Development of Land Leveling Equipment Based on GNSS

An attitude adjustable land leveling equipment was designed. The reference elevation of the land to be leveled was generated based on the topographic data which was acquired by the RTK-GNSS technology. The blade lifting mechanism was controlled by comparing the reference elevation and the real-time blade's elevation and attitude data which was obtained by the dual antenna GNSS receiver and as a result the land leveling operation was implemented. A new algorithm using the electro-hydraulic proportional control technology which can control the blade's height accurately was also raised. The experiment shows that the GNSS land leveling equipment can have a good land leveling quality, and the efficiency of the land leveling operation could also be improved.