| 摘要 |
The present invention relates to a numeric information renewal system which instantly corrects error numeric information. While moving to a site where a geographic feature needed to be renewed is located by a vehicle, the system precisely measures coordinate information with a GPS. At the same time, the system receives position information of a terminal provided by a mobile communications system, and renews a corresponding part of a numeric map with a coordinate value which calculates an arithmetic mean. Therefore, accuracy and reliability for the numeric map can be improved by instantly correcting an error of the coordinate information at low costs, and accuracy and reliability of the numeric map can be more improved through measuring coordinate information more precisely by horizontally maintaining a plurality of GPS antennas all the time. As having a horizontality control element, a disk portion where the GPS antennas are installed maintains the horizontality all the time. Accordingly, by making the GPS antennas installed in the disk portion always maintain the same height, the system can receive exact GPS information and manufacture an exact numeric map. |
