High-Speed and High-Accuracy Schemes of Coordinate Calculation and End Point Judgment for Elliptic Interpolation

Abstract:

To implement high-speed and high-accuracy elliptic interpolation required in high-performance motion control, novel coordinate calculation and end point judgment schemes are proposed. Data Sample method is used for coordinate calculation. High accuracy is guaranteed by avoiding approximation calculation of interpolation points. Exact end point judgment is constructed based on the position relationship of the current interpolation point, the next interpolation point and the end point to avoid incomplete interpolation or over interpolation of elliptic trajectories. The proposed schemes feature fewer amounts of calculation and high accuracy and can produce any elliptic trajectories.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 2664-2668
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.2664
• Online since: November 2012
• Authors: Shi Yong Wang, Di Li
• Keywords: Computerized Numerical Control (CNC), Elliptic Interpolation, End Point Judgment, Motion Control

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