An Incremental Extraction Method of Spatial Entities Based on mrs‑mm Target Matching Model

Abstract

The invention discloses a spatial entity increment extraction method based on an MRS-MM (Multi-Rules Supported Matching Model) target matching model. Data in two years are subjected overlapping analysis, an MRS-MM is adopted for target matching, the entity change types, including entity new addition, entity loss, entity pattern change and entity attribute change, shown in the temporal and spatial change process are judged in the aspect of the spatial entity change behavior, the increment information extraction of a spatial database is realized through a designed increment information extraction algorithm according to the change types, and the problem of obtaining difficulty of increment packets in the current land utilization and urban and rural cadastral database increment updating is solved. The spatial entity increment extraction method provided by the invention has the advantages that the realization method of the technology is simple, the spatial databases in the two years are effectively managed, the computer automatic processing is adopted, the man-machine interaction is little, the time is saved, the work efficiency is improved, and the application prospects in the increment updating fields of the spatial databases of land utilization spatial databases, cadastral databases and the like are wide.

Description

technical field [0001] The invention belongs to the field of spatial data matching and incremental updating. In particular, it relates to a spatial entity incremental extraction method based on the MRS-MM target matching model. Background technique [0002] With the development and popularization of spatial databases, great achievements have been made in the construction of various spatial databases in my country. However, the current status of various databases cannot be guaranteed. Current status is the vitality of spatial databases, and the mainstream updating methods of spatial databases are increasing. Quantitative update is an effective means to solve the current situation of spatial database. How to quickly and effectively extract incremental information from the latest version database and complete the incremental update of spatial database is a key issue in the development of spatial database. [0003] At present, scholars at home and abroad have researched on the i...

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Problems solved by technology

Zhou Xiaoguang (2005) discussed the issue of incremental update of cadastral database based on topological relationship, and used various operators to update the parcel by analyzing the topological relationship of the plot. Good handling will bring hidden dangers to the subsequent investigation of land disputes

Li Su (2008) realized the dynamic update of cadastral information by establishing the "three databases in one" update method, that is, the current potential database, the historical database, and the change database, but this updating method ignores the topological consistency and attribute logical consistency of the cadastral data The error problem can easily cause data topology association errors and data redundancy

The multi-scale spatial database (Multi-Scale Spatial Database) automatic incremental update method proposed by Ye Y (2013) can realize the incremental update of the spatial database, but there are problems of loose filtering and missing matching in the design of the spatial element matching algorithm, and the matching is accurate. not high enough

[0004] The traditional spatial data update mainly uses surveying and mapping to obtain data, manually edits and updates in ArcMap, does not support integrated computer processing, and has defects such as messy topological relations and lack of consistency maintenance. After the update is completed, it is necessary to re-check the topological relations , modification, and manual update is time-consuming, labor-intensive, and error-prone

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