Sistema de transmissão de dados via LoRa utilizando captação de energia solar

Abstract

Due to the popularization of Internet of Things applications, energy management has gained increasing relevance especially considering low power operations with renewable energy sources. Through an alarm application focused on rural and remote environments, this project seeks to assess the feasibility of a system capable of transmitting data through LoRa modulation, whose power is obtained by solar energy and the storage is based on supercapacitors instead of electrochemical solutions. Through experiments that aimed to obtain the average power consumption and the average power supply of the system, it was possible to estimate a maximum operating autonomy of about 13 hours and a minimum period of sunlight of approximately 2 hours and 30 minutes for the total load of the storage system. Thus, the application of the remote alarm system proved to be minimally viable, with sufficient autonomy for a night period and beeing able to be recharged within a few hours of sunlight. The use of better quality supercapacitors can provide more than a day of autonomy. Keywords: Energy harvesting. Solar energy. Internet of Thin