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IEEE Signal Processing Algorithms, Architectures, Arrangements, and Applications Conference

作者： Pawel M. Stasik Poznan University of Technology Faculty of Computing Science Chair of Control and Systems Engineering

ISBN: (纸本)9781509026616

In image processing measuring and valuing a distance between two points is important. The obtained values can be used for determining whether two points are close to each other or to define weights for a filter concentrated around a central element. While there are measures of proximity, neither of them was defined with a such use in mind, mostly concentrating on problem of an optimization. The idea is to turn the Euclidean distance between two points into a measure of how close (or far) two points are from each other, basing on two given ranges. The function was mostly obtained by a theoretical analysis supported with a mathematical calculation and examples of use. As it was proven in the work, the obtained function can be implemented not only to measure proximity, but also as a flexible kernel for image filters, allowing for blurring or edge-detection.

关键词： Image edge detection Euclidean distance Fuzzy logic Limiting Hypercubes Optimization Edge detection Euclidean distance Hypercube Limiting Fuzzy logic Image processing image filtering Proximity central element Function BLURRING

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FEM model validation for modular axial flux switched reluctance machine design switched reluctance machine design 11

FEM model validation for modular axial flux switched relucta...

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11th International Conference on Ecological Vehicles and Renewable Energies, EVER 2016

作者： Egea, A. Ugalde, G. Poza, J. Egana, I. De Argadona, I. Ruiz Madariaga, J. De Gorostiza, E. Fernandez Faculty of Engineering University of Mondragon Mondragon Spain Department of Automation and Control IK4-Tekniker Eibar Spain Department of Electronics and Comunications IK4-Tekniker Eibar Spain

ISBN: (纸本)9781509024643

This paper is devoted to the outlines of a research project under a European Union Seventh Framework Programme grant. The Venus European project is working on developing an axial flux electrical machine for an electrical vehicle. Between different possible topologies a switched reluctance topology has been chosen. In order to validate the design tools for this uncommon topology a comparison between 2D and 3D finite element analyse together with a experimental validation has been performed. The results of this comparison is summarized in this paper. © 2016 IEEE.

关键词： Machine design

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Advanced hardware control for seven DOFs robotic arm-neuro arm

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IOP Conference Series: Materials Science and engineering 2018年第1期393卷

作者： B Cvetković V Nešić M Lazarević P Mandić P Marić M Dragović University of Belgrade Faculty of Mechanical Engineering Kraljice Marije 16 11000 Belgrade Serbia IMP-Automation and control Institute of Mihajlo Pupin Volgina 15 Belgrade Serbia Uno-lux processing Poručnika Spasića i Mašere 14 11147 Belgrade Serbia

In this paper we will implement new hardware control for 7 DOFs (Degrees of freedom) advanced robotic arm research platform (NeuroArm) equipped with various sensors. New hardware platform consists of Nano Pi platform which is used as a PC platform for standard PLC (programmable logic controller's) unit and will replace old system that consists of 7 16-bit ATmega processors. The goal of new PLC which is based on Linux operating system (Debian distribution) that is patched by Xenomai real time system for reducing control response time and better entire system control. Robotic arm is powered by 7 DC motors which are controlled by two PWM4 (Pulse Width Modulation) modules. Position data is acquired from 1kΩ resistive sensors using RI8 (Resistive module) module and from optical quadrature encoders using one DI16 (Digital Input) module. Also other modules PWM4, RI8 and DI16 communicate with PikoAtlas CPU module by I2C bus.

