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arXiv 提交日期: 2026-04-30
📄 Abstract - RAY-TOLD: Ray-Based Latent Dynamics for Dense Dynamic Obstacle Avoidance with TDMPC

Dense, dynamic crowds pose a persistent challenge for autonomous mobile robots. Purely reactive planning methods, such as Model Predictive Path Integral (MPPI) control, often fail to escape local minima in complex scenarios due to their limited prediction horizon. To bridge this gap, we propose Ray-based Task-Oriented Latent Dynamics (RAY-TOLD), a hybrid control architecture that integrates obstacle information into latent dynamics and utilizes the robustness of physics-based MPPI with the long-horizon foresight of reinforcement learning. RAY-TOLD leverages a LiDAR-centric latent dynamics model to encode high-dimensional sensor data into a compact state representation, enabling the learning of a terminal value function and a policy prior. We introduce a policy mixture sampling strategy that augments the MPPI candidate population with trajectories derived from the learned policy, effectively guiding the planner towards the goal while maintaining kinematic feasibility. Extensive tests in a stochastic environment with high-density dynamic obstacles demonstrate that our method outperforms the MPPI baseline, reducing the collision rate. The results confirm that blending short-horizon physics-based rollouts with learned long-horizon intent significantly enhances navigation reliability and safety.

顶级标签: robotics reinforcement learning model training
详细标签: obstacle avoidance model predictive control latent dynamics lidar navigation 或 搜索:

RAY-TOLD:基于射线的潜在动力学用于密集动态障碍物规避与TDMPC / RAY-TOLD: Ray-Based Latent Dynamics for Dense Dynamic Obstacle Avoidance with TDMPC


1️⃣ 一句话总结

本文提出了一种混合控制架构RAY-TOLD,通过将激光雷达数据压缩为紧凑的状态表示,并结合短期物理模型预测与长期强化学习引导,使移动机器人在密集动态人群中更安全、可靠地导航,显著降低了碰撞率。

源自 arXiv: 2604.27450