Environment Monitoring Sensor for LoRaWAN Networks

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Dr. Fehér Gábor
Department of Telecommunications and Media Informatics

Due to the rapid growth of the number of IoT devices, it has quickly become apparent, that the existing communication solutions were not invented with IoT devices in mind. These device were mostly battery powered application, placed far away in infrastructure-free enviroments and had to cover vast distances to send any data. These were the strongest argument for a new long distance communication solution. This saw the rapid development of LoRa, a new long range, low power communication solution specialized for IoT applications. These radios could be organized into a netwok, where they can exchange data. The LoRaWAN protocol was developed for communication on such networks. The system that was designed during this project shows the concept of these LoRaWAN networks and the way they are set up, operate and how the data is processed through the network.

In the first part of my thesis I present the defenition and the origins of IoT devices, as well as the theoretical background of LoRa radio, and the LoRaWAN networks and the way these IoT devices work. Following that, chaper 2 describes the most important features of the sensors, radios and microcontrollers used in this device. The second party of my thesis describes the way these IoT devices can be build and the code they are running and its importance. The end of my thesis is where the test data this devices recorded is presented, along with the possible future upgrades for this device. This part also show how the recorded data can be processed.


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