On the development of a small hand-held multi-UAV platform for surveillance and monitoring

Avellar, Gustavo S. C.; Thums, Goncalo Daniel; Lima, Rogerio R.; Iscold, Paulo; Tôrres, Leonardo A. B.; Pereira, Guilherme A. S.

doi:10.1109/icuas.2013.6564715

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…This makes it possible to conclude that wing W 2 will be more efficient at the design cruising speed of 55 km/h [12]. The calculation of power unit performance (Fig.…”

Section: Discussionmentioning

confidence: 99%

Improvement Solutions and Methodology of UAV Micro-class Aerodynamic Characteristics

Urbahs

Petrovs

Urbaha

et al. 2014

Transport and Aerospace Engineering

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-The paper contains the analysis of basic features characterizing the development and modernization of micro-class unmanned aerial vehicle (UAV) performance characteristics. The UAV is mainly used for environmental monitoring and for the monitoring of different industrial facilities. The study offers the ways of modernizing the UAV embodiment. It considers the methodology for improving UAV aerodynamic and structural characteristics by using modern calculation methods. The study also includes a theoretical investigation and computer simulation of aerodynamic characteristics.

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“…This makes it possible to conclude that wing W 2 will be more efficient at the design cruising speed of 55 km/h [12]. The calculation of power unit performance (Fig.…”

Section: Discussionmentioning

confidence: 99%

Improvement Solutions and Methodology of UAV Micro-class Aerodynamic Characteristics

Urbahs

Petrovs

Urbaha

et al. 2014

Transport and Aerospace Engineering

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“…The camera was pointing down. This testbed is described in detail in [ 22 ]. Considering that the task would be executed at a height of

m and that an overlap of 30% between two consecutive images is required, we use Equation ( 1 ) to find the distance between coverage rows to be

m. The area to be covered was chosen to have approximate dimensions of

, as shown in Figure 12 , where the area and the coverage rows are overlaid on a Google Earth satellite image.…”

Section: Real-world Experimentsmentioning

confidence: 99%

Multi-UAV Routing for Area Coverage and Remote Sensing with Minimum Time

Avellar

Pereira

Pimenta

et al. 2015

Sensors

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238

149

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This paper presents a solution for the problem of minimum time coverage of ground areas using a group of unmanned air vehicles (UAVs) equipped with image sensors. The solution is divided into two parts: (i) the task modeling as a graph whose vertices are geographic coordinates determined in such a way that a single UAV would cover the area in minimum time; and (ii) the solution of a mixed integer linear programming problem, formulated according to the graph variables defined in the first part, to route the team of UAVs over the area. The main contribution of the proposed methodology, when compared with the traditional vehicle routing problem’s (VRP) solutions, is the fact that our method solves some practical problems only encountered during the execution of the task with actual UAVs. In this line, one of the main contributions of the paper is that the number of UAVs used to cover the area is automatically selected by solving the optimization problem. The number of UAVs is influenced by the vehicles’ maximum flight time and by the setup time, which is the time needed to prepare and launch a UAV. To illustrate the methodology, the paper presents experimental results obtained with two hand-launched, fixed-wing UAVs.

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“…Logging (Non-critical) 10Hz Aerial Vehicles (UAVs) [21], biomedical devices [22], and automotive systems [23]. As a motivating example, we describe the design of a UAV inspired by the Paparazzi project [24].…”

Section: Multi-rate Mixed-criticality Synchronous Task Modelmentioning

confidence: 99%

Relaxing the synchronous approach for mixed-criticality systems

Yip

Kuo

Roop

et al. 2014

2014 IEEE 19th Real-Time and Embedded Technology and Applications Symposium (RTAS)

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Abstract-Synchronous languages are widely used to design safety-critical embedded systems. These languages are based on the synchrony hypothesis, asserting that all tasks must complete instantaneously at each logical time step. This assertion is, however, unsuitable for the design of mixed-criticality systems, where some tasks can tolerate missed deadlines. This paper proposes a novel extension to the synchronous approach for supporting three levels of task criticality: life, mission, and non-critical. We achieve this by relaxing the synchrony hypothesis to allow tasks that can tolerate bounded or unbounded deadline misses. We address the issue of task communication between multirate, mixed-criticality tasks, and propose a deterministic lossless communication model. To maximize system utilization, we present a hybrid static and dynamic scheduling approach that executes schedulable tasks during slack time. Extensive benchmarking shows that our approach can schedule up to 15% more task sets and achieve an average of 5.38% better system utilization than the Early-Release EDF (ER-EDF) approach. Tasks are scheduled fairer under our approach and achieve consistently higher execution frequencies, but require more preemptions.

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On the development of a small hand-held multi-UAV platform for surveillance and monitoring

Cited by 6 publications

References 21 publications

Improvement Solutions and Methodology of UAV Micro-class Aerodynamic Characteristics

Improvement Solutions and Methodology of UAV Micro-class Aerodynamic Characteristics

Multi-UAV Routing for Area Coverage and Remote Sensing with Minimum Time

Relaxing the synchronous approach for mixed-criticality systems

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