An Effective Method on Applying Feedback Error Learning Scheme to Functional Electrical Stimulation Controller

• WATANABE Takashi

  Information Synergy Center, Tohoku University

• KUROSAWA Kenji

  Forensic Science Laboratory, Ishikawa Pref. Police H.Q.

• YOSHIZAWA Makoto

  Information Synergy Center, Tohoku University

Abstract

A Feedback Error Learning (FEL) scheme was found to be applicable to joint angle control by Functional Electrical Stimulation (FES) in our previous study. However, the FEL-FES controller had a problem in learning of the inverse dynamics model (IDM) in some cases. In this paper, methods of applying the FEL to FES control were examined in controlling 1-DOF movement of the wrist joint stimulating 2 muscles through computer simulation under several control conditions with several subject models. The problems in applying FEL to FES controller were suggested to be in restricting stimulation intensity to positive values between the minimum and the maximum intensities and in the case of very small output values of the IDM. Learning of the IDM was greatly improved by considering the IDM output range with setting the minimum ANN output value in calculating ANN connection weight change.

Journal

• IEICE Transactions on Information and Systems

  IEICE Transactions on Information and Systems E92-D (2), 342-345, 2009

  The Institute of Electronics, Information and Communication Engineers

Keywords

• functional electrical stimulation
• FES
• feedback error learning

Details

• CRID: 1390001204377704576
• NII Article ID: 10026807746
• NII Book ID: AA10826272
• DOI: 10.1587/transinf.e92.d.342
• ISSN: 17451361
• ISSN: 09168532
• Web Site: http://www.jstage.jst.go.jp/article/transinf/E92.D/2/E92.D_2_342/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed