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International Symposium on Applied Machine Intelligence and Informatics (SAMI)

作者： Brúnó Krasnyánszki Sándor Tihamér Brassai András Németh Under Graduate Student in Computer Science Engineering Óbuda University Budapest Hungary Department of Electrical Engineering Sapientia Hungarian University of Transylvania Corunca Romania Department of Electronic Warfare National University of Public Service Budapest Hungary

Unmanned Aerial Vehicles (UAVs) and Unmanned Aerial Systems (UAS) are more important than ever before and we’re using it daily for agriculture, photo making, film industry, Search & Rescue, long range cable quality control, Geo Informatics, cartography, and state use (including border protection, disaster recovery and the military). Most of the UAV/UAS devices are using digital communication protocols nowadays, especially the IEEE 802.11 Wireless Local Area of Network for the cheaper and middle price UAV/UAS. Unfortunately, the protocols specified by the previously mentioned IEEE standard are vulnerable against some attacks. This research paper proposes a method that can interrupt the normal operation of the UAV/UAS that are using the IEEE 802.11 protocol and hijack the interrupted UAV/UAS permanently. For this method, deauthentication attack has been performed against the UAV/UASs. The attack vector is capable of denying the communication between the UAV and the control station. With sufficient prior knowledge it is possible to hijack the UAV that communicates on a 802.11 based protocol. Deauthentication based attacks are much more sophisticated than for example traditional electronic jamming, because the target can be precisely chosen and the attack will not interrupt other devices using the same communication method. The research has unfortunately some limitations in equipment, measurements conducted only in three different types of UAVs from three price categories, but in the future the authors would like to extend the range of UAVs. From this three UAVs two are hijackable by this method and the third should also be hijackable with some modifications. This research could be a base later for UAV/UAS counter measure systems for the safety of all of us.

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SDEMG: SCORE-BASED DIFFUSION MODEL FOR SURFACE ELECTROMYOGRAPHIC SIGNAL DENOISING

arXiv

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arXiv 2024年

作者： Liu, Yu-Tung Wang, Kuan-Chen Liu, Kai-Chun Peng, Sheng-Yu Tsao, Yu Department of Electronics and Electrical Engineering National Yang Ming Chiao Tung University Taiwan Graduate Institute of Communication Engineering National Taiwan University Taiwan Department of Electronic Engineering National Taipei University of Technology Taiwan Department of Electrical Engineering National Taiwan University of Science and Technology Taiwan Research Center for Information Technology Innovation Academia Sinica Taiwan

Surface electromyography (sEMG) recordings can be influenced by electrocardiogram (ECG) signals when the muscle being monitored is close to the heart. Several existing methods use signal-processing-based approaches, such as high-pass filter and template subtraction, while some derive mapping functions to restore clean sEMG signals from noisy sEMG (sEMG with ECG interference). Recently, the score-based diffusion model, a renowned generative model, has been introduced to generate high-quality and accurate samples with noisy input data. In this study, we proposed a novel approach, termed SDEMG, as a score-based diffusion model for sEMG signal denoising. To evaluate the proposed SDEMG approach, we conduct experiments to reduce noise in sEMG signals, employing data from an openly accessible source, the Non-Invasive Adaptive Prosthetics database, along with ECG signals from the MIT-BIH Normal Sinus Rhythm Database. The experiment result indicates that SDEMG outperformed comparative methods and produced high-quality sEMG samples. The source code of SDEMG the framework is available at: https://***/tonyliu0910/SDEMG © 2024, CC BY.

关键词： Electrocardiograms

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A Platform for Monitoring Student Commuting in the Use of School Transport in Smart Cities - A Facial Recognition Based Approach

A Platform for Monitoring Student Commuting in the Use of Sc...

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2023 International Conference on Smart Applications, Communications and Networking, SmartNets 2023

作者： Da Costa Rocha, Jesse De Souza, Marcela Alves Cardoso, Evelin Helena Silva Vijaykumar, Nandamudi De Araujo, Jasmine Priscyla Leite Frances, Renato Lisboa Graduate Program in Electrical Engineering Belém Para Brazil Information and Communication Technology Center Marabá Para Brazil Department of Computer Science Capitão Poço Para Brazil Coordination of Applied Research and Technological Development São Paulo Brazil

ISBN: (纸本)9798350302523

This article proposes an intelligent platform for monitoring students' steps on their way to school until they leave the school to their homes. This platform can identify students and notify those responsible and competent authorities in various situations of school life, such as: entering and leaving the school bus, entering and leaving school, entering the school cafeteria, etc. The first application aims to control access to the school bus through facial recognition. In the tests carried out, the recognition system achieved excellent results in all metrics. © 2023 IEEE.

关键词： Students

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SDEMG: Score-Based Diffusion Model for Surface Electromyographic Signal Denoising

SDEMG: Score-Based Diffusion Model for Surface Electromyogra...

