JPH03198624A - Distribution system monitor - Google Patents

Abstract

PURPOSE:To easily identify a display information by arranging a means for storing the area zones of equipments by every distribution line, a means for storing them with display precedence, a means for selecting the display information according to density, and a display means. CONSTITUTION:When a display zone is specified with a rectangle through a display zone input means 3, then by a density discriminating means 4, from the rectangle of the display zone and the zones of a zone storage means 5 by every distribution line, the rectangles of the zone informations by every distribution line are estimated to be discriminated, and the distribution lines with the rectangles are extracted. By a display-objective information selecting means 6, according to the number of the extracted distribution lines, a precedence level is defined, and by a display precedence information table 7, the display precedence level is taken out, and a display-objective distribution line is selected from a distributing line equipment storage means 8 and is displayed on a display 10.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention connects a graphic CRT display device as a terminal to a central monitoring and control device, so that the status of the power distribution system can be grasped quickly and accurately. The present invention relates to a power distribution system monitoring device.

(Conventional technology) The power distribution system is equipment located at the end of the electric power system, and the number of these equipment is enormous. Moreover, these equipment are geographically dispersed over a wide range, and are subject to new installation, removal, and modification. As construction work is repeated frequently on a daily basis, the form of system equipment changes daily.

In order to manage and operate power distribution system equipment with these characteristics, in recent years a method has been adopted in which a graphic CRT display device is connected as a terminal to a central monitoring and control unit that centrally monitors and controls the power distribution system. has been done. According to this method, a centrally located computer processes a large amount of information from a group of distributed power distribution system equipment, and displays this processed information on a graphic CRT to improve human cognitive ability.

By using judgment, etc., it is possible to process quickly and accurately online.

In the above-mentioned power distribution system monitoring device, the graphic CRT display device as a terminal device is required to have the following points in terms of function and performance.

■ High-speed display processing function Since it is used for online monitoring and control of power distribution systems, real-time performance is an essential condition, and processes from display request to display completion, changes in display scale, various display updates, etc. must be processed at high speed. .

■ High-range 2D area display function Since it targets power distribution system equipment that is geographically dispersed, it must be able to support a high-range 2D area and display the required area.

In order to meet the above requirements, a power distribution system monitoring device having a system configuration in which a graphic CRT display device is connected as a terminal device has been adopted.

FIG. 11 is a block diagram showing the power distribution system monitoring and control system, and is a graphic CRT display unit with a computer.
The terminal side is jt1, and the host computer system 2 in the central monitoring and control device is connected to this terminal side through a communication line. This host computer system 2 is used as a master station to collect various information from the slave stations (power distribution system) side online in real time, display necessary display information on the graphic CRT display device 1, and display the necessary display information on the graphic CRT display device 1 side. A power distribution system monitoring device is realized by a configuration in which commands from the host computer system 2 and selection control information processed by the host computer system 2 are transmitted from the host computer system 2 to the slave station side.

This configuration uses a distributed processing method in which the host computer system 2 performs a large amount of arithmetic processing or data processing, and the computer in the terminal-side graphic CRT display device 1 performs display processing, improving responsiveness on the terminal side. while host computer system 2
It also reduces the load on

The graphic display process in the configuration shown in FIG. 11 will be described in detail below.

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

information such as symbols, characters, etc.) is stored in the segment memory 5. The graphic information stored in the segment memory 5 includes individual graphic elements (data type, display position, display color, etc. that specify the displayed graphic) and attributes of each graphic element located above these graphic elements. (Visible attributes, detected attributes, etc.)
It is composed of attribute elements that define the

For the graphic information stored in this segment memory 5,
The graphical information in the range (rectangular area determined by coordinate values) requested to be displayed is cut out. For this cutting process, a clipping processing unit 6 etc. is prepared that removes the portion that extends beyond the displayable area of the frame memory 7, and the line segments of the cut out figure information are set at display positions (coordinate positions).
is developed into on/off information of the corresponding bit on the frame memory 7.

The frame memory 7 is a memory having bits that physically correspond to each pixel on the screen of the CRT monitor 3 on a one-to-one basis, and has multiple pit planes for color display, and uses the color table 8 to Decide the display color.

