JPH0621802B2 - Process display - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a process display device for displaying process data of a plant on a display device.

[Technical background of the invention and its problems] In order to monitor the operating state of the power plant, the main steam flow rate of the power plant, the turbine speed, the amount of power generation, the operation of the pump / motor, the opening / closing of the valve, etc., change momentarily Process amount,
As shown in FIG. 9, a systematic diagram is displayed on the process display screen A of the color CRT display device by pictorial representations such as digital numerical values, bar graphs, curves and figures.

However, there is a limit to the process information that can be displayed on one process display screen, and with the increase in the scale of power plants and the widespread monitoring and control of process computers,
There are a huge number of process display screens. Therefore, when the process information necessary for monitoring and controlling the plant spans a plurality of process display screens, the operator's screen selection operation becomes complicated. In addition, it becomes difficult to recognize the optimum process display screen for monitoring and controlling the plant that changes moment by moment. As a result, there is a possibility that quick response cannot be taken when the plant is abnormal, and there is a problem that the safe operation of the plant is hindered.

[Object of the Invention] An object of the present invention is to provide a process display device that reduces the burden on the operator by displaying the optimum screen necessary for monitoring and enables safe plant operation monitoring.

[Summary of the Invention] In order to achieve the above object, in the present invention, a part of a plurality of screens for displaying process data of a plant on a display device is extracted and reconfigured to be displayed as one new screen. A process display device is provided.

Further, the present invention provides a process display device configured to store the reconstructed screen and reuse it.

Further, the present invention provides a process display device configured to detect a plant event and automatically display a reconstructed screen.

Embodiment of the Invention FIG. 1 is a block diagram of a process display device showing an embodiment of the present invention. In the figure, the host computer 2 that inputs the process amount from the power plant 1, transmits the process data necessary for display and event detection to the process display device 13, and the process display device 13 that displays the transmitted process data. , Are connected via a transmission line 3 to a transmission control device 4 such as a modem or a data link.

The process display device 13 includes event detection means 6 for checking the occurrence of an event by checking transmission data such as process data input to the process input means 5 via the transmission control device 4 and stored in the storage device 8. There is. Also CRT
A screen creating means 10 is provided for creating, adding, and deleting the display information of the configuration screen that makes a plurality of display screen information one arbitrary display screen by operator input from the keyboard 12. Further, according to the display signal of the configuration screen from the event detecting means 6 or the screen creating means 10, thereafter, the process input means until the screen display or stop signal is again sent from the event detecting means 6 or the screen creating means 10. Five
Each time the process data is stored in the storage device 8 from the storage device 8, the screen display means 7 is provided for taking out the display information and the process data of the screen stored in the storage device 8 and creating and outputting the display data for displaying the process. ing. Furthermore,
The output data of the screen display means 7 is used as a color CRT display device 11
The display control device 9 has a well-known multi-viewport function for displaying.

The process display of the above-mentioned configuration screen is notified by the demand request from the operator to the screen display means 7 via the screen creation means 10 and by the event detection means 6 from the transmission data input to the process input means 5. When a plant event is detected, the display signal may be notified from the event detection means 6 to the screen display means 7, and the screen display means 7 may display the screen display information and the process from the storage device 8 by these display signals. The data is taken out and the process information is updated and displayed on the color CRT display device 11 via the display control device 9.

2 and 3 are flowcharts of the processes of the screen creating means 10 and the event detecting means 6 of FIG. Also,
FIG. 4 shows an example of the configuration display of a certain configuration screen. In this figure, the configuration screen N is divided into four arbitrary display areas, and each of the display areas (N _{1 to} N ₄ ) has a conventional configuration. Process display screens (a to d) display designation areas (a 'to
It is shown in the figure that the process displays of d ') are collectively displayed.

