JP2007140630A - Tracking type monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tracking type monitoring system allowing easy prediction of an advance direction of an intruder without performing complicated image signal processing to certainly track the intruder. <P>SOLUTION: This tracking type monitoring system has an advance direction prediction database 202 preset with advance direction information for predicting any monitoring target area to which the intruder next advances correspondingly to each the monitoring target area when the intruder 100 intrudes in one monitoring target area. A monitoring screen control display device 301 makes a display device e disposed in a central part of a monitoring screen display a video photographed by a monitoring camera installed in the monitoring target area wherein the intruder 100 is detected, and also makes a display device disposed around the display device e disposed in the central part display the video photographed by the monitoring camera installed in the monitoring target area in an advance prediction direction of the intruder based on the advance direction prediction database 202. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a tracking type monitoring system that performs intrusion monitoring / tracking of unauthorized intruders (hereinafter simply referred to as intruders) to plant facilities such as power plants and factories, and more specifically, the direction of travel of detected intruders The present invention relates to a tracking type monitoring system that can easily predict tracking and reliably perform tracking work.

In the conventional “intruder detection / tracking system” for plant facilities such as power plants and factories, it was necessary for the observer to switch the surveillance camera after confirming the direction of the intruder. .
As a result, the burden of tracking work on the observer is large and the intruder may be lost.
For the purpose of improving such a conventional intruder detection / tracking system, for example, in the tracking type cooperative monitoring system disclosed in Japanese Patent Application Laid-Open No. 2004-266404, the video signal of the intruder taken by the surveillance camera is used. The movement direction of the intruder is predicted by acquiring the moving body information from the information, the information is transmitted to the monitoring camera in the direction of the predicted movement, and the image of the transmitted monitoring camera is displayed on the monitoring screen device to track the intruder. The certainty of work is improved.
Japanese Patent Laying-Open No. 2004-266404 (FIG. 2)

In a conventional system, a surveillance camera that monitors an intruder predicts the intruder's direction of travel by a complicated method such as performing image processing on the captured image, and monitors the progress prediction direction each time. The intruder was tracked by transmitting information to the camera.
Therefore, for example, if an intruder takes very agile behavior, or if there are multiple intruders and some of them are “decoys”, it is difficult to track the intruder. There was a possibility of losing sight.

  The present invention has been made to solve such problems. When an intruder is detected, the traveling direction of the intruder can be predicted by a method that is simpler and more reliable than the prior art. In addition, even if an intruder takes very agile behavior or there are multiple intruders, and there are those who become decoys, it is possible to track the intruder with high certainty. It is an object of the present invention to provide a tracking type monitoring system that can be used.

The tracking type monitoring system according to the present invention is a tracking type monitoring system that detects and tracks an intruder into a plant facility in which a plurality of monitoring target areas are set,
A plurality of monitoring cameras that are installed corresponding to each of the plurality of monitoring target areas and that photograph the corresponding monitoring target area, and that are installed corresponding to each of the plurality of monitoring target areas, to the corresponding monitoring target area A monitoring screen is composed of a plurality of intruder detection devices that detect a plurality of intruders and a plurality of display devices that respectively display images captured by the plurality of monitoring cameras, and the monitoring displayed on the display device of the monitoring screen Based on a request from the monitoring screen control display device, a monitoring screen control display device for a plant equipment monitor to monitor and track an intruder by viewing the video of the camera, and photographing of the plurality of monitoring cameras A monitoring camera control device that controls the operation and transmits the captured video of the monitoring camera to the monitoring screen control display device, and an intruder can select any monitoring target error. The monitoring screen is provided with a traveling direction prediction database in which traveling direction information for predicting which monitoring target area the intruder will travel next when the intruder enters is set in advance for each monitoring target area. The control display device displays an image captured by the monitoring camera installed in the monitoring target area where the intruder is detected on a display device disposed in the center of the monitoring screen, and displays the intruder's information based on the traveling direction prediction database. The video imaged by the monitoring camera installed in the monitoring target area in the progress prediction direction is displayed on the display device arranged around the display device arranged in the central portion.

According to the present invention, when the intruder enters any one of the monitoring target areas, the traveling direction prediction is set in which the traveling direction information that predicts which monitoring target area is to be advanced next to enter is set in advance. By using the database, it is not necessary to perform the complicated image signal processing to process the intruder's motion by processing the video signal captured by the surveillance camera as in the past, and the intruder's direction of travel (the intruder Since it is possible to easily predict the intruding monitoring target area), a tracking type monitoring system that can reliably detect an intruder and perform tracking work can be realized with a simple configuration and at low cost.
In addition, since it is possible to predict the arrival location (the next monitored area to enter) before the intruder reaches the next monitored area, appropriate monitoring is performed in advance in the next monitored area. In addition to being able to establish a system, it is possible to take an effective defense system as compared to the case where the traveling direction cannot be predicted in advance.

