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Journal articles on the topic 'Drones multirotors'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kaiser, Dennis, Veronika Lesch, Julian Rothe, et al. "Towards Self-Aware Multirotor Formations." Computers 9, no. 1 (2020): 7. http://dx.doi.org/10.3390/computers9010007.

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In the present day, unmanned aerial vehicles become seemingly more popular every year, but, without regulation of the increasing number of these vehicles, the air space could become chaotic and uncontrollable. In this work, a framework is proposed to combine self-aware computing with multirotor formations to address this problem. The self-awareness is envisioned to improve the dynamic behavior of multirotors. The formation scheme that is implemented is called platooning, which arranges vehicles in a string behind the lead vehicle and is proposed to bring order into chaotic air space. Since mul

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Matus-Vargas, Antonio, Gustavo Rodriguez-Gomez, and Jose Martinez-Carranza. "A Monocular SLAM-based Controller for Multirotors with Sensor Faults under Ground Effect." Sensors 19, no. 22 (2019): 4948. http://dx.doi.org/10.3390/s19224948.

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Multirotor micro air vehicles can operate in complex and confined environments that are otherwise inaccessible to larger drones. Operation in such environments results in airflow interactions between the propellers and proximate surfaces. The most common of these interactions is the ground effect. In addition to the increment in thrust efficiency, this effect disturbs the onboard sensors of the drone. In this paper, we present a fault-tolerant scheme for a multirotor with altitude sensor faults caused by the ground effect. We assume a hierarchical control structure for trajectory tracking. The

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Carrera, Fausto Freire, Pablo Tamayo, Olga Chadrina, and Sergei Kharlamov. "Multirotor Heavy Lift Drone." EPJ Web of Conferences 248 (2021): 02010. http://dx.doi.org/10.1051/epjconf/202124802010.

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This article begins by analysing the fields of application of cargo drones at an international level, to then determine the most used configurations and with the best performance to lift important loads, from which a coaxial octocopter drone with X8 configuration was designed and built, with a payload capacity of up to 20 kg and a flight range of 45 minutes. The relevance to build in Ecuador of this type of drones was also analysed and thus minimize technological dependence. The results showed that it starts with 31% of national components and that by executing activities aimed at reducing dep

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Walendziuk, Wojciech, Piotr Falkowski, and Krzysztof Kulikowski. "The Analysis of Power Supply Topologies for Tethered Drone Applications." Proceedings 51, no. 1 (2020): 25. http://dx.doi.org/10.3390/proceedings2020051025.

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This article presents three technical variants of a power supply system of a tethered multirotor drone. The proposed solutions can be applied as power sources for multirotor flying constructions used, among others, for surveillance systems or air quality measurements. The paper describes the topologies of the drones’ supply systems as well as their functional analysis.

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Makode, Kunal. "Parcel providing and Patrolling Hexacopter with High Payload." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 1977–80. http://dx.doi.org/10.22214/ijraset.2021.35378.

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The different varieties of drones may be differentiated in terms of the sort (fixed-wing, multirotor, etc.), the degree of autonomy, the dimensions and weight, and also the power supply. These specifications are dynamic, as an example for the drone’s cruising vary, the utmost flight length, and also the loading capability. Apart from the drone itself (i.e., the ‘platform’) varied varieties of payloads may be distinguished, together with freight (e.g., mail parcels, medicines, hearth ending material, flyers, etc.) and differing kinds of sensors (e.g., cameras, sniffers, meteorological sensors,

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Kelaher, Brendan P., Victor M. Peddemors, Brent Hoade, Andrew P. Colefax, and Paul A. Butcher. "Comparison of sampling precision for nearshore marine wildlife using unmanned and manned aerial surveys." Journal of Unmanned Vehicle Systems 8, no. 1 (2020): 30–43. http://dx.doi.org/10.1139/juvs-2018-0023.

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Aerial surveys of large marine wildlife in nearshore areas can support management actions to ensure conservation of this megafauna. While most aerial surveys of marine wildlife have been carried out using manned aircraft, unmanned aerial systems (commonly known as drones) are being increasingly used. Here, we compare the relative accuracy and precision of marine wildlife surveys from a multirotor drone and a manned helicopter for the first time. At two locations on the east coast of Australia, we simultaneously surveyed sharks (including white sharks, Carcharodon carcharias), dolphins, rays, a

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Vargas-Ramírez, Nicolás, and Jaime Paneque-Gálvez. "The Global Emergence of Community Drones (2012–2017)." Drones 3, no. 4 (2019): 76. http://dx.doi.org/10.3390/drones3040076.

