City information model service method and system

Abstract

The invention provides a city information model service method and system, and relates to the technical field of three-dimensional model application. The city information model service method comprises the following steps that: firstly, storing a city information model in a space database, wherein the format of the city information model is CityGML; then, when a service request emitted from an external application is received, calling the city information model corresponding to the service request from the space database; and in addition, through Web element service, sending the city information model to the external application. Through the above processing process, the uniformly defined city information model can be stored; and when use requirements are in the presence, the external application can conveniently and quickly obtain the required city information model so as to realize the reuse of the city information model under different application scenes.

Description

technical field [0001] The invention relates to the technical field of three-dimensional model application, in particular to a city information model service method and system. Background technique [0002] The urban information model is based on the urban information data, and establishes an organic synthesis of the three-dimensional urban space model and urban information. With the development of national digital cities and smart cities, urban three-dimensional information management and construction are rapidly advancing in various fields. There are more and more urban information model data in various places, and at the same time, a large number of urban model application systems have emerged. However, most of these urban information model applications are based on 3D visualization, and the value of 3D model data has not been fully applied to industry business. Because the data formats in the 3D model systems of different industries are often different at present, ther...

AI Technical Summary

Problems solved by technology

Currently, the data formats in the 3D model systems of different industries are often different, and there is no unified semantic information, which leads to the inability to reuse the 3D model data of different industries or different systems in the same urban area

[0003] The technical shortcomings of existing urban information model data application systems are mainly manifested in the following aspects: 1) 3D model data is stored in a file system, which is not conducive to retrieval and maintenance; 2) 3D model data has no unified definition, and the content of data information is Spatial location and graphic presentation are the main focus, without semantic information; and semantic information is the basis for connecting urban information model data and business application systems

3) Model data and applications are often deeply bound and highly coupled, and the 3D model data or functions built by a system are difficult to be reused by other systems

[0004] In summary, there is currently no effective solution to the problem that urban information models cannot be reused in different application scenarios

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