Cadastral Database Is Updated Dynamically Research And Implementation Of A Prototype System

In recent years, with the fast development of spatial data acquisition technology ofGIS, RS and GPS, the cadastre management department need to deal with more andmore spatial data. However, the town cadastral data updating often only involves townof limited regional, and it is no need to update the entire town of cadastral data. How toefficiently update the cadastral data, to keep cadastral data of reality and scientific, is anurgent problem that should be solved. This thesis takes advantage of the spatial datamanagement theory model of cadastre management to daily cadastral data updating ofactual work. Based on the geographical spatio-temporal data model, the geographicalspatio-temporal topology relationship, geographical update operation algorithm andupdate process, and combinated with the ArcEngine development platform and theOracle10database management platform, the thesis implemented the cadastral databasedynamic updating prototype system.Firstly, the thesis introduces the current situation of cadastral data updating work inXuzhou, and points out the problems and solution methods in current cadastral dataupdating system. After analyzed and compared the character of multiple geographicspatio-temporal data model, we conclude that the oriented-object of spatio-temporaldata model is suitable to spatio-temporal data model for cadastral data updating. Basedon the analyzing and comparing the difference of spatio-temporal data model, wedesigned the cadatral database of logic structure and spatio-temporal data organizationmethod. And based on the cadastral data of spatio-temporal related relationship, wedesigned the cadastral data updating of spatio-temporal query mode. Then based on thefoundation of spatio-temporal topology analysis, the thesis introduces a new cadastraldatabase updating operator based on spatio-temporal cadastral entity change, andexplores the methods that the cadastral data updating automatic or semi-automaticrealizes. Finally, combining the cadastral data updating work of actual problem, wehave optimized and designed the workflow of cadastral database dynamic updating andbased the old system developed an experiment cadastral database updating systemwhich has been confirmed to be an effective solution.