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A Haptic Shared-Control Architecture for Guided Multi-Target Robotic Grasping.

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    This study introduces a new haptic shared-control system to improve robotic telemanipulation for nuclear waste decommissioning. The system enhances object sorting and segregation, significantly reducing task completion time and improving operator effectiveness.

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    Area of Science:

    • Robotics
    • Human-Computer Interaction
    • Nuclear Engineering

    Background:

    • Robotic telemanipulation is crucial for the nuclear industry, particularly for decommissioning legacy radioactive waste.
    • Current solutions, primarily mechanically linked master-slave manipulators, have seen limited advancement.
    • There is a critical need for advanced robotic systems to accelerate waste management operations.

    Purpose of the Study:

    • To present a novel haptic shared-control approach for assisting human operators in object sorting and segregation tasks.
    • To enhance the efficiency and effectiveness of remote handling in cluttered and unknown environments.
    • To reduce the time and improve the precision of decommissioning tasks.

    Main Methods:

    • Utilized 3D scanning to identify potential grasp candidates on objects.
    • Generated smooth and continuous guiding haptic cues for operator assistance.
    • Implemented a shared-control system integrating human input with robotic guidance.
    • Conducted human-subject studies with 15 participants to validate the approach.

    Main Results:

    • Demonstrated an average improvement of 20.8% in task completion time.
    • Achieved a 20.1% reduction in linear trajectory, indicating increased precision.
    • Reported a 32.5% increase in perceived effectiveness by the operators.
    • Validated the system's ability to provide smooth transitions between tasks and objects.

    Conclusions:

    • The proposed haptic shared-control approach significantly outperforms standard teleoperation for nuclear waste handling tasks.
    • This technology offers a promising solution for accelerating the decommissioning of legacy radioactive waste.
    • The system enhances operator performance through intuitive haptic guidance, improving efficiency and safety.