Portable System for Alternative Communication
L. A. Liegel, Guilherme N. Nogueira, Percy Nohama · 2019
This paper presents an alternative computer access communication tool for cerebral palsy people with preserved cognitive ability. The device consists of a portable computerized system containing a special keyboard activated manually by means of mechanical keys or remotely via infrared signal by head movement. An infrared signal emitter module is attached externally to the user's forehead in a cap-type holder. Tests indicated that a receiver could be operated at a maximum distance of 40 cm, with an angulation of up to 15°. The device has quality features, short response time, ease of use, and it is easily transported.