Adaptive method of rice direct seeding unit based on Beidou and realization method of variable row spacing

Abstract

The invention discloses a Beidou-based self-adaptive method for rice direct seeding units. A control device, a display device and an RTK mobile station are arranged on the tractor body, and Beidou GNSS antenna A and Beidou GNSS antenna B are installed on the live broadcast machine. After the dual antenna position information is processed, the leveling valve group controls the leveling oil cylinder action to realize the leveling control of the live broadcast machine, and at the same time, the lifting valve group controls the lifting cylinder action to realize the operation control of the live broadcast machine close to the water surface, and realize the self-adaptive ground of the live broadcast machine Function, the displacement sensor of the leveling cylinder and the angular displacement sensor of the lifting arm are fed back to the control device to form a closed-loop feedback. The invention also discloses a Beidou-based method for realizing variable row spacing of rice direct seeding units, the steps of which include inputting information, setting actual sowing rows, calculating reciprocating times of sowing, calculating tractor walking tracks, and planning and navigating walking paths. The invention is less affected by the harsh environment of the paddy field operation, can flexibly change the line spacing, and has an self-adaptive function.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a Beidou-based self-adapting method for a rice direct seeding unit and a method for realizing variable row spacing. Background technique [0002] At present, most of the rice production uses machine transplanting. This production method has high production cost and many and complicated production links in the process of raising seedlings. In some southern regions, the method of directly sowing budded rice seeds into paddy fields one month in advance has been adopted to reduce production costs and improve operational efficiency. However, the direct seeding of rice has higher requirements and greater difficulty. The basic requirements are: rice seeds should preferably be buried 1-2 cm to improve the survival rate. [0003] At present, the rice seeding machine is pulled by the tractor's three-point suspension, and the height of the seeding machine is controlled by th...

AI Technical Summary

Problems solved by technology

[0004] Patent ZL201920760121.4 discloses an automatic control device for a large-scale rice direct seeding operation unit. The control device uses a float sensor to automatically control the lifting of the operation unit, which can ensure that the operation unit is close to the surface of the paddy field. However, the operating environment of the paddy field is harsh , once the float sensor fails, the entire live broadcast unit will be paralyzed

In addition, at present, there is basically a wide-format live broadcast broadcasting method that only corresponds to one line spacing, and cannot flexibly perform live broadcast with variable line spacing. When the requirements for live broadcast line spacing change, it is necessary to replace the corresponding model of live broadcast machine, which is not only cumbersome to operate, The purchase cost of the live broadcast machine is also relatively high

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