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Positioning mechanisms are required in order to improve antenna reception through a better orientation, reducing the physical interference produced by coupling of impedance, when orientation is made by hand. In this work, a positioning support for patch antennas was designed in order to know its effect over the patch antenna's performance. It is well-known that fabrication process of the antenna produces...
The Internet of Things (IoT) brings the issue of connecting an immense amount of diverse devices. This vast diversity will present a challenge for communications, since it is not expected that all devices will follow the same rules and standards to communicate back and forth, due to the difficulty and inefficiency of developing a unique set rules and standards for each device. A classification of...
Big Data environment is a computing area with a great growth. Today it is common that we hear about databases with huge volumes of information and also we hear about Data Mining and Business Intelligence projects related with these huge databases. However, in general, little attention has been given to the quality of the data. Here we propose and present innovative metrics and schema designed to perform...
In this paper we analyze the presence and effects of classical electromagnetic waves with frequencies under 3Hz; which will be further referred as Under Extremely Low Frequency band (UELFB) waves. The nature of such kind of waves is extreme, as they are larger than Earths diameter. Because of the lack of useful engineering applications, organizations like the IEEE or the ITU have not given an official...
In this paper we are interested in knowing, if a filter and a feature selection are used, the action recognition is improved. In the filter phase, Kalman filter and Savitzky-Golay filter are proposed to analyse skeleton acquired by the Kinect, in order to minimize the noise. In the phase of feature selection, the algorithm Reduction of Feature Dimensions based on Standard Deviation (RFD-SD) and Principal...
The goal of this research was to determine the brainwave patterns that characterize the movements of a hand. Measurements of the brainwaves of five students were taken using an electroencephalography sensor placed in the frontal lobe; data were collected while participants made a series of repetitive hand movements. The results proved the existence of a characteristic pattern of alpha, beta and gamma...
Artificial Intelligence area has penetrated the medical field with the purpose of supporting the automatic recognition of brain imaging. One of the diseases that has been increasing in the last decade are Brain Stroke, whose set of diseases, affect the cerebral blood vessels. Given that effects that can cause this type of disease, it is important to characterize the sources that generate medical images...
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
This article presents a comparison of two meta-heuristics techniques a) Artificial Bees Colony (ABC), and b) Genetic Algorithm (AG), for path planning problems. To validate the algorithms ten 2D maps were used each with different obstacles number and geometry. Results were compared according to the following measurements: 1) performance time and 2) length of the way. Results of the simulation show...
Two-dimensional mapping by unmanned aerial vehicles (UAV) is becoming a wide used technique. This technique is being applied to precision agriculture, 2D inspection, photogrammetry, etc. For all these areas is quite important to acquire the finer spatial resolution as possible. In this paper, we address the problem of computing the configuration of UAV and camera that optimizes the spatial resolution...
This paper addresses the dynamic modelling problem for the ECP-750 gyroscope, which is complex nonlinear system with four degrees-of-freedom. It has two actuated and two underactuated joints; the moving of the underactuated joints is the product of the dynamics generated by the actuated joints. The first step to obtain the dynamic model is to development the kinematic model using Denavit-Hartenberg...
In this paper, the dynamic and electric analysis of a novel electrostatically actuated microdevice is presented. This device consist of an arrangement of four parallel microcantilevers, which is fed with 1 V. The analysis was carried out by Finite Element Method (FEM) in Ansys Workbench in order to obtain: current intensity, temperature distribution, Joule effect, structural deformation, natural frequency,...
This paper deals with the position control of robot manipulators and the practical implementation trough a programming environment of control algorithms. A new hyperbolic-type control scheme is proposed. To ensure global asymptotic stability of closed-loop system equilibrium point, we propose an energy-shaping based strict Lyapunov function. Simulation results on two degrees-of-freedom robot manipulator...
The growing demand for rapid response to tasks that robotic systems carried out, makes us increasingly think about robust and fast approaches. This paper presents a novel approach based on modeling the task known as Time-to-contact, in order to forecast the time it would take for a robot to collide with a detected object. For this we use an statistical approach based on time series. In addition, the...
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