JPH11239336A - Supervisory system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a system with an enhanced operability where emphasis is placed on monitoring at night by displaying a video image from a 1st camera group on a 1st monitor and displaying a video image from a 2nd camera group on a 2nd monitor at daytime respectively and displaying the video image from the 1st camera group selected optionally on the 1st and 2nd monitors respectively at night. SOLUTION: A control operation section 6 is operated to control a matrix video switcher 3 as in the conventional systems in daytime so as to select N sets of video signals from an optional camera requiring monitoring in a 1st camera group 1. Then a 1st N division display 41 divides the video signals into N images and they are displayed on a 1st monitor 51. N sets of video signals are selected and outputted from an optional camera requiring monitoring from a 2nd camera group 2 and a 2nd N division display 42 divides the signals into N images. At night, an image recognition device 7 recognizes night and the video signals selected and preset are automatically displayed on the monitors 51, 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance system, and more particularly to a surveillance system capable of monitoring and displaying video signals from a camera installed at a place where nighttime monitoring is required.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a surveillance system has a first camera group 1 (11, 1
.. 1n), a second camera group 2 (21, 22,... 2n) requiring monitoring only in the daytime, and a plurality of video signals from the first camera group 1 are input. A fourth matrix video switcher 34 for selecting N arbitrary video signals from the plurality of video signals and outputting a first video signal group;
Receiving a plurality of video signals from the second camera group 2;
A fifth matrix video switcher 35 for selecting N arbitrary video signals from the plurality of video signals and outputting a second video signal group, and a first video output from the fourth matrix video switcher 34 A first N-divided display device 41 that receives a signal group and outputs a signal for dividing and displaying the same N video signals on the same screen, and a fifth N-video display device output from the fifth matrix video switcher 35 A second N-divided display device 42 for inputting two video signal groups and outputting a signal for dividing and displaying the same N video signals on the same screen, and the first N-divided display device 41
A first monitor 51 for displaying an N-divided display signal from
A second monitor 52 for displaying an N-divided display signal from the second N-divided display device 42; a fourth matrix video switcher 34, a fifth matrix video switcher 35, and a first N-divided display device 41; And the control / operation unit 6 for controlling the second N-divided display device 42 and the like. The video from the first camera group 1 is displayed on the first monitor 51 both day and night, and the second monitor 52 is displayed on the second monitor 52. The images from the camera group 2 are displayed. For this reason, since it is not necessary to monitor the video from the second camera group 2 at night at night, the second camera group 2 and the second monitor 52 are not required.
Was turned off to prevent use. However, when there are many cameras installed in places where monitoring at night is required, the number of cameras that can be displayed and monitored on the first monitor 51 is limited to an arbitrary N number. In order to monitor the image, the control / operation unit 9 is operated to
The camera to be selected by the matrix video switcher 31 must be changed, which not only complicates the operation,
There is a problem that the time for monitoring the same place is shortened.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and it is necessary to perform nighttime monitoring on a second monitor which displays images from a second camera group which does not need to be monitored at nighttime. It is an object of the present invention to provide a surveillance system that enables night-weighted surveillance by displaying an image from a first camera group having a high degree of operability.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by providing a first camera group requiring day and night surveillance;
A second camera group requiring monitoring only during the day and a plurality of video signals from the first camera group and the second camera group are input, and N video signals are output from the plurality of video signals. A first matrix video switcher for selecting a first video signal group and outputting a second video signal group,
A first video signal group or a second video signal group output from the matrix video switcher is input, and the first N video signals are divided and displayed on the same screen. An N-split display device and a second N-split display device, and the first N-split display device and a second N-split display device
A first monitor and a second monitor for displaying an N-divided display signal from the divided display device, and control and operation for controlling the matrix video switcher, the first N-divided display device, the second N-divided display device, and the like. In the daytime, the image from the first camera group is displayed on the first monitor on the first monitor, and the image from the second camera group is displayed on the second monitor, and the first monitor and the second monitor are displayed at night. The surveillance system is capable of arbitrarily selecting and displaying images from the first camera group on a monitor.

A first group of cameras requiring day and night monitoring;
A plurality of video signals from the second camera group requiring monitoring only in the daytime and the first camera group are input, and an arbitrary video signal is selected from the plurality of video signals by N and the first is selected. A first matrix video switcher for outputting a video signal group and a second video signal group, and a plurality of video signals from the second camera group, and N arbitrary video signals from the plurality of video signals; A second matrix video switcher for selecting and outputting a third video signal, and a first video signal group or a second video signal group output from the first matrix video switcher, and A first N-split display device and a second N-split display device that output signals for dividing and displaying the video signals on the same screen,
A third N-divided display device that receives a third video signal group output from the second matrix video switcher, and outputs a signal for dividing and displaying the same N video signals on the same screen; A first monitor for displaying an N-split display signal from the first N-split display, and a video for selectively outputting N-split display signals from the second N-split display and the third N-split display; A switcher, a second monitor for displaying an N-split display signal from the video switcher, the first matrix video switcher, a second matrix video switcher, a first N-split display device, and a second N-split display. Device, a third N-divided display device, a control / operation unit for controlling a video switcher, etc., in the daytime, images from the first camera group are displayed on the first monitor, and second cameras are displayed on the second monitor. Group Images were displayed respectively at night was monitoring system can display each image from the first camera group arbitrarily selected in the first monitor and a second monitor.

