JPS6244009A - Power system/equipment monitor - 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 A. Industrial Field of Application The present invention relates to a power system comprising a graphic CRT display device ff1l as a terminal connected to a central monitoring and control device that performs centralized monitoring of the power system and equipment. This invention relates to a φ equipment monitoring device, and in particular to a power system/equipment monitoring device characterized by a display switching power type for power systems and equipment that are subject to centralized monitoring and control.

B0 Summary of the Invention The present invention provides a graphic C on the central monitoring and control device O terminal side.
In a power system/equipment monitoring device that is connected to an RT display device, a dedicated bit brain is used in the frame buffer to store the range of the power system diagram in which strong words should be displayed, and correspondingly, the normal By preparing a lookup table for display and a lookup table for highlighting, it is possible to easily identify the power line equipment range, power supply range, etc.

C0 Conventional technology Graphic CRT display devices have traditionally been manufactured using CAD, CA
Although it is mainly used for off-line operations such as creating and modifying figures in fields such as M and CAE, recently, its use as a terminal device for online systems has been increasing.

For example, in a prefectural power distribution system monitoring and control system, a central computer serving as a master station processes a lot of information from a group of slave stations, but this information processing VC has the cognitive ability of a fully visual human.
A graphical CRT display is provided that interacts with the computer to enable quick, accurate online processing using judgment and creativity.

Congratulations on this concentration In the 11flJ# system, the graphic CRT display device that becomes the terminal device is required to have the following two points in terms of function and performance compared to previous devices.

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

(2) Support for a wide area...Since the online system is operated for equipment installed in a wide area, it is necessary to support a wide display area according to display requests!
! Capable of displaying range I211ft.

In order to cope with this demand for fet', a system configuration called an intelligent terminal type is adopted as a graphic display system.

In this system, as shown in FIG. 9, a graphic CRT display device l having a combinator is used as a terminal side, and a host computer system 2 in a central monitoring and control unit is connected to this terminal side through a direct line. This host combinator system 2, as a master station, collects in real time information on each AI supervisory information of the slave stations and displays the necessary display information on the graphic CRT display [1]. A centralized monitoring control system is realized by a configuration in which commands from the host combiator system 2 and 9IIIH information are automatically processed by the host computer system 2 and transmitted from the host combinator system 2 to the slave station side.

In this configuration, the host combiner system 2 performs a large amount of arithmetic processing or data processing, and the terminal side graphic CRT display device! A distributed processing system is adopted in which the computers in 21 perform display processing, thereby reducing the load on the host computer system 2 while improving responsiveness on the terminal side. The graphic display process in the configuration shown in FIG. 9 will be described in detail below.

The graphic CRT display device 1 has a CRT monitor 3 that performs refresh drawing using the rusk scan display power method, and has a display processor 4 as the control center, and displays graphical information (line segments, symbols, characters, etc.). information)
is stored in the segment buffer 51Ic. The graphic information stored in the segment buffer 51 is composed of individual graphic elements located at the lowest level (data type 9 display position 1 display color etc. that specifies the display figure) SD, as shown in the logical relationship in FIG. It is configured in a tree structure by attribute elements SP that are located above these graphic elements 8D and define attributes (visible attributes, detected attributes, etc.) of each graphic element.

From the graphic information stored in the segment buffer 51, graphic information in a range (a long sword-shaped area determined by coordinate values) required to be displayed is cut out. For this cutting process, a matrix calculation processing section 52 that performs parallel translation and rotational transformation of the displayed figure, a clipping processing section 55 that removes the portion that protrudes from the displayable screen frame of the CRT monitor 3, etc. are prepared, and the cut out figure The information line segment is displayed at the display position (
Sitting position 1! A digital differential analysis (ODA) processing unit 511 is provided which expands the information into on/off information of the corresponding bit on the frame buffer 6.

The frame buffer 6 is physically a memory that has a 1:1 correspondence to each 1i11iX on the CRT monitor 3 screen.
WL and lookup table 7'l history determine the display color.

