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2018 International Symposium on Electrical Machines, SME 2018

作者： Beniak, Ryszard Rogowski, Krzysztof Automatic Control and Informatics Opole University of Technology Faculty of Electrical Engineering Proszkowska 76 Street Opole45-758 Poland

ISBN: (纸本)9781538652107

This paper presents modifications to the space vector modulation for 3L-NPC inverter which are oriented towards symmetric load of the supply voltage dividing capacitors. Modification are made upon the space vector modulation, that uses prediction algorithm and additional transistors' states corresponding to output voltages, to reduce the number of individual state changes in power transistors (switch count). Reduction of switch count can be used to lessen the commutation losses. Two modification of previous method of modulation, that equalize the load of supply capacitors, are shown. Both methods were implemented, measured and compared with previous method, which was fully oriented towards switch count reduction. Presented modifications do not weaken switch count reduction ratio. © 2018 IEEE.

关键词： Insulated gate bipolar transistors (IGBT)

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An application of the induced matrix norm in the minimum-energy design of perfect control algorithm

An application of the induced matrix norm in the minimum-ene...

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

作者： Dariusz Pączko Wojciech Hunek Institute of Mathematics and Applied Informatics Opole University of Technology Opole Poland Institute of Control Engineering Opole University of Technology Opole Poland

In the previous research study it has been pointed out that employing the approximation of the induced matrix norm can be useful during design of minimum-energy perfect control law for LTI MIMO discrete-time state-space plants. It has also been shown that this scenario was related to the case involving the closed-loop control matrix norm being less than unity, which was preserved by proper selection of applied nonunique inverses. This paper focuses on the systems which have been excluded from our past considerations. The methodology of minimum-energy approach for plants with norm greater than one is postulated here and some peculiarities in this matter additionally are given. This innovative method allows to predefine in a simple way a minimum-energy behavior of this intriguing control procedure.

关键词： Linear matrix inequalities Linear systems MIMO communication Mathematical model Estimation control design Eigenvalues and eigenfunctions

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Metamodels in estimation of converter drive parameters

Metamodels in estimation of converter drive parameters

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2018 International Symposium on Electrical Machines, SME 2018

作者： Beniak, Ryszard Automatic Control and Informatics Opole University of Technology Faculty of Electrical Engineering Proszkowska 76 Street Opole45-758 Poland

ISBN: (纸本)9781538652107

The article describes the possibilities of using metamodels to estimate parameters of converter drives. It describes in brief the methods of creating initial parameter sets for meta-models, as well as the applied method for setting up and advancing the surrogate models. It also reports on the examination of this method's properties in identifying parameter values for two converter drives. Comparing the efficiency of the standard estimation methods with methods based on metamodels, one can conclude that the latter methods are highly efficient also when applied in converter drive estimation. © 2018 IEEE.

关键词： Linear programming Estimation Induction motors Computational modeling Optimization Frequency conversion Differential equations"

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Innovative Internet of Things-reinforced Human Recognition for Human-Machine Interaction Purposes

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IFAC-PapersOnLine 2018年第6期51卷 138-143页

作者： Gardecki, Arkadiusz Podpora, Michal Kawala-Janik, Aleksandra Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Poland Weegree Sp. z o.o. S.K. Poland

Accurate and reliable human recognition and parametrisation have always been an important challenge in efficient Man-Machine Interaction. A humanoid robot is able to offer a much richer and more natural behaviour and human-like communication, but only if the robot possesses sufficient knowledge about the interlocutor, such as inter alia: gender, age, mood, behaviour data, interaction history. In this paper authors introduced an innovative conception in Human-Machine Interaction, where instead of thinking about an interaction as an event (which uses and produces information) an innovative point of view was proposed, where the interaction is just an event in a continuous flow of information. The difference, once perceived, results in an astounding change of conception, as well as a whole new set of ideas. The human detection, information acquisition, human recognition – can be performed earlier, before a human reaches the humanoid robot, also the history of interactions and possible interests of the interlocutor can be predicted before they would even start the conversation. This paper contains a detailed analysis of the proposed environment-based approach to interaction, as well as the Internet of Things-reinforced information acquisition. © 2018

关键词： Human robot interaction Anthropomorphic robots Behavioral research Human computer interaction Internet of things Man machine systems Reinforcement Continuous flows Human identification Human machine interaction Human recognition Humanoid robot Information acquisitions Interaction history Parametrisation

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Impact of winding parameters of a switched reluctance generator on energy efficiency of a wind turbine

Impact of winding parameters of a switched reluctance genera...

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2018 International Symposium on Electrical Machines, SME 2018

作者： Sliwinski, Artur Wrobel, Krzysztof Tomczcwski, Krzysztof Tomczewski, Andrzej Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Opole Poland Faculty of Electrical Engineering Poznan University of Technology Poznan Poland

ISBN: (纸本)9781538652107

The paper contains an analysis of the impact of the characteristics of a switched reluctance generator (SRG) installed in a low-power wind turbine on its annual energy production. The study was conducted on the basis of the characteristics of previously designed switched reluctance generators which differ only in terms of winding parameters. As a consequence of the design, the maximum power output can be generated at various wind speeds. By accounting for these differences, it was possible to calculate the annual energy production of various turbine types. The assessment of the efficiency of the investigated wind turbines incorporates the results of actual annual measurements of wind speeds. Consequently, it was possible to identify the generator design providing the greatest output of electricity. The research was conducted via the application of simulation methods. © 2018 IEEE.

