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2023 IEEE International Conference on Robotics and Biomimetics, ROBIO 2023

作者： Tsukishiro, Rie Ogura, Rihito Soon, Matthew Itami, Taku Yoneyama, Jun Aoyama Gakuin University Department of Electrical and Electronic Engineering Kanagawa Japan Aoyama Gakuin Graduate School Graduate School of Electrical and Electronic Engineering Kanagawa Japan Texas Tech University Department of Computer Engineering LubbockTX79409 United States

ISBN: (纸本)9798350325706

The number of upper limb amputees all over the world is high and continue to increase. They need a prosthetic hand to have a more comfortably life. Grasping a thing properly with a prosthetic hand can smooth the movement of an upper-limb amputee and expand the range of possible activities. However, few prosthetic hands can automatically maintain a stable grasping posture, and most of them require the user to pay attention to doing it. In this study, we developed a new robotic prosthetic hand that can automatically maintain a stable grasping posture by using a wrist rotation mechanism, focusing on the center position of the grasping force from pressure sensors attached to each finger. This hand rotates its wrist according to the center position of the grasping force, which depends on the changing center of gravity position of the object grasped by the hand. From the results, it is confirmed that the grasp is maintained stably. © 2023 IEEE.

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Threshold-Based Electroencephalography Brain-Computer Interface for Robot Arm Control 8

Threshold-Based Electroencephalography Brain-Computer Interf...

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8th Asia-Pacific Conference on Intelligent Robot Systems, ACIRS 2023

作者： Rusydi, Muhammad Ilhamdi Amrina, Elita Winata, Yoan Ramadhani, Salisa Nofendra, Riko Graduate School Universitas Andalas Engineering Faculty Program of Engineer Professional Education Electrical Engineering Department Padang Indonesia Universitas Andalas Engineering Faculty Electrical Engineering Department Padang Indonesia

ISBN: (纸本)9798350302851

Brain-Computer Interface (BCI) is a technique that uses real-Time brain impulses to connect with and control external devices. BCI provides a new method for controlling external devices by translating brain signals into computer commands, facilitating the daily lives of people with disabilities and enhancing their ability to exhibit expected behavior. A Brain-Computer Interface (BCI) system based on Electroencephalography (EEG) was built to control the robotic arm. The EEG signals utilized included both eyes blinking, the right eye, the left eye, and the jaw contraction. EEG data were recorded from seven healthy subjects. The threshold approach is used to classify EEG signals, with the feature employed being the amplitude of the EEG signal. The highest threshold value for the blinking signal was 0.6 mV with an accuracy of 97.9%, while the best threshold value for jaw contraction was 0.4 mV with an accuracy of 93.34 percent. The healthy, inexperienced participants took part in system testing. The total results of testing each robot movement yielded an overall success rate of 84.52 percent. Therefore, it was determined that the system could facilitate the operation of the length robot even if the user lacked prior experience with EEG-based systems. © 2023 IEEE.

关键词： Brain computer interface

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Three-Dimensional Dead-Reckoning Using Lie Theory 24

Three-Dimensional Dead-Reckoning Using Lie Theory

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24th International Conference on Control, Automation and Systems, ICCAS 2024

作者： Jeong, Da Bin Yong Ko, Nak Chosun University Interdisciplinary Program in IT-Bio Convergence System Graduate School Department of Electronic Engineering Gwangju61452 Korea Republic of Chosun University Interdisciplinary Program in IT-Bio Convergence System Department of Electronic Engineering Gwangju61452 Korea Republic of

ISBN: (纸本)9788993215380

This paper proposes a Dead-reckoning (DR) method for vehicles using Lie theory. This approach treats the pose (position and attitude) and velocity of the vehicle as elements of the Lie group SE2(3) and follows computations based on Lie theory. Previously widely used DR methods suffer from cumulative errors over time due to inaccuracies in the calculated changes from velocity during the motion of the vehicle or small errors in modeling assumptions. By treating the pose and velocity of the vehicle as elements of the Lie group, the proposed method allows for accurate solutions without errors introduced by linearization. Experimental results confirm that the proposed method improves the accuracy of DR, particularly as the motion prediction time interval of the vehicle increases. © 2024 ICROS.

关键词： Exponential functions

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Service-Based Optimal Group Resource Allocation Strategy 14

Service-Based Optimal Group Resource Allocation Strategy

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14th International Conference on Ubiquitous and Future Networks, ICUFN 2023

作者： Cha, Chaeyeon Park, Hyunggon Ewha Womans University Graduate Program in Smart Factory Dept. Electronic and Electrical Engineering Seoul Korea Republic of

ISBN: (纸本)9798350335385

With the increasing development of the Internet of Things (IoT), there is a growing need for efficient resource allocation to the many devices in the IoT system. This need is particularly acute in the case of time-sensitive applications, where fast resource allocation is essential. However, the resource allocation based on the Nash bargaining solution (NBS) necessitates exponentially increasing computational complexity for user dynamic systems. We propose an approach that makes groups based on the requested services and predicts a disagreement point whenever the group size changes, with the aim of reducing the computational complexity to find the NBS. Through simulation results, we demonstrate that our proposed approach outperforms the existing method in terms of execution time to find the NBS, maintaining the optimality in finding NBS. © 2023 IEEE.

