scholarly journals Application of Agricultural Unmanned Aerial Vehicle for Processing Agricultural Crops

2021 ◽  
Vol 19 (3) ◽  
pp. 4-11
Author(s):  
D. V. Kudryavtsev ◽  
◽  
A. G. Magdin ◽  
A. D. Pripadchev ◽  
A. A. Gorbunov
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Electronic Computer ◽  
Vertical Direction ◽  
Main Role ◽  
Agricultural Crops ◽  
Chemical Reagents ◽  
System A ◽  
Aerial Vehicle ◽  
The Moment ◽  
Control And Management

The paper considers a new method of processing all the necessary surfaces of crops through the use of an unmanned aerial vehicle (UAV). At the moment, the processing of all surfaces of tall shrubs and individual sections of trees with spot spraying of a chemical liquid on a large agro-industrial scale is not possible due to the imperfection of modern methods of processing agricultural crops. The proposed agricultural unmanned aerial vehicle, due to spot cultivation of crops, is able to increase yields and bring additional profits to agricultural farmers. Ease of operation is the most important advantage of the proposed UAV, for the processing of crops using this UAV does not require special skills, as, for example, when operating agricultural aircraft and ground equipment. Depending on the type of crops and the characteristics of the local landscape, the proposed UAV for agricultural purposes will be spraying in the vertical direction (top to bottom) or at a given angle by changing the position of the lever and its further fixation on the boom, as well as processing in the horizontal plane. The degree of direct human participation in the control and management of the UAV is determined based on the choice of the mode of differential application of fertilizers and pesticides for a given area - stationary or dynamic. In an idealized system, a programmed electronic computer (ECM) in the form of a computer, capable of adjusting the flight and the introduction of chemical reagents in a constant mode, will assume the main role in controlling the movement by analyzing the readings of the instrument sensors. All this can be implemented in practice at the proper level with appropriate funding, and the results of such a project in the future will open a new stage in the sectoral processing of crops and pole crops.

scholarly journals Design and Optimization of Coupling Coils for Bidirectional Wireless Charging System of Unmanned Aerial Vehicle

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1964
Author(s):  
Yang Li ◽  
Xin Ni ◽  
Jiaming Liu ◽  
Rui Wang ◽  
Jingnan Ma ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Lightweight Design ◽  
Wireless Charging ◽  
Power Transfer ◽  
Design And Optimization ◽  
Charging System ◽  
Transmission Distance ◽  
System A ◽  
Power Transfer Efficiency ◽  
Aerial Vehicle

To solve the battery power supply problem with wireless sensor networks (WSNs), a novel bidirectional wireless charging system is proposed, in which an unmanned aerial vehicle (UAV) can fly to the WSNs to charge sensors through high-frequency wireless power transfer (WPT) and also obtain energy for its own battery in the same way. To improve the performance of the UAV bidirectional wireless charging system, a lightweight design is adopted to increase its loading capacity and working time. Moreover, the radii and the numbers of turns and pitches of coupling coils were designed and optimized on the basis of simulations and experiments. Experimental results show that the weight of optimized UAV coil was reduced by 34.45%. The power transfer efficiency (PTE) of the UAV coil to sensor coil increased from 60.2% to 74.4% at a transmission distance of 15 cm, while that of the ground transmitting coil to UAV coil increased from 65.2% to 90.1% at 10 cm.

scholarly journals Data Comets: Designing a Visualization Tool for Analyzing Autonomous Aerial Vehicle Logs with Grounded Evaluation

2020 ◽  
Author(s):  
David Saffo ◽  
Aristotelis Leventidis ◽  
Twinkle Jain ◽  
Michelle Borkin ◽  
Cody Dunne
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Process Model ◽  
User Involvement ◽  
Visualization Tool ◽  
Web Based ◽  
Visualization System ◽  
System A ◽  
Target User ◽  
In The Wild ◽  
Aerial Vehicle

Autonomous unmanned aerial vehicles are complex systems of hardware, software, and human input. Understanding this complexity is key to their development and operation. Information visualizations already exist for exploring flight logs but comprehensive analyses currently require several disparate and custom tools. This design study helps address the pain points faced by autonomous unmanned aerial vehicle developers and operators. We contribute: a spiral development process model for grounded evaluation visualization development focused on progressively broadening target user involvement and refining user goals; a demonstration of the model as part of developing a deployed and adopted visualization system; a data and task abstraction for developers and operators performing post-flight analysis of autonomous unmanned aerial vehicle logs; the design and implementation of DATA COMETS, an open-source and web-based interactive visualization tool for post-flight log analysis incorporating temporal, geospatial, and multivariate data; and the results of a summative evaluation of the visualization system and our abstractions based on in-the-wild usage. A free copy of this paper and source code are available at osf.io/h4p7g

