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Abstract: This article presents the development and implementation of an IoT-enabled, off-grid solar power supply prototype designed to power a range of electrical devices. The developed system comprises a Photovoltaic panel, a Maximum Power Point Tracking (MPPT) charger, a 2.5 kWh/24 V high-performance LiFePO4 battery bank with a Battery Management System, an embedded controller with IoT connectivity, and DC/DC and DC/AC converters. The PV panel serves as the primary energy source, with the MPPT controller optimizing battery charging, while the DC/DC and DC/AC converters supply power to the connected electrical devices. The article includes a case study of a developed platform for powering an information and advertising system. The system features a predictive energy management algorithm, which optimizes the appliance operation based on daily solar irradiance forecasts and real-time battery State-of-Charge monitoring. The IoT-enabled controller obtains solar irradiance forecasts from an online meteorological service via API calls and uses these data to estimate energy availability for the next day. Using this prediction, the system schedules and prioritizes the operations of connected electrical devices dynamically to optimize the performance and prevent critical battery discharge. The IoT-based controller is equipped with both Wi-Fi and an LTE modem, enabling communication with online services via wireless or cellular networks.
Keywords: energy consumption control, forecasted solar irradiation, power management, off-grid power supply, photovoltaic, solar, IoT, LTE, Wi-Fi, ESP32
Published in DKUM: 14.11.2025; Views: 0; Downloads: 1
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Abstract: Magistrsko delo zajema razvoj in implementacijo algoritmov za lokalizacijo, navigacijo in zaznavanje objektov v ograjenem okolju. Ti so bili implementirani na robotu FarmBeast, ki je bil uporabljen na tekmovanju FRE 2025. Pri delovanju sistema so bili uporabljeni senzorji LiDAR, RGBD kamere in IMU. Za načrtovanje poti so bile primerjane metode A*, D* in hibridni A* z nadaljnjo implementacijo A* in okrnjene verzije hibridne A*. Podobno so bile ocenjene metode vodenja PD, PID in pure pursuit ter na podlagi meritev implementirana pure pursuit. Lokalizacija je bila izvedena z uporabo obstoječe knjižnice Hector SLAM, ki omogoča kartiranje okolice z enovrstičnim LiDAR-jem. Rezultati potrjujejo učinkovitost uporabljenih algoritmov in metod, kar dokazuje tudi doseženo 2. mesto na tekmovanju FRE 2025.
Keywords: FarmBeast robot, lokalizacija, avtonomna navigacija, zaznavanje objektov, SLAM
Published in DKUM: 23.10.2025; Views: 0; Downloads: 8
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Abstract: Zaradi naraščajočih cen energije postaja problematika prezračevanja brez izgube toplote vedno bolj pomembna. V magistrskem delu je predstavljen celoten postopek, od zasnove do prodaje izdelka, ki to omogoča – lokalne pametne prezračevalne enote. Glavni motiv za lastni razvoj so bile številne pomanjkljivosti obstoječih sistemov na trgu, ki smo jih prepoznali z metodo analize. S kombinacijo metod programiranja, CAD-a, načrtovanja elektronike, izdelave mobilne aplikacije in vzpostavitve strežnika za prenos podatkov smo razvili končni izdelek. Po pridobitvi CE certifikata ima ta izdelek tudi možnost prodaje v EU.
Keywords: prezračevanje, lokalna prezračevalna enota, rekuperacija toplote, pametni dom, kakovost bivanja.
Published in DKUM: 03.06.2025; Views: 0; Downloads: 28
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Abstract: Namen magistrskega dela je opisati postopek razvoja tiskanih elektronskih vezij uporabljenih v formulah študent univerze v Mariboru. V sklopu zaključnega dela smo se spoznali z zahtevami pravilnika formule študent, razvojem elektronskih tiskanih vezij VCU, armaturna plošča, zavorna luč, BSPD, TSAL in razelektritveno vezje ter samo izdelavo in testiranje tiskanih vezij. Zaključno delo bo služilo prihodnjim generacijam ekipe UNI Maribor GPE pri razvoju in razumevanju elektronskih tiskanih vezij za nove dirkalnike. Prav tako bo služilo tudi vsem ostalim, ki bi želeli razviti svoja tiskana vezja za vozila.
Keywords: Formula Študent, PCB, VCU, BSPD, TSAL
Published in DKUM: 08.05.2025; Views: 0; Downloads: 32
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Abstract: The design of modern industrial products is further improved through the hardware-inthe-loop (HIL) simulation. Realistic simulation is enabled by the closed loop between the hardware under test (HUT) and real-time simulation. Such a system involves a field programmable gate array (FPGA) and digital signal processor (DSP). An HIL model can bypass serious damage to the real object, reduce debugging cost, and, finally, reduce the comprehensive effort during the testing. This paper provides a historical overview of HIL simulations through different engineering challenges, i.e., within automotive, power electronics systems, and different industrial drives. Various platforms, such as National Instruments, dSPACE, Typhoon HIL, or MATLAB Simulink Real-Time toolboxes and Speedgoat hardware systems, offer a powerful tool for efficient and successful investigations in different fields. Therefore, HIL simulation practice must begin already during the university’s education process to prepare the students for professional engagements in the industry, which was also verified experimentally at the end of the paper.
Keywords: hardware-in-the-loop (HIL), controller-in-the-loop (CIL), power hardware-in-the-loop (PHIL), electric drives, automotive, DC-DC converters, inverter systems, grid applications, railway systems
Published in DKUM: 07.04.2025; Views: 0; Downloads: 10
Full text (11,27 MB)
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