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The use of drones with or by communities—what we call community drones—has emerged globally over the last decade to serve diverse purposes. Despite a growing academic interest in community drones, most experiences have been documented as gray literature and there are still no publications that review and systematize their use worldwide. Here, we present an overview of the first experiences using community drones—what we refer to as their global emergence (2012–2017). We reviewed gray and academic literature in English and Spanish for the period 2012–2017. We then analyzed the experiences accor

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Coluccia, Angelo, Gianluca Parisi, and Alessio Fascista. "Detection and Classification of Multirotor Drones in Radar Sensor Networks: A Review." Sensors 20, no. 15 (2020): 4172. http://dx.doi.org/10.3390/s20154172.

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Thanks to recent technological advances, a new generation of low-cost, small, unmanned aerial vehicles (UAVs) is available. Small UAVs, often called drones, are enabling unprecedented applications but, at the same time, new threats are arising linked to their possible misuse (e.g., drug smuggling, terrorist attacks, espionage). In this paper, the main challenges related to the problem of drone identification are discussed, which include detection, possible verification, and classification. An overview of the most relevant technologies is provided, which in modern surveillance systems are compo

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9

Pleşca, Vasile, and Cristian Purece. "Predictive maintenance of photovoltaic plants using multirotor drones with automatic recharging system of Li-Po batteries." E3S Web of Conferences 180 (2020): 02007. http://dx.doi.org/10.1051/e3sconf/202018002007.

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Creating the correct maintenance of the strings that form the electric generators, from a photovoltaic park, it requires scanning of the equipment with thermal vision cameras, in the visible and infrared field, at an optimum angle determined precisely for each location depending on the geographic position and the architecture of the power station. In general, this angle is difficult to maintain from the ground so it is necessary to mount the cameras on a support, or most efficiently on a multi-rotor drone that is very stable and easy to handle. Maintenance using multi-rotor drones and heat sen

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10

Shukla, Dhwanil, and Narayanan Komerath. "Multirotor Drone Aerodynamic Interaction Investigation." Drones 2, no. 4 (2018): 43. http://dx.doi.org/10.3390/drones2040043.

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Aerodynamic interactions between rotors are important factors affecting the performance of in-plane multirotor Unmanned Air Vehicles (UAVs) or drones, which are the majority of small size UAVs (or mini-drones). Optimal design requires knowledge of the flow features. The low Reynolds number of many UAV rotors raises the question of how these features differ from those expected by traditional analytical methods for rotorcraft. Aerodynamics of a set of side-by-side rotors in hover over a range of rotor separation and Reynolds number is studied using high-speed Stereo Particle Image Velocimetry (S

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11

Wen, Fu-Hsuan, Fu-Yuen Hsiao, and Jaw-Kuen Shiau. "Analysis and Management of Motor Failures of Hexacopter in Hover." Actuators 10, no. 3 (2021): 48. http://dx.doi.org/10.3390/act10030048.

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This research presents an analysis and management strategy for hovering hexacopter with one or more failing motors. Of late, multirotor drones have become particularly popular, and all drones have been increasing in popularity. Unlike a fixed-wing drone, failure of motors in a multirotor craft may cause safety problems. Numerous published articles have proposed solving this problem by redesigning the control law or control gain. This approach, however, is difficult to implement because change of control gain usually involves connecting external devices. This paper proposes to keep the control

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Huang, Zheng, Xuefeng Zhai, Hongxing Wang, Hang Zhou, Hongwei Zhao, and Mingduan Feng. "On the 3D Track Planning for Electric Power Inspection Based on the Improved Ant Colony Optimization and A∗ Algorithm." Mathematical Problems in Engineering 2020 (June 30, 2020): 1–11. http://dx.doi.org/10.1155/2020/8295362.

