arXiv:2511.14433cs.LOcs.RO2025-11被引 2

为核环境机器人设计可验证安全架构,确保自主运行时的安全性。

Safe-ROS: An Architecture for Autonomous Robots in Safety-Critical Domains

  • 分离智能控制与安全系统,安全模块独立执行形式化验证
  • 通过认知代理实现障碍物近距离预警并自动停机,满足安全要求
  • 已在模拟与实验室测试中验证,适合高监管领域如核能应用

在安全关键领域部署自主机器人需兼顾操作效能与安全合规。本文提出Safe-ROS架构,用于开发可靠且可验证的自主机器人。该架构包含两个子系统:(1) 负责日常操作的智能控制系统;(2) 由安全仪表功能(SIFs)组成的独立安全系统,提供形式化可验证的监督。我们在AgileX Scout Mini机器人上验证Safe-ROS,使其在核环境中执行自主巡检。选取一项安全需求并实例化为一个SIF。为支持验证,将SIF实现为认知代理,当检测到机器人距离障碍物过近时立即停止运行。我们验证了该代理满足安全要求,并将其集成至自主巡检系统中。整个集成经验证后,在Gazebo仿真和实验室测试中完成部署验证。评估基于英国核能领域的实际需求,成功标准包括从安全要求生成形式属性、SIF的实现与验证,以及其与机器人系统的集成。结果表明,Safe-ROS能在安全关键场景下提供可验证的安全监督,构成一个可扩展至更多需求与应用的稳健框架。

原文摘要 · Abstract (English)

Deploying autonomous robots in safety-critical domains requires architectures that ensure operational effectiveness and safety compliance. In this paper, we contribute the Safe-ROS architecture for developing reliable and verifiable autonomous robots in such domains. It features two distinct subsystems: (1) an intelligent control system that is responsible for normal/routine operations, and (2) a Safety System consisting of Safety Instrumented Functions (SIFs) that provide formally verifiable independent oversight. We demonstrate Safe-ROS on an AgileX Scout Mini robot performing autonomous inspection in a nuclear environment. One safety requirement is selected and instantiated as a SIF. To support verification, we implement the SIF as a cognitive agent, programmed to stop the robot whenever it detects that it is too close to an obstacle. We verify that the agent meets the safety requirement and integrate it into the autonomous inspection. This integration is also verified, and the full deployment is validated in a Gazebo simulation, and lab testing. We evaluate this architecture in the context of the UK nuclear sector, where safety and regulation are crucial aspects of deployment. Success criteria include the development of a formal property from the safety requirement, implementation, and verification of the SIF, and the integration of the SIF into the operational robotic autonomous system. Our results demonstrate that the Safe-ROS architecture can provide safety verifiable oversight while deploying autonomous robots in safety-critical domains, offering a robust framework that can be extended to additional requirements and various applications.

机器人安全形式验证核能应用

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