Decentraliziran sistem polnjenja na osnovi bločno-verižne tehnologije

Gobec, Matjaž (author), Diaci, Janez (mentor), Corn, Marko (comentor)

S to zaključno nalogo zajemamo vsebino poletne šole Industrijski internet stvari in bločno-verižne tehnologije v tako imenovanem konceptu pametnih mest, ki je bila izvedena v okviru laboratorija LAMPA in jo zaključujemo z reševanjem praktičnega problema z uporabo novih tehnologij kot sta internet stvari in bločno-verižna tehnologija. Naš sistem predstavlja polnilnica za električna vozila, ki smo jo z namenom povezovanja z ekosistemom pametnega mesta implementirali kot decentraliziran sistem z uporabo Ethereum omrežja. Ta nam je omogočil razvoj pametne pogodbe, ki predstavlja osrednji člen pri avtonomnem izvajanju zasnovanega protokola storitve polnjenja. Sistem polnilne postaje smo zasnovali kot demonstracijski model, ki je zajemal strojno in programsko opremo. Fizični del so sestavljali polnilna postaja, končni uporabnik oz. vozilo in računalnik Raspberry PI, ki so bili povezani v internetno omrežje. Za dostop do decentralizirane aplikacije smo uporabili strežnik v okolju Node.js, pametno pogodbo pa smo razvili v razvojnem okolju Truffle. V pogodbi smo implementirali naš protokol polnjenja, ki je vseboval vse ključne funkcije, potrebne za delovanje. Predlagana rešitev z bločno-verižno tehnologijo je prinesla izboljšave v samodejnem izvajanju storitve, v varnosti in zanesljivosti delovanja. Obravnavali smo tudi njene omejitve, kar smo dosegli s testiranjem pogodbe in pri tem zabeležili stroške ter čas sprejetja transakcij, ki predstavljata glavni oviri.

• Language: Slovenian
• Keywords: decentraliziran sistem bločno-verižna tehnologija Ethereum omrežje internet stvari električna polnilnica
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [M. Gobec]
• Year: 2022
• Number of pages: XIII, 39 f.
• PID: 20.500.12556/RUL-138244
• UDC: 004.725.4:681.5(043.2)
• COBISS.SI-ID: 115183875
• Publication date in RUL: 13.07.2022

GOBEC, Matjaž, 2022, Decentraliziran sistem polnjenja na osnovi bločno-verižne tehnologije [online]. Bachelor’s thesis. Ljubljana : M. Gobec. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=138244

Secondary language

• Language: English
• Title: Blockchain-based decentralized charging system

Abstract

This final thesis is based on the topics discussed during the Summer School of Industrial Internet of Things and blockchain, which was held by the Laboratory LAMPA in September 2021. The Summer School was looking to provide a solution to a real-world problem with the use of technology, including IoT and blockchain. Electric vehicle charging was selected as the system of choice in our demo version, which included an electric charging station and the end user or a vehicle. We proposed a solution to an existing charging process with the use of a decentralised app based on blockchain that enables an interaction with other smart city infrastructure. Following that we developed the core element of the system – a smart contract that enables an autonomous execution of the charging protocol. The charging station was developed as a system, including hardware, connected to the internet using IoT and software. It used RFID for the identification of charging vehicles and the computer Raspberry PI that ran application backend and enabled connectivity. On the software side, the Node.js server served as the application background that we used to access charging station functions and the smart contract built in the Truffle development environment. Our charging protocol consisted of the main functions that were necessary to carry out all the functionalities of the system. The proposed solution based on decentralised blockchain improved the safety and reliability of the system and enabled self-execution of the charging service. Furthermore, we discovered its limitations while testing and measured the transaction fees that a user must pay to use the functions of the contract. Considering the outcomes, the two main areas that require further optimisation are a reduction of costs and increasing the speed of the transaction process.

• Keywords: decentralized system blockchain Ethereum network Internet of Things electric charging station