关键词： Internet of things

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Low-complexity Anomaly Detection Method based on Feature Importance using Shapley Value 14

Low-complexity Anomaly Detection Method based on Feature Imp...

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14th International Conference on Ubiquitous and Future Networks, ICUFN 2023

作者： Rheey, Joohong Park, Hyunggon Ewha Womans University Graduate Program in Smart Factory Dept. Electronic and Electrical Engineering Seoul Korea Republic of

ISBN: (纸本)9798350335385

The increasing popularity of Internet of Things (IoT) devices has brought significant security challenges to IoT networks. However, most deep learning-based anomaly detection solutions often require high computation performance so that it is difficult to be implanted on low-end IoT devices with limited power and memory capacity. In this paper, we propose a low-complexity network anomaly detection method based on feature selection using the Shapley value for the Isolation Forest algorithm. The proposed feature selection method using the Shapley value can reduce the dimension of input data, thereby improving the performance with reduced computational complexity. We provide simulation results to demonstrate the effectiveness of the proposed method. The results show that the proposed method based on Isolation Forest achieves comparable performance to the deep learning method based on neural networks while using fewer dimensions than the deep learning method. © 2023 IEEE.

关键词： Anomaly detection

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Overview of Versatile Video Coding (H.266/VVC) and Its Coding Performance Analysis

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IEIE Transactions on Smart Processing and Computing 2023年第2期12卷 122-154页

作者： Lee, Minhun Song, HyeonJu Park, Jeeyoon Jeon, Byeungwoo Kang, Jungwon Kim, Jae-Gon Lee, Yung-Lyul Kang, Je-Won Sim, Donggyu Department of Computer Engineering Kwangwoon University Seoul Korea Republic of Department of Computer Engineering Sejong University Seoul Korea Republic of Department of Electrical and Computer Engineering Sungkyunkwan University Kyunggi-do Korea Republic of Communication and Media Research Laboratory Electronics and Telecommunications Research Institute Deajeon Korea Republic of School of Electronics and Information Engineering Korea Aerospace University Kyunggi-do Korea Republic of Department of Electronic and Electrical Engineering Graduate Program in Smart Factory Ewha Womans University Seoul Korea Republic of

Versatile Video Coding (H.266/VVC) is the newest video coding standard jointly developed by the Joint Video Experts Team (JVET), which is organized by the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG). H.266/VVC provides about 40% bitrate reduction compared with High Efficiency Video Coding (H.265/HEVC) for the same visual quality. This paper introduces in detail the core structure of H.266/VVC by highlighting its features within block partitioning structure, intra/inter prediction, transform, quantization, and in-loop filtering, compared to its predecessor (H.265/HEVC). H.266/VVC yields significantly improved the coding performance, but it increased the computational complexity, particularly for the encoder side, which remains a problem to be tackled for successful commercialization in the future. This paper examined the statistical performance of H.266/VVC coding tools from the bitstreams encoded by the VVC test model (VTM12.0) encoder through rate-distortion optimization under the JVET common test conditions. In addition, the complexity and performance analyses are conducted on the block partitioning structure and group of picture structure. It is expected that an optimized H.266/VVC encoder can be designed and developed by minimizing the coding loss based on the analysis data. © 2023 Institute of electronics and Information Engineers. All rights reserved.

关键词： Image compression

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Verification of the Inactivation Effect of Near-UV LEDs using a Pulsed Lighting System on Staphylococcus aureus

Verification of the Inactivation Effect of Near-UV LEDs usin...

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2024 IEEE Sustainable Smart Lighting World Conference and Expo, LS24 2024

作者： Nomura, Hiroki Kihara, Seiji Zukeran, Akinori Sawai, Jun Misu, Takayuki Kanagawa Institute of Technology Graduate School of Engineering Master's Degree Program in Electrical and Electronic Engineering Atsugi Kanagawa243-0292 Japan Kanagawa Institute of Technology Faculty of Engineering Department of Electrical and Electronic Engineering Atsugi Kanagawa243-0292 Japan Kanagawa Institute of Technology Faculty of Health and Medical Sciences Department of Nutrition and Life Science Atsugi Kanagawa243-0292 Japan

ISBN: (纸本)9798331540197

The purpose of this study is to investigate the disinfection effect of Near-UV LED light, which is pulsed using PWM control, on Staphylococcus aureus. To evaluate the disinfection effect of Near-UV LED light, three types of Near-UV LEDs with wavelengths of 395 nm, 385 nm, and 365 nm were installed within a sealed space inside an incubator and energized with a forward current of 1000 mA and a forward voltage of 3.6 V, and the disinfection rate under each type of light was assessed. Additionally, the disinfection effect was evaluated when the same three types of Near-UV LEDs were pulsed with a 50% duty cycle. As a result, 100% disinfection was achieved with 365 nm Near-UV LED direct-current irradiation for 120 seconds, and a 93% disinfection rate was obtained with pulsed irradiation for 150 seconds. © 2024 IEEE.

