scholarly journals Unmanned Aerial Vehicles for Wildland Fires: Sensing, Perception, Cooperation and Assistance

Drones ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 15
Author(s):  
Moulay A. Akhloufi ◽  
Andy Couturier ◽  
Nicolás A. Castro
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Wildland Fire ◽  
Fire Intensity ◽  
Economic Losses ◽  
Small Scale ◽  
Environmental Damage ◽  
Unmanned Aerial Systems ◽  
Wildland Fires ◽  
Natural Risk ◽  
Aerial Vehicles

Wildfires represent a significant natural risk causing economic losses, human death and environmental damage. In recent years, the world has seen an increase in fire intensity and frequency. Research has been conducted towards the development of dedicated solutions for wildland fire assistance and fighting. Systems were proposed for the remote detection and tracking of fires. These systems have shown improvements in the area of efficient data collection and fire characterization within small-scale environments. However, wildland fires cover large areas making some of the proposed ground-based systems unsuitable for optimal coverage. To tackle this limitation, unmanned aerial vehicles (UAV) and unmanned aerial systems (UAS) were proposed. UAVs have proven to be useful due to their maneuverability, allowing for the implementation of remote sensing, allocation strategies and task planning. They can provide a low-cost alternative for the prevention, detection and real-time support of firefighting. In this paper, previous works related to the use of UAV in wildland fires are reviewed. Onboard sensor instruments, fire perception algorithms and coordination strategies are considered. In addition, some of the recent frameworks proposing the use of both aerial vehicles and unmanned ground vehicles (UGV) for a more efficient wildland firefighting strategy at a larger scale are presented.

Image Processing and Localization for Detecting and Tracking Wildland Fires

2015 ◽  
Author(s):  
Anoop Sathyan ◽  
Manish Kumar ◽  
Kelly Cohen
Keyword(s):  
Image Processing ◽  
Unmanned Aerial Vehicles ◽  
Wildland Fire ◽  
Wildland Fires ◽  
Geological Data ◽  
Human Presence ◽  
Aerial Vehicles ◽  
Digital Elevation ◽  
Video Feed ◽  
Elevation Model

Unmanned Aerial Vehicles (UAVs) are being used for a wide variety of applications including detecting and tracking wildland fires. Using UAVs for fire-fighting purposes reduces the human involvement for this high risk job. Such a mission involves locating the wildland fire, tracking the direction of spread of the fire and searching for human presence in the region. This paper investigates the algorithmic development for the use of UAVs to detect and track wildland fires. This would involve using the fuzzy toolbox in MATLAB along with MICRODEM, a software which provides the Digital Elevation Model (DEM) for the region. The objective of this research is to accomplish the following: 1) use genetic fuzzy based image processing tools to identify fire from the video feed obtained from the camera attached to the UAV in real time 2) look for human presence in the region and 3) estimate the location of the fire based on the geological data available for the region.

LIGHTER-THAN-AIR (LTA) UNMANNED AERIAL SYSTEM (UAS) CARRIER CONCEPT FOR SURVAILLANCE AND DISASTER MANAGEMENT

2019 ◽  
Vol 3 ◽  
pp. 1255
Author(s):  
Ahmad Salahuddin Mohd Harithuddin ◽  
Mohd Fazri Sedan ◽  
Syaril Azrad Md Ali ◽  
Shattri Mansor ◽  
Hamid Reza Jifroudi ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Disaster Management ◽  
Unmanned Aerial Systems ◽  
Unmanned Aerial System ◽  
Border Control ◽  
Aerial Vehicles ◽  
Operational Safety ◽  
In Situ Methods ◽  
Aerial Systems

Unmanned aerial systems (UAS) has many advantages in the fields of SURVAILLANCE and disaster management compared to space-borne observation, manned missions and in situ methods. The reasons include cost effectiveness, operational safety, and mission efficiency. This has in turn underlined the importance of UAS technology and highlighted a growing need in a more robust and efficient unmanned aerial vehicles to serve specific needs in SURVAILLANCE and disaster management. This paper first gives an overview on the framework for SURVAILLANCE particularly in applications of border control and disaster management and lists several phases of SURVAILLANCE and service descriptions. Based on this overview and SURVAILLANCE phases descriptions, we show the areas and services in which UAS can have significant advantage over traditional methods.

