时空对象动态行为分布式计算的数据库实现  

Database Implementation for Distributed Computing of Dynamic Behavior of Spatio⁃temporal Objects

作　　者：曾梦熊 张政[1] 张江水[1] 陈敏颉 崔虎平[1] ZENG Mengxiong;ZHANG Zheng;ZHANG Jiangshui;CHEN Minjie;CUI Huping(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《测绘科学技术学报》2024年第6期638-645,共8页Journal of Geomatics Science and Technology

基　　金：国家重点研发计划项目(2016YFB0502300)。

摘　　要：空间数据模型的已有研究并不涉及实体的行为特征,而将实体时空特征与行为过程分开建模的方式,缺乏对个体行为的描述,难以适用于多能自主个体的动态行为表达,并且实现个体层面的动态行为往往需要大量的计算。为解决上述问题,基于多粒度时空对象数据模型从面向个体的角度对时空实体的内部状态和行为能力进行了统一描述与结构化存储,提出一种从底层结构上支持动态行为分布式计算的数据库实现,采用“混搭式”的数据存储架构和“主—从”数据库存储策略优化数据存储与管理,为时空对象动态行为的实现提供基础支撑。实例研究结果表明,数据库的实现改变了将动态行为视作过程模拟的方式,为时空对象动态行为分布式计算提供了有效支持。The current researches on spatial data models are not focused on behavioral features.In these resear⁃ches,the way of modeling entity spatio⁃temporal features and behavioral processes separately lacks the description of individual behaviors,which is difficult to apply to the expression of dynamic behaviors of pluripotent autonomous individuals,and the realization of dynamic behaviors at the individual level often requires a large amount of compu⁃ting.To solve the above problems,a database implementation that supports dynamic behavior distributed computing from the underlying structure based on the Multi⁃granularity Spatio⁃temporal Object Data Model is proposed to unify the description and structured storage of the internal states and behavioral capabilities of spatio⁃temporal entities from an individual⁃oriented perspective in this paper.A"hybrid"data storage architecture and a storage strategy of"master⁃slave"database are adopted to optimize data storage and management,which provides basic support for the realization of dynamic behavior of spatio⁃temporal objects.The results of the case study show that the imple⁃mentation of the database can change the way of treating dynamic behavior as process simulation and provide effec⁃tive support for the distributed computing of dynamic behavior of spatio⁃temporal objects.

关 键 词：时空对象 动态行为 全空间信息系统 多粒度时空对象数据模型 分布式计算 数据库实现 

分 类 号：P208[天文地球—地图制图学与地理信息工程]