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Annual Siberian Russian Workshop on Electron Devices and Materials (EDM)

作者： Vladimir N. Khmelev Sergey S. Khmelev Sergey N. Tsyganok Gennadiy A. Titov Department of Automation and Applied Informatics Budapest University of Technology and Economic Hungary Center of Ultrasonic Technologies Biysk Russia Biysk Technological Institute (branch) Altai State Technical University named after I.I. Polzunov Biysk Russia

The article is devoted to the study of drying process of list material under the action of high-intensity ultrasonic vibrations. The advantages of ultrasonic drying and possibility of its practical realization are described in the article. The ultrasonic drier applied in practice of ultrasonic drying of list materials was proposed and developed.

关键词： Acoustics Materials Vibrations Transducers Pressing Force Ultrasonic imaging

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On-line efficiency estimation for DC/DC converter cluster by dedicated software

On-line efficiency estimation for DC/DC converter cluster by...

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2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012

作者： Bartal, Peter Nagy, Istvan Budapest University of Technology and Economics Department of Automation and Applied Informatics Magyar Tudósok Körútja 2 1117 Budapest Hungary

ISBN: (纸本)9781467314541

The measurement of the efficiency of power electronics converters is a special challenge, because it is difficult to perform it accurately using electrical methods (especially in the high efficiency range or in low power applications). Therefore in many applications, where accuracy is crucial, engineers resort to calorimetric approaches. These in turn are extremely slow and special conditions need to be created to obtain good results. In other applications, where the accuracy is not the primary goal, but rather the fast, on-line, comparative estimation governs the demand for realizing the final aim. As a result, a solution to effectively determine the efficiency of the converters while working, is still sought for. The current paper aims at presenting a possible alternative, calculating the efficiency on-line with satisfactory accuracy at a low cost. © 2012 IEEE.

关键词： DC-DC converters

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Educational aspects of designing robot for Eurobot contest

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IFAC Proceedings Volumes 2012年第11期45卷 342-347页

作者： VARGA Dániel Kristóf CSORBA Dávid SZALÓKI Zoltán BECK Gábor TEVESZ Budapest University of Technology and Economics Department of Automation and Applied Informatics

The Eurobot contest is an international robot building competition. This paper presents an autonomous robot mechanical and electric design built to Eurobot 2011 robotics contest. The robot collects the playing elements, builds towers and avoid collision with the opponent robot. The building process, the control and vision algorithms are also presented. We specify the used absolute (ultrasonic sonar) and relative (odometry) positioning methods, and we describe their advantages and disadvantages. The hardware and software architecture, navigation algorithms are also presented. This paper focuses on the educational aspects of the project. We demonstrate how our team collaborates, and how the tasks were assigned to them in order to comply their thesis.

关键词： Autonomous mobile robots Eurobot Control education Mechanical engineering Positioning systems Obstacle avoidance Robot vision

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Identification Aspects of SDP Based Polynomial Optimization Relaxations *

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IFAC Proceedings Volumes 2012年第16期45卷 1209-1214页

作者： Sándor Kolumbán Istvan Vajk Department of Automation and Applied Informatics Budapest University of Technology and Economics Budapest Hungary

The goal of parametric system identification is to provide estimates for parameters of a certain model structure based on given measurement data. This problem can always be presented as an optimization problem with an appropriate choice of cost and constraint functions. Apart from the simplest cases the resulting optimization problems are nonconvex with multiple local minima. Due to the existence of these, usually there are no guaranties that the model resulting from a given identification method is a global minimizer. This paper applies semidefinite programming (SDP) relaxation techniques to the optimization problem arising in time domain identification. From the solution of the defined sequence of SDPs a sequence of system models can be extracted that converges to the globally optimal system model. We give a short overview of the SDP relaxation technique for polynomial optimization problems (POP), then this technique is applied to the identification problem. The properties of the resulting POP are examined in detail. The solutions of the SDP sequence usually converge to the optimizer only in the limit. Model structures where finite convergence occurs and issues regarding detecting finite convergence are also considered.