Optimizing Perimeter Surveillance Drones to enhance the security system of unmanned aerial vehicles

2021 ◽  
Vol 2 (2) ◽  
pp. 105-115
Author(s):  
Mahmod Al-Bkree
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Security System ◽  
Small Scale ◽  
Security Systems ◽  
Ongoing Research ◽  
Aerial Vehicles ◽  
Aerial Vehicle ◽  
Initial Results

This work is to optimize perimeter surveillance and explore the distribution of ground bases for unmanned aerial vehicles along the Jordanian border and optimize the set of technologies for each aerial vehicle. This model is part of ongoing research on perimeter security systems based on unmanned aerial vehicles. The suggested models give an initial insight about selecting technologies carried by unmanned aerial vehicles based on their priority; it runs for a small scale system that can be expanded, the initial results show the need for at least four ground bases along the length of the border, and a selected set of various technologies for each vehicle.

scholarly journals Economic Impacts on Human Health Resulting from the Use of Mercury in the Illegal Gold Mining in the Brazilian Amazon: A Methodological Assessment

2021 ◽  
Vol 18 (22) ◽  
pp. 11869
Author(s):  
Leonardo Barcellos de Bakker ◽  
Pedro Gasparinetti ◽  
Júlia Mello de Queiroz ◽  
Ana Claudia Santiago de Vasconcellos
Keyword(s):  
Human Health ◽  
Gold Mining ◽  
Economic Value ◽  
Brazilian Amazon ◽  
Economic Losses ◽  
Small Scale ◽  
Environmental Damage ◽  
Statistical Life ◽  
Life Years ◽  
Methodological Assessment

Artisanal small-scale gold mining (ASGM) in the Amazon results in the dumping of tons of mercury into the environment annually. Despite consensus on the impacts of mercury on human health, there are still unknowns regarding: (i) the extent to which mercury from ASGM can be dispersed in the environment until it becomes toxic to humans; and (ii) the economic value of losses caused by contamination becomes evident. The main objective of this study is to propose a methodology to evaluate the impacts of ASGM on human health in different contexts in the Brazilian Amazon. We connect several points in the literature based on hypotheses regarding mercury dispersion in water, its transformation into methylmercury, and absorption by fish and humans. This methodology can be used as a tool to estimate the extent of environmental damage caused by artisanal gold mining, the severity of damage to the health of individuals contaminated by mercury and, consequently, can contribute to the application of fines to environmental violators. The consequences of contamination are evaluated by dose-response functions relating to mercury concentrations in hair and the development of the following health outcomes: (i) mild mental retardation, (ii) acute myocardial infarction, and (iii) hypertension. From disability-adjusted life years and statistical life value, we found that the economic losses range from 100,000 to 400,000 USD per kilogram of gold extracted. A case study of the Yanomami indigenous land shows that the impacts of mercury from illegal gold mining in 2020 totaled 69 million USD, which could be used by local authorities to compensate the Yanomami people.

scholarly journals DÜNYA BASININDA TÜRKİ YE’Nİ N S/İ HA GÜCÜ VE KÜRESEL Sİ YASETE YANSIMALARI

2021 ◽  
pp. 202-229
Author(s):  
Elif Nur TAŞ ◽  
Zeynep PARALI ◽  
Hatice Nur ÇETİN
Keyword(s):  
Unmanned Aerial Vehicles ◽  
National Development ◽  
Global Politics ◽  
Technological Innovations ◽  
Unmanned Aerial Systems ◽  
Main Question ◽  
Economic Interests ◽  
General Terms ◽  
Aerial Vehicles ◽  
Aerial Systems

Technological innovations in the 􀏐ield of informatics, rapid developments in subjects such as arti􀏐icial intelligence and robotic engineering have put Unmanned Aerial Vehicles (UAV) and Armed Unmanned Aerial Vehicles (UCAV) into the battle􀏐ield of the 21st century. At this point, states whose common concerns are security have taken the path of both obtaining intelligence and developing unmanned aerial systems, whose use is rapidly increasing in the 􀏐ield of war-defense. It is known that many countries are currently working on developing and producing UAVs, beside United States of America (USA) and Israel which both have advanced unmanned aerial systems. Because states that are developing and manufacturing their own unmanned aerial systems are aware that this situation will provide a strategic advantage in terms of their military, political and economic interests. In this context, Turkey didn’t stay indifferent to the developments of unmanned aerial systems emerging in each passing day, it has made considerable momentum towards the last 􀏐ifteen years to develop national and indigenous UAV systems. Especially since mid-2010, these systems have been used ef􀏐iciently in both intra border operations and crossborder operations The main question of this article is how Turkey’s UAV/UCAV power is re􀏐lected in global politics and in this direction, world press will be scanned. In this context, this study will primarily explained by Turkey’s domestic and national development of unmanned aerial systems adventure in general terms; then Turkey’s use of these vehicles in where and for what purpose will be evaluated. Afterward it will be evaluated that how Turkey’s power of UAV/UCAV is perceived by other states in economic and military-political aspects by examining the relevant state press and publishing organizations Keywords: Turkey, Unmanned Aerial Vehicles, Unmanned Combat Aerial Vehicles, Press- Publishing Organizations.