Embodiment 1 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, the same reference sign indicates the same or equivalent.
FIG. 1 is a diagram showing a system configuration of a tracking type monitoring system according to the present invention.
In the figure, reference numerals 101 to 104 denote monitoring cameras installed in each monitoring target area. The monitoring cameras 101 to 104 are connected to the monitoring camera control apparatus 201 via the monitoring camera network 106, respectively. Yes.
Reference numerals 111 to 114 denote intruder detection devices that detect intruders that enter the monitored area using, for example, infrared sensors. The intruder detection devices 111 to 114 are connected to the monitoring camera control device 201. is doing.

The monitoring camera 101 and the intruder detection device 111, the monitoring camera 102 and the intruder detection device 112, the monitoring camera 103 and the intruder detection device 113, and the monitoring camera 104 and the intruder detection device 114 have a one-to-one correspondence.
For example, the surveillance camera 101 can shoot a range (monitorable range) where the intruder detection device 111 detects an intruder.
Similarly, the intruder detection device and the monitoring camera 102, the intruder detection device 113 and the monitoring camera 103, and the intruder detection device 114 and the monitoring camera 104 are installed so that the intruder detection device and the monitoring camera 104 correspond to each other. And

The intruder detection information detected by the intruder detection devices 111 to 114 is transmitted to the surveillance camera control device 201, and the surveillance camera control device 201 controls the corresponding surveillance camera to photograph the intruder.
The surveillance camera control device 201 has a function of accumulating the video transmitted from the surveillance cameras 101 to 104. The surveillance camera 101 to the surveillance camera 101 to the demand of the surveillance screen control display device 301 at the same time as the accumulation of the video. The video sent from 104 is transmitted to the monitor screen control display device 301.
The monitoring screen control display device 301 has a monitoring screen composed of, for example, nine display screens from the display device a to the display device i, and the video of the monitoring camera that captured the intruder is displayed in the central display device e. Is displayed.
Note that display devices a to d and f to i are arranged around the display device e in the center.

The monitoring screen control display device 301 is connected to the traveling direction prediction database 202.
The traveling direction prediction database 202 stores data in which the identification information of the monitoring camera that captured the intruder is associated with the monitoring target area where the intruder is predicted to proceed (intrusion) in the future. .
Therefore, the monitoring screen control display device 301 knows the future prediction destination of the intruder currently displayed on the display device e at the central position of the monitoring screen control display device 301 by using the traveling direction prediction database 202. By acquiring a video of the progress prediction destination (that is, the monitoring target area predicted to be invaded next) from the monitoring camera control device 201, the acquired video is displayed on the display devices a to d and f. To i.

FIG. 2 is a diagram for explaining the operation of the tracking type monitoring system according to the first embodiment.
In the figure, 11 to 14 are monitoring target areas, 11 is a monitoring target area A where an intruder is currently intruding, and 12 to 14 are moved from the monitoring target area A where an intruder is currently intruding. Then, suppose that it is the monitoring target areas B to D where an intruder may invade in the future.
Also, 100 is an intruder, 101 is a monitoring camera installed in the monitoring target area A11, 102 is a monitoring camera installed in the monitoring target area B12, 103 is a monitoring camera installed in the monitoring target area C13, and 104 is a monitoring target. It is a surveillance camera installed in area D14.
Reference numeral 106 denotes a network connecting these surveillance cameras.
A monitoring camera control device 201 controls the shooting operation of each of the monitoring cameras 101 to 104 and is connected to the monitoring screen control display device 301.

Reference numeral 202 denotes a travel direction prediction database that stores information for predicting the travel direction of the intruder (the monitoring target area where the intruder enters next), and is connected to the monitoring screen control display device 301.
The monitoring screen control display device 301 includes, for example, nine display devices a to i, and the monitoring camera control device 201 installed corresponding to the monitoring target area where the intruder is currently invading. This is a device for displaying a video of the current intruder transmitted from the mobile phone and a video of the area to be monitored for future progress of the intruder transmitted from the travel direction prediction database 202.

