Development of a precision 3-row synchronised transplanter

Ruiz, Manuel Pérez; Slaughter, David C.

doi:10.1016/j.biosystemseng.2021.03.014

Cited by 13 publications

(6 citation statements)

References 23 publications

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“…Since there were no moving parts in this direction, the acceleration change tended to be a horizontal line. However, due to high-frequency vibration signals generated during machine operation, the acceleration range was between −1.37 m/s 2 Figure 10 shows the graph of acceleration versus time in the triaxial direction of the end-effector. When the triaxial acceleration sensor detects that the acceleration was greater than 1 m/s 2 , the date was recorded.…”

Section: Experimental Results and Analysismentioning

confidence: 99%

“…With the increase in the planting amount and the rise in labor costs, more and more mechanical transplanting machines are adopted. Automatic tray seedling transplanting machines can effectively solve the problems of labor shortage and low operation efficiency and are widely recognized in different countries as the main trend and direction of crop seedling transplanting mechanization development [1,2]. The seedling pick-up device is the core component of the automatic transplanting machine, so researching a high-speed seedling pick-up device with a reasonable structure and stable performance is of great significance for promoting the development of the Chinese vegetable industry [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Design and Experiment of Dual-Row Seedling Pick-Up Device for High-Speed Automatic Transplanting Machine

Yue,

Yao,

Zhang

et al. 2024

Agriculture

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To address the inefficiency and instability of automatic transplanting machines, a dual-row seedling pick-up device and its corresponding control system were developed. Existing seedling end-effectors are primarily mechanically controlled, and the seedling needles can easily cause damage to the interior of the bowl. In order to reduce the damage inflicted by the end-effectors to the bowl, this paper conducted a mechanical analysis of the end-effector. At the same time, a buffer optimization analysis was conducted on the operation of the end-effector, and a flexible pneumatic end-effector for seedling picking was designed. The control system combined the detection of multiple sensors to monitor the process of seedling picking and throwing. By coordinating the lifting cylinder and clamping cylinder, the system effectively reduced seedling pot damage while improving seedling picking efficiency. By setting the operating parameters of the servo motor, the goal of low-speed and high-efficiency seedling picking was achieved. To evaluate the performance of the control system, the linear displacement sensors and acceleration testing systems were used to analyze the performance of the seedling throwing. The results showed that the seedling picking efficiency could reach 180 plants min−1, with no significant difference between the actual measured moving distance and the theoretical setting distance. The positioning error remained stable between 0.5 and 0.9 mm, which met the requirements for seedling picking accuracy. The buffer optimization design reduced the peak acceleration of the end-effector from −22.1 m/s2 to −13.4 m/s2, and the peak value was reduced by 39.4%, which proved the significant effectiveness of the buffer design. A performance test was conducted using 128-hole seed trays and 33-day-old cabbage seedlings for seedling picking and throwing. When the planting frequency reached 90 plants/row·min−1, the average success rate of picking and throwing seedlings was 97.3%. This indicates that the various components of the designed seedling pick-up device work in good coordination during operation, and the control system operates stably. Technical requirements for the automatic mechanical transplanting of tray seedlings were achieved, which can provide reference for research on automatic transplanting machines.

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Section: Experimental Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Dual-Row Seedling Pick-Up Device for High-Speed Automatic Transplanting Machine

Yue,

Yao,

Zhang

et al. 2024

Agriculture

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“…Additionally, maintaining the ideal plant-to-plant spacing boosts crop yield [21][22][23][24][25][26]. Plant spacing and crop yield have a well-established relationship [27][28][29]. For numerous crops, row plant spacing is influenced just as significantly by the crop's specific biological spacing demands as it is by the structural design of the agricultural machines utilized [30].…”

Section: Introductionmentioning

confidence: 99%

Design and Validation of a Variable-Rate Control Metering Mechanism and Smart Monitoring System for a High-Precision Sugarcane Transplanter

Elwakeel,

Mazrou,

Eissa

et al. 2023

Agriculture

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The current study aimed to design and test the accuracy of a variable-rate control metering mechanism (VRCMM) and a remote smart monitoring system (RSMS) for a precision sugarcane transplanter based on IoT technology. The VRCMM is used to operate the seedling metering device at different speeds using a stepper motor based on the travel speed, and the RSMS was employed to evaluate of the three basic parameters of seedling amount, optimum rate, and missed rate. Two types of sensors were used for detecting the sugarcane seedling (SS) and travel speed, including one ultrasonic sensor and one infrared RPM sensor. The study was performed at five travel speeds and four transplant spacings. The findings of laboratory tests showed that the mean record of the relative error between the desired stepper motor speed of the VRCMM and the real value was 3.39%, and it increased with increasing the travel speed. as Additionally, the speed regulation performance was in agreement with the transplanting index. The change in RSMS accuracy is obvious when the travel speed is high and the transplant spacing is small. The RSMS accuracy drops sharply, revealing a leaping change. In conclusion, the smart and intelligent designed sugarcane transplanter would be very useful in sugarcane production.

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“…Sweet potato is an important raw material for food and starch industries and new energy raw materials in the world [1][2][3][4][5].Transplanting and harvesting of sweet potato production is involved with the largest labor and operating costs, and there is an urgent need to achieve mechanization and intelligence [6][7][8][9][10].The United States, Italy and other countries mostly use efficient chain clamp transplanters that can perform multi-row transplanting at the same time, but only in direct planting mode [11][12][13].Japan has developed a sweet potato transplanter that uses a four-bar linkage to achieve oblique seedling planting, which has received widespread appreciation [14]. Multifunctional vegetable transplanters are still used as sweet potato transplanting machines in most parts of China, primarily for direct transplanting [15].There are two major issues with current sweet potato transplanting: 1.Mechanized sweet potato transplanters are in short supply.…”

Section: Introductionmentioning

confidence: 99%

Trajectory Control of Two-Degree-of-Freedom Sweet Potato Transplanting Robot Arm

Liu

Zheng

et al. 2022

IEEE Access

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Development of a precision 3-row synchronised transplanter

Cited by 13 publications

References 23 publications

Design and Experiment of Dual-Row Seedling Pick-Up Device for High-Speed Automatic Transplanting Machine

Design and Experiment of Dual-Row Seedling Pick-Up Device for High-Speed Automatic Transplanting Machine

Design and Validation of a Variable-Rate Control Metering Mechanism and Smart Monitoring System for a High-Precision Sugarcane Transplanter

Trajectory Control of Two-Degree-of-Freedom Sweet Potato Transplanting Robot Arm

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