Method for interpolating curve with variable interpolation cycle on basis of interpolation precision and limitation of accelerations
A technology of interpolation period and maximum acceleration, applied in the direction of program control, computer control, general control system, etc., can solve the problems of no consideration of processing error, high computational complexity of complex curves, large processing error, etc., to reduce computational complexity , Reduce the amount of data transmission, improve the effect of processing efficiency
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[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation process and performance analysis of the present invention will be further described in detail below in conjunction with the accompanying drawings and simulation examples.
[0021] see figure 1 , introduces the variable interpolation period curve interpolation method based on the interpolation accuracy and the maximum acceleration control of each drive shaft of the machine tool for the numerical control machine tool of the present invention, the method includes two operation steps:
[0022] Step 1, based on the set interpolation accuracy, approach the curve to be interpolated with a large number of tiny straight line segments (see figure 2 ), and the approximation error between each tiny straight line segment and the curve to be interpolated meets the interpolation accuracy requirements.
[0023] Step 2: Determine the interpolation cycle and the number o...
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