JPH0393379A - Camera monitor system - Google Patents

Abstract

PURPOSE:To easily set a display position of a camera device and a display interval time by adopting a menu system for the screen control. CONSTITUTION:In the case of revising the content of a monitored display screen, menu items to be revised are selected according to the indication of a menu picture 16, and designation of the display position of a camera device 6 to be displayed and a display interval time are entered optionally according to the screen command respectively. The succeeding picture display executes the display as indicated by the data input. When a monitor picture of plural monitor cameras is displayed on a display screen split into plural numbers and monitored, the display interval time of each monitor camera device 6 and the display position of each camera device 6 are revised simply and freely in this system.

Description

Detailed Description of the Invention: "Industrial Application Field" The present invention relates to a device that uses a plurality of camera devices to monitor a plurality of monitoring targets, and can easily change the monitoring target, monitoring interval time, etc. Regarding the equipment. ``Prior Art'' Conventionally, when multiple monitoring targets are monitored by installing multiple camera devices, a method is used in which the camera devices are sequentially switched and the images are displayed on a monitor device. The targets were monitored by simultaneously displaying the screens of four camera devices. In conventional display methods using this type of display, when changing the display position of the camera device on the display screen or changing the display interval time, the display position and display contents are strictly determined by the control program. The problem is that corrections are often complicated and sometimes difficult. In addition, the display interval time was set to a fixed time common to each camera device and changed. "Intelligence to be Solved by the Invention" To solve the difficulty of changing the display screen position and display interval time of a camera device, which arose because the display position and display contents were determined by the conventional control program mentioned above. This provides a monitoring system that allows screen control to be controlled through a menu and allows easy setting of the camera device and display interval time. "
``Means for Solving the Problems'' In order to solve the above problems, the present invention provides a plurality of camera devices for monitoring the outside with images, a timer device for counting time, and a manual command system for instruction and control. an input section of
a control section including a storage section for instructing and controlling each of the devices, a video switch circuit section for appropriately switching output signals from the plurality of camera devices based on control signals from the control section, and a display screen connected to the control section; a CRT control section that controls the CRT control section; a control screen storage section that is connected to the CRT control section and stores screen information; and a switch that appropriately switches between the signal from the CRT control section and the signal from the video switch circuit section based on a signal from the control section. an A/D conversion section that converts the image signal from the switch section from analog to digital; an image storage section that stores the signal from the A/D conversion section; and a digital/analog conversion section for the signal read from the image storage section. The present invention provides a camera monitoring system characterized by comprising a D/A converter for converting the D/A converter, and a display unit for displaying and outputting a signal from the D/A converter.

