A Full Body Steerable Wind Display for a Locomotion Interface
A Full Body Steerable Wind Display for a Locomotion Interface
复制标题
用于运动界面的全身可操纵风显示器
DOI：
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发表时间：
2015
影响因子：
5.2
通讯作者：
J. Hollerbach
中科院分区：
文献类型：
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作者：
Sandip D. Kulkarni;Charles Fisher;Price Lefler;A. Desai;S. Chakravarthy;E. Pardyjak;M. Minor;J. Hollerbach
本文介绍了 Treadport 主动风洞 (TPAWT)，这是一种用于 Treadport 运动界面的全身沉浸式虚拟环境，旨在以高达 20 kph 的速度从任何正面方向向用户产生风。目标是模拟在室外虚拟环境中行走时的真实风体验。通过添加大型风扇、管道和围墙，在现有的 Treadport 安装周围创建了一个循环式风洞。采用非侵入式设计的两片空气沿着背投 CAVE 式视觉显示器的侧屏幕流动，它们在前屏幕上碰撞并混合，以全身横截面重新导向用户。通过改变空气片的流动条件，可以控制用户处的风向和风速。克服了在现有设施中安装风洞以及管理湍流以实现稳定和可操纵流动的设计挑战。通过实验证明了风速和风向控制器的性能。
This paper presents the Treadport Active Wind Tunnel (TPAWT)-a full-body immersive virtual environment for the Treadport locomotion interface designed for generating wind on a user from any frontal direction at speeds up to 20 kph. The goal is to simulate the experience of realistic wind while walking in an outdoor virtual environment. A recirculating-type wind tunnel was created around the pre-existing Treadport installation by adding a large fan, ducting, and enclosure walls. Two sheets of air in a non-intrusive design flow along the side screens of the back-projection CAVE-like visual display, where they impinge and mix at the front screen to redirect towards the user in a full-body cross-section. By varying the flow conditions of the air sheets, the direction and speed of wind at the user are controlled. Design challenges to fit the wind tunnel in the pre-existing facility, and to manage turbulence to achieve stable and steerable flow, were overcome. The controller performance for wind speed and direction is demonstrated experimentally.