Use smart contracts to manage and chain the power company and users to ensure security. Send a private message with the complete code of the contract.
a) The existing system architecture and functions, who are the service providers and who are the users;
System architecture: Power auction system, deployed by energy companies.
Service Provider: Energy companies are service providers responsible for organizing and managing electricity auctions.
Users: Individual bidders participating in an auction, including consumers or other energy companies.
b) The working process of the existing system;
Energy companies release electricity supply information through auctions, including electricity quantity and price.
The bidder bids through the placeBid function, and the bid needs to be higher than the current highest bid.
After the auction ends, the energy company processes the highest bid through the closeAuction function and distributes the power to the highest bidder.
Energy companies can update electricity supply information at any time through the publishElectricityInfo function.
Users can withdraw their balance through the withdraw function.
c) Trust issues existing in the existing centralized collaboration process;
Bidding fairness: Bidders may not trust the fairness of the energy company during the auction process and suspect whether there is unfair operation.
Settlement Transparency: After the auction, participants may have concerns about the handling of the highest bid and the distribution of power.
Authenticity of information: Whether the auctioned electricity supply information is true and reliable may be questioned.
2. Propose a blockchain-based solution to the above trust issues and describe the following content
a) Choose the type of blockchain (public chain or alliance chain) and explain the reasons;
Choice: Alliance Chain.
Reason: Power auctions involve multiple energy companies and require establishing trust among a limited number of participants while protecting commercially sensitive information.
b) Blockchain system composition: If it is a consortium chain, describe who the multiple organizers are;
Organizer: Multiple energy companies constitute various nodes of the alliance chain.
c) The working process of the blockchain system:
i. What is the transaction process?
Energy companies publish power supply information through the blockchain, which is written into blocks.
- The bidder initiates a bidding transaction through the blockchain and records its bid and address.
- After the auction ends, the energy company processes the highest bid through a blockchain smart contract and automatically distributes the electricity.
ii. What information does the blockchain record?
- The blockchain records every transaction, including power supply information, bidding transactions, settlement information, etc.
- A block contains a batch of related transactions, forming a chain structure that cannot be tampered with.
iii. What functions does the smart contract accomplish?
- Smart contracts are responsible for handling the logic of electricity auctions and ensuring the fairness and transparency of bids.
- At settlement, the smart contract automatically allocates power to the highest bidder and handles the transfer of the balance.
- Provide a query interface to enable all participants to verify the authenticity of power supply information and settlement results. Demonstration system implementation