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At present, multirotor drones are restricted by the control accuracy and cannot position accurately according to the accuracy of point cloud data. Also, track planning in three-dimensional space is much more complicated than that in two-dimensional space, which means that existing track planning methods cannot achieve fast planning. Meanwhile, most existing researches were implemented in quasi-three-dimensional space with the shortest route length as the objective function and omitted environmental impacts. To overcome these, this paper uses the grid method to segment point cloud data of the f

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Tinney, Charles E., and Jayant Sirohi. "Multirotor Drone Noise at Static Thrust." AIAA Journal 56, no. 7 (2018): 2816–26. http://dx.doi.org/10.2514/1.j056827.

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Wang, Hongxing, Hang Zhou, Haoran Liu, Zheng Huang, and Mingduan Feng. "Research on Determining the Inspection Point of Multirotor UAV Power Tower." Mathematical Problems in Engineering 2021 (March 30, 2021): 1–15. http://dx.doi.org/10.1155/2021/8894055.

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During the inspection process of power pole towers, manual positioning is mainly used to select the shooting viewpoints of the drone, which leads to erroneous viewpoint selection and inaccurate shootings of inspected objects. Also, neglecting the effect of the sun’s backlight on photographs contributes to poor photo quality that does not meet inspection requirements. Aiming at the selection of shooting viewpoints during multirotor unmanned aerial vehicles’ inspection on power poles, this paper proposes an automatic positioning method that determines the shooting viewpoints by considering UAV p

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15

Butcher, Paul A., Toby P. Piddocke, Andrew P. Colefax, et al. "Beach safety: can drones provide a platform for sighting sharks?" Wildlife Research 46, no. 8 (2019): 701. http://dx.doi.org/10.1071/wr18119.

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Abstract ContextA series of unprovoked shark attacks on New South Wales (Australia) beaches between 2013 and 2015 triggered an investigation of new and emerging technologies for protecting bathers. Traditionally, bather protection has included several methods for shark capture, detection and/or deterrence but has often relied on environmentally damaging techniques. Heightened environmental awareness, including the important role of sharks in the marine ecosystem, demands new techniques for protection from shark attack. Recent advances in drone-related technologies have enabled the possibility

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Firdaus, Ramadan. "Perancangan Dan Implemetasi Sensor GPS Pada Sistem Navigasi Multirotor." Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan 8, no. 1 (2020): 30–41. http://dx.doi.org/10.34010/telekontran.v8i1.3069.

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Sistem navigasi autonomous merupakan suatu sistem yang sangat dibutuhkan oleh robot untuk dapat bergerak tanpa bantuan manusia, drone adalah salah satu jenis robot terbang yang dapat bergerak tanpa adanya pilot didalamnya. Sistem navigasi autononomous pada sebuah drone dibangun oleh beberapa sensor yang terhubung dengan mikrokontroller untuk diproses menjadi sikap dan gerakan drone untuk dapat bernavigasi sesuai dengan program yang diinginkan. GPS dapat digunakan oleh suatu drone untuk mengetahui lokasi suatu drone pada permukaan bumi karena GPS dapat menerima sinyal yang dipancarkan oleh sate

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17

Casabianca, Pietro, and Yu Zhang. "Acoustic-Based UAV Detection Using Late Fusion of Deep Neural Networks." Drones 5, no. 3 (2021): 54. http://dx.doi.org/10.3390/drones5030054.

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Multirotor UAVs have become ubiquitous in commercial and public use. As they become more affordable and more available, the associated security risks further increase, especially in relation to airspace breaches and the danger of drone-to-aircraft collisions. Thus, robust systems must be set in place to detect and deal with hostile drones. This paper investigates the use of deep learning methods to detect UAVs using acoustic signals. Deep neural network models are trained with mel-spectrograms as inputs. In this case, Convolutional Neural Networks (CNNs) are shown to be the better performing n

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18

Li, Yan, and Chunlu Liu. "Applications of multirotor drone technologies in construction management." International Journal of Construction Management 19, no. 5 (2018): 401–12. http://dx.doi.org/10.1080/15623599.2018.1452101.

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19

Pashchenko, R., V. Ivanov, D. Tsyupak, and U. Levadniy. "Frequency-temporal analysis radar reflections from multirotor drone." RADIOFIZIKA I ELEKTRONIKA 24, no. 4 (2019): 35–45. http://dx.doi.org/10.15407/rej2019.04.035.

