JPS58151609A - Method for displaying proceeding state of automatic operation of plant by computer - Google Patents

Abstract

PURPOSE:To grasp a proceeding state of a plant in details, by tabulating operating items corresponding to each plant state, storing them in a memory, selecting one of stages by a keyboard, and displaying a state of the plant on a CRT. CONSTITUTION:In accordance with a state of a plant 1, operation items in each stage are stored in an automatic proceeding control table 26 of a computer 2. When a switch of an automated proceeding panel 3 is depressed, a state signal SIN of the plant 1 is inputted to an operation logic processing part 23 through an input processing part 21. The processing part 23 fetches an operation logic table alpha from a storage part 22 in accordance with a variation of the signal SIN, decides success or failure of the condition, and outputs an operation command to the plant 1 through an output processing part 25, when the operating timing condition and the preoperation condition are set. In case when it is desired to see a proceeding state of the processing in this process, when a keyboard 4 is operated, seeing a CRT 5-1, an automated proceeding and processing part 27 fetches a present necessary operation item of a designated stage, from the table 26, and displays the proceeding state in each color on the CRT5-1, in accordance with whether the condition of the logic table alpha is set or not.

Description

DETAILED DESCRIPTION OF THE INVENTION (2) The present invention relates to a method for displaying the progress of an operation on a display device when automatically operating a plant using a computer.

[Technical background of the invention and its problems]

In order to operate a plant, for example, a thermal power plant, it is necessary to operate a large number of devices constituting a derailleur, turbine, and generator system in a predetermined order and in coordination with each other. However, this operation is complicated,
It is complicated, requires a large number of operators, and can only be operated with a certain amount of experience. For this reason, recently a method has been adopted in which computers are used to operate and operate Norant equipment in place of operators. However, fully automated computer-based operation of large-scale plants such as thermal power generation plants and nuclear power plants poses safety and management problems, so the series of operation and operation processes is divided into multiple stages. However, each time the operation of one stage is completed, the operator checks the progress of the plant and then has the computer perform the operation of the next stage.

In other words, the series of operations performed by the 1 liter rice bowl machine for Silane I are as shown in Figure 1:
It is divided into a plurality of stages A, B, C, etc. such as "deila ignition preparation", "1 ignition", "temperature increase", etc. Each stage has 1 fuel control valve initial opening setting for the combustion system.
Multiple operation items a1... aM% b 1.
...bN, C1...eo are included. Further, each operation item is stored in the computer as an operation logic table α consisting of a plurality of operation timing conditions a111, . . ., pre-operation conditions a1□, . . ., operation completion conditions a131, . Therefore, when a change occurs in the plant status signals that are input to the computer from various parts of the plant, the corresponding operation logic table α is retrieved from the memory, and the timing and preparation for the operation of that operation item are determined. This is done by checking whether the operation timing conditions and pre-operation conditions written in the table are input using the no-rant status signal, and if the conditions are met, an operation command is issued to the plant. The driving operation for that operation item is performed. Further, as a result, a change occurs in the plant status signal, and if the operation completion condition is satisfied, the processing of that operation item ends.

For example, by performing such processing on all the operation items that are required according to the plan I and status of stage A at that time, once the processing of stage A is completed, the next stage can be started with the confirmation of the operator. Proceed to process B. This confirmation operation is performed as follows.

That is, on the operation/main panel, illuminated pushbuttons displaying the names of each stage are arranged in the order of progress of plant operation operations, and when the processing of stage A is completed, the pushbutton of the next stage B is lit. Flicker.

When the operator presses the Furi/Power pushbutton to give permission for the computer to process Stage B, only the flickering stops and Stage B processing is performed as described above.
1. Next, when this process is finished, press ? 4. In this way, when automatically operating a plant using a computer, the progress state can be determined at the stage stage. . However, it is not easy to determine which operation items in stage (5) currently being processed have been completed, which items are currently being executed, and which items remain. In this case, for the operation items during the stage, it may be possible to display the progress status by providing a lamp indicator as in the case of the stage, but as mentioned earlier, the operation during each stage is necessary. The items to be operated differ depending on the Zorant conditions at the time, for example, when starting after a long period of stoppage or when restarting after a short period of stop.1 Therefore, the operation items are selected depending on each condition. However, if the progress status were to be displayed using illumination to make it easier to read, a large amount of panel space would be required, making it impossible to obtain a practical control panel.

In this way, with conventional plant automatic operation technology using computers, it is not possible to accurately judge the progress status of each operating end of the plant, leaving most of the judgment to the operator's judgment ability, and in the end, many meters etc. A large number of operators were tasked with constantly monitoring the operation and determining the progress of the operation, which posed the problem of preventing autonomous operation by a small number of people.

