Intelligent monitoring method and system for loosening positioning of steel structure bolt group

An intelligent monitoring, steel structure technology, applied in the testing of machine/structural components, neural learning methods, measuring devices, etc., to achieve the effect of improving accuracy, improving diagnostic accuracy, and accurate evaluation

Active Publication Date: 2021-11-05
武汉地震工程研究院有限公司
View PDF13 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a bolt loosening monitoring method, system, equipment, and storage medium based on a multi-head attention mechanism-improved convolutional neural network, which is used to

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
  • Intelligent monitoring method and system for loosening positioning of steel structure bolt group
  • Intelligent monitoring method and system for loosening positioning of steel structure bolt group
  • Intelligent monitoring method and system for loosening positioning of steel structure bolt group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] Below in conjunction with embodiments of the invention, an embodiment of the present invention, technical solutions clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention rather than all embodiments. Based embodiment of the present invention, those of ordinary skill in the art to make all the other embodiments without creative work obtained by, fall within the scope of the present invention.

[0063] See figure 1 A steel bolt loosening the group proposed by the invention Positioning intelligent monitoring system comprising: a data acquisition module connected in sequence 100, data processing module 200, evaluation module 300 state.

[0064] Data collection module 100, for the original multi-channel signal acquisition under different conditions of stress waves by the piezoelectric sensor monitoring apparatus;

[0065] The structure of the piezoelectric sensing means, such as monitoring figure 2 Shown, th...

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 an intelligent monitoring method and system for loosening positioning of a steel structure bolt group. The method comprises the following steps: collecting multi-channel stress wave signals under different working conditions through a piezoelectric sensing monitoring device; preprocessing the stress wave signals; performing phase-space reconstruction on the preprocessed stress wave signals according to an improved multivariable recurrence plot algorithm to obtain a multivariable recurrence plot of a corresponding working condition; training a multi-attention mechanism improved convolutional neural network model through the multivariable recurrence plot of the corresponding working condition; and performing steel structure bolt group loosening positioning through the convolutional neural network model improved by the multi-head attention mechanism. A recursive analysis method is introduced into the field of piezoelectric active sensing, multi-sensor information fusion is realized, a multivariable recursive plot and an improved convolutional neural network are combined to realize steel structure bolt group loosening positioning, and the diagnosis precision of the model is improved.

Description

Technical field [0001] The present invention belongs to the field of steel structure health monitoring, and more particularly to a steel structural bolt group loose positioning monitoring and intelligent monitoring method and system. Background technique [0002] The bolt connection has the advantages of easy construction, detachable, fatigue resistance, and is currently a major connection to the steel structure. However, under the action of cyclic load, complex environment, the steel structure bolt connection is very prone to loose, and if the bolt loosening site is not discovered in time, it will have a very disadvantage of the structure, and it is likely to cause engineering accidents. [0003] Based on the method of manual testing and failure to achieve real-time monitoring, there is a need to be related to the correlation between innovative, breakthrough methods, high accuracy, good accuracy, and good real-time bolts. The monitoring method of piezoelectric active sensing has...

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): G01L5/24G01M13/00G06N3/04G06N3/08
CPCG01L5/24G01M13/00G06N3/08G06N3/045
Inventor 江健冯谦陈乙轩朱念
Owner 武汉地震工程研究院有限公司
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