JPS6244882A - Graphic display device - Google Patents

Abstract

PURPOSE:To simplify an operation and a processing by storing information required for picture display under the preceding display condition and directly separating image information under the preceding display condition only by the name of the system and the specification of the item in the succeeding stage. CONSTITUTION:A graphic CRT display device 1 is connected to a host computer system 2 through a communication line 12. Graphic information displayed on a CRT monitor 3 is stored in a host computer 8 or a display processor 4 together with a display item to be specified at the generation of a display request by defining the center of the display screen of the graphic information and its reduction as its display conditions, and when the display item is specified at the time of display in the succeeding operation, the graphic information having the center of the picture and the reduction under the precedently stored is separated and displayed on the CRT monitor 3.

Description

[Detailed description of the invention] A. Industrial application field The present invention applies to electric power and gas installed in a wide area.

A graphical display device consisting of a graphic CRT display device connected to the terminal of a business processing device in the field where operations are performed using equipment such as water supply 2 communication lines, etc., and particularly a display power type for equipment targeted for operation operations. This invention relates to a graphic display device having four features.

Summary of B0 invention The present invention applies to electric power and gas installed over a wide area.

In a graphic display device consisting of a graphic CRT display device connected to the terminal side of a business processing device in the field of operating industry SF: business processing equipment using equipment such as water supply 1 communication lines, the center of the display screen can be adjusted according to the operator's request. The scale and scale are stored together with the name of the display item specified at the time of display request for the screen, and the display center and scale are cut out on the CRT monitor according to the display item name instruction for the next display. By displaying the display items on the screen, it is possible to easily obtain a screen with the display conditions corresponding to the previously stored display items by only specifying the display item names at the start of the operational work.The following is a description of the present invention. describes its application to power systems, especially power distribution systems, in columns.

C,rje's latest technology Graphic CRT display devices have traditionally been manufactured using CAD, CA
It is often used in offline work such as creating and modifying graphics in fields such as M, CAD, etc., but recently it has been increasingly used as a terminal device for online systems. In the control IIV system, the central computer that serves as the master station processes a lot of information from the slave stations, but this information processing is done quickly and accurately using the human cognitive ability, judgment, and creativity through vision. A graphical CRT display is provided to allow on-line processing.

In this centralized monitoring and control system, the graphic CRT display device serving as the terminal device is required to have the following two points in terms of functionality and performance compared to the previous 11 devices.

(1) High-speed display: Good responsiveness is an essential condition for the online 7 system. The process from display request to display completion must be performed quickly, and various display updates must be performed at high speed.

(2) Wide area support: Since the online system operates for equipment installed in a wide area, it supports a wide display area and can display the necessary range 8 according to display requests.

In order to meet these demands, a system configuration called an intelligent terminal type has been adopted as a graphic display system.

As shown in FIG. 2, this system has a graphic CRT display device lf (terminal side) having a computer, and a host combinatorial system 2 is connected to this terminal side via a communication line. With this host computer system 2 as the master station, the slave stations collect various monitoring information in real time and display necessary information on the graphic CRT.
Graphic CRT display device 11
A central monitoring side leg system is realized by a configuration in which commands from the host computer system 11 and control information automatically processed by the host computer system 2 are transmitted from the host computer system 2 to the slave station side.

In this configuration, the host computer system 2 is made to perform a large amount of arithmetic processing or data processing, and the computer in the terminal-side graphic CRT display manufacturing unit is made to perform display processing. The load on the host computer system 2 is also reduced while improving performance. Graphic information processing in the configuration shown in FIG. 2 will be described in detail below.

The graph isograph 201 display device 1 has a CRT monitor 3 that performs refresh drawing using the rask scan display method. , character fathom information) are stored in the segment buffer 51. As shown in FIG. 3, the graphic information stored in the segment buffer 51 is divided into individual graphic elements located at the lowest
g (data type 2 display position m, display color, etc. that specifies the display figure) SD, and the attributes (visible attributes, detection attributes, etc.) of each graphic element located above these figure path SD are defined. It is configured into a tree structure by attribute elements SP.

This segment is bad 715! The graphic information in the range n (rectangular area that is summed by the coordinate values) that is requested for display is extracted from the graphic information stored in the file. A matrix arithmetic processing unit 52 which performs the above operations and a clipping processing unit 55 which removes portions that protrude from the displayable screen frame of the CRT monitor 3 are prepared. A digital differential analysis (DDA) process S5t is prepared which expands the on/phi/off information of the bits on the corresponding 7-frame buffer 6.

