Abstract
In this paper, we propose an adaptive and simple neural control approach for a robot arm with soft/compliant materials, called GummiArm. The control approach is based on a minimal two-neuron oscillator network (acting as a central pattern generator) and an error-based dual integral learning (DIL) method for efficient rhythmic movement generation and frequency adaptation, respectively. By using this approach, we can precisely generate rhythmic motion for GummiArm and allow it to quickly adapt its motion to handle physical and environmental changes as well as interacting with a human safely. Experimental results for GummiArm in different scenarios (e.g., dealing with different joint stiffnesses, working against elastic loads, and interacting with a human) are provided to illustrate the effectiveness of the proposed adaptive neural control approach.
Keywords
- Adaptive robot behavior
- Soft robot
- Human-machine interaction
- Artificial intelligence
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References
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Acknowledgements
We thank Martin Stoelen to provide the technical details of GummiArm. This research was supported by Center for BioRobotics at the University of Southern Denmark and VISTEC-research funding on Bio-inspired Robotics.
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Degroote, F., Thor, M., Ignasov, J., Larsen, J.C., Motoasca, E., Manoonpong, P. (2020). Adaptive Neural Control for Efficient Rhythmic Movement Generation and Online Frequency Adaptation of a Compliant Robot Arm. In: Yang, H., Pasupa, K., Leung, A.CS., Kwok, J.T., Chan, J.H., King, I. (eds) Neural Information Processing. ICONIP 2020. Communications in Computer and Information Science, vol 1333. Springer, Cham. https://doi.org/10.1007/978-3-030-63823-8_79
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DOI: https://doi.org/10.1007/978-3-030-63823-8_79
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