成果報告書詳細
管理番号20160000000520
タイトル*平成27年度中間年報 インフラ維持管理・更新等の社会課題対応システム開発プロジェクト イメージング技術を用いたインフラ状態モニタリングシステム開発 位相解析手法を用いたインフラ構造物用画像計測システムの研究開発
公開日2016/7/7
報告書年度2015 - 2015
委託先名ジェイアール西日本コンサルタンツ株式会社 株式会社共和電業 4Dセンサー株式会社 国立大学法人福井大学
プロジェクト番号P14011
部署名ロボット・AI部
和文要約
英文要約Title: Research and Development for Imaging Measurement System for Infrastructure Using Phase Analysis Method (FY2014-FY2018) FY2015 Annual Report

In 2015, the main activities of our project was the investigation of the possibility of the conventional sampling moire method applied to the displacement measurement and the rotation angle measurement, developments of a new algorithm to measure the 3D displacement and a new algorithm to measure displacement without using any grating patterns. It was confirmed that the rotation angle was measured with less than 3/100,000 rad. We proposed that the rotation angle is employed as a new management index for a bridge.

1. Investigation of the possibility of the conventional sampling moire method for railway bridges and general structures.
Several experiments were performed for railway bridges and several civil structures such as supporting columns of a train station, a tower of a windmill, a road bridge, a tunnel and a revetment to evaluate the possibility of the conventional sampling moire method.

2. Development of a new algorithm to measure the 3D displacement
A calibration method to measure 3D displacement using multiple cameras was proposed. The principle was confirmed with an experimental result. An analysis software was also developed. Several experiments in a laboratory to evaluate the algorithm to measure the 3D displacement were performed. The error of the measurement results for the z-direction was 0.01 mm and the standard deviation was 0.02 mm in the case that the distance was 3 m.

3. Development of a new algorithm to measure displacement without using any grating patterns
An algorithm to measure displacement without using any grating patterns was proposed. The point is to obtain the actual distance between the two lines accurately. We tried to use Fourier transform to obtain it accurately. An experiment to evaluate the algorithm was performed.

4. Investigation for the standardization
Investigation for a possibility and the procedures of the registration for the standardization of JSNDI was carried out continuously. Investigation for a possibility to some consumer specifications was also investigated. We consider to register our method on a database system of NETIS (New Technology Information System).
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