重庆主城区大比例尺地理空间数据动态更新

Dynamic Updating of Large-scale Geospatial Data in the Main Urban Area of Chongqing

城市大比例尺地理空间数据是城市规划建设、保障城市运行、服务民生以及建设智慧城市的重要基础资料,如何保持数据现势性,实现数据持续、动态更新,显得尤为重要。重庆在完成主城规划区1∶500比例尺地形图、地下管线、地下空间数据全面覆盖的基础上,就数据动态更新管理机制、资金保障、数据获取及建库新技术应用、作业模式、工作机制等方面进行了大量的探索实践,逐步建立起了数据动态更新机制。本文就相关机制及技术创新进行了总结,提出了基于日常巡查和网格化管理的大比例尺地理空间数据更新模式,增量式数据建库更新管理模式以及数据在线编辑更新入库模式等新思路。

Large-scale urban geospatial data are important basic data for urban planning and construction,urban operation maintaining,livelihood services and smart city construction. It is particularly important to maintain the reality of data and realize the continuous and dynamic updating of data. On the basis of comprehensive coverage of the planned main urban area with the 1∶500 topographic map,underground pipeline and underground spatial data,a lot of explorations and practices on data dynamic updating management mechanism,fund guarantee,data acquisition and application of new technology for database construction,operation mode and working mechanism are carrying out. This paper summarizes the relevant mechanisms and technological innovations,and introduces some new ideas,such as large-scale geospatial data updating model based on routine inspection and grid management,incremental database updating management model and online data editing and updating model.