FIG. 3 is a diagram illustrating an example of a database set in the traveling direction prediction database 202. FIG. 3A illustrates a “current monitoring camera” and a “monitor target to be predicted that an intruder will proceed in the future”. The correspondence table with “Area” is shown.
The “current monitoring camera” refers to a monitoring camera that is currently photographing an intruder.
The “monitored area where intruders are expected to progress in the future” refers to important facilities that need to monitor intruder intrusion in the monitored plant facilities, for example, the center that performs monitoring and control of the entire plant. It is a control room, and when this central control room is assumed to be an intruder's final destination, the intruder is a candidate for a monitored area that is expected to proceed in the future in order to head to the central control room.

As shown in FIG. 3A, for example, when the monitoring camera currently photographing the intruder is the monitoring camera 101 installed in the monitoring target area A11, the monitoring that the intruder is expected to proceed in the future is expected. The target areas are a monitoring target area B, a monitoring target area C, and a monitoring target area D.
As described above, in the traveling direction prediction database 202, when the intruder 100 enters any one of the monitoring target areas, the traveling direction information for predicting which monitoring target area the intruder 100 will proceed next is displayed for each monitoring target. The table is set in advance corresponding to the target area, and the intruder's movement direction is detected by performing complicated image processing (motion detection, etc.) on the video signal of the intruder to be photographed as in the past. There is no need.
That is, by using the traveling direction prediction database 202, it is possible to easily and easily predict which monitoring target area the intruder will proceed next.
FIG. 3B shows the correspondence between the “monitoring target area” and the “capable monitoring camera”. For example, the monitoring camera capable of capturing the monitoring target area B is the camera 102.
FIG. 4 is a diagram showing the arrangement of nine display devices constituting the monitoring screen control display device 301 and the flow of video display when tracking an intruder.

Next, the operation will be described.
Assume that an intruder detection device using an infrared sensor or the like for detecting an intruder and a monitoring camera for monitoring an intruder are installed in each monitoring target area of the entire plant facility to be monitored. . Note that the type and mechanism of the intruder detection device are not specified here.
As shown in FIG. 2, for example, when the intruder 100 enters the monitoring target area A <b> 11 and the intruder detection device 111 detects the intruder 100, the monitoring camera 101 capable of photographing the detected intruder 100. Takes a picture of the intruder 100.
Then, the monitoring camera 101 transmits the captured image to the monitoring camera control apparatus 201 via the network 106.
The monitoring camera control device 201 transmits the video transmitted from the monitoring camera 101 to the monitoring screen control display device 301.

The monitoring screen control display device 301 displays on the display device the video of the intruder sent from the monitoring camera 101, thereby notifying the observer that the intruder is present.
In this case, it goes without saying that a warning sound may be generated or the display screen may be changed to alert the supervisor.
Further, the monitoring screen control display device 301 is connected to the traveling direction prediction database 202, and transmits the identification information of the monitoring camera 101 that is photographing the intruder at that time to the traveling direction prediction database 202.
The traveling direction prediction database 202 uses the identification information of the monitoring camera 101 to derive the monitoring target area (for example, the monitoring target area B) where the intruder 101 is predicted to proceed next.
Furthermore, a monitoring camera (that is, the monitoring camera 102) that can capture the video of the derived progress prediction destination (for example, the monitoring target area B) is derived and transmitted to the monitoring screen control display device 301.

The monitoring screen control display device 301 requests the monitoring camera control device 201 for an image of the monitoring camera 102 that can capture the intruder's predicted traveling direction transmitted from the traveling direction prediction database 202.
The monitoring camera control device 201 transmits the video of the monitoring camera 102 requested by the monitoring screen control display device 301 to the monitoring screen control display device 301.
Then, the monitoring screen control display device 301 displays an image captured by the monitoring camera 102 on the display device.
When there are a plurality of intruder progress prediction destinations, the monitoring screen control display device 301 requests the monitoring camera control device 201 for images of all corresponding monitoring cameras, and the plurality of display devices of the monitoring screen control display device 301 To display each.

FIG. 4A is a diagram illustrating an arrangement example of a plurality of display devices in the monitoring screen control display device 301. As illustrated in FIG. 4A, the monitoring screen control display device 301 includes, for example, a to i. 9 display devices.
Here, the display device e is arranged at the center as shown in the figure, and the display devices a to d and f to i are arranged so as to surround the display device e arranged at the center.
4 (b) to 4 (d) show the flow of video display when tracking an intruder. When an intruder 100 is detected, the monitor screen control is performed as shown in FIG. 4 (b). The video of the intruder 100 is displayed on the display device e arranged in the center of the display device 301, and the video of the predicted destination of the intruder 100 is displayed on the peripheral display devices a to d and the display devices f to i. indicate.

