Design and experiment of the beating-leveler controlled by laser for paddy field

ZHOU Hao; HU Lian; LUO Xiwen; TANG Lingmao; DU Pan; ZHAO Runmao

doi:10.7671/j.issn.1001-411X.201905071

Journal of South China Agricultural University > 2019 > 40(5): 23-27. > DOI: 10.7671/j.issn.1001-411X.201905071

ZHOU Hao, HU Lian, LUO Xiwen, et al. Design and experiment of the beating-leveler controlled by laser for paddy field[J]. Journal of South China Agricultural University, 2019, 40(5): 23-27. DOI: 10.7671/j.issn.1001-411X.201905071

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Design and experiment of the beating-leveler controlled by laser for paddy field

College of Engineering, South China Agricultural University/Ministry of Education, Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, Guangzhou 510642, China

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Received Date: May 30, 2019
Available Online: May 17, 2023

Graphical Abstract

Abstract

Abstract

Objective
To meet the requirement of field flatness in rice planting, reduce the number of times that tractors enter the field, improve the effect and quality of beating and leveling, and realize beating and leveling through one field entry.

Method
A beating-leveler was developed using the principle of beating followed with leveling. The beating machine, automatic leveling mechanism and automatic elevation adjusting mechanism were developed. Field experiments were performed using the laser-controlled leveling system integrated with automatic leveling function. The roll angles of the tractor and the beating-leveler were respectively measured using two attitude and heading reference systems (AHRS). Field flatness before and after leveling operation was measured using a balance level.

Result
The roll angle of the beating-leveler maintained within ±1°, while the roll angle of the tractor varied within ±4.5°, indicating that the automatic leveling system obviously improved the leveling stability of the beating-leveler in paddy field. The maximum height difference of the field surface reduced from 17.7 cm (before operation) to 6.7 cm (after operation). Its standard deviation reduced from 4.08 cm (before operation) to 1.75 cm (after operation). The percentage of sampling points with absolute difference of ≤ 3 cm increased from 62% (before operation) to 82% (after operation).

Conclusion
The laser-controlled beating-leveler can significantly enhance the flatness of the field surface.
- laser-control,
- beating-leveler,
- paddy field,
- surface flatness

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References (23)

References

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