The frame buffer 6 is physically a memory that has bits that correspond one-to-one to each pixel on the screen of the RT monitor 3. For color display, it has multiple bit planes and a look-up table. 7 is used to determine the display color. This will be explained with reference to Fig. 4. The figure shows a case where the 7 frame parts 7a 6 has three pit planers 1, φ2, and 3, and the segment buffer The on/off of the bits corresponding to the graphic information of 51 is developed as a combination of bit planes φ1 to φ1.
The display on the tube N is performed by raster scanning the frame buffer 6, and determining the bit-on combination value of each bit plane φ1 to ÷3 as an address in the lookup table 7. ), G (green), and B (back) beam outputs are given to the CRT monitor 3.

#! Returning to Figure 2, the host computer system 2, as the central part of the host combinator 5tll+lIN, processes graphical information as one of the processing functions of online processing, divides the data into an appropriate format, and stores it in the auxiliary storage device 9 such as a magnetic disk. Save it, Gutsfic CRTIII! The graphical information in the range requested by the display device 1 is transmitted to the interfaces 10, 11 . @The graphic CRT display device IK is transmitted through the communication line of the transmission line 12, and the received data is sent to the segment buffer 51 in the graphics CRT display device 1.
Store it in .

Problems to be Solved by the D0 Invention When using a GUTSUFIC CRT display device as a terminal device for a centralized monitoring and control system for power systems and equipment, it is necessary to Area support is the 5th area support for equipment installed over a wide area.
As shown in the figure showing the display rows of the power distribution system, because the CRT monitor can only display a portion of the equipment system due to its screen limitations, a function is provided that can switch and display the necessary range according to the operator's request.

To display this necessary range of switching, the operator specifies the name of the distribution substation or distribution line, and the host computer memorizes the display center position and scale for these names. The display center position and scale are searched from the given name, and based on that, the Gu2Fic CRTj!
! A display request is made to the display device.

In this way, when specifying a name and determining the display center position and scale for the name, the following conditions are determined as initial settings within the host combinator system.

(D-1) When the full name of the power distribution 1tpJr is specified: 0 In this case, the display center position is set to the position where the room of the substation is located, and the scale is set to a large scale such as 1/4000. This is so that a distribution substation typically supplies power to a large number (10-20) of distribution lines and can display them on a monitor.

(D-2) At 9:00, indicate the name of the power distribution line. In this case, the display center position is the position where the stand-up equipment for the distribution line is located, and the scale is t - Furthermore, in order to display the distribution line and the nearby distribution lines on the monitor, the scale is 1/2000. .

In this way, the display center position and scale are determined as initial setting values, but this may not be appropriate for operational purposes.

If you keep it, the distribution tS name specification does not necessarily mean that the distribution line rising equipment is located in the center, so #! As shown in Figure 6 (&), if the initial setting value is set at the center of the monitor, if the equipment is spread out only to the right from the rising edge, the display will be inappropriate. It is necessary to change the display position by scrolling or the like from the display as shown in FIG. 6(b).

Regarding the scale, each distribution line has a different supply area, and as shown in Figure 6 (b), the distribution line supply area is narrower when the scale is set to the initial value, so compared to the tube surface of Moe-3. The display becomes smaller.

The scale of this barrel is also changed so that it has an appropriate width 9 relative to the pipe surface as shown in FIG. 6(d).

In this way, if only the initial setting values are used, it is necessary to change the center position, scale, and switch operations and functions for operational purposes.

Next, in the power system/equipment centralized monitoring side leg system A, the following display condition changes are necessary in order to implement the % type different usage work.

For various operational tasks such as accident recovery, normal operation, and maintenance, a subject is determined and the tasks are carried out under that subject. When performing work on a certain subject, depending on the type and cross-section of the work, a power distribution system diagram may be displayed and operated on a graphic CRT at a specific display center and scale, and then, when starting work related to the subject, The same display center and scale may be required.

Even in this case, it is necessary to move the display range or change the scale until the appropriate area is displayed, which poses a problem that requires complicated operations and delays operational work.

These problems occur not only in power systems that have been installed over a wide area, but also in the operation of facilities such as gas and water 2 communication lines.

