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arXiv 2023年

作者： Trummel, Tabea Liu, Zonglin Stursberg, Olaf Control and System Theory Dept. of Electrical Engineering and Computer Science University of Kassel Germany

This paper proposes a novel method to achieve and preserve synchronization for a set of connected heterogeneous Van der Pol oscillators. Unlike the state-of-the-art synchronization methods, in which a large coupling gain is applied to couple any pair of connected oscillators, the proposed method first casts the whole synchronization process into two phases. The first one considers the period from the beginning to the first instant of synchronization, while the second phase covers the following time in which synchronization must be preserved. It is shown that a large coupling gain is adopted for the first phase, while the averaged coupling gain to preserve the synchronization in the second phase can be reduced significantly by using an offline optimized coupling law. Efficiency and performance of this method are confirmed by a set of numerical tests with different graphs and system dynamics. © 2023, CC BY-NC-ND.

关键词： Synchronization

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Benchmarking Different Strategies for Offloading ROS2 Computation to the Edge

Benchmarking Different Strategies for Offloading ROS2 Comput...

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IEEE Conference on Network Softwarization (NetSoft)

作者： Daniele Cacciabue Jacopo Marino Francesco Aglieco Marco Levorato Domenico Perroni Fulvio Risso Dept. of Control and Computer Engineering Politecnico di Torino Torino Italy Dept. of Computer Science University of California Irvine CA USA Links Foundation Torino Italy Italdesign Torino Italy

ISBN: (数字)9798350369588

ISBN: (纸本)9798350369595

Mobile robots suffer from inherent limitations due to the tradeoff in the amount of energy consumed by their on-board processing components, and the need to increase their operational time. On the communication side, the volatility of communication links severely hinders the ability of a mobile device to rely on computation offloading. The challenge addressed by this paper is the development of a methodology and framework to effectively migrate the location of a service from a system to another, minimizing downtime and striving to reduce any side-effects that may be perceived by the system. Solving this challenge will pave the way for more effective computation offloading solutions that can cope with the unpredictability of the edge systems. Four different approaches are compared, analyzing their performance via an empirical approach. The insights gathered from data allow the identification of the most promising solution to address the aforementioned challenge.

关键词： Switches computer architecture Benchmark testing Mobile handsets Mobile robots Business continuity

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Combining Mental States Recognition and Machine Learning for Neurorehabilitation

Combining Mental States Recognition and Machine Learning for...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Tommaso Colafiglio Paolo Sorino Domenico Lofu Angela Lombardi Fedelucio Narducci Tommaso Di Noia Dept. of Electrical and Information Engineering (DEI) Politecnico di Bari Bari Italy Dept. of Computer Automatic and Management Engineering (DIAG) Sapienza Università di Roma Roma Italy

Brain-computer interfaces are widely used to control machines using Electroencephalography (EEG) signals. Several low-cost electroencephalographs are available on the market that achieves good-quality EEG signals. One of the most intriguing issues for developing biofeedback systems is classifying users' emotional states using EEG signals and Machine Learning (ML) methods. In our study, we propose a novel ML-based biofeedback tool using a BCI to detect two different users' mental states: Focus, and Relaxation. We compared several ML algorithms achieving an average accuracy on the Test Set of 0.90 by using SVM. Finally, we propose a prototype for music generation according to the classification output that could be adopted in neurorehabilitation scenarios.

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Introducing Modelling, Analysis and control of Three-Phase Electrical Systems Using Geometric Algebra

arXiv

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arXiv 2023年

作者： Velasco, Manel Zaplana, Isiah Dòria-Cerezo, Arnau Duarte, Josué Martí, Pau The Automatic Control Department Universitat Politècnica de Catalunya Barcelona Spain The Automatic Control Department Inst. of Industrial and Control Engineering Universitat Politècnica de Catalunya Barcelona Spain The Dept. of Electrical Engineering Inst. of Industrial and Control Engineering Universitat Politècnica de Catalunya Barcelona Spain

