Cooper Rory A, Spaeth Donald M, Jones Daniel K, Boninger Michael L, Fitzgerald Shirley G, Guo Songfeng
Departments of Rehabilitation Science & Technology, Bioengineering and Physical Medicine & Rehabilitation, University of Pittsburgh, 5044 Forbes Tower, Pittsburgh, PA 15261, USA.
Med Eng Phys. 2002 Dec;24(10):703-8. doi: 10.1016/s1350-4533(02)00111-x.
There are limited interface options for electric powered wheelchairs, which results in the inability of some individuals to drive independently. In addition, the development of new interface technologies will necessitate the development of alternative training methods. This study compares a conventional position sensing joystick to a novel isometric joystick during a driving task in a virtual environment and a real environment. The results revealed that there were few differences in task completion time and root-mean-square error (RMSE) between the two types of joysticks. There were significant correlations between the RMSE in the virtual environment and the real environment for both types of joysticks. The data indicate that performance in the virtual environment was representative of driving ability in the real environment, and the isometric joystick performed comparably to the position sensing joystick.
电动轮椅的接口选项有限，这导致一些人无法独立驾驶。此外，新接口技术的发展将需要开发替代训练方法。本研究在虚拟环境和真实环境中的驾驶任务中，将传统的位置感应操纵杆与新型等距操纵杆进行了比较。结果显示，两种操纵杆在任务完成时间和均方根误差（RMSE）方面几乎没有差异。两种操纵杆在虚拟环境和真实环境中的RMSE之间均存在显著相关性。数据表明，虚拟环境中的表现代表了真实环境中的驾驶能力，等距操纵杆的表现与位置感应操纵杆相当。
