MLM: アーム付き四足ロボットのマルチタスク全身移動操作制御の学習
MLM: Learning Multi-task Loco-Manipulation Whole-Body Control for Quadruped Robot with Arm
実世界とシミュレーションのデータを活用した強化学習フレームワークMLMを提案し、6自由度アーム付き四足ロボットが複数タスクの全身移動操作を自律的または遠隔操作で行えるようにした。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
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著者: Xin Liu, Bida Ma, Chenkun Qi, Yan Ding, Nuo Xu, Zhaxizhuoma, Guorong Zhang, Pengan Chen, Kehui Liu, Zhongjie Jia, Chuyue Guan, Yule Mo, Jiaqi Liu, Feng Gao, Jiangwei Zhong, Bin Zhao, Xuelong Li
分類: cs.RO
原文アブストラクト
Whole-body loco-manipulation for quadruped robots with arms remains a challenging problem, particularly in achieving multi-task control. To address this, we propose MLM, a reinforcement learning framework driven by both real-world and simulation data. It enables a six-DoF robotic arm-equipped quadruped robot to perform whole-body loco-manipulation for multiple tasks autonomously or under human teleoperation. To address the problem of balancing multiple tasks during the learning of loco-manipulation, we introduce a trajectory library with an adaptive, curriculum-based sampling mechanism. This approach allows the policy to efficiently leverage real-world collected trajectories for learning multi-task loco-manipulation. To address deployment scenarios with only historical observations and to enhance the performance of policy execution across tasks with different spatial ranges, we propose a Trajectory-Velocity Prediction policy network. It predicts unobservable future trajectories and velocities. By leveraging extensive simulation data and curriculum-based rewards, our controller achieves whole-body behaviors in simulation and zero-shot transfer to real-world deployment. Ablation studies in simulation verify the necessity and effectiveness of our approach, while real-world experiments on a Go2 robot with an Airbot robotic arm demonstrate the policy's good performance in multi-task execution.