After that, for example, as shown in FIG. 4C, when the intruder proceeds to the monitoring target area displayed on the display device d, the monitor selects the display device d, so that the video of the display device d is displayed. 4 (d), it is displayed on the display device e arranged in the central portion of the monitor screen control display device 301, and the peripheral display devices a to d and f to i An image of a destination where an intruder is predicted to proceed in the future is predicted and displayed in the same manner as the first traveling direction prediction process.
In this way, it is possible to predict the traveling direction of the intruder from the identification number of the surveillance camera that captured the intruder 100, and the reliability of the intruder's tracking work can be improved.
In addition, since it is possible to predict the progress destination, it is possible to take an effective defense system as compared with the case where the travel direction cannot be predicted in advance.

In the above description, the case where there are four surveillance cameras and intruder detection devices is described as an example, but the number of surveillance cameras and intruder detection devices is not limited to four.
The number of display devices of the monitoring screen control display device 301 has been described as an example, but the number is not limited to this, and the number of display devices may be nine or three in a straight line. It may be one or five.

  As described above, the tracking-type monitoring system according to the present embodiment is a tracking-type monitoring system that detects and tracks an intruder into a plant facility in which a plurality of monitoring target areas are set. A plurality of monitoring cameras (101, 102, 103, 104,...) That are installed corresponding to each of the target areas (11, 12, 13, 14,...) And photograph the corresponding monitoring target area. A plurality of intruder detection devices (111, 112, 113, 114,...) Installed corresponding to each of the plurality of monitoring target areas and detecting the intruder 100 into the corresponding monitoring target area; A monitoring screen is composed of a plurality of display devices (ai) that respectively display images captured by the monitoring camera, and the monitoring camera images displayed on the monitoring screen display device are visually recognized. Based on the request from the monitor screen control display device 301 and the monitor screen control display device for the monitor of the plant equipment to monitor and track the intruder, the photographing operation of the plurality of monitoring cameras is controlled and photographed. The monitoring camera control device 201 that transmits the video of the monitoring camera to the monitoring screen control display device, and when the intruder enters one of the monitoring target areas, predicts to which monitoring target area the intruder proceeds next The traveling direction information includes a traveling direction prediction database 202 set in advance corresponding to each monitoring target area, and the monitoring screen control display device is photographed by a monitoring camera installed in the monitoring target area where an intruder is detected. The video to be displayed is displayed on a display device arranged in the center of the monitoring screen, and is set in the monitoring target area of the intruder's predicted travel direction based on the travel direction prediction database. It has been that the monitoring cameras are so as to be displayed on the display device arranged around the display device arranged video in the central portion to be photographed.

Therefore, according to the present embodiment, when the intruder has entered one of the monitoring target areas, the traveling direction information that predicts which monitoring target area the intruder will proceed next and enters is preset. By using the traveling direction prediction database, it is not necessary to perform the complicated image signal processing of processing the video signal captured by the surveillance camera and predicting the intruder's movement as in the past, and the traveling direction of the intruder. (A monitoring target area where an intruder enters next) can be easily predicted, and a tracking type monitoring system that can reliably detect and track an intruder can be realized with a simple configuration and at a low cost. Can do.
In addition, since it is possible to predict the arrival location (the next monitored area to enter) before the intruder reaches the next monitored area, appropriate monitoring is performed in advance in the next monitored area. In addition to being able to establish a system, it is possible to take an effective defense system as compared to the case where the traveling direction cannot be predicted in advance.

In addition, the monitoring screen control display device 301 of the tracking type monitoring system according to the present embodiment corresponds to the monitoring target area where the intruder has newly invaded when the intruder moves and enters the next monitoring target area. The video taken by the installed surveillance camera is always displayed on the display device arranged at the center of the surveillance screen.
Therefore, since the video of the monitored area where the intruder is invading is displayed on the central display device of the monitoring screen control display device that is most easily monitored, the inspector can more reliably monitor and track the intruder. can do.

Embodiment 2. FIG.
The progress direction prediction database of the tracking type monitoring system according to the present embodiment has the progress prediction accuracy information set based on the importance of the equipment in the monitored area and the distance information from the current position of the intruder to the equipment. Is further added.
FIG. 5 shows an example of a database added in the present embodiment.
It is assumed that the intruder 100 is currently invading a certain monitoring target area.
In this case, for example, FIG. 5 shows that the probability that the intruder 100 proceeds to the monitoring target area A (that is, the progress prediction accuracy) is 90%, the probability that the intruder 100 proceeds to the monitoring target area B is 80%, and the intruder It is shown that the probability that 100 progresses to the monitoring target area D is 20%.
As will be described later, the progress prediction accuracy is calculated based on the evaluation value of the importance of the equipment and the evaluation value of the distance from the position where the intruder is present to the equipment.

