Support device, display device, support method, and support program

Abstract

An assistance device (10) for assisting the operation of a plant (1), said assistance device (10) being provided with: a question output unit (18) which outputs a question based on process data of the plant (1); an answer reception unit (20) which receives an answer to the question output from the question output unit (18); and an estimation information output unit (22) which outputs estimation information for assisting the operation of the plant (1), on the basis of the answer received by the answer reception unit (20).

Description

[Technical Field]

[0001] The present invention relates to an assistance device, a display device, an assistance method, and an assistance program for assisting plant operation. [Background technology]

[0002] When a highly difficult problem occurs, a plant operator may request a plant manufacturer with specialized technology to investigate the cause of the problem. The requested plant manufacturer receives the process data along with the details of the problem from the plant operator, and by checking and judging the data from multiple perspectives based on their process evaluation know-how, they eliminate possible causes of the problem, identify the true cause, and notify the plant operator of the suspected cause.

[0003] As a means for identifying the cause of a problem, it is known to identify the probable cause of the problem by having the user answer questions in an interactive format, as disclosed in Patent Documents 1 to 3, for example. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-173784 [Patent Document 2] Japanese Patent Application Publication No. 4-317132 [Patent Document 3] Japanese Patent Application Laid-Open No. 2005-148867 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the past, a plant manufacturer with specialized technology would receive the details of the problem and the process data from the business operator, analyze them, and finally identify the probable cause. This meant that it took a long time to identify the cause of the problem and to recover from it, which could result in a decrease in production efficiency.

[0006] An exemplary object of an embodiment of the present invention is to provide an assistance device, a display device, an assistance method, and an assistance program that can estimate information related to changes in the operating status of a plant while suppressing a decrease in production efficiency. [Means for solving the problem]

[0007] In order to solve the above problems, one aspect of the support device of the present invention is a support device for supporting plant operation, and includes a question output unit that outputs questions based on process data of the plant, an answer receiving unit that receives answers to the questions output from the question output unit, and an estimated information output unit that outputs information to support plant operation based on the answers received by the answer receiving unit.

[0008] According to the above aspect, questions based on process data of a plant are output, and estimated information for supporting plant operation is output based on answers received to the output questions, so that a user can visually and intuitively understand the content of the questions that take into account the actual operating status of the plant. Therefore, information related to changes in the operating status of the plant can be estimated while suppressing a decrease in production efficiency.

[0009] Another aspect of the support device of the present invention is a support device for supporting the operation of a plant, and includes a question output unit that outputs questions regarding the operating status of the plant, a response receiving unit that receives responses to the questions output from the question output unit, an estimated information output unit that outputs estimated information that supports the operation of the plant based on the responses received by the response receiving unit, and a user evaluation receiving unit that receives user evaluations regarding the estimated information output from the estimated information output unit.

[0010] According to the above aspect, a question regarding the operational status of a plant is output, estimated information for supporting the operation of the plant is output based on the answer received to the output question, and a user evaluation is received regarding the estimated information. Therefore, for example, the user can answer and evaluate the question himself, thereby suppressing a decrease in production efficiency. Therefore, it is possible to estimate information regarding changes in the operational status of the plant while suppressing a decrease in production efficiency.

[0011] Another aspect of the present invention is a display device for supporting the operation of a plant, the display device being configured to display a question related to the operating status of the plant, the question including information based on process data of the plant for supporting an answer to the question.

[0012] Yet another aspect of the present invention is a support method for supporting plant operation, the support method including: outputting a question based on process data of the plant by a question output unit; receiving an answer to the question output by the question output unit by an answer receiving unit; and outputting estimated information for supporting the plant operation by an information output unit based on the answer received by the answer receiving unit.

[0013] Another aspect of the support method of the present invention is a support method for supporting the operation of a plant, and includes outputting a question regarding the operating status of the plant by a question output unit; receiving an answer to the question output from the question output unit by an answer receiving unit; outputting estimated information for supporting the operation of the plant by an estimated information output unit based on the answer received by the answer receiving unit; and receiving a user evaluation regarding the estimated information output from the estimated information output unit by a user evaluation receiving unit.

[0014] Yet another aspect of the present invention is an assistance program executed by a computer to assist in plant operation, the program causing the computer to execute the following operations: outputting a question based on process data of the plant using a question output unit; receiving an answer to the question output from the question output unit using an answer receiving unit; and outputting estimated information for assisting the plant operation using an estimated information output unit based on the answer received by the answer receiving unit.

