The use of unmanned aerial vehicles for land management, cadastre and urban planning

Ovchinnikova, N. G.; Medvedkov, D. A.

doi:10.23947/2413-1474-2019-3-1-98-108

Cited by 6 publications

(1 citation statement)

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“…The use of UAVs for surface monitoring provides a variety of advantages over other monitoring tools: high resolution of surface surveying due to low flight altitudes, efficient receiving and processing of information, environmental safety, etc. [1]. In fact, the effectiveness of surface monitoring depends on the range and duration of the UAV flight, thus giving rise to demand for UAVs to ensure increased flight range and duration.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Characteristics of a Straight Wing with a Spiroid Wingtip Device

Kravchenko

Loginov²,

Ukrainets

et al. 2021

Transactions on Aerospace Research

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Spiroid wingtip devices (WD) offer a promising way of improving the lift drag ratio of UAVs, but may on the other hand lead to negative aerodynamic interference of the wing with the WD and deterioration of the aerodynamic characteristics as compared to a wing without the WD. Determining the influence of the geometric parameters of a spiroid WD on aerodynamic wing characteristics, however, remains an understudied field. In our study, we investigated the influence of the following geometrical parameters on wing aerodynamic characteristics with WD: area, radius, camber angle, constriction, and pitch of the spiroid. We found that the positive effect of the WD is present at a relative radius > 0.05, as well as with an increase in the lift coefficient C L as a result of an increase in the proportion of inductive resistance. For example, with the Reynolds number Re = 2.1×105 for a rectangular wing with an aspect ratio θ = 5.12 equipped with a spiroid WD with =0.15 the quality gain is almost 10% at C L = 0.5, and at C L = 0.7 is almost 20% and at C L = 0.7 – almost 20% compared to a wing without WD. Moreover, we found that a change in the camber angle WD θ provides an increase in the derivative of the lift coefficient with respect to the angle of attack in the range from θ = 0° to θ = 130°. By changing the camber angle, it is possible to increase the lift drag ratio of the layout up to 7.5% at θ = 90° compared to θ = 0° at the Reynolds number Re = 2.1×105. From the point of view of ensuring maximum lift drag ratio and minimum inductive drag, the angle θ = 90° is the most beneficial.

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Section: Introductionmentioning

confidence: 99%

Aerodynamic Characteristics of a Straight Wing with a Spiroid Wingtip Device

Kravchenko

Loginov²,

Ukrainets

et al. 2021

Transactions on Aerospace Research

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Use of UAV to Resolve Construction Disputes

Shirina

Kalachuk

Shin

et al. 2021

Lecture Notes in Civil Engineering

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Application of unmanned aerial vehicles for solving engineering tasks

Bezmenov

Safin

Stepanov

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The article discusses the use of unmanned aerial vehicles in solving engineering tasks. Information about the current state of the market of unmanned aerial vehicles and services with their use is provided. The most frequently used unmanned aerial vehicles and their characteristics are considered. Modern methods of obtaining and principles of processing images obtained from unmanned aerial vehicles and trends towards further development of the aerial photography process are described. The results are presented: modeling the influence of angular elements of external orientation on the accuracy of the obtained spatial coordinates of terrain points; studies of determining the volume of soil and creating a three-dimensional model of an engineering object (building) based on aerial photography obtained from an unmanned aerial vehicle multicopter. The accuracy of determining the volume of soil was controlled using a digital terrain model obtained using a total station. Control of the accuracy of building a three-dimensional model of an engineering object was performed by comparing the distances between the points of the object obtained from the three-dimensional model and the total station measurements. As follows from the results of the article, an unmanned aerial vehicle can be an effective tool for solving some engineering problems. The results obtained are comparable to the accuracy of classical methods, provided that the correct choice of the type of unmanned aerial vehicle and the correct approach to processing obtained images.

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The use of unmanned aerial vehicles for land management, cadastre and urban planning

Cited by 6 publications

References 0 publications

Aerodynamic Characteristics of a Straight Wing with a Spiroid Wingtip Device

Aerodynamic Characteristics of a Straight Wing with a Spiroid Wingtip Device

Use of UAV to Resolve Construction Disputes

Application of unmanned aerial vehicles for solving engineering tasks

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