基于逻辑冲突检测的基础地理实体更新方法——以国土变更调查数据为例

An Updating Method for Fundamental Geographic Entities Based on Logical Conflict Detection—Using Land Use Change Survey Data as an Illustration

摘要: 随着新型基础测绘体系建设的逐步推进，湖南已构建起覆盖全省范围的基础地理实体数据库。地理实体数据更新工作量大，如何实现基础地理实体数据的高效精准更新，目前已成为业内亟待解决的问题。本文提出一种地理实体更新的全新思路，即通过检测地理实体与其他地理空间数据之间的逻辑冲突，依据逻辑冲突检测结果提取变化信息，从而实现基础地理实体数据的快速更新。该更新方法能够迅速且精确地提取出发生变化的地理实体，有助于大幅提升地理实体数据的更新效率，显著节省人力与物力成本。

Abstract: With the gradual progress of the construction of a new basic mapping system, Hunan has built up a basic geographic entity database covering the whole province. The workload of updating geographic entity data is huge, and how to realize efficient and accurate updating of basic geographic entity data has become a key issue to be solved in the industry. This paper proposes a new way of updating geographic entities, i.e., by detecting logical conflicts between geographic entities and other geospatial data, and extracting change information based on the results of the logical conflict detection, so as to realize the rapid updating of basic geographic entity data. This updating method can quickly and accurately extract the changed geographic entities, which helps to significantly improve the updating efficiency of geographic entity data and save the cost of manpower and material resources.