面向时空数据的区块链研究综述  

Survey of Blockchain Research for Spatiotemporal Data

作　　者：傅易文晋 陈华辉[1] 钱江波[1] 董一鸿[1] FU Yiwenjin;CHEN Huahui;QIAN Jiangbo;DONG Yihong(Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo,Zhejiang 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《计算机工程》2020年第3期1-10,共10页Computer Engineering

基　　金：国家自然科学基金(61572266)。

摘　　要：时空数据包括时间和空间2个维度,常被应用于物流、供应链等领域。传统的集中式存储方式虽然具有一定的便捷性,但不能充分满足时空数据存储及查询等要求,而区块链技术采用去中心化的分布式存储机制,并通过共识协议来保证数据的安全性。研究现有区块链1.0、2.0和以Block-DAG为代表的3.0体系架构及性能特点,分析三代区块链架构应用于时空数据时的性能支持度、优化方式以及局限性,并对区块链技术在时空数据领域的应用前景、存在的问题和未来的研究方向进行展望。The spatiotemporal data,which includes both time and space dimensions,is often used in some fields such as logistics and supply chain.Although the traditional centralized storage method has certain convenience,it cannot meet the needs of spatiotemporal data storage and query.In contrast,the blockchain technology applies decentralized distributed storage mechanism and uses consensus protocol to guarantee data security.The architectures and performance characteristics of the current blockchain 1.0,blockchain 2.0 and blockchain 3.0 represented by Block-DAG are studied,and their performance support,optimization modes and limitations for the spatiotemporal data are analyzed.Furthermore,the application prospect,existing problems and future research directions of blockchain technology in the field of spatiotemporal data are discussed.

关 键 词：区块链技术 分布式存储 时空数据 体系架构 Block-DAG架构 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]