JPS6225839A - Power system data display for receiving substation equipment - 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 provides an IJo method for displaying power system data for variable equipment monitoring and control, for example, a display method using a CRT.
It's something that can be done.

(Technical background of the invention and its problems) In the conventional graphical display of electric power systems, the status of equipment and measured values are displayed digitally (numerical display). Due to screen limitations, we had no choice but to prepare a separate screen. In other words, when controlling and measuring equipment on a graphic display screen of an electric power system, it is necessary to display not only the status and measured values of the relevant equipment but also the status and measured values of related equipment. Measured values can only be displayed numerically due to screen limitations, and it is impossible to display a bar graph of measured values on one screen. It was necessary to display the image by switching the screen or using another separate CRT. In this way, in order to display the measurement value bar graph display screen and the system graphic display screen on one CRT, it is necessary to switch the screen or use two CRTs, which makes the control operation complicated or the device The problem was that it was expensive.

[Purpose of the invention]

An object of the present invention is to provide a display method that does not require expensive equipment and is easy to control.

[Summary of the invention]

In the display method of the present invention, the screen is divided into a predetermined number of small screens of the same size, the system diagram is configured and stored as a combination of unit system diagrams corresponding to the small screens, and data regarding each of the devices is stored. A predetermined number of units are divided into a plurality of units, each of which is stored as device data to be displayed within one of the small screens, and when one device is selected, the selected device and its related devices are included. Configure a subsystem diagram with a unit system diagram to display using a predetermined number of subscreens at a predetermined position on the screen, while displaying equipment data about the selected device and its related devices on the remaining subscreens. It is characterized by display using part or all of the information.

[Embodiments of the invention]

FIG. 2 shows an example of an apparatus used to carry out the method of the invention. In the figure, 1 is a CR7 display device, which is used to display a system diagram and data of each device as described later. Reference numeral 2 denotes a keyboard, which is used for operations for controlling the display, for example, selecting equipment or controlling equipment. Reference numeral 3 denotes a data processing device, which includes a CPU and the like, and performs display control and the like. 4 is process l10 (input/output device)
It is used to input detection signals from the process and to control each device in the process.

FIG. 1 shows the data processing device 3 in detail.

As shown in the figure, this data processing device includes 1, a system diagram memory 11, an equipment data memory 13, and an intermediate buffer 15.
and an image memory 17.

In the present invention, the screen SS of the CR7 display device 1 is
As shown in the figure, a predetermined number of the same size (12 in the illustrated example)
) are divided into small screens 81 to 812 and displayed. The system diagram memory 11 stores a system diagram composed of a combination of 12 unit system diagrams corresponding to a small screen. Device data memory 13
divides the data regarding each device into a plurality of device data and stores each device data in a form that is displayed on one of the small screens 81 to 812.

Intermediate buffers are system diagram memory 11 and device data memory 1.
When the system diagram and device data are read from 3, they are stored once and then combined with each other.

The image memory 17 is composed of a refresh memory and CR
7. Image data to be displayed on the display device 1 is stored corresponding to each pixel of the display screen.

When displaying the system diagram using the entire screen SS, the display will be as shown in FIG. 4, for example. In this state, the entire contents of the image memory 19 correspond to the contents of the system diagram memory 3.

When one device in the system diagram is selected, a partial system diagram is created using the selected small screen and a predetermined number (for example, four) of unit system diagrams that include the devices in that small screen and devices related to this. A predetermined number (four) of small screens (87, 88, Sl
1.812). At the same time, device data regarding the selected device and devices related to it are displayed using part or all of the remaining small screens (81 to 86.89.810).

For example, when the device 52F16 in the small screen 812 in the system diagram in FIG. 4 is selected, the device 52F16 in the system diagram is selected.
and related equipment, 52F15.52F14.
A predetermined number (4) of unit system diagrams including 52S2 and 52B (
Small screen 87°S8.811 in Figure 4. (corresponding to Sl 2) to construct a partial system diagram and copy it into the intermediate buffer 15.