FIG. 6 is a diagram for explaining a method of calculating the progress prediction accuracy, and is a diagram of the construction part in the monitoring target plant facility as viewed from above.
In the figure, 100 is an intruder, 410 is a building 1, 411 is an important monitoring facility (1) installed in the building 1, 420 is a building 2, and 421 is an important monitoring facility (2) installed in the building 2. ) 430 is a building 3 where no important monitoring facilities are installed.
The progress prediction accuracy is based on the importance of the equipment installed in the building and the distance from the current location of the intruder to the heavy monitoring equipment (i.e., the important monitoring equipment is installed from the monitored area where the intruder currently intrudes). The distance to the monitored area).
For example, when there is a monitoring target area where the intruder 100 may proceed in the future, the importance of equipment in the monitoring target area assumed to intrude and the distance from the current location of the intruder 100 to the equipment (that is, The distance from the monitoring target area where the intruder is currently present to the monitoring target area where intrusion is expected in the future is defined by 10-level evaluation values.
The importance of the equipment is 10 for the highest importance and 1 for the lowest importance, and the distance to the equipment is 10 for the shortest and 1 for the longest.

As shown in FIG. 6, the important monitoring facility (1) is now installed in the building 1, and the monitoring target area for monitoring this important monitoring facility (1) is the monitoring target area C, and the important monitoring facility ( The evaluation value of the importance of 1) is “7”, and the evaluation value of the distance from the monitoring target area where the intruder 100 is present to the monitoring target area C where the important monitoring facility (1) is installed is “8”. And
In this case, the progress prediction evaluation value that the intruder 100 progresses to the monitoring target area C is “15 (= 7 + 8)” obtained by adding the evaluation values of importance and distance.
Moreover, the important monitoring equipment (2) is installed in the building 2, and the monitoring target area for monitoring this important monitoring equipment (2) is the monitoring target area D, and the evaluation value of the importance of the important monitoring equipment (2) Is “3”, and the evaluation value of the distance from the monitoring target area where the intruder 100 is present to the monitoring target area D where the important monitoring facility (2) is installed is “4”.
In this case, the progress prediction evaluation value that the intruder 100 progresses to the monitoring target area D is “7 (= 3 + 4)” obtained by adding the evaluation values of importance and distance.

The progress prediction accuracy value (%) shown in FIG. 5 corresponds to the progress prediction evaluation value calculated as described above. For example, the progress prediction evaluation value for the management target area C is 15. The progress prediction accuracy that the intruder progresses to the management target area C is 80%, and when the progress prediction evaluation value to the management target area D is 7, the prediction accuracy that the intruder progresses to the management target area C is 20%. Is set.
If necessary, the progress prediction evaluation value may be calculated by weighting each evaluation value of importance and distance, and the progress prediction accuracy may be obtained based on this.

  As described above, the traveling direction prediction database of the tracking type monitoring system according to the present embodiment is based on the importance of the equipment in the monitored area and the distance information from the current location of the intruder to the equipment. Since the prediction accuracy information is added, the number of monitoring target areas predicted to be invaded by the intruder exceeds the number of display devices constituting the monitoring screen of the monitoring screen control display device 301. Even in this case, it is possible to preferentially display the video of the monitoring camera installed in the monitoring target area with a high accuracy of prediction of the progress on the monitoring screen control display device 301, further increasing the reliability of the intruder tracking work. Can be improved.

Embodiment 3 FIG.
The traveling direction prediction database of the tracking type monitoring system according to the present embodiment is characterized in that importance level information of equipment in the monitoring target area is added.
FIG. 7 shows an example of a database added in the present embodiment.
As shown in the figure, in the traveling direction prediction database according to the present embodiment, importance level information of equipment in each monitoring target area (that is, display information for displaying that the equipment is important) is added. .
In this case, for example, FIG. 7 shows that the heavy monitoring facility corresponding to the monitoring target area A is the heavy monitoring facility (1) and the heavy monitoring facility (2), and the heavy monitoring facility corresponding to the monitoring target area B is the heavy monitoring facility (1 ), The heavy duty monitoring equipment corresponding to the monitoring target area C is the heavy duty monitoring equipment (1), the heavy duty monitoring equipment corresponding to the monitoring target area D is the heavy duty monitoring equipment (2), and the heavy duty monitoring equipment corresponding to the monitoring target area E is heavy. It shows that it is a monitoring facility (2).
The important monitoring facility is an important facility that should be particularly protected among the plant facilities to be monitored.

FIG. 8 is a diagram for explaining the relationship between the monitoring target area and the heavy duty monitoring facility in the plant facility, and is a view of the construction part in the monitoring target plant facility as viewed from above.
In the figure, 100 is an intruder, 410 is a building 1, 411 is an important monitoring facility (1) installed in the building 1, 420 is a building 2, and 421 is an important monitoring facility (2) installed in the building 2. ) 430 is a building 3 where no important monitoring facilities are installed.
The monitoring target area B and the monitoring target area C are assumed to be entrances and exits of the building 1 in which the important monitoring facility (1) is installed.
In this case, the important monitoring facility associated with the monitoring target area B and the monitoring target area C is the important monitoring facility (1). Similarly, the important monitoring facility associated with the monitoring target area D is the important monitoring facility (2).
Reference numerals 101 to 104 denote monitoring cameras that shoot the monitoring target areas A to D, respectively.
Moreover, the important monitoring equipment currently matched with the monitoring object area A where the intruder 100 invades is the important monitoring equipment (1) and the important monitoring equipment (2).

FIG. 9 is a diagram for explaining an example of a display screen displayed on the display device of the monitoring screen control display device 301 in the present embodiment.
In the first embodiment, the monitoring screen control display device 301 displays the video of the monitoring camera installed in the monitoring target area where the intruder 100 is invading on the display device e in the central portion of the monitoring screen, and in the future. The video of the monitoring camera installed in the monitoring target area that is predicted to proceed is displayed on the display devices around the display device e.
In the present embodiment, not only this, but also when there is a heavy monitoring facility in the monitoring target area that is expected to proceed in the future, the monitoring screen control display device 301 displays based on the added database. Information indicating that there is a heavy monitoring facility is displayed on the video displayed on the display device around the device e.
For example, as shown in FIG. 9, an image of a monitoring target area that an intruder is expected to proceed next is displayed on the display device d, and the monitoring equipment (1) that is predicted to proceed is used in the monitoring target area that is predicted to proceed. Is installed, the monitoring screen control display device 301 has the heavy monitoring equipment (1) as a telop next to the display location of the display device d or in the displayed video based on the added database. The display [for example, “heavy duty monitoring equipment (1)”] is made to make the monitor recognize that there is.

As described above, the progress direction prediction database of the tracking type monitoring system according to the present embodiment according to the present embodiment indicates that the importance level information of equipment in the monitored area (that is, the equipment is a heavy monitoring equipment). (Information to represent) has been added.
Therefore, not only the image of the monitoring target area where the intruder 100 is predicted to proceed next, but also when the heavy monitoring equipment is installed in the monitoring target area, information indicating that there is the heavy monitoring equipment is displayed at the same time. The monitoring person can take an appropriate defense system before the intruder 100 reaches the important monitoring equipment.

Embodiment 4 FIG.
In the tracking type monitoring system according to the present embodiment, when a plurality of intruders enter different monitoring target areas, the monitoring screen control display device divides the monitoring screen into a plurality of divided screens configured by a plurality of display devices. In addition, each intruder can be tracked simultaneously on each divided screen.
In the present embodiment, the monitoring screen control display device 301 displays a video of a monitoring camera installed in a monitoring target area (for example, monitoring target area A) in which a plurality of (for example, three) intruders are detected. Since the operation until the image is displayed on the display device e arranged in the central part of the screen is the same as that in the first embodiment, the description thereof is omitted.

FIG. 10 is a diagram for explaining the operation of the tracking type monitoring system according to the fourth embodiment.
In the figure, 100a, 100b, and 100c are intruders, respectively. At first, three intruders entered the monitoring target area A at the same time. An example in the case of entering the monitoring target area B, the monitoring target area B, and the monitoring target area C separately will be described.
As in the case of the first embodiment, it is assumed that the monitoring screen of the monitoring screen control display device 301 is composed of, for example, nine display devices a to i.
FIG. 11 is a diagram showing the arrangement of nine display devices constituting the monitoring screen control display device 301 and the flow of video display when tracking a plurality (three people) of intruders.

Fig.11 (a)-FIG.11 (c) have shown the flow of the video display at the time of tracking a several intruder.
When three intruders (100a to 100c) intruding into the monitoring target area A are detected, as shown in FIG. 11A, the display device e arranged at the central portion of the monitoring screen control display device 301 The images of the three intruders taken by the monitoring camera 101 installed in the monitoring target area A are displayed, and the three display devices a to d and the display devices f to i in the vicinity thereof are displayed. Displays the video of the intruder's progress prediction destination.
Thereafter, as shown in FIG. 10, it is assumed that the intruder 100a enters the monitoring target area B, the intruder 100b enters the monitoring target area C, and the intruder 100c enters the monitoring target area D.

