JPH03167631A - Data generating/editing system for expert system - Google Patents

Abstract

PURPOSE:To facilitate the generation and editing of both the display system facility data and the knowledge data by generating and editing the necessary display data and its related knowledge from the plotting data on a system chart. CONSTITUTION:The symbols and pattern graphics are selected out of files 9 and 10 and arranged and plotted on a display screen for generation of a knowledge base. Then the data are defined based on the definition of the classes corresponding to the arranged symbols and patterns. Thus an instance of the knowledge base is produced. The knowledge data are written into a frame of the knowledge base 1 and the plotting data are transferred to a system facility data base 5. For the data stored in the base 5, the necessary display data are given to a display processing part 13 in an executing environment and converted into the graphic data via the symbol file 9, etc. These graphic data are displayed on a CRT display device 4A. Thus the display system facility data and the knowledge can be easily generated and edited.

Description

[Detailed Description of the Invention] A. INDUSTRIAL APPLICATION FIELD The present invention relates to an expert system for supporting the operation and operation of a plant, and particularly to an interactive data generation/editing method.

B. Summary of the Invention The present invention, in an expert system that uses a system diagram as a display screen, generates and edits display data and related knowledge necessary for display from the data by drawing a system diagram, thereby displaying system equipment data for display. This facilitates the creation and editing of knowledge data.

C. Conventional technical expert systems are broadly divided into an execution environment that performs inference using a constructed knowledge base, and an editing environment that creates and edits the knowledge base.

Expert systems, which are primarily used to support plant operation and operation, manually input data about the target plant online in their execution environment, and execute various support functions based on that data. For example, when applied to electric power systems and sewage treatment facilities, it is possible to support power receiving/substation equipment switching and determine whether pump operation is possible or not as inference results. These execution status and execution results are as follows.
It is displayed on various display screens along with various information obtained from the target plant, and command input from the user's operator is also accepted using the keyboard and mouse.

The second shows a configuration diagram of an expert system to support plant operation and operation. A knowledge base 1 stores production control rules and frame data for system equipment and equipment, and a knowledge base editor 2, a keyboard 3, and a CRT display device 4 are used to create and edit this knowledge. The system equipment database 5 stores system diagram data of the target plant. Here, the system diagram corresponds to a drawing that expresses the facilities and equipment of the target plant using graphic data called symbols, and expresses the functions of the plant by arranging and connecting these. This system system diagram data is stored in the drawing editor 6, keyboard 3, and CRT display device 4.
It is created and saved in the database 5 using . In addition, each graphical data in the system diagram also includes data on the status of system equipment (on/off status and operating status) given through online communication, and is edited according to changes in the status of system equipment.
It is displayed on the CRT display device 4.

The inference unit 7 uses the knowledge base 1 and the system diagram data in the system equipment database 5 to infer power receiving/transforming equipment switching support, inferences as to whether or not bomb operation is possible, etc. using the pile method.

D. Problems to be Solved by the Invention Conventional expert systems use a knowledge base editor 2 to generate and edit knowledge in the knowledge base 1 in an interactive manner, and create or edit system configuration diagram data in the system equipment database 5 by drawing. This is done interactively using the editor 6.

In this conventional system, when changing or adding equipment to a target plant or changing the knowledge expression method, it is troublesome to edit data in the knowledge base 1 and data in the system equipment database 5, respectively.

This problem still remains unsolved even though the knowledge base editor 2 is configured to have the drawing function of the drawing editor 6.

An object of the present invention is to provide a data generation/editing method that facilitates data generation/editing of display system equipment data and knowledge base.

E. Means for Solving the Problems In order to achieve the above object, the present invention provides an expert system for supporting plant operation and operation using a system diagram as a display screen, in which symbols and pattern data of the system diagram are saved. A basic data file for drawing, a knowledge base that stores knowledge of frame configurations, and a knowledge base that stores knowledge of frame configurations, and the basic data file and drawing data are used to draw and change the system system diagram in an interactive format, and the above information necessary for inference from the corresponding drawing data is provided. Equipped with a knowledge base editor with a drawing function that generates and updates system equipment data necessary for knowledge base instances and display, and a system equipment database that stores the system equipment data, it is possible to create a system system diagram from drawing data of a system system diagram. Generate and edit the system equipment data necessary for knowledge generation or editing and display of the related knowledge base, and generate and edit the related display data and knowledge base data by generating and editing the system system diagram using the drawing function.

