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    "headline": "The Cobot Practiced Stopping Before the Operator Asked",
    "slug": "the-cobot-practiced-stopping-before-the-operator-asked",
    "dek": "An open ROS 2 prototype combined hand tracking, fatigue logic and predictive positioning on a standard collaborative robot.",
    "summary": "An open ROS 2 prototype combined hand tracking, fatigue logic and predictive positioning on a standard collaborative robot.",
    "body_text": "A feasibility system on a Universal Robots UR3 combined hand-landmark recognition, a finite-state controller, gaze and fatigue logic, analytical motion control and half-second hand-position extrapolation. Its gesture classifier reached 99.62 percent on a held-out sample set, and the authors estimate a conservative worst-case gesture-to-motion latency near 830 milliseconds. Crucially, this was a single-operator demonstration, and a glasses hardware failure meant fatigue, gaze and stress pathways were checked with simulated triggers rather than organic pupil data. Multi-person physiological validation remains future work.",
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    "tags": [
      "robotics",
      "digital twins",
      "ergonomics",
      "ROS 2"
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      "title": "Frontiers in Robotics and AI: fatigue-aware human-robot collaboration",
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      "url": "https://doi.org/10.3389/frobt.2026.1897261",
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