Motion Display in the Treadport Locomotion Interface

hollerbach，犹他大学$75,000 - $ 12。运动接口中的运动显示运动接口代表了一个新的领域，在这个早期阶段，关于最佳方法有许多不确定因素。这项探索性研究关注的是斜坡、惯性和转动的机械显示，这是一个基于跑步机的运动界面，Sarcos Treadport。Sarcos Treadport包括一个线性倾斜跑步机、一个主动机械系绳和一个类似cave的视觉显示器。主动机械系绳，这是Treadport的独特之处，测量用户位置并向用户施加轴向力。虽然跑步机是一个线性装置，但研究的目的是表明，与视觉显示耦合的系绳为转向控制提供了合理的依据。主动系绳的产力能力提供了在运行过程中模拟惯性力的独特能力，否则由于用户是静止的，就无法模拟惯性力。跑步机倾斜机制通常太慢，无法显示快速的坡度变化。通过拉动用户模拟上坡行走，推动用户模拟下坡行走，主动机械系绳可以模拟重力。pi建议进行一系列生物力学、建模和心理物理学研究，以证明使用主动机械系绳的拟议运动显示，惯性力和坡度。目的是表明在线性跑步机上添加机械系绳是一种有用且合理的运动界面方法，并且所提出的运动显示方法具有一定的科学依据，并且从用户的角度来看是有效的。

Abstract IIS-9908675Hollerbach, JohnUniversity of Utah$75,000 - 12 mos.Motion Display in the Treadport Locomotion InterfaceLocomotion interfaces represent a new field, and at this early stagethere are many uncertainties about the best approaches. This exploratoryresearch is concerned with the mechanical display of slope,inertia, and turning on a treadmill-based locomotion interface, the Sarcos Treadport. The Sarcos Treadport comprises a linear tilting treadmill, an active mechanical tether, and a CAVE-like visual display. The active mechanical tether, which is the unique aspect of the Treadport,measures user position and applies axial forces to the user.Although the treadmill is a linear device, the research aims to show that thetether coupled to the visual display provides a reasonable basis forturning control. The force-producing capability of the active tetheroffers the unique ability to simulate inertial forces during running,which are otherwise absent because the user is stationary. Treadmilltilt mechanisms are typically too slow to display rapid slope changes.By pulling on the user to simulate uphill walking and pushing fordownhill walking, the active mechanical tether can simulate gravity.The PIs propose to conduct a series of biomechanical, modeling, andpsychophysical studies to demonstrate the proposed motion displays forturning, inertial force, and slope using an active mechanical tether.The objective is to show that adding a mechanical tether to linear treadmills is a useful and reasonable approach towards locomotion interfaces, and that the proposed locomotion display approaches have some scientific basis and are effective from a user standpoint.