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Suchanek, Grzegorz, and Wojciech Ciesielka. "Design and experimental research of a quadrocopter flying robot." E3S Web of Conferences 46 (2018): 00012. http://dx.doi.org/10.1051/e3sconf/20184600012.

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The drone is an unmanned aerial vehicle. Currently, many commercially available remote controlled flying toys are used to be called drones. This is an erroneous nomenclature, because the drone must have an autonomus flight function implemented. Due to it's simple mechanical construction, the most popular drones are in the form of a multirotor, in which arrangement the engines are placed in one plane. One of the most important advantages of this type of robots is the ability to maintain a certain position in space. Today, this allowed for e.g. taking photos from the air or inspecting hard-to-re

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PLESCA, Vasile, and Sanda Victorinne PAȚURCĂ. "Experimental System for Charging and Testing Batteries Specific to Multirotor Drones." Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 43, no. 4 (2020): 5–12. http://dx.doi.org/10.35219/mms.2020.4.01.

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22

Jaud, Marion, Christophe Delacourt, Nicolas Le Dantec, et al. "Diachronic UAV Photogrammetry of a Sandy Beach in Brittany (France) for a Long-Term Coastal Observatory." ISPRS International Journal of Geo-Information 8, no. 6 (2019): 267. http://dx.doi.org/10.3390/ijgi8060267.

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In the dual context of coastal hazard intensification and the growing number of stakes exposed to these hazards, coastal observatories are in demand to provide a structured framework dedicated to long-term monitoring. This article describes the drone-based photogrammetry monitoring performed since 2006 on Porsmilin Beach (Brittany, France) in the framework of the DYNALIT (Littoral and Coastline Dynamics) observatory, focusing on data quality and the consistency of long-term time series under the influence of multiple technological evolutions: Unmanned Aerial Vehicles (UAV) platforms with the a

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Budinger, M., A. Reysset, A. Ochotorena, and S. Delbecq. "Scaling laws and similarity models for the preliminary design of multirotor drones." Aerospace Science and Technology 98 (March 2020): 105658. http://dx.doi.org/10.1016/j.ast.2019.105658.

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DEMIANNAY, Nicolas, Nicolas BESNIER, Cris THOMAS, Vikas THAPA, Vindhya DEVALLA, and Amit Kumar MONDAL. "Design and Development of Multirotor UAV with Automatic Collision Avoidance using Stereo Camera." INCAS BULLETIN 12, no. 3 (2020): 65–75. http://dx.doi.org/10.13111/2066-8201.2020.12.3.5.

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The operation of drones in cluttered environments like forests and hilly areas is extremely difficult; it is impossible to use drones autonomously without having built-in information to detect and avoid obstacles. The vision based obstacle avoidance algorithm is presented in this paper, with extensions to UAV navigation. The proposed method is incorporated on a stereo vison multi copter using a block matching algorithm. The stereo vision baseline is based on horizontal configuration and computes the depth using a sum of absolute difference algorithm. The image processing node (LabVIEW vi) and

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Yeom, Seokwon. "Moving People Tracking and False Track Removing with Infrared Thermal Imaging by a Multirotor." Drones 5, no. 3 (2021): 65. http://dx.doi.org/10.3390/drones5030065.

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Infrared (IR) thermal imaging can detect the warm temperature of the human body regardless of the light conditions, thus small drones equipped with the IR thermal camera can be utilized to recognize human activity for smart surveillance, road safety, and search and rescue missions. However, the unpredictable motion of the drone poses more challenges than a fixed camera. This paper addresses the detection and tracking of people through IR thermal video captured by a multirotor. For object detection, each frame is first registered with a reference frame to compensate for its coordinates. Then, t

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Artale, Valeria, Cristina L. R. Milazzo, and Angela Ricciardello. "A quaternion-based simulation of multirotor dynamics." International Journal of Modeling, Simulation, and Scientific Computing 06, no. 01 (2015): 1550009. http://dx.doi.org/10.1142/s1793962315500099.

