JP2004355391A - Large screen supervision and control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a large screen supervision and control system that allows simultaneously viewing an ITV animation and a graphic supervision screen. <P>SOLUTION: The graphic supervision screen 2 of a size encompassing n-screens for grasping the state of a plant by means of the multiscreen controller 12 of a 1-CPU computer, and image display windows 301-309 are provided. Plant state signals are sent from an n-screen output graphic board 1201 via image synthesizing devices 501-503 to the supervision screen 2 for display thereon. NTSC signals from ITV devices 801-803 are converted to RGB signals via an image switching device 6 and synthesized with the state signals by the image synthesizing devices 501-503. The ITV animation converted to RGB is depicted in corresponding image display windows 301-309 by hard overlay method, at the front of the supervision screen 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a large screen monitoring control system in plant monitoring control.
[0002]
[Prior art]
Monitoring and control systems for water and sewage, power substations, power systems, steelworks, industry, traffic, etc. often use large screens for plant monitoring.
[0003]
As described in Patent Documents 1 and 2, the conventional apparatus has a system in which a plurality of CPUs are provided in accordance with the resolution in order to draw an image on a plurality of large screens. In addition, in order to monitor a moving image such as an ITV, a method of drawing on a large screen using an NTSC image switching device or an RGB image switching device has been used.
[0004]
[Patent Document 1]
JP-A-10-039921 (paragraph 0013-0021, FIG. 1)
[Patent Document 2]
JP-A-09-244862 (paragraphs 0012-0015, FIG. 1)
[0005]
[Problems to be solved by the invention]
According to the above-mentioned conventional technology, when displaying a graphic monitoring screen of n-plane collective size on an n-screen large screen, the graphic monitoring screen is divided into n pieces by n CPUs. It was difficult to design and manufacture. Further, when monitoring a moving image such as an ITV, only a display method in which a part of a large screen is changed to an ITV image by switching between an RGB image and an NTSC image can be performed.
[0006]
In a plant monitoring and control system, there is a need for realizing effective monitoring by simultaneously confirming two sources of a graphic monitoring screen for grasping the state of a plant and a real-time moving image at a site or a remote place such as an ITV.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a large screen monitoring control system capable of coexisting and displaying a graphic monitoring screen and an ITV moving image in view of the above-mentioned problems of the related art.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a large screen monitoring and control system that displays a plant status signal and a moving image from an ITV camera on a plant monitoring screen. A multi-screen controller for providing a plurality of video display windows on the graphic monitoring screen, and a video synthesizing device for converting the NTSC signal from the ITV camera into an RGB signal and then synthesizing with the status signal. Wherein the video synthesizing device renders an ITV moving image converted into an RGB signal in the video display window.
[0009]
The video compositing device draws the ITV moving image on the foreground of the plant monitoring screen by a hard overlay method.
[0010]
Further, the large screen monitoring control system of the present invention is a multi-screen controller in which an n-screen output graphic board is mounted on a computer of one CPU, and a graphic monitoring screen including a plurality of screens and a plurality of video display windows are provided on the graphic monitoring screen. And a video synthesizing device for converting the NTSC signal from the ITV camera into an RGB signal and then synthesizing the RGB signal with the status signal, wherein the multi-screen controller arranges the plurality of video display windows at predetermined positions. It is characterized by having.
[0011]
The arrangement display means arranges the image display windows in the order of early display.
[0012]
The arrangement display means arranges the plurality of video display windows while avoiding a predetermined area predetermined on the plant monitoring screen.
[0013]
According to the present invention, two sources, a graphic monitoring screen for grasping the state of a plant and a real-time moving image at a site or a remote place, can be visually checked at the same time, so that accurate judgment and operation of a plant monitoring operation can be performed. Further, when a simultaneously displayed real-time moving image is handled on a graphic monitoring screen, a monitoring control system that is easier to see and operate can be realized by providing a function of arranging video display windows.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a large screen monitoring control system according to one embodiment. The plant state signal is taken in real time from the plant control controller 15 to the multi-screen controller 12 via the control LAN 14. This status signal is displayed on the large screen 1 from the n-plane output graphic board 1201 via the video synthesizing devices 501 to 503 and the RGB image switching device 4. The large screen 1 draws a plant status signal on the graphic monitoring screen 2 together with the plant system.
