提出无线人机协作系统稳定性分析框架,解决工业5.0中协同控制难题。
Wireless Human-Machine Collaboration in Industry 5.0
- 构建双无线回路模型,融合无线信道、人类操作延迟与控制动态
- 首次建立基于随机周期代价的稳定性条件,依赖信道统计与控制参数
- 验证于小车-平衡杆实验,适用于高可靠性人机协同场景
无线人机协作(WHMC)是工业5.0的关键进展,支持地理分布系统中人与机器的无缝交互。随着复杂协同控制任务的需求上升,系统稳定性对实际部署至关重要。稳定性分析可评估闭环系统在模型不确定性下的行为,尤其对无线通信系统必不可少。然而,由于无线通信的随机性、人类操作的动态性和控制系统的复杂性之间的相互作用,现有研究尚未解决WHMC系统的根本稳定性问题。本文建立了一个包含机器与人类控制双无线回路的WHMC基础模型,考虑短包传输、衰落信道和先进HARQ方案。将人类控制延迟建模为马尔可夫过程,以捕捉交互的随机特性。基于此模型,提出一种基于随机周期代价的方法,推导出以无线信道统计、人类动态和控制参数表示的稳定性条件。通过大量数值仿真和概念验证实验进行验证,开发并测试了新型无线协同小车-平衡杆控制系统。结果证实了该方法的有效性,并为未来更复杂环境中的WHMC研究提供了可靠框架。
原文摘要 · Abstract (English)
Wireless Human-Machine Collaboration (WHMC) represents a critical advancement for Industry 5.0, enabling seamless interaction between humans and machines across geographically distributed systems. As the WHMC systems become increasingly important for achieving complex collaborative control tasks, ensuring their stability is essential for practical deployment and long-term operation. Stability analysis certifies how the closed-loop system will behave under model randomness, which is essential for systems operating with wireless communications. However, the fundamental stability analysis of the WHMC systems remains an unexplored challenge due to the intricate interplay between the stochastic nature of wireless communications, dynamic human operations, and the inherent complexities of control system dynamics. This paper establishes a fundamental WHMC model incorporating dual wireless loops for machine and human control. Our framework accounts for practical factors such as short-packet transmissions, fading channels, and advanced HARQ schemes. We model human control lag as a Markov process, which is crucial for capturing the stochastic nature of human interactions. Building on this model, we propose a stochastic cycle-cost-based approach to derive a stability condition for the WHMC system, expressed in terms of wireless channel statistics, human dynamics, and control parameters. Our findings are validated through extensive numerical simulations and a proof-of-concept experiment, where we developed and tested a novel wireless collaborative cart-pole control system. The results confirm the effectiveness of our approach and provide a robust framework for future research on WHMC systems in more complex environments.
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