Abstract of smart cities applications:
This postgraduate project presents the design and implementation of a decentralized lottery system built on the Ethereum blockchain using the Solidity programming language. The proposed system aims to address the challenges associated with traditional lottery systems, providing a transparent, secure, and tamper-resistant alternative tailored for Smart Cities applications.
Existing System:
Traditional lottery systems often lack transparency, leading to trust issues among participants. Additionally, centralized control exposes these systems to potential fraud and manipulation. The proposed blockchain-based solution aims to overcome these shortcomings by leveraging the inherent security and transparency of blockchain technology.
Proposed System:
The proposed system introduces a decentralized lottery system on the Ethereum blockchain, allowing participants to engage in a fair and transparent lottery process. Smart Contracts written in Solidity govern the entire lottery lifecycle, from ticket issuance to winner selection, ensuring trustworthiness and eliminating the need for intermediaries. The decentralized nature of the system enhances security and reduces the risk of fraud.
System Requirements:
The system requires nodes running Ethereum clients to participate in the blockchain network. Additionally, participants need a web-enabled device with a modern browser to access the user interface and interact with the lottery system.
Hardware and Software Requirements for smart cities applications:
- Ethereum nodes for network participation
- Web servers for hosting the web user interface
- Modern web browsers for user interaction
- Solidity compiler for smart contract deployment
- Ethereum wallets for participants
Architecture of smart cities applications:
The architecture follows a decentralized model, where Ethereum nodes form the blockchain network. Smart Contracts, written in Solidity, govern the lottery processes, ensuring transparency and fairness. The web user interface facilitates user interaction with the lottery system, providing features such as ticket purchase, results viewing, and winner notifications.
Technologies Used:
- Ethereum blockchain
- Solidity programming language
- Web3.js for interaction between the web interface and smart contracts
- HTML, CSS, and JavaScript for the development of the web user interface
Web User Interface:
The web-based front-end offers a user-friendly interface for participants to engage with the lottery system. It includes functionalities such as account creation, ticket purchase, real-time lottery status updates, and winner announcements. The interface enhances accessibility, allowing users to seamlessly participate in the blockchain-based lottery from the comfort of their devices.
This project contributes to the evolving landscape of blockchain applications by demonstrating the feasibility and advantages of utilizing blockchain technology for transparent and secure lottery systems, particularly in the context of Smart Cities.
