Position-force combination control with passive flexibility for versatile in-hand manipulation based on posture interpolation

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

In-hand manipulation is often needed to accomplish a practical task after grasping an object. In-hand manipulation of variously sized and shaped objects in multi-fingered hands without dropping the object is challenging. In this paper we suggest a combined strategy of force control and passive adaptation through soft fingertips with simple interpolation control to achieve in-hand manipulation between various postures and with various objects. While passive compliance can be achieved in numerous ways, this paper uses soft skin, as it does not require complex mechanisms and was easy to integrate in the robot hand (Allegro hand). Softness has proven to significantly ease object grasping, and the current paper shows the importance of softness also for in-hand manipulation. In particular, the simple interpolation strategy between various postures is successful when combined with soft fingertips, with or without force control, but fails with hard fingertips. Objects of varying size, shape and hardness were reliably manipulated. While the soft fingertips enabled good results in our experiments, a sufficiently precise definition of the postures and object size was required. When combining the interpolation control with a force control strategy, bigger errors in defining the posture and object size are possible, without deforming or dropping the object, and the resultant force is lower. As a result, we achieved robust in-hand manipulation between various postures and with objects of different size, shape and hardness.

本文言語English
ホスト出版物のタイトルIROS 2016 - 2016 IEEE/RSJ International Conference on Intelligent Robots and Systems
出版社Institute of Electrical and Electronics Engineers Inc.
ページ2542-2547
ページ数6
ISBN(電子版)9781509037629
DOI
出版ステータスPublished - 2016 11 28
イベント2016 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2016 - Daejeon, Korea, Republic of
継続期間: 2016 10 92016 10 14

出版物シリーズ

名前IEEE International Conference on Intelligent Robots and Systems
2016-November
ISSN(印刷版)2153-0858
ISSN(電子版)2153-0866

Other

Other2016 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2016
国/地域Korea, Republic of
CityDaejeon
Period16/10/916/10/14

ASJC Scopus subject areas

  • 制御およびシステム工学
  • ソフトウェア
  • コンピュータ ビジョンおよびパターン認識
  • コンピュータ サイエンスの応用

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