FIG. 11B shows a state of video display on the monitoring screen of the monitoring screen control display device 301 at this time. For example, the video of the monitoring camera 102 that captured the intruder 100a is displayed on the display device b. The video of the surveillance camera 103 that captured 100b is displayed on the display device d, and the video of the surveillance camera 104 that captured the intruder 100c is displayed on the display device i.
Here, for example, the monitoring screen of the monitoring screen control display device 301 configured by nine display devices a to i is divided into three divided screens corresponding to three intruders.
In the figure, reference numeral 311 denotes a divided screen (1) composed of display screens of three display devices a to c, and 312 denotes a divided screen (2) composed of display screens of three display devices d to f (313). Is a divided screen (3) composed of display screens of three display devices g to i.
In the present embodiment, the monitoring screen control display device 301 always displays on the central display device the video in which the intruder is photographed in the plurality of divided screens.

For example, as shown in FIG. 11 (c), in the divided screen (1), the video in which the intruder is photographed is displayed on the display device b which is the display device in the center of the divided screen (1), and divided. In the screen (2), the video in which the intruder is photographed is displayed on the display device e, which is the central display device of the split screen (2), and in the split screen (3), the intruder is photographed. The displayed video is displayed on the display device h which is a display device in the center of the divided screen (3).
In this way, even if the intruder moves on each divided screen, the video image of the intruder is always displayed on the display device at the center of the divided screen.
In the above description, the case where the number of divided screens is three has been described. However, the number of divided screens is not limited to this. You only have to set it.
Further, the number of display devices constituting the divided screen is not limited to three.

As described above, in the tracking type monitoring system according to the present embodiment, when a plurality of intruders enter different monitoring target areas, the monitoring screen control display device 301 is configured by a plurality of display devices. The screen is divided into a plurality of split screens, and each intruder can be tracked simultaneously on each split screen.
Therefore, even when a plurality of intruders proceed to the monitoring target areas in different directions, the intruders can be tracked reliably at the same time.

Embodiment 5. FIG.
In the first to fourth embodiments described above, the tracking of the intruder by the intruder's travel destination prediction using the travel direction prediction database has been described. However, since the intruder has moved in a direction other than the predicted direction, It is also possible that the observer loses sight of the intruder and fails to track the intruder.
The tracking type surveillance system according to the present embodiment can track the intruder by going back to the point of losing sight of the intruder even if the intruder fails to track using the recorded video stored in each surveillance camera. It is characterized by doing so.
FIG. 12 is a diagram for explaining the flow of the tracking work in the tracking type monitoring system according to the present embodiment.
In the figure, FIG. 12A shows the state of the monitoring screen before losing sight of the intruder, and shows the situation when the intruder is being tracked by the method of the first embodiment.
At this time, as shown to Fig.12 (a), the image | video of an intruder is displayed on the display apparatus e of the center part, and when the intruder 100 advances to the display apparatuses ad and the display apparatuses fi. An image of a monitoring camera installed in the predicted monitoring target area is displayed.

FIG. 12B shows the state of the monitoring screen when the intruder 100 is lost. No image of the intruder 100 is displayed on any display device. The time when the intruder 100 is lost is defined as time _TL .
FIG. 12C shows the state of the monitoring screen when searching for an intruder 100 that has been lost once. Since the intruder 100 has not yet been discovered, any display device is used as in FIG. In addition, the video image of the intruder 100 is not displayed.
At this time, the recording recorded at the time _TL when the intruder 100 is lost by all the monitoring cameras in the monitoring target plant facility including the monitoring cameras installed in the monitoring target area other than the progress prediction destination. The video is displayed on the display device constituting the monitoring screen of the monitoring screen control display device 301.
The display order on the monitoring screen control display device 301 gives priority to the recorded video of the monitoring camera in the monitoring target area close to the installation location of the monitoring camera that has finally confirmed the intruder.

FIG. 12D shows a state when the inspector finds the intruder 100 once lost.
In FIG. 12D, a recorded video of time _TL when the intruder 100 is lost is displayed on the display device f.
The monitor selects the recorded video on the display device f, thereby displaying the selected recorded video on the central display device e as shown in FIG. In d and the display devices f to i, the recorded video of the monitoring target area where the intruder 100 is predicted to proceed after the time _TL is displayed.
By repeating this operation, the intruder 100 is tracked within the past time.

FIG. 12E shows a state when the intruder 100 that has been lost is found in real time.
The tracking of the intruder within the past time using the recorded video ends when the video of the progress prediction monitoring target area displayed on the display devices a to d and the display devices f to i becomes real time.
Thereafter, the intruder is tracked in real time by the method of the first embodiment.
If the intruder detection device functions and the surveillance camera can rediscover the intruder 100 once lost, tracking may be performed from the state by the method of the first embodiment.

