IEEE Trans Neural Syst Rehabil Eng. 2018 Jul;26(7):1381-1390. doi: 10.1109/TNSRE.2018.2838326.
Attendant joysticks of powered wheelchairs are devices oriented to help caregivers. Diseases and disabilities such as dementia, spinal cord injuries or blindness make the user unable to drive the chair by his or her own. However, this device is not intuitive to use, especially for old people. Proper processing of the information provided by two tactile sensors in the handlebar achieves control signals that allow an easy and intuitive driving. This is done in this paper, where the performance of this approach is evaluated in comparison with that of the joystick by means of objective measurements as well as questionnaires to obtain the subjective perception of the participants in the experiments. The results show a better performance of the handlebar in terms of error in following a trajectory, collisions with the surrounding furniture, and user feeling related to ease of use, comfort, required training, usefulness, safety, and fatigue.
电动轮椅的辅助操纵杆是一种旨在帮助护理人员的设备。痴呆症、脊髓损伤或失明等疾病和残疾会导致使用者无法自行驾驶轮椅。然而，对于老年人来说，这种设备并不直观易用。正确处理手柄上两个触觉传感器提供的信息可以实现控制信号，从而实现轻松直观的驾驶。本文就通过客观测量和问卷调查的方式来评估这种方法的性能，以获得实验参与者的主观感受，从而实现这一点。结果表明，在跟踪轨迹的误差、与周围家具的碰撞以及与易用性、舒适性、所需培训、有用性、安全性和疲劳感相关的用户感受方面，操纵杆的性能更好。
