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Indoor Navigation Systems for Visually Impaired Persons: Mapping the Features of Existing Technologies to User Needs

机译:视障人士的室内导航系统:将现有技术的功能映射到用户需求

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摘要

Currently, several outdoor navigation and orientation electronic traveling aid (ETA) solutions for visually impaired (VI) people are commercially available or in active development. This paper’s survey of blind experts has shown that after outdoor navigation, the second most important ETA feature for VI persons is indoor navigation and orientation (in public institutions, supermarkets, office buildings, homes, etc.). VI persons need ETA for orientation and navigation in unfamiliar indoor environments with embedded features for the detection and recognition of obstacles (not only on the ground but also at head level) and desired destinations such as rooms, staircases, and elevators. The development of such indoor navigation systems, which do not have Global Positioning System (GPS) locational references, is challenging and requires an overview and evaluation of existing systems with different navigation technologies. This paper presents an evaluation and comparison of state-of-the-art indoor navigation solutions, and the research implications provide a summary of the critical observations, some insights, and directions for further developments. The paper maps VI needs in relation to research and development (R&D) trends using the evaluation criteria deemed most important by blind experts.
机译:当前,用于视觉障碍(VI)人的几种户外导航和定向电子旅行辅助(ETA)解决方案已在市场上出售或正在积极开发中。本文对盲人专家的调查显示,在进行室外导航之后,VI人员的第二个最重要的ETA功能是室内导航和定向(在公共机构,超级市场,办公楼,房屋等)。 VI人员需要ETA在不熟悉的室内环境中进行定向和导航,并具有嵌入式功能,用于检测和识别障碍物(不仅在地面上,而且在头上)以及所需的目的地,例如房间,楼梯和电梯。这种没有全球定位系统(GPS)位置参考的室内导航系统的开发具有挑战性,需要对具有不同导航技术的现有系统进行概述和评估。本文介绍了最先进的室内导航解决方案的评估和比较,其研究意义提供了对关键观测的总结,一些见识以及进一步发展的方向。本文使用盲人认为最重要的评估标准,将VI需求与研发(R&D)趋势相关联。

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