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New Controlling Technique between Smart Devices Using Inaudible Frequency in Noise Environment

Authors:
Myoungbeom Chung

Keywords: Wireless communication; Signal processing; inaudible frequency; Controlling technique

Abstract:
Recently, existing technologies such as Wi-Fi socket communication, Bluetooth communication, Wi-Fi direct, etc., are used to control smart devices which are in close vicinity. However, those technologies have some problems. One problem is that the Wi-Fi socket communication cannot work when the socket server is not working. Another problem is that Bluetooth or Wi-Fi direct cannot work, if the Operation System (OS) of each smart device is different. Therefore, to address these problems, we propose a new control method for smart devices in close vicinity using high frequencies. High frequencies are mixed control signal, which are using 18 kHz ~ 22 kHz frequencies of audible frequencies and most of people cannot hear high frequencies. Indeed, because proposed method only uses micro-phone and speaker of smart device, it is not need to extra communication modules or communication server. And it can apply to most smart devices without reference to any OS. To evaluate the efficacy of the proposed method, we developed music control application and music player, which are applied to proposed method. Then, we experimented with developed applications at various distances and the control success rate was 97%. Moreover, when we use high frequencies proposed method, the signal recognition rates of surrounding people was 5%. Therefore, the proposed method could be a useful method for control between smart devices in near.

Pages: 1 to 5

Copyright: Copyright (c) IARIA, 2016

Publication date: July 24, 2016

Published in: conference

ISSN: 2519-8378

ISBN: 978-1-61208-525-8

Location: Nice, France

Dates: from July 24, 2016 to July 28, 2016