Voice Controlled Navigational Aid With RFID-based Indoor Positioning System for the Visually Impaired

2018 IEEE 10th International Conference on Humanoid, Nanotechnology, Information Technology,Communication and Control, Environment and Management (HNICEM) Pub Date : 2018-11-01 DOI:10.1109/HNICEM.2018.8666270

G. A. Madrigal, Monica Lian M. Boncolmo, Melvin James C. Delos Santos, Sarah Marie G. Ortiz, F. O. Santos, Darlbeen L. Venezuela, Jessica Velasco

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引用次数: 9

Abstract

This paper presents the development of a voice-controlled navigational system that could assist the visually impaired people in travelling indoors independently. The system provides audible directions to the users in navigating from a specific location going to the desired destination. This system uses passive radio frequency identification (RFID) tags strategically located along the hallways of the facilities. These tags contain audible directions and they are detected by an RFID reader attached at the tip of a customized cane. The reader is connected to the Raspberry Pi 3 that serves as the brain of the system. It processes the data from the reader, validates the voice input of the user and provides the audio response. The adjustable customized cane measures from 88 cm to 130 cm with an approximate weight of 165 grams, which is lighter than commercially available canes that weigh around 300 grams. The speech recognition feature of the system is evaluated and an accuracy rate of 75.76% is obtained. Its response time in reading the tags is 1.38 seconds for a maximum distance of 1 inch. Overall, the system runs autonomously which helps the visually impaired people in navigating independently inside a specific establishment.

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视障人士声控导航辅助与射频识别室内定位系统

本文介绍了一种语音控制导航系统的开发，该系统可以帮助视障人士在室内独立行走。该系统为用户从特定位置导航到期望的目的地提供声音指示。该系统使用无源射频识别(RFID)标签，策略性地放置在设施的走廊上。这些标签包含可听到的指示，并由安装在定制手杖顶端的RFID读取器检测。阅读器与树莓派3相连，树莓派3作为系统的大脑。它处理来自阅读器的数据，验证用户的语音输入并提供音频响应。这款可调节的定制手杖的长度从88厘米到130厘米不等，重量约为165克，比300克左右的市售手杖轻。对系统的语音识别特性进行了评价，准确率达到了75.76%。在读取标签的最大距离为1英寸时，其响应时间为1.38秒。总的来说，该系统是自主运行的，可以帮助视障人士在特定场所独立导航。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE 10th International Conference on Humanoid, Nanotechnology, Information Technology,Communication and Control, Environment and Management (HNICEM)

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