| 摘要 |
A control system (16) and a method for manoeuvring an elongated element (1) which projects in a pivotable manner from a foundation (13) are described, wherein the landing place (2) is provided with a camera-readable pattern (22); the projecting end portion (12) is provided with at least one camera (31, 32) which is arranged to imagine the graphic pattern (22) when said end portion (12) is near the landing place (2); the at least one camera (31, 32) is connected in a signal-communicating manner to an image processor (161); and the image processor (161) is arranged to determine the position of the at least one camera (31, 32) relative to the pattern (22) by an image analysis and convert the image information into control parameters for the control system (16) to position the projecting end portion (12) relative to the landing place (2). |
