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Journal of Computer Networks and Communications
Volume 2019, Article ID 1506237, 13 pages
https://doi.org/10.1155/2019/1506237
Research Article

An Implementation of Hardware-Accelerated Serial Interface of IoT Gateway for Enabling Machine-Type Communication: A Case Study of Networking IR Controllable Home Appliances

Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung 41349, Taiwan

Correspondence should be addressed to Mao-Lun Chiang; wt.ude.tuyc@gnaihclm

Received 31 August 2018; Revised 28 January 2019; Accepted 7 March 2019; Published 3 April 2019

Academic Editor: Giovanni Pau

Copyright © 2019 Wen-Chung Tsai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this paper, we propose an implementation of machine-type communications by combining a novel hardware-accelerated serial interface and a conventional Internet of things (IoT) gateway. Even all home appliances with an infrared (IR) remote controller can be operated through the Internet. In the future, application paradigms will transfer from human-type communications to machine-type communications to provide services such as health care and smart-home control systems. Therefore, commercial IoT gateways are required for intranet-Internet bridging of various wireless access services. Home appliances that are currently used or will foreseeably be used in the future lack network capabilities but can be controlled by an IR remote controller. Accordingly, to leverage existing IR control capabilities, we implemented a smart-home control system, which enables an IR signal to be remotely controlled to emit through the Internet. The implemented system provides a hardware-accelerated serial interface to sample IR signals—including extremely high-frequency signals—and includes a hardware-based data compression mechanism able to reduce the size of oversampled data and save flash memory space. A more intelligent control style can thus be realized by leveraging existing home appliances for the smart-homes of the future.