JPS6277835A - Power system facility indicator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a graphic CRT connected as a terminal to a central monitoring and control device that performs centralized monitoring and control of power system equipment.
This invention relates to an electric power system equipment display device that graphically displays system installation using a display device such as the above.

[Technical background of defense and its problems]

Graphic CRT display devices have traditionally been manufactured using CAD, CA
Mainly creating and modifying figures in the fields of M, CAE, etc.
Although it is mainly used for offline work, recently it has been increasingly used as a terminal device for online systems.

By the way, in an electric power system 2, for example, a centralized monitoring and control system for a power distribution system, a central computer serving as a master station processes a lot of information from a group of slave stations, but this information processing requires human cognitive ability 2 judgement.

Graphical CRT display devices that can interact with a computer have been employed to facilitate quick and accurate on-line processing using creativity.

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

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

? Wide area support: Since the online system operates with equipment installed in a wide area, it must support a wide display area and be able to display the necessary range according to display requests.

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

This system is a computer with a graphic CRT
The display device is the terminal side, and the host computer in the central monitoring and control unit connected to this terminal side via a communication line is the master station, which collects various monitoring information from the slave stations in real time, and displays the necessary display information. Graphic CRT
A centralized monitoring control system is realized by displaying on a display device and transmitting commands from the graphic CRT display device side and control information automatically processed by the post computer system from the host computer system to the slave station side.

Therefore, in such a configuration, the host computer system performs a large amount of arithmetic processing or data processing, and the computer in the terminal-side GraphInk CRT display device performs display processing, so the terminal The load on the host computer system can be reduced while improving responsiveness on the side.

Now, when using this graphic display system for power system operation work, the work content is wide-ranging, so depending on the purpose and content, CRT
The range of chain acids desired to be displayed on the display screen is different. Here, examples of display areas required in the operation of the power system 1, for example, a power distribution system, are as follows.

(Example 1) When performing macro monitoring of the power distribution system
In the event of a widespread power outage due to a bank accident, one or more distribution substations will provide CR for the area supplied with power.
7 Display 8 Check the general situation by displaying it on the screen.

(+,?J2) When creating an operating procedure for a distribution line switch When creating and executing an operating procedure consisting of a series of closing/opening operations for a distribution line switch, the range is usually 1 to 3 distribution lines. The targets are displayed on a CRT display device for business purposes.

(Example 3) When performing maintenance on a power distribution system diagram When a change occurs in the layout of the power distribution system, the parts to be maintained on the power distribution system diagram are displayed on the bottom side of the CRT display device.

As can be seen from these examples, since the range desired to be displayed on the screen of a CRT display device varies, the power system/equipment monitoring device must have the ability to change the scale of the screen display. Conventionally, when changing the scale of the screen display, the display size of each display item is fixed in the segment structure of the display information. Items are uniformly enlarged/reduced at the same ratio according to the scale factor. On the other hand, CR
When changing the range displayed on the screen of the T-display device, the items to be displayed will differ. For example, when performing macro display, it is necessary to limit the display items to easily identify the overall situation, and when performing maintenance, it is necessary to display all items. However, conventionally, the display items included in the display information are displayed in a uniformly enlarged or reduced state according to the scale factor, so the size of the display items simply becomes larger or smaller without changing the density of the information. For example, when performing macro monitoring, there are many display items on the screen, making it very difficult to understand. Furthermore, unlike vectors (line segments), characters, symbols, and the like among display items have a simple spread, so if they are simply enlarged/reduced, they become unnecessarily large or become so small that they are difficult to decipher.

As described above, in the past, when changing the scale of the display, the display did not meet the viewer's needs, so there was a problem that the operation of the power system could not be carried out smoothly.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned problems, and its purpose is to display power system equipment in a wide or narrow range that is easy to see and meets the needs of the viewer. It is an object of the present invention to provide a power system equipment display device that can smoothly monitor and control various equipment even in a complex power system installed over a wide area.

