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Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Mateus Terribele Leme Guilherme Paim Leandro M. G Rocha Patricia Ücker Vitor G. Lima Rafael Soares Eduardo A. C. da Costa Sergio Bampi Graduate Program in Microelectronics (PGMICRO) Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Graduate Program on Electronic Engineering and Computing Catholic University of Pelotas (UCPel) Pelotas Graduate Program on Computer Science (PPGC) Federal University of Pelotas (UFPel)

ISBN: (数字)9781728180588

ISBN: (纸本)9781728180595

Cryptography hardware design is a key challenge towards the confidentiality advance in the prominent field of the internet of things (IoT). The rise of IoT embedded devices boosts the demand for power- and area- efficient solutions for cryptography hardware. The higher the robustness of the cryptography algorithm is, the higher are the hardware complexity, the circuit area, and energy consumption. Asymmetric algorithms are a particular class widely employed in ultra-secure cryptosystems. The high time-hardness to break the private-key in asymmetric algorithms is a result of its high mathematical complexity. RSA is an asymmetric algorithm that performs successive modular multiplications to encrypt and de-encrypt the information. Therefore, arithmetic operators are the most significant part regarding circuit area and power dissipation. This work evaluates a design space exploration for power- and area-efficient hardware VLSI design in the modular Montgomery multiplier employed in the RSA algorithm.

关键词： Hardware computer architecture Adders Power dissipation Public key Very large scale integration

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Power quality control of wind-diesel hybrid power systems using fuzzy PI controller

Power quality control of wind-diesel hybrid power systems us...

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2012 3rd International Conference on Manufacturing Science and Technology, ICMST 2012

作者： Yang, Su-Hyung Kim, Ho-Chan Boo, Chang-Jin Kang, Min-Jae Kim, Eel-Hwan Ko, Hee-Sang Lee, Kwang Y. Multidisciplinary Graduate School Program for Wind Energy Jeju National University Korea Republic of Department of Electrical Engineering Jeju National University Korea Republic of Department of Electronic Engineering Jeju National University Korea Republic of Product Development Team/Wind Turbine Division Samsung Heavy Industries Co Korea Republic of Department of Electrical and Computer Engineering Baylor University United States

ISBN: (纸本)9783037855638

This paper proposes a modeling and controller design approach for a wind-diesel hybrid system including dump load. The proposed control scheme for power quality is fuzzy PI controller which has advantages of PI and fuzzy controller. Simulation results show that the proposed controller is more effective against disturbances caused by wind speed and load variation than the PI controller, and thus it contributes to a better quality wind-diesel hybrid power system. © (2013) Trans Tech Publications, Switzerland.

关键词： Controllers

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Two-dimensional location and direction estimating method

Two-dimensional location and direction estimating method

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Teruhiro Haga Sosuke Tsukamoto Hiroshi Hoshino Masters Program in Electronic and Computer Engineering Graduate School of Science and Engineering Tokyo Denki University Hiki Saitama Japan School of Science and Engineering Tokyo Denki University Hiki Saitama Japan

In this paper, a method of estimating both the position and the rotation angle of an object on a measurement stage was proposed. The system utilizes the radio communication technology and the directivity of an antenna. As a prototype system, a measurement stage (a circle 240mm in diameter) with 36 antennas that placed in each 10 degrees was developed. Two transmitter antennas are settled in a right angle on the stage as the target object, and the position and the rotation angle is estimated by measuring efficiency of the radio communication of each 36 antennas. The experimental result revealed that even when the estimated location is not so accurate (about a 30 mm error), the rotation angle is accurately estimated (about 2.33 degree error on average). The result suggests that the proposed method will be useful for estimating the location and the direction of an object.

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Capturing cellular communication with guided electrode network on a silicon integrated circuit chip

Capturing cellular communication with guided electrode netwo...

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ICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology

作者： Chan, Mansun Yeung, Chi-Kong Wang, Yijin He, Jin Ingebrandt, Sven Offenhaeusser, Andreas Dept. of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong Hong Kong Bioengineering Graduate Program Hong Kong University of Science and Technology Hong Kong Hong Kong Institute of Microelectronic Peking University Beijing China Leo-Brandt Str. 52425 Juelich Germany

ISBN: (纸本)1424401615

This paper describes the development of a Multi-Electrode Array (MEA) with Guided Network for Cell-to-Cell Communication Transduction using a standard integrated circuit (IC) fabrication process. Unlike conventional electronic system, bio-system requires a special handling environment that is uncommon in conventional IC technology. The work presented here demonstrated the interaction between electrically active cells such as neuron and cardiac cells and an IC based system. Through a carefully designed array, and ionic action of a cell, extracellular signals can be captured and imaged. © 2006 IEEE.

关键词： Cellular radio systems

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A handle electrode system for measuring heart rate while riding a bicycle

A handle electrode system for measuring heart rate while rid...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Masutaka Watanabe Sosuke Tsukamoto Hiroshi Hoshino Masters Program in Electronic and Computer Engineering Graduate School of Science and Engineering Tokyo Denki University Hiki Saitama Japan School of Science and Engineering Tokyo Denki University Hiki Saitama Japan

In this paper, a handle-electrode system is proposed for obtaining the heart rate of a user while riding a bicycle. The system was designed to measure the user's heart rate by only gripping the handle of a bicycle. Three electrodes made from conductive cloth were adhered to the handle. A method detecting heart-rate from the obtained electrocardiogram was also proposed. To assess the applicability of the proposed system, a simple experiment was performed. The experiment was performed in four conditions of road surfaces; lawn, asphalt, a tiled, and an uneven road. Experimental result suggests that the proposed system can be useful for obtaining R waves while riding a bicycle.

