Inspection and Maintenance of Railway Infrastructure with the Use of Unmanned Aerial Vehicles

2020 ◽  
Vol 64 (188) ◽  
pp. 115-127
Author(s):  
Piotr Lesiak

The paper discusses the application areas of UAVs and their regulations. Particular attention is paid to the inspection and maintenance of railway infrastructure. The use of UAVs in many railway networks around the world is reviewed. The implementation of autonomous solutions is highlighted. The safety of UAVs on railways is analysed and directions for their implementation at PKP PLK S.A. are indicated. Keywords: UAVs, inspection, infrastructure, railway, security

2017 ◽  
Vol 23 (3) ◽  
pp. 155-162 ◽  
Author(s):  
Jan Drozd ◽  
Zdeněk Flasar

Abstract Unmanned aerial vehicles, drones and other similar equipment are having a boom nowadays. Moreover, the usage of those modern technologies is also significant within armies. Unmanned aerial vehicles are extensively use within most of the military activities all over the world mainly on the battalion level and above. This paper is focused to discuss the usage of this technology on tactical level, particularly by squad and squad size units. The paper deals mainly with influence of unmanned aerial vehicles on troops leading procedure. The main methods of this paper are outcomes from the realized experiment. It shows on examples specific impact on all steps of the troops leading procedure. The experiment revealed interesting data and some possible conclusion were made. The primarily target of this paper is experience military personnel dealing with this topic. The paper should open broad discussion focused on all steps of troops leading procedure and outline the possible way of troops leading procedure update. Unmanned aerial vehicles, drones and other modern technology providing almost online information to the squad leader could significantly influence all steps of the troop leading procedure, safe preparation time as well as lives of the troops.


2020 ◽  
Vol 12 (1) ◽  
pp. 249-260
Author(s):  
Miroslav ŽENTEK ◽  
Pavel NEČAS

The end of the world bipolar division has reduced the likelihood of a threat of an atomic conflict, but at the same time it has released dormant conflicts. From that time, the phenomena that are not new, but their frequency, intensity, impact on human society have caused a change in the way they are perceived. In this context it is clear, that to ensure the sovereignty of the European airspace and specifically the one of the Slovak Republic, as a member of NATO, is the first priority task of the Air Force missions. To accomplish this, there will be significantly increased the requirements for processes automatization within Air C2 systems, in order to keep the necessary level of interoperability and to utilize and exploit both combat and reconnaissance unmanned aerial vehicles.


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Franciely Velozo Aragão ◽  
Fernanda Cavicchioli Zola ◽  
Luis Henrique Nogueira Marinho ◽  
Daiane Maria De Genaro Chiroli ◽  
Aldo Braghini Junior ◽  
...  

The disordered urban growth that may favour the emergence of the Aedes aegypti mosquito in cities is a problem of increasing magnitude in middle- and high-income countries in the tropical part of the world. Currently, the World Health Organization (WHO) considers the control and elimination of Ae. aegypti a world-wide high priority as it is the main vector of many rapidly spreading viral diseases, dengue in particular. A major difficulty in controlling the proliferation of this vector is associated with identification of the breeding sites. The use of Unmanned Aerial Vehicles (UAVs) can be an efficient alternative to manual search because of high mobility and the ability to overcome physical obstacles, particularly in urban areas where it can offer close-up images of potential breeding sites that are difficult to reach. The objective of this study was to find a way to select the most suitable UAV for the identification of Ae. aegypti habitats by providing images of potential mosquito breeding sites. This can be accomplished by a Multiple-Criteria Decision Method (MCDM) based on an Analytical Hierarchy Process (AHP) for the evaluation of weights of the criteria used for characterizing UAVs. The alternatives were analyzed and ranked using the Fuzzy Set Theory (FST) merged with the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The methodology is explained and discussed with respect to identification and selection of the most appropriate UAV for aerial mapping of Aedes breeding sites.


Author(s):  
R. M. Oliinyk ◽  
S. V. Tsilyna ◽  
Y. M. Zhyvets ◽  
O. V. Yermolenko

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 targets, while the modern line of drones consists of nano-, micro- and mini-devices flying at low altitudes. A comparative analysis of modern means of counteracting unmanned aerial vehicles and conclusions about the possibility of their use in the Armed Forces of Ukraine. The newest means of destruction of unmanned aerial vehicles of the leading countries of the world are considered. The issue of the possibility of blocking the work of enemy drones is covered in zones (areas) of hostilities. Ways to increase the effectiveness of small - scale unmanned aerial vehicles are proposed. Priorities in the implementation of programs for the development of modern domestic means of destruction of unmanned aerial vehicles can be considered the use of means of interception or destruction by electronic countermeasures. The relevance of the study lies in the analysis of the main available methods of control with unmanned aerial vehicles, development of perspective approaches and acquaintance with modern achievements and directions of development of means of struggle against drones applied by the enemy.


2020 ◽  
Vol 152 ◽  
pp. 72-81
Author(s):  
Aleksandr I. Ageev ◽  
◽  
Vadim A. Oleinikov ◽  
Vladimir B. Sychev ◽  
◽  
...  

The air cargo market is developing rapidly both in Russia and around the world. The use of unmanned aerial vehicles with vertical take-off and landing without an aerodrome base is becoming a promising area for air transportation of goods in remote regions. Companies around the world are intensively developing various types of unmanned aerial vehicles that are potentially capable to carry out cargo transportation. There are objective and subjective issues of their use that have to be solved at present. Russian developers offer promising innovative solutions that can have export potential, expand the range and areas of their application, and may be attractive for investment. Transportation of goods with the help of UAVs is expected to be cost-effective, which should result in business development, should increase jobs, strengthen the economy and infrastructure of hard-to-reach regions.


Author(s):  
Vladyslav Ershov ◽  
◽  
Serhiy Nedilko ◽  
Oleksiy Izvalov ◽  
Vilaliy Nedilko ◽  
...  

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.


Author(s):  
Siddhesh Mane

There is an overall lack of multipurpose aerial drones, or unmanned aerial vehicles (UAVs), around the world; and until recently, there was a lack of any feasible purposes for drones outside of military applications and those available in market has a very high cost associated with it. Drone technology has advanced to the point in which portable devices are now economically priced enough for civilians to afford as well as easy enough to use with little to no training; however, the main draw back with drones even today is the lack of flexibility n purposes. Most civilian drones are marketed for surveillance purposes only, making the purchaser the one responsible for the labor and economics of any type of design changes to allow for different or more functions. The problem then evolves itself to how to make an economical UAV that can be used for more than one purpose.


Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1517 ◽  
Author(s):  
Jan Farlik ◽  
Miroslav Kratky ◽  
Josef Casar ◽  
Vadim Stary

The fight against unmanned vehicles is nothing new; however, especially with the arrival of new technologies that are easily accessible for the wider population, new problems are arising. The deployment of small unmanned aerial vehicles (UAVs) by paramilitary organizations during conflicts around the world has become a reality, non-lethal “paparazzi” actions have become a common practice, and it is only a matter of time until the population faces lethal attacks. The basic prerequisite for direct defense against attacking UAVs is their detection. The authors of this paper analysed the possibility of detecting flying aircraft in several different electro-magnetic spectrum bands. Firstly, methods based on calculations and simulations were chosen, and experiments in laboratories and measurements of the exterior were subsequently performed. As a result, values of the radar cross section (RCS), the noise level, the surface temperature, and optical as well as acoustic traces of tested devices were quantified. The outputs obtained from calculated, simulated, and experimentally detected values were found via UAV detection distances using specific sensors working in corresponding parts of the frequency spectrum.


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