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On Robust Stability of Switched Systems in the Context of Filippov Solutions

arXiv

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arXiv 2017年

作者： Ahmadi, Mohamadreza Mojallali, Hamed Wisniewski, Rafael University of Texas at Austin Peter O’Donnell Jr. Building 201 E 24th St AustinTX78712 United States Department of Electrical Engineering Faculty of Engineering University of Guilan Rasht41996-13769 Iran Department of Electronic Systems Automation and Control Aalborg University Fredrik Bajers Vej 7 C Aalborg East9220 Denmark

The stability problem of a class of nonlinear switched systems defined on compact sets with state-dependent switching is considered. Instead of the Carathéodory solutions, the general Filippov solutions are studied. This encapsulates solutions with infinite switching in finite time and sliding modes in the neighborhood of the switching surfaces. In this regard, a Lyapunov-like stability theorem, based on the theory of differential inclusions, is formulated. Additionally, the results are extended to switched systems with simplical uncertainty. It is also demonstrated that, for the special case of polynomial switched systems defined on semi-algebraic sets, stability analysis can be checked based on sum of squares programming techniques. Copyright © 2017, The Authors. All rights reserved.

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Stability analysis of simple anti-windup compensation in approximate pole-placement control of a second order oscillatory system with time delay

Stability analysis of simple anti-windup compensation in app...

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International Conference on Methods and Models in automation and Robotics (MMAR)

作者： Talar Sadalla Dariusz Horla Piotr Kozierski Adam Owczarkowski Faculty of Electrical Engineering Poznan University of Technology Poznan Faculty of Computing Chair of Control and Systems Engineering Poznan University of Technology Poznan

The main purpose of this paper, is to analyze the stability of anti-windup compensation impact on tracking performance for a second order plant with time delay and continuous-time PID controller tuned by pole-placement. The paper present results of the research that extends the output from the previous MMAR paper, and is mainly focused on analyzing the stability interplay with open-loop parameters, to show the application limits of the already proposed control law. In the paper, the non-Pade approximation of time delay is used in order to obtain a solution of Diophantine equation. The performance evaluation of the system is based on comparison between integral of absolute and squared tracking errors for system with and without compensation. On the other hand the BIBO stability test of the system is based on computation of the differences between consecutive peaks of possibly diverging output signal. The control system quality is described on the basis of two quality indices in case of stable oscillatory second-order plant with step function reference signal. The main contribution of the paper, is a given rule of thumb that defines the limits of requirements imposed on the dynamics of the closed-loop system with respect to anti-windup compensation scheme applied and modes of the plant and is a natural extension to the results presented before, where the control law has been derived with comments about its performance.

关键词： Stability criteria Delay effects Mathematical model Transfer functions Closed loop systems

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LQ control of Lotka-Volterra Systems Based on their Locally Linearized Dynamics

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IFAC-PapersOnLine 2016年第10期49卷 241-245页

作者： Lipták, Görgy Magyar, Attila Hangos, Katalin M. University of Pannonia Faculty of Information Technology Department of Electrical Engineering and Information Systems H-8200 Egyetem street 10 Veszprém Hungary HAS Computers and Automation Research Institute Process Control Research Group H-1111 Kende street 13-17 Budapest Hungary

This work applies the LQ control framework to the class of quasi-polynomial and Lotka-Volterra systems through the linearized version of their nonlinear system model. The primary aim is to globally stabilize the original system with a suboptimal LQ state feedback by means of a well-known entropy-like Lyapunov function that is related to the diagonal stability of linear systems. This aim can only be reached in the case when the quasi-monomial composition matrix is invertible. In the rank-deficient case only the local stabilization of the system is possible with an LQ controller that is designed using the locally linearized model of the closed-loop system model. © 2016

关键词： System stability Biological systems Closed loop systems Linear matrix inequalities Linear systems Linearization Lyapunov functions Nonlinear systems State feedback Closed loop system modeling Composition matrixes Linearized dynamics Local stabilizations Lotka Volterra systems LQ control Lyapunov stability Nonlinear system modeling

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Technology and methods for formation of the complex magnetotherapy impact by the inductor array

Technology and methods for formation of the complex magnetot...

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Mediterranean Conference on Embedded Computing (MECO)

作者： E.M. Grigoryev S.G. Gurzhin V.I. Zhulev M.B. Kaplan V.G. Kryakov E.M. Proshin Faculty of Automation and Information Technologies in control Ryazan state radio engineering university Ryazan Russia

The present paper considers a technology and methods of the complex magnetotherapy impact formation in coordinates intensity-time-space-frequency with rich features of setting and adjustment of a great number of biotropic parameters that allow increasing an efficiency of the treatment due to an ability to adapt impact to individual parameters of the patient and take a disease specific character into consideration. Methods of the matrix organization of the magnetoradiating system, its management and control of separate real parameters of the field are suggested.

