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Control and VR Navigation of a Gait Rehabilitation Robot with Upper and Lower Limbs Connections

상하지가 연동된 보행재활 로봇의 제어 및 VR 네비게이션

  • 본단 노반디 (경상대학교 기계항공공학부) ;
  • 윤정원 (경상대학교 기계항공공학부 항공기부품기술연구센터)
  • Published : 2009.03.01

Abstract

This paper explains a control and navigation algorithm of a 6-DOF gait rehabilitation robot, which can allow a patient to navigate in virtual reality (VR) by upper and lower limbs interactions. In gait rehabilitation robots, one of the important concerns is not only to follow the robot motions passively, but also to allow the patient to walk by his/her intention. Thus, this robot allows automatic walking velocity update by estimating interaction torques between the human and the upper limb device, and synchronizing the upper limb device to the lower limb device. In addition, the upper limb device acts as a user-friendly input device for navigating in virtual reality. By pushing the switches located at the right and left handles of the upper limb device, a patient is able to do turning motions during navigation in virtual reality. Through experimental results of a healthy subject, we showed that rehabilitation training can be more effectively combined to virtual environments with upper and lower limb connections. The suggested navigation scheme for gait rehabilitation robot will allow various and effective rehabilitation training modes.

Keywords

References

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