基于地理实体的时空信息服务平台关键技术研究与实践
Research and Practice on Key Technologies of Spatiotemporal Information Service Platform Based on Geographic Entities

新型基础测绘体系建设，是在满足各行业对地理信息数据新需求的前提下，推动整个测绘行业向实体化、先行化、扩展化发展的当务之急。地理实体数据库及平台建设作为新型基础测绘的核心内容和应用基础，能够显著增强基础测绘有效供给，推进各类专题空间数据的汇聚和融合，促进数据之间的相互支撑和共融共生，有力支撑自然资源精细化管理和经济社会高质量发展。本文在充分研究多元时空信息一体化、海量二三维空间数据管理及多态地理实体融合等关键技术的基础上，融合了二三维时空信息、各类扩展专题信息，设计并实现了基于地理实体的时空信息服务平台。平台具有查询统计、专题制图、关系图谱、一体多态等功能，并以实体编码为链，扩展了公安人防、社会治理、工业用地、教育医疗等多种专题信息，能够为政府部门提升社会治理现代化水平提供有力支撑，凸显了基础测绘在经济社会发展中的基础性保障作用。
The construction of a new basic surveying and mapping system is an urgent task to promote the de-velopment of the entire surveying and mapping industry towards entity, advancement, and expan-sion, while meeting the new demands of various industries for geographic information data. The construction of geographic entity databases and platforms, as the core content and application foundation of new basic surveying and mapping, can significantly enhance the effective supply of basic surveying and mapping, promote the aggregation and integration of various thematic spatial data, promote mutual support and symbiosis between data, and effectively support the refined management of natural resources and high-quality economic and social development. Based on a thorough study of key technologies such as the integration of diverse spatiotemporal information, massive management of two-dimensional and three-dimensional spatial data, and the fusion of polymorphic geographic entities, this article integrates two-dimensional and three-dimensional spatiotemporal information, various extended thematic information, and designs and implements a spatiotemporal information service platform based on geographic entities. The platform has functions such as query statistics, thematic mapping, relationship graph, and integrated polymorphism, and uses entity codes as a chain to expand various thematic information such as public security and civil defense, social governance, industrial land, education and medical care. It can provide strong support for government departments to improve the modernization level of social governance, highlighting the fundamental guarantee role of basic surveying and mapping in economic and social development.