Returning to FIG. 11, the host computer system 2 uses the host computer 9 as a control center and divides data subjected to graphical information processing into an appropriate format as one processing function of online processing, and divides the data into an auxiliary storage device 10 such as a magnetic disk.
The graphic information in the range requested by the graphic CRT display device 1 is stored in the interface 11.12.
, the data is transmitted to the graphic CRT display device 1 through the communication line of the transmission line 13, and the received data is stored in the segment memory 5 in the graphic CRT display device 1.

When performing operational work using the equipment shown in Figure 11, the purpose and purpose of the work are wide-ranging.
The range of the area you want to display on the screen varies depending on the content. Below are examples of display areas required for power distribution system operation work.

■ Macro monitoring of power distribution systems In the event of a widespread power outage due to a power outage, bank failure, etc., one or more distribution substations can monitor a wide range of areas supplied with electricity. View and check the overview.

■ When creating an operating procedure for a distribution line switch When creating and executing an operating procedure that consists of a series of closing/opening operations for a distribution line switch, the range usually covers 1 to 3 distribution lines. Perform business by displaying it on the screen.

■ When performing maintenance on the power distribution system diagram If there are changes to the equipment on the power distribution system diagram, the areas to be maintained on the power distribution system diagram are displayed on the screen.

As can be seen from the above examples, since the range desired to be displayed on the screen varies, the power system/equipment monitoring device needs a function that can change the scale of the screen display.

When changing the scale like this, conventionally, the display size of each display item is fixed in the segment structure of the display information, and the display items included in the cut out area are changed according to the scale rate. Displayed uniformly enlarged/reduced at the same ratio. Furthermore, when changing the range to be displayed on the square screen, the items to be displayed will differ. For example, when performing a 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, display items included in display information are displayed in a uniformly enlarged or reduced state according to the scale ratio, so the size of display items simply becomes larger or smaller without changing the density of information. Because only
For example, when performing macro monitoring, the screen has a large number of display items, making it very difficult to see. Furthermore, unlike vectors (line segments), characters, symbols, and the like among display items have a planar extent, so if they are simply enlarged/reduced, they become unnecessarily large or become small and difficult to decipher.

(Problems to be Solved by the Invention) Although there have been problems as described above, recently a system has been proposed in which the presence/absence of display items and the size of the display can be specified according to the display scale. There is.

Although this system solved the problems associated with changing the display scale, the following problems still remained.

Distribution system equipment is installed widely over a wide area, but these equipments are not evenly distributed, with a large number of equipment being installed in areas with high customer density in urban areas, and a large number of equipment being installed in areas with low customer density in rural areas. The number of installations is small.

For this reason, when overcrowded areas and underpopulated areas are displayed at the same scale, the displayed information overlaps on the screen in overcrowded areas, and
In depopulated areas, the information you want to see may be lacking.

In this way, conventionally, when displaying a certain area, the display information was uniquely determined without determining the density of the display information within the display area. Therefore, depending on the display area, the displayed information may overlap and cannot be easily identified, resulting in a problem that operations cannot be carried out smoothly.

The present invention has been made to solve the above problems, and is a power distribution system monitoring system that determines the density of display information within a display area, and selects and displays information to be displayed according to the degree of density. The purpose is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a power distribution system monitoring device that uses a computer to monitor equipment of a power distribution system installed over a wide area. A means for storing the geographical area of distributed equipment for each distribution line, a means for storing each distribution line with a priority for displaying the equipment of the distribution system, and a means for storing the geographical area of distributed equipment for each distribution line, and a means for storing the geographical area of distributed equipment for each distribution line, means for determining the coarseness and density of display information within the area when designated by the area' and selecting display target information according to the degree of coarseness; and means for displaying the selected display target information. .

(Function) When a display area with a specific shape is specified, the specified shape and the area information for each distribution line stored in advance in the area file for each distribution line are evaluated and determined, and the display area intersects with or crosses the shape of the display area. Extract the included distribution lines. Based on the extracted number of distribution lines, a priority level for display is extracted for the distribution line to be displayed, and display information is displayed according to the extracted priority.

(Example) Examples will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of an embodiment of a power distribution system monitoring device according to the present invention.

In this embodiment, the area where the equipment of the power distribution system is installed is stored as a rectangle for each power distribution line, and by specifying a display area, the display items of the power distribution line corresponding to the display area are retrieved and displayed.

