Downwash characteristics and analysis from a six‐rotor Unmanned Aerial Vehicle configured for plant protection

2022 ◽  
Author(s):  
Yang Shenghui ◽  
Xu Pingfan ◽  
Jiang Shijie ◽  
Zheng Yongjun
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Plant Protection ◽  
Aerial Vehicle

scholarly journals Theoretical studies of the movement of grain moth eggs infected with the trichogram dosing and scattering device of an unmanned aerial vehicle

2020 ◽  
pp. 27-35
Author(s):  
S. O. Maranda ◽  
V. V. Adamchuk
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Coefficient Of Friction ◽  
Particle Motion ◽  
Plant Protection ◽  
Theoretical Research ◽  
Test Material ◽  
Radius Of Curvature ◽  
Theoretical Studies ◽  
The Coefficient Of Friction ◽  
Aerial Vehicle

Annotation Purpose. Determination of the influence of parameters and modes of operation of the dosing and scattering device on the speed characteristics of the movement of grain moth eggs infected with trichogramma. Methods. Theoretical studies of the process of particle motion of the test material by the dosing and scattering device were performed using the basic laws of classical theoretical mechanics. Results. On the basis of the analysis of means for settlement of a trichogram the design of the dosing and scattering device of the unmanned aerial vehicle (UAV) for settlement of a trichogram is defined. According to the results of theoretical studies, it was concluded that in order to achieve high velocity characteristics of the trichogram movement, the length of the diffuser-deflector deflector, the radius of curvature of the deflector and the angle of the deflector sector must have parameters at which the trichogram will be minimally reduced. The material from which the dosing and dispensing device is made must have the lowest possible coefficient of friction. Conclusions 1. According to the results of theoretical research it is established that with increasing: the curvature of the deflector arc from 0.03 m to 0.09 m and the angle of the deflector sector 0° to 90°, the speed of the trichogram varies from 5 m/s to 3.5 m/s. 2. To increase the width of the capture when performing the technological operation of settling the trichogram, the angle of the deflector sector should be in the range of 45–90°. 3. When changing the coefficient of friction from 0.2 to 0.9, the velocity of the particle decreases from 4.61 m/s to 3.5 m/s. With an increase in the coefficient of friction in 2 times the speed decreases by 8%. Keywords: theory of material particle motion, dosing and scattering device, unmanned aerial vehicle, biological plant protection, trichogram settlement, settlement norm, capture width.

Online spraying quality assessment system of plant protection unmanned aerial vehicle based on Android client

2019 ◽  
Vol 166 ◽  
pp. 104938 ◽  
Author(s):  
Yang Xu ◽  
Xinyu Xue ◽  
Zhu Sun ◽  
Chun Chang ◽  
Wei Gu ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Unmanned Aerial Vehicle ◽  
Plant Protection ◽  
Assessment System ◽  
Aerial Vehicle

scholarly journals Review of agricultural spraying technologies for plant protection using unmanned aerial vehicle (UAV)

2021 ◽  
Vol 14 (1) ◽  
pp. 38-49
Author(s):  
Haibo Chen ◽  
◽  
Yubin Lan ◽  
Bradley K Fritz ◽  
W. Clint Hoffmann ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Plant Protection ◽  
Aerial Vehicle

scholarly journals Application performance of fuel-powered multi-rotor unmanned aerial vehicle in maize plant protection

2018 ◽  
Vol 1 (1) ◽  
pp. 36-39
Author(s):  
Haiyan Zhang ◽  
Yubin Lan ◽  
Tongyu Xu ◽  
Fenghua Yu
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Plant Protection ◽  
Maize Plant ◽  
Application Performance ◽  
Aerial Vehicle

scholarly journals PRACTICAL ASPECTS OF USE OF THE UNMANNED AERIAL VEHICLE AGRAS T16

2021 ◽  
pp. 152-167
Author(s):  
Oleksandr Kholodiuk
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Unmanned Aerial Vehicle ◽  
Vegetation Index ◽  
Plant Protection ◽  
Cognitive Activity ◽  
Theoretical Research ◽  
Flight Planning ◽  
Aerial Vehicles ◽  
Aerial Vehicle ◽  
Effective Use

Scientific and technological progress today allows the widespread use of modern technologies in agriculture in the planning and use of agricultural technologies. Such technologies are the use of unmanned aerial vehicles as well. Now they allow to collect information about the field, make an orthophoto of the field, monitor crops and its condition at different stages of plant development, perform cartography, monitor the normalized vegetation index, spray plant protection products to control pests and diseases or make a trichogram. The object of research in this article is the process of preparation, adjustment, planning of flight missions and the use of unmanned aerial vehicle AgrasT16 for spraying work sites. The aim of the research is the effective use of the Agras T16 drone from DJI by substantiating the main measures for the timeliness and correctness of its preparation for work, setting the specified operating parameters, planning missions and calculating its productivity. The objectives of the work: to analyze the existing research on the use of unmanned aerial vehicles in Ukraine for agricultural purposes; to establish design features of the drone; to find out the basic settings and flight planning; to establish the productivity of the drone on spraying and to substantiate measures and ways of its effective use. The methods of research include the method of cognitive activity and methods of analysis and synthesis of both information from official sources and information from the works of other researchers. The scientific work deals with the different design and technical features of the Agras T16 hexacopter from the previous generation models. The practical aspects of its use in spraying, preparation for work, adjustment, selection of the necessary mode of operation, planning of fields and flight missions by means of the remote control and work with the charging station have been substantiated. The main features of different modes of its operation Manual Operation, Manual Plus, A-B Route Operation, Route Operation, which will allow you to solve various tasks have been highlighted. Particular attention has been paid to the methods of field flight planning (routes) of the drone, setting up the spray system, calibration of the compass and nozzles. According to the results of theoretical research, the productivity of the drone per hour of variable time has been established, which amounted to 8.8 ha/h. The measures to reduce unproductive time spent when spraying Agras T16 work areas have been substantiated.

scholarly journals An effective spray drift-reducing method for a plant-protection unmanned aerial vehicle

2019 ◽  
Vol 12 (5) ◽  
pp. 14-20
Author(s):  
Yayong Chen ◽  
◽  
Chaojun Hou ◽  
Yu Tang ◽  
Jiajun Zhuang ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Plant Protection ◽  
Spray Drift ◽  
Aerial Vehicle
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