A Magneto-Inductive Sensor Based Wireless Tongue-Computer Interface
| Autor: | Jia Wang, Maysam Ghovanloo, Xueliang Huo |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Adult
Male Engineering Headset Interface (computing) Transducers Biomedical Engineering Article User-Computer Interface Wheelchair Tongue Task Performance and Analysis Internal Medicine Humans Telemetry Wireless Inductive sensor Computer Peripherals business.industry General Neuroscience Track (disk drive) Rehabilitation Electrical engineering Equipment Design Portable computer Equipment Failure Analysis Touch Female Electronics business Wireless sensor network |
| Zdroj: | IEEE Transactions on Neural Systems and Rehabilitation Engineering. 16:497-504 |
| ISSN: | 1558-0210 1534-4320 |
| DOI: | 10.1109/tnsre.2008.2003375 |
| Popis: | We have developed a noninvasive, unobtrusive magnetic wireless tongue-computer interface, called "Tongue Drive," to provide people with severe disabilities with flexible and effective computer access and environment control. A small permanent magnet secured on the tongue by implantation, piercing, or tissue adhesives, is utilized as a tracer to track the tongue movements. The magnetic field variations inside and around the mouth due to the tongue movements are detected by a pair of three-axial linear magneto-inductive sensor modules mounted bilaterally on a headset near the user's cheeks. After being wirelessly transmitted to a portable computer, the sensor output signals are processed by a differential field cancellation algorithm to eliminate the external magnetic field interference, and translated into user control commands, which could then be used to access a desktop computer, maneuver a powered wheelchair, or control other devices in the user's environment. The system has been successfully tested on six able-bodied subjects for computer access by defining six individual commands to resemble mouse functions. Results show that the Tongue Drive system response time for 87% correctly completed commands is 0.8 s, which yields to an information transfer rate of approximately 130 b/min. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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