At the same time, device data (state of 1N device, measured values, etc.) regarding the selected vs@ and its related devices are stored in the intermediate buffer 15. When the contents of the intermediate buffer 15 are stored in the image memory 17 and displayed on the CRT display device 1, a screen display as shown in FIG. 5 is obtained.

In FIG. 5, as shown, small screens 87, 88, 811 . Sl 2 together form a partial system diagram display area SA that displays a partial system diagram.

On the other hand, on the small screen S1, the status and failure of the device 52S2 in the small screen 311 are displayed as shown in FIG.
1 is also used for controlling the device 52s2 (important control). Similarly, the small screen s2 is used to display and control the status of the device 52B in the small screen S7 in FIG. 4, and the small screen S3 is used for the device 52F1 in the small screen S1 in FIG.
The small screens S4 and S5 are used for the status, fault display and control of the device 52F in the small screen 12 in FIG.
15.52 Used for F16 status, fault indication and control.

The small screens 86, 89, and 810 respectively display the current, voltage, and power of the device 52S2 (natural secondary current, secondary voltage, biological 2
It is used for bar graph display and numerical display of measured values (power).

In addition, the device 52 in the small screen S1 in the system diagram of FIG.
When R1 is selected, a predetermined number, ie, 4, including the device 52R1 and related devices, ie, device T1, are selected in the system diagram.
unit system diagram (small screen 31, 82, 85, 8 in Figure 4)
6) to form a partial system diagram, and the above four small screens 87, 38, 811, and 812 display the partial system diagram. Along with this, the selected device 52
Device data (device status, measured values, etc.) regarding R1 and related device T1 are displayed on the remaining small screens 81 to 86,
Display using part of 89,810. As a result, a screen display as shown in FIG. 6 is obtained. That is, the small screen S1 displays the status and failure of the device 52R2, and this small screen S1 is used to control the device 52R1. Similarly, the small screen S2 is used for status, fault display and control of the device T1. Small screens S3 and S4 are machine 15
It is used for bar graph display and numerical display of the current and voltage (receiving current and receiving voltage) of 152R1.

To select a device, operate the cursor movement keys on the keyboard 2 to move the cursor to the small screen containing the device in the state shown in FIG. 4, and press the selection key on the keyboard 2.

Also, F! To control the S unit, in the state shown in Figure 5,
The user places the cursor on the small screen that displays the status of the device and operates the control keys on the keyboard 2.

FIG. 7 shows, when one device is selected in the above system, the operation for displaying a partial system diagram including that device and data regarding that device and devices related to it. Below, in Figure 4, equipment 52F16
An example will be explained in which the following is selected and a display as shown in FIG. 5 is performed.

First, the registration table (see Fig. 8 ) and extract numbers P(0) to P(3) of the unit system diagram including the unit system diagram and related equipment (102> In this example, the numbers P(0) to P(3) of the unit system diagram including the selected equipment are extracted. The number is 12, so P from the bottom row of FIG.
(0) to P(3)=7.8, 11.12 are extracted.

In addition, when unit system diagram 5 or 6 is selected, P(0) ~
All P(3) become 0FFH. In this case, as will be described later, by repeating the operation of returning from step 106 to step 104, the operation of selecting the small screen becomes invalid.

When one or more unit tree diagrams are extracted in step 102, for each of the extracted unit tree diagrams (104),
The operations of steps 106-116 are performed.

That is, first, the presence or absence of the 11 units in the unit system diagram is checked (106). P (n) (, n=0.1.2 or 3)
When is 0FFH, it means that there is no device, so the process returns to step 104.

When P (n) is not 0FFH, that is, when m devices are displayed in the unit system diagram, next refer to the table memory in Figures 9 and 10 to display the device data regarding that device. Then, the following device data selection operation is performed.

First, the unit system diagram number P(n> is used as an index,
With reference to the registration table of FIG. 9, device data numbers R(0) to R(3) of devices in the unit system diagram are extracted (108). In this embodiment, the maximum number of pieces of equipment data corresponding to one unit system diagram is four. In addition, in FIG. 9, entries other than the unit system diagram 7.8.11.12 (required to be displayed in the case of FIG. 5) are omitted. Further, in FIG. 9, for unit system diagrams 7 and 8, the equipment data is only No. 15 and only equipment data 20, respectively, and for unit system diagram 11, there are four equipment data 16, 17, 18.
19, two equipment data 21 for unit system diagram 12
．． There are 22.

