| Interpolation technology is of the core technology of numerical control technology.Its quality will affect the quality of numerical control system directly and is the tache in the dire need to be improved at present.As the continuous development of DSP technology,use DSP as core part of numerical control system is development trend of numerical control interpolation technology.Cubic B-spline interpolation algorithm is regarded as the research object in the dissertation,design the circuit of interpolation system on the foundation of the total design of numerical control interpolation,and realized on DSP cubic B-spline interpolation function.In chapter 1,there is an introduction.The background and the significance of the research are stated.The general situation of numerical control interpolation technology and B-spline interpolation and the development and application of the DSP technology are introduced.The main content of this dissertation is proposed.In chapter 2,the traditional and existing interpolation plans are introduced ,and DSP feature and advantages for NC interpolation are stated.Choose DSP chip by function, and the total design of numerical control interpolation is proposed.In chapter 3, introduce Time-sharing and cubic B-spline interpolation algorithm,two kinds of cubic B-spline interpolation algorithm is analyzed in detail.In chapter 4,the total structure of hardware circuit is introduced. And each part of circuits design and schematic diagram are expatiated.In chapter 5,the bootload and relocation on DSP are introduced first,then the software design between DSP and PCI module is introduced,give out two cubic B-spline interpolation procedure based on DSP.In chapter 6,on the foundation of above research achievement and theory,complete the testing of hardware and software debugging,the results achieved prospective effect.In chapter 7, the study contents and conclusion of the dissertation have been summarized, and the further research works have been forecast.
|
PDF Full Text Request