TOPOGRAPHY MEASUREMENT DATA UPDATE SYSTEM FOR REFLECTING CHANGE OF POSITIONS IN GPS

摘要

PURPOSE: A geodetic measurement data update processing system for topographical structural change confirmation for a GPS location coordinate is provided to reduce measurement information collecting expenses necessary for existing numeric map modification and to respond to frequent modification requests, thereby always maintaining accuracy. CONSTITUTION: A numeric information collection center(10) includes the following: A numeric information database comprises numeric information composing a suggested numeric map. A collection information database maintains GPS 3D location information corresponding to each point delivered from transmission points(20). The collection information database obtains and maintains index standard GPS 3D location information. [Reference numerals] (12) Communication unit; (16) Input device; (40) Communication network; (AA) Numeric information DB; (BB) Collection information DB; (CC) Correction program; (DD) Image processing program