Title:
TIRE DEGRADATION EVALUATION SYSTEM, AND METHOD AND PROGRAM THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/207265
Kind Code:
A1
Abstract:
According to the present invention, degradation of a material of a used secondhand tire is highly accurately evaluated by measuring a crack generated in a region of the tire, which has not been worn due to use of the tire. The present invention measures a displacement of a ground contacting surface of the tire to generate distance data (14) from which a crest part and a valley part of the ground contacting surface can be determined, captures an image of the ground contacting surface to generate ground contacting surface image data (15), extracts, from a region of the valley part, an evaluation region for detecting a crack to generate evaluation region image data (19), smoothing the resultant data and removes noise to generate smoothened image data (20), performs edge processing and clarifies the boundary part of the crack to generate edge-processed image data (21), calculates the ratio of the crack of the edge-processed image data (21) to the entire boundary part to generate crack ratio data (22), and outputs the crack ratio data (22).
Inventors:
YOSHIKAWA NICHIO (JP)
TANAKA KENJI (JP)
TANAKA KENJI (JP)
Application Number:
PCT/JP2017/017595
Publication Date:
November 15, 2018
Filing Date:
May 09, 2017
Export Citation:
Assignee:
SEAPARTS CO LTD (JP)
International Classes:
G01B11/30
Foreign References:
| JP2015161575A | 2015-09-07 | |||
| JP2017003404A | 2017-01-05 | |||
| JP2014135007A | 2014-07-24 | |||
| JP2016191714A | 2016-11-10 | |||
| US20160221404A1 | 2016-08-04 |
Attorney, Agent or Firm:
INOUE Hiroshi (JP)
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