F. Embodiment FIG. 1 is a system configuration diagram showing an embodiment of the present invention. The knowledge base editor 8 has an editing function for acquiring frame data to the knowledge base 1 as well as a drawing function for acquiring system equipment data. symbol file 9
The pattern file 1o stores graphic data that is the basis of drawing, and the pattern file 1o stores graphic data that is a combination of symbols. The figure/knowledge related file 11 stores data that defines the relationship between symbols and patterns and data in the knowledge base l. The drawing data file 12 stores drawing data generated by the knowledge base editor 1.

The execution display processing unit 13 creates graphic data while referring to the symbols in the symbol file 9 and the like according to the data in the database 5, and displays the current system system diagram on the CRT display device 4A. It also exchanges system status data related to the current display and inference result data with the inference unit 7.

In this configuration, the knowledge base editor 8 creates a knowledge base (instance frame) in an interactive manner using the Numbol file 9, the pattern file IO, the figure/knowledge related file 11, and the class definition file of the frame in the knowledge base 1. Generates. To generate a knowledge base by drawing, first, symbols and pattern figures are selected from the files 9 and 10, and drawing is performed by arranging and connecting them on the display screen. Next, define data for the arranged symbols and patterns.

This data is based on the definition of the class corresponding to the pattern. This creates an instance of the knowledge base. Through these operations, the knowledge base editor becomes in a state where drawing data, knowledge data, and their related information are held. Then, the knowledge data is written into a frame within the knowledge base l, and the drawing data is transferred to the system equipment database 5.

In the execution environment, the data in the database 5 is provided with necessary display data to the display processing section 13, converted into graphic data using the symbol file 9, etc., and displayed as an image on the CRT display device 4A. Further, the knowledge in the knowledge base 1 is referred to in the inference section 7 together with the rules of one rule file separately created, and the inference results are displayed on the CRT display device 4A through the display processing section 13. Further, in the execution environment, the display is updated on the database 5 using online data, and the display is updated on the CRT display device 4A.

Therefore, by performing an interactive drawing operation, the knowledge of the knowledge base, the display data of the system equipment database, and their related information are generated all at once. Eliminates data generation and editing. In addition, since the knowledge base data and display data are handled as source data by the editor, they are easier to understand than compiled languages handled by the inference section and display processing section, and drawing operations are more reliable. make it easier.

G. Effects of the Invention As described above, according to the present invention, by drawing a system system diagram using the drawing function, display data related to display is generated and edited from drawing data, and knowledge of the related knowledge base is generated. This has the effect of facilitating data generation and editing of system equipment data for display and knowledge base.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram showing one embodiment of the present invention;
The figure is a conventional system configuration diagram. 1... Knowledge base, IA... Rule file, 3.
Keyboard, 4.4A...CRT display device, 5...
System equipment database, 7... Inference section, 8... Knowledge editor, 9... Symbol file, 10...
- Pattern file, 11... Figure/knowledge related file, 12... Drawing data file, 13... Execution display processing unit. 1...Knowledge base IA...Rule file 3...Keyboard 7...Inference section 8...Knowledge base editor 9...Symbol/L file lO...Pattern file 11...Leaning shape knowledge WI series file 12...Drawing data file 13...Execution display processing unit Fig. 2 Conventional system configuration N

Claims (1)

[Claims] (1) In an expert system for supporting the operation and operation of a plant using a system diagram as a display screen, a basic data file for drawing that stores the symbols and pattern data of the system diagram and knowledge of the frame configuration are stored. Create and modify the system system diagram in an interactive manner using the knowledge base, the basic data file, and drawing data, and generate and modify instances of the knowledge base necessary for inference and system equipment data necessary for display from the corresponding drawing data. It is equipped with a knowledge base editor with a drawing function for updating, and a system equipment database that stores the system equipment data, and is necessary for generating, editing, and displaying knowledge of a knowledge base related to a system system diagram from drawing data of a system system diagram. A data generation and editing method for an expert system characterized by generating and editing data.