[0006] Between the second camera group and the first matrix video switcher, a plurality of video signals from the second camera group are input to select and output N video signals. The surveillance system was implemented by interposing a matrix video switcher.

[0007] An image recognition device for recognizing day or night from the video signal of the N-division display signal from the second N-division display device is provided. An image from the first camera group is arbitrarily selected on the second monitor and the second monitor, and the monitor is controlled so as to be displayed.

A monitoring system is provided in which the image recognition device recognizes day or night based on the color or brightness of the sky.

[0009]

As described above, in the surveillance system according to the present invention, the first camera group that requires day and night monitoring, the second camera group that requires only daytime monitoring, and the first camera group A plurality of video signals from the camera group and the second camera group are input, and an arbitrary video signal is selected from each of the plurality of video signals by N for each of the first video signal group and the second video signal group. And a first video signal group or a second video signal group output from the first matrix video switcher, which outputs the same N video signals on the same screen. A first N-divided display device and a second N-divided display device for outputting a signal to be divided and displayed.
A split display device, the first N-split display device and the second
Displaying an N-divided display signal from the N-divided display device
And a second monitor, and a control / operation unit for controlling the matrix video switcher, the first N-split display device, the second N-split display device, and the like.
The video from the first camera group is displayed on the second monitor, and the video from the second camera group is displayed on the second monitor. During the night, the first and second monitors display the video from the first camera group. An image can be arbitrarily selected and displayed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A monitoring system according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a system block diagram showing one embodiment of a monitoring system according to the present invention. In the figure, 1 (11, 12,... 1n) is a first camera group that requires monitoring day and night, and 2 (21, 22,... 2n) is a second camera group that requires monitoring only daytime. is there. Reference numeral 3 denotes a matrix video switcher, and 31 inputs a plurality of video signals from the first camera group 1 and the second camera group 2 and selects any N video signals from the plurality of video signals. A first matrix video switcher that outputs a first video signal group and a second video signal group. 4
1, 42 are the first matrix video switchers 3
A first video signal group or a second video signal group output from the first 1 and a first N-division display for outputting a signal for dividing and displaying the same N video signals on the same screen; Device and a second N-divided display device. 51, 52
Are first and second monitors for displaying N-divided display signals from the first N-divided display device 41 and the second N-divided display device 42. Reference numeral 6 denotes a control / operation unit for controlling the first matrix video switcher 31, the first N-split display device 41, the second N-split display device 42, and the like. Reference numeral 7 denotes an image recognition device for recognizing day or night from the video signal of the N-divided display signal from the second N-divided display device 42. When the image recognition device 7 recognizes the night, the control unit 6 controls the first monitor 51 and the second monitor 52 to arbitrarily select and display images from the first camera group 1 respectively. ing. The image recognition device 7 monitors the sky and recognizes the night when the color tone approaches black or the brightness decreases.

When the number of cameras is large and the number of input terminals of the first matrix video switcher 31 is insufficient, as shown by the dotted line in FIG. 1, the third matrix video switcher 32 is connected to the second camera group. 2 and the first matrix video switcher 31, the number of cameras input to the first matrix video switcher 31 is increased.

FIG. 2 is a system block diagram showing another embodiment of the monitoring system according to the present invention. In the case of this embodiment, as shown in FIG. 3, a video signal from the first camera group 1 is input to a first matrix video switcher 31, and a first video from the first matrix video switcher 31 is input. The signal group is input to a first N-divided display device 41, and the second video signal group is input to a second N-divided display device. Further, the video signal from the second camera group 2 is input to the third N-divided display device 43 through the second matrix video switcher 33, and the third N-divided display device 4
The video signal from the second camera group 2 is displayed on the second monitor 52 in the daytime by switching the N-divided signal from the third camera 3 and the N-divided signal from the second N-divided display device 42 by the video switcher 8. At night, the video signal from the first camera group 1 is selectively displayed.

Next, the operation of the above configuration will be described with reference to the embodiment of FIG. In the daytime, the user operates the control operation unit 6 to operate the matrix video switcher 3 as in the past.
And selects and outputs N video signals from any camera that needs monitoring from the first camera group 1, and outputs the first N
The first monitor 51 is divided into N screens by the divided display device 41.
, And N video signals from an arbitrary camera requiring monitoring are selected and output from the second camera group 2, and divided into N screens by the second N-divided display device 42.
And display on the monitor 52 of each of them.

Similarly, at night, the control operation unit 6 is operated to control the matrix video switcher 3, and the video signal of the second camera group 2 which does not need to be monitored at night is not selected.
(N + N) video signals from the cameras that need to be monitored at night in the first camera group are selected, and
N divided display device 41 and second N divided display device 42
By dividing the screen into screens and displaying them on the first monitor 51 and the first monitor 52, it is possible to focus on a place requiring nighttime monitoring.

