Beidou-based rice direct seeding unit self-adaption method and variable row spacing implementation method

Abstract

The invention discloses a Beidou-based rice direct seeding unit self-adaption method. The method comprises the following steps of arranging a control device, a display device and an RTK mobile station on a tractor body, wherein a Beidou GNSS antenna A and a Beidou GNSS antenna B are installed on a direct seeding machine, the control device processes the received double-antenna position information and then controls a leveling oil cylinder to act through a leveling valve set to achieve leveling control over the direct sowing machine, meanwhile, a lifting oil cylinder is controlled through a lifting valve set to act to achieve operation control over the direct sowing machine close to the water surface, the ground self-adaption function of the direct sowing machine is achieved, a leveling oil cylinder displacement sensor and a lifting arm angular displacement sensor are fed back to the control device to form closed-loop feedback, the invention also discloses a beidou-based rice direct seeding unit variable row spacing implementation method, and the method comprises the following steps of inputting information, setting an actual seeding row, calculating a seeding reciprocating frequency, calculating a tractor travelling track line, planning and navigating a travelling path. The Beidou-based rice direct seeding unit self-adaption method and the variable row spacing implementation method are slightly influenced by severe environment of paddy field operation, can flexibly change row spacing, and has the self-adaptive function.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a Beidou-based self-adaptive method for rice direct seeding units and a method for realizing variable row spacing. Background technique [0002] At present, most rice production adopts machine-transplanted seedlings. The production cost of this production method is high, and the production links are many and complicated. In some southern regions, the method of directly sowing sprouted rice seeds into paddy fields one month in advance has been adopted to reduce production costs and improve operational efficiency. However, direct seeding of rice has higher requirements and is more difficult. The basic requirement is that rice seeds should be buried 1 to 2 cm to increase the survival rate. [0003] At present, the rice direct seeding machine is drawn by a three-point suspension of the tractor, and the height of the direct seeding machine is controlled by the lifting ...

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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