| 摘要 |
Track-laying inspection vehicle for inspecting tunnel-like ducts, shafts or the like with a remote-controllable drive and a camera (4). According to the invention, the track-laying inspection vehicle (1) has a light source (5) which emits light forwards in the direction of travel and produces a defined shadow pattern. From the shape of the shadow pattern transmitted via the camera (4) on an obstacle, the distance, shape and inclination of the obstable can be determined. <IMAGE>
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