Conventionally, in process display, as display information on the screen, fixed part display information for displaying fixed parts such as the title of the display screen, equipment name and piping, and process information of the plant that changes from moment to moment are displayed as time information. There is a variable portion display information for displaying in the memory, and since the screen display information equivalent to the conventional one is required also in the configuration display of the process display screen in the present embodiment, this configuration example is shown in FIGS.
Shown in the figure. FIG. 5 shows a configuration example of a fixed part display information table 100 for displaying the configuration of the fixed part, and FIG. 6 shows a variable part display information table 20 for displaying the configuration of the variable part.
It shows a configuration example of 0. Further, FIG. 7 shows a configuration example of the event information table 300 for automatically displaying the configuration screen in the event of the plant, etc., each information table (100, 200, 300) is in the order of the configuration screen number in each configuration screen unit. Is set. The information tables shown in FIGS. 5 to 7 can be freely created, added, and deleted by the operator using the CRT keyboard 12 and the screen creating means 10.

The operation of the present embodiment will be described below by taking an example of the configuration display of the configuration screen N shown in FIG.

First, the screen creating means 10 for creating the display information of the configuration screens shown in FIGS. 5 to 7 will be described in detail with reference to FIG.
When the screen creating means 10 is activated by a request from the operator via the CRT keyboard 12, a screen for interactive operation for prompting the operator to register, delete, and display a configuration screen in the interactive operation screen display processing S21. Is displayed, and thereafter, in interactive input processing S22, the following data, which is the minimum required for registration, deletion, or display request of the configuration screen, is input by the CRT keyboard.

[When requesting registration of configuration screen] I) Configuration screen number II) Each display area for configuration display III) Each process display screen number displayed for configuration IV) Display designation area of each process display screen V) Event detection information [Configuration screen Delete request for configuration screen] I) Configuration screen number to be deleted [When display request for configuration screen] I) Configuration screen number to be displayed (1) The request from the operator is the registration request for the configuration screen as shown in Fig. 4. Input data will be as follows.

[When requesting registration of configuration screen] I) Configuration screen number → N II) Each display area for configuration display → N _{1 to} N ₄ III) Each process display screen number to be configured display → a to
d IV) Display designated area of each process display screen → a'to d'V) Event detection information → By inputting the above data, the fixed part display information table 100 shown in FIG.
Fixed part display information 100N corresponding to the request configuration screen (N) of
Display information (100N _{1 to} 100N) in each display area of the configuration screen.
₄ ) is set. In the variable part display information creation process S26,
6 Request configuration screen for variable part display information table 200 shown in FIG.
In the variable part display information 200N corresponding to (N), variable part display items of the configuration screen N are set as shown. The variable part display item of the configuration screen N is the variable part display information table (2) of each process display screen (a to d) configured and displayed on the configuration screen N.
00a to 200d), only the variable part display items displayed in the display designation areas (a 'to d') of the process display screens (a to d) are extracted, and the variable part display items 1 on the configuration screen N are extracted. It is set sequentially.

After that, if the event detection information (event detection priority and event determination condition) for automatic display by the event of the plant is input, in the event detection information creation processing S27, the event information table 300 shown in FIG.
The event detection priority and the event determination condition input in the event detection information 300N corresponding to the request configuration screen N are set, and in order to receive the next operator request, the process proceeds to the interactive input process S22.

(2) If the request from the operator is a delete request, the screen display information table (fixed part display information table 100, variable part display information table 200, and event information table 300) is input in the configuration screen deletion process S24. The fixed part display information, the variable part display information, and the event detection information corresponding to the request configuration screen are initialized, and the process proceeds to the interactive input process S22 to receive the next operator request.

(3) If the request from the operator is a display request, in the screen display request processing S23, the screen display means 7 is notified of the input display request for the configuration screen, and the screen creating means 10 is used to display the process. Ends the process in.

Next, the event detecting means 6 will be described in detail with reference to FIG. The event detecting means 6 receives the transmission data from the host computer 2, and every time the transmission data (process data etc.) input by the process input means 5 is stored in the storage device 8, the initialization processing S11 causes the occurrence of an event to occur. Presence information α,
Initialize β and configuration screen number I. Then, in the information input process S12, the event detection information (event detection priority and event determination condition) corresponding to the configuration screen I is retrieved from the event information table 300 set by the screen creating means 10, and the event determination process is performed. In S13, the transmission data corresponding to the extracted event determination condition is stored in the storage device.
Take out from 8 and check if the event judgment conditions are met.

