Improving Human-Machine Interaction for a Powered Wheelchair Driver by Using Variable-Switches and Sensors that Reduce Wheelchair-Veer
Improving Human-Machine Interaction for a Powered Wheelchair Driver by Using Variable-Switches and Sensors that Reduce Wheelchair-Veer
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通过使用减少轮椅转向的可变开关和传感器来改善电动轮椅驾驶员的人机交互
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
S. Simandjuntak
中科院分区：
文献类型：
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作者：
D. Sanders;M. Langner;N. Bausch;Ya Huang;Sergey Khaustov;S. Simandjuntak
提出了人机交互比例开关和传感器与转向校正系统的集成。传感器和传感器改善控制，帮助轮椅司机和减少轮椅转向，特别是在斜坡上。该系统还减少了工作量。比例开关对于没有足够技能使用操纵杆的残疾人，或者缺乏足够的手握和释放能力的人，或者有运动障碍的人特别有用。新系统在实验室测试台上进行了测试。这些测试设备后来被重新使用，以教授人类用户。在进行用户试验之前，建造了一条滚动的道路来测试系统。轮椅脚轮的角度提供了反馈，反馈被用来减少漂移。新的电子系统将脚轮角度与驱动器输入相匹配。描述了一个案例研究。研究结果表明，使用可变开关比数字或二进制开关更有优势。当用户穿过斜坡时，转向校正系统可以提供帮助。换能器和系统已在Chailey heritage进行了测试，并被证明在帮助电动轮椅使用者方面很有用。比例开关隔离粗大的运动功能，过滤掉不受控制的运动。传感器系统可以帮助用户在不平坦或倾斜的地面上驾驶。换能器还提供更多的控制在转弯，可以减少转弯半径，以及可以降低挫折和节约能源。
The integration of proportional switches for human-computer interaction and sensors with veer correction systems are presented. The transducers and sensors improve control, assist wheelchair drivers and reduced wheelchair veer, especially on slopes. The systems also reduce effort. The proportional switches are particularly useful for disabled people who do not have enough skill to use a joystick, or who lack sufficient hand-grasp and release ability, or who have movement disorders. The new systems were tested using laboratory test rigs. The test rigs were reused later to teach human users. A rolling road was then built to test the systems before user trials were undertaken. The angle of the wheelchair casters provided feedback and that feedback was used to reduce drift. A new electronic system matched the caster angles to the driver input. A case study is described. Results are presented, and they suggest there are advantages to using variable rather than digital or binary switches. The veer correction system can assist when a user is traversing a slope. The transducers and systems have been tested at Chailey heritage and are proved to be useful in assisting powered-wheelchair users. The proportional switches isolate the gross motor functions and filter out uncontrolled movement. The sensor system helps users to steer on uneven or sloping ground. The transducers also provide more control during turning and can reduce the turn radius as well as can lower frustration and conserving energy.