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arXiv 2021年

作者： Irofti, Paul Romero-Ben, Luis Stoican, Florin Puig, Vicenç Department of Computer Science Faculty of Mathematics and Computer Science University of Bucharest Romania Institut de Robòtica i Informàtica Industrial Universitat Politècnica de Catalunya Barcelona Spain Politehnica University of Bucharest Dept. of Automation Control and Systems Engineering Romania

In this paper, we propose a data-driven leak localization method for water distribution networks (WDNs) which combines two complementary approaches: graph-based interpolation and dictionary classification. The former estimates the complete WDN hydraulic state (i.e., hydraulic heads) from real measurements at certain nodes and the network graph. Then, these actual measurements, together with a subset of valuable estimated states, are used to feed and train the dictionary learning scheme. Thus, the meshing of these two methods is explored, showing that its performance is superior to either approach alone, even deriving different mechanisms to increase its resilience to classical problems (e.g., dimensionality, interpolation errors, etc.). The approach is validated using the L-TOWN benchmark proposed at BattLeDIM2020. Copyright © 2021, The Authors. All rights reserved.

关键词： Water distribution systems

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Nano-assembly of DNA based electronic devices using atomic force microscopy

Nano-assembly of DNA based electronic devices using atomic f...

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IEEE International Workshop on Intelligent Robots and systems (IROS)

作者： Guangyong Li Ning Xi Heping Chen W.J. Li C.K.M. Fung R.H.M. Chan Mingjun Zhang Tzyh-Jong Tarn Dept. of Electrical & Computer Eng. Michigan State University East Lansing MI USA Life Sciences Division Agilent Technologies Inc. Palo Alto CA USA Dept. of Automation & Computer-Aided Eng. The Chinese University of Hong Kong Hong Kong China Department of Automation & Computer-Aided Engineering Chinese University of Hong Kong Hong Kong China Life Sciences Division Agilent Technologies Palo Alto CA USA Dept. of Systems Science and Mathematics Washington University at St. Louis St. Louis MO USA

DNA electronics circuits require an efficient way to accurately position and individually manipulate DNA molecules. The recent development of atomic force microscopy (AFM) seems to be a promising solution. We have recently developed an AFM based augmented reality system. This new system can provide both real-time force feedback and real-time visual feedback during nanomanipulation. We have shown that nano-imprinting and manipulation of nano-particles and nano-rods can be easily performed under assistance of the augmented reality system. In this research, the system's ability is extended to manipulation of DNA molecules. Using a polynomial fitting method, the deformation of DNA molecules is displayed in real time in the augmented reality system during manipulation. Indeed, DNA molecules adopt many different structures including kinks, bends, bulges and distortions. These different structures and inappropriate physical contacts may result in the controversy of DNA conductivity reported over the last decade. The AFM based nanomanipulation system can be used either as a nanolithography tool to make small gap electrodes or a nanomanipulation tool to elongate, deform and cut DNA molecules. The measurement of the conductivity of DNA molecules in their different shapes and structures is a promising method to find conclusive evidences, which verify the electrical conductivity of DNA molecules.

关键词： Atomic force microscopy Nanoscale devices DNA Electron microscopy Augmented reality Real time systems Conductivity Force feedback Shape measurement Electronic circuits

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Simulation Model of the Hydraulic Drive of the Rotary Column of the Robot Manipulator

Simulation Model of the Hydraulic Drive of the Rotary Column...

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International Conference on control systems, Mathematical Modelling, automation and Energy Efficiency (SUMMA)

作者： Sergey A Kolpashchikov Michail A Terekhin Evgeny V Kozlov Artem A Portnov Dmitry S Kalugin Ivan V Surguchev Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia Dept. Digital Technologies Higher School of Medical Engineering Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara State University of Railway Transport Samara Russia Dept. Digital Technologies Samara State University of Railway Transport Samara Russia Dept. Digital Technologies Samara Institute of Innovative Development FSBEI HE SamSMU MOH Russia State University of Railway Transport Samara Russia

