The SDQ-based Message Estimator for Motion NCS

Chen-Chou Hsieh, Pau-Lo Hsu*, Bor-Chyun Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

The limitation of network bandwidth leads to data dropout of communication which degrades performance of NCS. For motion control system implemented with NCS, the missing interpolation messages will cause motion error and it can be compensated by applying the message estimator. However, the distribution of the missing data will be more relevant to motion accuracy in NCS even with the same dropout rate. This paper proposes a novel performance index, the short-window dropout quantities (SDQ) which is an estimation of both the data dropout rate and the messing message distribution, for the motion NCS. Furthermore, based on the estimation of SDQ. the intelligent motion message estimator (IMM) is proposed in this paper to effectively compensate for data dropout effect. Finally, simulation results of a multi-axis motion NCS indicate that the present IMM significantly improves motion contouring accuracy compared with the 1-delay estimator or the Taylor estimator.
Original languageEnglish
Title of host publicationASCC: 2009 7TH ASIAN CONTROL CONFERENCE, VOLS 1-3
PublisherIEEE
Pages931-936
ISBN (Print)978-1-4244-5440-2
StatePublished - 2009
Event7th Asian Control Conference (ASCC 2009) - Hong Kong, Hong Kong
Duration: 27 Aug 200929 Aug 2009

Publication series

NameAsian Control Conference ASCC
ISSN (Print)2072-5639

Conference

Conference7th Asian Control Conference (ASCC 2009)
CountryHong Kong
Period27/08/0929/08/09

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