Dr. Yu Xinge, assistant professor of Biomedical Engineering Department of City University of Hong Kong, Dr. Xie Zhaoqian, senior researcher and their team, cooperated with the team of Northwest University and several research institutions and companies in the United States and Mainland China to develop a set of skin integrated VR system. The system can receive instructions wirelessly, and then simulate the “touch” through vibration to overcome the shortcomings mentioned above. The user can feel the “touch” by easily sticking a piece of soft and thin device like cloth on the skin.

It is reported that VR / AR technology mainly creates experience through visual and auditory stimuli. However, compared with eyes and ears, skin is the sensory system with the largest area of human body. Therefore, the effect of sensing the external environment through touch is better. With its ingenious design using structural mechanics, this innovative skin integrated VR device is composed of hundreds of functional components, including actuators that simulate the touch with millimeter mechanical vibration. These flexible skin devices are housed in a thin layer of synthetic rubber covered with silica gel with a thickness of only 3 mm. The device is not only breathable and reusable, but also bending and even twisting do not damage its function.

Yu Xinge said: “conventional actuators that provide tactile vibration need about 100 MW of power to transmit information, but we use radio frequency technology (RF) to supply power. We only need less than 2 MW of power to transmit information and produce the same mechanical vibration, which solves the problem of wireless low power consumption energy transmission and significantly improves the operating distance of this system.” it is understood that, The research results can not only be applied to social media and video games, but also help prosthetic users sense the external environment through touch, provide feedback, and even expand to relevant virtual scenes of clinical medical applications.

     

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