[0015] Another aspect of the assistance program of the present invention is an assistance program executed by a computer to assist in the operation of a plant, and causes the computer to output questions regarding the operating status of the plant using a question output unit; receive answers to the questions output from the question output unit using an answer receiving unit; output estimated information that assists the operation of the plant based on the answers received by the answer receiving unit using an estimated information output unit; and receive user evaluations regarding the estimated information output from the estimated information output unit using a user evaluation receiving unit.

[0016] In addition, any combination of the above components or mutual substitution of the components or expressions of the present invention between methods, devices, systems, computer programs, data structures, recording media, etc. are also valid aspects of the present invention. [Effects of the Invention]

[0017] According to the present invention, it is possible to estimate information relating to changes in the operating status of a plant while suppressing a decrease in production efficiency. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a diagram showing a configuration of a support device 10 according to an embodiment of the present invention. [Figure 2] 1 is a diagram illustrating an example of a hardware configuration of a support device 10. FIG. [Figure 3]1 is a flowchart showing an example of a support method by the support device 10. [Figure 4] 1 is a flowchart showing an example of a support method by the support device 10. [Figure 5] 1 is a diagram for explaining a support method using the support device 10. FIG. [Figure 6] 1 is a diagram for explaining a support method using the support device 10. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be described below through embodiments of the invention with reference to the drawings, but the following embodiments do not limit the invention according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. The same or equivalent components, parts, and processes shown in each drawing will be given the same reference numerals, and redundant explanations will be omitted as appropriate.

[0020] Figures 1 to 6 are diagrams for explaining a support device and a support method according to an embodiment of the present invention. Specifically, Figure 1 is a diagram showing the configuration of a support device 10 according to an embodiment of the present invention, and Figure 2 is a diagram showing an example of the hardware configuration of the support device 10. Also, Figures 3 and 4 are flowcharts showing an example of a support method using the support device 10, and Figures 5 and 6 are diagrams for explaining an example of the support method.

[0021] The support device 10 is a device that supports the operation of the plant 1. Examples of the plant 1 include a power plant, an incineration plant, and a chemical plant. The plant 1 uses any process data. The process data is data on process values such as temperature, pressure, air volume, concentration, or components. Specifically, the process values of the process data can include measured values detected by sensors (not shown) installed in the plant 1 and manipulated variables based on the difference between the set values and the measured values for the points detected by the sensors. The process data obtained from the plant 1 is multidimensional data with hundreds of types.

[0022] The support device 10 is connected to a plurality of sensors (not shown) installed in the plant and a control device (not shown) that controls the plant, and acquires process data acquired from the sensors and the control device. When there is a change in the acquired process data, the support device 10 can estimate information related to the change in the process data.

[0023] The assistance device 10 is pre-installed with a predetermined program required to execute the assistance method according to this embodiment, and an example of its hardware configuration is shown in Fig. 2. Specifically, the assistance device 10 can be a general-purpose or dedicated computer equipped with a CPU 101, ROM 102, RAM 103, external storage device 104, user interface 105, display 106, printer 107, and communication interface 108. The CPU 101 performs calculations based on information input by the worker via the user interface 105 and outputs the calculation results to the display 106 and printer 107, allowing the worker to input necessary information to the assistance device 10 via the user interface 105 while viewing the output.

[0024] The assistance device 10 may be configured as a single computer or as a plurality of computers distributed over a network. The assistance device 10 can function as various functional blocks or steps described below by, for example, a CPU executing a predetermined program (a program defining the assistance method according to this embodiment) stored in the above-mentioned ROM, RAM, external storage device, etc. or downloaded via a communication network.

[0025] The various functional blocks of the assistance device 10 will be described below.

[0026] The support device 10 of this embodiment includes a process data acquisition unit 12, a change detection unit 14, a ticket issuance unit 15, a question generation unit 16, a question output unit 18, an answer acceptance unit 20, an estimated information output unit 22, a user evaluation acceptance unit 24, a ticket storage unit 26, a flowchart setting unit 28, and a flowchart learning unit 30.

[0027] The process data acquiring unit 12 acquires process data of the plant. The process data is used to operate the plant and can also be called operation data. The process data is, for example, data that indicates changes in process values over time. In this case, the process data may be continuous changes in process values at predetermined time intervals. The process data is multidimensional data. The process data acquired by the process data acquiring unit 21 is stored in the support device 10 together with time information of the plant.