关键词： Wind turbines

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Humanoid Receptionist Connected to IoT Subsystems and Smart Infrastructure is Smarter than Expected

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IFAC-PapersOnLine 2019年第27期52卷 347-352页

作者： Michal Podpora Arkadiusz Gardecki Aleksandra Kawala-Sterniuk Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Poland Weegree Sp. z o.o. S.K. Poland

The authors of this paper have the unique opportunity to design the AI engine of a humanoid front desk office (receptionist) employee. The designed AI engine conception is strongly influenced by the Smart Infrastructure approach, making the robot be just an interface to a complex system cooperating with various databases, subsystems and IoT modules and sensors. The WeegreOne robot has been given the access to a wide variety of preferred conversation topics, additional facts, databases and sensors, making it become a valuable interlocutor. The prototype has been installed, and the AI engine have adapted to most of the real-case uses. Surprisingly, human interlocutors neither do not use nor discover the full functionality and versatility of the robot. The research team extended the usability and connectivity of the robot while analyzing the interactions with the employees and visitors of the company. The article presents the concept, design and final thoughts on the results of the experiment - that people seem not to need robotic employees to be really smart or versatile -or - people seem to underestimate the versatility of robotic employees.

关键词： Human-Machine Interaction Internet of Things Human Recognition Humanoid Robots Smart Infrastructure Human Identification

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Analysis of factors affecting the precision of gene expression measurement methods

Analysis of factors affecting the precision of gene expressi...

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International Conference on Signal Processing and Communication Systems, ICSPCS

作者： Anna Lalik Krzysztof Puszyński Roman Jaksik Systems Engineering Group Faculty of Automatic Control Electronics and Automatic Control Electronics and Automatic Control Electronics and Informatics Informatics Informatics Silesian University of Technology Gliwice Poland

ISBN: (数字)9781728121949

ISBN: (纸本)9781728121956

Biological experiments which aim to study changes in the gene expression profile currently allow to detect only significant variations in RNA levels due to high variance of the signal in both biological and technical replicates. The variance of the signal has its source in the experimental procedure and in the laboratory in which the measurement was performed. Understanding factors that influence measured levels of gene expression, using individual platforms, will allow the development of bioinformatics tools correcting the impact of experimental methodology. In this study, we analyze the influence of selected factors (poly(A) and spacer-T motifs; GC content, transcript length) on the precision of gene expression measurements by RT-qPCR, oligonucleotide microarrays and RNA sequencing.

关键词： RNA Gene expression Probes Sequential analysis Real-time systems informatics

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Analytical model of a nonlinear vibration energy harvester

Analytical model of a nonlinear vibration energy harvester

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2018 International Symposium on Electrical Machines, SME 2018

作者： Jagiela, Mariusz Kulik, Marcin Automatic Control and Informatics Opole University of Technology Faculty of Electrical Engineering ul. Prószkowska 76 Opole45-758 Poland

ISBN: (纸本)9781538652107

The analytical solution for most useful electromagnetic quantities for a coreless linear-motion nonlinear electromechanical microgenerator, suitable for wideband energy harvesting systems, is presented. The implicit and closed-form formulas for magnetic flux, magnetic stiffness and coil inductance and magnetic stiffness are provided. The results of analytical calculations show remarkable accuracy in comparison with the finite element predictions especially when derivatives of the magnetic quantities are considered. © 2018 IEEE.

关键词： Analytical models

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Preface

Lecture Notes in Networks and Systems

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Lecture Notes in Networks and Systems 2024年 1076 LNNS卷 v-vii页

作者： Biele, Cezary Kacprzyk, Janusz Kopeć, Wieslaw Możaryn, Jakub Owsiński, Jan W. Romanowski, Andrzej Sikorski, Marcin National Information Processing Institute Warszaw Poland Polish Academy of Sciences Systems Research Institute Warsaw Poland Polish-Japanese Academy of Information Technology Warsaw Poland Institute of Automatic Control and Robotics Faculty of Mechatronics Warsaw University of Technology Warsaw Poland Institute of Applied Computer Science Faculty of Electrical Electronic Computer and Control Engineering Lódż University of Technology LODZ Poland Department of Applied Informatics in Management Faculty of Management and Economics Gdańsk University of Technology Gdańsk Poland

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Multimodal sentiment analysis applied to interaction between patients and a humanoid robot Pepper

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IFAC-PapersOnLine 2019年第27期52卷 411-414页

作者： Agnieszka Rozanska Michal Podpora Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Poland Weegree Sp. z o.o. S.K. Poland

In this paper authors briefly summarize the concept, motivation and exemplary implementation of an IoT-based external emotion sensor, designed for the purpose of Multimodal Sentiment Analysis. The device includes Raspberry Pi, a camera and a microphone, and serves as a standalone source of information about interlocutor’s emotions, facial expressions, body language, etc. by analyzing audio, text and video.

关键词： Humanoid Robots Human-Machine Interaction Multimodal Sentiment Analysis Pepper Robot Nonverbal Communication

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