Means and operation for solving the E0 problem The present invention addresses the above problems and includes a group of display items corresponding to each facility such as an electric power system, and a group of display items corresponding to map information such as streets and place names. By storing the display information in the storage device and specifying the area to be cut out and displayed from the stored display information, the equipment in that area is displayed on the Gutsufishi 201 display device in correspondence with the map. In a graphics display device that performs When the display items are instructed to be displayed in the operation work of the CRT, the CRT includes means for displaying the display items on the CRT by cutting out the graphic information having the center and scale of the screen under the display conditions stored last time. ,
1 for the second and subsequent investment business! This method is designed to slow down the process by directly obtaining a screen under the previous display conditions only by specifying display items.

Fig. 1 is a diagram illustrating a mode of display switching and updating in which the processing power method of the present invention is applied to a power distribution system. In the diagram, the mark indicates the main switch (or section switch), the mark indicates the link switch, the line segment connecting the two switches indicates the distribution line, and the R mark indicates the start-up point of the distribution system. The display screen on the CRT monitor is indicated by a diagonal block.

In Figure 1, (1) indicates that the operator has instructed the name of the distribution line! Then, the host computer 8 gives graphic information to the graphic CRT display device 1 centered on the start-up point of the name prisoner, and displays it on the CRT monitor 3 of the display device 1 to indicate a good condition. Assuming that the display screen required by the operator is in the position shown in Figure 1 (-),
In the initial stage, the center point pH to P4 is sequentially indicated to the display 1illii surface as in the past, and the screens shown in (@) are obtained through the screen switching of (Hata) to (d), or the screens shown in (1) to (d) are obtained. （・）
The screen shown in parentheses is obtained by giving scroll instructions in the order of . Each process of the display processor 4 is executed. Also, scaling processing and display for the display screen are executed. In these processes, the host combinator 8 stores the timing of the display processor 4, the center O1 and scale of the final display screen (FIG. 1) in response to a display condition change instruction from the operator.

Then, the next time a request is made to display the same strain name or subject, the host combination Go-Yu8 will display the display screen at the center 0 of the display screen under the previous memorized display conditions for the same strain name or subject.
1 and the reduction scale are called, and the graphical information of the screen is given to the graphic CRT display IK, and the display image thT under the display conditions described in (b) is displayed.

Therefore, for the first time, the system name or subject is specified by the display fading and updating process from the start-up point, but from the second time onwards, the system name or subject is specified and the light display screen is changed to the previous display condition. can be displayed directly.

In addition to the effects of the G0 invention, according to the present invention, the information necessary for displaying the screen under the previous display conditions is memorized by the operator's instructions, and the system name or subject is specified by the operator. The screen information under the previous display conditions is directly cut out and displayed on the C'RT monitor, and the host combination can be used to easily obtain the screen of the target equipment such as the power system. By simplifying the processing by the display processor and the display processor, business operations can be carried out smoothly.

[Brief explanation of drawings]

11...Interface, 12...Transmission path. Fig. 1 is a diagram for explaining the display switching/updating aspect of the power distribution system according to the present invention, Fig. 2 is a configuration diagram of the power system/equipment monitoring device, and Fig. 3 is the segment structure of the graphical information handled in Fig. 2. 4 is an explanatory diagram of the bit development and color display processing of graphic information in FIG. 2, FIG. 5 is a diagram illustrating display graphics on a CRT monitor, and FIG. 6 is a diagram illustrating display mode and switching mode. It is a diagram. DESCRIPTION OF SYMBOLS 1... Graphic CRT display device, 2... Host computer system, 3... CRT monitor, 4...
・Display processor? , 51... Segment buffer, 52... Matrix calculation processing section, 55... Clipping processing section, 5... DDM processing section, 6...
7 frame x 7 a, 7... lookup table, 8
...Host computer, 9...Auxiliary storage device, 1
0.

Claims (1)

[Claims] A graphic CRT display device is connected to the terminal side of business processing equipment in fields where operations are performed using equipment such as electric power, gas, water, communication lines, etc. installed over a wide area, and display items corresponding to the equipment are displayed. Display information consisting of a group of display items corresponding to map information such as groups, streets, and place names is stored in the storage device, and by specifying an area to be cut out and displayed from the stored display information, it is possible to display information within that area. In a graphic display device that displays equipment on a graphic CRT display device in correspondence with a map, the display screen center and scale of the graphic information displayed on the CRT monitor are used as display conditions to display the graphic information displayed on the host computer together with the specified display items at the time of display request. By storing the information in the side or display processor, and by cutting out the graphic information with the center and scale of the screen under the previously stored display conditions when the display items are instructed the next time the display is performed in the operation work. 1. A graphic display device comprising processing means for displaying images on a CRT monitor.