Title:
WEAR MEASUREMENT DEVICE AND WEAR MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/129368
Kind Code:
A1
Abstract:
[Problem] To provide a wear measurement device and wear measurement method that make it possible to determine a value equivalent to the remaining diameter of a trolley wire having three wear surfaces. [Solution] Images I1, I2 photographed by first and second line sensor cameras 11, 12 disposed on the roof of a vehicle 10 are analyzed, and real coordinates P0 of the central point of a trolley wire are calculated from image I1. The height of the lowermost surface of the trolley wire 16 is determined on the basis of information acquired by a trolley-wire lowermost-surface-position measurement means. The real coordinates P0-P5 of boundary points p1-p5 are calculated using image I1 and the height of the lowermost surface of the trolley wire 16. The cross-sectional wear area S of the trolley wire 16, which has three wear surfaces, is calculated on the basis of the real coordinates P0-P5. On the basis of the cross-sectional wear area S of the three-wear-surface trolley wire 16, the remaining diameter of a horizontal-wear trolley wire 16A that has the same cross-sectional area as that of the three-wear-surface trolley wire 16 and only has a horizontal wear part 16a is calculated as a value H equivalent to the remaining diameter of the three-wear-surface trolley wire 16.
Inventors:
KAMEYAMA SATORU (JP)
WATABE YUSUKE (JP)
WATABE YUSUKE (JP)
Application Number:
PCT/JP2019/039980
Publication Date:
June 25, 2020
Filing Date:
October 10, 2019
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
G01B11/08; B60M1/28; G01B21/00; G06T7/62
Foreign References:
| JP2016142540A | 2016-08-08 | |||
| JP4635657B2 | 2011-02-23 |
Attorney, Agent or Firm:
SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)
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