基于双链架构与BBF-Merkle树的高速公路事故救援数据共享方法  

Highway accident rescue data sharing method based on dual-chain architecture and BBF-Merkle tree

作　　者：王光辉 关道伟 申凌峰 丁爽[1,2] 翟中豪 Wang Guanghui;Guan Daowei;Shen Lingfeng;Ding Shuang;Zhai Zhonghao(School of Software,Henan University,Kaifeng Henan 475000,China;Henan International Joint Laboratory of Intelligent Network Theory&Key Technology,Kaifeng Henan 475000,China;School of Computer Science&Software Engineering,Huaiyin Institute of Technology,Huai’an Jiangsu 223003,China)

机构地区：[1]河南大学软件学院,河南开封475000 [2]河南省智能网络与关键技术国际联合实验室,河南开封475000 [3]淮阴工学院计算机与软件工程学院,江苏淮安223003

出　　处：《计算机应用研究》2025年第4期987-994,共8页Application Research of Computers

基　　金：河南省科技攻关项目(242102211097,242102210139,252102210176,252102210232);河南省交通运输厅科技项目(2023-3-2);淮安市科技计划项目(HAB2024048);河南大学研究生教育创新与质量提升工程项目(SYLYC2023134,SYLYC2022147)。

摘　　要：针对现有区块链数据共享方法在高速公路事故救援场景下面临的效率瓶颈和安全性不足的问题,提出一种高效、安全的数据共享方法,旨在提高数据查询性能,保证链下数据的防窜改能力。提出的数据共享方法结合公有链与联盟链的优势,采用双链架构提升数据共享的安全性与效率。通过将公有链链上共享数据的摘要信息同步至外部数据库,设计了基于BBF-Merkle树的数据库索引结构来优化查询性能,同时保证链下数据的防窜改能力。设计了缓存-链下数据库-公有链的分层查询方案,降低整体查询耗时。实验结果表明,基于BBF-Merkle树的外联数据库查询耗时相较于其他方案表现最优,采用基于BBF-Merkle树的缓存-数据库-公有链分层查询方案,相较于公有链智能合约查询速度提高了七倍。所提出的数据共享方法在提升数据共享效率、降低查询延迟的同时,确保了数据的安全性与防窜改能力,为高速公路事故救援数据共享提供了技术支撑。The existing blockchain-based data sharing methods in highway accident rescue scenarios face efficiency bottlenecks and security issues.This paper proposed an efficient and secure data sharing solution to improve data query performance and ensure off-chain data integrity.The method used a dual-chain architecture that combines the advantages of public and consortium blockchains to enhance the security and efficiency of data sharing.It synchronized the summary information of shared data from the public blockchain to an external database and designed a BBF-Merkle tree-based database indexing structure to optimize query performance while maintaining off-chain data integrity.The method introduced a layered query scheme consisting of cache,off-chain database,and public blockchain to reduce overall query time.Experimental results show that the query time of the external database based on BBF-Merkle tree indexing outperformed other solutions.The cache-database-public blockchain layered query scheme achieves a faster query speed by seven times compared to the public blockchain based on smart contracts.The method improves data sharing efficiency,reduces query latency,and ensures data security and integrity,providing strong technical support for highway accident rescue data sharing.

关 键 词：区块链 数据共享 区块链查询优化 双链架构 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]