Title:
MONITORING SYSTEM, MONITORING METHOD, AND COMPUTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/214454
Kind Code:
A1
Abstract:
A monitoring system (1) comprises: a shaker (10) that vibrates a tubular structure (40) in each of a first axis direction and a second axis direction perpendicular to the first axis; one or more triaxial accelerometers (20) that are installed on the tubular structure (40) and measure acceleration each time the tubular structure (40) is vibrated in each of the first and second axis directions; and a computing device (30) that derives a vibration mode for each of the first and second axis directions on the basis of the measured values of the acceleration, and determines whether a U-bolt has fallen off or a supporting hardware has fallen off on the basis of the vibration mode.
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Inventors:
KOBAYASHI DAIKI (JP)
NAKANISHI TOSHIKI (JP)
SAKURADA YOSUKE (JP)
ARATAKE ATSUSHI (JP)
NAKANISHI TOSHIKI (JP)
SAKURADA YOSUKE (JP)
ARATAKE ATSUSHI (JP)
Application Number:
PCT/JP2022/019534
Publication Date:
November 09, 2023
Filing Date:
May 02, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01M99/00; G01M13/00
Domestic Patent References:
| WO2018225292A1 | 2018-12-13 |
Foreign References:
| JP2017219369A | 2017-12-14 | |||
| JP2017095980A | 2017-06-01 | |||
| JP2004301792A | 2004-10-28 | |||
| CN112162034A | 2021-01-01 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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