JPH0810931B2 - Unattended intrusion monitoring device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an unmanned intrusion monitoring device for unattended intrusion monitoring using a television camera.

[Conventional technology]

FIG. 4 is a block diagram showing a configuration of a conventional unmanned intrusion monitoring device disclosed in, for example, Japanese Patent Laid-Open No. 63-70683, in which 1 is a television camera, 2 is a warning area to be monitored, 3 is an intrusion detection sensor, 4 is an intrusion detection device that detects a signal from the intrusion detection sensor 3, 5 is a transmission / reception device, and 6
Is an information transmission path, 7 is a multiplexer circuit, 8 is a monitor television for displaying intrusion detection information, position information and other fixed information, 9 is a position reading device, 10 is a setting device for inputting fixed information such as intrusion position name, Reference numeral 11 is a memory section, and 12 is a clock section.

 Next, the operation will be described.

When an intruder enters the warning area 2, the intrusion detection sensor 3 detects the intrusion, and the detection signal indicates the intrusion detection device 4
The intrusion detection information is confirmed by performing appropriate signal processing here. Further, this detection information is input to the multiplexer circuit 7 via the transmission / reception device 5 and the information transmission path 6, and the multiplexer circuit 7 selects the image information corresponding to the location where the intrusion is detected from a large number of image information, and selects it from the monitor television. 8 is input and displayed. Based on the position information obtained from the position reading device 9 at this time,
Display and confirm the location where the intrusion was detected. In addition, fixed information such as the time of the memory section 11 and the name of the intrusion position, which is updated by the clock signal from the clock section 12, is displayed on the monitor television 8. The fixed information in the memory unit 11 is input in advance by the setting device 10.

[Problems to be Solved by the Invention]

Since the conventional unmanned intrusion monitoring device is configured as described above, it is necessary to install a large number of intrusion detection sensors 3 in the case where the warning area 2 is large, and the intrusion detection sensor 3 is not affected by the natural environment. However, there was a problem that the detection results in 1) vary and the detection accuracy is not sufficient. In addition, since the television camera 1 operates after an intruder or the like enters the warning area 2 (after the operation of the intrusion detection sensor), there is a problem that the trend of the intruder cannot be confirmed quickly.

The present invention has been made to solve the above-mentioned problems. By only adding one fixed camera, the conventional intrusion detection sensor becomes unnecessary, and the trend of the intruder can be swiftly and reliably obtained. The purpose is to obtain an unmanned intrusion monitoring device that can be confirmed.

[Means for solving the problem]

The unmanned intrusion monitoring device according to the present invention performs intrusion monitoring of an intrusion object into a predetermined monitoring area with one fixed camera,
Further, intrusion monitoring of the intrusion target in the surveillance area in the surveillance area is performed by another plurality of monitoring cameras, and the presence or absence and the position of the intrusion object are detected by the intrusion detection device based on the image signal output by the fixed camera. Then, according to the detection result, the control device selects the surveillance camera to control the angle.

[Action]

The unattended intrusion monitoring device according to the present invention detects an intrusion target such as a suspicious person who may intrude the intrusion detection device before intrusion based on an image signal captured by a fixed camera,
Based on this detection data, the surveillance camera whose angle (direction) is controlled captures the relevant intrusion target and displays it on the monitor TV, and the surveillance camera and intrusion detection device determine whether or not the intrusion target enters the warning area. Make it possible to judge.

Example of Invention

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 2 is a warning area formed by dividing a set area, 4 is an intrusion detection device that performs intrusion detection processing of a video signal from the fixed camera 14 or the surveillance camera 15, 5 is a transmission / reception device for communication, and 6 is An information transmission path, 8 is a monitor television for displaying an image of the fixed camera 14 or the surveillance camera 15, 13 is a surveillance area covering the warning area 2 as shown in FIG. 2, and a surveillance area including the periphery thereof, and 14 is at least a surveillance area. The above-mentioned fixed camera that can capture the whole 13 on one screen, 15 is the above-mentioned surveillance camera that is installed in a key part of the warning area 2 as shown in FIG. 2, and has a mechanism for turning up and down, left and right, 16 is a fixed camera An image switching device that selects image signals from 14 and a plurality of surveillance cameras 15 and outputs them to the intrusion detection device 4, 17 is a control device that controls the intrusion detection device 4 and the image switching device 16, etc., 18 is an alarm display, etc. Operation panel It is.

