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23rd IEEE International Conference on Machine Learning and Applications, ICMLA 2024

作者： Veres, David Li, Ping Kadirkamanathan, Visakan The University of Sheffield Department of Automatic Control and Systems Engineering Sheffield United Kingdom

ISBN: (纸本)9798350374889

Dynamic Bayesian Networks (DBNs) are useful tools for modelling complex systems whose network representations can be elicited a priori or learnt from data. In this paper, a maximum likelihood Doubly-Iterative Expectation Maximization (DI-EM) Algorithm is developed for the identification of grey-box ARMAX state-space model representations of DBNs involving known, noisy measurement processes. The grey-box model incorporates network dependencies among time series variables and exploits time series data of low longitudinal and high cross-sectional dimensions. A network learning procedure is developed using a score-based structure-selection method to find the underlying network of an input-driven dynamical system. By computing a finite data version of the Bayesian Information Criterion (BIC) for small sample sizes, the proposed method's performance is investigated on simulated and real-world data. The algorithm recovers the underlying ground-truth networks of simulated systems under finite data criteria with Jaccard Coefficient values of up to 0.84, and selects structures with improved weighted mean-squared error loss over a baseline black-box model fit on real-world data. © 2024 IEEE.

关键词： Expectation maximization algorithm

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A Power-Communication Co-Simulation Platform for Real-Time Microgrid Cyber Security Analysis

A Power-Communication Co-Simulation Platform for Real-Time M...

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2024 International Conference on Artificial Intelligence of Things and systems, AIoTSys 2024

作者： Qiu, Dongmeng Liu, Mengxiang Zhang, Xin University of Sheffield Department of Automatic Control and Systems Engineering Sheffield United Kingdom

ISBN: (纸本)9798331507886

The rapid digitalisation process in power system has greatly benefited the large-scale integration of distributed energy resources (DERs), essentially accelerating the progress towards net zero. However, numerous cyber attacks such as false data injection (FDI) attacks are impeding the normal control and operation activities. This paper aims to establish a real-Time microgrid co-simulation platform to fully study the impacts of realistic attack events on micorgrid's control performance. Although there exist a large number of power-communication co-simulation platforms for the power system, they are designed to mainly provide validation services for control and operation algorithms and little attention has been paid to the cyber security. In the established microgrid platform, power and communication parts are simulated in Typhoon Hardware-in-The-loop(HIL) 602+ and EXata Network Simulator, respectively, and a dedicated synchronisation scheme is developed and embedded in Raspberry Pis to achieve master-slave data exchange between them. Based on the advanced cyber libraries provided by EXata, realistic FDI and packet drop attacks are mounted against the mapped communication links within EXata. The results indicate that these cyber attacks can severely influence the microgrid control performance including destabilising system states and specific state deviations, further demonstrating the necessity of deploying effective cyber-resilience enhancement mechanisms. © 2024 IEEE.

关键词： Cyber attacks

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Experimental Study of Ultra-Wideband Interference Attenuation in a Flexible Printed Circuit Board Cable 3

Experimental Study of Ultra-Wideband Interference Attenuatio...

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3rd IEEE International Conference on Problems of Informatics, Electronics and Radio engineering, PIERE 2024

作者： Samoylichenko, Maria A. Zhechev, Evgeniy S. Zabolotsky, Alexander M. Tomsk State University of Control Systems and Radioelectronics Television and Control Department Tomsk Russia Tomsk State University of Control Systems and Radioelectronics Department of Microwave and Quantum Radio Engineering Tomsk Russia

ISBN: (纸本)9798331516321

The performance and functionality of radio electronic equipment depends on various factors including external. One of them is electromagnetic interference, in particular ultra-wideband interference. The paper considers the protection of radio-electronic equipment from the impact of ultra-wideband interference by using modal filtering in flexible printed cables. These cables are feature by a high degree of design and application diversity, which makes them particularly attractive for providing interconnections in modern electronic equipment. This material has a relatively high dielectric permittivity, which allows for a higher per-unit-length mode delay. We fabricated a flexible printed cable to conduct a full-scale experiment and studied it in the frequency and time domains. To validate the experimental studies, we performed quasistatic simulations. The experiment demonstrated that the ultra-wideband interference can be successfully attenuated in the cable, and the maximum attenuation was 3.6 times of the original value, with a bandwidth of 118 MHz. The discrepancy between the simulation and experimental results can be attributed to the unaccounted influence of coaxial-microstrip and coaxial transitions, as well as the discrepancy in dielectric electrical characteristics. © 2024 IEEE.

关键词： Radio equipment

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A Multi-Robot Allocation Scheme for Coverage control Applications with Multiple Areas of Interest 9

A Multi-Robot Allocation Scheme for Coverage Control Applica...

