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Neural Network-Based Joint Velocity Estimation Method for Improving Robot Control Performance

delete2023-01-01
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OA
AI
D
Dongwhan Kim
S
Soonwook Hwang
M
Myo Taeg Lim
Y
Yonghwan Oh
Y
Yisoo Lee *
DOI:10.1109/ACCESS.2023.3333388delete
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摘要

摘要

En 中文
Joint velocity estimation is one of the essential properties that implement for accurate robot motion control. Although conventional approaches such as numerical differentiation of position measurements and model-based observers exhibit feasible performance for velocity estimation, instability can be occurred because of phase lag or model inaccuracy. This study proposes a model-free approach that can estimate the velocity with less phase lag by batch training of a neural network with pre-collected encoder measurements. By learning a weighted moving average, the proposed method successfully estimates the velocity with less latency imposed by the noise attenuation compared to the conventional methods. Practical experiments with two robot platforms with high degrees of freedom are conducted to validate the effectiveness of the proposed method.
Keyword:
Robots
Actuators
Observers
Computational modeling
Mathematical models
Low-pass filters
Robot control
Neural networks
Machine learning
State estimation
Velocity control
Robotics
robot control
neural network
machine learning
state estimation

期刊

IEEE Access 封面图
IEEE Access
IF:
3.6
论文数:
9.8W
被引数:
29.4W

机构

K
Korea University
学者数:
3.6W
论文数: 3.8W
被引数: 4.4W
S
Samsung Electronics
学者数:
3.0K
论文数: 2.0K
被引数: 21
K
korea institute of science & technology (kist)
学者数:
1.2W
论文数: 1.3W
被引数: 23
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