关键词： system identification global optimization polynomial optimization semidefinite relaxation sparsity

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The RobonAUT Autonomous Mobile Robot Construction Contest *

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IFAC Proceedings Volumes 2012年第11期45卷 360-365页

作者： Kristóf Csorba Dániel Varga Gábor Tevesz István Vajk Budapest University of Technology and Economics Department of Automation and Applied Informatics Budapest Hungary

This paper presents the RobonAUT contest organized by the budapest university of technology and economics, department of automation and applied informatics. The contest aims to support the education of control theory, embedded system design and several other courses related to building autonomous mobile robots in a fun and instructive teamwork project. Students are required to build autonomous four-wheel robots capable to go along a path indicated by a continuous line on the ground, and to perform several tasks along the way. These tasks involve obstacle avoidance, parking operations, passing slopes, and acceleration segments. 3 students work together in a team during the semester to build their robot, for which they need skills related to control theory, both analog and digital circuit design, and microcontroller programming. The task has a very strong integrating nature by utilizing the material of several courses of electrical engineering. Beside the motivating fact that building an own robot is fun, we believe that students are given the opportunity to apply their knowledge to solve a real-world engineering task. And based on the popularity of the challenge, students seem to realize the need for this practice as well. This paper is aimed to describe the history, rules and experiences of the challenges in 2010 and 2011, together with the plans of the 2012 challenge.

关键词： Autonomous mobile robots Controller vehicles Microcomputer based control PID control Infrared detectors Ultrasonic transducers

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Aspects of formation control for swarm robots

Aspects of formation control for swarm robots

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2012 13th International Carpathian Control Conference, ICCC 2012

作者： Blázovics, László Ilsinszki, Balázs Csorba, Kristóf Forstner, Bertalan Hassan, Charaf Department of Automation and Applied Informatics Budapest University of Technology and Economics Magyar Tudósok körútja 2 QB-207 1117 Budapest Hungary

Despite the increasing capabilities and effectiveness of highly autonomous robots, there are still situations where one entity is not sufficient. Escorting and tracking are typical situations, where more robots can be... 详细信息

ISBN: (纸本)9781457718687

关键词： Robots

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Cache performance and efficiency factors of parallel data structures

Cache performance and efficiency factors of parallel data st...

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2012 10th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2012

作者： Dudás, Ákos Sándor, Juhász Department of Automation and Applied Informatics Budapest University of Technology and Economics Magyar Tudósok krt. 2 QB207 1117 Budapest Hungary

ISBN: (纸本)9780769547015

Multi-core CPUs are very efficient at executing multiple threads at the same time without significant performance penalty;this capability, however, results in increasing demand for the memory and the caches, which not only have to serve multiple parallel requests but also have to endure the consequences of parallel programming. The performance of parallel applications is not only limited by the CPU and the internal level of parallelism that the algorithms and data structures allow, but is also restricted by their memory characteristics. Altering the data structure for example to work with machine word-sized pointers required by atomic operations incurs additional cache misses, while a lock protecting a critical section not only consumes memory, but could also be responsible for increased memory traffic for cache-line invalidations when acquired or released. We investigate these effects and analyze the behavior of different parallelization mechanisms, both blocking and lock-free solutions, through the example of a basic data structure: a hash table. © 2012 IEEE.

关键词： Parallel programming

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Erratum to: Making sense of big data in health research: towards an EU action plan

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Genome medicine 2016年第1期8卷 118页