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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Yu-Tung Liu Kuan-Chen Wang Kai-Chun Liu Sheng-Yu Peng Yu Tsao Department of Electronics and Electrical Engineering National Yang Ming Chiao Tung University Taiwan Research Center for Information Technology Innovation Academia Sinica Taiwan Graduate Institute of Communication Engineering National Taiwan University Taiwan Department of Electronic Engineering National Taipei University of Technology Taiwan Department of Electrical Engineering National Taiwan University of Science and Technology Taiwan

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Singularity-Free Quaternion Representation to Control a UGV-UAV Formation Performing Trajectory-Tracking Tasks

Singularity-Free Quaternion Representation to Control a UGV-...

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2021 International Conference on Unmanned Aircraft Systems, ICUAS 2021

作者： Marciano, Harrison Neves Brandao, Alexandre Santos Sarcinelli-Filho, Mario Federal University of Espírito Santo Graduate Program on Electrical Engineering Vitória Brazil Federal University of Viçosa Department of Electrical Engineering Viçosa Brazil

ISBN: (纸本)9780738131153

A formation composed by a ground unmanned vehicle (UGV) and an unmanned aerial vehicle (UAV) is considered here. The UAV should land on the UGV, which emulates a static or moving base station for the UAV. In such case, issues related to formation singularities may occur. An example of singularity is the fact that the UAV is not guaranteed to be laterally aligned with the UGV, thus not allowing to precisely get the current state of the formation when starting the landing maneuver. Focusing on this specific situation, this paper proposes a singularity-free representation of the formation, based on quaternions, and a formation controller, based on this formulation, to guide the formation in trajectory-tracking tasks. Besides the theoretical development, the paper also provides results of experiments run using a formation composed by a Pioneer 3-DX UGV and a Bebop 2 UAV, which validate the proposed formulation and controller. © 2021 IEEE.

关键词： Antennas

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Output Feedback Control of TS Fuzzy Systems with Unmeasured Nonlinearities via a Local Separation Principle

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IFAC-PapersOnLine 2023年第2期56卷 2164-2169页

作者： Anh-Tu Nguyen Pedro Coutinho Márcia Peixoto Thierry-Marie Guerra Reinaldo Palhares LAMIH UMR CNRS 8201 Université Polytechnique Hauts-de-France France Federal University of Minas Gerais Graduate Program in Electrical Engineering Brazil Federal University of Minas Gerais Department of Electronics Engineering Brazil

This paper presents a fuzzy observer-based control framework for TS fuzzy models with nonlinear consequents (N-TS). The N-TS fuzzy model is constructed such that only measured nonlinearities are considered to obtain the fuzzy membership functions, and all unmeasured nonlinearities are modeled as local consequent parts. Based on the differential mean value theorem, the closed-loop system is rewritten in an adequate format, which allows proving the separation principle for asymptotic TS fuzzy observer-based control design. Sufficient design conditions, expressed in terms of linear matrix inequalities, are derived via delayed nonquadratic Lyapunov functions for the synthesis of both stabilizing fuzzy controller and Luenberger-like fuzzy observer. Using Lyapunov-based arguments of a local separation principle, a constructive procedure is provided to maximize the closed-loop domain of attraction (DoA) estimation, which is guaranteed to be included inside the predefined fuzzy modeling region. Numerical examples are given to illustrate the effectiveness of the proposed approach.

关键词： Takagi-Sugeno fuzzy systems observer-based fuzzy control separation principle unmeasured premise variables linear matrix inequality

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Output Performance Evaluation of Modified Electrodes for Microbial Batteries

Output Performance Evaluation of Modified Electrodes for Mic...

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IEEE Eurasia Conference on IOT, Communication and engineering (ECICE)

作者： Daikaku Ishibashi Tomohiro Tojo Department of System Engineering Graduate School of Science and Engineering Shizuoka Institute of Science and Technology Shizuoka Japan Department of Electrical and Electronic Engineering Faculty of Science and Technology Shizuoka Institute of Science and Technology Shizuoka Japan

Recently, microbial batteries have attracted attention as a new power generation method. A microbial battery obtains power from the action of power-generating bacteria and generates power without electrochemical reactions or electrical conversion using solar or wind energy. Since it obtains electricity from the soil, it generates electricity regardless of the weather and does not emit harmful substances. However, currently available microbial batteries generate only a small amount of electric energy, and there are many problems in the operation of mobile batteries and small sensors. In addition, although research on power-generating bacteria and the improvement of electrode materials are progressing, there are currently few reports that combine electrodes and electricity-generating bacteria as microbial batteries. In this study, we produced a microbial battery to charge smartphones, laptop computers, and electric vehicles by extracting power from the soil under circumstances where it is difficult to secure a power source such as a disaster. Therefore, after confirming that it is possible to generate electricity with familiar soil, we explored the conditions for the improvement of power generation efficiency. In particular, we modified the electrodes so that power-generating bacteria could efficiently decompose organic molecules in soil and convert them into electrical energy. To evaluate the performance of the microbial battery, we applied the diffusion equation used to determine the reaction rate of lithium-ion batteries.

