Remote fault diagnosis system and method based on expert system

An expert system and fault diagnosis technology, applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve problems such as difficult fault diagnosis, complex influencing factors of hydraulic test bench structure, long maintenance cycle, etc. Simple and fast diagnosis

Active Publication Date: 2019-10-01
WUHAN INSTITUTE OF TECHNOLOGY
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the complex structure and various influencing factors of the hydraulic test bench, and the fault characteristics are tran

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Remote fault diagnosis system and method based on expert system
  • Remote fault diagnosis system and method based on expert system
  • Remote fault diagnosis system and method based on expert system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] The present invention will be further described below in conjunction with accompanying drawing.

[0048] see figure 1 , the remote fault diagnosis system includes the gateway, the server part and the expert system part. Among them, the gateway adopts the CAN bus-to-Ethernet gateway produced by a certain company, which converts the CAN signal of the hydraulic test bench into an Ethernet signal, and the gateway and The server is connected. When the client of the expert system submits a communication application to the server, the expert system receives the signal from the server through the network interface, and converts the Ethernet signal into a parameter signal of the hydraulic system.

[0049] Expert system is the core of the present invention, see Figure 2a , 2b , the embodiment of the present invention includes the expert system of the remote intelligent fault diagnosis system of the hydraulic test bench:

[0050] The network interface receives the signal from...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a remote fault diagnosis system based on an expert system. The remote fault diagnosis system comprises a gateway and server part and the expert system part. The expert system is the core of the remote fault diagnosis system and comprises a network interface, a man-machine interface, a knowledge base, a database, an explanation machine and an inference machine, wherein the network interface receives and converts data transmitted by a server, the man-machine interface is used for conducting information interaction between a user and various modules of the expert system, the knowledge base is connected with the inference machine, the explanation machine and the like and used for storing facts and rules, the database is connected with the explanation machine, the inference machine and the interface and used for storing the inference procedure, information records and the like, the explanation machine explains the faults through the method shown through the inferencepath based on rule inference, and the inference machine diagnoses the faults through inference due to fusion of two mechanisms including the neural network and the rule-based inference.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of a hydraulic test bench, and relates to a remote fault diagnosis system and method based on an expert system. Background technique [0002] With the rapid development of science and technology, my country's national defense force is becoming stronger and stronger, and the application technology of hydraulic pressure in military industry is also becoming more and more mature. The hydraulic system is the power source of many equipments, and the reliability and safety of the system operation affect the working performance of the equipment to varying degrees. As a key testing equipment, the hydraulic test bench is widely used in aviation, aerospace, shipbuilding and military industries, and its performance directly affects the evaluation of the performance of the tested object. The essence of the hydraulic test bench is also a hydraulic system. my country's hydraulic test bench testing tech...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F15B19/00
CPCF15B19/005
Inventor 谈宏华童权煜刘波
Owner WUHAN INSTITUTE OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap