TY - GEN
T1 - Motion control of intelligent passive-type walker for fall-prevention function based on estimation of user state
AU - Hirata, Yasuhisa
AU - Muraki, Asami
AU - Kosuge, Kazuhiro
PY - 2006
Y1 - 2006
N2 - In this paper, we introduce a passive-type walker using servo brakes referred to as RT Walker. RT Walker realizes several functions such as obstacles/steps avoidance function, path following function, gravity compensation function, variable motion characteristics function, etc., by controlling only servo brakes without using servo motors. These passive-type systems are dependable for using practically in real world environment, because of the passive dynamics with respect to the applied force/moment, simple structure, lightweight, and so on. However, the most serious problem of them is the falling accident of user, because the passive-type systems are lightweight and move easily based on the small force/moment applied by the user unintentionally. In this paper, we pay attention to a method for estimating the human state during the usage of the walker and propose a motion control algorithm for realizing a fall-prevention function based on its human state. We also implement the proposed control methods in RT Walker experimentally and illustrate the validity of them.
AB - In this paper, we introduce a passive-type walker using servo brakes referred to as RT Walker. RT Walker realizes several functions such as obstacles/steps avoidance function, path following function, gravity compensation function, variable motion characteristics function, etc., by controlling only servo brakes without using servo motors. These passive-type systems are dependable for using practically in real world environment, because of the passive dynamics with respect to the applied force/moment, simple structure, lightweight, and so on. However, the most serious problem of them is the falling accident of user, because the passive-type systems are lightweight and move easily based on the small force/moment applied by the user unintentionally. In this paper, we pay attention to a method for estimating the human state during the usage of the walker and propose a motion control algorithm for realizing a fall-prevention function based on its human state. We also implement the proposed control methods in RT Walker experimentally and illustrate the validity of them.
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U2 - 10.1109/ROBOT.2006.1642236
DO - 10.1109/ROBOT.2006.1642236
M3 - Conference contribution
AN - SCOPUS:33845661594
SN - 0780395069
SN - 9780780395060
T3 - Proceedings - IEEE International Conference on Robotics and Automation
SP - 3498
EP - 3503
BT - Proceedings 2006 IEEE International Conference on Robotics and Automation, ICRA 2006
T2 - 2006 IEEE International Conference on Robotics and Automation, ICRA 2006
Y2 - 15 May 2006 through 19 May 2006
ER -