Title
Adaptive Estimation Of Human-Robot Interaction Force For Lower Limb Rehabilitation
Abstract
Human-robot interaction force information is of great significance for realizing safe, compliant and efficient rehabilitation training. In order to accurately estimate the interaction force during human-robot interaction, an adaptive method for estimation of human-robot interaction force is proposed in this paper. Firstly, the dynamics of human-robot system are modeled, which allows to establish a state space equation. Then, the interaction force is described by a polynomial function of time, and is introduced into the state space equation as a system state. Meanwhile, the Kalman filter is adopted to estimate the extended state of system online. Moreover, in order to deal with the uncertainty of system noise covariance matrix, sage-husa adaptive Kalman filter is used to correct the covariance matrices of system noises online. Finally, experiments were carried out on a lower limb rehabilitation robot, and the results show that the proposed method can precisely estimate the interaction force and also has good real-time performance.
Year
DOI
Venue
2019
10.1007/978-3-030-36808-1_59
NEURAL INFORMATION PROCESSING (ICONIP 2019), PT IV
Keywords
DocType
Volume
Human-robot interaction, State estimation, Rehabilitation robot, Interaction force estimation
Conference
1142
ISSN
Citations 
PageRank 
1865-0929
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Xu Liang12710.67
Weiqun Wang22512.73
Zeng-Guang Hou32293167.18
Shixin Ren403.38
Jiaxing Wang532.77
Weiguo Shi602.03
Tingting Su700.34