[Summary of the invention]

In order to achieve this object, the present invention stores a group of display information for each scale stored in this database in the segment memory of the display device, and allows the center position and scale ratio of the display to be specified from outside. Then, in the display area for the display screen of the display device calculated based on these, display target information of the specified scale factor is extracted from the display information group stored in the segment memory, and the information is displayed on the display device. It is characterized by the fact that it is made to do so.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the configuration of a power system equipment display device according to the present invention. In FIG. 1, 1 is a graphic CRT display device with a computer serving as a terminal, and 2 is a host computer system in a central monitoring and control unit that is connected to this terminal via a communication line. These devices use the host computer system 2 as a master station to collect various monitoring information from slave stations in real time and display necessary display information on the graphic CRT display device 1.
The command from the graphic CRT display device 1 and the host computer system 2 allow the self-vJ! This constitutes a centralized monitoring control system that transmits control information processed in accordance with 2!1 from the host computer system 2 to the slave station side.

The graphic CRT display device 1 is a CRT monitor 3 that performs refresh drawing using a rask scan display method.
, a display processor 4 serving as a control center, and graphical information (line segments) to be displayed.

Segment memory 5, C for storing symbols, characters, etc.
A frame memory 6 having bits corresponding to each pixel on the screen of the RT monitor 3 on a one-to-one basis and an interface 7 for transmitting information to and from the host computer system 2 are provided.

The host computer system 2 also includes a host computer 8 serving as a control center, an auxiliary storage device 9 such as a magnetic desk for storing data processed by the host computer 8 into graphical information as one processing function of online processing, and a graphic CRT. It is equipped with an ink-face 10 that transmits information to and from the display device 1, and a teleconverter (TCM) 11 that collects various monitoring information from the slave station side.

In the power system equipment display device having such a configuration, in this embodiment, the display information of the equipment to be displayed in the power system whose graphic information has been processed by the host computer 8 in the host computer system 2 is divided into 1 for each display scale, for example, 1 standard, 2 The display information for each scale is stored in the auxiliary storage device 9 after being divided into 2x, 4x, and 8x magnifications, and the display information for each scale stored in the auxiliary storage 9 is stored in the segment memory 5 in the graphic CRT display device 1 as described above. Similarly, the display information is divided and stored, and when the display center position and scale are specified from outside, the display processor 4 calculates the display area for the screen of the CRT monitor 3 and stores it in the segment memory 5. Display target information of a specified scale is extracted from the displayed information group, and the information is displayed on the CRT monitor 3.

Here, a specific example of display information for each scale consisting of a group of display items (characters, symbols, etc.) of the power distribution system stored in the auxiliary note (a device 9 and segment memory 5) is as shown in FIG. This display information is managed by the figure matrix table shown in Fig. 3.In other words, in the figure matrix table shown in Fig. 3, n is the figure class corresponding to the distribution line unit; m is a graphic group corresponding to the display magnification (standard, 2x, 4x, 8x).Furthermore, the graphic group to be displayed at the externally specified display magnification is defined by a table as shown in Figure 4. That is, the display target/non-display target at the relevant magnification is defined for each graphic group by 17'O.

Next, the operation of the device of this embodiment configured as described above will be explained in the fifth section.
This will be described with reference to FIG. Fig. 5 shows an example of display for one power distribution system, and Fig. 5 shows an example of data stored in the auxiliary storage device 9 and segment memory 5 of Fig. 1. Now, whether or not the display items for the power distribution system shown in FIG. 5 are displayed in the auxiliary storage device 9 and segment memory 5 of FIG. 1 at the display magnification.

It is assumed that the graphics are divided and stored into graphic groups A to E in FIG. 6 depending on the display magnification and the like. That is, in Fig. 6, A is common data that is displayed at all magnifications, B is data that is displayed only when the display magnification is the standard magnification, and C is data that is displayed when the display magnification is 2x. D is data that is displayed only when the display magnification is 4x and 8x, and E is data that is displayed only when the display magnification is 8x.

Therefore, if the display magnification is the standard, A and 8 will be displayed,
A for 2x! :C is displayed, A and D are displayed at 4x, and A, D, and E are displayed at 8x.

