The application provides an intelligent leveling
system based on three GNSS coordinate cooperation and a measuring method thereof. The
system comprises an intelligent level gauge, a first intelligent leveling rod and a second intelligent leveling rod. All of them are provided with independent GNSS modules and can obtain three-dimensional coordinates in real time. The level gauge can obtain the front and rear
sight distances through coordinate inversion and calculate the
sight distance difference, and then send the
sight distance difference to the display screens of the two rods to guide the first rod to be in place. The leveling rod is provided with an inclination sensor, which can automatically switch among the three states of movement guidance, rod monitoring and righting recording according to the inclination angle, and automatically
record the three-dimensional coordinates to form an
electronic notebook at the righting moment. The leveling rod can be switched to an RTK
mobile station through one key, which is used for
layout and
recovery of buried leveling points and accurate
recovery of temporary leveling points the next day. When the leveling rod is righted for the first time after
station migration, the coordinates are automatically compared to realize the detection and tracing of the
centimeter-level error. The
system can synchronously collect the geodetic height and
normal height of each rod point, automatically calculate the height anomaly value and cumulatively form a local height anomaly model.