[0015]
Real-time moving images at a site or a remote place are photographed by ITV cameras 701 to 712, and screen synthesis is performed by ITV devices 1 to 3 (801 to 803). NTSC signals from the ITV devices 1 to 3 (801 to 803) are displayed on the large screen 1 via the NTSC image switching device 6, the high definition devices 601 to 603, and the RGB image switching device 4. The ITV control device 9 is used for controlling the ITV cameras 701 to 712.
[0016]
In this system, a plant status signal input to the multi-screen controller 12 in real time is sent from the n-plane output graphic board 1201 to the video synthesizing devices 501 to 503, set to the base screen, and sent to the RGB image switching device 4. send.
[0017]
On the other hand, NTSC signals from the ITV devices 1 to 3 (801 to 803) pass through the NTSC image switching device 6, the high-definition devices 601 to 603, and the RGB image switching device 4, and then as shown by the downward arrow in FIG. The image is returned to the video compositing devices 501-503. At this time, together with the image data of the graphic monitoring screen 2 which is the base screen, the moving image signal converted from the NTSC signal to the RGB signal from the ITV devices 1 to 3 (801 to 803) is returned to the video synthesizing devices 501 to 503. . The high-definition devices 601 to 603 convert the NTSC signal into the RGB signal, and the input to the RGB image switching device 4 is an RGB signal.
[0018]
The video synthesizing devices 501 to 503 have a function called a hard overlay method for outputting as a superimposed screen. The drawing function of the hard overlay method superimposes a signal of a sub-input on a base input, and draws a signal obtained by converting an NTSC image into an RGB image (the original NTSC image) on the foreground of the screen.
[0019]
In this system, a graphic monitoring screen 2 as a base screen is drawn on a large screen 1 as shown in FIG. 1, and video display windows 301 to 309 are provided on the monitoring screen 2. Then, a signal obtained by converting the NTSC image into an RGB image is drawn in the area of a certain size in the video display windows 301 to 309 on the foreground of the graphic monitoring screen 2 using the hard overlay method.
[0020]
The multi-screen controller 12 includes one CPU. For this reason, the first screen 101, the second screen 102, and the third screen 103 of the large screen, which were conventionally shared and displayed by different CPUs, can be drawn by a single CPU. The multi-screen controller 12 has a management table for managing the coordinates of the video display windows, a task for generating the management table, and a task for arranging the video display windows (alignment display means).
[0021]
The control device A11 and the control device B10 are control devices for the large screen 1. Dashed arrows from the control device A11 and the control device B10 indicate control signals. The large monitor integrated LAN 13 is used to exchange control signals between the multi-screen controller 12 and the control device A11.
[0022]
FIG. 2 shows a configuration of a large screen monitoring control system including a connection terminal. Here, in addition to the configuration of FIG. 1, connection terminals and inputs and outputs of the RGB image switching device 4, the video synthesizing devices 501 to 503, the NTSC image switching device 6, and the high-definition devices 601 to 603 are shown. In order to understand the connection relationship.
[0023]
FIG. 3 shows terminal numbers for the RGB image switching device 4, the video synthesizing devices 501 to 503, the NTSC image switching device 6, and the high-definition devices 601 to 603, and shows the connection relationship among them.
[0024]
The RGB image signals entering the IN1 of the video compositing devices 501 to 503 from the n-plane output graphic board 1201 enter the IN14, IN15, IN16 of the RGB image switching device 4 from OUT1 of the video compositing devices 501 to 503, respectively. The RGB image signals are displayed on the screens 101 to 103 of the large screen 1 from OUT10, OUT11, and OUT12 of the RGB image switching device 4.
[0025]
When the video synthesizing devices 501 to 503 use a device with four inputs and one output, one input is used for the base screen, and the remaining three inputs are used. In this embodiment, three large screens are provided with three video synthesizing devices 501 to 503. An image synthesizing device 501 corresponds to the first large screen 101, an image synthesizing device 502 corresponds to the second large screen 102, and an image synthesizing device 503 corresponds to the third large screen 103.
