux coordonnées du porteur de la télécommande ou aux coordonnées de localisation du capteur électronique.The transmitted alarm signal is coded and carries identification information corresponding for example to the coordinates of the holder of the remote control or to the coordinates of location of the electronic sensor.

Le signal d'alarme est reçu par un ou plusieurs récepteurs 15A, 15B reliés chacun à une unité 24 d'interface informatique, qui transmet les données qu'elle reçoit à l'unité de gestion 13.The alarm signal is received by one or more receivers 15A, 15B each connected to a computer interface unit 24, which transmits the data it receives to the management unit 13.

Sur la figure 6, on a également représenté des moyens E pour l'écoute des différents îlots surveillés. Les signaux sont également transmis par l'unité d'interface 24 à l'unité de traitement 13.In Figure 6, there is also shown means E for listening to the various monitored islands. The signals are also transmitted by the interface unit 24 to the processing unit 13.

L'unité d'interface 24 reçoit également de l'unité de traitement 13 différentes informations. Les informations sont par exemple un message vocal MV à émettre au niveau de l'îlot d'où provient l'alarme, ainsi que des données transmises à l'unité 12 pour la commande des caméras 10 et de leurs tourelles 11.The interface unit 24 also receives various information from the processing unit 13. The information is, for example, a voice message MV to be transmitted at the level of the island from which the alarm originates, as well as data transmitted to the unit 12 for controlling the cameras 10 and their turrets 11.

Par ailleurs, les caméras 10 et les tourelles 11 sont associés à des moyens 25 pour leur préprogrammation en site, azimut, zoom et focus.Furthermore, the cameras 10 and the turrets 11 are associated with means 25 for their preprogramming in elevation, azimuth, zoom and focus.

Les images relevées par les caméras 10 sont transmises à l'unité de traitement 13 où elle font l'objet d'un matriçage vidéo (moyens 14), d'une numérisation et d'une compression (traitement 20a), d'un cryptage (traitement 20b) et d'un stockage 26 sur des moyens mémoire 21b. Les images stockées peuvent bien entendu faire l'objet d'un déstockage (traitement 27), d'un décryptage et d'une décompression (traitement 28) pour revisualisation sur les moniteurs 17.The images recorded by the cameras 10 are transmitted to the processing unit 13 where they are subject to video matrixing (means 14), digitization and compression (processing 20a), encryption (processing 20b) and a storage 26 on memory means 21b. The stored images can of course be destocked (processing 27), decrypted and decompressed (processing 28) for review on the monitors 17.

Par ailleurs, les images numériques stockées sur les moyens mémoire 21b peuvent être envoyées par un réseau de communication, par exemple de type RNIS sur un poste de commande centrale PCC extérieur centralisant les informations.Furthermore, the digital images stored on the memory means 21b can be sent by a communication network, for example of the ISDN type on an external central PCC control station centralizing the information.

Les différentes informations (informations d'alarmes ou sonores) transmises par l'interface 24 à l'unité de traitement 13 sont traitées par des moyens 29 puis contrôlées au niveau d'une unité 30.The various pieces of information (alarm or sound information) transmitted by the interface 24 to the processing unit 13 are processed by means 29 and then checked at the level of a unit 30.

Par exemple, l'unité 30 contrôle les différents paramétrages du signal d'alarme, autres que ceux d'identification de l'émetteur.For example, the unit 30 controls the various settings of the alarm signal, other than those for identifying the transmitter.

Il peut par exemple être prévu pour les signaux d'alarme un paramétrage suivant quatre catégories donnant déjà aux opérateurs une information sur l'évolution de l'incident : énoncé d'une adresse géographique très précise, identification de localisation sans précision certaine, mais circonscrite à l'îlot correspondant, incident se déplaçant, incident se déplaçant sur d'autres îlots, le phénomène s'éloignant du lieu de l'évènement initial.For example, provision can be made for alarm signals according to four categories which already provide operators with information on the development of the incident: statement of a very precise geographical address, identification of location without certain precision, but circumscribed to the corresponding block, moving incident, moving incident on other blocks, the phenomenon moving away from the place of the initial event.

Les informations d'alarme sont traitées par le logiciel 19, qui affiche un message d'alarme et identifie, au moyen de sa banque de données 18, l'îlot d'où provient le signal d'alarme.The alarm information is processed by the software 19, which displays an alarm message and identifies, by means of its database 18, the island from which the alarm signal originates.