Returning to FIG. 9, the host computer system 2 serves as the first section under the control of the host computer 8+t-, and as one processing function of online processing, it divides the collected data into an appropriate format and converts it into magnetic data. Store it in an auxiliary storage device such as a disk, and display it on a graphic CRT display f.
The graphical information in the range requested from f1l is transmitted to the graphic CRT display device 1 through the communication lines of the interfaces 10 and 11 and the transmission line 12, and
The T display device 1 stores the received data in the segment buffer 51.

By the way, in a power system equipment monitoring device having such a function, when displaying a power system diagram, such as a distribution system diagram, on a graphic CRT display device, a plurality of wiring lines are to be displayed, and these distribution lines It has a complex and interconnected structure. For this reason, it becomes difficult to identify the equipment range and power supply range percentage of a specific power distribution line indicated by the indicator. The distribution lines that are displayed next include overhead distribution lines and underground distribution lines, and although these lines are installed overhead and underground, they may appear very close together on the screen. Ap1 identification becomes difficult.

-For example, in the operation of power distribution systems, it is very important to identify the power supply range of a certain power distribution line.
For this reason, in the past, operators had to follow the screen with their eyes to confirm the power supply range. However, such work is extremely inefficient because identification is difficult as described above1,4! If you were not an ilR person, you could not distinguish between occupations.

D0 Problems to be Solved by the Invention The present invention was created by VC against this background, and it is possible to easily solve the entire power supply range and equipment range of the power system.
The purpose of this invention is to provide a power system/facility monitoring device that can extend up to 1 m.

Means and operation for solving the E0 problem The present invention configures a frame buffer with a group of bit planes for color information and a bit plane for emphasis information, and uses 9! For the single-word pan range, bits are expanded into a bit plane group for color information and bit planes for emphasis information, and for other ranges, bits are expanded only into a bit plane group for color information.
A look-up table for normal display that defines a display color in accordance with a combination value of off and off of bits of a bit plane group for color information, as a look-up table;
For addresses whose bit plane bits for emphasis information include a signal corresponding to figure information, the same display color as the lookup table for normal display is specified, and for other addresses, the display color for color information is specified. For addresses that contain graphics information in the bit plane bits, a lookup table for highlighting that specifies a single color is prepared.The replacement part of the 0 table converts the table to be referenced into a lookup table for normal display. By clearing the screen, the power distribution system diagram displayed on the entire screen will be displayed in its original display color.

Here is the lookup table for gI tone display! In other words, the range to be emphasized in the power distribution system diagram is displayed in the original display color, and the other ranges are displayed in a single color.

F. Example of actual ownership An example of actual ownership when displaying a power distribution system diagram will be explained below using drawings.

In the practical example shown in FIG. 1, the frame buffer 6 consists of a bit plane 1 for emphasis information and bit planes 2 and φ3 forming a hit frame group for color information. The bit planener 1 for emphasis information is for storing the range to be emphasized in the distribution system diagram by bit expansion, and a bit "1" signal is stored at a position corresponding to the information. . This bit plane l is dedicated to the to-be-emphasized range, and generally, if the number of dedicated bit planes is N, the maximum number of emphasis types is 2N-1. Bit Planer 2 for color information
．． 3 is for storing the power distribution system diagram to be displayed, including the range to be emphasized, as bit-expanded color information.

For this bit expansion, bitplane +2, ◆3
At the position corresponding to the information on each side of , the bit plane ÷ 2. is calculated according to the color information. It is expanded as a combination of on/off bits of +3.

