采用特殊设计的传动机构结合PLC控制物体作直线往复运动和在预定位置作自转运动。
Special designed drive outfit and PLC are adopted to control object moving to-and-fro and rotating at prearranged positions.
控制模型的目标是建立使小车和滑轮组尽快到达预定位置，并消除钢丝绳和负载由惯性所致摆角的控制方案。
A control scheme that trolley and pulley blocks can arrive at the preset positions as soon as possible and swinging Angle caused by wire rope and load inertias can be removed is obtained.
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