RobKiNet: Robotic Kinematics Informed Neural Network for Optimal Robot Configuration Prediction

• URL: http://arxiv.org/abs/2402.16281v2
• Date: Tue, 04 Mar 2025 07:06:42 GMT
• Title: RobKiNet: Robotic Kinematics Informed Neural Network for Optimal Robot Configuration Prediction
• Authors: Yanlong Peng, Zhigang Wang, Yisheng Zhang, Pengxu Chang, Ziwen He, Kai Gu, Hongshen Zhang, Ming Chen,
• Abstract summary: Task and Motion Planning (TAMP) is essential for robots to interact with the world and accomplish complex tasks.<n>We propose a framework called the Robotic Kinematics Informed Neural Network (RobKiNet) as a bridge between task and motion layers.<n>RobKiNet integrates kinematic knowledge into neural networks to train models capable of efficient configuration prediction.
• Score: 5.570224095327175
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Task and Motion Planning (TAMP) is essential for robots to interact with the world and accomplish complex tasks. The TAMP problem involves a critical gap: exploring the robot's configuration parameters (such as chassis position and robotic arm joint angles) within continuous space to ensure that task-level global constraints are met while also enhancing the efficiency of subsequent motion planning. Existing methods still have significant room for improvement in terms of efficiency. Recognizing that robot kinematics is a key factor in motion planning, we propose a framework called the Robotic Kinematics Informed Neural Network (RobKiNet) as a bridge between task and motion layers. RobKiNet integrates kinematic knowledge into neural networks to train models capable of efficient configuration prediction. We designed a Chassis Motion Predictor(CMP) and a Full Motion Predictor(FMP) using RobKiNet, which employed two entirely different sets of forward and inverse kinematics constraints to achieve loosely coupled control and whole-body control, respectively. Experiments demonstrate that CMP and FMP can predict configuration parameters with 96.67% and 98% accuracy, respectively. That means that the corresponding motion planning can achieve a speedup of 24.24x and 153x compared to random sampling. Furthermore, RobKiNet demonstrates remarkable data efficiency. CMP only requires 1/71 and FMP only requires 1/15052 of the training data for the same prediction accuracy compared to other deep learning methods. These results demonstrate the great potential of RoboKiNet in robot applications.

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