Method for detecting abnormal conditions and part degeneration of subway vehicle door system synchronously

A technology of abnormal working condition and synchronous detection, applied in the direction of railway vehicle testing, etc., can solve the problem of inability to synchronously detect the deterioration of components under abnormal working conditions of the subway vehicle door system, and achieve the effect of being easy to understand, avoiding adverse effects, and realizing maintenance guidance.

Active Publication Date: 2017-09-22
NANJING KANGNI MECHANICAL & ELECTRICAL +1
View PDF10 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems in the prior art that the abnormal wo

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
  • Method for detecting abnormal conditions and part degeneration of subway vehicle door system synchronously
  • Method for detecting abnormal conditions and part degeneration of subway vehicle door system synchronously
  • Method for detecting abnormal conditions and part degeneration of subway vehicle door system synchronously

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] The present invention will be further described below in conjunction with the accompanying drawings of the specification. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0046] Such as figure 1 As shown, the method for synchronous detection of abnormal operating conditions and component degradation of the subway vehicle door system of the present invention includes the following steps:

[0047] Step (A), preprocessing the data of the subway vehicle door system, including time domain feature extraction processing, frequency domain feature extraction processing, and data standardization processing,

[0048] The time domain feature extraction process includes the following steps,

[0049] (A11), using statistical analysis methods to extract the time domain characteristic values ​​of the door system data, including the first-order statis...

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 method for detecting abnormal conditions and part degeneration of a subway vehicle door system synchronously. The method comprises that data of the subway vehicle door system is preprocessed; on the basis of a MeanShift algorithm, the preprocessed data of the subway vehicle door system is calculated to obtain a density center of normal data and a density center of degeneration data; the neighborhood radii of the density centers are selected adaptively, clustering modeling of the data is completed, and abnormal stray data is obtained by detection; and part degeneration information is obtained, and guidance is provided for maintenance. According to the invention, adverse influence of abnormal points, caused by the abnormal condition, on system clustering is avoided, an accurate and reliable system part degeneration model can be constructed, the matching degree of part degeneration characteristics provides reference for maintenance, the maintenance cost of the system is reduced, and the method is easy to understand, convenient to enforce and has good application prospects.

Description

technical field [0001] The invention relates to a synchronous detection method for abnormal working conditions and component degradation of a subway vehicle door system, belonging to the technical field of rail transit detection. Background technique [0002] With the rapid development of urban rail transit, the subway, as an important part of urban transportation, has an increasing impact on people's work and life. As a key component of the subway, the subway vehicle door system has a high failure rate on the subway The safe operation of the door system constitutes a serious threat, so it is necessary to detect the degradation of the door system components, and to carry out effective and targeted maintenance on the system before the door system fails, so as to avoid the occurrence of system failures. At the same time, due to the interference of external environmental factors such as human extrusion during subway operation, the occurrence of abnormal working conditions such ...

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): G01M17/08
CPCG01M17/08
Inventor 韩光威吕建华陆宁云曹劲然许志兴史翔张伟朱文明
Owner NANJING KANGNI MECHANICAL & ELECTRICAL
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