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An Ethernet sniffer for On-line acquisition of EEG with the BrainNet36® device applied to a BCI

An Ethernet sniffer for On-line acquisition of EEG with the ...

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5th ISSNIP - IEEE Biosignals and Biorobotics Conference, BRC 2014

作者： Benevides, Alessandro Botti Atencio, Anibal Cotrina Castillo, Javier Filho, Teodiano Freire Bastos Benevides, Alessander Botti Electrical Engineering Post-Graduate Program Federal University of Espirito Santo Vitória Espírito Santo 29075-910 Brazil ICT Doctoral School University of Trento Trento Trentino 38123 Italy

ISBN: (纸本)9781479956890

This paper presents an Ethernet sniffer programmed in ANSI C to export in an on-line way the electroencephalographic (EEG) data acquired with the device BrainNet36®, which is a Brazilian EEG device for clinical and polysomnography purposes. The sniffer proved to be useful for off-line analysis of the EEG and also for on-line applications, as Brain Computer-Interfaces (BCIs). Despite its limitations and packet losses at around 1.7% due to noise, the off-line analysis of the EEG successfully replicated results of the literature regarding the Event-Related (De)Synchronization (ERD/ERS) and Evoked Potentials (EPs) calculated for mental tasks. For on-line applications the sniffer was used to program a single-switch BCI for on-line classification of motor and no motor mental tasks with high success rate. Nowadays, the BrainNet36® device is being used for EEG research at many Brazilian universities, therefore, we hope that this article may encourage on-line applications. Finally, as the sniffer operation is explained here with examples, this text may serve as a reference guide for potential user's. © 2014 IEEE.

关键词： Brain computer interface

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FPGA-based Implementation of Random Forest Classifier for sEMG Signal Classification 46

FPGA-based Implementation of Random Forest Classifier for sE...

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46th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBC 2024

作者： Martins, Wagner Bagesteiro, Leia B. Weber, Tiago O. Balbinot, Alexandre Universidade Federal do Rio Grande do Sul Post-Graduate Program in Electrical Engineering Porto Alegre Brazil San Francisco State University Department of Kinesiology San FranciscoCA United States

This paper proposes a method that combines a hardware description language and Random Forests theory, to develop a motion recognition embedded system. To validate this system, the Ninapro database DB2 was used as trai... 详细信息

ISBN: (纸本)9798350371499

关键词： Random forests

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Proposal for a Brazilian regulation of electromagnetic compatibility applied to automotive vehicles

Proposal for a Brazilian regulation of electromagnetic compa...

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IEEE International Symposium on Electromagnetic Compatibility (EMC)

作者： Artur N. de São José Úrsula C. Resende Magno A. de Menezes José H. Ferreira Electrical Engineering Post Graduate Program Federal Center for Technological Education of Minas Gerais Belo Horizonte Brazil Electrical Engineering Post Graduate Program Pontifical Catholic University Belo Horizonte Minas Gerais Brazil

For the last two decades, electro-electronic components have become more and more integrated into automotive vehicles, with an increasing importance in essential functions implying the safe overall operation of the car. Although these innovations come as a car performance improvement, it can also have adverse effects (some related to safety) in case of malfunction. These undesirable behaviors can be caused by Electromagnetic Interferences (EMI), and the probability increases when a large number of electro-electronic components act together in the same environment, causing failures that may damage part or the whole system. In Brazil, the Electromagnetic Compatibility (EMC) validation of these systems is currently a relative option and the decision of testing or not (and how deep) is up to each car manufacturer. Moreover, most of these validations are still realized out of Brazil, turning developments more expensive, more time-consuming and underusing Brazilian metrology chain. This paper proposes a study of the Brazilian automotive EMC validation context and a comparison with the worldwide scenario, taking into account its technical, economic and social impacts and bringing arguments to discuss a possible federal regulation. This electronic document is a “live” template and already defines the components of your paper [title, text, heads, etc.] in its style sheet.

关键词： Electromagnetic compatibility Automotive engineering Standards Automobiles Industries Government

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Assessment of applicability of robotic walker for post-stroke hemiparetic individuals through muscle pattern analysis

Assessment of applicability of robotic walker for post-strok...

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Biosignals and Biorobotics Conference (BRC), ISSNIP

作者： Flávia Aparecida Loterio John Jairo Villarejo Mayor Anselmo Frizera Neto Teodiano Freire Bastos Filho Post-Graduate Program in Biotechnology Federal University of Espirito Santo Vitoria Brazil Post-Graduate Program in Electrical Engineering Federal University of Espirito Santo Vitoria Brazil

Stroke is a leading cause of morbidity and mortality worldwide. In most patients, the stroke causes disabilities that hamper the performance of daily tasks autonomously. The most common clinical features in these individuals are hemiparesis, abnormal gait pattern, muscle spasticity and balance loss. There are several studies about the use of robotic devices in hemiparetic individuals, for example for rehabilitation. The robotic walker developed at UFES/Brazil will be assessed for its applicability, using Surface Electromyography (sEMG) to verify the muscle activation during the gait in individuals with post-stroke hemi-paresis. Preliminary tests are being made with the proposed methodology to analyse the robotic walker, but first using a conventional walker two frontal wheels as assistant gait. Two healthy volunteers performed initially a path without the aid of the walker and then with its aid along a flat straight route. sEMG signals are analyzed in order to assess the muscle activity during the gait. After analyzing the data, the results were compared between the free and assisted gait. With the use of the walker the gait speed in healthy volunteers was reduced and, consequently, changes occurred during activation of the muscles. Changes caused by shifting down are important due to improper adjustment of the height of the walker leads to gait changes. As future work, we intend assess the use of robotic walker in clinical trials.

关键词： Muscles Legged locomotion Electromyography Knee Electrodes Robot sensing systems

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Maximum Application of Power Point Tracker on Microcontroller Based Dual Energy Solar Powered Dryer 3rd

Maximum Application of Power Point Tracker on Microcontrolle...

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3rd International Conference on Experimental and Computational Mechanics in engineering, ICECME 2021

作者： Jalil, Saifuddin Muhammad Husaini Munadi, Rizal Sara, Ira Devi Doctoral Program School of Engineering Post Graduate Program Universitas Syiah Kuala Banda Aceh23111 Indonesia Department of Electrical and Computer Engineering Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Department of Mechanical Engineering Universitas Syiah Kuala Darussalam Banda Aceh23111 Indonesia Department of Electrical Universitas Malikussaleh Lhokseumawe24351 Indonesia

ISBN: (纸本)9789811936289

Solar-powered dryers are still expensive and difficult to obtain for farmers with medium to low production capacity. For this reason, it is necessary to develop technology on a solar-powered dryer with a solar panel capacity of 200WP is equipped with a maximum power point tracker as an integrated solar collector with a photovoltaic system. The system in this solar-powered dryer consists of a solar panel tracker, a rotating aluminum cylinder net, a photovoltaic tracker, a battery bank, a microcontroller, and a DC/AC inverter. This system improves the performance of solar panels in the drying process of Moringa leaves. This design is expect to be the right system to ensure maximum results by providing solar radiation energy in the drying process of agricultural products. The aims goal to minimize problems in the drying of agricultural products experienced by farmers using an automatic dual-energy solar-powered dryer as a development innovation for the drying process. This study uses an experimental methodology and field data collection using a solar-powered dryer that has been analyzed and measured to obtain data comparisons. shows the maximum data of voltage and power response in positioning photovoltaic to produce the increased output power of photovoltaic array. Maximum application of powerpoint tracker on microcontroller based dual energy solar powered dryer on solar panels for drying moringa leaves produces the advantage of maximum energy absorption in solar panels and shortens the time in the drying process of moringa leaves. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Microcontrollers

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Mobile robotics: A tool for interaction with children with autism

Mobile robotics: A tool for interaction with children with a...

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Christiane M. Goulart Javier Castillo Carlos T. Valadão Eliete Caldeira Teodiano F. Bastos-Filho Post-Graduate Program of Biotechnology Federal University of Espirito Santo Vitoria Brazil Post-Graduate Program of Electrical Engineering Federal University of Espirito Santo Vitoria Brazil

ISBN: (纸本)9781479924004

This paper presents an implementation with mobile robot to generate actions to interact with children with autism. The robot is able to detect the child localization and approach him/her, keeping a safe proximity minimum (interaction distance). The mobile robot is equipped with laser sensor to obtain distances and an embedded control system for the interaction. The implementation allows two modes of interaction, depending on the degree of interaction with the child. The system here developed can help children with autism in the process of social evolution and be a tool for professionals and researchers of the area.

