Method for monitoring a surveillance area

p0001The invention relates to a method for monitoring a protected against intrusion of unauthorized security area, such as rooms, buildings and grounds, according to the preamble of claim 1.

p0002In today usual method for monitoring security areas supplied by installed in the security area video cameras video images are transferred to compiled in a monitoring center monitors, each monitor is assigned an installed at a known location in the security area video camera. The monitors of a guards constantly watched, usually assigned to multiple monitors to a monitoring person. The attention of the guards set by fatigue limits when considering the mostly static images. This can often brief moments of intrusion by unauthorized persons are missed in the backup area and therefore not noticed.

p0003The invention has for its object to provide a monitoring process of the aforementioned type, which ensures a continuous, reliable monitoring without or with minimum manpower, so runs fully automatically.

p0004The object is achieved by the features in claim. 1

p0005The inventive method has the advantage that in particular large-scale security areas, such as factory premises and military installations can be monitored continuously, without personnel. A minimal manpower is exclusively complementary sense for the perception of acoustic and / or optical warning and danger signals in order to organize or to trigger when they occur appropriate protective and defensive measures against unauthorized objects intruding. But this could be automatically initiated with appropriate extension of the process, so that no personnel is required.

p0006The inventive method can be advantageously used for the monitoring of rooms and buildings, in particular for the monitoring of large areas, since in the conventional methods of personnel expenses is greatest and therefore the economic effect is strongest by the self-running process. The inventive method can advantageously be used for border security and to protect merchant vessels against piracy by the ship deck is time-monitored without interruption in piracy risk waters to foreign penetration and appropriate safeguards on hatches and entrances are activated automatically upon detection of moving objects.

p0007Expedient embodiments of the method according to the invention with advantageous developments and refinements of the invention result from the additional claims 2 to 12th

p0008An advantageous monitoring device for implementing the method according to the invention is specified in claim thirteenth Advantageous embodiments and improvements of the monitoring device can be found in the claims 14 to 17th

p0009The inventive method is described in more detail with reference to the drawing below. Show it:<dl id="dl0001"><dt>Fig. 1</dt><dd>a plan view of a schematically outlined security area, which is monitored against intrusion of unauthorized persons,</dd><dt>FIG. 2</dt><dd>a virtual map of the security area in Fig. 1,</dd><dt>Fig. 3</dt><dd>a block diagram of the installed in the security area according to FIG. 1 monitoring device.</dd></dl>

p0010The in FIG. 1 in plan view schematically sketched backup area, which is protected against intrusion of unauthorized persons, is a vast area 10, in the embodiment, a factory site, which is bounded on its periphery by a fence 11th From a road 12 leads an access road 121 in the area 10. In the area 10 are an example of a gatehouse, where a monitoring center 13 is housed, and built several components 14th A parking lot 15 is expanded between 121 driveway and gatehouse with monitoring center. 13 A fence section 111 separates the parking lot from the remaining 15 premises and are the gatehouse with monitoring center 13 a passage or a passage free.

p0011The fenced area 10 is backed up with a monitoring device, as outlined in block diagram in Fig. 3. The monitoring device includes a plurality of video cameras 16 which are installed along the fence 11 so that they completely the fence 11 itself and, in addition certain of the fence 11 can detect interior and exterior marginal portions of the area 10 visually. In addition, video cameras 16 are installed on the fence section 111th Depending on requirements, both Tagessicht- and night vision cameras, so-called. Infrared cameras installed.

p0012In the area 10, a bus system 17 is moved, which leads to the monitoring center thirteenth The bus system 17 is implemented using copper cables or optical fibers. All video cameras 16 are connected via a sensor interface 18, the so-called. Sensor interface to the bus system 17 is switched on (Fig. 3). On the side of the monitoring center 13, the bus 17 via a bus interface 19, the so-called. Bus interface, connected to a video processor 20 having image processing software. An electronic control unit with control panel 21 and two monitors 32, 33 serves to control the video processor 20 and peripherals, such as printers 22, recorder or recorder 24, audio and visual warning elements 23, and possibly a modem 25 for telecommunications with a command center 26 for security forces. Also, a radio receiver 27 is installed in the area 10, which is applied via a sensor interface 18 to the bus system 17th How not indicated in FIG. 1, but is sketched in Fig. 3, headlights 28 are installed to illuminate the area 10 or only the most vulnerable sections Areal complex 10 at various locations. In addition, 10 visual and / or audible alarms can be set 29, which can be activated to deter invading people in the area. The activation devices for headlights 28 and alarms 29 are connected to the bus system 17 via one or more sensor interfaces 18th An uninterruptible power source 30 provides the monitoring center 13 for the electrical power supply.

p0013. With the described monitoring device, the area 10 shown in Figure 1 is secured against intrusion by unauthorized persons using the following method:

p0014The video data of all the periphery of the area 10 and the fence portion 111 monitoring video cameras 16 are supplied via the bus system, the sensor interfaces 18 and 17 of this via the bus interface 19 to the video processor 20 in the monitoring center thirteenth Installed in the video processor 20 image processing software analyzes the image content through the existing data from the video Video images and their temporal order on motions. If movements are detected, an object synthesis is carried out and thereby extracted moving objects. The extracted objects 01, 02 are in a virtual map 31 of the area 10, as shown in FIG. 2, registered, and at a location in the map 31, corresponding to the position of the extracted object in the area 10, and their ongoing Currently occupied positions 01-1, 01-2. 01-3 ... and 02-1, 02-2, 02-3 ... recorded in the map 31 in a track track T1, T2. With extraction of moving objects, a first warning level is automatically activated, which emits a warning signal in the interstitial space of the monitoring center. 13 Exemplary lit one of the warning elements 23 and / or will beep.

p0015The map 31 is a scale model of the area 10, where 14 represented the gatehouse with monitoring station 13 and the building in their surface expansion, and are identified by part numbers BT1 to BT4 to identify eg. The monitoring center 13 in the gatehouse is exemplary shown with TS and the car park 15 with P. This map 31 is in the visualized a monitor 32 in the control unit 21st

p0016the movement direction of a moving object with respect to a defined in the Map 31 hot spots H is prädiktiert From held in Map 31 Track track T1, T2. A hot spot H defining a location, area or component complex 10 in the highest security level is considered, the penetration of unauthorized persons thus means the biggest threat for the area 10th The hot spot H is surrounded by a hot-spot region W with a lower security level. Is Predicted movement direction of the extracted object 01 or 02 is directed to a hot spot H or a hot spot region W, so the level of output to the warning above warning is raised. the color of the activated display element 23 for example will change from yellow to red.

p0017Furthermore, in the image processing software, the object signatures and object attributes A of the extracted objects O1 and 02 and thus determines the classified objects. The classified objects are classified into carried over the video processor 20 classification classes. If one of the objects classified belongs to a class that is classified as hazard class, as a danger signal generating a second warning stage is activated. The danger signal controls, for example, both warning elements 23 in the monitoring center 13 to. The object attributes A are to be registered in association with the object 01 or 02 in the map 31, by way of example 01-1 (A) or 02-1 (A) in Fig. 2. Visualization of the site plan 31 is the latest on the second activation warning level made. By activating the second warning level, the headlamps are 28 either completely or selectively in an area of ​​the area 10 in which the extracted object moves on. Also installed in the area 10 alarms can be set in 29 activities.

p0018To avoid triggering an alarm by guards who inspected the area 10, a comparison of an identification code of a complex 10 when the detected moving object and classified as person security guard with a stored in the video processor 20 code for its will before activating the second warning level access authorization performed. The identification code is permanently emitted from a transmitter carried by the security guard. If a match of the identification code detected by the access authorization code, the activation of the second warning level is exposed.

p0019For evidence supplied by the video cameras 16 video images along with auxiliary information such as the time, and recorded were carried out in the video processor 20 Object calculations with a recording device, preferably stored in a hard disk system. The recording and storage is carried out only in the case of object detections, so that the storing starts eg with occurrence of warning and / or alarm signals of warning levels and stopped at termination of warning and / or alarm signals. The video images are displayed in the monitor 33rd