State-of-the-art techniques for modeling, analysis and control of three-phase electrical systems belong to the real-valued multi-input/multi-output (MIMO) domain, or to the complex-valued nonlinear single-input/single-output (SISO) domain. In order to complement both domains while simplifying complexity and offering new analysis and design perspectives, this paper introduces the application of geometric algebra (GA) principles to the modeling, analysis and control of three-phase electrical systems. The key contribution for the modeling part is the identification of the transformation that allows transferring real-valued linear MIMO systems into GA-valued linear SISO representations (with independence of having a balanced or unbalanced system). Closed-loop stability analysis in the new space is addressed by using intrinsic properties of GA. In addition, a recipe for designing stabilizing and decoupling GA-valued controllers is provided. Numerical examples illustrate key developments and experiments corroborate the main findings. © 2023, CC BY.

关键词： Geometry

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Effectiveness of computer-based e-Learning and Virtual Reality Training System for the Preparatory Phase of a Training on Maintenance Procedure

Effectiveness of Computer-based e-Learning and Virtual Reali...

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IEEE International Conference on Consumer Electronics (ICCE)

作者： Filippo Gabriele Pratticò Debora Di Cosmo Matteo Piviotti Giuseppe La Rosa Fabrizio Lamberti Dept. of Control and Computer Engineering Politecnico di Torino Turin Italy Leonardo S.p.a Turin Italy

This work investigates the effectiveness of two training systems based on consumer hardware technologies, a first one using computer-Based Learning (CBL) and the other exploiting Virtual Reality (VR). A user study was executed in order to compare the two training and analyze the most suitable approach for the learning of preparatory material in the context of an industrial assembly and maintenance (IMA) procedure. The results highlighted that, although trainees using VR experienced higher levels of cognitive processing and attention, the knowledge gain of CBL was comparable to that of VR for the preliminary phase training. Nonetheless, VR was still able to provide better learning gains in terms of procedural skills compared to CBL.

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Properties of singular solutions in optimal control problems under input dynamic extension

Properties of singular solutions in optimal control problems...

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IEEE Conference on Decision and control

作者： Paolo Di Giamberardino Daniela Iacoviello Dept. of Computer Control and Management Engineering Antonio Ruberti Sapienza University of Rome via Ariosto 25 Rome Italy

ISBN: (数字)9798350316339

ISBN: (纸本)9798350316346

The paper addresses the problem of optimal control design in presence of singular solutions for single input dynamics. The dynamical extension for systems obtained adding an integrator on the input is addressed and analyzed. The possibility of computing the optimal control for dynamically extended systems from the solution of the initial ones is investigated, as well as the inverse procedure. These relationships are well evidenced for the singular solutions, showing the possibility of simplifying the optimal control computation. An example is introduced to better highlight the presented results.

关键词： Optimal control Cost function

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The Second-Order Discrete-Analog Filter on Switched Capacitors with Three-Phase control

The Second-Order Discrete-Analog Filter on Switched Capacito...

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Wave Electronics and its Application in Information and Telecommunication Systems (WECONF)

作者： Darya Denisenko Dmitry Kuznetsov Yuri Ivanov Nikolay Butyrlagin Dept. of Scientific Research Don State Technical University Rostov-on-Don Russia Dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia Dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

ISBN: (数字)9781665465687

ISBN: (纸本)9781665465694

A discrete-analog filter of the second order with three frequency-setting capacitors has been developed, where the electronic keys are controlled by pulse sequences that do not intersect in time. It has been shown that in the proposed filter the pole frequency can be changed by changing the capacitance of the capacitor C1. In this case, the pole attenuation depends on the resistance of the resistor R5, the transmission coefficients are changed by resistors R1 or R2, and when changing one of the parameters, all other filter parameters remain unchanged. The performance of this filter is confirmed by the results of computer modeling in the Micro-Cap environment.

