Wireality (VR tactile device)

2020: Device Release

At the end of April 2020, a Carnegie Mellon University team released a VR system that allows users to feel large obstacles, creating a sense of resistance when contacting objects. Researchers managed to attract investors for the serial production of the device, which has already begun to be delivered to the first buyers.

A system called Wireality creates tactile sensations thanks to a system of nylon-coated steel strings that connect the fingertips, palm and wrist with a spring mechanism on the shoulder. This mechanism can pinch or loosen the steel string for 30-40 milliseconds, which provides a sense of object resistance in VR. As soon as the user breaks his hand from the virtual reality object and the strings sag, the sensation disappears.

A device for transmitting tactile sensations in virtual reality went on sale

This approach is fundamentally different from other techniques that mimic thin textures or rubber, soft objects. The simulated resistance of one string is 80 grams, a fully mounted prototype can provide resistance up to 560 grams. The maximum length of the strings is 83 centimeters. The shoulder mechanism weighs 273 grams, the overlays on the fingers are about 11 grams.

The developers claim that with large production, the device can cost about $50, possibly even $35. Synchronization between what the user feels and sees is achieved using the Leap Motion computer vision system. The peripheral device consumes only 0.024 mWh at one touch, so it is possible to operate from a mobile battery.

According to the developers, Wireality allows the user to feel the railing at hand or the surface of a not very complex object. When trying to grab smaller objects, it can happen that the wires will touch the fingers, and this will prevent complete immersion in the VR. Therefore, Wireality is more suitable for large objects. Since the whole system is forward oriented, it can simulate tactile sensations only for those objects that are in front of the user.^[1]

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