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为了帮助航天员掌握在失重环境下依赖视觉信息进行舱内导航的技能,提出2种训练方法并探讨其优劣.首先利用虚拟现实技术建立了空间站模型,模拟航天员以不同身体姿态漫游时获取的视觉反馈,设计了强调舱段视觉正向的局部正向法和注重空间站视觉正向的整体正向法,并开展实验探究;然后通过数据分析得出文中方法对导航任务绩效存在显著影响,其中局部正向法能够强化地标和路线知识;而整体正向法有利于建立完整的空间认知地图,并且适合于低能见度条件下的应急撤离训练.
In order to help astronauts master the skills of in-cabin navigation relying on visual information in a weightless environment, two training methods are proposed and their advantages and disadvantages are discussed.Firstly, the space station model is established by using virtual reality technology to simulate the astronauts acquiring in different body posture Visual feedback, a local forward method that emphasizes cabin vision positive direction and a holistic forward method that emphasizes visual positive direction of space station are designed and carried out. And then the data analysis shows that the method in this paper has a significant impact on navigation mission performance, Among them, the local forward method can strengthen the landmark and route knowledge; while the global forward method is helpful to establish a complete spatial cognitive map and is suitable for the emergency evacuation training under low visibility conditions.