Lodged Sugarcane/Crop Dividers Interaction: Analysis of Robotic Sugarcane Harvester in Agriculture via a Rigid-Flexible Coupled Simulation Method

Wang, Qingqing; Zhang, Qianwei; Yin, Zhiyong; Zhou, Guoan; Li, Zhiqiang; Chen, Liqing

doi:10.3390/act11010023

Cited by 9 publications

(4 citation statements)

References 24 publications

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“…The rotation angle of the triangular support around point F is set as a percentage of travel: set as 0% when the rotary tiller is at the lower limit position and set as 100% when it is at the upper limit position. The vertical height H of the rotary cutter shaft relative to the ground is measured and recorded every 5% of the stroke when the cutter rises from the lower limit position [22,23] .…”

Section: Automatic Detection Model Of Tillage Depthmentioning

confidence: 99%

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Xiao,

Ma,

Wang

et al. 2023

International Journal of Agricultural and Biological Engineering

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The research on the self-propelled electric tiller is vital for further improving the quality and efficiency of greenhouse rotary tillage operation, reducing the work intensity and operation risk of operators, and achieving environmentally friendly characteristics. Most of the existing self-propelled tillers rely on manual adjustment of the tillage depth. Moreover, the consistency and stability of the tillage depth are difficult to guarantee. In this study, the automatic control method of tillage depth of a self-propelled electric tiller is investigated. A method of applying the fuzzy PID (Proportional Integral Derivative) control method to the tillage depth adjustment system of a tiller is also proposed to realize automatic control. The system uses the real-time detection of the resistance sensor and angle sensor. The controller runs the electronically controlled hydraulic system to adjust the force and position comprehensively. The fuzzy control algorithm is used in the operation error control to realize the double-parameter control of the tillage depth. The simulation and experimental verification of the system are conducted. Results show that the control system applying fuzzy PID can improve the soil breaking rate by 3% in the operation process based on reducing the stability variation of tillage depth by 24%. The control strategy can reach the set value of tillage depth quickly and accurately. It can also meet the requirement of tillage depth consistency during the operation.

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Section: Automatic Detection Model Of Tillage Depthmentioning

confidence: 99%

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Xiao,

Ma,

Wang

et al. 2023

International Journal of Agricultural and Biological Engineering

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“…In China, most sugarcane is planted on hills and slopes. Because it is affected by the monsoon and typhoon climate, a large amount of sugarcane lodges and bends, which severely limits the efficiency of mechanical harvesting [10].…”

Section: Introductionmentioning

confidence: 99%

The Lifting Performance and Experimental Study of a Variable Spiral Spike-Toothed Crop Divider

Bai,

Ma,

Cheng

2024

Agriculture

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The contact between a traditional crop divider and sugarcane is unstable, and the sugarcane easily slides off of its surface. By analyzing the movement process of sugarcane, the influence of traditional spiral flightings on lifting performance was studied, and shortcomings were also found. Based on previous research and analysis, the variable spiral spike-toothed crop divider was designed by research groups. For sugarcane with different lodging states, the contact separation rule between the sugarcane and the spike tooth was studied, and the action time and angle of the spike tooth on sugarcane were obtained. At the same time, the interaction mechanism between sugarcane and the spike tooth was analyzed, and the conditions for lodged canes to be lifted were obtained. The influence of the spike tooth on the lifting performance was explored, and the working advantages were found for the spike-toothed crop divider. Then, a simulation test was conducted to obtain the contact force between the sugarcane and the crop divider. Finally, the crop divider was optimized and integrated into the harvester, and a field harvesting test was carried out to verify the working performance of the crop divider. This study was expected to provide a reference for the design of crop dividers and a theoretical basis for the analysis of the lifting process.

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“…In recent years, to improve the performance of crop divider, many scholars have studied the mechanical structure of crop divider. Most of the sugarcane harvesters on the market today still use spiral crop divider 7 . In field experiments, the effects of different lodging angles, lodging side angles, and sugarcane stem and leaf entanglement on the lifting and lowering performance of crop divider were studied 8 .…”

Section: Introductionmentioning

confidence: 99%

Height detection of crop divider toes of sugarcane harvester based on Kalman adaptive adjustment

Wen,

Yan,

et al. 2023

Sci Rep

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Crop divider toes are an essential device of sugarcane harvester. Moving forward against the ground is a critical way to improve the harvesting rate of lodged sugarcane. Height detection is the basis for precise control of crop divider toes moving forward against the ground. Due to the current problem of operating difficulties in manually adjusting the height of crop divider, a height detection system based on a millimeter wave radar sensor was designed to detect the height of crop divider toes from the ground. This paper proposed a height detection method of crop divider toes for sugarcane harvester based on Kalman adaptive adjustment. The data measured by the sensor was pretreated to determine whether the height had changed. Reset the Kalman filter and adjust the parameters when changes occur to improve the filter response speed and ranging accuracy. To adapt to the scenario of quickly adjusting the height of crop divider during the traveling process of sugarcane harvester. A one-way ANOVA test and a two-way ANOVA test were conducted on a simulated test platform. The results of the one-way ANOVA test showed that both forward speed and vegetation cover thickness had a significant effect on height detection accuracy. The results of the two-way ANOVA test showed that the interaction of forward speed and vegetation cover thickness did not have a significant effect on ranging accuracy. It was verified through experiments that both the ranging accuracy and the response speed of height change were significantly improved after the processing of the method in this paper. The mean square error after processing was lower than 2.5 cm. The feasibility of the height detection system was verified by field trials. The results of this study will provide a reference for the design of automatic elevation of crop divider.

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Lodged Sugarcane/Crop Dividers Interaction: Analysis of Robotic Sugarcane Harvester in Agriculture via a Rigid-Flexible Coupled Simulation Method

Cited by 9 publications

References 24 publications

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

The Lifting Performance and Experimental Study of a Variable Spiral Spike-Toothed Crop Divider

Height detection of crop divider toes of sugarcane harvester based on Kalman adaptive adjustment

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