Further, in FIG. 2, reference numeral 21 is a shelf that separates the warning area (inside the premises) from the outside, and 22 is an entrance gate to the inside of the premises. In this embodiment, an ultra wide-angle lens is used for the fixed camera 14, and since the surveillance area 13 and the outside of the surveillance area 13 are divided, masking processing is performed on the outside of the surveillance area 13 on the intrusion detection device 4 side.
It is excluded from the detection range.

Next, the operation of the present invention will be described based on the flowchart of FIG.

First, the surveillance area 13 including the normal-time caution area 2 is intruded by the fixed camera 14 (step ST1). Therefore, the intrusion detection device 4 receives the image signal from the fixed camera 14 through the image switching device 16. Is entered. Here, when the intrusion detection device 4 detects an intruder (object) into the surveillance area 13 (step ST2), there is a risk of intrusion into the caution area 2, so a preliminary warning that a suspicious person is approaching (Step ST3), the position of the suspicious person is determined by the intrusion detection device 4 (step ST4), and the position information is input to the control device 17. Based on the above information, the control device 17 selects the monitoring camera 15 that can monitor the movement of the suspicious individual and performs visual control of the monitoring camera 15 (step ST
5) Monitor the trend of suspicious persons (whether they enter the premises) (step ST6). At this time, the control device 17 outputs a switching signal to the image switching device 16 and the image signal of the selected surveillance camera 15 is input to the intrusion detection device 4. Therefore, similar to the above, An intrusion detection device monitors whether or not a suspicious person enters the warning area 2 (step
ST7). If a suspicious person enters the warning zone 2, an intrusion warning is issued and the administrator is notified (step
ST8). On the other hand, if a suspicious individual does not enter the warning area 2 within a fixed time (setting formula), after a confirmation by a monitor, a reset operation is performed to return to the monitoring state by the fixed camera 14 (step ST9). . The image displayed on the monitor TV 8 can be taken and stored by a video tape recorder.

In the above embodiment, the camera output selected by the image switching device 16 is input to one intrusion detection device to detect a suspicious person and an intruder. However, for suspicious person detection (fixed camera) Alternatively, a plurality of units may be separately provided for intruder detection (surveillance camera).

〔The invention's effect〕

As described above, according to the present invention, intrusion monitoring of an intruding target into a predetermined monitoring area is performed by one fixed camera, and further, intrusion monitoring of an intruding target in a warning area in the monitoring area is performed by another plurality of devices. The intrusion detection device detects the presence or absence and the position of the intrusion object based on the image signal output by the fixed camera, and according to the detection result, the control device selects the surveillance camera to control the angle. With this configuration, unmanned monitoring accuracy can be improved, and the trend of an intruder can be grasped at an early stage so that a quick response can be taken. Further, since it is not necessary to provide an intrusion detection sensor, there is an effect that the device can be simplified and the cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of an unmanned intrusion monitoring system according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a camera installation situation in a surveillance area according to an embodiment of the present invention. FIG. 3 is a flow chart for explaining the operation of the unmanned intrusion monitoring system according to one embodiment of the present invention, and FIG. 4 is a block diagram showing the configuration of the conventional unmanned intrusion monitoring system. 2 is a warning area, 13 is a surveillance area, 14 is a fixed camera, 15 is a surveillance camera, and 17 is a control device. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A fixed camera for monitoring intrusion of an intruding target into a predetermined monitoring area, and a plurality of monitoring cameras for monitoring intrusion of an intruding target in a security area set in the monitoring area. An intrusion detection device that detects the presence or absence of an intrusion target and a position based on an image signal output by the fixed camera; and a control device that selects the surveillance camera and performs angle control based on the detection output from the intrusion detection device. Unattended intrusion monitoring device.