Exploration and practice of urban spatial stereo unit in the construction of CIM platform

doi:10.13474/j.cnki.11-2246.2023.0283

Abstract

Abstract: The construction of CIM basic platform has brought together a large amount of spatiotemporal and non spatiotemporal data in cities, providing rich data sources for smart cities. At the same time, the integration and use of data has also encountered new challenges. This article focuses on the problems of multi-source data fusion in CIM platform construction, and put up with key technology of spatial 3D grid and CIM data fusion using the geospatial grid encoding rules, knowledge graph, and multi-source semantic model. On the basis of CIM1-7 products, the concept of urban spatial 3D grid is proposed. By building multi-level three-dimensional spatial 3D grid, it can realize information fusion of mass urban base and multiple elements based on urban space, and provide more convenient and safer urban information services for various business applications.

Key words: urban spatial grid, earth grid spatial coding rule, city information model, data fusion, data sharing

CLC Number:

P208

TIAN Linan, SUN Qi, XU Wenkun, DONG Ping, TIAN Zhixin, RONG Chao, JI Zezhong. Exploration and practice of urban spatial stereo unit in the construction of CIM platform[J]. Bulletin of Surveying and Mapping, 2023, 0(9): 160-164.

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