Nonparametric Analysis of Two Distributed Motion Control Algorithms

This paper presents the results obtained during the development and implementation of two distributing motion control algorithms as part of an X-Y cutting table. One algorithm issues commands to the motor drivers on every sample cycle while the other does it only when a control point is reached. Both algorithms have the same input data set, control points that define the required path for the cutting torch. The analysis included two tests: A Wilcoxon rank sum test to find if the outcomes of the algorithms were different and a sign test to find if algorithms were able meet the design specifications. The analysis included four predefined specifications from the specimens, metal parts. All tests were based on a sample size seven, a .05 significance level and a two-tailed test. We found that algorithms outcomes were different and one of the algorithms was able to meet the design specifications of a part used as the test specimen.