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The main problem addressed in this paper is the quaternion-based trajectory control of a microcopter consisting of six rotors with three pairs of counter-rotating fixed-pitch blades, known as hexacopter. If the hypothesis of rigid body condition is assumed, the Newton–Euler equations describe the translational and rotational motion of the drone. The standard Euler-angle parametrization of three-dimensional rotations contains singular points in the coordinate space that can cause failure of both dynamical model and control. In order to avoid singularities, all the rotations of the microcopter a

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Oliinyk, R. M., S. V. Tsilyna, Y. M. Zhyvets, and O. V. Yermolenko. "SYSTEMS OF RADIO-ELECTRONIC FIGHT AGAINST PILOTLESS VEHICLES MULTIROTOR TYPE IN DISTRICTS OF CONDUCT BATTLE ACTIONS." Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, no. 18 (December 30, 2020): 44–53. http://dx.doi.org/10.46972/2076-1546.2020.18.05.

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In modern warfare, the information component is crucial for both sides of the conflict. Donetsk and Luhansk regions have become a kind of bridgehead for testing and application in the operation of unmanned aerial vehicles of various dimensions and functional purposes, the most common of which are small reconnaissance unmanned aerial vehicles. Dozens of enemy vehicles are gathering information about the location of the Ukrainian military. To date, no state is ready to withstand planned attacks by unmanned aerial vehicles. Traditional air defense weapons are designed for large and long-range tar

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Biczyski, Marcin, Rabia Sehab, James F. Whidborne, Guillaume Krebs, and Patrick Luk. "Multirotor Sizing Methodology with Flight Time Estimation." Journal of Advanced Transportation 2020 (January 20, 2020): 1–14. http://dx.doi.org/10.1155/2020/9689604.

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This paper addresses the need for sizing of rotors for multirotor vehicle applications such as personal air transport, delivery, surveillance, and photography. A methodology for the propeller and motor selection is developed and augmented with flight time estimation capabilities. Being multirotor-specific it makes use of the platform’s simplicity to rapidly provide a set of off-the-shelf components ready to be used in the vehicle. Use of operating points makes the comparison process fast, precise, and tailored to specific application. The method is easily implemented in software to provide an

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Delbecq, S., M. Budinger, A. Ochotorena, A. Reysset, and F. Defay. "Efficient sizing and optimization of multirotor drones based on scaling laws and similarity models." Aerospace Science and Technology 102 (July 2020): 105873. http://dx.doi.org/10.1016/j.ast.2020.105873.

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Li, Yi, Koichi Yonezawa, and Hao Liu. "Effect of Ducted Multi-Propeller Configuration on Aerodynamic Performance in Quadrotor Drone." Drones 5, no. 3 (2021): 101. http://dx.doi.org/10.3390/drones5030101.

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Motivated by a bioinspired optimal aerodynamic design of a multi-propeller configuration, here we propose a ducted multi-propeller design to explore the improvement of lift force production and FM efficiency in quadrotor drones through optimizing the ducted multi-propeller configuration. We first conducted a CFD-based study to explore a high-performance duct morphology in a ducted single-propeller model in terms of aerodynamic performance and duct volume. The effect of a ducted multi-propeller configuration on aerodynamic performance is then investigated in terms of the tip distance and the he

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Johnston, David W. "Unoccupied Aircraft Systems in Marine Science and Conservation." Annual Review of Marine Science 11, no. 1 (2019): 439–63. http://dx.doi.org/10.1146/annurev-marine-010318-095323.

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The use of unoccupied aircraft systems (UASs, also known as drones) in science is growing rapidly. Recent advances in microelectronics and battery technology have resulted in the rapid development of low-cost UASs that are transforming many industries. Drones are poised to revolutionize marine science and conservation, as they provide essentially on-demand remote sensing capabilities at low cost and with reduced human risk. A variety of multirotor, fixed-wing, and transitional UAS platforms are capable of carrying various optical and physical sampling payloads and are being employed in almost

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Viseras, Alberto, Thomas Wiedemann, Christoph Manss, Valentina Karolj, and Dmitriy Shutin and Juan Marchal. "Beehive-Inspired Information Gathering with a Swarm of Autonomous Drones." Sensors 19, no. 19 (2019): 4349. http://dx.doi.org/10.3390/s19194349.

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This paper presents a beehive-inspired multi-agent drone system for autonomous information collection to support the needs of first responders and emergency teams. The proposed system is designed to be simple, cost-efficient, yet robust and scalable at the same time. It includes several unmanned aerial vehicle (UAVs) that can be tasked with data collection, and a single control station that acts as a data accumulation and visualization unit. The system also provides a local communication access point for the UAVs to exchange information and coordinate the data collection routes. By avoiding pe

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Blažek, Josef, Pavol Lipovský, František Heško, and Dušan Repčík. "Electromagnetic image of small UAV in very low frequency range." Journal of Electrical Engineering 69, no. 6 (2018): 438–41. http://dx.doi.org/10.2478/jee-2018-0069.

