The Virtual Reality (VR) training is one of modern simulation tools which has been used to help train up staffs to operate equipment and facilities, as well as handling emergency situations in different industries. This paper discusses the theories supporting the adoption of VR technologies in the laboratories and pros/cons of Virtual Reality Training systems. Virtual reality technologies have been applied to different types of trainings in many industries, such as product design and manufacturing, facilities maintenances and territory teaching purposes. A typical virtual reality system includes four basic elements: 1) Input devices in order to simulate the working behavior; 2) Output devices; such as VR headset to allow the user in the virtual environment; 3) graphical system that produce simulated scenario(s); 4) Database to store the different conditions to simulate the operation environment.
Virtual reality (VR) headset has been increasingly applied in various activities with longer wearing time, such as gaming or training. Users no longer stay in a static state but are more likely to perform a series of body movements. This paper focuses on the dynamic thermal comfort of head mounted displays (HMDs) to explore the VR experience in state of motion. Eight participants wore three types of HMDs to conduct thermal comfort tests while doing light exercises. Thermal comfort was quantified by subjective rating and miniature data logger measurement. The results showed that wearing HMDs in motion caused more subjective thermal discomfort than in rest. Low airtightness of HMDs led to a lower increase in temperature and humidity inside the device in motion, yet it would also reduce the immersiveness of the VR experience due to light leakage. Furthermore, there was no significant difference in the subjective discomfort level of the three types of devices. In order to improve the overall user experience, the development of HMDs should consider design tradeoffs in terms of materials, shape, finishing etc., maximizing user comfort while ensuring optimal audiovisual display effect.
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