通过重新设计盲人行走手杖来改善障碍物检测。

Improving obstacle detection by redesign of walking canes for blind persons.

作者信息

Schellingerhout R, Bongers R M, van Grinsven R, Smitsman A W, Van Galen G P

机构信息

Developmental Psychology, University of Nijmegen, The Netherlands.

出版信息

Ergonomics. 2001 Apr 15;44(5):513-26. doi: 10.1080/00140130120830.

DOI:10.1080/00140130120830

PMID:11345494

Abstract

This paper describes an experiment in which the performance of cane walkers with the traditional straight long cane and a redesigned cane, the curved cane, was compared. The curved cane has a curve where the tip touches the ground. Participants were 18 experienced cane walkers who were totally blind. The aspects of cane walking that were investigated included obstacle detection, drop-off (slope) detection and walking speed. The performance with both canes was investigated in two different ways: (1) by means of constructed courses in which objective measures of cane walking were derived; and (2) by means of more qualitative measures based on the participants' experiences with the curved cane during a 3-week try-out period. Results showed that obstacle-detection was significantly better with the curved cane, whereas drop-off detection and walking speed were comparable for the two canes. The participants' experiences mirrored these results.

摘要

本文描述了一项实验，该实验比较了使用传统直长手杖的手杖行走者和重新设计的弯曲手杖的行走表现。弯曲手杖在其尖端接触地面的位置有一个弯曲。参与者是18名完全失明的有经验的手杖行走者。手杖行走所研究的方面包括障碍物检测、落差（斜坡）检测和行走速度。两种手杖的表现通过两种不同方式进行研究：（1）通过构建课程，从中得出手杖行走的客观测量结果；（2）通过基于参与者在为期3周的试用期间使用弯曲手杖的体验的更具定性的测量方法。结果表明，使用弯曲手杖时障碍物检测明显更好，而两种手杖在落差检测和行走速度方面相当。参与者的体验也反映了这些结果。