The 2020 Geographic Information Technology Innovation Conference, held in Beijing from October 13-16, 2020, was jointly organized by the China Geographical Information Industry Association, the China Surveying and Mapping Society, the China Regional Science Association, the China Mayors Association, the School of Earth and Space Sciences of Peking University, the School of Resource and Environmental Sciences of Wuhan University, Yi Zhirui Information Technology Co., Ltd. Pay attention to the typical and innovative application of geographic information technology by users in various industries. The conference will bring together scholars, experts, enterprises, education and other forces in the field of geographic information to explore the innovative value of geographic information technology in promoting information exchange and information management in the human world. Professor Yu Zhaoyuan reports online, which explores the theoretical methods, key technologies and typical applications of the urban information model (CIM) based on holographic map technology, starting from the concept and connotation of the urban information model. This paper summarizes the integrated expression, modeling, analysis and application that CIM should meet in space, process, full element and full use. A CIM modeling method based on unified space-time framework and high-dimensional scene model is established. This paper introduces the key technical methods of urban scene fidelity modeling, sound and light electromagnetic data acquisition modeling and information intelligence analysis and location aggregation based on holographic map technology, develops a unified CIM platform with customizable and configurable core, and gives the application practice of CIM in natural resources, planning real estate and public security.

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