MEASURING DATA PROCESSING APPARATUS FOR CONFIRMING POINT TO POINT ROUTE CHANGE BY USING GPS INFORMATION

摘要

PURPOSE: A geodetic survey data processing device for confirming the existence of changes in a passage between two spots using GPS information is provided to prevent the generation of errors which is not able to be confirmed by photographs of aerial images. CONSTITUTION: A geodetic survey data processing device for confirming the existence of changes in a passage between two spots using GPS information comprises a housing unit, a tripod, a GPS receiver, an advertising balloon(300), and a sign(400). An air pump(800) is fixed to the bottom surface of the housing unit. A pressure sensor is installed in an outlet of the air pump so that the air pressure being supplied to the advertising balloon is automatically controlled. A flexible hose(810) is connected to the outlet of the air pump and a supplying cap(820) of the advertising balloon. At least two exhaustion caps(830) are arranged in the advertising balloon.