Taking the process data transmitted from the host computer 2 as an example of the event determination condition, the following determination condition is raised.

(1) Example of analog value I) Analog value ≥ Specified value II) Analog value ≤ Specified value III) Specified value 1 <Analog value <Specified value 2 IV) Analog value 1> Specified value 1 and Analog value 2 <Specified Value 2 (2) Example of digital value I) Digital value ON II) Digital value OFF III) Digital value 1 ON AND Digital value 2 OFF.

Further, in the event determination processing S13, not only the event determination condition is satisfied as a condition for determining that the event is satisfied, but it is valid only when the following conditions are satisfied.

The condition of (Note 1) is to be effective only at the first event detection when the event determination conditions of the same configuration screen are continuously satisfied for multiple event detections.

The condition of (Note 2) is to display the event with the highest event detection priority (automatic display), as described later, when the event determination conditions of multiple configuration screens are satisfied in one event detection, as described later. This is to enable the one with a low event detection priority in the next event detection.

In the event priority determination processing S14, the event having the highest event detection priority among the established events is set as the current event occurrence, so that the established event has a higher event detection priority than other events that have already been established. If it is higher, the detected configuration screen number I and the detected event detection priority are respectively saved in α and β in the event information saving process S15, and the process proceeds to the detection end determination process S16.

In the detection end determination processing S16, it is checked whether or not the event detection of all the configuration screens designated for event detection is completed, the configuration screen number I is updated until it is completed, and the processing up to the above (S12 to S15) To repeat the information input process S1
Move on to 2.

After the above processing, if there is an event occurrence, in display status determination processing S17, the display status of the event occurrence configuration screen is checked, and if it is displayable (that is, process display), event display In the request processing S18, the screen display means 7 is notified of a display request for the configuration screen (stored in α) in which an event has occurred.

If displayable (that is, during interactive operation, etc.), alarm processing
By displaying the message that there is an event display of the configuration screen in S19 and the configuration screen number (the one saved in α) that should display the event in the predetermined location of the color CRT display device 11, the operator Prompts to display the configuration screen in which the event has occurred, and ends the process.

When the event detection means 6 or the screen creation means 10 described above notifies the screen display means 7 of a display request for the configuration screen N, for example, the screen display means 7 firstly fixes the fixed part stored in the storage device 8. The fixed part display information 100N of the requested configuration screen N is taken out from the display information table 100, the multi-view port is defined in the color CRT display device 11 via the display control device 9 based on the information, and the information is shown in FIG. Each fixed part is displayed as shown.

Then, the variable part display information 200N of the request configuration screen N of the variable part display information table 200 stored in the storage device 8,
The process information corresponding to each display item set in the variable portion display information 200N is taken out, and the display formation set in each display item (for example, as shown in FIG. 9) is performed as in the conventional process display. The process information is updated and displayed on the color CRT display device 11 with a bar chart, numerical values or figures. In addition, this processing is performed by the event detection means 6
Alternatively, the process is repeatedly performed every time the process data is input from the process input unit 5 and stored in the storage device 8 until the screen creation unit 10 again notifies the request to display or stop the screen.

In this way, it is possible to collect only the necessary display portions of the process display screens created in advance by a simple interactive operation by the operator and use them as one process display screen for monitoring and controlling the plant. With
The process display screen can be automatically displayed according to conditions such as arbitrary process data, which enables monitoring and control of a wide range of plants. At this time, by changing the sizes of the display designation areas (a ′ to b) of the process display screens and the display areas (N _{1 to} N ₄ ) on the configuration screen shown in FIG. It is possible to update and display the process information by enlarging or reducing the size of the process display screen.

FIG. 8 shows another embodiment of the present invention, which is an example in which the process display device 13 of FIG. 1 is incorporated in the host computer 2. As in the case of this embodiment, the process input means 5 may be directly input from the power generation plant 1 instead of inputting the process data by transmission, and the display control device 9 and the color CRT display device. A plurality of 11 may be provided so that each color CRT display device 11 can display different screens.

