scholarly journals Deployment issues of unmanned aerial vehicles in an urban environment

2009 ◽  
Author(s):  
Boon Keat Goh
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
Aerial Vehicles

scholarly journals Collective Perception Using UAVs: Autonomous Aerial Reconnaissance in a Complex Urban Environment

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2926
Author(s):  
Petr Stodola ◽  
Jan Drozd ◽  
Karel Šilinger ◽  
Jan Hodický ◽  
Dalibor Procházka
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
Computer Simulations ◽  
Optimal Solutions ◽  
Uneven Terrain ◽  
Area Of Interest ◽  
Aerial Vehicles ◽  
Benchmark Instances ◽  
Aerial Reconnaissance

This article examines autonomous reconnaissance in a complex urban environment using unmanned aerial vehicles (UAVs). Environments with many buildings and other types of obstacles and/or an uneven terrain are harder to be explored as occlusion of objects of interest may often occur. First, in this article, the problem of autonomous reconnaissance in a complex urban environment via a swarm of UAVs is formulated. Then, the algorithm based on the metaheuristic approach is proposed for a solution. This solution lies in deploying a number of waypoints in the area of interest to be explored, from which the monitoring is performed, and planning the routes for available UAVs among these waypoints so that the monitored area is as large as possible and the operation as short as possible. In the last part of this article, two types of main experiments based on computer simulations are designed to verify the proposed algorithms. The first type focuses on comparing the results achieved on the benchmark instances with the optimal solutions. The second one presents and discusses the results obtained from a number of scenarios, which are based on typical reconnaissance operations in real environments.

scholarly journals Safety Of Drones Flows In Conditions Of Their Mass Use In The City

2020 ◽  
pp. 369-376
Author(s):  
Vladyslav Ershov ◽  
◽  
Serhiy Nedilko ◽  
Oleksiy Izvalov ◽  
Vilaliy Nedilko ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
The Past ◽  
Aerial Vehicles ◽  
The World ◽  
Legislative Framework ◽  
The City

In the sphere of entertainment, drones have become much more accessible over the past two years and have received a set of serious instruments - cameras, autopilots, etc. Their cost became acceptable, the functionality grew, management became easier. All over the world, rules are being developed and implemented for the use of unmanned aerial vehicles to regulate flights and eliminate potential dangers. Actual is the analysis of the legislative framework for the flight of drones of various countries, as well as the development of the concept of safe flight of a large number of drones in the urban environment.

scholarly journals Calculation of the Ground Casualty Risk during Aerial Work of Unmanned Aerial Vehicles in the Urban Environment

2020 ◽  
Vol 44 ◽  
pp. 271-275 ◽  
Author(s):  
Viliam Ažaltovič ◽  
Iveta Škvareková ◽  
Pavol Pecho ◽  
Branislav Kandera
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
Aerial Vehicles

scholarly journals Visibility trials of unmanned aerial vehicles (Drones) by commercial X-band radar in sub-urban environment

2017 ◽  
Author(s):  
Gaspare Galati ◽  
Gabriele Pavan ◽  
Francesco De Palo ◽  
Daniele Latini ◽  
Francesco Carbone ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
Aerial Vehicles ◽  
X Band

Fast and efficient visible trajectories planning for the Dubins UAV model in 3D built-up environments

Robotica ◽  
2013 ◽  
Vol 32 (1) ◽  
pp. 143-163 ◽  
Author(s):  
Oren Gal ◽  
Yerach Doytsher
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Environment ◽  
Trajectory Planning ◽  
Analytic Solution ◽  
Urban Environments ◽  
Planning Method ◽  
Time Step ◽  
Environment Model ◽  
Aerial Vehicles ◽  
Velocity Obstacle

SUMMARYIn this paper, we study the visible trajectories planning for unmanned aerial vehicles (UAVs) modeled with a Dubins airplane in 3D urban environments. Our method is based on a fast and exact spatial visibility analysis of the 3D visibility problem from a viewpoint in 3D built-up environments. We consider the 3D urban environment buildings modeled as cubes (3D boxes) and present an analytic solution to the visibility problem. Based on an analytic solution, the algorithm computes the exact visible and hidden parts from a viewpoint in the urban environment. We present a local trajectory planner generating the most visible trajectory in a known 3D urban environment model, taking into account the dynamic and kinematic UAV constraints. The planner computes, at each time step, the next UAV's attainable velocities and explores the most visible node, while avoiding buildings as static obstacles in the environments, using the velocity obstacle method. The visibility type of the trajectory can be configured beforehand as visible roofs and surfaces in the environments. We demonstrate our visibility and trajectory planning method in simulations in several 3D urban environments, showing visible trajectory planning capabilities.

Development of thickened semi-synthetic engine oil M-5z / 20 AERO for four-stroke gasoline engines aircraft piston of unmanned aerial vehicles (UAVs)

2020 ◽  
Vol 06 ◽  
pp. 44-47
Author(s):  
A.A. Moykin ◽  
◽  
A.S. Medzhibovsky ◽  
S.A. Kriushin ◽  
M.V. Seleznev ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Engine Oil ◽  
Motor Oil ◽  
Gasoline Engines ◽  
State Research Institute ◽  
Technical Requirements ◽  
Aerial Vehicles ◽  
State Research ◽  
Industrial Batch ◽  
The Russian Federation

Nowadays, the creation of remotely-piloted aerial vehicles for various purposes is regarded as one of the most relevant and promising trends of aircraft development. FAU "25 State Research Institute of Chemmotology of the Ministry of Defense of the Russian Federation" have studied the operation features of aircraft piston engines and developed technical requirements for motor oil for piston four-stroke UAV engines, as well as a new engine oil M-5z/20 AERO in cooperation with NPP KVALITET, LLC. Based on the complex of qualification tests, the stated operational properties of the experimental-industrial batch of M-5z/20 AERO oil are generally confirmed.

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