[0028] The change detection unit 14 monitors the process data acquired by the process data acquisition unit 12 and detects changes in the process data. For example, the change detection unit 14 may monitor the process data and notify the user if the trend of the process data has changed compared to the previous state, and the user may then determine whether or not the process data has changed. Alternatively, the change detection unit 14 may determine that a change has occurred in the process data without notifying the user if the trend of the process data has changed compared to the previous state.

[0029] The ticket issuing unit 15 issues a ticket based on the detection of a change in process data by the change detection unit 14. A ticket is used to manage one incident, that is, the detection of a change in process data. A ticket is issued each time a change in process data is detected. The ticket issued by the ticket issuing unit 15 is associated with the process data for a certain period including the time when the ticket was issued (or the time when the change in process data occurred) and is stored in the ticket storage unit 26. By issuing and managing such tickets, various multiple incidents that occur in the plant 1 can be easily and accurately managed.

[0030] When the change detection unit 14 detects a change in the process data, the question generation unit 16 generates a question about the operating status of the plant based on the judgment flowchart in order to estimate the cause and a countermeasure. Details of question generation based on the judgment flowchart will be described later. The question generation unit 16 may generate a question based on the detection of a change from the change detection unit 14, or may generate a question based on the issuance of a ticket from the ticket issuance unit 15. Furthermore, the question generation unit 16 may generate a question including information based on the process data associated with the ticket stored in the ticket storage unit 26.

[0031] When the change detection unit 14 detects that there has been a change in the process data, the question output unit 18 outputs the question generated by the question generation unit 16. In this way, a question for identifying the cause of the change in the process data and how to deal with it is presented to the user. The question output unit 18 may be a display device that displays the question.

[0032] The answer receiving unit 20 receives answers to the questions output by the question output unit 18. Specifically, the answer receiving unit 20 receives answers from the user to the questions presented to the user by the question output unit 18. For example, the question output unit 18 may be configured to output several answer options corresponding to the questions, and the answer receiving unit 20 may receive answers from the user in a selection format. In this way, the series of steps from question generation to answer reception are repeated a required number of times, and the cause of the change in process data and how to deal with it are estimated.

[0033] The estimated information output unit 22 outputs estimated information indicating the estimated cause of the change in the process data and a countermeasure, etc. This estimated information may be generated by the question generation unit 16. In this way, estimated information that supports the operation of the plant related to the change in the process data is presented to the user.

[0034] The user evaluation receiving unit 24 receives user evaluations regarding the estimated information output from the estimated information output unit 22. Specifically, after a ticket is issued from the ticket issuing unit 15, the user evaluation receiving unit 24 receives user evaluations regarding the estimated information related to a change in process data associated with the ticket. For example, several options may be output, and the user evaluation receiving unit 24 may be configured to receive evaluations from users in a selection format. The user evaluation is performed after a countermeasure is taken to resolve the cause of the change in process data. The user evaluation received by the user evaluation receiving unit 24 is stored in the ticket storage unit 26 in association with the ticket related to the user evaluation.

[0035] The ticket storage unit 26 stores one or more tickets issued by the ticket issuing unit 15 and process data associated with each ticket. When the user evaluation receiving unit 24 completes user evaluations, the user evaluations associated with each ticket are also stored in the ticket storage unit 26. The ticket storage unit 26 may store, for each ticket, a ticket ID, a score, a probable cause, a countermeasure, a user evaluation, and the like, in association with each other. The ticket ID may be a number or information on the date and time the ticket was issued.

[0036] Next, details of question generation by the question generator 16 will be described. The question generator 16 generates questions based on the judgment flowchart 32. Here, the judgment flowchart 32 is composed of one or more multiple-choice questions corresponding to the symptoms of the change in the process data detected by the change detector 14. For example, if the judgment flowchart 32 is composed of multiple multiple-choice questions, each question will be generated by the question generator 16 in the order of the flowchart and output from the question output unit 18. Note that the judgment flowchart 32 can be, for example, an existing troubleshooting flowchart known to plant designers, and the specific contents thereof will be omitted in this embodiment.

[0037] The flowchart setting unit 28 sets a judgment flowchart 32. At the beginning of the support device 10, for example, an expert such as a plant manufacturer engineer can combine question element groups 27, allowing the flowchart setting unit 28 to set the initial judgment flowchart 32.

