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Neural Network Based Contact Force Control Algorithm for Walking Robots
1Department of Mechanical Engineering, KAIST, Daejeon 34141, Korea.
Sensors (Basel, Switzerland)
|January 7, 2021
Summary
This study introduces a novel neural network-based walking control algorithm. It accurately generates push-off forces for improved efficiency and disturbance rejection without needing a sensor.
Area of Science:
- Robotics
- Control Systems
- Artificial Intelligence
Background:
- Classical contact force control for walking robots requires precise models or sensors.
- Existing methods face limitations in efficiency and disturbance rejection.
Discussion:
- A novel neural network-based contact force control algorithm is proposed.
- The algorithm integrates with a linear quadratic regulator for position control and balance.
- It accurately generates force and reduces errors without external sensors.
Key Insights:
- The neural network model achieves high accuracy in force generation for walking robots.
- It significantly outperforms Jacobian-based calculations in force control accuracy.
- Simulations confirm the algorithm's robustness and rapid disturbance rejection capabilities.
Outlook:
- This approach offers a sensor-independent method for precise robotic locomotion.
- It paves the way for more efficient and stable legged robots.
- Further research can explore real-world implementation and complex terrains.
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