Research on Safe Sharing of Electric Power Metering Data and Intelligent Contract Optimization Algorithm Based on Blockchain

Abstract

The traditional centralized management mode has the risks of data tampering and privacy disclosure, and the sharing efficiency is limited. In this paper, an algorithm for safe sharing and intelligent contract optimization of power metering data based on blockchain is proposed to improve the security and efficiency of data sharing. The sharing model includes data generation layer, blockchain network layer, smart contract layer and data access layer, which ensures the data's tamper resistance and privacy protection through distributed account books and encryption technology. The smart contract optimization algorithm adopts a modular design, comprising data validation, access control, and transaction optimization modules. It integrates the Dynamic Proof of Stake (DPoS) consensus mechanism and Hash TimeLocked Contracts (HTLC) for cross-chain protocols, significantly enhancing the execution efficiency and security of smart contracts. Simulation experiments conducted on the Hyperledger Fabric platform show that the proposed algorithm increases transaction throughput (TPS) by 256 % under high load, reduces Gas consumption by 38.6 %, and markedly improves the security of cross-chain transactions. Specifically, the success rate of double-spending attacks is reduced 24-fold, the success rate of data tampering attacks drops to 0.01 %, and the risk of privacy leaks is decreased 75fold compared to traditional schemes.