为火星科学直升机设计可自适应的混合自主系统,提升深空探索安全性与效率。
Hybrid Autonomy Framework for a Future Mars Science Helicopter
- 用有限状态机与行为树融合构建高层控制框架。
- 仿真与实地测试验证其对实时反馈的响应能力。
- 适合复杂太空任务,支持多种机器人系统集成。
自主飞行器如NASA的Ingenuity已能拓展地面机器人无法抵达的行星表面探测范围。因此,NASA正研究火星科学直升机(MSH)这一先进概念,具备长距离科学任务执行能力和在复杂火星地形中自主导航的能力。由于地球与火星间通信延迟显著且任务复杂,需具备高级自主性框架,能在无须人工干预的情况下,持续根据任务目标和实时条件调整行为。本文提出一种确定性的高层控制框架,将有限状态机(FSM)与行为树(BTs)结合,实现可扩展、鲁棒且计算高效的自主解决方案,适用于深空探索等关键场景。论文阐述了可能的MSH核心能力,并详述了FSM-BT混合自主框架如何协调这些能力以达成目标。蒙特卡洛仿真与真实野外测试验证了该框架的鲁棒性与适应性,能够对离散事件和实时系统反馈触发状态转移或动态调整行为执行,实现反应式与上下文感知的响应。该框架不依赖特定中间件,兼容F-Prime等系统,可扩展至空中机器人以外的应用。
原文摘要 · Abstract (English)
Autonomous aerial vehicles, such as NASA's Ingenuity, enable rapid planetary surface exploration beyond the reach of ground-based robots. Thus, NASA is studying a Mars Science Helicopter (MSH), an advanced concept capable of performing long-range science missions and autonomously navigating challenging Martian terrain. Given significant Earth-Mars communication delays and mission complexity, an advanced autonomy framework is required to ensure safe and efficient operation by continuously adapting behavior based on mission objectives and real-time conditions, without human intervention. This study presents a deterministic high-level control framework for aerial exploration, integrating a Finite State Machine (FSM) with Behavior Trees (BTs) to achieve a scalable, robust, and computationally efficient autonomy solution for critical scenarios like deep space exploration. In this paper we outline key capabilities of a possible MSH and detail the FSM-BT hybrid autonomy framework which orchestrates them to achieve the desired objectives. Monte Carlo simulations and real field tests validate the framework, demonstrating its robustness and adaptability to both discrete events and real-time system feedback. These inputs trigger state transitions or dynamically adjust behavior execution, enabling reactive and context-aware responses. The framework is middleware-agnostic, supporting integration with systems like F-Prime and extending beyond aerial robotics.
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