CONTROL DEVICE AND INVESTIGATION METHOD

To make it possible to investigate the inside of protective members of a communication facility buried in the ground without excavation.SOLUTION: A control device 10 includes a control unit 11 that obtains a captured image from a camera 25 of an endoscope device 20 positioned outside a conduit 70 and inside a protective member 80, passing through a whole 72 penetrating a wall surface of the conduit 70 disposed inside the protective member 80 buried in the ground, and investigates at least one of the shape and deterioration situation of the inner surface of the protective member 80 based on the captured image.SELECTED DRAWING: Figure 2 【課題】地中に埋設された通信設備の防護部材の内部を非開削で調査することを可能にする。【解決手段】制御装置１０は、地中に埋設された防護部材８０の内部に配設された管路７０の壁面を貫通する孔７２を通過して、管路７０の外部であって、防護部材８０の内部に位置づけられた、内視鏡装置２０のカメラ２５から撮影画像を取得し、撮影画像に基づき、防護部材８０の内面の形状及び劣化状況の少なくともいずれかを調査する、制御部１１を備える。【選択図】図２