Furthermore, the segment buffer 51 of the graphic CRT display device 2 shown in FIG. 9 stores a look-up table 7o for normal display and a look-up table 71 for highlighted display, as shown in FIG. However, in FIG. 9, the lookup table 7 is drawn outside the segment buffer 51 for convenience of illustration). The lookup table 7o for normal display is Sorry (red), G (green), B (responsibility).
The display color is determined by the combination of beam outputs,
In the example shown in Figure 1, the three colors of red, green, and back are defined by setting the combinations of R, G, and 8 outputs as (100), (010), and (001), respectively, and furthermore, the combination of (OoO) The background color, black, is specified. In this lookup table 7o, i8 selection of combinations of R, G, and H outputs is performed using the on-fist-off combination value of the bits developed in pit brainers 1 to 3 as an address. The bit plane φ2 for color information is set regardless of the combination of on/off bits of the bit brainer 1 for the bit plane φ2. The display color is defined in accordance with the on-off combination value of the third bit. Regarding the lookup table 71 for *xi as well, selection of the combination of R, G, and B is performed using the on/off combination value of the bits developed in bit planes φ1 to φ3 as an address. For addresses that include a signal corresponding to graphical information, for example, a signal of "1" only in the bit brain ≠ 1, the same display color as the lookup table 7o for normal display is specified, and for other addresses, pit brainer 2. 3. A single color, for example white, is used for addresses containing the number 0, which corresponds to graphic information. Reference numeral 13 denotes a table switching unit provided in the graphic CRT display device, in which two lookup tables 7oaTl are provided.
The lookup table referenced between O is switched. Note that if there are multiple types of emphasis, lookup tables for highlighting are prepared correspondingly.

The effect of the above-mentioned embodiment will be explained below.

For example, in the system shown in FIG. 9, a graphic CRT display [
A predetermined power distribution system diagram is stored in advance in the segment buffer 51 of 11, and when commands such as display, emphasis, cancellation, etc. from the host computer 8 are input into the graphics CRTf[1], the display command from the display processor 4 Predetermined processing is performed. Now, when a command is issued to display the power distribution system diagram of a certain area in its original display color, the bit plane printer will display the area to be emphasized on the power distribution system diagram.
The entire power distribution system diagram, including the areas to be emphasized, is expanded to Bit Planer 2. ◆3 is bit expansion corresponding to color information. The table switching unit 13 switches the lookup table for normal display to the normal display lookup table 7ok, and the frame buffer 6 is raster scanned. As a result, the look-up table 7o uses the on/off combination value of the bits of each bit brainer l to φ3 as an address.
The display color is selected from , and the power distribution system diagram is displayed in the original display color.

After that, when performing v8, the table to be referred to by the table switching unit 13 is set to lookup table 7xK!
; IJ replacement worker performs raster scan on the frame buffer 6. In this lookup table 71, the original display color is defined for addresses where only the pit brainer 1 bit is "1", and for addresses other than n, bit plane ÷ 2. The power bit of φ3 is rl
Since white is specified for the address J, the range of strong and \ is displayed in the original display color, and the other ranges are displayed in white. Also, to remove the emphasis, lookup table 7oK! , l:IDI>.

Here, examples of display of the distribution system diagram are shown in FIGS. 2 to 8. A-D in the figure is a power distribution line. FIG. 2 shows the origin range, which is a collection of equipment for the normal power supply form of the distribution line, and shows the range including the interconnection installation 111 with other distribution lines. FIG. 3 shows the power supply range, which is the range of equipment that is currently being supplied with power from the upstream equipment of the distribution line, and includes equipment linked to other distribution lines. Q: The linkage equipment mentioned above is an overhead switch that is a linkage point in overhead equipment.
Underground equipment is underground equipment that has a switch inside that serves as a linkage point (including if there is a consumer connected to the underground equipment). Here, power distribution lines can be classified into overhead systems and underground systems. For example, an underground system is displayed as a range within a frame as shown in Figure 4, and if you want to emphasize this underground system, it is expressed as the logical sum of the domicile range and power supply range of each distribution line of the underground system. For the range in which data is displayed, bits are developed into a bit plane group for emphasis information and a bit plane group for color information, and for other ranges, pits are developed only in a bit plane group for color information. By referring to the lookup table for highlighting, the range within the frame is displayed in the original display color, and the other range is displayed in white, as shown in FIG.