A Simaplied Adaptive Kalman Filtering Algorithm

2014 ◽  
Vol 1037 ◽  
pp. 378-382
Author(s):  
Lei Bo ◽  
Xin Yan Zhu
Keyword(s):  
Maximum Likelihood ◽  
Maximum Likelihood Estimation ◽  
Unmanned Aerial Vehicle ◽  
Kalman Filtering ◽  
Likelihood Estimation ◽  
Simplified Model ◽  
Filtering Algorithm ◽  
Aerial Vehicle ◽  
Kalman Filtering Algorithm ◽  
The Moment

The adaptive Kalman filtering algorithm was adopted in the online estimate of navigation state of unmanned aerial vehicle (UAV) as the simplified model often used. At the moment, the alogorithms those usually applied in this territory are not perfect. Analysed the adaptive Kalman filtering based on Maximum-Likelihood Estimation and Sage-Husa Kalman filtering, take advantage the characteristics of residue, choose the estimation windows, a simplified adaptive Kalman filtering algorithm was gived.

Conformal s-Shaped Inlet Design and Flow Field Characteristics of Flying Wing Unmanned Aerial Vehicle

2014 ◽  
Vol 940 ◽  
pp. 295-299
Author(s):  
Le Zhang ◽  
Zhou Zhou ◽  
Hong Bo Wang
Keyword(s):  
Power System ◽  
Unmanned Aerial Vehicle ◽  
Flow Characteristics ◽  
Aerodynamic Performance ◽  
Flow Distortion ◽  
Recovery Coefficient ◽  
Area Distribution ◽  
Flow Field Characteristics ◽  
Aerial Vehicle ◽  
The Moment

According to the stealth and conformal requirement of flying wing UAV(Unmanned Aerial Vehicle),an dorsal subsonic S-shaped inlet with long diffuser and large offset is designed. In the light of the characteristics of the inlet, new area distribution is created. In the study, the model with power system and the other model whose pipeline connected are established. The coupled numerical simulation is also carried out on the inflow/outflow integrated for flying wing UAV, and it is applied to study the longitudinal aerodynamic performance of UAV and the flow characteristics of inlet under different flight conditions. Results indicate: The longitudinal aerodynamic performance of the model with power system is close to the model with pipeline connected, but the moment characteristic of the former is better; The inlet characteristics are similar when Ma=0.5 and Ma=0.6; As the mach number increasing, the inlet performance decreases rapidly, Especially at the Ma = 0.7, there is a large low-pressure dominated region at the small angle of attack α = 2°, which leads to the total pressure recovery coefficient decreasing rapidly and the flow distortion increasing obviously.

A portable complex using UAVs to inject hygroscopic powders for precipitation enhancement to extinguish forest fires

2021 ◽  
Author(s):  
S.R. Amirova ◽  
A.I. Markin ◽  
Alexandre Michtchenko ◽  
T.V. Tulaykova
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Forest Fires ◽  
Portable Device ◽  
Special Device ◽  
Chemical Reagents ◽  
Key Points ◽  
Aerial Vehicle ◽  
Precipitation Enhancement ◽  
Large Aircraft

The ideas and calculations presented in the article relate to the field of meteorology and climatology and for extinguishing forest fires. It is proposed to use an unmanned aerial vehicle (UAV) combined with a portable device for the dosed addition of hygroscopic reagents for precipitation enhancement in natural clouds. The complex, like the UAV with special device for dozed reagents, is characterized by mobility and the possibility of its usage in hard-to-reach woodlands. The advantage is that UAV is easy to use and does not require large airfields with a long runway and other special aviation equipment necessary for the operation of large aircraft. It should also be noted that the mass of the necessary chemical reagents is many times greater than the mass of received water in the form of precipitation from clouds according to the developed and currently available technologies. The algorithm and examples of calculating the key points of the application of the complex and the method of its implementation are set out in the text.

Creation of computer facilities for controlling an autonomous aircraft with the use of remote cloud calculations

2021 ◽  
Vol 3 (1) ◽  
pp. 106-113
Author(s):  
V Chyhin ◽  
Keyword(s):  
Operating System ◽  
Unmanned Aerial Vehicle ◽  
Personal Computer ◽  
Computer Control ◽  
Control Panel ◽  
Computer Control System ◽  
Control Programs ◽  
System A ◽  
Video Images ◽  
Aerial Vehicle

