Title:
GROUND DEFORMATION ANALYSIS DEVICE AND GROUND DEFORMATION ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2024/004216
Kind Code:
A1
Abstract:
The present invention is provided with: a time series saliency data acquisition unit (12) for converting time series deformation data indicating ground surface deformation to time series saliency data representative of the saliency of the deformation; a candidate precursor site detection unit (13) that takes a point in time where a saliency index value is shown to be greater than a threshold value to be an abnormal point in time, and detects a predetermined number or more of predetermined unit areas where the abnormal point in time is identical as being candidate precursor sites for a geological disaster; and a precursor site extraction unit (14) for extracting, as being a precursor site for a geological disaster, predetermined unit areas present at locations at an interval of a predetermined distance or less from one another, from among the detected candidate precursor sites. On the basis of, rather than time series deformation data itself, the time series saliency data converted from the time series deformation data, only the predetermined number or more of predetermined unit areas determined to be abnormal points in time at identical points in time are detected as being candidate precursor sites. Furthermore, solely those candidate precursor sites present at locations at an interval of a predetermined distance or less from one another are extracted as being a precursor site. As a result of the foregoing, it is possible to more accurately detect ground deformation conditions and identify precursors of geological disasters.
Inventors:
ARYA ABHINANDAN (JP)
PAMUNGKAS BUJED (JP)
MISRA PRAKHAR (JP)
CHAVHAN RISHABH (JP)
PAMUNGKAS BUJED (JP)
MISRA PRAKHAR (JP)
CHAVHAN RISHABH (JP)
Application Number:
PCT/JP2022/026508
Publication Date:
January 04, 2024
Filing Date:
July 01, 2022
Export Citation:
Assignee:
SYNSPECTIVE INC (JP)
International Classes:
G01S13/90; G01C7/02; G06T1/00
Domestic Patent References:
| WO2021192038A1 | 2021-09-30 |
Foreign References:
| JP2021056008A | 2021-04-08 | |||
| JPH1031511A | 1998-02-03 | |||
| JP2020165746A | 2020-10-08 | |||
| JP2009276260A | 2009-11-26 | |||
| JP2019215280A | 2019-12-19 | |||
| CN111257873A | 2020-06-09 |
Attorney, Agent or Firm:
TACHIBANA Kazuyuki (JP)
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