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In this work a electro-optical tracking system adapted for filming rocket launches is presented. The full system is described and the two specialized stages developed to withstand the difficulties of this particular application are detailed. The first stage is responsible for automatic target detection, this step is implemented and tested. The second stage is a predictive trajectory control with Kalman...
This paper covers the validation of a Vibrating Intrinsic Reverberation Chamber (VIRC) to be used for EMC measurements. Relevant concepts and issues are presented, followed by the description of a validation procedure based on the IEC 64000-4-21 standard. Results obtained in our VIRC are discussed, and ideas for future work are outlined.
In this paper the analysis of a Hybrid Active Power Filter for reactive and harmonic compensation in an industrial plant is presented. This proposal uses existing capacitor banks, which are transformed into passive filters which together with an active part form an adaptive and economic compensation system.
Nowadays, Argentina is experiencing an energy crisis mainly due to an inadequate planning. On the other hand, several countries are beginning to consider social aspects in planning, such as the use of nuclear energy, which has sparked considerable controversy in recent years. Thus, in this paper a novel strategic planning methodology is used in order to determine the most appropriate power system...
This is the implementation of a flow meter for very low flow rates, using a webcam and inverse dynamics controller applied to a system for obtaining activated carbon. Using MatLab ® program and implemented with a PIC microcontroller.
This work presents the development of a wireless sensor network (WSN), based on IEEE-802.15.4, in order to be used for frost characterization in precision agriculture by measuring temperature. Our key objective is to reduce the power consumption of the network to the minimum, allowing several measurement points per node and the remote monitoring of the sensors behaviour. For the communication interface...
The main goal of this publication is to position within the current international framework, development and manufacture of sensors IFOG (Interfometric Fiber Optic Gyroscope) type executed in CIOp. IFOGs are designed and intended for using as part of sub-systems for navigation, guidance and control of aerospace vehicles such as injectors or satellite platforms. Several international suppliers of instruments...
A control strategy for a low resonance frequency LCL filter used in the input stage of dc-dc bidirectional boost converters is proposed. The controller consists of a simple PI controller plus a linear filter added in series with the PI integrator term. The modified PI controller achieves the active damping of the LCL filter and allows to arbitrarily place the system closed-loop poles. The proposed...
Multi-label classification techniques have been developed for problems where objects can be associated to several disjoint labels, such as the scientific topics covered by a paper. However, these techniques tend to be computationally complex, which makes it difficult to use them in practice. Therefore, they might be unsuitable for large problems. This paper presents an approach to accelerate a well-know...
Vehicle and pedestrian risks can be modelled in order to advice drivers and persons. A good model requires the ability to adapt itself to several environmental variations and to preserve essential information about the area under scope. This paper aims to present a proposal based on a Machine Learning extension for timing named Harmonic Systems. A global description of the problem, its relevance and...
An excitation system for autonomous Induction generators supplying nonlinear loads is proposed. The presented system consists of an squirrel cage induction machine (IM) and a converter both connected in parallel. The converter has two functions, the first one is to provide the required reactive power for the excitation of the IM in order to regulate the generated voltage. The second one is to compensate...
I'm pleased to welcome you to the second biennial conference of IEEE Argentina, ARGENCON 2014, held in the city of Bariloche, one of the many beautiful cities located in Patagonia, Argentina.
In general, organochlorine pesticides detection involves complex and expensive procedures. The aim of this paper is to present an optimized design of a bacterial biosensor to quantify lindane at low concentrations (µg L−1) based on a Streptomyces sp. M7 spores platform employing impedance spectroscopy as the transduction method. Using this technique, the bacterial metabolic activity was evaluated...
The cyber physical systems (SCF) are a new field of knowledge, involving the electrical, electronics, computer engineering control and communications, and interact with physical processes. A key aspect in the development of cyber physical systems, modeling whole problem, the environment and the entities involved. In this paper the development of cyber- physical systems deepens from the point of view...
In this paper a topology of solid state transformer, direct current to alternate current, bidirectional, isolated, single stage, based on the principle of operation of the dual active bridge converters is presented. Its operating principle is explained, and a switching strategy is presented to reduce total harmonic distortion. Finally the simulation results are shown to evaluate the performance of...
We analyzed small deflections (∼1 µm) of an opaque object by means of the double-exposure digital holographic interferometry technique, using an off-axis lensless Fourier holographic arrangement. The deflections were caused by heating the object with a flowing dc current. In our holographic arrangement, out-of-plane displacements of around 300 nm can be precisely detected by using a He-Ne laser as...
Technical knowledge is an important asset of today's software development projects. Collaborative and content management environments, such as Wikis, are becoming common nowadays for capturing such knowledge and sharing it among the project stakeholders. However, different stakeholders are often interested in subsets of the whole document repository, depending on specific information needs or tasks...
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