Research Article
Design of Compact LoRa Devices for Smart Building Applications
@INPROCEEDINGS{10.1007/978-3-030-12950-7_12, author={S\^{e}rgio Lopes and Felisberto Pereira and Jos\^{e} Vieira and Nuno Carvalho and Ant\^{o}nio Curado}, title={Design of Compact LoRa Devices for Smart Building Applications}, proceedings={Green Energy and Networking. 5th EAI International Conference, GreeNets 2018, Guimar\"{a}es, Portugal, November 21--23, 2018, Proceedings}, proceedings_a={GREENETS}, year={2019}, month={2}, keywords={Green communications LoRa Smart buildings}, doi={10.1007/978-3-030-12950-7_12} }- Sérgio Lopes
Felisberto Pereira
José Vieira
Nuno Carvalho
António Curado
Year: 2019
Design of Compact LoRa Devices for Smart Building Applications
GREENETS
Springer
DOI: 10.1007/978-3-030-12950-7_12
Abstract
The use of smart devices in buildings is many times compromised by its form and size. Smart devices are composed of several components including sensors, boards, batteries, processing units, and antennas. However, the form and size of the smart devices are usually limited due to antenna restrictions. In this paper, we propose the architecture of a compact low-cost LoRa smart device designed for easy deployment in smart building applications. The proposed device architecture features a reduced size embedded antenna and an ultra-low-power microcontroller to interface several sensors and actuators. The results obtained have shown that the proposed design can be used for communication, between two compact LoRa devices, in line-of-sight for up to 4.2 km, in urban environments for up to 1.2 km and also for in-building communications for up to 152 m, without compromising the low-power features that LoRa supports.