JPH0514942B2 - - Google Patents

Description

[Detailed description of the invention] A. Industrial application field The present invention is applicable to electric power, gas,
It is a graphical display device in which a graphic CRT display device is connected to the terminal side of business processing equipment in fields where operational work is performed using equipment such as water supply and communication lines, and is particularly suitable for displaying equipment targeted for operational work. The present invention relates to a graphic display device having characteristics.

B. Summary of the Invention The present invention provides a graphic display for the terminal side of a business processing device in the field of operating business using equipment such as electric power, gas, water, communication lines, etc. installed over a wide area.
In a graphic display device connected to a CRT display device, internal detailed information is displayed in the corner of the screen according to the display instructions for the item displayed as a symbol, and the correspondence of the equipment selected among these displayed information is displayed. By realizing this connection, operations can be performed efficiently.

The present invention will be described below using an example of application to a power system, particularly a power distribution system.

C. Conventional technology Graphic CRT display devices have been
They are mainly used for offline work such as creating and modifying figures in fields such as CAD, CAM, and CAE, but recently their use as terminal devices for online systems has been increasing.

For example, in a centralized power distribution system monitoring and control system, a central computer serving as the master station processes a large amount of information from a group of slave stations, and Ohma's visual perception, judgment, and creativity are used to process this information. A graphical CRT display is provided that interacts with the computer to enable rapid and accurate on-line processing.

In this centralized monitoring and control system, the graphic CRT display device that serves as the terminal device is required to have the following two points in terms of function and performance compared to conventional ones.

(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 also be performed quickly.

(2) Wide area support: Since the online system operates on 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 been adopted as a graphic display system. As shown in FIG. 3, in this system, a graphic CRT display device 1 having a computer 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 communication line. Using this host computer system 2 as a master station, the slave stations collect various types of monitoring information in real time, display necessary display information on the graphics CRT display device 1, and receive commands from the graphics CRT display device 1 side and the host A centralized monitoring control system is realized by a configuration in which control information automatically processed by the computer system 2 is 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,
A distributed processing system is adopted in which the computer in the graphic CRT display device 1 on the terminal side performs 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. 3 will be described in detail below.

The graphic CRT display device 1 performs refresh drawing using a raster scan display method.
It has a CRT monitor 3, a display processor 4 as a control center, and graphic information (information such as line segments, symbols, characters, etc.) to be displayed is stored in a segment buffer ₅₁ . The graphical information stored in the segment buffer ₅₁ includes individual graphical elements located at the lowest level (data type, display position, display color, etc. that specify the displayed graphic) SD, as shown in the logical relationship in Figure 4. and the attributes (visible attributes, visible attributes,
It is configured into a tree structure by attribute elements SP that define detection attributes, etc.).

From the graphic information stored in the segment buffer ₅₁ , graphic information in a range (rectangular area determined by coordinate values) required to be displayed is cut out. This cutting process includes a matrix calculation processing unit 5 ₂ that performs parallel translation and rotation transformation of the displayed figure;
A clipping processing unit ₅₃ is provided for removing portions of the CRT monitor 3 that extend beyond the displayable screen frame.
Furthermore, a digital differential analysis (DDA) processing section ₅₄ is provided which develops the cut out graphic information line segment from the display position (coordinate position) into bit on/off information on the frame buffer 6 corresponding thereto.

The frame buffer 6 is physically a memory that has bits that correspond one-to-one to each pixel on the screen of the CRT monitor 3. For color display, it has multiple bit planes and uses the lookup table 7. to determine the display color.

Returning to FIG. 2, the host computer system 2 uses the host computer 8 as a control center,
As one of the processing functions of online processing, data processed with graphic information is divided into appropriate formats and stored in an auxiliary storage device 9 such as a magnetic disk, and graphic information within the range required by the graphics CRT display device 1 is transferred to the interface. Ace 10, 11, transmission line 1
The received data is transmitted to the graphic CRT display device 1 through the communication line 2, and the received data is stored in the segment buffer ₅₁ in the graphic CRT display device 1.

