The purpose of this paper is to review work at the Georgia Institute of Technology that uses magnetic sensor arrays to construct assistive technology systems for disabled people.
The innovative Tongue Drive system is described, along with its advantages over other mouth‐based control devices. The results of practical tests on able‐bodied volunteers are reported. Finally, there is a review of other related projects by the same researchers.
Magnetic field sensors, wireless communications and feature extraction algorithms take advantage of the dexterity of the tongue to form an unobtrusive and non‐invasive control system with a large set of commands. Novice users achieved an information transfer rate of about 150 bits/min.
This paper displays the ingenuity and effectiveness of systems built on magnetic sensor arrays.