The possibility of creating a computer control system for an unmanned aerial vehicle using remote cloud computing according to predefined scenarios from the user's desktop is investigated. For this, an experimental setup was created, which includes a quadcopter, a personal computer with the Windows operating system, an on-board computer Raspberry-3 with the Linux operating system, a Pi Camera V2 camcorder, and a Pixhawk autopilot. To model the control and transmission of video images the own control programs and photo pursuit on a computer Raspberry-3 in Python are recorded. Based on the obtained results, a model of unmanned aerial vehicle control from the desktop of the user's personal computer via the on-board computer without the use of a standard control panel and operator is proposed.

scholarly journals Análise das mudanças morfológicas em escala de detalhe em voçoroca urbana utilizando perfilamento a laser e veículo aéreo não tripulado

2021 ◽  
Vol 14 (2) ◽  
pp. 758
Author(s):  
Fernando Da Silva Alexandre ◽  
Ana Lúcia Bezerra Candeias ◽  
Daniel Dantas Moreira Gomes
Keyword(s):  
Natural Resources ◽  
Unmanned Aerial Vehicle ◽  
Morphological Changes ◽  
Digital Model ◽  
Agricultural Crops ◽  
Natural Landscapes ◽  
Aerial Vehicle ◽  
Laser Profiling

O solo é um dos recursos naturais mais importantes para a humanidade e vital para o funcionamento dos ecossistemas, a erosão linear do solo por processos hídricos é considerada um dos maiores modificadores naturais da paisagem. Dentre os processos erosivos lineares tem-se as voçorocas, que são uma forma típica de erosão nas regiões semiáridas, com alta atividade morfológica e dinâmica observável. A voçoroca urbana deste estudo se localiza no bairro Dom Hélder Câmara, na cidade de Garanhuns, agreste pernambucano, a voçoroca se localiza próxima a moradias, com casa a cerca de 13 metros de distância de sua borda, além de apresentar quase que completa ausência da cobertura vegetal arbórea e presença de culturas agrícolas em seu interior. O estudo em questão visou analisar as mudanças morfológicas da voçoroca na escala de 1:1.000 entre os anos de 2016 e 2018, através da quantificação e espacialização do material erodido, para tanto se utilizou dados de perfilamento a laser advindos do projeto PE3D e de modelo digital de terreno gerador a partir de um veículo aéreo não tripulado. Obteve-se como resultado que entre os dois anos houve aumento areal da voçoroca de cerca de 2.408,37 m² de área total e foram erodidos cerca de 143,039,24 m³ de material em toda a área de estudo.   Analysis of the morphological changes in detail scale in urban gully using laser profiling and unmanned aerial vehicle A B S T R A C TThe soil is one of the most important natural resources for de humankind and vital for de functional of the ecosystems, the linear erosion of the soil for process hydric is considered an of the big modificators of the natural landscapes. In the linear erosion have the gullies, then that are a typical in the region semiarid, with high morphological active and dynamic observable. The urban gully in this study is located in Garanhuns, Pernambuco, moreover, almost no preset tree vegetation, but present agricultural crops inside the gully. The present study has the objective to analyzed the morphological changes in the urban gully in the scale of 1:1.000 between 2016 and 2018, by the quantification and spatialization of the eroded material, this has utilized a laser profiling of the project PE3D and a terrain digital model created by unmanned aerial vehicle. Is obtained like result between the two years have an increase in the areas of the gully of 2.408,37 m² and has eroded approximately 143.039,25 m³ of material in the total study area.Keywords: semiarid, linear erosion, semiarid gullies. 

Study on Fault Diagnosis of Planetary Gearbox in Unmanned Aerial Vehicle Using Multi sensor Data

2020 ◽  
Vol 20 (4) ◽  
pp. 332-342
Author(s):  
Hyung Jun Park ◽  
Seong Hee Cho ◽  
Kyung-Hwan Jang ◽  
Jin-Woon Seol ◽  
Byung-Gi Kwon ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Unmanned Aerial Vehicle ◽  
Sensor Data ◽  
Planetary Gearbox ◽  
Aerial Vehicle

Results of Spatial Structure of Atmosphere Radiation in a Spectral Range (1.5–2) µm Research

2018 ◽  
pp. 7-13
Author(s):  
Anton M. Mishchenko ◽  
Sergei S. Rachkovsky ◽  
Vladimir A. Smolin ◽  
Igor V . Yakimenko
Keyword(s):  
Spatial Structure ◽  
Unmanned Aerial Vehicle ◽  
Wavelength Range ◽  
Spectral Range ◽  
Near Ir ◽  
Optoelectronic Systems ◽  
Aerial Vehicle

Results of experimental studying radiation spatial structure of atmosphere background nonuniformities and of an unmanned aerial vehicle being the detection object are presented. The question on a possibility of its detection using optoelectronic systems against the background of a cloudy field in the near IR wavelength range is also considered.

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