By the way, when displaying a power system diagram, for example, a power distribution system diagram, on a Graphics CRT display, a street map is superimposed on it to facilitate correspondence with the field. The following problems arose regarding the operation of the switches of the middle equipment. The equipment has multiple switches inside, but because it is sometimes buried underground, it is compact in size. In actual operation work, each switch in the underground equipment is the target of operation, but if each switch is displayed on the screen, it becomes impossible to correspond to the street map, so operations must be performed while coordinating with the site. It becomes difficult to move on. Therefore, conventionally, when displaying a power distribution system diagram, symbols for underground equipment were displayed, and instructions for internal switches were displayed by switching screens or by displaying them separately on other display devices. I was trying to do it from However, with this method, the switch must be operated under conditions where it is difficult to determine how the underground equipment is located in the power distribution system, which reduces operability and increases the risk of accidents. Unable to quickly respond to various operational tasks, including outbreaks.

D Problems to be Solved by the Invention The present invention has been made against this background. The object of the present invention is to provide a graphic display device that can be operated efficiently and that can quickly respond to various operational tasks, typified by the occurrence of an accident.

E. Measures to solve the problem Based on items that are displayed as simple symbols on the screen, for example, the internal detailed information display command of underground equipment, output the graphical data necessary to display the equipment wiring diagram of the underground equipment. an internal detailed information output section for
A device wiring diagram corresponding to the output signal from this internal detailed information output unit is displayed in a display window set in a corner of the screen where an equipment diagram, for example, a power distribution system diagram, is already displayed, and superimposed thereon. A multi-view port function section that erases the relevant equipment wiring diagram in the display window and displays the original power distribution system diagram by a deletion command, and a multi-view port function section that erases the relevant equipment wiring diagram in the display window and displays the original power distribution system diagram, and the equipment/facilities in the original power distribution diagram and the equipment/equipment in the equipment wiring diagram. This system includes an equipment/equipment correspondence department that realizes equipment correspondence.

F Effect For example, in the case where underground equipment is already displayed as a symbol in the power distribution system diagram, when a command to display detailed internal information of the underground equipment is input to the equipment wiring diagram output section, the equipment wiring diagram At the output section,
A device wiring diagram is automatically created based on the corresponding device wiring data. Based on the output signal from the device wiring diagram output section, the multi-view port function section displays the corresponding device wiring diagram in the display window at the corner of the screen. In this state, if you select equipment/equipment in the power distribution system diagram and enter the command into the equipment/equipment response section, the corresponding equipment/equipment in the underground equipment in the display window will blink to display the corresponding response. .
When the multi-view port function receives a command to erase the display window, the display window and the equipment wiring diagram therein are erased and the original power distribution system diagram is displayed.

G Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.
Reference numeral 13 denotes a control unit that controls data processing and the like when displaying equipment diagrams, for example, power distribution system diagrams, and its functions are distributed to the graphic CRT display device 1 and host computer 8 shown in FIG. Ru. This control unit 13 includes an equipment wiring diagram output unit 1 as an output unit for internal detailed information of underground equipment.
4, a multi-view port function section 15 and an equipment/equipment support section 16 are included. Device wiring diagram output section 14
consists of a memory 14 ₁ and a device wiring diagram creation section 14 ₂ . The memory 14 ₁ stores equipment connection data of underground equipment, and the equipment connection diagram creation section 14 ₂
When receiving a command to display detailed internal information of underground equipment, the system searches the memory ₁₄₁ for equipment wiring data corresponding to the underground equipment, and automatically creates an equipment wiring diagram based on the data. The multi-view port function unit 15 sets a display window in the corner of the screen where the power distribution diagram is already displayed, and displays the equipment wiring diagram corresponding to the output signal from the equipment wiring diagram output unit 14. At the same time, it has a function of erasing the device wiring diagram and displaying the original power distribution system diagram in response to a deletion command in the display window. Equipment/Equipment Support Department 1
6 has a function of associating the equipment/equipment in the original power distribution system diagram with the corresponding equipment/equipment in the equipment connection diagram. This association is performed, for example, by blinking the selected devices/equipment together. The frame buffer 6 expands bits based on the signal from the multi-view port function section 15 so that a device wiring diagram is displayed in the display window.
Also, based on the signal from the equipment/facility correspondence section 16, the bits are expanded so that they are displayed in correspondence. Regarding the size of the device wiring diagram, for example, the vertical length is variable depending on the number of connections, and the horizontal length is a fixed length that can display necessary information.

Next, the operation of the embodiment will be described.