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9th International Conference on control, Decision and Information Technologies, CoDIT 2023

作者： Duca, Rachael N. Bugeja, Marvin K. University of Malta Department of Systems and Control Engineering Malta

ISBN: (纸本)9798350311402

Coverage control with a multi-robot system requires the robot team to be optimally distributed across some environment. This environment may have multiple, distinct areas of interest, each of which associated with a specific task that requires robots with particular capabilities. In such scenarios, the first problem to be solved is that of assigning each robot in the team to one of the importance areas, while accounting for the robots' capabilities and the task/area requirements. This paper investigates this problem and proposes a novel multi-robot task allocation (MRTA) scheme in the context of coverage control. More specifically, the proposed method employs integer linear programming (ILP) to solve the constrained robot-to-task allocation problem. The resulting algorithm allocates each robot in the heterogeneous team to one of the importance areas, subject to a number of realistic constraints such as the tasks' requirements, and the robots' capabilities and energy levels. Our approach introduces elements of fault tolerance and robustness to situational changes, since it can also be executed periodically during the coverage process, to reassign the robots in case of robot faults, changes in the tasks/areas, and other factors that alter the allocation solution. The proposed scheme also has the advantage of being separate from the coverage control algorithm, and therefore supports a modular framework. Finally, a set of realistic simulated scenarios are used to validate the task allocation scheme being proposed. © 2023 IEEE.

关键词： Multipurpose robots

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Design and Simulation of an Automated Production Plant and Warehouse Management System

Design and Simulation of an Automated Production Plant and W...

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2023 International Conference on engineering, Science and Advanced Technology, ICESAT 2023

作者： Alnema, Yazen Hudhaifa Musaa, Alwaleed Khalid Ali, Mustafa Nabeeh Muhammad, Arjwan Osama Ninevah University Systems and Control Engineering Ninevah Iraq

ISBN: (纸本)9798350344400

This paper illustrates the implementation of a practical model that can simulate one of the applications in modern industries while also displaying the results remotely. Moreover, three steps of the automation pyramid have been achieved, starting from the field level and ending with the supervisory level (SCADA), which allows us to catch up with the fourth industrial revolution that is trending. The article can be summarized into three sections. The first one is about building a virtual automated warehouse system that utilizes a conveyor and a PLC to control the production line. The simulation of these processes has been implemented via the Factory I/O platform. It is subdivided into four subcategories: color-based sorting, material-based sorting, box size-based sorting, and packaging optimization. The Human-Machine Interface (HMI) design is also discussed, which optimizes stock requests. The second aspect of this paper focuses on practical work, specifically sorting by size. It also explores the use of pneumatic cylinders in separating boxes based on different dimensions. These cylinders are actuated through solenoid valves, which receive instructions from sensors and transmit signals to the PLC for efficient control. Finally, the Internet of Things (IoT) has a share in this project, which allows remote monitoring of the production line to increase safety and efficiency. © 2023 IEEE.

关键词： Automation

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Analyszing Signal Integrity in a Structure with Double Modal Redundancy Before and After Failures 3

Analyszing Signal Integrity in a Structure with Double Modal...

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3rd IEEE International Conference on Problems of Informatics, Electronics and Radio engineering, PIERE 2024

作者： Abramova, Ksenia N. Chub, Andrey V. Zhechev, Yevgeniy S. Tomsk State University of Control Systems and Radioelectronics Department of Television and Control Tomsk Russia Tomsk State University of Control Systems and Radioelectronics Department of Microwave and Quantum Radio Engineering Tomsk Russia

ISBN: (纸本)9798331516321

This paper presents the results of a signal integrity analysis for a structure with double modal redundancy (MR) before and after failures. Two failure cases are considered: open circuit and short circuit. The study investigates key signal integrity parameters such as S-parameters, signal phase, group delay time, and eye diagrams. The results show that after the first failure, the bandwidth of the structure increases, while it decreases after the second failure. The change in bandwidth affects the data rate that can be transmitted to the device input without significant signal distortion. Eye diagrams are analyzed for each case considering the data rate based on the bandwidth. The analysis of eye diagrams reveals that despite some deviations from the ideal eye shape in certain cases, the eye remains open, indicating a low probability of bit errors. A comparison of the results before and after failure, with the same data rate, shows that the failures in the redundant circuit have a negligible impact on the signal integrity within the bandwidth. © 2024 IEEE.

关键词： Group delay

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Context-Aided Semantic-Aware Self-Alignment for Video-Based Person Re-Identification

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IEEE Transactions on Circuits and systems for Video Technology 2025年第6期35卷 5307-5317页

作者： Ran, Zhidan Xiao, Zhiyao Lu, Xiaobo Wei, Xuan Liu, Wei Southeast University School of Automation Nanjing210096 China Ministry of Education Key Laboratory of Measurement and Control of Complex Systems of Engineering Nanjing210096 China

Video-based person re-identification (Re-ID) aims at associating the video sequences of the identical person across multiple cameras. The ubiquitous appearance misalignment poses a major obstacle for video person Re-ID. Existing alignment-based methods generally rely on off-the-shelf semantic parsing models to locate visible human parts, which ignore identifiable personal belongings and cannot handle various interferences (e.g., pedestrian detection errors and occlusions) in video clips. In this work, we propose a novel framework termed Context-Aided Semantic-Aware Self-Alignment (CSSA) for video-based person Re-ID. First, we propose to jointly learn pixel-level part-aligned representations and semantic-aligned global-level representations in an end-to-end manner. Unlike most existing approaches that depend on prior information in terms of pose for part estimation, CSSA can locate different body parts and achieve the pixel-level semantic alignment without extra human topology semantics. Second, a Context-Aided Region Enhancement (CARE) module is proposed to efficiently highlight macro-visual patterns associated with the target pedestrian and suppress noise caused by factors like background clutters and occlusions. Third, we propose a Semantic-Aware Global Feature Alignment (SGFA) method for generating pair-wise semantic-aligned global representations, which play an essential role in both the training and inference phases. Extensive experimental results on multiple challenging benchmarks indicate the superiority and effectiveness of the proposed CSSA. © 1991-2012 IEEE.