[0038] The flowchart learning unit 30 updates the judgment flowchart 32 based on the information stored in the ticket storage unit 26. Specifically, the flowchart learning unit 30 updates the judgment flowchart 32 based on the process data and user evaluation associated with each ticket. For example, if the user evaluation of the estimated information output from the estimated information output unit 22 is “Bad,” indicating a poor evaluation, the flowchart learning unit 30 updates the judgment flowchart 32 by modifying, adding, or deleting at least one question in the judgment flowchart 32 related to the estimated information. For example, the user evaluation receiving unit 24 may receive from the user a correct answer or alternative candidate regarding the reason for the “Bad” evaluation, the estimated cause, or a countermeasure, and the flowchart learning unit 30 updates the judgment flowchart 32 based on this information. On the other hand, if the user evaluation of the estimated information output from the estimated information output unit 22 is “Good,” indicating a good evaluation, the flowchart learning unit 30 continues the content of the judgment flowchart 32 related to the estimated information. By updating or evaluating the judgment flowchart 32 in this way, the accuracy of the estimated information output from the estimated information output unit 22 can be improved. The accuracy of this estimated information is calculated as a score, and the score is stored in the ticket storage unit 26 in association with the associated ticket.

[0039] The specific operations of the various functional blocks of the support device 10 will be described in more detail in the support method described later.

[0040] An example of the operation of the assistance device 10 will be described below with reference to FIGS. 3 to 6 as an assistance method according to one embodiment of the present invention. FIG. 3 shows an example of the entire assistance method according to this embodiment. FIG. 4 shows an example of the assistance method from ticket issuance to ticket discarding. FIG. 5 shows an example of a display mode for a question output by the question output unit 18, and FIG. 6 shows an example of a display mode for a user evaluation received by the user evaluation receiving unit 24.

[0041] 3, first, the process data of the plant 1 is acquired by the process data acquiring unit 12 (S10). The process data acquired by the process data acquiring unit 12 is stored in the support device 10. The process data acquiring unit 12 may acquire the process data by accepting an input from a user via the user interface 105.

[0042] Next, the change detection unit 14 detects a change in the process data acquired from the process data acquisition unit 12 (S11). The change detection unit 14 may determine that a change in the process data has occurred, for example, when it detects a change equal to or greater than a predetermined threshold. Alternatively, the change detection unit 14 may determine that a change in the process data has occurred based on an input from a user. Note that while FIG. 3 shows an example in which a change in the process data is detected after the process data is acquired, the process data acquisition unit 12 may acquire the process data only after it determines that a change in the process data has occurred. When the change detection unit 14 detects that a change in the process data has occurred, the user is notified of this.

[0043] Next, when the change detection unit 14 detects a change in the process data, the question generation unit 16 generates a question about the operating status of the plant in order to estimate the cause of the change and how to deal with it (S12). Here, in the initial question generation, for example, the user may input what symptom the change in the process data is caused by, and a judgment flowchart 32 corresponding to the symptom may be read out, and the question generation unit 16 may sequentially generate multiple questions in the judgment flowchart 32 in the order of the read out flowcharts. Note that when the change detection unit 14 detects a change in the process data, the ticket issuing unit 15 issues a ticket (see FIG. 4). The subsequent flow of the issued ticket will be described separately.

[0044] After step S12, the question generated by question generation unit 16 is output from question output unit 18 (S13), and an answer to the question from the user is received by answer receiving unit 20 (S14).

[0045] FIG. 5 shows an example of a display screen 40 for a question output from the question output unit 18. The display screen 40 is displayed on the display 106. In the example of FIG. 5, the display screen 40 includes a question display area 42 that displays the content of the question, an answer support display area 44 that supports the user's response to the question, and a selection item display area 46 that prompts the user to respond. In this example, the question display area 42 displays "Question: Is the current furnace temperature significantly different from the reference temperature?" The answer support display area 44 displays information based on the process data to support the response to the question, and the selection item display area 46 displays answer options "Yes," "No," and "I don't know." The answer support display area 44 displays a two-dimensional coordinate graph 44a of actual data, with the vertical axis representing furnace temperature [°C] and the horizontal axis representing boiler load [%], on the left side of the screen, and a reference schematic diagram 44b of the actual data graph on the right side of the screen. The reference diagram 44b is a schematic representation intended to inform the user of the focus points for determining the answer to the question. In this way, the question output from the question output unit 18 includes information based on process data, such as the actual data graph 44a and its reference diagram 44b. This allows the user to visually and intuitively grasp this information while answering the question, thereby improving the ease with which the user can answer. Therefore, even an inexperienced operator without sufficient knowledge can easily and accurately answer the question. In addition, because this information is based on the actual operating status of the plant, the cause of the problem can be identified more accurately than, for example, a situation in which the user simply identifies the probable cause of the problem interactively.

