Development Status and Key Technologies of Plant Protection UAVs in China: A Review

Hu, Ping; Zhang, Ruirui; Yang, Jian; Chen, Liping

doi:10.3390/drones6110354

Cited by 25 publications

(24 citation statements)

References 30 publications

(32 reference statements)

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“…This matter caused the height of spraying to be slightly different among the palms. According to Hu et al, (2022), some features to consider in a drone sprayer include obstacle avoidance and terrain-following control technology. These technologies aim to improve the safety, reliability, and intelligence of drone operations as well as to maintain the crop canopy's relative height steady [8].…”

Section: Point-to-point Drone Sprayingmentioning

confidence: 99%

“…According to Hu et al, (2022), some features to consider in a drone sprayer include obstacle avoidance and terrain-following control technology. These technologies aim to improve the safety, reliability, and intelligence of drone operations as well as to maintain the crop canopy's relative height steady [8]. Preparation to install the RTK base to connect to the drone slightly taking a long time (10 -30 minutes) and the signal depends on the weather and geographical conditions.…”

Section: Point-to-point Drone Sprayingmentioning

confidence: 99%

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The use of unmanned aerial vehicle for controlling Oryctes rhinoceros beetle on Immature Oil Palm

Roudhiyah,

Saepuloh,

Wibowo

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Current constraints on labor supply and human error have triggered interest in using automated technology as an alternative to conventional operations. Hence, Minamas Plantation has embarked on an exploratory trial using unmanned aerial vehicles (UAV) in one of the labor-intensive works in the oil palm industry, which is the prophylactic fortnightly spraying of beetles on immature palms. The trial was conducted between October 2021 and January 2022 at PT Aneka Inti Persada. Three treatments, namely UAV, conventional, and no control, were investigated under two different environments (straight-line and terrace plantings). A randomized complete block design was adopted, with three replicates of immature oil palms planted in 2020. Prior to treatment implementation, all treated palms were georeferenced. The insecticide used was Cypermethrin (5.5% EC) at 20 ml/L of water. Insecticide application by point-to-point spraying was conducted for 4 seconds on each palm (250 ml solution/palm) at 0.5 – 1.5 m above the canopy. Knapsack spraying was performed as per estate practice. No significant difference in fresh damage was recorded between the UAV and knapsack spraying as compared to the control plots. Palms in control plots continued to be inflicted by beetles with more than 5% fresh damage throughout the trial period. The trial concluded that UAV technology has great potential for adoption in daily estate operations. The next step of the trial was to compare the cost-effectiveness between treatments. This study did not carry out the economic analysis due to the scale of the trial.

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Section: Point-to-point Drone Sprayingmentioning

confidence: 99%

Section: Point-to-point Drone Sprayingmentioning

confidence: 99%

The use of unmanned aerial vehicle for controlling Oryctes rhinoceros beetle on Immature Oil Palm

Roudhiyah,

Saepuloh,

Wibowo

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…25,26 In recent years, with the intensification of land development, increase in labor costs, and progress of unmanned aerial vehicle (UAV) technology, UAVs have been rapidly developed as an efficient method for plant protection. [27][28][29] Compared with conventional spraying, UAVs have faster flight speed (3-7 m s −1 ), higher application altitude (≥1.5 m), and smaller droplet sizes and distributions, so the spray droplets are easier to evaporate and drift. Additionally, the dilution ratios of pesticide formulations used in UAV plant protection are far (≤50-fold) lower than those of conventional sprays, 30,31 so higher requirements have been proposed for the pesticide formulations.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, with the intensification of land development, increase in labor costs, and progress of unmanned aerial vehicle (UAV) technology, UAVs have been rapidly developed as an efficient method for plant protection 27–29 . Compared with conventional spraying, UAVs have faster flight speed (3–7 m s −1 ), higher application altitude (≥1.5 m), and smaller droplet sizes and distributions, so the spray droplets are easier to evaporate and drift.…”

Section: Introductionmentioning

confidence: 99%

Enhanced dosage delivery of pesticide under unmanned aerial vehicle condition for peanut plant protection: tank‐mix adjuvants and formulation improvement

