Zhou Qian-xiang, Jiang Guo-hua, Qu Zhan-sheng, Zhu Yan-jun
Institute of Space Medico-Engineering, Beijing, China.
Space Med Med Eng (Beijing). 2004 Feb;17(1):35-8.
To study factuality of ergonomic experimental data from subjects performing virtual environment wearing head mounted display (HMD) and data gloves, so as to improve the reliability of the application of virtual reality in manned spaceflight (e.g. human-machine interface design scheme ergonomic evaluation, and virtual training).
Experiment in a virtual module is designed and implemented on the virtual reality ergonomic experimental system. First, pre-experiments are done to determine the different levels of objects to be operated and the height of a virtual table which is in the virtual module. On the basis of the pre-experiments, the formal experiments are completed. In addition, a virtual reality questionnaire (VRQ) is developed and employed in order to assess subjective impressions of the virtual environment.
Normal distribution of performing time is shown when a virtual sphere is put into a drawer of standard cabinet of virtual module on a front table by subjects wearing HMD, its mean value being 36.72 s and variance being 13.798 s. By VRQ analysis, about 70.2% of the subjects thought that HMD has a good stereo quality, they can be immersed in the virtual module.
When virtual reality is applied in ergonomic evaluation or virtual training, the HMD and data glove of the system would satisfy the requirements of human-computer interaction, so that human performance can be analogized and corresponding truth of experimental result can be achieved.
研究受试者佩戴头戴式显示器（HMD）和数据手套在虚拟环境中操作时人体工程学实验数据的真实性，以提高虚拟现实在载人航天中的应用可靠性（如人机界面设计方案的人体工程学评估、虚拟训练等）。
在虚拟现实人体工程学实验系统上设计并实现虚拟模块中的实验。首先进行预实验，确定虚拟模块中待操作物体的不同水平以及虚拟桌子的高度。在预实验的基础上完成正式实验。此外，编制并采用虚拟现实问卷（VRQ）来评估对虚拟环境的主观感受。
佩戴HMD的受试者将虚拟球体放入虚拟模块前台上标准柜子的抽屉时，操作时间呈正态分布，其平均值为36.72秒，方差为13.798秒。通过VRQ分析，约70.2%的受试者认为HMD具有良好的立体效果，能沉浸在虚拟模块中。
当虚拟现实应用于人体工程学评估或虚拟训练时，系统的HMD和数据手套能满足人机交互要求，从而可模拟人的操作行为并获得相应的实验结果真实性。