[0046] 3, after the answer receiving unit 20 receives an answer, it is determined whether or not the cause of the detected change and a countermeasure have been estimated (S15). If the estimated cause and countermeasure have not been determined in step S15 (S15 NO), the process returns to question generation in S12, and S12 to S14 are repeated. On the other hand, if the estimated cause and countermeasure have been determined in step S15 (S15 YES), the estimated information output unit 22 outputs estimated information related to the change in the process data (S16).

[0047] Thereafter, the user evaluation is received by the user evaluation receiving unit 24 (S17), and when a user evaluation is received, the user evaluation is stored in the ticket storage unit 26 (S18).

[0048] FIG. 6 illustrates an example of a display screen 50 for user ratings received by the user rating receiving unit 24. The display screen 50 is displayed on the display 106. In the example of FIG. 6, the display screen 50 includes display areas for a ticket ID 52, a score 54, a probable cause 56, a solution 58, and a user rating 60. The ticket ID identifies the ticket and, for example, is numbered in order of the oldest ticket. In FIG. 6, discarded ticket IDs have been deleted, and the remaining tickets are displayed in order of the oldest ticket from the bottom up. The score 54 indicates the accuracy of the estimated information, including the probable cause 56 and the solution 58. For example, a higher score indicates higher accuracy of the estimated information. The user rating 60 is a display area for entering a user rating for the estimated information. As shown in FIG. 6, for example, "Good" indicates a good user rating, and "Bad" indicates a bad user rating. The user can select either rating. The user visually checks the display screen 50 and inputs a user rating for each ticket in the display area for the user rating 60. The ticket with the user rating 60 entered is discarded from the ticket storage unit 26 and deleted from the display screen 50. The user rating 60 is not limited to two options, "Good" or "Bad," and may be rated on three or more levels, or may be rated for each of the probable cause 56 and the countermeasure 58. In addition to the display of FIG. 6, for example, if the rating is "Bad," items for accepting the reason and the correct answer for the probable cause or the countermeasure may be displayed. The display mode of such items is not limited, and the user may input the content, or the user may select from several options.

[0049] Next, with reference to FIG. 4, a processing flow after the ticket issuing unit 15 issues a ticket will be described. When the ticket issuing unit 15 issues a ticket (S20), a ticket ID is assigned, and the ticket ID and process data are associated and stored in the ticket storage unit 26 (S21). After the estimated information output unit 22 outputs estimated information and a countermeasure based on the estimated information is executed, the ticket issuing unit 15 notifies the user via the user evaluation receiving unit 24 to prompt the user to evaluate whether the estimated information was appropriate. In this case, the ticket issuing unit 15 may notify the user via the user evaluation receiving unit 24 after a certain period of time has elapsed since the ticket issuance. When the user evaluation for the ticket has been completed (YES in S22), the process data associated with the ticket and the user evaluation are associated and stored in the ticket storage unit 26 (S23). Then, the flowchart learning unit 30 updates the determination flowchart 32 based on the information stored in the ticket storage unit 26. Furthermore, the ticket ID for which user evaluation has been completed is discarded from the ticket storage unit 26 together with the information associated with the ticket ID, and is deleted from the display screen 50 in Fig. 6. On the other hand, if user evaluation of the ticket has not been completed (S22 NO), the process returns to step S21.

[0050] In this way, by managing the process from the time a change in process data is detected to the time a countermeasure is evaluated by issuing and discarding tickets, it is possible to easily and accurately manage a variety of multiple incidents that occur in plant 1.

[0051] As described above, the support device according to this embodiment outputs questions based on plant process data and outputs estimated information for supporting plant operation based on the answers received to the output questions, allowing the user to visually and intuitively understand the content of the questions. Therefore, information related to changes in the plant's operating status can be estimated while suppressing a decrease in production efficiency. Furthermore, the support device receives user evaluations of the estimated information for supporting plant operation, thereby improving the accuracy of the estimated information.

[0052] The present invention is not limited to the above-described embodiment and can be modified in various ways. In the above-described embodiment, a configuration including the ticket issuing unit 15 and the ticket storage unit 26 has been described. However, both of these components may be omitted. In other words, user evaluations and flowchart updates may be performed without adopting the concept of tickets. Furthermore, the operation of the support device 10 is not limited to being entirely automated by computer processing, but may also include operations that involve at least a portion of manual work by an operator. Furthermore, the display modes shown in FIGS. 5 and 6 in the above-described embodiment are merely examples and are not intended to be limiting. The questions output from the question output unit 18 may be questions related to the plant's operating status, and are not limited to those based on process data related to the actual operating status.

