Performance Evaluation of Path Planning and Coordination Algorithms for Multiple UGVs in Smart Farm

Jo, Yuseung; Son, Hyoung Il

doi:10.1007/s42853-022-00157-7

Cited by 4 publications

(7 citation statements)

References 22 publications

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“…Other research topics for increasing the efectiveness of spray processes have been proposed such as collaborative work, which includes human-robot cooperation [42,43], multi-UAV [44,45], multi-UGV [46], or even hybrid team of UAVs and UGVs [47][48][49], which include the new communication technologies [50,51].…”

Section: Related Workmentioning

confidence: 99%

Determination of Flight Parameters of a Sprayer UAV According to the Disease in Corn Crops at the Reproductive Stage

Vaca

Lúa

Pérez-Cruz

et al. 2023

Mathematical Problems in Engineering

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Despite the increasing use of unmanned aerial vehicles (UAVs) for pest control, there are still possibilities to optimize the spraying process by selecting the flight parameters of the operations involved, such as flight speed and height, according to the penetration of droplets that is sought to have in the corn plant. In this research, the flight parameters that the operators should select according to the type of disease they treat in corn crops were determined. To achieve this, first, a survey of the main diseases that attack corn crops in the region was carried out along with their location in the plant. Subsequently, flight tests were carried out selecting speeds of 2.80, 4.75, and 5.97 m/s and heights of 2.00, 2.75, and 3.50 m. The plants’ cover rates at the three different heights (top, middle, and bottom) were collected by hydrosensitive strips and scanned by the SnapCard scanning software. The use of statistical techniques allowed understanding the impact that flight parameters had on the coverage rate and droplet penetration: the higher the speed, the lower the coverage rate in the upper part of the plant and the higher the coverage rate in the lower part. On the other hand, the lower the height, the higher the coverage rate and droplet penetration.

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Section: Related Workmentioning

confidence: 99%

Determination of Flight Parameters of a Sprayer UAV According to the Disease in Corn Crops at the Reproductive Stage

Vaca

Lúa

Pérez-Cruz

et al. 2023

Mathematical Problems in Engineering

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“…In a fully automatic vegetable transplanter, the seedlings are supplied and loaded into the seedling cylinder automatically. On the other hand, in a semiautomatic vegetable transplanter, the operator manually provides and positions the seedlings within the seedling cylinder, requiring human involvement in the seedling handling process [4,5]. The transplanting device is the main part of a vegetable transplanter, tasked with planting seedlings into the soil.…”

Section: Introductionmentioning

confidence: 99%

Stress Simulation on Four-Bar Link-Type Transplanting Device of Semiautomatic Vegetable Transplanter

Markumningsih,

Hwang,

Kim

et al. 2023

Agriculture

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The aim of this study is to analyze the stress exerted on a four-bar link-type transplanting device using two distinct methods: stress measurement performed during a field test and stress simulation. A field test is conducted to measure stress using a strain gauge positioned at 15 specific points on the transplanting device. Subsequently, the measured strain data are converted into calculated stress data. In another method, stress is simulated using specialized multibody dynamic simulation software. The simulation results are compared with the stress measured during field tests to verify the simulation model. Based on the results, the maximum stress derived from the simulation correlates with the measured results, although notable discrepancies are shown, particularly at strain gauge positions 11 and 13. The maximum stress derived from the simulation is used to calculate the static safety factor of the transplanting device. The peak stress derived from the simulation aligns with the measured results, although significant discrepancies are observed at positions corresponding to strain gauges 4 and 10. The maximum stress (150.82 MPa) is observed on the link of the transplanting device, and the static safety factor determined via the simulation is 1.39.

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“…In the past, the manufacturing and use of transplanting machines inevitably required manual labor and experience. Improper use could cause damage and death to plants, while also increasing labor costs and production risks [4,5]. Plant transplantation is a vital link in the production process of plant factories [6][7][8], thus it is crucial to establish a transplanting machine model suitable for the operating environment of plant factories in order to optimize costs and increase efficiency in the planting process.…”

Section: Introductionmentioning

confidence: 99%

Digital Twins in Plant Factory: A Five-Dimensional Modeling Method for Plant Factory Transplanter Digital Twins

et al. 2023

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To address challenges such as the complex correlations among multiple parameters during the modeling process of plant factory transplanters, the large differences between simulations and actual models, and the difficulties in data acquisition and processing, this paper proposes the concept of a Plant Factory Transplanter (PFT) digital twin five-dimensional model based on research of plant factory transplanters. The PFT digital twin five-dimensional model builds on traditional 3D modeling and includes physical entities, virtual models, services, twin data, and connecting interactions. This study delves deeply into the connotations and construction methods of the PFT five-dimensional model from the five aspects of PFT physical entity, virtual entity, services, twin data, and connections, and illustrates the implementation steps and effects of each link. Finally, practical examples of the application of the PFT digital twin five-dimensional model are presented in actual scenarios. The five-dimensional modeling approach for plant factory transplanters based on digital twins can monitor the working status of transplanters online and evaluate the effectiveness of transplantation. This method overcomes problems such as poor adaptability and difficulty in updating physical models, thus improving the efficiency of monitoring and optimizing configuration parameters. Moreover, the generated virtual entities are more intuitively reflected in the control interface, significantly reducing the reliance of equipment operators on relevant professional skills. In the future, the proposed digital twin five-dimensional model is expected to be further refined and optimized, with creation tools and application scenarios studied. Application research will also be conducted to meet different application requirements.

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Performance Evaluation of Path Planning and Coordination Algorithms for Multiple UGVs in Smart Farm

Cited by 4 publications

References 22 publications

Determination of Flight Parameters of a Sprayer UAV According to the Disease in Corn Crops at the Reproductive Stage

Determination of Flight Parameters of a Sprayer UAV According to the Disease in Corn Crops at the Reproductive Stage

Stress Simulation on Four-Bar Link-Type Transplanting Device of Semiautomatic Vegetable Transplanter

Digital Twins in Plant Factory: A Five-Dimensional Modeling Method for Plant Factory Transplanter Digital Twins

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