The purpose of the work is to develop a simulation model of the hydraulic drive of the rotary column of the robot manipulator, which provides an adequate similarity of the proposed model with a real object. Modeling of the system was carried out with the help of modern FluidSIM Hydraulics software, which allows to intuitively reproduce and evaluate the operation of the system without using special complex mathematical structures for describing the research model. The result modeling is the transient processes hydraulic motor rotation, position value hydraulic distributor, pressure values in hydraulic lines, pushbutton state. The obtained dependences of numerical values at various time intervals, presented in the corresponding section of this work, allow us to conclude that the developed model adequately describes the nature and behavior of the object under study, corresponding to the normal mode of operation of the hydraulic system. When changing the initial data of the simulation model, it is possible to achieve other operating modes, for example, emergency ones. The developed system rotates clockwise and counterclockwise, control is carried out using a relay-contactor system. The simulation of the system was carried out taking into account the compensation of hydraulic shocks in the hydraulic lines when changing the direction of rotation in the opposite direction. Based on the results obtained, it can be concluded that the efficiency of the hydraulic drive of the rotary column of the robot manipulator depends on several main factors, such as speed, load and pressure in the hydraulic lines. Changing these parameters can affect the system both positively, leading to an increase in the efficiency of the system as a whole, and negatively and lead to a decrease in positioning accuracy, an increase in the reaction time of the system and the efficiency of power transmission. The results obtained are of interest not only for engineers of hydraulic drive systems, but also

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Innovative Competency-Based Electrical Engineering Curriculum 54

Innovative Competency-Based Electrical Engineering Curriculu...

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54th IEEE Frontiers in Education Conference, FIE 2024

作者： Rehder, Gustavo P. Serrano, Ariana L. C. Grimoni, José B. Brandão, Anarosa A. F. Silva, Magno M. T. Moriya, Henrique T. Panazio, Cristiano M. Barbero, Edson Alayo, Marco I. Gianesi, Irineu G. N. Seabra, Antonio C. Universidade de São Paulo Electronic Systems Department The Escola Politécnica São Paulo Brazil Universidade de São Paulo Electric Automation and Energy Dept. The Escola Politécnica São Paulo Brazil Universidade de São Paulo Computer Engineering and Digital Systems Department The Escola Politécnica São Paulo Brazil Universidade de São Paulo Telecommunications and Control Dept. The Escola Politécnica São Paulo Brazil Á lvares Penteado School of Commerce Foundation São Paulo Brazil Instituto Mauá de Tecnologia São Paulo Brazil

ISBN: (纸本)9798350351507

The Electrical Engineering undergraduate program of the Escola Politécnica of the Universidade de São Paulo has created an alternative innovative curriculum path for its freshmen students in 2024. The Competency-based Path emphasizes the development of competencies and skills for the unprecedented technological advancements that necessitate a holistic education for future electrical engineers, preparing them with practical skills for real-world challenges. The program was designed using an innovative methodology and centers around semester-long or year-long integrative projects. These projects bridge the gap between theory and practice, as students deal with real-world challenges while fostering social responsibility. © 2024 IEEE.

关键词： Students

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Clock Synchronization for Wireless Sensor Network with Communication Delay

Clock Synchronization for Wireless Sensor Network with Commu...

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American control Conference

作者： Emanuele Garone Andrea Gasparri Francesco Lamonaca Faculty of Applied Science Control and Systems Analysis Department Université Libre de Bruxelles 1050 Brussels Belgium Department of Computer Science and Automation University of "Roma Tre" Via della Vasca Navale 79 00146 Rome Italy Dept. of Electronic Systems and Computer Science University of Calabria Ponte Pietro Bucci 87040 Rende (CS)

ISBN: (纸本)9781479901777

In this work, the clock synchronization problem for wireless sensor networks is addressed. In our scenario, we consider a wireless sensor network where nodes are equipped with a local clock hardware and communicate in order to achieve a common sense of time. This work introduces a novel synchronization algorithm able to ensure a good level of synchronization even in the presence of random bounded communication delays. A theoretical analysis of the robustness of the proposed algorithm is proposed along with simulations to corroborate the theoretical finding.

