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A Study on Implementation of Service Robot Platform for Mess-Cleanup

정리정돈용 서비스 로봇 플랫폼의 구현 연구

  • Kim, Seung-Woo (Department of Electrical Information Engineering, Soonchunhyang University) ;
  • Kim, Hi-Jun (Department of Electrical Information Engineering, Soonchunhyang University)
  • 김승우 (순천향대학교 전자정보공학과) ;
  • 김하이준 (순천향대학교 전자정보공학과)
  • Received : 2012.01.17
  • Accepted : 2012.03.30
  • Published : 2012.05.01

Abstract

In this paper, a Smart Home Service Robot, McBot II, which performs mess-cleanup function etc. in house, is designed much more optimally than other service robots. It is newly developed in much more practical system than McBot I which we had developed two years ago. One characteristic attribute of mobile platforms equipped with a set of dependent wheels is their omni- directionality and the ability to realize complex translational and rotational trajectories for agile navigation in door. An accurate coordination of steering angle and spinning rate of each wheel is necessary for a consistent motion. This paper develops trajectory controller of 3-wheels omni-directional mobile robot using fuzzy azimuth estimator. A specialized anthropomorphic robot manipulator which can be attached to the housemaid robot McBot II, is developed in this paper. This built-in type manipulator consists of both arms with 4 DOF (Degree of Freedom) each and both hands with 3 DOF each. The robotic arm is optimally designed to satisfy both the minimum mechanical size and the maximum workspace. Minimum mass and length are required for the built-in cooperated-arms system. But that makes the workspace so small. This paper proposes optimal design method to overcome the problem by using neck joint to move the arms horizontally forward/backward and waist joint to move them vertically up/down. The robotic hand, which has two fingers and a thumb, is also optimally designed in task-based concept. Finally, the good performance of the developed McBot II is confirmed through live tests of the mess-cleanup task.

Acknowledgement

Supported by : 한국연구재단

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