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A Load-Independent Multi-Relays Wireless Power Transfer with Self-Regulation and Single Compensation Network

A Load-Independent Multi-Relays Wireless Power Transfer with...

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Annual IEEE Conference on Applied Power electronics Conference and Exposition (APEC)

作者： Jong-Hun Kim Najam Ul Hassan Seogyong Jeong Myeong-Ho Kim Min-Sik Kim Jee-Hoon Jung Byunghun Lee Se-Un Shin Graduate School of Semiconductor Technology Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea Department of Electrical Engineering University of Michigan Dearborn USA Samsung Electronics Seoul Republic of Korea Department of Electrical Engineering Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea Department of Electrical Engineering Ulsan Institute of Science and Technology (UNIST) Ulsan Republic of Korea Department of Electronic/Biomedical Engineering Hanyang University Seoul Republic of Korea

ISBN: (数字)9798331516116

ISBN: (纸本)9798331516123

Wireless power transfer (WPT) technology is gaining prominence as a research focus in both industry and academia, particularly for applications where delivering power via metallic conductors is impractical. This paper introduces a WPT system designed for easy implementation near real-world demands, achieved through reduced circuit components and manufacturing costs. The system efficiently supplies power to various electrical devices that require constant-voltage (CV), constant-current (CC), or both CV/CC modes simultaneously like lithium-ion (Li-Ion) batteries. A single compensation network enables straightforward attainment of either CV or CC output, facilitated by a load-independent power-stage and control methodology. Experimental results demonstrate a PWM-based resonant regulating rectifier (3R), achieving a maximum power transfer efficiency (PTE) of 74.5% under two loads positioned 300 mm apart from a half-bridge class-D power transmitter (Tx).

关键词： Lithium-ion batteries Transmitters Rectifiers Prototypes Wireless power transfer Regulation Power electronics Manufacturing Relays Load modeling

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An Investigation of Heuristic Control Strategies for Multi-Electrolyzer Wind-Hydrogen Systems Considering Degradation

An Investigation of Heuristic Control Strategies for Multi-E...

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2023 IEEE Conference on Control Technology and Applications, CCTA 2023

作者： Tully, Zachary Starke, Genevieve Johnson, Kathryn King, Jennifer Colorado School of Mines Advanced Energy Systems Graduate Program GoldenCO80401 United States National Renewable Energy Laboratory GoldenCO80401 United States Colorado School of Mines Electrical Engineering Department GoldenCO80401 United States

ISBN: (纸本)9798350335446

With the growing demand for renewable-energy-powered hydrogen generation and the corresponding increase in plant capacity, individually controlling many electrolyzer stacks will be critical for increasing the plant's lifetime and efficiency. This paper introduces a rule-based controller framework targeting electrolyzer degradation to explore the opportunity space in multi-stack hydrogen plant control. A novel control-oriented degradation model is also presented in this work, which quantifies the impact of steady power input, fluctuating power input, and the number of startup/shutdown cycles on electrolyzer degradation. Using a wind power input signal, 13 controller configurations are tested on 5 MW hydrogen plants consisting of 2, 5, 10, and 25 stacks. These configurations are evaluated on their capability to mitigate electrolyzer degradation and efficiently produce hydrogen from the time-varying input power. The results show that multi-stack control for degradation can extend the plant's lifetime by more than a factor of 3 with minimal impact on instantaneous hydrogen production. © 2023 IEEE.

关键词： Controllers

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A Load Compensation Controller for Off-the-shelf Unmanned Aerial Vehicles

A Load Compensation Controller for Off-the-shelf Unmanned Ae...

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International Conference on Unmanned Aircraft Systems (ICUAS)

作者： Vinícius Pacheco Bacheti Daniel Khéde Dourado Villa Alexandre Santos Brandão Mário Sarcinelli-Filho The Graduate Program on Electrical Engineering Federal University of Espírito Santo Vitória ES Brazil The Department of Electrical Engineering Federal University of Viçosa Viçosa MG Brazil

This paper addresses the problem of controlling a system composed of a unmanned aerial vehicle and a payload attached to it via a cable, while compensating for the payload effects on the drone. This work considers that many off-the-shelf UAVs have their own low-level controller which the user cannot access, and attempts to merge the classical approach of modeling a drone-mass system with controllers previously developed for use with drones equipped with low-level controllers. In order to test such an approach the robot Anafi, from Parrot Drones SAS, was used with a mass attached to it. The experiments show a consistent reduction on navigation errors, which helps validate the proposed method.

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