scholarly journals DESIGN OF A NAVIGATION UNIT FOR A NEW UNMANNED AERIAL VEHICLE: A COMPOSITE OF A CAPSTONE AND RESEARCH PROJECTS

2015 ◽  
Author(s):  
Witold Kinsner ◽  
Stephanie English ◽  
Curtis Einarson ◽  
Bryan Drobot ◽  
Kelly Riha ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Time Varying ◽  
Research Projects ◽  
Different Types ◽  
Challenging Environment ◽  
Aerial Vehicle

Many challenges surround the engineeringdesign process of an unmanned aerial vehicle (UAV). Thispaper describes a composite of a capstone and tworesearch projects for the design of a navigation subsystemfor a UAV. These projects address control, stabilizationand autonomy of the vehicle with time-varying, nonlineardynamics in a challenging environment and variablepayloads. The paper provides theoretical and practicalsolutions, as well as alternatives to current controlapproaches for UAVs. The results are intended for thedesign of a UAV that can be used for different types ofoperations such as connecting isolated remotecommunities and reinforcing the sovereignty of countrieswithin their borders, without requiring traditional meansof protection.

scholarly journals Utilizing drone technology in the civil engineering

2019 ◽  
Vol 14 (1) ◽  
pp. 27-37
Author(s):  
Matúš Tkáč ◽  
Peter Mésároš
Keyword(s):  
Real Time ◽  
Unmanned Aerial Vehicle ◽  
Civil Engineering ◽  
Aerial Images ◽  
General Overview ◽  
Aerial Photogrammetry ◽  
Different Types ◽  
Aerial Vehicle

Abstract An unmanned aerial vehicle (UAVs), also known as drone technology, is used for different types of application in the civil engineering. Drones as a tools that increase communication between construction participants, improves site safety, uses topographic measurements of large areas, with using principles of aerial photogrammetry is possible to create buildings aerial surveying, bridges, roads, highways, saves project time and costs, etc. The use of UAVs in the civil engineering can brings many benefits; creating real-time aerial images from the building objects, overviews reveal assets and challenges, as well as the broad lay of the land, operators can share the imaging with personnel on site, in headquarters and with sub-contractors, planners can meet virtually to discuss project timing, equipment needs and challenges presented by the terrain. The aim of this contribution is to create a general overview of the use of UAVs in the civil engineering. The contribution also contains types of UAVs used for construction purposes, their advantages and also disadvantages.

The estimation algorithm of operative capabilities of complex countermeasures to resist UAVs

SIMULATION ◽  
2018 ◽  
Vol 95 (6) ◽  
pp. 569-573
Author(s):  
Igor Korobiichuk ◽  
Yuriy Danik ◽  
Oleksyj Samchyshyn ◽  
Sergiy Dupelich ◽  
Maciej Kachniarz
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Estimation Algorithm ◽  
Probability Of Detection ◽  
Software Implementation ◽  
Observation Model ◽  
Different Types ◽  
Aerial Vehicle ◽  
Use Efficiency ◽  
Time Required

The proposed observation model provides for calculating the probability of detection of different types of unmanned aerial vehicle (UAV) at a certain range with regard to their tactical and technical characteristics and security equipment capabilities. The comparison of the obtained values of generalized indicators of security equipment use efficiency is based on a specified criterion. To take into account factors that significantly affect a modeling object, calculations are carried out under specified conditions and restrictions. UAVs should be detected until a covering object gets in a swath width given the time required for countermeasures. Based on the software implementation of the algorithm we have evaluated the efficiency of use of hypothetical security equipment for detecting certain types of UAVs, and defined means of further use or improvement.

scholarly journals Long endurance electric multirotor Unmanned Aerial Vehicle

2020 ◽  
Vol 32 ◽  
pp. 99-109
Author(s):  
Dimo Zafirov
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Flight Time ◽  
Different Types ◽  
Aerial Vehicle ◽  
Long Endurance

The article presents an algorithm for development of a Long endurance electric multirotor unmanned aerial vehicle. Calculations for usage of different types of electric batteries have been made and dependencies of flight time for different weights of batteries have been obtained. Options for quadcopter and sixcopter have been considered.