For example, in the system shown in FIG. 3, the device wiring diagram output section 14 and the device/facility correspondence section 16 are provided on the host computer 8 side, and the multi-view port function section 15 is provided on the graphic CRT display device side. In such a system,
First, in response to a display command from the display processor 4, the power distribution system diagram stored in the segment buffer ₅₁ is displayed on the screen of the monitor 3 through bit development in the frame buffer 6. When a command to display detailed internal information of underground equipment A100, which is displayed as a symbol in the power distribution system diagram on the screen, is inputted to the host computer 8, the equipment wiring diagram output unit 14 outputs the information about the underground equipment A100. A wiring diagram is automatically created. When the multi-view port function unit 15 receives a signal corresponding to a device wiring diagram from the device wiring diagram output unit 14, it sets a display window in the corner of the screen where the power distribution diagram is displayed, and displays the device in the display window. Display the wiring diagram. FIG. 2 is a diagram showing a state in which a device wiring diagram of the underground device A100 is displayed, where a to d are power supply destinations, and e is a power reception source. For example, when a command to select distribution line b from among distribution lines a to d of underground equipment A100 is inputted to host computer 8, corresponding display section 16
Underground equipment A1 symbolized by
00 and the distribution line b of the underground equipment A100 whose internal state is displayed are selected, and the selected distribution lines b are displayed in association with each other by, for example, inspecting each other. Then, the instruction to delete the device wiring diagram is issued to the multi-view port function section 1.
5, the display window and equipment wiring diagram are erased from the screen of the monitor 3, and the power distribution system diagram hidden in the window is displayed. Also, if multiple underground equipment symbols are displayed and you want to view the equipment wiring diagram of another underground equipment while the equipment wiring diagram of one underground equipment is displayed, delete the equipment wiring diagram currently displayed. Display a new device wiring diagram. By displaying the equipment wiring diagram continuously in this way, it is possible to easily deal with the case where there is a plurality of underground equipment.

H. Effects of the Invention As described above, the present invention is capable of displaying on the same screen an equipment diagram such as a power distribution system diagram and internal detailed information of items symbol-displayed therein, such as equipment wiring diagrams of underground equipment. Furthermore, the selected equipment/equipment is displayed in association between the item displayed as a symbol and the internal detailed information of that item. Therefore, it is possible to easily determine in what form the item with the symbol is located in the equipment system, so for example, it is possible to operate the switch of underground equipment efficiently, and as a result, it is possible to easily identify the location of the item in the equipment system. It is possible to quickly respond to various operational tasks. In addition, if the display of internal detailed information is no longer needed, the display window and its interior can be instantly erased by an erase command, returning to the original equipment drawing.
It does not interfere with normal operations.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram showing an embodiment of the present invention, Figure 2 is a display diagram showing an example of a power distribution system, Figure 3 is a configuration diagram of a centralized monitoring and control system, and Figure 4 is stored in a segment buffer. FIG. 2 is an explanatory diagram showing the structure of graphic information that is displayed. 1... Graphic CRT display device, 2... Host computer system, 3... CRT monitor,
6...Frame buffer, 13...Control unit, 14
...Equipment wiring diagram output section, 15...Multi-view port function section, 16...Compatible display section.

Claims (1)

[Claims] 1 Graphic CRTs are installed on the terminal side of business processing equipment in fields where operations are performed using equipment such as electric power, gas, water, and communication lines installed over a wide area.
A display device is connected, and display information consisting of a display item group corresponding to the equipment and a display item group corresponding to map information such as streets and place names is stored in the storage device, and the stored display information is By specifying the area to be cut out and displayed, the equipment in that area can be mapped and displayed on a graphic CRT.
In a graphic display device that performs display on a display device, an internal detailed information output unit that outputs a signal corresponding to internal detailed information of an item displayed as a simple symbol on the screen based on an internal detailed information display command of the item. Then, a display window is set in the corner of the screen where the equipment diagram is already displayed, and internal detailed information corresponding to the output signal of the internal detailed information output section is displayed in this window, and the internal detailed information is deleted. The multi-view port function section erases the internal detailed information according to a command and displays the original equipment diagram, and the information is displayed between the symbol-displayed item and the internal detailed information based on the equipment/equipment selection command on the equipment diagram. A graphic display device comprising: an equipment/equipment correspondence section that displays selected equipment/equipment in association with each other.