TUNNEL WALL INSPECTION DEVICE AND TUNNEL WALL INSPECTION PROGRAM

To provide a tunnel wall inspection device and a tunnel wall inspection program capable of easily grasping a deformed part of the wall of the tunnel.SOLUTION: The system includes an infrared image acquisition device 10 which acquires an infrared thermal image every time the constant distance is move...

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Bibliographische Detailangaben
Hauptverfasser: TACHIBANA KIKUO, KAWASHIMA CHIAKI, TAKAMATSU MANABU, BANDO YASUHIRO, SAKAMOTO MITSUTERU
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a tunnel wall inspection device and a tunnel wall inspection program capable of easily grasping a deformed part of the wall of the tunnel.SOLUTION: The system includes an infrared image acquisition device 10 which acquires an infrared thermal image every time the constant distance is moved in the longitudinal direction of a tunnel, a laser point group acquisition device 12 which acquires a laser point group at a constant period, a controller 16 which determines a first distance along the tunnel wall between the reference line in the direction perpendicular to the longitudinal direction of the tunnel and each pixel of the infrared thermal image on the basis of the reference line set along the longitudinal direction and a 3-dimensional coordinates set in the pixel of the infrared thermal image on the basis of the laser point group on a ceiling of the tunnel and a second distance in the longitudinal direction of the tunnel between the coordinate origin set in the tunnel and each pixel of the infrared thermal image, and develops the infrared thermal image on the basis of the first and second distances.SELECTED DRAWING: Figure 1 【課題】トンネルの壁面の変状箇所を容易に把握することができるトンネル壁面検査装置及びトンネル壁面検査プログラムを提供する。【解決手段】赤外線画像取得装置10が、トンネルの長手方向に一定距離移動する毎に赤外線熱画像を取得し、レーザ点群取得装置12が一定周期でレーザ点群を取得し、制御装置16は、トンネルの天井に、その長手方向に沿って設定された基準線と、上記レーザ点群に基づいて赤外線熱画像の画素に設定された3次元座標とに基づき、トンネルの長手方向に直交する方向において基準線と赤外線熱画像の各画素とのトンネル壁面に沿った第1の距離、及びトンネル内に設定された座標原点と赤外線熱画像の各画素とのトンネルの長手方向における第2の距離を求め、これらに基づいて赤外線画像を2次元平面に展開する。【選択図】図1