General characterization method for physical mechanism knowledge of complex industrial equipment

Abstract

The invention provides a general characterization method for complex industrial equipment physical mechanism knowledge, and the method specifically comprises the following steps: 1, abstracting an equipment system structure block diagram for characterizing an equipment physical mechanism according to an equipment physical structure, and characterizing fault domain knowledge by combining a diagrammodel; 2, abstracting a system structure topological graph based on the system structure block diagram, and defining a corresponding graph model, namely representing modules in the equipment system structure block diagram by nodes, representing connecting lines among the modules by edges among the nodes, and enabling the directions of the edges to be consistent with a relation transmission direction in the system structure block diagram, wherein the nodes and the edges jointly form an equipment diagram model based on the structure block diagram; 3, realizing layering of the graph model according to the hierarchical relationship among the system, the subsystems and the parts. The method can be used for supporting rapid construction of fault analysis application according to actual businessrequirements of the industry, and allows experience and knowledge of fault processing to be gradually accumulated and continuously improved in a unified fault knowledge system.

Description

technical field [0001] The present invention relates to a technology for monitoring and diagnosing the fault state of complex industrial equipment, in particular to a general characterization method for complex industrial equipment physical mechanism knowledge, which can be used to construct fault domain knowledge for complex industrial equipment based on the knowledge general characterization method library. Background technique [0002] The corresponding domain knowledge of complex industrial equipment plays an extremely important role in intelligent operation and maintenance. Among them, the domain knowledge related to the physical mechanism of equipment and the domain knowledge related to faults are important components. Because the construction method of domain knowledge based on physical mechanism analysis is too complicated, the knowledge of fault domain is characterized by high specialization, complex and diverse sources, and the lack of standard and unified represen...

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Problems solved by technology

Because the domain knowledge construction method based on physical mechanism analysis is too complicated, the fault domain knowledge is characterized by high specialization, complex and diverse sources, and the lack of a standard and unified representation method, which makes it difficult to uniformly represent it. my country has not yet formed a complex industrial equipment fault domain that is conducive to the development of the industry. Knowledge System

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