关键词： Semantic Segmentation

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CAD Modeling and Experimental Studies of Characteristics Broadband Antenna with CSRR Resonator 25

CAD Modeling and Experimental Studies of Characteristics Bro...

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25th IEEE International Conference of Young Professionals in Electron Devices and Materials, EDM 2024

作者： Guz, Egor E. Zhamaladin, Zhasulan T. Kisel, Natalia N. Institute of Radio Engineering Systems and Control Southern Federal University Taganrog Russia

ISBN: (纸本)9798350389234

This paper presents the results of modeling of a low-profile ultra-wideband microstrip monopole antenna with CSRR resonator in the range of 2-18 GHz. The antenna characteristics were calculated using specialized CAD software Altair FEKO. The paper presents the results of modeling and analysis of an ultra-wideband microstrip antenna with emphasis on the effect of including a double open-loop resonator on its characteristics. The performance of different antennas is compared. The results show that the inclusion of a CSRR resonator in the antenna design leads to the appearance of rejection zones, the position of which can be changed by varying the size of the resonator. In addition, real antenna designs with and without CSRR resonators have been developed and tested, and the performance of real antenna designs has been compared with numerical simulation results. Measurements of antenna directivity characteristics, frequency dependences of reflection coefficient and input impedance were carried out at the Center for Collective Use "Applied Electrodynamics and Antenna Measurements" of the Southern Federal University. The results of experimental studies fully correlate with the results of modeling, and confirm the appearance of the rejection zone in the frequency region of 6 GHz due to the use of CSRR resonator. © 2024 IEEE.

关键词： Ultra-wideband (UWB)

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Cooperative Output Regulation of Heterogeneous systems over Directed Graphs:A Dynamic Adaptive Event-Triggered Strategy

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Journal of systems Science & Complexity 2023年第3期36卷 909-921页

作者： SU Hang CHENG Bin LI Zhongkui State Key Laboratory for Turbulence and Complex Systems and Department of Mechanics and Engineering Science College of EngineeringPeking UniversityBeijing 100871China Department of Control Science and Engineering College of Electronics and Information EngineeringTongji UniversityShanghai 201804China Frontiers Science Center for Intelligent Autonomous Systems Shanghai 201210China

This paper investigates the cooperative output regulation problem of heterogeneous linear multi-agent systems over directed graphs with the constraint of communication *** that there exists an exosystem whose state information is not available to all agents,the authors develop distributed adaptive event-triggered observers for the followers based on relative information between neighboring *** should be pointed out that,two kinds of time-varying gains are introduced to avoid relying on any global information associated with the network,and dynamic triggering conditions are designed to get rid of continuous *** the basis of the designed observers,the authors devise a local controller for each *** with the existing related works,the main contribution of the current paper is that the cooperative output regulation problem for general directed graphs is solved requiring neither global information nor continuous communications.

关键词： Adaptive control consensus cooperative output regulation directed graph event-triggered control multi-agent systems

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Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

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Frontiers in Energy 2024年第1期18卷 16-27页

作者： Ziyuan TENG Chao TAN Peiyuan LIU Minfang HAN Fuel Cell and Energy Storage Center Department of Energy and Power EngineeringState Key Laboratory of Control and Simulation of Power Systems and Generation EquipmentTsinghua UniversityBeijing 100084China

The hydrogen fuel cell vehicle is rapidly developing in China for carbon reduction and *** paper evaluated the life-cycle cost and carbon emission of hydrogen energy via lots of field surveys,including hydrogen production and packing in chlor-alkali plants,transport by tube trailers,storage and refueling in hydrogen refueling stations(HRSs),and application for use in two different *** also conducted a comparative study for battery electric vehicles(BEVs)and internal combustion engine vehicles(ICEVs).The result indicates that hydrogen fuel cell vehicle(FCV)has the best environmental performance but the highest energy ***,a sufficient hydrogen supply can significantly reduce the carbon intensity and FCV energy cost of the current *** carbon emission for FCV application has the potential to decrease by 73.1%in City A and 43.8%in City *** only takes 11.0%–20.1%of the BEV emission and 8.2%–9.8%of the ICEV *** cost of FCV driving can be reduced by 39.1%in City *** improvement can be obtained with an economical and“greener”hydrogen production pathway.

关键词： hydrogen energy life-cycle assessment(LCA) fuel cell vehicle carbon emission energy cost

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