In FIG. 1, the central monitoring and control device 1 includes a display area input means 3 for specifying a rectangular display area, a density determination means 4 for determining the density of the specified area, and a area for each distribution line that is stored in advance. A certain area storage means 5, a display target information selection means 6 for selecting a predetermined one from among the display target distribution lines specified this time, and a display target information selection means 6 for defining a display priority level for the display target distribution lines; It consists of a priority information table 7, a power distribution system equipment storage means 8 that stores power distribution system equipment in advance divided into levels according to display priority, and a display means 9, and the terminal device 2 comprises a Graphic C old display device 10. .

Next, the effect will be explained.

When the display area is designated as a rectangle by the display area input means 3, the density determination means 4 calculates, based on the rectangle of the input display area and the area for each distribution line shown in FIG. 2 stored in advance by the area storage means 5, Evaluate the rectangle of the area information for each distribution line,
Extracts distribution lines that intersect with, include, or have a rectangle that is included in the display area rectangle.

Next, the display target information selection means 6 selects the current display priority level from the distribution system equipment display priority information table 7 that defines the display priority level for the display target distribution line based on the number of extracted distribution lines. Then, a distribution line to be displayed according to the priority is selected from the distribution system equipment storage means 8 and displayed on the display device 10 via the display means 9.

2. Fig. 2 is an example of the configuration of the area file for each distribution line and the area information for each distribution line, and the area file for each distribution line in Fig. 2 (a) has rectangular coordinates L (Xl, Yl
>, R1(X'1.Y'i)... are provided by people. The area information for each distribution line in FIG. 2(b) shows a rectangle including each distribution line in a plan view, and as a matter of course, each rectangle may overlap.

Figure 3 shows an expanded view of the display items for power distribution lines.
As shown in the figure, it consists of sections, switches, shrines, etc.

As shown in Figure 4, the section is a rise and a span.

It is composed of a joint, a section number, a utility pole number, etc., and these components are classified and registered as display elements for each display priority level. In the example of the section not shown in Figure 4, the rising edge is displayed as a rising symbol and 17 at display priority level 2, the span is classified into overhead lines and cables and displayed as a display priority level 1, and the joint is displayed as a joint symbol. Priority level': lf, - section number 3 is set to priority level 2,
Telephone pole numbers are classified and registered in display priority 1, node 3, respectively.

As shown in FIG. 5, the switch is composed of a remote control switch 1, a manual switch, etc., and these components are classified and registered for each display priority level as display elements in the same way as in the above-mentioned sections. In the example of the switch shown in Fig. 5, the switch symbol is set to display priority level 1 for remote control switches, the switch number and X time period are set to display priority level 2, and the switch symbol for manual switches is set to display priority level 1. is classified and registered as display priority level 2, and the switch number and X time period are classified and registered as display priority level 3.

As shown in Figure 6, the shrine consists of service lines, service switches, shrine names, etc., and these components are classified and registered for each display priority level in the same way as the sections and switches described above. put. In the example of the shrine shown in Figure 6, the service line is set to display priority level 2, the service switch is set to display priority level 2, the service switch symbol is set to display priority level 2, the utility pole number is set to display priority level 3, and The shrine name is classified and registered as display priority level 3.

In this way, the display items of the power distribution system equipment are stored in advance by the power distribution system equipment storage means 8 of FIG. 1, sorted into levels for each display priority. As for the current display target information, the display elements up to the display priority level extracted by the display target information selection means 6 of FIG. 1 are extracted from the display elements of the display items of the power distribution system equipment. Furthermore, the display means 9 outputs a display request to the terminal device 2 for the retrieved display information. If not, the graphic CRT display device 10 is
The requested display element is displayed on the graphic CRT monitor.

Next, the effects will be explained separately for each case.

FIG. 7 shows an example in which overcrowded areas and underpopulated areas are displayed as display areas. FIG. 7(a) shows an overcrowded area, and FIG. 7(b) shows a depopulated area. In this example, when the distribution system equipment display priority information table is defined as shown in FIG. 8, in the overcrowded area of (a), the display target distribution line for the display area 11 is A.

B, C, D, E, F, G, N, O, P for a total of 10
It becomes a distribution line. In addition, in the depopulated area of (b), the display area 12
The display target distribution lines are H, J, and 3 in total.
It becomes a distribution line. Therefore, the display priority level corresponding to the distribution line to be displayed is determined from the display priority information table defined in 5 in FIG.