When a release command is issued, the range that was previously displayed in white will be displayed in its original display color. When emphasizing the Mayu fictitious system, similarly, as shown in Figure 6, the range expressed as the logical sum of the domicile range and power supply range in the fictitious system (range within the frame) is displayed in the original display color. The rest of the range is displayed in white. Furthermore, in the present invention, one of the currently displayed distribution lines may be specified and emphasized. In this case, the range of the logical sum of the domicile range and power supply range of the specified distribution xi is displayed in original color, and the other ranges are displayed in white. Figure 7 is A
It is a diagram showing highlighted display of power distribution lines, in which the range within the frame is displayed in the original display color, and the other range is displayed in white. 7th
81f'1 within the 1,000-dot line is originally the A distribution line, but it is currently being accommodated by the B distribution FJ, and S2 within the dotted line is
Originally it was the C distribution line, but it is currently more flexible than the A distribution line. FIG. 8 is a diagram showing a similar display example, and the dotted line S5 is originally the C distribution line, but it is currently the range that is being used as the A distribution line. Note that when highlighting other distribution lines while 1 distribution m is being highlighted, the highlighting may be continued without canceling the CM leg of the already highlighted distribution line.

G0 Effects of the Invention As described above, according to the present invention, a predetermined range of the power distribution diagram is displayed in the original display color, and the other range is displayed in a single color, thereby emphasizing the predetermined range. The ninth point is that it is possible to easily identify the equipment range of the distribution line, the power supply range, etc., and there is no need to follow it closely. By emphasizing not only the domicile range but also the current power supply range, even if the power supply range changes due to operation, it can be easily identified, making it easier for experienced workers to operate without worrying. . Moreover, to perform emphasis/cancellation, 71 frame buffer content change processing is required, so hz<, a dedicated frame buffer is used, and g of the lookup table is
Since this is carried out by the control process called "Juri hot", this control process is much faster than the bit expansion process, so the graphic information can be switched between strong & 14/cancelled at high speed.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the central/IA example of the present invention, Fig. 2 is a display diagram of the origin range, Fig. 3 is a display diagram of the power supply range, and Fig. 4 is a display diagram of the underground system. @Figures 5 to 8 are display diagrams showing examples of the Tani-tM ghost display, Figure 9 is a configuration diagram showing the cluster monitoring and control system, and Figure 1θ is the structure of graphic information stored in the segment buffer. ! FIG. DESCRIPTION OF SYMBOLS 1... Graphic CRT display device, 2... Host computer system, 3... CRT monitor, 4...
・Display processor, 51...Segment buffer, 6...Frame buffer, ≠1...Strong rJ!
4ti Chore bit plane, ÷2. ÷3... Bit brain for color information, 7... Lookup table, 70... Lookup table for normal display, 71
... Lookup table for gi-tone display, 8...
host computer, 13... table switching unit; Figure 2 Table 7 r ) Mia] α1161 formula n- Forcibly drunkenness Book I column, long E episode 7, strong auspicious aim display 4th column table jqco

Claims (1)

[Scope of Claims] A graphic CRT display device is connected to the terminal side of a central monitoring and control device that centrally monitors and controls power systems and power equipment, and a power system diagram is bit-developed in a frame buffer within the graphic CRT display device. In an electric power system/facility monitoring device in which a display color is selected from a lookup table based on the bit expansion, the frame buffer is configured with a bit plane group for color information and a bit plane for emphasis information. , For the range that should be emphasized in the power system diagram, bits are expanded into bit planes for color information and bit planes for emphasis information, and for other ranges, bits are expanded only into bit planes for color information. The lookup table includes a lookup table for normal display that defines display colors in accordance with combination values of on/off of bits in a bitplane group for color information, and a lookup table that defines display colors in accordance with combination values of on/off bits in a bitplane group for color information, and a For addresses that include a signal corresponding to graphic information, the same display color as the lookup table for normal display is specified, and for other addresses, graphic information is specified in the bit plane bit for color information. An electric power system/equipment monitoring device characterized in that a lookup table for highlighting that specifies a single color is prepared for addresses including addresses, and a table switching unit is provided for switching between these lookup tables.