Comparison of Wheelchair User Interfaces for the Paralysed: Head-Joystick vs. Verbal Path Selection from an offered Route-Set
Comparison of Wheelchair User Interfaces for the Paralysed: Head-Joystick vs. Verbal Path Selection from an offered Route-Set
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瘫痪者轮椅用户界面的比较：头操纵杆与从提供的路线集中进行口头路径选择
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
U. Frese
中科院分区：
文献类型：
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作者：
C. Mandel;U. Frese
在这项工作中，我们比较了两种人机界面，使无法移动手臂和腿的残疾人能够驾驶自动轮椅。作为一个技术上更雄心勃勃的解决方案，我们首先提出了一个简单的语音识别系统，使瘫痪者能够从一组空间上有意义的解决方案中选择一条路径，随后由几何路径规划器执行。对比方法是由一个比例头部操纵杆给出的，该操纵杆在一个小型三自由度方向跟踪器的帮助下评估用户的头部姿势。这两个系统都是通过一项实证研究的结果来评估的，在这项研究中，未经训练的参与者使用所提供的界面在一个拥挤的办公环境中导航。
Within this work we compare two human-robot interfaces that enable handicapped people who may not move their arms and legs to steer an automated wheelchair. As a technically more ambitious solution we first propose a simple speech recognition system that enables the paralysed to select a path from a set of spatially meaningful solutions, that is subsequently executed by a geometric path planner. The contrasting approach is given by a proportional head-joystick that evaluates the user’s head posture with the help of a small-size three degrees of freedom orientation tracker. Both systems are assessed by the outcome of an empirical study in which untrained participants used the presented interfaces to navigate in a populated office environment.