Title:
IMPACT SOUND DIAGNOSIS ASSISTANCE DEVICE, IMPACT SOUND DIAGNOSIS ASSISTANCE METHOD, IMPACT SOUND DIAGNOSIS ASSISTANCE SYSTEM, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/049741
Kind Code:
A1
Abstract:
This impact sound diagnosis assistance device comprises: an impact sound estimation unit for generating an estimated impact sound signal by estimating and suppressing a noise component included in an observed signal picked up when a concrete structure to be diagnosed for soundness is struck; a feature amount extraction unit for extracting a predetermined feature amount from the generated estimated impact sound signal; a determination unit that determines whether the feature amount, extracted by generating the estimated impact sound signal from the observed signal picked up when the concrete structure to be diagnosed for soundness was struck, is included in a sound range regarded as being sound, a deformed range regarded as being deformed, or an unknown range regarded as being unknown in terms of being sound or deformed, on the basis of classification information which has been generated by machine learning using feature amounts associated with sound concrete structures and feature amounts associated with deformed concrete structures, and which classifies a range in which feature amounts can be distributed into the sound range, the deformed range, and the unknown range; and an output unit for outputting a determination result .
Inventors:
TANABE NARI (JP)
FURUKAWA TOSHIHIRO (JP)
TAKAZAKURA YUICHI (JP)
SHIMIZU SHUNGO (JP)
KUWANO DAISUKE (JP)
FURUKAWA TOSHIHIRO (JP)
TAKAZAKURA YUICHI (JP)
SHIMIZU SHUNGO (JP)
KUWANO DAISUKE (JP)
Application Number:
PCT/JP2020/033671
Publication Date:
March 10, 2022
Filing Date:
September 04, 2020
Export Citation:
Assignee:
PUBLIC UNIV CORPORATION SUWA UNIV OF SCIENCE FOUNDATION (JP)
UNIV TOKYO SCIENCE FOUND (JP)
NEXCO EAST ENGINEERING COMPANY LTD (JP)
KUWAKI CIVIL CO LTD (JP)
UNIV TOKYO SCIENCE FOUND (JP)
NEXCO EAST ENGINEERING COMPANY LTD (JP)
KUWAKI CIVIL CO LTD (JP)
International Classes:
G01N29/04; G01N29/46
Domestic Patent References:
| WO2009116291A1 | 2009-09-24 |
Foreign References:
| JP6644342B1 | 2020-02-12 | |||
| JP2019090637A | 2019-06-13 | |||
| JP2012032176A | 2012-02-16 | |||
| JP2008236270A | 2008-10-02 | |||
| JP2013201722A | 2013-10-03 | |||
| US6581466B1 | 2003-06-24 |
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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