关键词： Magnetic separation Electromagnetics Inductors Embedded computing Bars Organisms

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Principles for design of the electromagnetic chronotherapy system by impacts on biologically active points

Principles for design of the electromagnetic chronotherapy s...

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Mediterranean Conference on Embedded Computing (MECO)

作者： S.G. Gurzhin V.I. Zhulev V.G. Kryakov M.G. Kuznetsov E.P. Matyukhin E.M. Proshin Faculty of Automation and Information Technologies in control Ryazan state radio engineering university Ryazan Russia

ISBN: (纸本)9781509022236

The present paper considers principles for design of the electromagnetic chronotherapy system, peculiarities of formation and synthesis of biotropic parameters of electric and magnetic components of impacts on biologically active points. Suggested methods of remote and noise-immune recording of patient's cardiac and respiratory activities during the treatment session for on-line and course diagnostics of the functional state, separation of biorhythms and formation of clock signals to synchronize impacts.

关键词： Electromagnetics Synchronization Medical treatment Magnetic recording Organisms Diseases

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Thermal design of a magnet-free axial-flux switch reluctance motor for automotive applications 11

Thermal design of a magnet-free axial-flux switch reluctance...

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11th International Conference on Ecological Vehicles and Renewable Energies, EVER 2016

作者： Chong, Yew Chuan Staton, Dave Egana, Imanol De Argandona, Ismael Ruiz Egea, Aritz Motor Design Ltd. EllesmereSY12 0EG United Kingdom IK4-Tekniker Department of Automation and Control Eibar Spain Faculty of Engineering University of Mondragon Mondragon Spain

ISBN: (纸本)9781509024643

With the requirement to develop magnet-free motors for automotive application, more design effort is needed for thermal design as the machine temperature limits the motor performance. Thermal design procedure of automotive motor has to fully exploit the modern approaches in electrical machine thermal analysis in terms of accuracy and solving time. This paper proposes a computational-cost-effective way to obtain the optimum thermal design of an axial-flux switched reluctance motor by means of lumped circuit methods with some inputs from Computational Fluid Dynamic simulations. © 2016 IEEE.

关键词： Thermoanalysis

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Corrigendum: Dielectric cross-shaped-resonator-based metasurface for vortex beam generation at mid-IR and THz wavelengths (Nanophotonics (2019) 8:7 (1263–1270) DOI: 10.1515/nanoph-2019-0112)

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Nanophotonics 2019年

作者： Dharmavarapu, Raghu Izumi, Ken-ichi Katayama, Ikufumi Ng, Soon Hock Vongsvivut, Jitraporn Tobin, Mark J. Kuchmizhak, Aleksandr Nishijima, Yoshiaki Bhattacharya, Shanti Juodkazis, Saulius Centre for NEMS and Nanophotonics (CNNP) Department of Electrical Engineering Indian Institute of Technology Madras Chennai 600036 India Centre for Micro-Photonics Faculty of Science Engineering and Technology Swinburne University of Technology Hawthorn VIC 3122 Australia Melbourne Centre for Nanofabrication ANFF 151 Wellington Road Clayton VIC 3168 Australia Physics Department Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Infrared Microspectroscopy Beamline Australian Synchrotron Clayton VIC 3168 Australia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok 690041 Russia Far Eastern Federal University Vladivostok 690090 Russia Department of Electrical and Computer Engineering Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Institute of Advanced Sciences Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Tokyo Tech World Research Hub Initiative (WRHI) School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan

There was a mistake in the grant number used in the recently published paper (DOI: https://***/10.1515/ nanoph-2019-0112. Published Online: 2019-07-09). The text should read: A.K. is grateful for support via the Russian Science Foundation (grant no. 17-19-01325), and R.D. thanks the IIT Madras-Swinburne joint PhD program. © 2019 De Gruyter. All rights reserved.

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