[0026]
NTSC image signals from the ITV devices 801 to 803 are input to IN1, IN2, and IN3 of the NTSC image switching device 6. OUT1, OUT2, and OUT3 of the NTSC image switching device 6 are input to IN1, IN2, and IN3 of the high-definition devices 601 to 603. The high definition devices 601 to 603 convert NTSC signals into RGB image signals by the internal signal conversion processing. The converted image signals (= RGB image signals) are input from OUT1, OUT2, and OUT3 of the high-definition devices 601 to 603 to IN6, IN7, and IN8 of the RGB image switching device 4. In the present embodiment, superimposed display is performed. When superimposed display is not performed, the image is displayed on the large screen 1 from OUT10, OUT11, and OUT12 of the RGB image switching device 4.
[0027]
FIG. 4 shows a state in which an n-plane output graphic board is mounted on the multi-screen controller 12. In this embodiment, a multi-monitor graphic board Appian X4 manufactured by US APPIAN GRAPHICS was adopted as the n-plane output graphic board 1201.
[0028]
Appian X4 is a specification of four outputs. As shown in the figure, two connectors are provided on the upper and lower sides of the board, and are connected to a partner device by a cable that branches into two. Assuming that the terminals coming out of the upper connector are UP2 and UP3, UP2 corresponds to CH1 of the screen area to be drawn, and UP3 corresponds to CH2 of the screen area to be drawn. Assuming that the terminals coming out of the lower connector are DW2 and DW3, DW2 corresponds to CH3 of the screen area for drawing, and DW3 corresponds to CH4 of the screen area for drawing.
[0029]
The present embodiment has a three-screen configuration often used in a large screen monitoring and control system. The large screen 1 is divided into a first large screen 101, a second large screen 102, and a third large screen 103. Each of the above-mentioned CH1, CH2, and CH3 inputs RGB image signals to the first large screen 101, the second large screen 102, and the third large screen 103. In addition, CH4 of Appian X4 was not used.
[0030]
FIG. 5 is an explanatory diagram of the initial setting of the n-plane output graphic board. This is an example of initial setting of a four-sided horizontal arrangement and a three-sided horizontal arrangement of an n-side output graphic board 1201. Appian X4 has software called a device driver attached to the board. By defining initial settings of the device driver, a screen area to be drawn in a four-sided or three-sided array can be designated.
[0031]
Regarding the resolution of the screen area to be drawn, 1024 dots by 1280 dots defined as the type of resolution in a normal computer is treated as 1CH. In the present embodiment, a screen area of 1024 dots by 3840 dots is handled by the multi-screen controller 12 of one CPU because it is used in the form of a three-plane horizontal arrangement.
[0032]
FIG. 6 is an explanatory diagram of a superimposition screen by the video synthesizing apparatus. As the video synthesizing devices 501 to 503, a multimedia scan converter MC-2007 manufactured by Astro Design Inc. was used.
[0033]
The MC-2007 is provided with the inputs IN1 to IN4 and the output OUT1 as shown in the video synthesizing devices 501 to 503 in FIG. 6B, and outputs analog RGB signals as a superimposed screen. The input screen of IN1 to IN4 of the multimedia scan converter can be set freely in display position, priority, size, display area, and automatically follows various input signals, automatically sets the image outline and displays It is possible.
[0034]
In the present embodiment, the input to the IN1 of the video synthesizing devices 501 to 503 is the input from the multi-screen controller 12, and this is used as the graphic monitoring screen 2 (base screen). Then, the ITV screen 3011 to ITV screen 3031 are input to IN2 to IN4 of the video compositing apparatuses 501 to 503, respectively. Using the function (hard overlay method) of outputting as a superimposed screen of the video synthesizing apparatuses 501 to 503, the superimposed screen as shown in FIG. 6A is drawn.
[0035]
The multi-screen controller 12 has a function of arranging video display windows. FIG. 7 is an explanatory diagram of the arrangement function of the video display windows. When the video window activation button 21 is selected in the display state of FIG. 7A, the video display window (h) is called as shown in FIG. 7B. As shown in FIG. 7 (c), the image display window (h) has an arrangement button 31 built in the software. When the arrangement button 31 is selected, the image is displayed as shown in (b) → (d). In the display window, a predetermined arrangement display is performed.
