Giulia Barbareschi, Ando Ryoichi, Midori Kawaguchi, Minato Takeda, and Kouta Minamizawa. 2024. SeaHare: An omidirectional electric wheelchair integrating independent, remote and shared control modalities. In Proceedings of the 26th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '24). Association for Computing Machinery, New York, NY, USA, Article 9, 1–16. https://doi.org/10.1145/3663548.3675657
Depending on one’s needs electric wheelchairs can feature different interfaces and driving paradigms with control handed to the user, a remote pilot, or shared. However, these systems have generally been implemented on separate wheelchairs, making comparison difficult. We present the design of an omnidirectional electric wheelchair that can be controlled using two sensing seats detecting changes in the centre of gravity. One of the sensing seats is used by the person on the wheelchair, whereas the other is used as a remote control by a second person. We explore the use of the wheelchair using different control paradigms (independent, remote, and shared) from both the wheelchair and the remote control seat with 5 dyads and 1 triad of participants, including wheelchair users and non. Results highlight key advantages and disadvantages of the SeaHare in different paradigms, with participants’ perceptions affected by their skills and lived experiences, and reflections on how different control modes might suit different scenarios.
https://dl.acm.org/doi/10.1145/3663548.3675657

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