Samostojni senzor sončnega sevanja z brezžičnim LoRa vmesnikom

Pavlin, Maj (author), Jankovec, Marko (mentor)

Naloga se osredotoča na razvoj senzorja sončnega sevanja, ki je ključen element v energetiki, kmetijstvu in pri dolgoročnem spremljanju podnebja. Glavni pristop temelji na uporabi sončne celice, ki hkrati služi kot merilni element in vir napajanja za senzor. Sistem uporablja Li-ionski kondenzator za shranjevanje energije in tehnologijo LoRa za brezžično komunikacijo. Podatki se preko omrežja LoRaWAN pošiljajo v oblačno platformo za vizualizacijo in shranjevanje. Rezultat dela je delujoč prototip avtonomnega senzorja, ki deluje s petminutnim intervalom. Njegova povprečna poraba toka znaša 37,9 µA, kar zadostuje za neprekinjeno delovanje ob minimalnem sončnem sevanju.

• Language: Slovenian
• Keywords: internet stvari, senzor, sončcno sevanje, LoRa, LoRaWAN
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• PID: 20.500.12556/RUL-171993
• COBISS.SI-ID: 249315843
• Publication date in RUL: 05.09.2025

Secondary language

• Language: English
• Title: Standalone solar irradiance sensor with a wireless LoRa interface

Abstract

This thesis focuses on the development of a solar irradiance sensor, a key element in the energy sector, agriculture, and long-term climate monitoring. The main approach is based on the use of a solar cell that simultaneously serves as both a measuring element and a power source for the sensor. The system uses a Li-ion capacitor for energy storage and LoRa technology for wireless communication. Data is sent via the LoRaWAN network to a cloud platform for visualization and storage. The result of this work is a functional prototype of an autonomous sensor that operates at a five-minute interval. Its average current consumption is 37.9 µA, which is sufficient for continuous operation with minimal solar radiation.

• Keywords: internet of things, sensor, solar irradiance, LoRa, LoRaWAN