Next, using numbers 15 to 22 of these device data as indexes, device data is extracted from the memory in FIG. 10 (the memory in FIG. 10 is the memory block to be displayed (
Only the parts corresponding to numbers 15 to 22 are filled in, and the other parts are omitted). This is steps 110-11
The operation of step 2 is performed by repeating the operations of steps 110 to 112 for each of the four device data R(0) to R(3) of each of the four unit system diagrams P(0) to P(3).

That is, first R(n) (n=o, 1.2 or 3) is 0FF
It is checked whether it is not H, that is, whether there is device data (112). If 0FFH, step 110
Return to If it is not 0FFH, the device data is extracted from the data memory in FIG. 10 using that number as an index (114), and the extracted data is transferred to intermediate buffer 1.
5 (116). Repeat the above steps 10
4°110), the process proceeds to step 120.

That is, the data of the partial system diagram (unit system diagram 7.8゜11.
12) is set in the intermediate buffer 15 (120). As a result, the intermediate buffer contains the unit system diagrams 7.8 and 11.1 containing the selected v1 data and its associated equipment.
This means that the data of the partial system diagram consisting of 2 and the device data 15 to 22 regarding these devices have been set.

Next, the contents of the intermediate buffer 15 are stored in the image memory 17 (122). Thereafter, the contents of the image memory 17 are displayed on the CRT display device 1.

These can be done by known methods.

〔Effect of the invention〕

- As described above, according to the present invention, the system diagram (partial system diagram) including the selected [cap] and the status of the selected equipment, measured values, etc. are displayed simultaneously on one screen. , operations for control, etc. become easier.

Furthermore, since one display device is sufficient, the device does not become expensive.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a data processing device that can be used to implement the method according to the invention, FIG. 2 is a block diagram showing a display system that can be used to implement the method according to the invention, and FIG. 3 is a block diagram showing a display system that can be used to implement the method according to the invention. Figure 4 shows an example of how to divide the screen into multiple small screens. Figure 4 shows an example of displaying a system diagram using the entire screen. Figures 5 and 6 show one part of the screen. Figure 7 shows an example where part of the screen is used to display a partial system diagram, and the rest of the screen is used to display device data. FIG. 8 is a flowchart showing the operation to perform the unit system diagram, and FIG. Figure 9 shows a table for extracting the device data number of the device in the unit system diagram using the unit system diagram number as an index. FIG. 1...CRT display device, 2...keyboard, 3...
・Data processing device, 4...B Ocess I10, 11...
・System diagram memory, 13...Equipment data memory, 15・
...Intermediate buffer, 17...Image memory. Applicant's Representative Sato - Figure 3, Figure 4, Figure 8, Figure 9, Figure 10

Claims (1)

[Claims] 1. A method for displaying a power system diagram of power receiving and substation equipment and data regarding each device on a screen, the screen being divided into a predetermined number of small screens of the same size, comprising and storing a combination of unit system diagrams corresponding to the small screens, dividing data regarding each of the devices into a plurality of units and storing each as device data to be displayed within one of the small screens; When one device is selected, a partial system diagram is constructed with a predetermined number of unit system diagrams including the selected device and its related devices, and a predetermined number of small screens at a predetermined position on the screen are used to create a partial system diagram. 1. A method for displaying power system data for power receiving and substation equipment, characterized by displaying equipment data regarding the selected equipment and equipment related thereto using part or all of the remaining small screen. 2. In the method described in claim 1, the data of the unit system diagram constituting the partial system diagram is extracted using a table indexed by the number of the unit system diagram including the selected device, and the data of the unit system diagram comprising the selected device is extracted. Extracting the number of a unit system diagram including the related equipment using a table indexed by the number indicating the equipment that was added, extracting the number of equipment data regarding the equipment to be displayed using the table indexed using the number of the unit system diagram, A method characterized in that equipment data is extracted using the extracted equipment data number as an index, and a screen is constructed by combining the data of the unit system diagram and the equipment data.