湖北省级国土调查数据库优化与关键技术研究

Study on the Hubei Province Land Use Database Design and Optimization

针对国土调查成果大数据的高效建库管理、应用与可视化问题,立足湖北省级国土调查数据库在多源数据管理与应用、数据库性能优化和数据快速服务等方面的现实需求,围绕时空大数据存储与管理机制、高性能数据分析和海量数据动态渲染与可视化等关键技术展开了研究。结果表明,升级优化后的湖北省级国土调查数据库管理系统支持的最大并发、稳定访问量为400;在最大并发访问数的前提下,查询浏览县级以上各类数据成果的响应时间达到5 s以内,系统分析计算与可视化性能达到了预定的优化目标。研究成果将服务于湖北省第三次国土调查数据库的建设。

To achieve the goal of proposing a database design scheme to address the problems of data storing,updating,and efficiently applying Hubei Province land use survey data,a serious of technologies on spatial-temporal big data storage,high-performance data analysis,and dynamic rendering and visualization of massive land use data were developed to cope with the multi-source data management,database performance optimization and rapid data service in Hubei Province land use data application.Technical test results show that when the number of concurrent accesses of the system reaches the maximum number of users 400,the query response time of the system is less than 5 seconds.Overall,the performance of the system concurrent access and data distribution has reached the predetermined goal and is expected to support the third Hubei Province land survey database implementation.