Evaluation of reproduction speed changer based on delta-sigma modulator for high speed motion-reproduction

Naotaka Fujii, Seiichiro Katsura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The development of motion control enables robot manipulators to reproduce the humans motion as known as motion-copying system. This epochal system is expected to automate delicate tasks that has been treated by human workers. Moreover, the motion-copying system can reproduce the stored motion at high speed by scaling time-axis of the stored motion-data. Using this technique, the efficiency of the industry will be substantially improved. However, there are still some problems that obstruct the practical use of the high speed motion-reproduction. One of the serious problem is how to change the reproduction speed. Although the most simple method is varying the sampling period of the system during the motion-reproduction, this method has to deteriorate the performance of the motion-storing system. In addition, multiple times motion-storing are required to realize several reproduction speed. In this paper, a novel interpolation method based on delta-sigma modulator and the weighted average filter is proposed and evaluated for the implementation of the fractional speed motion-reproduction. The presented interpolation method can achieve the high speed motion-reproduction without degrading the performance of motion-storing system, moreover, it can generate arbitrary reproduction speed from only one-time motion-storing. The effectiveness of the interpolation method is evaluated through several simulations and experiments.

Original languageEnglish
Title of host publicationProceedings, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2762-2767
Number of pages6
ISBN (Print)9781479940325
DOIs
Publication statusPublished - 2014 Feb 24
Event40th Annual Conference of the IEEE Industrial Electronics Society, IECON 2014 - Dallas, United States
Duration: 2014 Oct 302014 Nov 1

Other

Other40th Annual Conference of the IEEE Industrial Electronics Society, IECON 2014
CountryUnited States
CityDallas
Period14/10/3014/11/1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Fujii, N., & Katsura, S. (2014). Evaluation of reproduction speed changer based on delta-sigma modulator for high speed motion-reproduction. In Proceedings, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society (pp. 2762-2767). [7048898] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2014.7048898