关键词： Communication Delay clock synchronization theoretical finding

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Study of the Shock Loads Effect on the Operation of Multi-Motor Electric Drives of a Rolling Mill with a Second-order Elastic Coupling 5

Study of the Shock Loads Effect on the Operation of Multi-Mo...

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5th IEEE International Conference on Modern Electrical and Energy System, MEES 2023

作者： Tytiuk, Valerii Kalinin, Alexey Druzhinin, Valeriy Kuznetsov, Vitalii Chornyi, Oleksii Busher, Victor Kryvyi Rih National University Department of Electromechanics Kryvyi Rih Ukraine Abylkas Saginov Karaganda Technical University Npjsc Department of Informative Computer Systems Karaganda Kazakhstan Karaganda Industrial University Npjsc Department of Power Engineering Temirtau Kazakhstan Ukrainian State University of Science and Technologies Department of the Electrical Engineering Dnipro Ukraine National University Institute of Electromechanics Energy Saving and Automatic Control Systems Kremenchuk Mykhailo Ostrogradskyi Kremenchuk Ukraine National University "odessa Maritime Academy" Dept. of Electrical Engineering and Electronics Odessa Ukraine

ISBN: (纸本)9798350359787

This paper presents a study for optimizing a hot rolling mill. The paper is devoted to the study of ways to reduce the effect of shock loads of synchronous electric drives of the roughing mill group on the relative lengthening of the metal strip in the inter-stand gap of the rolling stands of the finishing mill group. The elasticity of the metal strip in the inter-stand gap of the rolling mill has a significant impact on the movement of intercoupled multi-motor electric drives of the finishing mill group. Another crucial route of exposure that influences the motion of the electric drives within the finishing mill group involves the electromagnetic connection between the drives in the roughing and finishing mill groups. The impact of the electromagnetically connected circuits is evident through the effect of shock loads from synchronous electric drives on the angular velocity of the direct current electric drives within the finishing mill group. The characteristics of the electromagnetic communication circuit are established by the power grid arrangement and equipment specifications. To assess the quality of work of electric drives of the finishing mill group, it is proposed to use the relative lengthening of the metal strip in the inter-stand gap, which is an important indirect indicator of the quality of rolling. The mathematical model of a hot rolling mill that takes into account both the elasticity of the metal strip that connects the DC electric drives of the finishing group, and the electromagnetic coupling circuit that takes into account the impact loads of synchronous electric drives of the roughing group on the example of the mill 1700 of ArcelorMittal Temirtau JSC was proposed in this paper. Using the mathematical model developed in Simulink software using the methods of planning the experiment, regression models were obtained to establish the dependence of the parameters of overexcitation of a synchronous motor on the magnitude of the voltage sag in the no

关键词： Electric loads

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Pulling Figure of Dielectric Resonator for 3D Filament Defectoscopy

Pulling Figure of Dielectric Resonator for 3D Filament Defec...

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International Scientific Symposium on Metrology and Metrology Assurance (MMA)

作者： Maryna Miroshnyk Olga Zaichenko Anatolii Miroshnyk Nataliia Hapon Yurii Pakhomov Liubov Klymenko dept. of Theoretical and Applied System Engineering V. N. Karazin Kharkiv National University Kharkov Ukraine dept. of Design and Operation of Electronic Devices Kharkiv National University of Radioelectronics Kharkiv Ukraine dept. of Design Automation Kharkiv National University of Radioelectronics) Kharkiv Ukraine dept. of Computer Science and Information Technologies O.M. Beketov National University of Urban Economy in Kharkiv Kharkiv Ukraine dept. of Specialized Computer Systems Ukrainian State University of Railway Transport Kharkiv Ukraine

ISBN: (数字)9798350352832

ISBN: (纸本)9798350352849

The research aim is to derive connection between the parameters of dielectric resonators frequency shift and the warp defect of 3D printing filament. Object of investigation are the processes of interaction of electromagnetic wave of a dielectric resonator with filament for 3D printing. The proposed model describes the connection between the frequency shift and defect warp of filament frequency pulling depending on the load.