"Operation" Since the present invention is configured as described above, the contents of the display screen to be monitored can be changed by selecting the menu to be changed according to the instructions on the menu screen, then specifying the display position of the camera device to be displayed, and displaying the display interval time. Each can be specified manually according to the on-screen instructions. By inputting this data, subsequent screen displays will be displayed as instructed.
``Example'' The camera monitoring system according to the present invention will be described in detail below based on the drawings. Fig. 1 is a block diagram of the main parts of an embodiment of the camera monitoring system according to the present invention, Fig. 2 shows an example of a menu screen of the camera monitoring system, and Fig. 3 shows an example of settings of the display screen of the camera monitoring system. This is a diagram. In the figure, l is a control unit that instructs and controls the camera monitoring system. Reference numeral 2 denotes an input unit which inputs control signals from a memory medium such as a memory card that stores a control program, etc.
3 is a remote control input unit that receives a control signal from a remote control device (not shown), applies the received signal to the control unit 1, and changes settings such as the display position through the control unit 1. 4 is a storage unit that records the control program of the control unit, input data, etc. 5 is the video switch section,
The image signals from the plurality of camera devices 6 are appropriately switched using a control signal from the control unit 1. 7 is a timer section that measures the display interval time of each display screen and outputs a signal when the set time is reached. Reference numeral 8 denotes a CRTIJI section which successively outputs menu screens etc. stored in the control screen storage section 9 based on control signals from the control section. Reference numeral 10 denotes a switch section which switches and outputs the signal from the CRTmm section and the signal from the video switch section under the control of the control section 1.
Reference numeral 11 denotes a control section of the display device, which responds to control signals from the control section 1 and performs recording control to the image storage section l2 and display control to the display section 15.L3 and 14 are analog/digital and digital/digital control sections. This is the analog conversion section. First of all, in the above-mentioned precepts. The initial screen is specified. FIG. 2 shows the screen in the initial menu mode, where the screen 16 is divided into lines by the opening 17, and displays a single screen display 18, a multi-screen display, a calendar, etc., respectively. Here, when multi-screen display is specified with the cursor, the control unit 1
J? The i1 section 8 is commanded to read the set image data from the control screen storage section 9, and the image data read out by the CRT control section 8 is converted into digital data via the switch section 10 and stored in the image storage section 12. and the image storage unit l2
The data will be updated and the display screen will change to the one shown in Figure 3. Screen 19 shows an example of 9-split screen display, and each screen 2
0 is configured such that an identification number 21 of the camera device 6 and a display interval time 22 can be set respectively. To change the settings, move the cursor 23 and specify as appropriate. To specify, enter the identification number of the camera device 6 for which you wish to set as a numerical value, and then enter the interval time in units of n (minutes are also possible depending on the settings) manually.The camera devices to be input do not need to be in the order of their identification numbers. , may be arranged randomly.Also, the interval time can be freely set as appropriate. For example, for a camera device that monitors a particularly important place, the display interval time can be changed so that the screen changes every 5 seconds. Although not shown, if you instruct one-screen display l8, the next screen will prompt you to enter the identification number of the camera device to be displayed and the display interval time. To complete the setting of the display screen in this way, the control unit I first displays the divided first screen 20 according to the setting conditions.
Select the image signal of camera device 6 set to . Since the screen is a 9-split display, both horizontal and vertical signals are processed into signals compressed to 1/3, switched by the video switch circuit section 5, and output as image signals by controlling the switch section 10. do. Image signal compression processing C
For example, a horizontal signal can be obtained by thinning out to 1/3 after converting it to a digital signal, and a vertical signal can be obtained by thinning out scanning lines to 1/3, but the present invention is not limited to this. do not have. The image signal is converted into a digital signal by the analog/digital converter l3, and is recorded in a predetermined recording area of the image storage part l2 under the control of the controller 11 based on the timing signal from the controller 1. At the same time, the timer 7 is driven to start measuring the interval time of the first screen. Furthermore, the horizontal signal advances and the second screen of the next division (
When the image signal of the set camera device 6 is reached (the center screen in FIG. The signal is output via the switch section 10, converted into a digital signal by the A/D conversion section 13, and recorded in a predetermined storage area of the image storage section 12. Then, in the same way as above, the timer 7 is driven to start measuring the interval time of the second screen. In the same way, all screens are recorded in the screen storage section l2. Note that the storage area of each screen of the image storage unit 12 is specified by dividing the storage area into nine areas in the same way as the display screen.
Although data for each screen is recorded in each area, the invention is not limited to this. To display the recorded screen, the control section 11 reads the recorded data from the screen storage section 12 and outputs it to the display section 15 for display. The control unit 1 constantly monitors the time measurement by the timer unit 7, identifies the recorded screen whose time has expired, and automatically updates the screen information to the latest screen information. That is, the screen information timed up by the timer section 7 acts on the control section 1, and the video switch circuit section 5 switches the image signal from the corresponding camera device 6, controls the switch circuit 10, and performs A/D conversion. The data is processed into a digital signal in the section l3, and the data in the corresponding storage area of the image storage section l2 is rewritten and updated. These data updating functions are automatically performed by appropriately monitoring the setting interval time of each camera device. In addition, when the one-screen display 18 in FIG. 3 is designated, the recorded data in the sleep image storage section 12 is not compressed, but is recorded as it is, for example, as an NTSC signal, and is displayed on the display section 15.

"Effects of the Invention" As explained above, the present invention provides the display interval time of each surveillance camera device and the display of the camera device when monitoring images from a plurality of surveillance cameras are displayed on a plurality of divided display screens. This system provides a system that allows the position to be freely changed and the settings to be changed easily, and has the advantage of being able to monitor particularly important monitoring locations by optimizing the display position and shortening the display interval time. It is.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a main part of an embodiment of a camera monitoring system according to the present invention, FIG. 2 is an example of a menu screen of the camera monitoring system, and FIG. 3 is an example of a selection display screen of the camera monitoring system. This is a diagram. In the figure, l and 11 are control units, 2 is an input unit, 3 is a remote control input unit, 5 is a video switch circuit unit, 6 is a camera device, and 8
1 is a CRT control section, 9 is a control screen storage section, 10 is a switch section, 12 is an image storage section, 13 is an analog/digital conversion section, 14 is a digital/analog conversion section, and 15 is a display section.

Claims (1)

[Claims] Multiple camera devices for monitoring the outside with images,
A control unit includes a timer device for counting time, an input unit for inputting commands for instruction control, and a storage unit for instructing and controlling each of the devices; A video switch circuit section that switches output signals as appropriate; a CRT control section that is connected to the control section and controls the display screen; a control screen storage section that is connected to the CRT control section and stores screen information; and a signal output from the control section. By C
a switch section that appropriately switches between a signal from the RT control section and a signal from the video switch circuit section; an A/D conversion section that converts the image signal from the switch section from analog to digital;
An image storage unit that stores the signal from the A/D conversion unit, a D/A conversion unit that converts the signal read from the image storage unit into digital/analog, and a display unit that displays and outputs the signal from the D/A conversion unit. A camera monitoring system comprising: