arXiv:2512.00022cs.RO2025-12

用薛定谔桥生成任务驱动的机器人运动,更平滑、节能且快速。

XFlowMP: Task-Conditioned Motion Fields for Generative Robot Planning with Schrodinger Bridges

  • 以任务条件流匹配建模运动演化,融合起止状态与动态约束。
  • 在点质量与手写数据集上,最大均值差异降53.79%,能耗降39.88%。
  • 适用于真实机械臂,可快速生成无碰撞、高鲁棒性轨迹。

生成式机器人运动规划不仅需合成平滑无碰撞轨迹,还需在多样任务与动态约束下保持可行性。现有方法常难以融合高层语义与底层约束,尤其在任务配置与运动可控性之间的关联上存在短板。本文提出XFlowMP,一种任务条件生成运动规划器,将机器人轨迹演化建模为通过薛定谔桥连接随机噪声与专家示范的熵流。该方法利用薛定谔桥作为条件流匹配,结合评分函数学习高阶动力学运动场,同时编码起始-目标状态,实现无碰撞且动力学可行的轨迹生成。在RobotPointMass基准测试中,相比最优基线,最大均值差异降低53.79%,运动更平滑(下降36.36%),能耗减少39.88%,短时规划时间缩短11.72%;在LASA Handwriting长时轨迹数据集上,最大均值差异降低1.26%,运动更平滑(提升3.96%),能耗下降31.97%。进一步在Kinova Gen3机械臂上验证了其实用性,成功执行规划动作并确认其在真实场景中的鲁棒性。

原文摘要 · Abstract (English)

Generative robotic motion planning requires not only the synthesis of smooth and collision-free trajectories but also feasibility across diverse tasks and dynamic constraints. Prior planning methods, both traditional and generative, often struggle to incorporate high-level semantics with low-level constraints, especially the nexus between task configurations and motion controllability. In this work, we present XFlowMP, a task-conditioned generative motion planner that models robot trajectory evolution as entropic flows bridging stochastic noises and expert demonstrations via Schrodinger bridges given the inquiry task configuration. Specifically, our method leverages Schrodinger bridges as a conditional flow matching coupled with a score function to learn motion fields with high-order dynamics while encoding start-goal configurations, enabling the generation of collision-free and dynamically-feasible motions. Through evaluations, XFlowMP achieves up to 53.79% lower maximum mean discrepancy, 36.36% smoother motions, and 39.88% lower energy consumption while comparing to the next-best baseline on the RobotPointMass benchmark, and also reducing short-horizon planning time by 11.72%. On long-horizon motions in the LASA Handwriting dataset, our method maintains the trajectories with 1.26% lower maximum mean discrepancy, 3.96% smoother, and 31.97% lower energy. We further demonstrate the practicality of our method on the Kinova Gen3 manipulator, executing planning motions and confirming its robustness in real-world settings.

机器人规划生成模型薛定谔桥运动控制

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