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Abstract The article deals with the measurement, visualization and analysis of the magnetic field in the 3D space around a small quadcopter. The measurements were realized in the very low frequency (VLF) range, since this range is interesting because of the possible detection of the drone also in the fully automated flight mode (without telemetry transmission). A measurement equipment/device that allows mapping of the magnetic field of the multirotor drone based on the sensor elevation and the copters azimuth was realized. The magnetic field was measured with a small inductive sensor – the air

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Feurer, Denis, Mohamed Amine El Maaoui, Mohamed Rached Boussema, and Olivier Planchon. "Méthode opérationnelle de production d'orthophotos et de MNT décimétriques à l'échelle du kilomètre carré par cerf-volant." Revue Française de Photogrammétrie et de Télédétection, no. 213 (April 26, 2017): 43–53. http://dx.doi.org/10.52638/rfpt.2017.190.

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Tous vecteurs confondus, ce sont les drones, notamment les multirotor, qui ont connu le plus fort développement pour l'acquisition d'images aériennes durant les cinq dernières années. L'imagerie accessible par ce type de plate-forme répond à un besoin de cartographie à une échelle intermédiaire entre l'imagerie submétrique (satellite à très haute résolution spatiale ou vecteurs aériens comme les ULM et certains drones) et l'imagerie acquise à très basse altitude à des résolutions parfois inférieures au centimètre. Par son prix élevé, l'imagerie submétrique aérienne et satellitaire laisse un gr

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Che Mat, Norhalim, and Khairul Nizam Tahar. "Surf Zone Mapping Using Multirotor Unmanned Aerial Vehicle Imagery." International Journal of Optics 2019 (May 30, 2019): 1–13. http://dx.doi.org/10.1155/2019/2987301.

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Surf zone is a sand area that stretches inside a breaking wave to limit the rise and fall of waves on the beach. Advanced technology in the geomatics field offers a fast and accurate solution to produce surf zone maps. The demand for surf zone map is increasing during the monsoon season, especially at coastal areas. Nowadays, the Unmanned Aerial Vehicle (UAV) or drone has become popular platform in the geospatial and surveying field. The aim of this study is to produce surf zone 3D surface mapping by using a multirotor Unmanned Aerial Vehicle. There are four phases in this study which are imag

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Dorj, Byambaa, Deok Chan Kang, and Deok Jin Lee. "Vision Based Target Tracking Control of a Multirotor Drone Using Raspberry Pi Embedded Module." Advanced Science Letters 22, no. 10 (2016): 3043–46. http://dx.doi.org/10.1166/asl.2016.7995.

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Falorca, Jorge Furtado, João P. N. D. Miraldes, and João Carlos Gonçalves Lanzinha. "New trends in visual inspection of buildings and structures: Study for the use of drones." Open Engineering 11, no. 1 (2021): 734–43. http://dx.doi.org/10.1515/eng-2021-0071.

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Abstract Visual inspection is a very simple, non-destructive technique and usual in diagnosing buildings and structures’ conditions. It also plays an important role in the rapid assessment of constructive problems as well as in the definition of an appropriate way for eventual remedial interventions. However, the use of this methodology often meets difficulties, especially when places to be inspected are difficult to access; it involves security risks for inspectors or even when a reactive inspection of urgent nature becomes unfeasible due to the high costs and the necessary means involved. In

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Mohamad, NA, N. Azmy, L. Mohamed Yusof, and M. S. Wahap. "Derivation of high-resolution orthophoto map from multirotor drone survey for application in infrastructure management." IOP Conference Series: Earth and Environmental Science 682, no. 1 (2021): 012048. http://dx.doi.org/10.1088/1755-1315/682/1/012048.

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Benhadhria, Saifeddine, Mohamed Mansouri, Ameni Benkhlifa, Imed Gharbi, and Nadhem Jlili. "VAGADRONE: Intelligent and Fully Automatic Drone Based on Raspberry Pi and Android." Applied Sciences 11, no. 7 (2021): 3153. http://dx.doi.org/10.3390/app11073153.

