The Study of Jitter Correction Method for Numerical Control Fieldbus Based on Markov Chain Model

Author

Xinlong, Shao ; Zhenyu, Yin ; Dongsheng, Yang ; Mingzi, Xu

Author_Institution

Grad. Univ. of Chinese Acad. of Sci., Beijing, China

fYear

2012

fDate

27-29 Oct. 2012

Firstpage

1016

Lastpage

1020

Abstract

In this paper, the jitter correction method based on Markov chain model was achieved for Numerical Control Field-bus. To improve the accuracy of numerical control field-bus synchronization, transformation delays were sampled to obtain the state transition matrix. The mean of estimated values were accumulated based on Markov prediction estimates method. And the jitter of numerical control field bus was corrected. The test results showed that the worst jitter error can be reduced to 0.5μs. The requirement of numerical control field bus synchronization for NC high-speed and precise processing can be met.

Keywords

Markov processes; computerised numerical control; delays; field buses; interpolation; jitter; matrix algebra; synchronisation; CNC interpolator; Markov chain model; Markov prediction estimates method; computer numerical controller interpolator; estimated value mean; jitter correction method; numerical control fieldbus synchronization; state transition matrix; transformation delays; Computers; Conferences; Information technology; Markov chain; Numerical control field-bus; synchronization; synchronization jitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Information Technology (CIT), 2012 IEEE 12th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-4873-7

Type

conf

DOI

10.1109/CIT.2012.233

Filename

6392044