L'information d'identification est transmise à des moyens de traitement 31 qui adressent les caméras 10 correspondant à l'îlot identifié dont l'orientation, leur zoom et leur focal sont commandés instantanément en fonction de leur préprogrammation, les moyens 31 commandant alors automatiquement le matriçage des images en provenance de ces caméras pour leur visualisation sur les moniteurs 17.The identification information is transmitted to processing means 31 which address the cameras 10 corresponding to the identified island whose orientation, their zoom and their focal point are controlled instantaneously as a function of their preprogramming, the means 31 then automatically controlling the matrixing of images from these cameras for viewing on the monitors 17.

Le logiciel 19 commande également le réseau de télémétrie.The software 19 also controls the telemetry network.

Le signal audio reçu de l'îlot identifié est également traité au niveau d'une unité 32, un signal d'émission sonore étant envoyé le cas échéant sur l'interface 24, via la liaison informatique.The audio signal received from the identified island is also processed at a unit 32, a sound emission signal being sent if necessary on the interface 24, via the computer link.

Les messages reçus et transmis par les unités 31 et 32 sont stockés sur des moyens mémoire 31a et 32a.The messages received and transmitted by the units 31 and 32 are stored on memory means 31a and 32a.

A tout moment, les opérateurs du poste de conduite peuvent intervenir pour émettre un signal en direction de l'îlot où se situe l'incident, commander les caméras, etc...At any time, the operators of the cockpit can intervene to emit a signal towards the island where the incident is located, control the cameras, etc ...

En particulier, le logiciel 19 permet aux opérateurs du poste de conduite de commander un zoom des caméras 10 de façon à obtenir des gros plans de la zone concernée, par exemple en utilisant des positionnements site, azimut, focus préprogrammés.In particular, the software 19 allows the operators of the driving position to control a zoom of the cameras 10 so as to obtain close-ups of the area concerned, for example by using pre-programmed site, azimuth, focus positions.

Egalement, les opérateurs peuvent transmettre au système un signal d'acquittement qui rend alors les caméras 10 disponibles pour une autre utilisation.Also, operators can transmit an acknowledgment signal to the system which then makes the cameras 10 available for other use.

Le logiciel 19 affiche au niveau du poste de conduite un synoptique général des zones surveillées sur lesquelles est portée de façon clairement visualisable la zone sous alarme.The software 19 displays a general block diagram of the monitored zones at the operator station, on which the zone under alarm is clearly visible.

Avec un tel système, comme on aura compris, la surveillance de sécurité réalisée au niveau du poste commande est simplifiée, la détection d'un incident, la commande des caméras de façon à visualiser cet incident étant réalisée automatiquement, sans intervention des opérateurs se trouvant au niveau du poste de commande, avec le cas échéant l'enregistrement automatique des images et la transmission de message d'alarme vers l'extérieur.With such a system, as will be understood, the security monitoring carried out at the command post is simplified, the detection of an incident, the control of the cameras so as to view this incident being carried out automatically, without the intervention of the operators being at the control station, with automatic recording of the images and the transmission of an alarm message to the outside, if necessary.

Par ailleurs, le système permet aux opérateurs du poste de commande d'affiner les images qu'ils reçoivent pour encore mieux identifier l'incident et les fauteurs de trouble en réalisant des gros plans sur certaines zones des images initialement automatiquement reçues.In addition, the system allows operators of the control station to refine the images they receive to better identify the incident and the troublemakers by making close-ups on certain areas of the images initially automatically received.

Bien entendu, ainsi que cela a déjà été indiqué, le système de surveillance proposé par l'invention vient ici d'être décrit dans une application à la surveillance des tribunes d'un stade de football mais peut être avantageusement utilisé pour la surveillance de toute autre zone sensible.Of course, as has already been indicated, the surveillance system proposed by the invention has just been described here in an application for monitoring the stands of a football stadium, but can be advantageously used for monitoring any other sensitive area.

Claims (10)