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Multirotor drones are widely used currently in several areas of life. Their suitable size and the tasks that they can perform are their main advantages. However, to the best of our knowledge, they must be controlled via remote control to fly from one point to another, and they can only be used for a specific mission (tracking, searching, computing, and so on). In this paper, we intend to present an autonomous UAV based on Raspberry Pi and Android. Android offers a wide range of applications for direct use by the UAV depending on the context of the assigned mission. The applications cover a lar

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Puttock, A. K., A. M. Cunliffe, K. Anderson, and R. E. Brazier. "Aerial photography collected with a multirotor drone reveals impact of Eurasian beaver reintroduction on ecosystem structure." Journal of Unmanned Vehicle Systems 3, no. 3 (2015): 123–30. http://dx.doi.org/10.1139/juvs-2015-0005.

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Beavers are often described as ecological engineers with an ability to modify the structure and flow of fluvial systems and create complex wetland environments with dams, ponds, and canals. Consequently, beaver activity has implications for a wide range of environmental ecosystem services including biodiversity, flood risk mitigation, water quality, and sustainable drinking water provision. With the current debate surrounding the reintroduction of beavers into the United Kingdom, it is critical to be able to monitor the impact of beavers upon the environment. This study presents the first proo

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Zhang, Na, Mingcheng Zhang, and Kin Huat Low. "3D path planning and real-time collision resolution of multirotor drone operations in complex urban low-altitude airspace." Transportation Research Part C: Emerging Technologies 129 (August 2021): 103123. http://dx.doi.org/10.1016/j.trc.2021.103123.

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Sato, Ryohei, Kento Tanaka, Hanako Ishida, et al. "Detection of Gas Drifting Near the Ground by Drone Hovering Over: Using Airflow Generated by Two Connected Quadcopters." Sensors 20, no. 5 (2020): 1397. http://dx.doi.org/10.3390/s20051397.

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This paper describes the utilization of the downwashes of multicopters for gas-sensing applications. Multirotor drones are an attractive platform for sensing applications. Their high maneuverability enables swift scanning of a target area with onboard sensors. When equipped with a gas sensor and used for gas-sensing applications, however, the strong downwash produced by the rotors poses a problem. When a multicopter is hovering at a low altitude, gas puffs leaked from a gas source on the ground are all blown away. Here, we propose to use two multicopters connected by a rod or a string and plac

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Raja, Vijayanandh, Senthil Kumar Solaiappan, Parvathy Rajendran, Senthil Kumar Madasamy, and Sunghun Jung. "Conceptual Design and Multi-Disciplinary Computational Investigations of Multirotor Unmanned Aerial Vehicle for Environmental Applications." Applied Sciences 11, no. 18 (2021): 8364. http://dx.doi.org/10.3390/app11188364.

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This study focuses on establishing a conceptual design for a multirotor unmanned aerial vehicle (UAV). The objectives of this octocopter are to reduce the number of flight cancelations and car accidents owing to low-visibility issues and to improve abnormal environmental conditions due to the presence of smoke. The proposed octocopter contains a convergent–divergent [CD] duct-based storage tank, which provides a platform to store saltwater and allows it to fly in foggy zones. Fine saltwater is sprayed from the octocopter and dispersed into the low clouds, thereby altering the vapor’s microphys

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Ozawa, Akihito, Toru Uchiyama, and Ayuko Kameyama. "Estimating the density of the shoot blight and rolled leaves using aerial photography from a multirotor-type drone in tea fields." Annual Report of The Kansai Plant Protection Society 60 (May 31, 2018): 113–16. http://dx.doi.org/10.4165/kapps.60.113.

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AL-Qadri, Mohammed, and Jianchuan Cheng. "Study on Using Single UAV’s image for Extraction Measurement of Flat Area." E3S Web of Conferences 165 (2020): 03010. http://dx.doi.org/10.1051/e3sconf/202016503010.

