Sběr dat z bezdrátových snímačů v síti LoRa - laboratorní úloha

Abstract

This work deals with the wireless technology LoRa and the subsequent implementation of three measuring nodes for measuring environmental variables, which will use this technology for wireless transmission of measured data. These measuring nodes will then serve as a laboratory exercise for practical familiarization with this technology for other students. First, the basic principles of measuring the chosen environmental variables - temperature, relative humidity, and carbon dioxide concentration - are described. This is followed by the implementation of measuring nodes for measuring the mentioned variables. Their subsequent connection to the public community network, The Things Network, is also explained, along with the possibility of archiving data using the InfluxDB database and visualizing data in the form of graphs using the Grafana application. A control program using Node-RED is created for integrating individual applications. Finally, a guide summarizing these procedures is provided.