ABSTRACT
Undoubtedly, we are currently living in the era of rapid technological development. Intelligent systems such as smartphone, computer, and robot make our lives more and more efficient, and people can live longer with the development of medical science and improved healthcare technology. However, we should not overlook the fact that individuals with severe disability do not get sufficient benefit from this rapid technological advancement [1,2]. For example, most of the quadriplegic patients still depend on Sip ’n’ Puff, head-switch, and mouth-stick, having limited functionality and accessibility, although they are intuitive, robust, and price competitive [3,4]. Moreover, these devices are mostly designed for a single task (e.g., Sip ’n’ Puff for driving a power wheelchair (PWC) and mouth-stick for computer access), which necessitates the effort of carrying multiple devices and switching between them.
