Tactile Interface for Electric Wheelchair
Résumé
In the framework of an augmented multimodal electric wheelchair for people with multiple disabilities, we propose a new user interface based on an Android application on a tablet to steer the wheelchair. The proposed system aims at overcoming some of the problems encountered with the traditional joystick interface like the involuntary arm extensions due to spasticity conditions. These often lead to unwanted movement of the chair and, in many cases, to accidents. The application uses different output modalities to allow the user keep his/her attention on the navigation task without having to visually focus on the tablet screen. We conducted some preliminary tests with some people with disabilities to engage them in the design process and get their feedback on the first prototype. The general impression was positive with insight on future improvements to the system.