作者： Charles Auffray Rudi Balling Inês Barroso László Bencze Mikael Benson Jay Bergeron Enrique Bernal-Delgado Niklas Blomberg Christoph Bock Ana Conesa Susanna Del Signore Christophe Delogne Peter Devilee Alberto Di Meglio Marinus Eijkemans Paul Flicek Norbert Graf Vera Grimm Henk-Jan Guchelaar Yi-Ke Guo Ivo Glynne Gut Allan Hanbury Shahid Hanif Ralf-Dieter Hilgers Ángel Honrado D Rod Hose Jeanine Houwing-Duistermaat Tim Hubbard Sophie Helen Janacek Haralampos Karanikas Tim Kievits Manfred Kohler Andreas Kremer Jerry Lanfear Thomas Lengauer Edith Maes Theo Meert Werner Müller Dörthe Nickel Peter Oledzki Bertrand Pedersen Milan Petkovic Konstantinos Pliakos Magnus Rattray Josep Redón I Màs Reinhard Schneider Thierry Sengstag Xavier Serra-Picamal Wouter Spek Lea A I Vaas Okker van Batenburg Marc Vandelaer Peter Varnai Pablo Villoslada Juan Antonio Vizcaíno John Peter Mary Wubbe Gianluigi Zanetti European Institute for Systems Biology and Medicine 1 avenue Claude Vellefaux 75010 Paris France. cauffray@***. CIRI-UMR5308 CNRS-ENS-INSERM-UCBL Université de Lyon 50 avenue Tony Garnier 69007 Lyon France. cauffray@***. Luxembourg Centre for Systems Biomedicine University of Luxembourg 7 Avenue des Hauts Fourneaux 4362 Esch-sur-Alzette Luxembourg. rudi.balling@uni.lu. Wellcome Trust Sanger Institute Wellcome Genome Campus Hinxton Cambridge CB10 1SA UK. Health Services Management Training Centre Faculty of Health and Public Services Semmelweis University Kútvölgyi út 2 1125 Budapest Hungary. Centre for Personalised Medicine Linköping University 581 85 Linköping Sweden. Translational & Bioinformatics Pfizer Inc. 300 Technology Square Cambridge MA 02139 USA. Institute for Health Sciences IACS - IIS Aragon San Juan Bosco 13 50009 Zaragoza Spain. ELIXIR Wellcome Genome Campus Hinxton Cambridge CB10 1SD UK. CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences Lazarettgasse 14 AKH BT25.2 1090 Vienna Austria. Department of Laboratory Medicine Medical University of Vienna Lazarettgasse 14 AKH BT25.2 1090 Vienna Austria. Max Planck Institute for Informatics Campus E1 4 66123 Saarbrücken Germany. Príncipe Felipe Research Center C/Eduardo Primo Yúfera 3 46012 Valencia Spain. University of Florida Institute of Food and Agricultural Sciences (IFAS) 2033 Mowry Road Gainesville FL 32610 USA. Bluecompanion Ltd 6 London Street (second floor) London W2 1HR UK. Technology Data & Analytics KPMG Luxembourg Société Coopérative 39 Avenue John F. Kennedy 1855 Luxembourg Luxembourg. Department of Human Genetics Department of Pathology Leiden University Medical Centre Einthovenweg 20 2333 ZC Leiden The Netherlands. Information Technology Department European Organization for Nuclear Research (CERN) 385 Route de Meyrin 1211 Geneva 23 Switzerland. Julius Center for Health Sciences and Primary Care University Medical Center

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Efficiency improvement in modular DC/DC converters using unequal current sharing

Efficiency improvement in modular DC/DC converters using une...

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21st International Symposium on Power Electronics, Electrical Drives, automation and Motion, SPEEDAM 2012

作者： Bartal, Peter Hamar, János Nagy, István Budapest University of Technology and Economics Department of Automation and Applied Informatics Magyar Tudósok Körútja 2 Q épület 1117 Hungary

ISBN: (纸本)9781467312998

The paper presents a novel approach to efficiency optimization applied to modular DC/DC converters. It consists of using several identical converters in parallel, turning on just as many of them as needed and operating them with maximum efficiency, while leaving only one of them working in a suboptimal operating point. The conditions for switching on or off a converter are also investigated to obtain maximum overall efficiency. Notable improvement can be obtained in the entire load region, especially at light load. © 2012 IEEE.

关键词： DC-DC converters

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Convex hull manipulation based control performance optimization: Case study of impedance model with feedback delay

Convex hull manipulation based control performance optimizat...

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10th IEEE Jubilee International Symposium on applied Machine Intelligence and informatics, SAMI 2012

作者： Grof, Patricia Galambos, Péter Baranyi, Petéer Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary Department of Mechatronics Optics and Information Engineering Budapest University of Technology and Economics Hungary Department of Telecommunications and Media Informatics Budapest University of Technology and Economics Hungary

ISBN: (纸本)9781457701979

Varying delay is still a challenge to handle in the comtrol of systems with feedback delay. This paper attempt to handle varying delay by a novel approach. The control structure has been already proposed, where the system with feedback delay is approximated by a non-delayed model with modified time constants. The controller is designed according to this non-delayed substitute system and the control signal is computed using its observed state vector. Tensor Product (TP) Model Transformation is utilized to make a compact polytopic representation of the observer and controller for various time delays. In this method the actual value of the feedback delay is considered as an input parameter of the TP type controller and observer. In this paper we show that the convex hull of Convex type TP model applied for LMI based controller design has effect on control performance. We introduce a concept how to improve the control performance of the system with feedback delay via convex hull manipulation. © 2012 IEEE.

关键词： Time delay

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