关键词： Band-pass filters Resistors Resistance Time-frequency analysis Capacitors Switches Attenuation Information filters Capacitance Tuning

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Averaged Models and Analysis of a Three-Phase CSI as a Dual of a Three-Phase VSI

Averaged Models and Analysis of a Three-Phase CSI as a Dual ...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Pau Boira Pujol Arnau Dòria-Cerezo Robert Griñó Inst. of Ind. and Control Engineering (IOC) Universitat Politècnica de Catalunya Barcelona Spain Dept. Electrical Engineering IOC Universitat Politècnica de Catalunya Barcelona Spain Dept. Automatic Control IOC Universitat Politècnica de Catalunya Barcelona Spain

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

The averaged model of a current source inverter (CSI) as a voltage source inverter (VSI) dual is presented in this paper. The differential equations defining the CSI are in-troduced in matrix representation for phase-to-phase and phase-to-neutral voltages and expressed using the Clarke and Park transformations. This multiple-input, multiple-output system is studied through the transfer function matrix of the linearized model, and the results are related to original CSI dynamics. Finally, open-loop simulations using Matlab/Simulink and realtime Typhoon-HIL have been carried out to validate the models.

关键词： Analytical models Voltage source inverters Tropical cyclones Transfer functions Oscilloscopes Modulation Switches

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Optical Data Center Implementation within Data Center Networks Context Based on Mininet 2

Optical Data Center Implementation within Data Center Networ...

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2nd International engineering Conference on Electrical, Energy, and Artificial Intelligence, EICEEAI 2023

作者： Abdulmahdi, Esraa Ali Ali, Adnan Hussein Ibrahim, Raed Khalid Al-Askery, Ali Alhamdane, Hayder Jasim Mahmood, Amal Ibrahim Electrical Engineering College Middle Technical University Student at Dept. of Computer Engineering Techniques Baghdad Iraq Institute of Technology Middle Technical University Electrical Techniques Department Baghdad Iraq Al-Farahidi University Department of Medical Instruments Engineering Techniques Baghdad Iraq Electrical Engineering College Middle Technical University Department of Control and Automation Technical Engineering Baghdad Iraq College of Applied Arts Middle Technical University Baghdad Iraq Electrical Engineering College Middle Technical University Dept. of Computer Engineering Techniques Baghdad Iraq

ISBN: (纸本)9798350373363

The technology of reconfigurable optical networks (RONs) is growing to be a promising solution to effectively cater to the rapidly increasing traffic generated by the digital society. Optical technology emerges as a viable alternative because to its capacity to offer a substantial bandwidth, little latency, and enhanced overall performance. Nevertheless, it is imperative to effectively manage the physical resources comprising a data center. This study provides an experimental demonstration of the RONs, which is enhanced by a control plane. The implementation relies on the monitoring of real-time network statistics. This enables the execution of various activities, including as network slice provisioning and reconfiguration, assignment of packet priority classes, and dynamic operations. These actions are performed to ensure the attainment of the desired Quality of Service level. The experimental results show the successfully implementation of RONs using Mininet Emulator and sFlow traffic monitoring technology. The results approve that optical datacenter has minimum delay with low OSNR even with long distance and fast switching time. © 2023 IEEE.

关键词： Optical switches

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System Identification-informed Transparent and Explainable Machine Learning with Application to Power Consumption Forecasting

System Identification-informed Transparent and Explainable M...

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2023 International Conference on Electrical, computer, Communications and Mechatronics engineering, ICECCME 2023

作者： Wei, Hua-Liang Dept. Automatic Control and Systems Engineering The University of Sheffield Sheffield United Kingdom Energy Institute The University of Sheffield Sheffield United Kingdom Centre of Machine Intelligence The University of Sheffield Sheffield United Kingdom Centre for Signal Processing and Cpmplex Systems The University of Sheffield Sheffield United Kingdom

ISBN: (纸本)9798350322972

System identification (SysID) is the art and science of dealing with dynamic data modelling problems from systems science perspectives. It has been an active field and is still very active today, due to its wide range of applications, especially its basic principles of finding transparent, interpretable and parsimonious models for different purposes. The past decades have witnessed the explosive growth in machine learning (ML) and its applications in all areas of science and engineering. Meanwhile, there has been an increasing demand for the development of transparent, explainable and/or interpretable ML models. This paper proposes a new framework for developing System Identification-informed Transparent and Explainable MAchine Learning (SITEMAL) models. A case study, involving a real power consumption dataset, is presented to demonstrate the application of the proposed modelling framework and its performance for power consumption forecasting. © 2023 IEEE.

关键词： Electric power utilization

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