Sistema de monitoramento LoRa aplicado a uma estufa de cultivo

Abstract

The Long Range (LoRa) digital communication technology, which uses Chirp Spread Spectrum modulation, emerged from efforts to address issues in the Internet of Things (IoT) field. It enables data transfer in control and monitoring applications where other communication methods are unavailable or where a minimal bitrate is required, all while maintaining low power consumption. It can be used, for example, in tracking endangered animals in conservation areas and in smart farms to obtain real-time data on temperature and soil moisture. This work presents an application of LoRa and LoRaWAN technology, utilizing hardware and software for endpoints and a gateway. The endpoints monitor physical variables in a greenhouse, such as temperature, humidity, and luminosity, using LoRa sensors, while a LoRa gateway acts as a data concentrator and provides internet access. The system allows for transmitting the data acquired with high energy efficiency from the endpoints through a proprietary data protocol developed for sending to the LoRa gateway, which sends the data to a cloud-based freeware platform for storage and analysis from anywhere with internet access.Data from sensors and operating current consumption of the system were also collected in a test bench to determine the system’s operating time and behavior.