Human-robot interaction detection: a wrist and base force/torque sensors approach

Robotica ◽  
2006 ◽  
Vol 24 (4) ◽  
pp. 419-427 ◽  
Author(s):  
Shujun Lu ◽  
Jae H. Chung ◽  
Stevens A. Velinsky

In this paper, a collision detection and identification method of a manipulator, using wrist and base force/torque sensors, is presented. An impact model is used to simulate the interaction between the manipulator and the human or environment. A neural network approach and a model based method are developed to detect the collision forces and disturbance torques on the joints of the manipulator. The experimental results illustrate the validity of the developed collision detection and identification scheme.

Author(s):  
I. Garcia ◽  
J.D. Martin-Guerrero ◽  
E. Soria-Olivas ◽  
R.J. Martinez ◽  
S. Rueda ◽  
...  

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6674
Author(s):  
Wookyong Kwon ◽  
Yongsik Jin ◽  
Sang Jun Lee

Human-robot interaction has received a lot of attention as collaborative robots became widely utilized in many industrial fields. Among techniques for human-robot interaction, collision identification is an indispensable element in collaborative robots to prevent fatal accidents. This paper proposes a deep learning method for identifying external collisions in 6-DoF articulated robots. The proposed method expands the idea of CollisionNet, which was previously proposed for collision detection, to identify the locations of external forces. The key contribution of this paper is uncertainty-aware knowledge distillation for improving the accuracy of a deep neural network. Sample-level uncertainties are estimated from a teacher network, and larger penalties are imposed for uncertain samples during the training of a student network. Experiments demonstrate that the proposed method is effective for improving the performance of collision identification.


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