Unfortunately, in the overcrowded area of (a), there are 10 distribution lines to be displayed, so the display priority level is 1.

From now on, the display items will be the display elements with display priority level 1 shown in Figures 4, 5, and 6, and only the overhead lines and couples of the section, and the remote control switch symbol of the switch will be displayed. Targeted.

Furthermore, in the depopulated area of (b), there are three distribution lines to be displayed, so the display priority levels are 1 and 2.3. From this point on, the display items will be display elements with display priority levels 1 and 2.3 shown in Figures 4, 5, and 6, and in this example, all display elements of the power distribution system equipment will be displayed. Ru.

FIG. 9 shows an example of changing the display scale. In Figure 9(a),
If the display area is designated as 11 in FIG. 9 in the same way as above,
The displayed distribution lines are A, B, C, and D.

E, F, G, N, O, P, making a total of 10 distribution lines.

Next, in Figure 9(b), if you change the display scale and change the display area to 12 in Figure 9, the target distribution lines to be displayed will be C, D, and P, making a total of 3 distribution lines. .

Therefore, in the display area 11 of FIG. 9, there are 10 distribution lines to be displayed, and the display priority level is 1. From now on, the display items will be the display elements with display priority level 1 shown in Figures 4, 5, and 6, and only the overhead lines and couples of the section, and the remote control switch symbol of the switch will be displayed. Targeted.

In addition, in the display area 12 of FIG. 9 where the display scale has been changed, there are 3 distribution lines to be displayed, and the display priority levels are 1,
It becomes 2.3. From this point on, the display items will be the display elements of display priority level 1.2.3 shown in Figures 4, 5, and 6. In this example, all display elements of the power distribution system equipment will be displayed. Ru.

In this way, when the display information is dense, only the information with a high display priority level is displayed, and when the display information is coarse, information with a low display priority level is displayed.

According to the method of the embodiment described above, it is possible to suppress the display information displayed on the screen depending on the density of the information to be displayed.

In the above embodiment, the area for each distribution line is defined as a rectangle, but FIG. 10 shows an example in which the area for each distribution line is defined as a polygon. Here, when determining the density of display information, the specified display area and the polygon for each distribution line are evaluated, the display priority level is determined in the same way as in the previous example, and the display elements of the display item are extracted. Display.

[Effects of the Invention] As explained above, according to the present invention, when a display area is specified, the amount of information displayed on the screen is changed depending on the density of display information in the area to be displayed on the screen. , it is possible to quickly display distribution line diagrams that meet the requirements for easy-to-see viewing when displaying wide areas, narrow areas, congested areas, and depopulated areas, and enables accurate and smooth operation work. can.

[Brief explanation of drawings]

Figure 1 is a configuration diagram of an embodiment of a distribution system monitoring device according to the present invention, Figure 2 is an example of the configuration of a distribution line area file and information on each distribution line area, and Figure 3 is an expanded display item for distribution lines. Figure 4 is a diagram showing the relationship between configuration classification and priority when the display item is a display item or section, and Figure 5 is a diagram showing the relationship between configuration classification and priority when the display item is a switch. , 6th
The figure shows the relationship between configuration classification and priority for various display items, Figure 7 shows the display area divided into congested areas and depopulated areas, and Figure 8 shows distribution system equipment. An example of the configuration of the display priority information table, FIG. 9 is a diagram displayed by changing the display scale, FIG. 10 is another example in which the area for each distribution line is displayed as a polygon, and FIG. 11 is a diagram FIG. 1 is a configuration diagram of a power distribution system monitoring and control system. 1... Central monitoring and control device 2... Terminal device 3...
・Display area input means 4...Density determination means 5...
Area storage means 6...Display target information selection means 7...Distribution system equipment display priority information table 8...
Distribution system equipment storage means 9...display means 10...display device 9

Claims (1)

[Claims] In a power distribution system monitoring device that uses a computer to monitor equipment in a power distribution system that has been installed over a wide area, there is a means for storing the geographical areas of geographically distributed equipment for each distribution line, and A means for assigning priority for display and storing it for each distribution line, and when a specific area is designated for display, determining the density of display information in that area and displaying it according to the degree of density. A power distribution system monitoring device comprising: means for selecting target information; and means for displaying the selected display target information.