[0036]
FIG. 8 shows a management table of the video display window. In order to arrange the video display windows, a management table (currently displayed video display window) 5101 and a management table (aligned coordinates) 5102 are held in the main memory of the multi-screen controller 12.
[0037]
FIG. 9 is an explanatory diagram of the currently displayed window. The management table 5101 holds nine pieces of video display window information. This is because the number of video display windows that can be displayed simultaneously with three video inputs per video synthesizer 501 to 503 is nine.
[0038]
FIG. 9 shows the image display window [A] displayed at the beginning = window No. 1 shows a state in which 1 has been erased. The management table 5101 holds nine cases of data in the early order of display requests (early display order). In FIG. 2. Window No. 3, window No. 4 is stored. -1 indicates the end of the data.
[0039]
What is important here is that the display order of the windows is to be reflected in the sorted display. When it is desired to visually check an ITV moving image at a site or a remote place related to a plant monitoring operation, a necessary image of the ITV cameras 701 to 712 is selected based on the knowledge and experience of the operator, and an image display window 301 to 301 on the large screen 1 is selected. 309. In this method, in general, it is desired to display an ITV image with higher importance earlier, so that the display order is recognized earlier, and the arrangement is preferentially arranged in the order of display in order of display.
[0040]
FIG. 10 is an explanatory diagram of a management table of the alignment coordinates. The management table 5102 holds, in the order of request (display), the order in which the windows are to be aligned and displayed when a request for the alignment process is issued. As in the arrangement coordinate example 71, windows (a) to (g) are arranged and displayed at predetermined positions in accordance with the initial values of the arrangement coordinates 1-9 of the management table 5102.
[0041]
FIG. 11 shows a flowchart of the management table (currently displayed video display window) generation task. The generation task of the multi-screen controller 12 determines whether there is a request for the video display window activation button or a request for deletion (S7001). If YES, the process of calling or erasing the video display window is performed (S7002), and the data of the management table (currently displayed video display window) 5101 is rewritten in the early order (S7003), and the process ends.
[0042]
FIG. 12 shows the video display window arrangement task. The alignment task of the multi-screen controller 12 determines whether there is a video display window alignment request (S8001). If YES, the management table (currently displayed video display window) 5101 is read (S8002). Next, read out the alignment coordinates from the management table (alignment coordinates) 5102 (S8003), and execute the image display window alignment processing (S8004).
[0043]
FIG. 13 shows a design example of the graphic monitoring screen. The design example 81 is a state before arrangement display, and the design example 82 is a display state after arrangement. The satin area in FIG. 13 is an area for displaying important information on plant monitoring.
[0044]
The design example 82 shows an alignment display state in which alignment coordinates are intentionally arranged. For example, if there is an area for displaying important information for plant monitoring, by setting the alignment coordinates while avoiding this area, an area for displaying important information for plant monitoring can be previously opened.
[0045]
In FIG. 13, the coordinates (x0, y0) in the aligned coordinate example 71 of FIG. 10 are eliminated and the coordinates (x2a, y2a) are provided instead, as in the aligned coordinate example 83. In order to prioritize the arrangement, the arrangement coordinates of the video display window arranged first in the arrangement coordinate example 83 are (x1, y1). As a result, it is possible to perform the aligned display while securing an area (x0, y0) for displaying information important for plant monitoring.
[0046]
As described above, according to the large-screen monitor control system of the present embodiment, an n-plane output graphic board is mounted on a computer of 1 CPU, and a system configuration is constructed such that a graphic monitor screen of a batch size of n-plane can be designed and manufactured. ing. In addition, a video display window is provided on the base graphic monitoring screen, and an NTSC image, which is an ITV moving image, is converted into an RGB image in a certain size area in the video display window, and drawn in the foreground using a hard overlay method. Configuration.
[0047]
As a result, the graphic monitoring screen and the ITV video can coexist and be displayed, and it is possible to simultaneously visually check the two sources of the graphic monitoring screen for grasping the state of the plant and the real-time video at the site or remote location such as ITV. Become.
[0048]
Also, when real-time moving images at the same time, such as an ITV, or a remote place displayed simultaneously are handled on a graphic monitoring screen, by providing a video display window arrangement display function, it is possible to realize a monitoring control system that is easier to see and operate. .
