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User Density Estimation System Using High Frequencies in a Specific Closed Space

Authors:
Myoungbeom Chung

Keywords: high frequencies; inaudible sound; density estimation; smart device

Abstract:
In this paper, we propose a user density estimation system using high frequencies and the microphone of a smart device in a specific closed space. High frequencies are sent to the closed space by the server speaker of the proposed system, and smart devices located in the space detect the high frequencies. The smart devices detecting the high frequencies send a message to the server system, and the system counts the smart devices that detected the high frequencies in the space. We tested user density with the proposed system, using 10 smart devices to evaluate performance. According to the test results, the proposed system showed 95% accuracy. The system can estimate exact user density in a specific closed space, and it can be a useful technology for protecting people’s safety and measuring space use in indoor spaces.

Pages: 25 to 28

Copyright: Copyright (c) IARIA, 2018

Publication date: April 22, 2018

Published in: conference

ISSN: 2308-4448

ISBN: 978-1-61208-627-9

Location: Athens, Greece

Dates: from April 22, 2018 to April 26, 2018