JPH0511244B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention aims to improve the operational reliability and availability of large-scale plants such as nuclear power plants by reporting abnormal events in plants online and in real time. The present invention relates to a plant diagnosis device that can identify the plant and provide appropriate answers to questions from operators regarding the results.

[Prior art]

A conventional device of this type is shown in FIG. In the figure, 1 is plant data input from the actual plant, 2 is a plant abnormality diagnosis unit that diagnoses abnormalities in plant data 1, 3 is an abnormality diagnosis result file, and 4 is a message that is displayed to the operator after diagnosing the plant abnormality. 5 is an input processing unit that interprets the contents of the operator's question; 6 is an answer to the question interpreted by the input processing unit 5 using the diagnosis results of the plant abnormality diagnosis unit 2 and the knowledge database 11; 7 is a file used for consultant results and consulting; 8 is a message processor for displaying answers to operators; 9 is a plant abnormality diagnosis section 2 in which plant data 1 is abnormal. 10 is a diagnostic message file; 11 is a knowledge database for executing a consultant response to the operator's question from the input processing unit 5 in the consultant unit 6; 12 is a consultant message file; Reference numerals 13 and 14 are cathode ray tube display units on which the results from the message processor 4 for diagnosis and the message processor 8 for consultants are displayed, respectively, and 15 is an input unit for inputting questions to the system regarding the diagnosis results from the operator. .

Next, the operation will be explained. Necessary information is input from the plant data 1 from the actual plant, and the plant abnormality diagnosis section 2 uses the knowledge database 9 to identify the cause of the abnormality, determine operation guides, predict the next event, etc., and perform abnormality diagnosis. Store in result file 3. The message processor 4 inputs information from the abnormality diagnosis result file 3, and uses the diagnosis message file 10 to display a message to the operator on the cathode ray tube display section 13. On the other hand, when an operator asks a question through the question input section 15, the input processing section 5 interprets the question, and the consultant section 6 inputs the question into the question input section 15 in the abnormality diagnosis result file 3. The results at the time are input into the file 7, the file and the knowledge database 11 are used to search for answers to the questions, and the results are stored in the file 7. The message processor 8 uses the consultant results in the file 7 and the consultant message file 12 to display answers to the operator's questions on the cathode ray tube display section 14.

Since the conventional plant diagnosis apparatus is configured as described above, the consultant is executed using the diagnosis result file only at the time when the question from the operator is input. Therefore, the message is temporally fragmented, and there are drawbacks such as the inability to provide information such as how important process quantities and the like change over time after a question is input.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and when a question from an operator is input, trend editing is started regarding the amount of process required to answer the question. At the same time, changes over time in the process amount after the question input point are displayed on the CRT display at the same time as the consultant results, and if requested by the operator, the trend results can be displayed in detail on a separate CRT display. The purpose of this invention is to provide a plant diagnosis device that can display information.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, the same parts as in FIG. 1 are designated by the same reference numerals. In FIG. 17 is a trend data process amount determining section (plant data selecting section) that selects plant data 1 that is considered important; 17 is a trend data collecting section that collects the plant data 1 selected from the trend data process amount determining section 16; 18; is the plant data 1 collected by the trend data collection unit 17
19 is a trend data processing unit for trend-editing the plant data 1 collected by the trend data collection unit 17; 8 is a trend data file for storing the answers searched by the consultant unit 6 and trend-edited by the trend data processing unit 19; This is a message processor in which plant data 1 is displayed on cathode ray tube display sections (display sections) 14 and 20.

Next, the operation of this invention will be explained. Necessary information is input from the plant data 1 from the actual plant, and the plant abnormality diagnosis section 2 uses the knowledge database 9 to identify the cause of the abnormality, and also determines the operation guide, prediction of the next event, etc. It is stored in the abnormality diagnosis result file 3. The message processor 4 stores the abnormality diagnosis result file 3.
Enter the information from the diagnostic message file 10.
A message is displayed on the cathode ray tube display section 13 using. On the other hand, when an operator asks a question through the question input section 15, the input processing section 5 interprets the content of the question, and the consultant section 6 saves the result at the time the question was input from the abnormality diagnosis result file 3. 7, search for answers to the questions using that file and the knowledge database 11,
The results are stored in file 7. The trend data process amount determining unit 16 is the consultant unit 6.
Among the plant process quantities (plant data related to diagnosis results) used in the search for answers, plant process quantities that are considered important when providing consulting results to operators are determined. The trend data collection section 17 sequentially collects data from the plant data 1 regarding the plant process amount determined by the trend data process amount determination section 16 and stores it in the trend data file 18 . The trend data processing unit 19 processes the rate of change of the plant process amount, whether it is on an upward trend, whether it is on a downward trend, etc., based on the data stored in the trend data file 18. The message processor 8 displays the answer to the question on the cathode ray tube display section 14 using the consultant result in the file 7 at the time when the consultant is requested, the consultant message file 12, and the result after the consultant request by the trend data processing section 19. . Further, the results of the trend data processing section 19 are updated at regular intervals and displayed on the cathode ray tube display section 14. Furthermore, if a detailed trend is requested by an operator, the contents of the trend data file 18 can be displayed on the cathode ray tube display section 20.

〔Effect of the invention〕

As described above, according to the present invention, among the diagnosis results of the plant abnormality diagnosis section, plant data considered to be important is selected from among the plant data related to the diagnosis results used by the consultant section to search for answers. The system is configured to collect the plant data and display it as a trend, so operators can quantitatively understand the desired plant data among the many types of plant data at a glance, reducing the burden of monitoring on operators. It has the effect of reducing

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional plant diagnosis device, and FIG. 2 is a block diagram showing an embodiment of the plant diagnosis device according to the present invention. In the figure, 1...plant data, 2...plant abnormality diagnosis section, 3...abnormality diagnosis result file, 4...message processor for diagnosis,
5...Question input processing section, 6...Consultant department, 7...File for consultants, 8
...Message processor for consultants, 9...Knowledge database for diagnosis, 10
...Message file for diagnosis, 11...
Knowledge database for consultants, 12
...Message file for consultants, 13, 14, 20...CRT display, 1
5...Question input section from the operator, 16...Trend data process amount determination section, 17...Trend data collection section, 18...Trend data file,
19...Trend data processing section. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. A plant abnormality diagnosis section that diagnoses abnormalities in plant data, an input processing section that interprets the contents of the operator's questions, and the information interpreted by the input processing section using the diagnosis results and knowledge database of the plant abnormality diagnosis section Among the diagnosis results of the consultant department, which searches for answers to questions, and the plant abnormality diagnosis department, the plant data considered to be important among the plant data related to the diagnosis results used by the consultant department to search for answers. a trend data collection section that collects the plant data selected by the plant data selection section; a trend data processing section that edits the plant data collected by the trend data collection section; A plant diagnosis device comprising a message processor that causes a display unit to display answers searched by a consultant unit and plant data trend-edited by the trend data processing unit.