一种通用安全防护方法,可跨机器人形态实现无碰撞操作。
Any-Body Guard: Universal Safeguarding for Manipulation Policies via Action Masking
- 在机器人配置空间直接推理,避免碰撞。
- 硬件实验零碰撞,任务性能损失小于现有方法。
- 无需额外数据或工程适配,适合多形态机器人使用。
确保学习型机器人在多种形态和任务下的安全性仍需大量人工设计。现有方法通常依赖启发式备用控制器或复杂的前向不变性评估,这些方法往往过于保守影响任务成功率,计算成本高难以实时执行,或过于依赖人工设计而无法跨场景迁移。本文提出一种通用安全防护方法 X-Safe,直接在机器人的配置空间中推理,提供形式化的概率碰撞规避保证。该方法仅依赖基于物体的准静态场景表示和机械臂的正向运动学模型,可在不同机器人形态间自由迁移。X-Safe 不需要额外数据或针对不同形态/场景的工程适配,即可提供有效的形式化安全保证。我们在仿真与真实硬件上对多种机器人形态和策略进行了验证,结果表明其任务性能退化小于现有先进方法,硬件实验中未发生任何碰撞,并实证支持了其形式化保证。
原文摘要 · Abstract (English)
Ensuring safety of learning-enabled robotic manipulation across diverse embodiments and tasks still requires significant manual engineering. Existing approaches typically rely on heuristically designed fallback controllers or complex forward invariance assessments. These methods are often too conservative for task success, too computationally expensive for real-time execution, too heuristic to provide useful safety guarantees, or too engineering-heavy to transfer between setups. In this paper, we propose a universal safeguarding approach, X-Safe, which reasons directly in the robot's configuration space to provide formal probabilistic guarantees for collision avoidance. By operating in the configuration space, our method transfers across embodiments while relying solely on an object-based, quasi-static scene representation and a forward kinematics model of the robotic manipulator. Thus, X-Safe provides useful formal safety guarantees without requiring additional data, or engineering effort for different embodiments or scenes. We demonstrate X-Safe for diverse embodiments and policies, both in simulation and on hardware. We observe less degradation in task performance compared to state-of-the-art safeguarding, no collisions on hardware experiments, and empirically corroborate our formal guarantees.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。