METHOD FOR OPERATING REAL-TIME UPDATING SYSTEM FOR DIGITAL MAP WITH INCREASED ACCURACY OF GPS LOCATION INFORMATION ABOUT OBJECTS ON GROUND

摘要

The present invention relates to a method for operating a real-time updating system for a digital map with increased accuracy of GPS location information about objects on ground. Coordinate information is precisely and actually measured by a GPS and, at the same time, location information of a terminal provided by a mobile communication system is received while a user moves to a site on which a landmark or a building to be updated is located by using a vehicle. A relevant portion of the digital map is updated with a coordinate value obtained by calculating an arithmetic average. Therefore, accuracy and reliability of the digital map can be increased by immediately correcting an error of the coordinate information at low costs. In addition, accuracy and reliability of the digital map can be increased even more as the coordinate information can be actually measured more precisely by maintaining a plurality of GPS antennas to be in a horizontal position all the time. The real-time updating system includes a horizontal control means so that a disk unit on which the GPS antennas are installed can maintain a horizontal position all the time. Accordingly, the GPS antennas, installed on the disk unit, can maintain the same height all the time. Therefore, the GPS information can be accurately received and an accurate digital map can be produced.;COPYRIGHT KIPO 2015