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NUMERICAL CONTROL SYSTEM, APPARATUS WITH STORAGE FUNCTION, AND NURBS CURVE INTERPOLATION METHOD
NUMERICAL CONTROL SYSTEM, APPARATUS WITH STORAGE FUNCTION, AND NURBS CURVE INTERPOLATION METHOD
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机译：数值控制系统，具有存储功能的装置和Nurbs曲线插值方法
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摘要
A numerical control system, an apparatus with a storage function, and an NURBS curve interpolation method. The method comprises: establishing a look-ahead buffer area, and saving buffer node data in the look-ahead buffer area (101); acquiring an interpolation speed of a current interpolation cycle according to the buffer node data, determining an interpolation point, and carrying out NURBS curve interpolation by means of the interpolation point (102); determining whether the NURBS curve interpolation is completed (103); and if the NURBS curve interpolation is not completed, entering the next interpolation cycle (104). By means of establishing a look-ahead buffer area, saving a curvature-limiting speed and a backward-limiting speed in an equal arc-length interval by means of the look-ahead buffer area, and maintaining the look-ahead buffer area according to an update method for the look-ahead buffer area, the acquisition amount of an algorithm can be reduced, thereby reducing the time overhead of each interpolation cycle, and also guaranteeing the real-time performance of interpolation.
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