FlashNav: 20秒以内の超高速ロボットナビゲーションポリシー訓練
FlashNav: Ultra-Fast Policy Training for Robot Navigation within 20 Seconds
GPU中心のフレームワークで、レンジベースのロボットナビゲーションの強化学習ポリシーを20秒未満で訓練できることを示した論文。シミュレーションをナビゲーションMDPに合わせて簡略化し、GPU上で並列遷移を生成することで高速化を実現。
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著者: Shanze Wang, Yiwei Qian, Xinming Zhang, Jun Xue, Siwei Cheng, Xianghui Wang, Qingyuan Hu, Xiaoyu Shen, Wei Zhang
分類: cs.RO
原文アブストラクト
Deep reinforcement learning has shown strong potential for robot navigation, but its practical deployment is still limited by the long wall-clock cost of policy training. This paper presents FlashNav, a GPU-first framework for ultra-fast range-based robot navigation training. To the best of our knowledge, FlashNav is the first DRL-based robot navigation framework that reaches seconds-level policy training, with the fastest deployable policy trained in less than 20 seconds. The key idea is to align simulation with the navigation MDP: FlashNav preserves the essential components for velocity-level navigation, including occupancy geometry, range sensing, goal-conditioned control, robot motion dynamics, collision handling, termination, and reset, while removing unnecessary rendering and high-fidelity physical details from the training loop. Built on a batched bitmap simulator and a fully GPU-resident training pipeline with our FastDSAC learner, FlashNav generates massive parallel navigation transitions entirely on GPU. Experiments on TurtleBot2 and Unitree Go2 show that FlashNav achieves a 100\% success-rate below 20 seconds on an RTX 5090 and remains within tens of seconds across desktop GPUs. The learned policies further transfer to physical wheeled and legged robots in static and dynamic indoor scenes, demonstrating that DRL-based navigation can be trained at seconds-level speed while preserving deployable obstacle-avoidance behavior.
