The retainer was turned into a controlled language interface

German engineers have developed a simple input device, a managed language. It works like a orthodontic retainer, mounted on the sky and top row of teeth, and contains a small ball that can move tongue back and forth. The position of the ball measures and reports on the computer or other device small Board fixed on to the ear. This method of control is useful to people with impaired motor functions or during sessions, during which both hands are busy, says the main author of the work on your website.

A large part of the common interfaces — keyboard, mouse, touch screen and other — used to enter information hands. This intuitive control method, but as we use hands as the primary way of interacting with the world, while working with such interfaces, these are limited. The most common analogue input with hands is voice input, but studies showthat most people feel uncomfortable to use it in public places, and in addition, while voice assistants do not always recognize it correctly, especially names and difficult words. Moreover, voice input is not suitable for real-time control.

Dorothy Clasen (Dorothee Clasen) and her colleagues from the Cologne international school of design created a prototype device that uses a silent control command, and thus leaves the hands free. Instead, as the body of control engineers involved language.

The heart of this device is a Board with a ball that can move tongue back and forth. Above it there are three reed sensors that change the magnetic field can calculate the distance of the ball and thereby track its movement.

The device must be convenient and safe to use, the engineers have placed the cost of sensors in the self-made removable retainer made of transparent polymer, which is worn on the upper row of teeth adjacent to the palate. Retainer away from the insulated wires to the Board, which is fastened behind the ear. It reads the position sensor and transmits them via Wi-Fi on any managed device.

The authors showed the possibility of its development by creating a simple table tennis simulator. In the video you can see that the device allows to control the position of the paddle using the language. The developers suggest that in the first place, the device can be helpful to people with severe motor disorders, unable to use hand control.

Earlier, the engineers have offered other alternative ways of controlling devices. For example, the developers at MIT have created a headset that is attached to the neck and reads silent speech muscle activity. And the engineer from the UK have developed a prototype of the sixth finger, which is controlled by pressing down on the sensors in the Shoe.

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