  As described above, the tracking type surveillance system according to the present embodiment uses the recorded video stored in each surveillance camera to go back to the time when the intruder is lost even if tracking of the intruder fails. Since the intruder can be tracked, the intruder can be tracked even if the intruder tracking fails.

  The present invention is useful for realizing a tracking type monitoring system that can easily and reliably perform intruder detection and tracking without performing complicated signal processing such as image processing.

It is a figure which shows the system configuration | structure of the tracking type monitoring system which concerns on this invention. FIG. 6 is a diagram for explaining the operation of the tracking type monitoring system according to the first embodiment. In Embodiment 1, it is a figure which shows an example of the database set to the advancing direction prediction database. In Embodiment 1, it is a figure showing the arrangement | positioning of the display apparatus which comprises the monitoring screen control display apparatus, and the flow of the video display at the time of tracking an intruder. In Embodiment 2, it is a figure which shows an example of the database added to a advancing direction prediction database. In Embodiment 2, it is a figure for demonstrating the calculation method of progress prediction accuracy. In this Embodiment 3, it is a figure which shows an example of the database added to a advancing direction prediction database. In Embodiment 3, it is a figure for demonstrating the relationship between the monitoring object area in plant equipment, and the heavy monitoring equipment. In Embodiment 3, it is a figure for demonstrating the example of the display screen displayed on the monitoring screen control display apparatus. FIG. 10 is a diagram for explaining the operation of a tracking type monitoring system according to a fourth embodiment. In Embodiment 4, it is a figure showing the flow of the video display at the time of tracking a several intruder. FIG. 10 is a diagram for explaining a flow of tracking work in a tracking type monitoring system according to a fifth embodiment.

Explanation of symbols

11-14 Monitoring target area 100 Intruder 101-104 Monitoring camera 111-114 Intruder detection apparatus 106 Monitoring camera network 201 Monitoring camera control apparatus 202 Progression direction prediction database 301 Monitoring screen control display apparatus ai Display apparatus

Claims (6)

A tracking type monitoring system that detects and tracks an intruder into a plant facility in which multiple monitoring target areas are set,
A plurality of monitoring cameras installed corresponding to each of the plurality of monitoring target areas and photographing the corresponding monitoring target area;
A plurality of intruder detection devices installed corresponding to each of the plurality of monitoring target areas and detecting intruders in the corresponding monitoring target area;
A monitoring screen is composed of a plurality of display devices that respectively display images captured by the plurality of monitoring cameras, and a plant facility monitor can visually recognize the monitoring camera images displayed on the display device of the monitoring screen. A monitoring screen control display device for monitoring and tracking intruders;
Based on a request from the monitoring screen control display device, the monitoring camera control device controls the shooting operation of the plurality of monitoring cameras, and transmits the captured video of the monitoring camera to the monitoring screen control display device;
When the intruder enters one of the monitoring target areas, the traveling direction information that predicts which monitoring target area the intruder will proceed next is set in advance for each monitoring target area. With a forecast database,
The monitoring screen control display device displays an image captured by a monitoring camera installed in a monitoring target area where an intruder has been detected on a display device arranged in a central portion of the monitoring screen, and is based on the traveling direction prediction database. A tracking type monitoring system, wherein an image taken by a monitoring camera installed in a monitoring target area in an intruder progress prediction direction is displayed on a display device arranged around the display device arranged in the central portion.   When the intruder moves and intrudes into the next monitoring target area, the monitoring screen control display device always captures images taken by the monitoring camera installed corresponding to the monitoring target area where the intruder newly invades. The tracking type monitoring system according to claim 1, wherein the tracking type monitoring system is displayed on a display device arranged in the central portion.   The progress direction prediction database is characterized in that progress prediction accuracy information based on importance of equipment in the monitored area and distance information from a position where an intruder is present to the equipment is added. Or the tracking type monitoring system according to 2;   The tracking type monitoring system according to claim 1 or 2, wherein importance information of facilities in the monitoring target area is added to the traveling direction prediction database.   When a plurality of intruders enter different monitoring target areas, the monitoring screen control display device divides the monitoring screen into a plurality of divided screens configured by a plurality of display devices, and each intrusion screen has an individual intrusion. The tracking type monitoring system according to any one of claims 1 to 4, wherein a person can be tracked simultaneously.   2. The intruder can be tracked back to the point of losing sight of the intruder even when the intruder tracking fails using the recorded video stored in each surveillance camera. The tracking type monitoring system according to any one of?

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