地球信息科学学报

地球信息科学学报 ›› 2021, Vol. 23 ›› Issue (1): 76-83.doi: 10.12082/dqxxkx.2021.200417

• 专栏："全空间信息建模分析方法与应用研究" • 上一篇    下一篇

基于时空域的全空间数字世界时空对象组织与管理研究

华一新(), 张江水*(), 曹一冰   

  1. 中国人民解放军战略支援部队信息工程大学 地理空间信息学院,郑州 450052
  • 收稿日期:2020-07-30 修回日期:2020-09-26 出版日期:2021-01-25 发布日期:2021-03-25
  • 通讯作者: 张江水
  • 作者简介:华一新（1963— ）,男,江苏句容人,博士,教授,主要从事地理信息系统平台及其应用技术研究。E-mail: chxyhyx@163.com
  • 基金资助:
    国家重点研发计划项目(2016YFB0502300)

Research on Organization and Management of Spatio-temporal Objects in Pan-spatial Digital World based on Spatio-temporal Domain

HUA Yixin(), ZHANG Jiangshui*(), CAO Yibing   

  1. Institute of Geographic Space Information, People's Liberation Army of China Strategic Support Force Information Engineering University, Zhengzhou 450052, China
  • Received:2020-07-30 Revised:2020-09-26 Online:2021-01-25 Published:2021-03-25
  • Contact: ZHANG Jiangshui
  • Supported by:
    National Key R&D Project of China(2016YFB0502300)

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摘要：

全空间数字世界是在计算机系统中由描述现实/虚拟世界各种实体与要素的时空对象数据所构成的综合数据体,是一种对从宏观到微观的现实/虚拟世界的对象化数据描述。传统GIS对地理空间数据的分块与分层管理方法,无法满足全空间数字世界中复杂、动态、关联的时空对象组织与管理的需要,因此,本文研究提出了一种基于时空域的全空间时空对象组织与管理方法。在分析了全空间数字世界的概念、内容和特点的基础上,提出了时空域的基本概念,明确了时空域的数据组织方式和本质特性;建立了面向时空域的子时空域、时空对象类、对象关系类和时空域时空对象生命周期序列的时空对象数据组织体系和管理方法,并进行了时空域数据的存储与管理实验,验证了基于时空域的全空间时空对象组织与管理方式在管理全空间数字世界中的实用性和可行性,为后续示范应用场景中时空对象的生成与处理、检查与校验、可视化与输出提供底层支撑。

关键词: 全空间数字世界, 时空域, 子时空域, 时空实体, 时空对象, 时空对象类, 对象建模, 关系类

Abstract:

The pan-spatial digital world is a comprehensive data body composed of spatiotemporal objects describing various entities and elements in the real/virtual world in the computer system. It is an object-oriented description of the real/virtual world from macro to micro dimensions. Since the traditional management method using blocks and layers in GIS is not suitable for managing the complex and dynamic spatio-temporal objects in the pan-spatial digital world, an organization and management method of pan-spatial spatio-temporal objects based on spatio-temporal domain is proposed in this study. Based on analyzing the concept, composition, and characteristics of pan-spatial digital world, the concept of spatio-temporal domain is put forward. This study defines the data organization mode and essential characteristics in the spatio-temporal domain, and establishes a data organization system and management method including sub spatiotemporal domain, spatio-temporal object class, object relation class, and life cycle sequence of spatio-temporal objects in the spatio-temporal domain. The storage and management experiments of spatio-temporal data are carried out, which proves the practicability and feasibility of the organization and management of spatio-temporal objects based on spatio-temporal domain. This study provides an underlying support for the generation and processing, inspection and verification, visualization and output of spatio-temporal objects for future application scenarios.

Key words: pan-spatial digital world, spatio-temporal domain, sub-spatio-temporal domain, spatio-temporal entity, spatio-temporal object, spatio-temporal object class, object modeling, relationship class