Land leveling method based on GNSS

Abstract

The invention provides a land leveling method based on GNSS (Global Navigation Satellite System). The method comprises the following steps: determining the general trend of a planned path through analyzing the terrain of the global planning of a target land parcel according to acquired terrain information and a terrain environment model of the target land parcel; then, carrying out local adjustment for avoiding the empty load and full load of ground leveling equipment through the calculation of excavation and filling earth volume based on the terrain environment model and the terrain information, namely, determining the target planned path of the traversing target parcel through the combination of the setting rule based on the calculation of the excavation and filling earth volume and thejudgment of empty/full load; and finally, guiding the ground leveling equipment to carry out target land parcel leveling operation according to the planned path. According to the method provided by the invention, through reasonable ground leveling path planning, the empty load, full load, repeated leveling and omissive leveling of the ground leveling equipment can be effectively avoided or reduced, the land leveling can be effectively guided, and thus the land leveling efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of farmland fine leveling in precision agriculture, and more specifically, to a GNSS-based land leveling method. Background technique [0002] Land leveling is an important link in land development and consolidation projects and agricultural water resources management. The original inclined and undulating ground is leveled into a level ground or a ground with a certain slope through equipment. Land leveling can effectively increase the effective arable land area, promote intensive use of land and large-scale management; it can facilitate mechanized farming, improve agricultural production conditions, and speed up the modernization process of agriculture; Water, improving soil quality, maintaining soil fertilizer, increasing production and income, and improving labor productivity play an important role. [0003] GNSS (Global Navigation Satellite System, GNSS) leveling technology obtains three-dimensi...

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Problems solved by technology

[0005] However, it is easy to have the problem of empty or full load of the shovel during the leveling operation.

Empty forklifts cause the system to have no soil to unload, and full loads cause the system to be in an ineffective working state where the system cannot dig soil. In this state, the terrain of the farmland that the tractor dr

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