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Strolling in Room-Scale VR: Hex-Core-MK1 Omnidirectional Treadmill.

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    This summary is machine-generated.

    This study introduces the Hex-Core-MK1 (HCMK1), a novel omnidirectional treadmill (ODT) for virtual reality (VR). The HCMK1 offers natural, full-degree-of-freedom walking in a compact space, overcoming limitations of current VR locomotion systems.

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    Area of Science:

    • Virtual Reality (VR) and Human-Computer Interaction (HCI)
    • Robotics and Mechanical Engineering
    • Biomechanics and Human Locomotion

    Background:

    • Natural locomotion interfaces are crucial for immersive VR experiences.
    • Existing omnidirectional treadmill (ODT) systems often struggle to balance immersive natural movement with minimal space occupation.
    • Household VR applications require solutions that are both engaging and practical for limited spaces.

    Purpose of the Study:

    • To present a novel omnidirectional treadmill (ODT) system, the Hex-Core-MK1 (HCMK1).
    • To demonstrate HCMK1's capability to provide natural, full-degree-of-freedom walking experiences within a minimized footprint.
    • To highlight HCMK1's advantages over existing ODT systems in terms of physical size, weight, latency, and dynamic performance.

    Main Methods:

    • Development of a novel ODT system, HCMK1, utilizing two types of mirror-symmetrical spiral rollers.
    • Implementation of these rollers to generate an omnidirectional velocity field for user locomotion.
    • Experimental evaluation of HCMK1's physical dimensions, weight, system latency, and dynamic performance metrics (acceleration and braking).

    Main Results:

    • HCMK1 achieves a compact design with an 8 cm height, significantly smaller than leading ODTs like Infinadeck and HCP.
    • The system is lightweight (110 kg) and boasts a low system latency of 9ms.
    • HCMK1 demonstrates high dynamic performance with a starting acceleration of 16.00 m/s² and braking acceleration of 30.00 m/s².

    Conclusions:

    • The HCMK1 system successfully addresses the dual requirements of natural immersive VR experiences and minimized space occupation.
    • Its compact size, low weight, and superior dynamic performance offer significant advantages over existing ODTs.
    • HCMK1's capabilities open new possibilities for expanded VR applications, including realistic terrain simulation.