METHOD FOR REAL-TIME UPDATING GIS DATABASE USING CORRECTING GPS LOCATION INFORMATION

摘要

The present invention relates to a method for updating a real-time GIS database using GPS location information correction. More specifically, after selecting a specific reference point similar to the point to be surveyed and the environmental conditions, the coordinate value and the GPS measurement coordinate value of the selected specific reference point are selected. This method relates to a method of obtaining an error value, and using the error value to correct a GPS coordinate value of a point to be surveyed and updating the GIS database in real time.;GIS, GPS, Numeric Map, Reference Points, Calibration, Update