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Method to displace three dimensional structures at least with three degrees of freedom such as in theater scene setting
Method to displace three dimensional structures at least with three degrees of freedom such as in theater scene setting
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机译：至少在三个自由度上置换三维结构的方法，例如在剧院场景设置中
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摘要
The invention relates to a method of moving, with at least three degrees of freedom, especially in the theatrical sector on or under a stage, a complex three-dimensional structure which is supported by a plurality of independently controllable lifting machines or the like. In the method, three virtual, parallel reference axes (A, B, C) are established in the space, on which axes one point of attack (a, b, c) in each case is moved upwards or downwards as a function of a positioning signal in each case. A virtual surface is drawn through these points of attack. A plurality of independent lifting machines or the like are installed over or under this surface. For each lifting machine, a weighting is determined as a function of its position relative to each reference axis, the weighting being a measure of the extent to which the operation of the machine in question is influenced by the movement of the points of attack on the reference axes. The direction and speed of movement of the points of attack on the reference axes are predetermined as positioning signals. Via the weighting, partial control signals are generated for each machine in accordance with the proportions of its influence, by the movement of the points of attack. The partial control signals for each machine are summed and passed to the individual allocated machine as an overall control signal. IMAGE
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