scholarly journals Unmanned aerial vehicle abstraction layer: An abstraction layer to operate unmanned aerial vehicles

2020 ◽  
Vol 17 (4) ◽  
pp. 172988142092501
Author(s):  
Fran Real ◽  
Arturo Torres-González ◽  
Pablo Ramón-Soria ◽  
Jesús Capitán ◽  
Aníbal Ollero
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Unmanned Aerial Vehicle ◽  
European Research ◽  
Aerial Robotics ◽  
Research Projects ◽  
Continuous Development ◽  
Abstraction Layer ◽  
Development Framework ◽  
Aerial Vehicles ◽  
Aerial Vehicle

This article presents a software layer to abstract users of unmanned aerial vehicles from the specific hardware of the platform and the autopilot interfaces. The main objective of our unmanned aerial vehicle abstraction layer (UAL) is to simplify the development and testing of higher-level algorithms in aerial robotics by trying to standardize and simplify the interfaces with the unmanned aerial vehicles. Unmanned aerial vehicle abstraction layer supports operation with PX4 and DJI autopilots (among others), which are current leading manufacturers. Besides, unmanned aerial vehicle abstraction layer can work seamlessly with simulated or real platforms and it provides calls to issue standard commands such as taking off, landing or pose, and velocity controls. Even though unmanned aerial vehicle abstraction layer is under continuous development, a stable version is available for public use. We showcase the use of unmanned aerial vehicle abstraction layer with a set of applications coming from several European research projects, where different academic and industrial entities have adopted unmanned aerial vehicle abstraction layer as a common development framework.

scholarly journals APPROXIMATE ASSESSMENT OF THE OPERATIONAL PERFORMANCES OF AN UNMANNED AERIAL VEHICHLE ACCORDING TO ITS FLIGHT DATA

Aviation ◽  
2016 ◽  
Vol 19 (4) ◽  
pp. 187-193 ◽  
Author(s):  
Valeriy Silkov ◽  
Mykola Delas
Keyword(s):  
Fuel Consumption ◽  
Unmanned Aerial Vehicle ◽  
Comparative Assessment ◽  
Flight Duration ◽  
Flight Data ◽  
Flight Range ◽  
Different Types ◽  
Aerial Vehicle ◽  
Drag Ratio ◽  
Lift To Drag Ratio

The article is dedicated to the substantiation of the complex parameter that characterizes the technical level of an unmanned aerial vehicle (UAV). This parameter includes the maximum lift-to-drag ratio, propeller efficiency, specific fuel consumption, and other components, on which the main flight characteristics, such as flight range and flight duration, depend. To make a comparative assessment of UAVs of different types, a special scale is developed.

scholarly journals Fault-Tolerant Time-Varying Formation Tracking Control for Unmanned Aerial Vehicle Swarm Systems with Switching Topologies

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Ran Zhen ◽  
Yating Jin ◽  
Xiaojing Wu ◽  
Xueli Wu ◽  
Xuan Lv
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Tracking Control ◽  
Fault Tolerant ◽  
Time Varying ◽  
Actuator Faults ◽  
Control Protocol ◽  
Switching Topologies ◽  
Formation Tracking ◽  
Uav Swarm ◽  
Aerial Vehicle

This paper investigates fault-tolerant time-varying formation tracking control problems for unmanned aerial vehicle (UAV) swarm systems with switching topologies. Actuator faults such as loss of effectiveness and bias fault are mainly considered. Firstly, based on graph theory, an adaptive fault-tolerant time-varying formation tracking control protocol is constructed with adaptive updating parameters and the relative information of the neighboring UAVs, and the feasibility condition for formation tracking is given. The control protocol does not depend on the information of the actuator fault boundary by using adaptive technology. Then, by constructing a reasonable Lyapunov function and solving the algebraic Riccati equation, the stability of the designed controller is proved. For UAV swarm systems with switching topologies and actuator faults, the formation tracking control protocol designed is adopted to enable the followers form the desired time-varying formation and track the leader’s status at the same time. Finally, the simulation examples are given to illustrate the effectiveness of the theoretical results.

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