[0053] The embodiments described through the above embodiments of the invention can be combined, modified, or improved as appropriate depending on the application, and the present invention is not limited to the above-described embodiments. It is clear from the claims that such combinations, modifications, or improvements are also included within the technical scope of the present invention. [Explanation of symbols]

[0054] 10... support device, 12... process data acquisition unit, 14... change detection unit, 16... question generation unit 18...question output unit, 20...answer receiving unit, 22...estimated information output unit 24...user evaluation reception unit, 26...ticket storage unit, 28...flowchart setting unit, 30...Flowchart learning section

Claims

1. A support device for supporting plant operation, a question output unit that outputs at least a question based on process data of a plant, an actual data graph of the process data, and a schematic diagram that schematically illustrates the actual data graph; an answer receiving unit that receives an answer to the question output from the question output unit; an estimated information output unit that outputs estimated information for supporting operation of the plant based on the answer received by the answer receiving unit; A support device comprising:

2. A support device for supporting plant operation, a question output unit that outputs at least a question regarding an operating status of the plant, an actual data graph of the operating status, and a schematic diagram that schematically shows the actual data graph; an answer receiving unit that receives an answer to the question output from the question output unit; an estimated information output unit that outputs estimated information for supporting operation of the plant based on the response received by the response receiving unit; a user evaluation receiving unit that receives a user evaluation regarding the estimated information output from the estimated information output unit; A support device comprising:

3. The support device according to claim 2 , further comprising a ticket issuing unit that issues a ticket based on the detection of a change in the process data of the plant.

4. 4. The support device according to claim 3, further comprising a ticket storage unit that stores the ticket issued by the ticket issuing unit and the process data when a change in the process data is detected, in association with each other.

5. The support device according to claim 4 , wherein the ticket storage unit stores the user evaluations received by the user evaluation receiving unit.

6. a flowchart learning unit that updates the judgment flowchart based on the information stored in the ticket storage unit; The assistance device according to claim 4 , wherein the question output unit outputs a question generated based on the determination flowchart.

7. The support device according to claim 1 , wherein the question output unit outputs the question based on detection of a change in process data of a plant.

8. A display device for supporting plant operation, The display device is configured to display at least a question regarding the operating status of the plant, an actual data graph of the operating status, and a schematic diagram that schematically shows the actual data graph, The display device wherein the question includes information based on plant process data to assist in answering the question.

9. The question is displayed based on a detected change in the plant process data; The display device of claim 8 , wherein the information is based on the process data when a change in the process data is detected.

10. 1. A computer-implemented method for assisting plant operation, comprising: outputting at least a question based on process data of the plant, an actual data graph of the process data, and a schematic diagram that schematically illustrates the actual data graph by a question output unit of the computer; receiving an answer to the question output by the question output unit by an answer receiving unit of the computer; and and outputting, by an estimated information output unit of the computer, estimated information for supporting the operation of the plant based on the answer received by the answer receiving unit. and how to help.

11. 1. A computer-implemented method for assisting plant operation, comprising: outputting at least a question regarding the operating status of the plant, an actual data graph of the operating status, and a schematic diagram that schematically shows the actual data graph by a question output unit of the computer; receiving an answer to the question output by the question output unit by an answer receiving unit of the computer; outputting, by an estimated information output unit of the computer, estimated information for supporting operation of the plant based on the answer received by the answer receiving unit; and a user evaluation receiving unit of the computer receiving a user evaluation regarding the estimated information output from the estimated information output unit; and how to help.

12. A support program executed by a computer to support plant operation, The computer, outputting at least a question based on process data of the plant, an actual data graph of the process data, and a schematic diagram that schematically shows the actual data graph by a question output unit; receiving an answer to the question output by the question output unit by an answer receiving unit; and an estimated information output unit outputs estimated information for supporting operation of the plant based on the answer received by the answer receiving unit; A support program to help implement this.

13. A support program executed by a computer to support plant operation, The computer, outputting at least a question regarding the operating status of the plant, an actual data graph of the operating status, and a schematic diagram that schematically shows the actual data graph by a question output unit; receiving an answer to the question output by the question output unit by an answer receiving unit; outputting, by an estimated information output unit, estimated information for supporting operation of the plant based on the answer received by the answer receiving unit; and a user evaluation receiving unit receiving a user evaluation regarding the estimated information output from the estimated information output unit; A support program to help implement this.

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