Research Status of Harvesting Machines for Medicinal Flowers

Wang, Rongyan; Zhou, Zheng; Zhu, Guangfei; Gao, Lei; Cui, Baocong

doi:10.13031/aim.201901432

Cited by 3 publications

(5 citation statements)

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“…Ten Camellia oleifera trees were randomly selected and 10 flower bud were labeled for collection. Three sets of 10 × 10 collection results were recorded [17][18][19][20]. Using the high-speed microscope camera of the Canadian Norpix brand FR Stream 3F model, videos of Camellia oleifera flower bud in pipelines were captured and transported using the complete pipeline as the basis for successful collection.…”

Section: Methodsmentioning

confidence: 99%

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The Application of Rotary Twist Collecting Actuator Systems for Camellia oleifera Flower Bud Collection

Zhao,

Li,

Yang

2024

Processes

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Pollen transmission of Camellia oleifera is affected by climate and environment, and the quality of natural pollination is not high, which seriously affects the yield of Camellia oleifera. Artificial pollination is an effective way to solve the low fruit setting rate of natural pollination, but the problem to be solved urgently in artificial pollination is the collection of a large amount of pollen. At present, there is no mechanized equipment for Camellia oleifera flower bud collection, so developing an efficient pollen collection device has become a key problem that restricts the high-quality development of Camellia oleifera. In this paper, on the basis of measuring the tensile force, the shearing force, and the torsional moment required to remove Camellia Oleifera flower bud from the branch, which are 8.968 N, 13.94 N, and 0.0178 N·m, respectively, three types of Camellia oleifera flower bud collecting actuators were designed. According to the results of parameter design, feasibility analysis, and dynamic simulation, the power parameters of three types of Camellia oleifera flower bud collecting actuators were obtained. The experiment of collecting Camellia oleifera flower bud was designed, and the collection time, collection rate, and bud breakage rate of the three collecting actuators were compared. The experimental results show that the collection time of the rotary twist-type collecting actuator was 1.57 s, the collection rate was 91%, and the breakage rate was 4.9%, which can realize the efficient and low-loss collection of Camellia oleifera flowers bud, providing a theoretical basis for subsequent research on a Camellia oleifera flower bud collection robot.

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Section: Methodsmentioning

confidence: 99%

“…Ten Camellia oleifera trees were randomly selected and 10 flower bud were labeled for collection. Three sets of 10 × 10 collection results were recorded [17][18][19][20].…”

Section: Methodsmentioning

confidence: 99%

The Application of Rotary Twist Collecting Actuator Systems for Camellia oleifera Flower Bud Collection

Zhao,

Li,

Yang

2024

Processes

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“…At the time of contact, the friction roller cut surface is a uniform thin disc shape according to the rotational moment of inertia formula (15), which can be used to obtain the rotational moment M 1 .…”

Section: Force Analysis Of Camellia Oleifera Flower Pickingmentioning

confidence: 99%

“…There are many types of machines, but none of them can harvest Camellia oleifera flowers effectively. Although there have been great breakthroughs in the research of flower harvesting machines, there is still no flower harvesting machine for the Camellia oleifera flower type [15][16][17]. In this paper, we analyze the inherent characteristics of Camellia oleifera flowers and their picking methods, design a harvesting actuator that can pick Camellia oleifera flowers, and conduct field tests.…”

Section: Introductionmentioning

confidence: 99%

Design and Research of a Harvesting Actuator for Camellia oleifera Flowers during the Budding Period

Zhao

et al. 2022

Agriculture

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The collection of Camellia oleifera flowers is a key foundation of Camellia oleifera flower pollen extraction. Due to the current problems of low efficiency, high labor intensity and the high cost of manual collection of Camellia oleifera flowers, a harvesting actuator was designed. By analyzing the inherent characteristics of the Camellia oleifera flower and the harvesting method, a harvesting structure using a combination of friction roller twisting harvesting and pipeline pneumatic conveying was designed. The geometric model of the Camellia oleifera flower was established and the motion analysis of the flower was carried out, which indicated that the Camellia oleifera flower would tend to a stable state for easy picking after entering the actuator. Using Automatic Dynamic Analysis of Mechanical Systems 2015 software (ADAMS, MSC. Software Corporation, Santa Ana, CA, USA) to simulate the process of Camellia oleifera flower picking, a mechanical analysis was performed in the contact plane to prove the theoretical feasibility of friction roller picking these flowers, and the main influencing factor was obtained as the speed of the friction roller. The test prototype for Camellia oleifera flower picking was built, and the picking experiment was implemented to study the effect of motor speed on the picking time of single Camellia oleifera flowers and the effect of the success rate of the flower picking. The test results show that when the motor speed is 400 r/min, the picking success rate is 96%, the picking time of a single flower is 1.2 s, and the speed of the machine collection of Camellia oleifera flowers is 2.3 times that of manual collection, which proves the realistic feasibility of this picking actuator. This paper provides an important reference and basis for the research and development of a flower harvesting actuator.

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“…It is difficult to realize mechanized harvesting of safflower due to the characteristics of safflower blooming in multiple batches, different stalk heights and uneven distribution of flower bulbs (Cao et al, 2018;Azimi et al, 2012). Safflower picking robots can not only improve agricultural productivity, reduce operating costs and solve the problem of an inadequate workforce, but also change the agricultural production model to realize the scale, diversification and precision of agricultural production (Wang et al, 2019;Judd & Knasinski, 1990). Therefore, the study of safflower picking robots is important for the automatic harvesting of safflower in fields and upgrading the safflower industry.…”

Section: Introductionmentioning

confidence: 99%

Design of a Control System for a Safflower Picking Robot and Research on Multisensor Fusion Positioning

et al. 2023

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This paper discusses the design of a safflower picking robot control system and focuses on a navigation control subsystem based on multisensor fusion. A navigation subsystem, an identification and positioning subsystem, a picking subsystem, and a levelling subsystem are designed. The hardware and software of the navigation subsystem are designed in detail, and a multisensor fusion positioning method based on extended Kalman fusion technology is proposed. The accuracy and stability levels of different combined navigation methods are compared. To test the effectiveness and accuracy of the proposed method, an outdoor test is carried out. The test results show that the outdoor fusion positioning accuracy of the robot is less than 8 cm, and when the satellite signal is lost, the navigation control subsystem can still provide high positioning accuracy. The final positioning result obtained using the integrated positioning method of the wheel odometer + IMU + DGNSS is approximately 52% higher than that of the odometer, approximately 29% higher than that of the wheel odometer + IMU, and approximately 11% higher than that of the IMU + DGNSS.

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Research Status of Harvesting Machines for Medicinal Flowers

Cited by 3 publications

References 0 publications

The Application of Rotary Twist Collecting Actuator Systems for Camellia oleifera Flower Bud Collection

The Application of Rotary Twist Collecting Actuator Systems for Camellia oleifera Flower Bud Collection

Design and Research of a Harvesting Actuator for Camellia oleifera Flowers during the Budding Period

Design of a Control System for a Safflower Picking Robot and Research on Multisensor Fusion Positioning

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