Engineers at the University of California, San Diego are using flexible machine technology to create lightweight data gloves that allow users to feel tactile feedback while interacting with the virtual environment. The research team recently announced their results in the journal Electronic Imaging.
The current VR user interface consists primarily of remote-controlled devices that provide basic vibration feedback when the user touches a virtual surface or object. Jurgen Schulze, a researcher and senior author of the Qualcomm Institute at the University of California, San Diego, said: "They are not real enough. When you press the button, you actually don't touch anything, or We don't feel any resistance. In contrast, we are trying to make users feel that they are in a real environment from a tactile perspective."
Other research teams and industry players are developing VR gloves, but most of them are made up of heavy materials (such as steel), so they are very cumbersome. Engineers at the University of California, San Diego, developed through a flexible exoskeleton that incorporates flexible artificial muscles to make gloves lighter and easier to use. Michael Tolley, a professor of mechanical engineering at the Jacobs School of Engineering at the University of California, San Diego, who is also a senior author of the paper, said: "This is the first prototype, but the results are surprising.
The system consists of three main components: a Leap Motion sensor for detecting the position and movement of the user's hand; a custom fluid control panel for controlling the movement of the glove; and an inflatable or deflated simulation of the user's encounter in the VR environment The resistance of the flexible robotic component.
A key factor in glove design is the flexible robotic component called Mckibben muscle (essentially a latex chamber covered by woven fibers). When the user moves the finger, the artificial muscle reacts like a spring, and the control panel controls the artificial muscle by inflation and deflation.
The researchers used 3D printing technology to create a mold that was used to make the flexible exoskeleton of the glove. They said that this approach would make the equipment easier to manufacture and mass produce. The researchers used silicone rubber as an exoskeleton and then placed it in the joint with a Velcro.
Engineers conducted an informal pilot study of 15 users, including two VR user interface experts. Everyone experienced playing the piano in VR, and they all said that the glove adds to the immersion of the experience and describes it as "fascinating" and "surprising."
The project is still in the prototype stage, and engineers are working to reduce the price of gloves, reduce the size of the equipment, and make it more portable. In addition, they also want to bypass the Leap Motion device to make the system more compact. Tori said: "Our ultimate goal is to create a device that can provide a richer experience in VR. But you can imagine this device being used for surgery and games, and other applications."
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