Next Article in Journal
A Comparative Study of the Applied Methods for Estimating Deflection of the Vertical in Terrestrial Geodetic Measurements
Previous Article in Journal
A Stimuli-Responsive Biosensor of Glucose on Layer-by-Layer Films Assembled through Specific Lectin-Glycoenzyme Recognition
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(4), 564; doi:10.3390/s16040564

Dynamic Measurement for the Diameter of A Train Wheel Based on Structured-Light Vision

Key Laboratory of Precision Opto-Mechatronics Technology, Ministry of Education, Beihang University, No. 37 Xueyuan Road, Haidian District, 100191 Beijing, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 2 March 2016 / Revised: 14 April 2016 / Accepted: 15 April 2016 / Published: 20 April 2016
(This article belongs to the Section Physical Sensors)

Abstract

Wheels are very important for the safety of a train. The diameter of the wheel is a significant parameter that needs regular inspection. Traditional methods only use the contact points of the wheel tread to fit the rolling round. However, the wheel tread is easily influenced by peeling or scraping. Meanwhile, the circle fitting algorithm is sensitive to noise when only three points are used. This paper proposes a dynamic measurement method based on structured-light vision. The axle of the wheelset and the tread are both employed. The center of the rolling round is determined by the axle rather than the tread only. Then, the diameter is calculated using the center and the contact points together. Simulations are performed to help design the layout of the sensors, and the influences of different noise sources are also analyzed. Static and field experiments are both performed, and the results show it to be quite stable and accurate. View Full-Text
Keywords: train wheel diameter; dynamic measurement; structured-light vision; machine vision train wheel diameter; dynamic measurement; structured-light vision; machine vision
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gong, Z.; Sun, J.; Zhang, G. Dynamic Measurement for the Diameter of A Train Wheel Based on Structured-Light Vision. Sensors 2016, 16, 564.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top