Home // SMART ACCESSIBILITY 2023, The Eighth International Conference on Universal Accessibility in the Internet of Things and Smart Environments // View article

An Audible Handheld Ultra-Sonic-Sonar (AHRUS) to Support Human Echo Location

Authors:
Florian von Zabiensky
Michael Kreutzer

Keywords: Human Echo Localization, Audible Ultrasound Sonar, Blind People, Spatial Hearing, Obstacle Detection

Abstract:
A portable device to support human echolocation is presented in the form of a handheld audible ultrasonic sonar called AHRUS. The device generates a bundled ultrasonic beam with which the environment can be scanned. A special modulation process uses the non-linear properties of the air as a transmission medium. After reflection at an obstacle, the beam changes to audible sound, which can be perceived with normal human hearing. In this way, blind people can perceive illuminated objects as if they were emitting noise themselves. This gives the impression of a kind of simple bat hearing supporting orientation in unfamiliar surroundings.

Pages: 8 to 9

Copyright: Copyright (c) IARIA, 2023

Publication date: April 24, 2023

Published in: conference

ISSN: 2519-8378

ISBN: 978-1-68558-084-1

Location: Venice, Italy

Dates: from April 24, 2023 to April 28, 2023