摘要 |
<p>The proposed method involves movement of the camera in the vertical and horizontal planes to match the movement of the crane jib end, as well as movement of the camera backwards and forwards along the crane jib (11). The jib crane comprises a modular hollow jib (11) made of at least two sections and mounted on a support (1) in such a way that it can rotate in the vertical and horizontal planes; a system (8) for balancing the weight of the jib; central (12) and lateral (13) struts which deflect tension cables (15); mechanisms (9) for applying tension to the tension cables; and a carriage (19) which can move backwards and forwards with the camera (20) along the modular hollow jib (11). The technical result obtainable with the claimed invention is that the centre of gravity of the jib is kept constant in relation to its pivot of rotation in the vertical plane when the camera moves along the crane jib.</p> |