| 摘要 |
The transmission of control signals to mobile apparatuses, for example to a bucket-wheel excavator or a crane, involves difficulties when the apparatus has to travel long distances in use. It is proposed according to the invention to use a line (2) having at least one optical fibre (3) moving with it for the power supply to the apparatus, which line (2) is connected to a control line (9) by means of an electrooptical coupling element (8), and which is guided on the apparatus side through the hollow shaft (4) of a line drum (1) which holds the supply line, and is connected to a further electrooptical coupling element (10) whose output is connected via a slip ring (6) and brushes (12) to a control line which leads to the apparatus. <IMAGE> |