[Purpose of the invention]

The present invention provides a display that allows the operator to determine at a glance what operations are about to be automatically performed on the current stage, which operations have been completed, and which operations have not yet been performed, via the display device. The purpose is to provide a method.

[Summary of the invention]

In order to achieve this objective, the present invention makes it possible to predict in advance the operation items required at each stage depending on the plant status at the time. When the operator selects one of the stages via the key date, the computer determines the plant status at that time based on the Zorant status signal input so far, and selects the operation items according to the Zorant status. , refer to the operation logic table corresponding to that operation item, and satisfy each condition in that table.
By determining whether the operation item is not established, the process of determining the progress status of the operation item is performed for all necessary operation items in the stage, and the process is displayed on a display device such as a CRT or typewriter. do.

[Embodiments of the invention]

Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 2 shows a configuration diagram of an automatic plant operation system according to an embodiment of the present invention, in which 1 is a plant, 2 is a computer, 3 is an automation progress panel, 4 is a key, and 5-1 ．．
5-2 is a CRT display, and 6 is a printer.

The blocks in the electronic computer 2 represent functional blocks of the computer, and 21 is an input processing section that takes into the electronic computer 2 the Zorant state signal S4 representing the state quantities of various parts of the plan l-1.

22 is an operation logic table storage unit, and each operation logic table α has one operation item written in a state defined by AND and OR logic of operation timing conditions, pre-operation conditions, and operation completion conditions.

Reference numeral 23 denotes an operation logic processing section, which takes out a related operation logic table α according to changes in the plant state signal 81N inputted through the input processing section 21, and determines whether each condition is satisfied.

Reference numeral 24 denotes an information processing section which displays and outputs the operation logic table α processed by the operation logic processing section 23 on the CRT display 5-2 or the printer 6.

Reference numeral 25 denotes an output processing section which, based on the determination result of the operation logic processing section 23, issues an operation command S when the operation timing condition and pre-operation condition of one operation item are satisfied, but the operation completion condition is not satisfied. Output UT to plant 1.

Reference numeral 26 denotes an automation progress management table, which stores a table of required operation items corresponding to each plant state at each stage.

Reference numeral 27 denotes an automation progress display processing unit that finishes the moxibustion operation item based on the operation item obtained from the automation progress management table 26 and the operation logic table α obtained from the operation logic table storage unit 22 corresponding to the operation item. , determines whether it is unfinished, and displays the CRT
The output is displayed on the display 5-1.

FIG. 3 shows a detailed diagram (9) of the automation progress display processing unit 27, which shows the dialogue processing unit 271 which processes requests from the operator inputted via the key 4 and the dialogue processing unit 271. a progress display processing section 272 that inputs information requested by the operator from the processing section 271, inputs matching progress display data from the automation progress management table 26, and outputs it for display on the CRT display 5-1; and a management table change processing unit 273 that modifies the automation progress management table 26 when the automation progress method changes due to the adjustment in step 1.

FIG. 4 shows a specific example of the automation progress panel 3 provided to reflect the operator's judgment in the operation of an automated power generation plant. For example, the operation of the plant starts from ``boiler pressure increase'' in the diagram, and then sequentially changes to ``boiler ignition preparation,'' 1 ignition,'' and ``temperature increase.'' Each stage such as "boiler boost" in the figure is composed of an illuminated push button switch. For example, if it is decided that boiler boost can be started as a no-run condition, the "boiler boost" push button (C10) will flicker. Then, the system waits for the operator's permission to start "boiler boosting", that is, for the push button switch to be pressed. Therefore, when the operator presses this push button switch, the computer 2 starts automatic operation of each operation item of the next stage, ``preparation for ignition'', which only turns on the lamp. Further, when the processing of each operation item is completed and the "ignition preparation" is completed, the push button switch turns off.

With the above configuration, automation progresses and pretends to be on the armpit 3.

By pressing a push button switch, automatic operations for each operation item of that stage are performed by the computer 2 according to the plan input from the plant 1 via the input processing unit 21) and changes in the status signal S. Accordingly, the corresponding operation logic table α is stored in the operation logic table storage unit 22.
O is output, the operation logic processing unit 23 determines whether the condition is met, and when the operation timing condition and pre-operation condition are met,
The operation command is output to the plant 1 via the output processing section 25. The operation result is the plant status signal S
As a result, if the operation completion condition is satisfied, the processing of that operation item will not end, and such processing will be performed for all operation items currently configuring that stage, When all of these operations are completed, the output processing unit 25 outputs the result for proceeding to the next stage described above to the automated operation i4 channel 3.4-6 The computer 2 performs such automatic driving operation. If the operator wishes to view the progress of the operation item processing during the process, he or she operates the key 4 while looking at the CRT display 5-1. That is, first select the phase of the plant state you want to see, start or stop. For example, if you select start, the CRT
Each stage shown in FIG. 5 is displayed on the display 5-1. When the keyboard 4 is operated to select, for example, "7? Boiler ignition preparation" from the list of displayed stages, the CRT display 5-1 will show the current plant's "boiler ignition preparation" as shown in Figure 6. At the same time, the items necessary for the "Preparation" driving operation are displayed, and the progress status of each operation item is displayed in different colors.