关键词： Electromagnetic scattering Resonant frequency Estimation Metrology Three-dimensional printing Resonance Dielectrics Frequency measurement Resonators Load modeling

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Bayesian Neural Networks Uncertainty Quantification with Cubature Rules

Bayesian Neural Networks Uncertainty Quantification with Cub...

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International Joint Conference on Neural Networks (IJCNN)

作者： Peng Wang Nidhal C. Bouaynaya Lyudmila Mihaylova Jikai Wang Qibin Zhang Renke He Automatic Control & Systems Engineering Dept. The University of Sheffield Information and Navigation College Air Force Engineering University The 32nd Research Institute of CETC Department of Automation University of Science and Technology of China Department of Electrical and Computer Engineering Rowan University

ISBN: (数字)9781728169262

ISBN: (纸本)9781728169279

Bayesian neural networks are powerful inference methods by accounting for randomness in the data and the network model. Uncertainty quantification at the output of neural networks is critical, especially for applications such as autonomous driving and hazardous weather forecasting. However, approaches for theoretical analysis of Bayesian neural networks remain limited. This paper makes a step forward towards mathematical quantification of uncertainty in neural network models and proposes a cubature-rule-based computationally-efficient uncertainty quantification approach that captures layer-wise uncertainties of Bayesian neural networks. The proposed approach approximates the first two moments of the posterior distribution of the parameters by propagating cubature points across the network nonlinearities. Simulation results show that the proposed approach can achieve more diverse layer-wise uncertainty quantification results of neural networks with a fast convergence rate.

关键词： Neural networks Uncertainty Bayes methods Computational modeling Gaussian distribution Two dimensional displays Weather forecasting

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Simulation Model of Hydraulic Feed System with Differential Cylinder

Simulation Model of Hydraulic Feed System with Differential ...

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International Conference on control systems, Mathematical Modelling, automation and Energy Efficiency (SUMMA)

作者： Ilya L Sandler Dmitriy V Ivanov Michail A Terekhin Sergey A Kolpashchikov Alexey V Vossin Artem V Portnov Dept. Digital Technologies Samara State University of Railway Transport Samara Russia Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia Dept. Information Systems Security Samara National Research University Samara Russia Higher School of Medical Engineering Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara Russia Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara Russia

The paper presents a simulation model of a hydraulic feed system with a differential cylinder, which allows you to explore the system and visually examine its operation. During the simulation, transient processes were obtained at various points of the hydraulic control system. The simulation results show the adequate operation of the system under study. The work is of interest to researchers and engineers in the field of building automatic hydraulic drive control systems. Also, the results obtained can be used for educational purposes.

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Digital Map Generation Workflow Demonstrated on ZalaZONE Automotive Proving Ground Elements

Digital Map Generation Workflow Demonstrated on ZalaZONE Aut...

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IEEE Symposium on Network Operations and Management

作者： Árpád Somogyi Tamás Tettamanti Pál Varga Zsolt Szalay Dániel Baranyai Tamás Lovas Dept. of Photogrammetry and Geoinformatics Fac. of Civil Engineering Budapest University of Technology and Economics Budapest Hungary Systems and Control Laboratory Institute for Computer Science and Control of the Eötvös Loránd Research Network Budapest Hungary Dept. of Telecommunications and Media Informatics Fac. of Electrical Engineering and Informatics Budapest University of Technology and Economics Budapest Hungary Dept. of Automotive Technologies Fac. of Transportation Eng. and Vehicle Eng. Budapest University of Technology and Economics Budapest Hungary

One major goal of digital twin technology applied in the Architecture, Engineering, and Construction (AEC) Industry is the mapping of roads and road environments with their associated information. Such digital twins can support cost-effective testing, simulations, and the production of mapping backgrounds for automated vehicles and generally for Cooperative, Connected and Automated Mobility (CCAM) developments. The efficient workflow that leads from data acquisition to finished products depends on a number of requirements and knowledge sets. The main contribution of the paper is a general methodology of creating HD-map from point cloud and image data set. Accordingly, the most widely used survey techniques are presented and the requirements for the objects to be derived are summarized. The paper then outlines a general implementation procedure as an expert knowledge through a real-life example, where the results obtained for the ZalaZONE Automotive Proving Ground are demonstrated.

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