Whether or not to display a graphic group at each display magnification as described above is specified by the display target graphic group specification table for each display magnification shown in FIG. 4. If this is defined in the table of FIG. Become.

Thus, as described above, if the display items of power distribution system VT equipment are registered in advance as a figure matrix table according to the size and presence/absence of display according to each display magnification, you can simply specify the display center position and scale factor from the outside. Graphic CRT
The display target is determined from the display information divided and stored for each scale in the segment memory 5 in the display device 1 based on a matrix of figure classes and figure groups, and is determined by the display processor 4 on the screen of the CRT monitor 3. The display area is calculated and the display target information of the specified scale is extracted from the display information group stored in the segment memory 5, and the information is displayed on the CRT monitor 3.

FIG. 8 shows the relationship between enlargement and reduction of part of the power distribution system equipment displayed on the CRT monitor 3. In FIG. As is clear from Fig. 8, by enlarging 7·' and reducing A
The display items AA to DDD are displayed to the right of the display, ・'None, and the size on the display remains constant even if the illustration A is enlarged/reduced by the ' line, and the display size of the illustration opening to E is changed by enlargement/reduction. It can be seen that each item is enlarged/reduced at a ratio determined for each item, and furthermore, it is enlarged/reduced at the same ratio as the enlargement/reduction ratio.

In this way, according to the above-mentioned embodiment device, the display information to be displayed is divided in advance into the auxiliary storage device and the segment memory, and the display information consists of a group of display items (characters, symbols, etc.) of the power distribution system, and is divided for each scale. Since this display information is managed using a figure matrix table, all you need to do is decide the display figure group based on the display magnification and the target figure class (distribution line) based on the display area. It becomes possible to extract externally specified display targets from the figure matrix table.

Therefore, it is possible to determine whether or not to display a display item and its display size in accordance with the display magnification, without performing any operations or the like at the time of a display request. This can be achieved at high speed.

(Effects of the Invention) As described above, according to the present invention, the power system display target XQ! The display information group for each scale is stored in the segment memory of the display device, and when the display center position and scale rate are specified from outside, the display information on the display screen of the display device is calculated based on these. Since the display target information of the specified scale is extracted from the display information group stored in the segment memory in the area and displayed on the display device, it is easy to see when displaying a wide or narrow range. A power system equipment display device that can display power system equipment according to the viewer's requests, and can smoothly monitor and control various types of equipment even in a complex power system installed over a wide area. can be provided.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram, not showing an example, when the power system equipment display device according to the present invention is applied as a centralized monitoring control system, and Fig. 2 is a display of each scale consisting of a group of display items of the power distribution system. FIG. 3 is a diagram showing a specific example of information. FIG. 3 is a diagram showing a figure matrix table showing the display information in the relationship between figure groups and figure classes in the same example. FIG. 4 is a figure showing the display target figure groups by display magnification The designation table, FIGS. 5 and 6 are diagrams showing display examples for one distribution line to explain the operation of the embodiment, and the data stored in the auxiliary storage device and segment memory in correspondence with the display examples. It was done. An explanatory diagram of the data, Figure 7 is a diagram showing a designation table of graphic groups to be displayed by display magnification corresponding to each data in Figure 6, and Figure 8 is about a part of the power distribution system equipment displayed on the CRT monitor screen. FIG. 3 is a diagram showing the relationship between enlargement/reduction. 1... Graphic CRT display device, 2...
...Host computer system, 3...C
RT monitor, 4...display processor,
5...Segment memory, 6...Frame memory, 7,10...Interface,
8...Host computer, 9...Auxiliary storage device, 11...: Teleconverter (TCM). Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Figure 7

Claims (1)

[Claims] In a display device that uses a computer and a display device connected to it to enlarge or reduce the status of equipment in an electric power system, the equipment to be displayed in the electric power system is divided into groups of display information for each display scale and each is stored. means for storing the display information group for each scale stored in the database in the segment memory of the display device; means for calculating the display area for the display screen of the display device based on the specified position and scale; and specifying the display area calculated by the calculation means from the display information group stored in the segment memory. A power system equipment display device comprising: means for extracting display target information of the scaled scale ratio and displaying the information on the display device.