Notice of retraction
Vol. 32, No. 8(2), S&M2292

ISSN (print) 0914-4935
ISSN (online) 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 32, Number 5(3) (2020)
Copyright(C) MYU K.K.
pp. 1899-1905
S&M2226 Research Paper of Special Issue
Published: May 31, 2020

Development of Smart Refrigerator Based on Message Queuing Telemetry Transport [PDF]

Chien-Yu Lu, Fei-Hsu Chen, Wen-Chiung Hsu, Lian-Wang Lee, and Te-Jen Su

(Received September 12, 2019; Accepted April 20, 2020)

Keywords: Internet of Things, cooling chip, embedded systems, remote monitoring, Message Queuing Telemetry Transport

Online shopping is becoming increasingly popular. However, the perishability of fresh food products requires them to be refrigerated when being shipped, and consumers must also accept the goods immediately when they are delivered. Multiple deliveries are not only a waste of resources but also reduce the freshness of the food products. We examined delivery boxes to design a smart delivery cabinet combined with a cooling chip. Its program uses Message Queuing Telemetry Transport (MQTT) to receive real-time information, view the cabinet’s real-time temperature and humidity, set temperature conditions, and open or close the cabinet door. Consumers can remotely open or close the box and adjust its temperature so that they do not have to wait for goods to be delivered at home or waste resources by forcing couriers to make multiple deliveries.

Corresponding author: Te-Jen Su

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Chien-Yu Lu, Fei-Hsu Chen, Wen-Chiung Hsu, Lian-Wang Lee, and Te-Jen Su, Development of Smart Refrigerator Based on Message Queuing Telemetry Transport, Sens. Mater., Vol. 32, No. 5, 2020, p. 1899-1905.

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