SYSTEM, METHOD, PROGRAM, AND STORAGE MEDIUM FOR DEDUCING DISPLACEMENT OF ELONGATED STRUCTURE

WIPO Patent Application WO/2021/019602

A1

A displacement deduction system 1 is provided with: accelerometers 11-1, 11-2, ..., 11-m (hereinafter collectively referred to as an accelerometer 11) disposed at predetermined intervals in the x-axis direction which is the longitudinal direction of a bridge 9; and a data processor 12 that receives, from the accelerometer 11, acceleration data indicating measurements of acceleration measured by the accelerometer 11, and that deduces, from the acceleration in the x-axis direction indicated by the acceleration data, the relation between the distance from a reference position in the x-axis direction and displacement from a reference position in the z-axis direction. By using the data processor 12, the displacement of a given portion, in the x-axis direction, of the bridge 9 is deduced. In addition, the data processor 12 calculates, at each position (measurement position) where the accelerometer 11 is located, a minute variation component in displacement of the bridge 9 in the z-axis direction from the acceleration in the z-axis direction indicated by the acceleration data, adds the calculated minute variation component to the deduced displacement in the z-axis direction, and thereby deduces detailed displacements of the bridge 9 at respective measurement positions.

UMEKAWA YUTARO (JP)
SUGANUMA HISATADA (JP)

PCT/JP2019/029421

February 04, 2021

July 26, 2019

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TOKYO TECH ENG SOLUTIONS INC (JP)

G01C15/00; G01B21/32

JP2019052467A	2019-04-04
JP2009192504A	2009-08-27
CN204007499U	2014-12-10
JP2018004387A	2018-01-11
JPH0545373A	1993-02-23
JP2008281508A	2008-11-20

ASAHI PATENT FIRM (JP)

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