Note that the present invention can display anything such as an LED electronic panel and a large reflective screen instead of the color CRT display device 11 as a display device if the display control device 9 has a multi-viewport function. There is no problem even if there are multiple display devices. Further, instead of the CRT keyboard 12, an input device such as a screen selection switch, a light pen and a touch screen can be used as an operator's input device for selecting a display screen and creating a configuration screen.

[Effects of the Invention] According to the present invention, a part of the required display can be reconfigured by the operator from the process display screens stored in advance, so that the process information that spans a plurality of process display screens can be displayed. It is possible to obtain a display screen that can be displayed in a centralized manner and is easy for the operator to monitor the plant.

Further, according to the present invention, since the reconfigured configuration screen is stored, the operator does not need to edit each time, and frequent screen selection work for obtaining process information spanning each screen is reduced, Can respond to monitoring quickly.

Furthermore, according to the present invention, the event of the plant is detected and the reconstructed configuration screen is automatically displayed, so that the required screen can be obtained at the time when the operator feels.

Further, according to the present invention, when the reconstructed screen is automatically displayed, it is possible to determine the priority, and it is possible to automatically display more important information with priority.

Further, according to the present invention, by providing means for designating the area of the process display screen and means for designating the area in the composition screen to be reconstructed, the sizes of these areas can be changed and designated. It becomes possible, and it becomes possible to obtain process information by enlarging or reducing.

[Brief description of drawings]

FIG. 1 is a block diagram of a process display device showing an embodiment of the present invention, FIG. 2 is a flow chart of processing of a screen creating means shown in FIG. 1, and FIG. 3 is processing of an event detecting means shown in FIG. FIG. 4, FIG. 4 is a diagram showing a process display example of the configuration screen in FIG. 1, FIGS. 5 to 7 are configuration diagrams of various display information tables of the configuration screen in FIG. 1, and FIG. 8 is the present invention. FIG. 9 is a block diagram of a process display device showing another embodiment, and FIG. 9 is a process display screen diagram showing an example of a conventional system diagram display in a power plant. 1 ... Power generation plant, 2 ... Host computer, 3 ... Transmission line, 4 ... Transmission control device, 5 ... Process input means,
6 ... Event detection means, 7 ... screen display means, 8 ...
Storage device, 9 ... Display control device, 10 ... Screen creating means,
11 …… Color CRT display device, 12 …… CRT keyboard, 13…
… Process display.

Claims (7)

[Claims] 1. A process display device for displaying plant process data on a display device according to a plurality of process display screens stored in advance, combining a plurality of arbitrary regions of the process display screen designated by an operator, A process display device comprising: a screen creating means for creating a configuration screen configured as one screen; and a screen display means for displaying the process data on the display device according to the created configuration screen. 2. The screen creating means comprises means for designating an area of the process display screen and means for designating an area in a configuration screen for displaying the designated area. The process display device according to claim 1. 3. A process display device for displaying plant process data on a display device according to a plurality of process display screens stored in advance, combining a plurality of arbitrary regions of the process display screen designated by an operator, A screen creating unit that creates a configuration screen configured as one screen, a storage unit that stores the created configuration screen, and the process data is displayed on the display device according to the configuration screen stored in the storage unit. A process display device comprising: a screen display means. 4. The screen creating means includes means for designating an area of the process display screen, and means for designating an area in a configuration screen for displaying the designated area. The process display device according to claim 3. 5. A process display device for displaying plant process data on a display device according to a plurality of pre-stored process display screens, combining a plurality of arbitrary regions of the process display screen designated by an operator, Screen creation means for creating a configuration screen configured as one screen, storage means for storing the created configuration screen, and event detection for detecting a plant event from the process data and outputting a configuration screen display request. And a screen display unit for displaying the process data on the display device according to a configuration screen stored in the storage unit in response to the display request. 6. The screen creating means includes means for designating an area of the process display screen, and means for designating an area in a configuration screen for displaying the designated area. The process display device according to claim 5. 7. The event detecting means includes an event determining means for comparing the process data with a specified value preset for each of the configuration screens to determine an event, and an event determining means for each of the configuration screens. 6. The process display device according to claim 5, further comprising: an event priority determination unit that validates the display request of each of the constituent screens in accordance with the displayed display priority.