That is, since the automation progress management table 26 in FIG. 2 knows the current Grand I status based on the plant status signal input via the input processing unit 21, the automation progress management table 26 in FIG.
When the stage "7 is ready for ignition" is keyed in, the automation progress display processing unit 27 retrieves the operation items currently required for that stage from the automation progress management table 26 and performs operations corresponding to the operation items. The operation logic table α is retrieved from the operation logic table storage section 22. Next, a display color corresponding to the progress state is determined as shown in FIG. 7, depending on whether each condition of the retrieved operation logic table α is met or not. In other words, if each condition is not satisfied and the operation is not yet completed, the color is white; if the operation timing has been reached but the pre-operation conditions are not satisfied, the color is green; when both conditions are satisfied, the operation command is output from the plant 1 from the processing unit. Yellow when the operation item has been issued, red when the operation completion condition is not satisfied even after the predetermined time TD has elapsed, and cyan when the processing of the operation item is completed. After such processing, 17 prepares for ignition.
The results are color-coded as shown in FIG. 6 and displayed on the CRT display 5-1.

Therefore, by looking at the screen of the CRT display 5-1, the operator can see at a glance which operation items have been completed, which ones are currently being executed, and which operation items remain. Moreover, if a problem occurs in the plant and progress is slow, you can easily understand the operation items, and if you want to know the cause in detail, you can display the operation logic table on the CRT display.
By displaying the error in -1, the cause can be understood in detail. As a result, the plant can be automatically operated more smoothly and safely by computers.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to display the progress status of operation items according to the plant status, which has been considered difficult in the past, on a CRT.
The present progress status of the plant can be grasped in detail using a computer. As a result, the plant can be automatically operated smoothly and safely using computers.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the process of automated plant operation using a computer, Fig. 2 is a block diagram of a plant operating device according to an embodiment of the present invention, and Fig. 3 is a detailed diagram of the automation progress display processing unit shown in Fig. 2. Figure 4 is an explanatory diagram of the automation progress/9 channels in Figure 2, Figure 5 is an explanatory diagram of the stages displayed on the CRT display in Figure 2, and Figure 6 is the CRT display in Figure 2. FIG. 7 is a time chart for displaying the operation items shown in FIG. 6 in different colors according to their progress. 1...Plant, 2...Electronic computer, 3...Automation progress A': + key, 4...key is - de, 5-1.5-
2... CRT display, 6... Printer, 21...
Input processing section, 22... Operation logic table storage section, 23.
...Operation port sock processing section, 24... Information processing section, 25
... Output processing unit, 26... Automation progress management table, 27... Automation progress display processing unit, 271... Dialogue processing unit, 272... Progress display processing unit, 273... Management table change processing section.

Claims (1)

[Claims] A series of operating processes in a plant is divided into a plurality of stages each consisting of a plurality of operation items, and each operation item is defined by the operation timing conditions and pre-operation conditions that are required to perform the operation. The operation completion conditions that define the completion of the operation are determined and each operation logic table is stored in advance in a computer, and the corresponding operation logic table is generated in response to changes in plant status signals from various parts of Zorant that are input into the computer. When the operation timing condition and pre-operation condition established in the table are satisfied, an operation command is issued to Ginorant, and the execution of the operation item is determined to be completed when the operation completion condition is satisfied. Perform each operation item,
When processing of all operation items for one stage is completed,
In the method of displaying the progress status of the automatic operation operation by C1) on the computer which moves to the processing of the operation items of the next stage under the operator's confirmation, the operation items in the steno are changed according to the plant status at that time. An operation progress management table for selecting and specifying is stored in the computer, and when the operator selects one of the stages through the - key, the operation progress management table is used to select and specify the operation progress management table. The operation is performed by selecting an operation item according to the plant status, extracting the corresponding logic table based on the selected operation item, and determining whether each condition specified in the table is satisfied or not. A process of determining the progress state of the item is performed for all of the selected operation items, and the progress state of each of the selected operation items is identified according to the current Zorant state of the selected one stage. 1. A method for displaying the progress state of an automatic plant operation by a total machine, characterized in that characters are displayed on a display device in accordance with the state to be obtained.