scholarly journals A Comparison of Isolated and Ducted Fixed-Pitch Propellers under Non-Axial Inflow Conditions

Aerospace ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 112
Author(s):  
Michael Cerny ◽  
Christian Breitsamter
Keyword(s):  
Flow Field ◽  
Unmanned Aerial Vehicles ◽  
Systematic Investigation ◽  
Major Influence ◽  
Small Scale ◽  
Highly Efficient ◽  
Strong Interest ◽  
Aerial Vehicles ◽  
Inflow Conditions ◽  
Fixed Pitch

A strong interest in highly-efficient, small-scale propeller configurations can be recognized, especially due to the currently growing number of and usage possibilities for unmanned aerial vehicles (UAVs). Although a variety of different propulsion concepts already exist on the market or are discussed in the literature, there is still a demand for a systematic investigation to compare such configurations, in particular, small-scale propellers with a fixed pitch, which are analyzed in this work. Therefore, different configurations of small-scale propellers with a fixed pitch are analyzed in this paper. They were operated as isolated single propellers and as ducted propellers in a cylindrical wing. Furthermore, due to their flight envelope, UAVs are likely to operate at highly inclined inflow conditions and even under reverse inflow. These non-axial inflow conditions have a major influence on the flow field around a propeller. In order to investigate this influence, all analyses were performed at a range of inflow angles in relation to the propeller axis from αdisc=0° to 180°.

scholarly journals PARADIGM OF RESISTANCE TO INTELLIGENCE AND IMPACT UNLIMITED AIRCRAFT COMPLEXES

2020 ◽  
pp. 73-90
Author(s):  
D. A. Ishchenco ◽  
V. A. Kyryliuk ◽  
S. D. Ishchenco ◽  
L. M. Maryshchuk
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Subject Area ◽  
Unmanned Vehicles ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Unmanned Aerial Systems ◽  
Military Equipment ◽  
Aircraft Systems ◽  
Aerial Vehicles ◽  
Aerial Systems

The work shows the relevance of the problem of countering reconnaissance and strike unmanned aircraft systems and the need to improve the scientific and methodological support of its solution according to a certain corresponding paradigm. In the work as a paradigm of countering unmanned aerial systems, it is proposed to consider a conceptual theoretical and methodological model of combating unmanned aerial vehicles, which currently provides opportunities for identifying the problems of developing forces and means of countering unmanned aerial systems. The developed paradigm of counteraction can be an element of scientific and methodological support, contributes to the solution of the problem of the complex use of forces and means of counteraction to reconnaissance and strike unmanned aircraft systems in order to acquire the capabilities of troops (forces) to perform tasks as intended in the conditions of the use of unmanned vehicles. The recognition of such a paradigm by specialists determines that their activities are based on the accepted model of countering unmanned aircraft systems, using the same rules and standards established in the industry. The generality and consistency of approaches that they provide are prerequisites for ensuring the required scientific level of a certain direction of research. The proposed approach outlines the tasks, content, components, principles of assessment of means of counteraction to unmanned aerial vehicles by contributing to the effectiveness of the system of protection of the object from reconnaissance and strike (shock) systems of the enemy, which systematizes knowledge in the subject area. problems of modern armed struggle. The prospect of further research is to clarify the mathematical calculations in accordance with the characteristics of troops (forces), military facility, protection system against reconnaissance and strike (strike) unmanned aerial vehicles of the enemy and samples of military equipment that are part of it.

scholarly journals Estimating Suppression Expenditures for Individual Large Wildland Fires

2007 ◽  
Vol 22 (3) ◽  
pp. 188-196 ◽  
Author(s):  
Krista M. Gebert ◽  
David E. Calkin ◽  
Jonathan Yoder
Keyword(s):  
Wildland Fire ◽  
Fire Suppression ◽  
The United States ◽  
Primary Objective ◽  
Fiscal Year ◽  
Fire Intensity ◽  
Intensity Level ◽  
Policy Debate ◽  
Wildland Fires ◽  
Area Burned