[0049]
Furthermore, an area for displaying important information for plant monitoring is secured in advance in the display area of the large screen, and a function of arranging and displaying video display windows so as not to disturb the area for displaying important information for plant monitoring is provided. Can be.
[0050]
【The invention's effect】
According to the present invention, it is possible to realize a large screen monitoring control system capable of simultaneously visually checking two sources of a graphic monitoring screen for grasping the state of a plant and a real-time moving image at a site or a remote place such as an ITV. There is an effect that accurate judgment and operation become possible.
[0051]
In addition, by providing an arrangement display function of the video display windows, there is an effect of enhancing a human-machine-based monitoring operation function that is easier to see and operate.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing one embodiment of a large screen monitoring control system of the present invention.
FIG. 2 is a connection diagram showing terminals in a system configuration diagram.
FIG. 3 is an input / output relationship diagram showing terminals and inputs and outputs of an RGB image switching device, a video synthesizing device, an NTSC image switching device, and a high definition device.
FIG. 4 is a mounting diagram of an n-plane output graphic board of the multi-screen controller.
FIG. 5 is an explanatory diagram showing an example of initial settings of an n-plane output graphic board.
FIG. 6 is an explanatory diagram showing a superimposition screen by the video synthesizing apparatus.
FIG. 7 is an explanatory diagram showing an arrangement function of a video display window.
FIG. 8 is an explanatory diagram showing a management table of the multi-screen controller.
FIG. 9 is an explanatory diagram of a management table of a currently displayed video display window.
FIG. 10 is an explanatory diagram of an alignment coordinate management table.
FIG. 11 is a flowchart of a management table generation task.
FIG. 12 is a flowchart of a video display window alignment task.
FIG. 13 is an explanatory diagram showing an arrangement display of video display windows in which a specific area is secured.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Large screen, 101-103 ... Large screen screen (1st to 3rd screen), 2 ... Graphic monitoring screen, 301 to 309 ... Video display window, 4 ... RGB image switching device, 501 to 503 ... Video synthesis device, 6 ... NTSC image switching device, 601-603 ... high-definition device, 701-712 ... ITV camera, 801-803 ... ITV devices 1-3, 9 ... ITV control device, 10 ... Control device B, 11 ... Control device A, 12 multi-screen controller, 1201 n-screen output graphic board, 13 large-scale monitoring integrated LAN, 14 control LAN, 15 plant control controller, 21 video window start button, 31 alignment button, 5101 management table ( Currently displayed video display window), 5102... Management table (aligned coordinates), 301 ~3031 ... ITV screen of the video display in the window.

Claims (5)

In a large screen monitoring control system that displays a plant status signal and a moving image from an ITV camera on a plant monitoring screen,
A 1-CPU computer equipped with an n-plane output graphic board, a graphic monitoring screen comprising a plurality of screens, a multi-screen controller having a plurality of video display windows on the graphic monitoring screen, and an NTSC signal from the ITV camera as an RGB signal After the conversion, a video synthesizing device for synthesizing with the state signal is provided,
A large screen monitoring control system, wherein the video synthesizing device draws an ITV moving image converted into an RGB signal on the video display window. In claim 1,
The large screen monitoring control system, wherein the video synthesizing device draws the ITV moving image on the foreground of the plant monitoring screen by a hard overlay method. In a large screen monitoring control system that displays a plant status signal and a moving image from an ITV camera on a plant monitoring screen,
A 1-CPU computer equipped with an n-plane output graphic board, a graphic monitoring screen comprising a plurality of screens, a multi-screen controller having a plurality of video display windows on the graphic monitoring screen, and an NTSC signal from the ITV camera as an RGB signal After the conversion, a video synthesizing device for synthesizing with the state signal is provided,
The multi-screen controller according to claim 1, wherein the multi-screen controller has an alignment display unit for aligning the plurality of video display windows at predetermined positions. In claim 3,
The large screen monitoring control system according to claim 1, wherein the arrangement display unit arranges the image display windows in an early order of display. In claim 3 or 4,
The large-screen monitoring control system according to claim 1, wherein the arrangement display unit arranges the plurality of video display windows while avoiding a predetermined area on the plant monitoring screen.

Images