Applications of neural networks for coordinate transformations in robotics |
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Authors: | J F Gardner A Brandt G Luecke |
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Affiliation: | (1) Department of Mechanical Engineering, The Pennsylvania State University, 16802 University Park, PA, USA |
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Abstract: | The use of artificial neural networks is investigated for application to trajectory control problems in robotics. The relative merits of position versus velocity control is considered and a control scheme is proposed in which neural networks are used as static maps (trained off-line) to compute the inverse of the manipulator Jacobian matrix. A proof of the stability of this approach is offered, assuming bounded errors in the static map. A representative two-link robot is investigated using an artificial neural network which has been trained to compute the components of the inverse of the Jacobian matrix. The controller is implemented in the laboratory and its performance compared to a similar controller with the analytical inverse Jacobian matrix. |
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Keywords: | Neural networks trajectory control |
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