关键词： Robot kinematics Robot sensing systems Autism Mobile robots Variable speed drives Control systems

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Modal analysis of a metallic via hole by the WCIP

Modal analysis of a metallic via hole by the WCIP

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SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2015

作者： De F. Serres, Georgina K. Serres, Alexandre J. R. Freire, Raimundo C. S. Baudrand, Henri Post-Graduate Program in Electrical Engineering - COPELE Federal University of Campina Grande UFCG Campina Grande Brazil L.A.P.L.A.C.E-G.R.E ENSEEIHT Toulouse France

ISBN: (纸本)9781467394925

This paper presents a new electromagnetic modeling of a via-hole using a Wave Concept Iterative Procedure. There are specific TM modes associated with the insertion of the via-hole influencing the incident and reflected waves, called the "via's modes". The formulation and results are presented considering the influence of one and two via's mode. The advantage of the model presented is the possibility to simulate planar circuits with a layer and a via-hole considering the effects of the field that propagates around the via. © 2015 IEEE.

关键词： Modal analysis

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Modeling and control of the modular multilevel cascade converter based on chopper-cells for grid-connected photovoltaic systems 7

Modeling and control of the modular multilevel cascade conve...

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7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

作者： Luna, Bruno Emmanuel De O. B. Jacobina, Cursino B. Oliveira, Alexandre C. Da Silva, Italo Roger F. M. P. Post-graduate Program in Electrical Engineering - PPgEE/COPELE Aprígio Veloso 882 Campina Grande-PB58429-900 Brazil Aprígio Veloso 882 Campina Grande-PB58429-900 Brazil

ISBN: (纸本)9781467371506

This paper presents a modular multilevel cascade converter (MMCC) based on chopper-cells for a grid-connected photovoltaic (PV) application suitable to medium and high voltage systems without line-frequency transformers. This converter is characterized by a modular arm structure composed by cascaded chopper-cells with floating dc capacitors, each one connected to a photovoltaic panel. This paper proposes a continuous model and a control method to achieve independent voltage control of all the floating dc capacitors, enabling the tracking of the maximum power point for each photovoltaic panel. The validity of the theory is confirmed by simulation and experiment. © 2015 IEEE.

关键词： Choppers (circuits)

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SIX-PHASE MACHINE DRIVE SYSTEM BASED ON THREE THREE-LEG CONVERTERS

SIX-PHASE MACHINE DRIVE SYSTEM BASED ON THREE THREE-LEG CONV...

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Brazilian Power Electronics Conference

作者： A. C. N. Maia C. B. Jacobina Federal University of Campina Grande (UFCG) Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Electrical Engineering Department (DEE)

ISBN: (纸本)9781479902712

In this paper, a six-phase machine drive system fed by a nine-leg converter is proposed. The drive system is composed of a three three-leg inverters feeding a six-phase induction motor, which is adequate to develop a high power system with voltage rating restrictions. The studied system is compared to the conventional solution and it is demonstrated that the nine-leg converter permits to reduce the harmonic distortion of the machine currents and to decrease the power processed by converter switches. The system model and the PWM strategy are presented. Experimental results demonstrate the feasibility of the proposed system.

关键词： Harmonic Distortion Motor Drive System Ratings of Switches Semiconductor Losses Six-Phase Machine Three-leg Converters

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Four-wire Shunt Compensator Based on H-bridge Y-Connected Converters

Four-wire Shunt Compensator Based on H-bridge Y-Connected Co...

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Annual Conference of the IEEE Industrial Electronics Society

作者： E. L. L. Fabricio C. B. Jacobina V. F. Nobrega Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Electrical Engineering Department (DEE) Federal University of Campina Grande (UFCG)

ISBN: (纸本)9781479940318

This paper investigates a power shunt filter composed by four standard h-bridge converters, acting in four-wire system. Compared with the usual four-wire shunt filters, the proposed converter permits reducing the dc-link voltages, the harmonic distortion or the switching frequency. Suitable control strategies to adjust the filter currents as well as the three dc-link voltages are presented. The PWM strategy is designed to command the converter according to the reference voltage provided by the controllers. Simulation and experimental results are presented.

关键词： Topology Voltage control Capacitors Harmonic distortion Pulse width modulation Shunts (electrical) Inverters

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