새로운 와이어 구동방식 외골격 보조기의 설계 및 제어

• Published : 2005.11.01

Abstract

Recently the exoskeletal power assistive equipment which is a kind of wearable robot has been widely developed to help the human body motion. For the elderly people and patients, however, some limits exist due to the weight and volume of the equipments. As a feasible solution, a tendon-driven exoskeletal power assistive device fur the lower body, and caster walker are proposed in this research. Since the caster walker carries the heavy items, the weight and volume of the wearable exoskeleton are minimized. The key control is used to generate the joint torque required to assist motions such as sitting, standing and walking. Experiments were performed for several motions and the EMG sensors were used to measure the magnitude of assistance. When the motion of sitting down and standing up was compared with and without wearing the proposed device, the $25\%$ assistance was acquired.

References

1. H. Kazerooni, BLEEX, Mechanical Engineering Department of U. C. Berkeley, At URL http://www.me.berkeley.edu, 2004
2. S. Lee and Y. Sankai, 'Power assist control for walking aid by HAL based on phase sequence and myoelectricity,' International Conference on Control, Automation and System, p. 353-357, 2001
3. K. Kasaoka and Y. Sankai, 'Predictive control estimating operator's intention for stepping-up motion by exo-skeleton type power assist system HAL,' International Conference on Intelligent Robots and Systems, p. 1578-1583, 2001 https://doi.org/10.1109/IROS.2001.977204
4. H. Kawamoto and Y. Sankai, 'EMG-based hybrid assistive leg for walking aid using feedforward controller,' International Conference on Control, Automation and system, p. 190-193, 2001
5. K. Yamamoto, M. Ishii, H. Noborisaka, and K Hyodo, 'Stand alone wearable power assisting suit sensing and control systems-,' Proceeding of IEEE International Workshop on Robot and Human Interactive Communication, p. 661-666, 2004 https://doi.org/10.1109/ROMAN.2004.1374841
6. J. Pratt, B. Krupp, C. Morse, 'The roboknee : an exoskeleton for enhancing strength and endurance during walking,' Proceedings of the IEEE International Conference on Robotics and Automation, 2004 https://doi.org/10.1109/ROBOT.2004.1307425
7. J. Joaquin and H. Herr, 'Adaptive control of a variable-impedance ankle-foot orthosis to assist drop-foot gait,' IEEE Transaction on Neural Systems and Rehabilitation Engineering, vol. 12, no.1, p. 24-31, 2004 https://doi.org/10.1109/TNSRE.2003.823266
8. K. Kiguchi, K. Iwami, M. Yasuda, K. Watanabe, and T. Fukuda, 'An exoskeletal robot for human shoulder joint motion assist,' IEEE/ASME Transaction on Mechatronics, vol. 8, no. 1, p. 125-135, 2003 https://doi.org/10.1109/TMECH.2003.809168
9. J. Rosen, M. Brand, M. Fuchs and M. Arcan, 'A myosignal-based powered exoskeleton system,' IEEE Transaction on Systems, Man, and Cybernetics-Part A: System and Humans, vol. 31, no. 3, 2001 https://doi.org/10.1109/3468.925661
10. J. Rosen, M. Fuchs and M. Arcan, 'Performances of hill-type and neural network muscle models-toward a myosignal-based exoskeleton,' Computer and Biomedical Research, vol. 32, p. 415-439, 1999 https://doi.org/10.1006/cbmr.1999.1524
11. D. Winter, Biomechanics and Motor Control of Human Movement, A Wiley-Interscience Publication, 1990
12. S. Lee, Y. Sankai, 'The natural frequency-based power assist control for lower body with HAL-3,' International Conference on Intelligent Robots and Systems, p. 1642-1647, 2003 https://doi.org/10.1109/ICSMC.2003.1244648
13. E. Clancy and N. Hogan, 'Estimation of joint torque from the surface EMG,' Neuromuscular System, vol. 25, no. 4-4, 1991
14. Y. Nemoto, S, Egawa, A. Koseki, S. Hattori, T. Ishii, M. Fujie, 'Power-assisted walking support system for elderly,' Proceeding of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 20, no. 5, p. 2693-2695, 1998 https://doi.org/10.1109/IEMBS.1998.745229