Abstract
Currently, the rapid development of cities and the rapid increase in urban populations have led to a sharp increase in urban components, making precise urban component management, query efficiency, and operational visualization urgent problems to be solved. In this paper, an in-depth study is carried out, pointing out that the current two-dimensional map or component management method based on a real-life three-dimensional city has defects, including query difficulty, fuzzy management, and inefficiency, and it is impossible to accurately and efficiently manage urban components. Then, this paper uses a combination of GIS technology and BIM technology as the starting point. On one hand, this combined technology is based on the high efficiency of the underlying data organization of the GeoSOT grid code and the accuracy of real geographic location expression; on the other hand, based on the integrity of the building information representation and the accuracy of the relative position of internal components of BIM, a precise urban component management method based on GeoSOT grid code and BIM is proposed. Finally, based on this method, a real-time 3D Earth visualization platform is established by using the Cesium platform. Taking the fire hydrant component management of the commercial Guanlan Street in Baiyin City, Gansu Province, China as an example, the precise management of the components in this area is realized, which proves that the method can achieve precise urban component management.
Highlights
Urban components are various facilities within the urban management public area, including public facilities, road traffic, city appearance, landscaping, housing, and other municipal engineering facilities and municipal utilities
The rapid development of cities has led to a sharp increase in urban components, making the precise urban component management, query efficiency, and operational visualization urgent problems to be solved
Through the analysis of the above research and applications, we find that there is an urgent need for a new method to solve the problems of management precision, query efficiency, and operation visualization in urban component management
Summary
Urban components are various facilities within the urban management public area, including public facilities, road traffic, city appearance, landscaping, housing, and other municipal engineering facilities and municipal utilities. The rapid development of cities has led to a sharp increase in urban components, making the precise urban component management, query efficiency, and operational visualization urgent problems to be solved. Through the combination of the GeoSOT grid code and BIM technology, a real-time 3D visualization earth platform was built by using the Cesium platform to achieve refined and efficient management of urban components. Within this combined technology, GeoSOT globally divided the three-dimensional grid technology from the bottom of the data to achieve data gridding processing and packaging [14,15,16]; BIM technology, from the perspective of three-dimensional urban building models, achieved architectural visualization and provided a complete and actual situation construction engineering information database. Multilevel meshing is used to manage a variety of urban components with different granularities, and multilevel precise management of the model data is realized from the data management level
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