Method for designing farmland leveling arbitrary slope reference plane

Abstract

The invention discloses a method for designing a farmland leveling arbitrary slope reference plane. The method mainly comprises the following steps: A, selecting a reference point, and designing an initial reference slope surface; B, measuring the farmland terrain to acquire practical farmland terrain data; C, calculating correction parameters to obtain a final reference slope plane design equation. According to the method, GNSS (Global Navigation Satellite System) differential positioning is utilized to acquire farmland terrain three-dimensional data, the reference plane with any three-dimensional slope direction and slope can be rapidly and conveniently designed according to three reference points, not only can a slopeless plane design can be achieved, but also a single longitudinal slope design can be achieved, and moreover any slope surface design in the two-dimensional direction can be achieved. The requirements on ground fine irrigation water flow direction can be flexibly met.

Description

technical field [0001] The invention relates to land leveling technology, in particular to a GNSS positioning-based design method for farmland land fine leveling with an arbitrary slope reference surface. Background technique [0002] With the development of my country's modern precision agriculture and the prominent contradiction between the supply and demand of agricultural water resources, improving surface irrigation technology has become an important part of modern agricultural water-saving technology. Improving the flatness of farmland can play a role in improving the efficiency and uniformity of field surface irrigation, and is one of the important technical elements for improving surface irrigation methods. At present, in terms of farmland leveling operations, there are mainly three methods of leveling, namely conventional leveling, laser control leveling and GNSS control leveling. [0003] The leveling equipment used in the conventional leveling method generally in...

AI Technical Summary

Problems solved by technology

[0006] At present, domestic research on GNSS control leveling technology has just started, and there are very few participating research units, and there is no mature equipment and technology

In the only few studies, the design of the reference plane can only simply realize the plane design and the design of a single longitudinal slope along the farmland, which does not have universal applicability and design flexibility.

Images