Système de surveillance vidéo comportant une pluralité de caméras (10) observant un environnement donné, et un poste de commande (P) où les images relevées par les caméras (10) sont visualisées, cet environnement est divisé en une pluralité d'îlots (5) faisant l'objet d'une surveillance locale, le système comportant des moyens (16) permettant d'émettre au niveau de chaque îlot, lorsqu'un incident y est détecté, un signal d'alarme qui porte une information d'identification, des moyens de réception (15, 15A, 15B) de ce signal d'alarme, une unité de gestion (13) à laquelle le signal reçu est transmis, qui traite ce signal de façon à localiser l'îlot (5) d'où le signal d'alarme a été émis, caractérisé en ce qu'il comporte des moyens pour commander une caméra selon différentes orientations et/ou réglages optiques, de sorte qu'une même caméra peut visualiser différents îlots, l'unité de gestion (13) commandant automatiquement et instantanément l'orientation des caméras (10) et leur réglage de façon que le poste de commande (P) visualise dès la détection d'un signal d'alarme l'ensemble de l'îlot (5) d'où provient ce signal d'alarme.Video surveillance system comprising a plurality of cameras (10) observing a given environment, and a control station (P) where the images detected by the cameras (10) are viewed, this environment is divided into a plurality of islands (5 ) subject to local monitoring, the system comprising means (16) making it possible to issue at each island, when an incident is detected there, an alarm signal which carries identification information, means for receiving (15, 15A, 15B) of this alarm signal, a management unit (13) to which the received signal is transmitted, which processes this signal so as to locate the island (5) from which the alarm signal has been emitted, characterized in that it comprises means for controlling a camera according to different orientations and / or optical settings, so that the same camera can view different islands, the management unit (13 ) automatically and instantly controlling the orienta tion of the cameras (10) and their adjustment so that the control station (P) displays as soon as an alarm signal is detected the entire island (5) from which this alarm signal originates. Système de surveillance selon la revendication 1, caractérisé en ce qu'il comporte des moyens (P, 31) permettant au poste de commande (P) de commander les caméras (10) pour visualiser un détail des images qui lui ont automatiquement été envoyées dès la détection d'une alarme.Monitoring system according to claim 1, characterized in that it comprises means (P, 31) allowing the control station (P) to control the cameras (10) to view a detail of the images which have been automatically sent to it from the detection of an alarm. Système selon l'une des revendications précédentes, caractérisé en ce que la surveillance est réalisée par des membres d'un service de sécurité situés au niveau des îlots et munis de télécommandes pour l'émission d'un signal d'alarme.System according to one of the preceding claims, characterized in that the surveillance is carried out by members of a security service located at the level of the islands and provided with remote controls for the emission of an alarm signal. Système selon l'une des revendications précédentes, caractérisé en ce que la surveillance est réalisée par des détecteurs (23), par exemple de bruit, de mouvement, de contact, situés au niveau des îlots, émettant automatiquement un signal d'alarme lorsqu'ils détectent un incident.System according to one of the preceding claims, characterized in that the monitoring is performed by detectors (23), for example of noise, movement, contact, located at the islands, automatically emitting an alarm signal when they detect an incident. Système selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des moyens (20, 21b) pour enregistrer automatiquement et instantanément dès la détection d'une alarme en provenance d'un îlot (5), les images des caméras (10) qui sont commandées pour visualiser cet îlot (5).System according to one of the preceding claims, characterized in that it comprises means (20, 21b) for automatically and instantaneously recording, upon detection of an alarm from an island (5), the images of the cameras ( 10) which are controlled to display this island (5). Système selon la revendication 5, caractérisé en ce qu'il comporte des moyens (20a) pour numériser ces images et les stocker sous forme numérique après compression.System according to claim 5, characterized in that it comprises means (20a) for digitizing these images and storing them in digital form after compression. Système selon la revendication 6, caractérisé en ce qu'il comporte des moyens (20b) pour crypter ces images avant stockage.System according to claim 6, characterized in that it comprises means (20b) for encrypting these images before storage. Système selon l'une des revendications 6 ou 7, caractérisé en ce que les moyens (21b) de stockage des images numériques sont reliées à un poste central extérieur (PCC), par exemple par un réseau de communication téléphonique.System according to one of claims 6 or 7, characterized in that the means (21b) for storing digital images are connected to an external central station (PCC), for example by a telephone communication network. Système selon l'une des revendications 6 à 8, caractérisé en ce que le poste de commande (P) comprend des moyens de déstockage (27) pour la visualisation immédiate ou ultérieure des images stockées ou leur stockage sur un autre support.System according to one of claims 6 to 8, characterized in that the control station (P) comprises destocking means (27) for immediate or subsequent viewing of the stored images or their storage on another medium. Utilisation du système selon l'une des revendications précédentes pour la surveillance de stades de football, la surveillance urbaine, de parking, et de façon générale de tous sites sensibles.Use of the system according to one of the preceding claims for the surveillance of football stadiums, urban surveillance, parking, and in general of all sensitive sites.
EP19960402009 1995-09-22 1996-09-23 Video surveillance system Expired - Lifetime EP0764927B1 (en)

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FR9511157A FR2739207B1 (en) 1995-09-22 1995-09-22 VIDEO SURVEILLANCE SYSTEM

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FR2739207A1 (en) 1997-03-28
ES2180717T3 (en) 2003-02-16
DE69623403T2 (en) 2003-04-17
EP0764927B1 (en) 2002-09-04
DE69623403D1 (en) 2002-10-10
FR2739207B1 (en) 1997-12-19

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