Abstract The extreme cost of fighting wildland fires has brought fire suppression expenditures to the forefront of budgetary and policy debate in the United States. Inasmuch as large fires are responsible for the bulk of fire suppression expenditures, understanding fire characteristics that influence expenditures is important for both strategic fire planning and onsite fire management decisions. These characteristics then can be used to produce estimates of suppression expenditures for large wildland fires for use in wildland fire decision support or after-fire reviews. The primary objective of this research was to develop regression models that could be used to estimate expenditures on large wildland fires based on area burned, variables representing the fire environment, values at risk, resource availability, detection time, and National Forest System region. Variables having the largest influence on cost included fire intensity level, area burned, and total housing value within 20 mi of ignition. These equations were then used to predict suppression expenditures on a set of fiscal year 2005 Forest Service fires for the purpose of detecting “extreme” cost fires—those fires falling more than 1 or 2 SDs above or below their expected value.

scholarly journals The Use of Low-Cost Unmanned Aerial Vehicles in the Process of Building Models for Cultural Tourism, 3D Web and Augmented/Mixed Reality Applications

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5457 ◽  
Author(s):  
Tomasz Templin ◽  
Dariusz Popielarczyk
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Information Technologies ◽  
Mixed Reality ◽  
Low Cost ◽  
3D Models ◽  
Unmanned Aerial Systems ◽  
Aerial Vehicles ◽  
Building Models ◽  
Tourism Services ◽  
Smart Tourism

Unmanned Aerial Systems (UAS) are widely used in low-cost photogrammetry. Even small Unmanned Aerial Vehicles (UAV) can deliver valuable data for the inventory of inaccessible and dangerous areas or objects. The acquisition of data for 3D object modeling is a complicated, time-consuming, and cost-intensive process. It requires the use of expensive equipment and often manual work as well as professional software. These are major barriers limiting the development of modern tourist platforms that promote local attractions. Information technologies offer new opportunities for the development of the services market, including the development of smart tourism services, as an integral part of the smart city concept. 3D models are an important element of this process as they form the basis for the use of new visualization technologies, such as Virtual, Mixed, and Augmented Reality (VR/MR/AR). 3D modeling provides a new opportunity to use AR/MR technology to present information about objects, virtual tours of the historic buildings, and their promotion. It also creates an opportunity to preserve the architectural heritage and preventive maintenance of buildings. Despite the increasing use of new measuring platforms and computer modeling techniques, the implementation of 3D building models in smart tourism services is still limited, focusing more on the results of scientific projects rather than on the implementation of the new ones. The paper presents an universal methodology for the inventory of historical buildings using low-cost UAVs. It describes the most important aspects related to the process of planning UAV measurement missions and photogrammetric data acquisition. The construction of 3D models and the possibilities of their further use to build smart tourism services based on Web/AR/MR/VR technology was also presented.

scholarly journals Unmanned aerial vehicles reveal the impact of a total solar eclipse on the atmospheric surface layer

2019 ◽  
Vol 475 (2229) ◽  
pp. 20190212 ◽  
Author(s):  
Sean C. C. Bailey ◽  
Caleb A. Canter ◽  
Michael P. Sama ◽  
Adam L. Houston ◽  
Suzanne Weaver Smith
Keyword(s):  
Surface Layer ◽  
Unmanned Aerial Vehicles ◽  
Solar Eclipse ◽  
Atmospheric Surface Layer ◽  
Small Scale ◽  
Stable Layer ◽  
Holistic View ◽  
Near Surface ◽  
Aerial Vehicles ◽  
The Impact

We use unmanned aerial vehicles to interrogate the surface layer processes during a solar eclipse and gain a comprehensive look at the changes made to the atmospheric surface layer as a result of the rapid change of insolation. Measurements of the atmospheric surface layer structure made by the unmanned systems are connected to surface measurements to provide a holistic view of the impact of the eclipse on the near-surface behaviour, large-scale turbulent structures and small-scale turbulent dynamics. Different regimes of atmospheric surface layer behaviour were identified, with the most significant impact including the formation of a stable layer just after totality and evidence of Kelvin–Helmholtz waves appearing at the interface between this layer and the residual layer forming above it. The decrease in surface heating caused a commensurate decrease in buoyant turbulent production, which resulted in a rapid decay of the turbulence in the atmospheric surface layer both within the stable layer and in the mixed layer forming above it. Significant changes in the wind direction were imposed by the decrease in insolation, with evidence supporting the formation of a nocturnal jet, as well as backing of the wind vector within the stable layer.

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