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A new technology Unmanned Aerial Vehicles (UAV), is increasingly used by land surveyors for various applications. CV software for processing drone images has made great strides in making it easier to use and reducing the need for human intervention. CV method relies on tie point extraction from a set of overlapping images, which used to generate a model for the area of interest. However, using this technique to process large areas at an acceptable resolution requires huge photos and significant computer resources. Therefore, this study aims to assess the measurement accuracy that can be obtain

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Martinez-Martin, Ester, Eric Ferrer, Ilia Vasilev, and Angel P. del Pobil. "The UJI Aerial Librarian Robot: A Quadcopter for Visual Library Inventory and Book Localisation." Sensors 21, no. 4 (2021): 1079. http://dx.doi.org/10.3390/s21041079.

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Over time, the field of robotics has provided solutions to automate routine tasks in different scenarios. In particular, libraries are awakening great interest in automated tasks since they are semi-structured environments where machines coexist with humans and several repetitive operations could be automatically performed. In addition, multirotor aerial vehicles have become very popular in many applications over the past decade, however autonomous flight in confined spaces still presents a number of challenges and the use of small drones has not been reported as an automated inventory device

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Ozawa, Akihito, Toru Uchiyama, and Tetsuya Oishi. "Estimating Anthracnose Damage by Colletotrichum theae-sinensis (Miyake) Yamamoto in Tea Fields Using Aerial Image Data from Multirotor-type UAV (Drone)." Chagyo Kenkyu Hokoku (Tea Research Journal) 2017, no. 124 (2017): 9–16. http://dx.doi.org/10.5979/cha.2017.124_9.

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Nasution, Jiimy D. "RANCANG BANGUN PROTOTIPE QUADROTOR UNTUK APLIKASI PENGINTAIAN DAN PENYERGAPAN TARGET OPERASIONAL PENEGAK HUKUM DOMESTIK." Jurnal Pengabdian Sriwijaya 5, no. 2 (2017): 397–407. http://dx.doi.org/10.37061/jps.v5i2.5653.

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Saat ini, quadrotor berukuran kecil (jarak wheelbase berkisar antara 130 mm sampai 280 mm) sering dimanfaatkan dalam ajang adu kecepatan dengan istilah “drone racing” dan marak diselenggarakan dalam bentuk kontes resmi di negara-negara luar, seperti Eropa, Australia, dan Amerika Serikat. Sebagai wahana racing, quadrotor ini memiliki beberapa keunggulan dalam hal desain bila dibandingkan dengan multirotor yang berukuran sedang atau besar. Dengan ukuran yang kecil dan ringan (lightweight), desain racing quadrotor ini dapat diterbangkan serendah mungkin dan memiliki kemampuan manuver yang tinggi

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Muslim, Refinda Fazar. "Sistem Pendeteksi Area Logistik Pada Pada Pesawat Tanpa Awak Untuk Area Perkebunan." Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan 8, no. 2 (2021): 113–22. http://dx.doi.org/10.34010/telekontran.v8i2.3806.

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Sejak penanaman awal kelapa sawit di Indonesia pada tahun 2019 hingga saat ini, luas perkebunan kelapa sawit mengalami perkembangan yang meningkat. Indonesia merupakan salah satu komoditas produksi kelapa sawit terbesar di dunia. Karena di Indonesia terdapat beberapa perkebunan kelapa sawit yang luas, tarkadang terkendala terhadap jalur pendistribusian pupuk. Maka diperlukannya sebuah inovasi teknologi untuk pemantauan area yang sangat luas dengan waktu yang efisien. Teknologi yang cocok untuk pemantauan dan pencarian area logistik adalah dengan menggunakan pesawat tanpa awak dikarenakan penye

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Castro, Joana, Francisco O. Borges, André Cid, Marina I. Laborde, Rui Rosa, and Heidi C. Pearson. "Assessing the Behavioural Responses of Small Cetaceans to Unmanned Aerial Vehicles." Remote Sensing 13, no. 1 (2021): 156. http://dx.doi.org/10.3390/rs13010156.

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Unmanned Aerial Vehicles (UAVs), or drones, have recently emerged as a relatively affordable and accessible method for studying wildlife. Vertical Take-off and Landing (VTOL) UAVs are appropriate for morphometric, behavioural, abundance and demographic studies of marine mammals, providing a stable, nonintrusive and highly manoeuvrable platform. Previous studies using VTOL UAVs have been conducted on various marine mammal species, but specific studies regarding behavioural responses to these devices are limited and scarce. The aim of this study was to evaluate the immediate behavioural response

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