The first monitor 51 and the second monitor 51
By selectively setting a video signal from the first camera group 1 or the second camera group 2 displayed on the monitor 52 during the daytime and a video signal from the first camera group 1 displayed on the nighttime, the image is displayed. The recognition device 7 can recognize day or night, and can automatically select a video signal from a camera set corresponding to day or night and display it on the first monitor 51 and the second monitor 52.

The embodiment of FIG. 2 can be easily understood by referring to the embodiment of FIG.

[0017]

As described above, according to the surveillance system according to the present invention, the first camera group requiring day and night monitoring, the second camera group requiring daytime monitoring only, A plurality of video signals from the camera group and the second camera group are input, and an arbitrary video signal is selected from each of the plurality of video signals by N for each of the first video signal group and the second video signal group. A first matrix video switcher that outputs
Receiving a first video signal group or a second video signal group output from the first matrix video switcher;
A first N-division display device and a second N-division display device that output signals for dividing and displaying the same N video signals on the same screen, and the first N-division display device and the second N-division display device. A first monitor and a second monitor for displaying an N-divided display signal from the N-divided display device, and control for controlling the matrix video switcher, the first N-divided display device, the second N-divided display device, and the like. The first monitor displays video from the first camera group on the first monitor, and the second monitor displays video from the second camera group on the second monitor. By arbitrarily selecting and displaying the video from the first camera group on the monitor of each of them, night-weighted monitoring can be performed.

[Brief description of the drawings]

FIG. 1 is a system block diagram showing one embodiment of a monitoring system according to the present invention.

FIG. 2 is a system block diagram showing another embodiment of the monitoring system according to the present invention.

FIG. 3 is a system block diagram showing a conventional monitoring system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st camera group 2 2nd camera group 3 Matrix switcher 31 1st matrix video switcher 32 3rd matrix video switcher 33 2nd matrix video switcher 41 1st N division display device 42 2nd N division Display device 43 Third N-divided display device 51 First monitor 52 Second monitor 6 Control / operation unit 7 Image recognition device 8 Video switcher

Claims (5)

[Claims] 1. A first camera group requiring day / night monitoring, a second camera group requiring day / night monitoring, and a plurality of video signals from the first camera group and the second camera group. , A first matrix video switcher for selecting an arbitrary number of N video signals from the plurality of video signals and outputting a first video signal group and a second video signal group, A first video signal group or a second video signal group output from the matrix video switcher is input, and the first N video signals are output which divide and display the same N video signals on the same screen. Split display device and second N
A split display device, the first N-split display device and the second
Displaying an N-divided display signal from the N-divided display device
And a second monitor, and a control / operation unit for controlling the matrix video switcher, the first N-split display device, the second N-split display device, and the like.
The video from the first camera group is displayed on the second monitor, and the video from the second camera group is displayed on the second monitor. During the night, the first and second monitors display the video from the first camera group. A surveillance system characterized in that images are arbitrarily selected and displayed. 2. A first camera group that requires day and night monitoring, a second camera group that requires only day and night monitoring, and a plurality of video signals from the first camera group are input. A first matrix video switcher for selecting an arbitrary number of video signals from N video signals and outputting a first video signal group and a second video signal group, and a plurality of video signals from the second camera group. A second signal for inputting a signal, selecting N arbitrary video signals from the plurality of video signals, and outputting a third video signal;
And a first video signal group or a second video signal group output from the first matrix video switcher, and the N video signals are divided on the same screen, respectively. A first N-divided display device and a second N-divided display device for outputting a signal to be displayed, and a third video signal group output from the second matrix video switcher, and the same N video signals Is output on the same screen as a third N
A split display device, a first monitor for displaying an N-split display signal from the first N-split display device, and an N-split display signal from the second N-split display device and a third N-split display device And a second monitor for displaying an N-divided display signal from the video switcher.
A control / operation unit for controlling the first matrix video switcher, the second matrix video switcher, the first N-split display device, the second N-split display device, the third N-split display device, the video switcher, etc. In the daytime, the image from the first camera group is displayed on the first monitor, and the image from the second camera group is displayed on the second monitor, and the images are displayed on the first monitor and the second monitor at night. A surveillance system wherein an image from a first camera group is arbitrarily selected and displayed. 3. A method of inputting a plurality of video signals from the second camera group and selectively outputting N video signals between the second camera group and the first matrix video switcher. 2. The surveillance system according to claim 1, wherein said third matrix video switcher is inserted. 4. An image recognition device for recognizing day or night from a video signal of an N-division display signal from the second N-division display device, and when the image recognition device recognizes night, the control unit 3. The surveillance system according to claim 1, wherein an image from the first camera group is arbitrarily selected and displayed on the first monitor and the second monitor, respectively. 5. The surveillance system according to claim 4, wherein said image recognition device recognizes day or night based on sky color or brightness.