Sun,

Zhao,

et al. 2023

Pest Management Science

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BACKGROUNDSuspension concentrate (SC) is one of the most widely used formulations for agricultural plant protection. With the rapid development of unmanned aerial vehicle (UAV) plant protection, the problems of spray drift, droplet rebound and poor wettability in the application of SC from UAVs have attracted wide attention. Although some tank‐mix adjuvants have been used to enhance dosage delivery for UAV, their effects and mechanisms are not fully clear, and few formulations are specifically designed for UAV.RESULTSThe type and concentration of tank‐mix adjuvant affect the dosage delivery of SC. MO501 can significantly reduce DV<100μm, and inhibit droplet rebound on peanut leaves at concentrations ≥0.5%. Silwet 408 can achieve complete wetting and superspreading after adding ≥0.2% concentrations, but only ≥0.5% can inhibit rebound. XL‐70 shows excellent regulation ability even at low concentration, and 0.2% concentration can simultaneously suppress impact and promote spreading. Besides, the formulation oil dispersion (OD) can significantly reduce the driftable fine fraction and inhibit rebound at dilution ratios of ≤250‐fold, thus enhancing dosage delivery.CONCLUSIONSC is prone to rebound on hydrophobic leaf surfaces and shows poor wetting and spreading properties. Appropriate types and concentrations of tank‐mix adjuvants and formulation improvement are two effective strategies for improving the dosage delivery of pesticides, whereas the addition of inappropriate adjuvants may cause potential risks instead. These findings provide guidance for the rational selection of tank‐mix adjuvants and potential applications of OD for UAV plant protection. © 2023 Society of Chemical Industry.

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“…At present, unmanned aerial vehicles (UAVs) are primarily used for data gathering, remote sensing, and observation tasks in a variety of sectors, such as photography, logistics, telecommunications, agriculture, search and rescue, disaster management, infrastructure inspection, and entertainment [1][2][3][4][5][6]. They can provide safe operation in dangerous environments and enable access to remote locations, normally at low cost.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Performance Boundaries of a Small Reconfigurable Multi-Mission UAV through Multidisciplinary Analysis

Santos,

Rogers,

De Rezende

et al. 2023

Aerospace

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The performance of a small reconfigurable unmanned aerial vehicle (UAV) is evaluated, combining a multidisciplinary approach in the computational analysis of additive manufactured structures, fluid dynamics, and experiments. Reconfigurable UAVs promise cost savings and efficiency, without sacrificing performance, while demonstrating versatility to fulfill different mission profiles. The use of computational fluid dynamics (CFD) in UAV design produces higher accuracy aerodynamic data, which is particularly important for complex aircraft concepts such as blended wing bodies. To address challenges relating to anisotropic materials, the Tsai–Wu failure criterion is applied to the structural analysis, using CFD solutions as load inputs. Aerodynamic performance results show the low-speed variant attains an endurance of 1 h, 48 min, whereas its high-speed counterpart is 29 min at a 66.7% higher cruise speed. Each variant serves different aspects of small UAS deployment, with low speed envisioned for high-endurance surveying, and high speed for long-range or time-critical missions such as delivery. The experimental and simulation results suggest room for design iteration, in wing area and geometry adjustments. Structural simulations demonstrated the need for airframe improvements to the low-speed configuration. This paper highlights the potential of reconfigurable UAVs to be useful across multiple industries, advocating for further research and design improvements.

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Development Status and Key Technologies of Plant Protection UAVs in China: A Review

Cited by 25 publications

References 30 publications

The use of unmanned aerial vehicle for controlling Oryctes rhinoceros beetle on Immature Oil Palm

The use of unmanned aerial vehicle for controlling Oryctes rhinoceros beetle on Immature Oil Palm

Enhanced dosage delivery of pesticide under unmanned aerial vehicle condition for peanut plant protection: tank‐mix adjuvants and formulation improvement

Exploring the Performance Boundaries of a Small Reconfigurable Multi-Mission UAV through Multidisciplinary Analysis

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