Fault diagnosis method based on three-dimensional virtual cognitive environment

Abstract

The present invention discloses a fault diagnosis method based on a three-dimensional virtual cognitive environment, which comprises: 1, constructing a three-dimensional virtual model of a process system; 2, carrying out layered linking on the three-dimensional virtual model to form hierarchies of parts, components, apparatus, subsystems and a system and establishing the three-dimensional virtual cognitive environment; 3, aiming at each part, component, apparatus, subsystem and system of the three-dimensional virtual model, respectively linking a model attribute library, wherein the model attribute library comprises an abnormal state determination relation, upper and lower threshold values and fault features; 4, carrying out fault diagnosis on the basis of the three-dimensional virtual cognitive environment; and 5, carrying out three-dimensional virtual enhanced cognition of a fault diagnosis result and completing fault diagnosis based on the three-dimensional virtual cognitive environment. The three-dimensional virtual cognitive environment provided by the present invention can provide a more virtual and flexible fault diagnosis mode for users.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of complex systems, in particular to a fault diagnosis method based on a three-dimensional virtual cognitive environment. Background technique [0002] Fault diagnosis methods mainly include two categories: qualitative fault diagnosis and quantitative fault diagnosis. Qualitative fault diagnosis methods include expert system methods, qualitative reasoning methods, graph theory methods, etc. Quantitative fault diagnosis methods include signal processing methods, mathematical model methods, neural network methods, and pattern recognition methods. These methods need to build a complete fault model or train identification patterns through a large amount of data, which is not convenient for intuitively reflecting abnormal state phenomena and logical relationships, and the structure of fault diagnosis systems is relatively complicated. [0003] With the development of 3D virtual reality techno...

AI Technical Summary

Problems solved by technology

However, the existing combination methods of the two mainly focus on transmitting data or scenes through the network and other means. Virtual reality technology is only used as a display interface to express the three-dimensional characteristics of the system to assist maintenance, and the process and results of fault diagnosis have not been deeply integrated with virtual reality technology. combine

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