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An Empirical Generation Technique on Background Music Using Gated Recurrent Neural Networks

An Empirical Generation Technique on Background Music Using ...

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IEEE International Conference on Consumer electronics-Taiwan (ICCE-TW)

作者： Varinya Phanichraksaphong Wei-Ho Tsai International Graduate Program of Electrical Engineering and Computer Science (IEECS) National Taipei University of Technology Taipei Taiwan Department of Electronic Engineering National Taipei University of Technology Taipei Taiwan

The implementation of Gated Recurrent Neural Networks (GRU) to generate background music (BGM) combines deep learning technology with music that is used for the visual content of a commercial or educational. Indeed, this BGM is necessary to enhance the intended message expressed to the other audience. This work aimed to provide the model network of GRU which is based on RNN to generate multi-label genres of music by using the open source of GTZAN to evaluate the new BGM. Our GRU networks can solve the vanishing gradient problem by utilizing both the reset gate and the update gate on the network. In the results, we achieved a new BGM that synchronized with the human mood which made more variety of sounds.

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An approach for robust SISO adaptive control

Mediterranean Journal of Measurement and Control

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Mediterranean Journal of Measurement and Control 2006年第4期2卷 186-193页

作者： Tahoun, Ali Husin Abouelsoud, Ahmed Ali Mahmoud, Magdi Sadek Hassan, Mohamed F. Fahmy, M.M. Computer and Control Department Faculty of Engineering Tanta University Tanta Egypt Electronic and Communication Department Faculty of Engineering Cairo University Giza Egypt Graduate Studies Program Cairo University Giza Egypt Hust University China

In this paper, we develop an approach for robust model reference adaptive control of continuous-time SISO linear dynamical systems in the presence of output disturbance. In comparison with earlier approaches in the literature, the proposed approach is advantageous in that the two assumptions of knowing an upper bound of the disturbance and knowing the high frequency gain of the system are omitted altogether. The development of the approach relies heavily on Lyapunov's stability criterion and the dead-zone technique. The applicability of the approach is demonstrated in a practical numerical example of a ship steering adaptive system subject to wave disturbance. Copyright © 2006 SoftMotor Ltd.

关键词： Adaptive control systems

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Set-based state estimation of a Li-ion cell using DC programming and constrained zonotopes

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IFAC-PapersOnLine 2023年第2期56卷 7147-7153页

作者： Angelo Tottoli Alesi A. de Paula Guilherme V. Raffo Bruno O.S. Teixeira Davide M. Raimondo Department of Electrical Computer and Biomedical Engineering University of Pavia Italy Graduate Program in Electrical Engineering Universidade Federal de Minas Gerais Belo Horizonte MG Brazil Department of Electronic Engineering Universidade Federal de Minas Gerais Belo Horizonte MG Brazil

Advanced battery management systems (ABMSs) rely on mathematical models to ensure high battery safety and performance. One of the key tasks of a BMS is state estimation. In the following, we consider a single lithium-ion cell described with a dual polarization equivalent circuit model. To consider a realistic scenario, where the parameters have been identified from experimentally collected data, both parametric and measurement uncertainties are taken into account in the model. In particular, unknown but bounded uncertainties are assumed. In this setup, we address state estimation through a set-based approach using Constrained Zonotopes (CZ). Due to the model nonlinearities, a method able to propagate CZ through nonlinear mappings is demanded. Within this context, mean value and first-order Taylor CZ-based extensions were proposed which, however, might lead to conservative overestimation due to the sensitivity to the wrapping and dependency effects inherited from interval arithmetic. In the following, we suggest the use of DC programming as an alternative. The effectiveness of the proposed scheme is demonstrated in simulation for the considered Li-ion model.

关键词： Lithium-ion cells Nonlinear state estimation Uncertainty Set-based approach

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NMPC Strategy for Safe Robot Navigation in Unknown Environments Using Polynomial Zonotopes

NMPC Strategy for Safe Robot Navigation in Unknown Environme...

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IEEE Conference on Decision and Control

作者： Iuro B. P. Nascimento Brenner S. Rego Luciano C. A. Pimenta Guilherme V. Raffo Graduate Program in Electrical engineering Federal University of Minas Gerais Brazil Department of Electrical and Computer Engineering University of São Paulo Brazil Department of Electronic Engineering Federal University of Minas Gerais Brazil

This work proposes a nonlinear model predictive control (NMPC) strategy for robot navigation in cluttered unknown environments using polynomial zonotopes. The information provided by a laser sensor is used in the computation of the collision-free area. The procedure splits the area into convex subregions which are converted into polynomial zonotopes (PZs) to generate constraints for the NMPC optimal control problem. The PZ is a set representation that can describe polytopes using fewer constraints than conventional half-space representations, thus being more efficient while maintaining the accuracy equivalent to the polytopic case. Numerical experiments demonstrate the advantages of the proposed strategy.

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Robust adaptive control of linear multivariable systems

Mediterranean Journal of Measurement and Control

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Mediterranean Journal of Measurement and Control 2007年第2期3卷 59-67页

In this paper, we develop an approach for robust model reference adaptive control of continuous-time MIMO linear dynamical systems in the presence of output disturbance. In comparison with earlier approaches in the literature, the proposed approach has the advantage that the assumption of knowing an upper bound of the disturbance is removed. The development of the approach relies heavily on Lyapunov's stability criterion and the dead-zone technique. The approach is applied to a numerical example of an articulated suspension system subject to output disturbance. Copyright © 2007 SoftMotor Ltd.

关键词： Multivariable systems

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