PROBLEM TO BE SOLVED: To provide an inspection method of a structure for detecting and identifying a portion which is deteriorated or damaged of an inspected structure and a state of deterioration or damage, prior to imaging an inspection image, setting a position suitable for imaging of the inspection image, then accurately controlling flight of a drone to the position without using a GPS, for efficiently acquiring a desired inspection image.SOLUTION: An inspection method of a structure using a drone comprises the steps of: acquiring images obtained by imaging an inspected structure from plural positions; acquiring an image of three-dimensional point group information of the inspected structure from the plural images; installing a total station TS in the vicinity of the inspected structure for acquiring pieces of ground three-dimensional coordinate information of the structure for three or more points; overlapping the pieces of ground three-dimensional coordinate information for the plural points to image information of the three-dimensional point group information, for acquiring ground three-dimensional coordinate information of three-dimensional point group information of the inspected structure; an imaging position on the ground three-dimensional coordinate information from the three-dimensional point group information; and guiding the drone mounting a camera to the imaging position by the TS for acquiring an inspection image of an inspected portion.SELECTED DRAWING: Figure 2

    【課題】被検査構造体の劣化・損傷個所およびその状態を検査画像撮影前にあらかじめ検知特定し、検査画像の撮影に適した位置を設定して、GPSを用いずに無人機をその位置に精度よく飛行制御して所望の検査画像を効率よく取得する構造物の検査方法を提供する。【解決手段】本発明の無人機を用いた構造物の検査方法は、被検査構造体を複数個所から撮影した画像を得るステップと、該複数画像から前記被検査構造体の三次元点群情報の画像を得るステップと、前記被検査構造体の近傍にトータルステーションTSを設置して該構造物の3点以上の地上三次元座標情報を得るステップと、該複数点の地上三次元座標情報を前記三次元点群情報の画像情報に重ねて前記被検査構造体の三次元点群情報の地上三次元座標情報を得るステップと、前記三次元点群情報から撮影位置を地上三次元座標情報で設定するステップと、カメラを搭載した無人機をTSにより前記撮影位置に誘導して前記被検査部位の検査画像を取得するステップとを踏むものとした。【選択図】図2


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    Title :

    INSPECTION METHOD OF STRUCTURE USING DRONE


    Additional title:

    無人機を用いた構造物等の検査方法


    Contributors:

    Publication date :

    2017-06-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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