关键词： Light emitting diodes

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Adhesion Sensing in an Electroadhesive Paper Handler and Its Application to Physical RPA

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on electronics, Information and Systems 2023年第1期143卷 47-56页

作者： Okamoto, Takuya Itoh, Hideaki Fukumoto, Hisao Wakuya, Hiroshi Electrical and Electronic Engineering Course Graduate School of Science and Engineering Saga University 1 Honjyo Saga840-8502 Japan Department of Electrical and Electronic Engineering Faculty of Science and Engineering Saga University 1 Honjyo Saga840-8502 Japan Integrated Center for Educational Research and Development Faculty of Education Saga University 1 Honjyo Saga840-8502 Japan

Recently, robotic process automation (RPA) has been widely used to automate various office tasks, but most RPA systems automate only the tasks performed on computers. To extend RPA systems to automation of physical tasks, we have been developing an electroadhesive paper handler that adheres to a sheet of paper with electrostatic attraction force caused by an application of a high voltage. Although our handler enables robots to easily handle paper, it sometimes fails to adhere to paper if the voltage application time is short. To address this issue, in this study, we propose a sensing mechanism that can detect whether the handler is adhering to the target. The sensing mechanism requires only a simple circuit and a single voltage measurement. Through experiments, we show that the sensing is possible at various humidity and temperatures and in various paper conditions. Also, we study the measured voltage's dependence on a resistance of the measurement circuit and the voltage's transient responses, and provide an equivalent circuit that explains them. Moreover, using an example robot system that automatically extracts specified documents from a given pile of documents, we show that the proposed sensing mechanism speeds up paper handling by making adhesion failures recoverable. © 2023 The Institute of electrical Engineers of Japan.

关键词： Paper

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Balancing Dual DC Voltage Control in Quasi Single-Stage Converter for Low-Voltage Energy Storage System Grid-Connected 20

Balancing Dual DC Voltage Control in Quasi Single-Stage Conv...

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20th International Conference on electrical engineering/electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2023

作者： Manokum, Warissara Kumsuwan, Yuttana Faculty of Engineering Chiang Mai University Graduate Program in Electrical Engineering Department of Electrical Engineering Chiang Mai Thailand Provincial Electricity Authority Bangkok Thailand Chiang Mai University Faculty of Engineering Department of Electrical Engineering Chiang Mai Thailand

ISBN: (纸本)9798350310467

The aim of a bidirectional quasi single-stage converter (QSSC) for low-voltage energy storage systems that are grid-connected is to reduce the power conversion stage of the dc-dc converter, which results in improved overall efficiency. The QSSC configuration relies on a modified modulation strategy due to the unequal dual dc port (upper and lower dc ports) voltage. The control for ensuring that the dual dc port voltages are equal is presented in this paper. When the lower dc port is varied in response to battery voltage, another is controlled to track in response to the lower dc port, so that the voltage ratio between the upper and lower dc port is always equal to one. Furthermore, power sharing in a dual dc port is equal, which means that a dc-dc converter automatically operates at 50% of the battery power. Thus, the existing modulation can be used and the power stage conversion of the dc-dc converter can be decreased. The proposed control for the QSSC is verified with simulation results. © 2023 IEEE.

关键词： Energy storage

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A Multifunctional Hydrogel with Multimodal Self-Powered Sensing Capability and Stable Direct Current Output for Outdoor Plant Monitoring Systems

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Nano-Micro Letters 2025年第4期17卷 1-24页

作者： Xinge Guo Luwei Wang Zhenyang Jin Chengkuo Lee Department of Electrical&Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117576Singapore Center for Intelligent Sensors and MEMS(CISM) National University of Singapore5 Engineering Drive 1Singapore 117608Singapore NUS Graduate School-Integrative Sciences and Engineering Program(ISEP) National University of SingaporeSingapore 119077Singapore Research Center for Sustainable Urban Farming(SUrF) National University of SingaporeSingapore 117558Singapore

Smart farming with outdoor monitoring systems is critical to address food shortages and sustainability *** systems facilitate informed decisions that enhance efficiency in broader environmental *** outdoor systems equipped with energy harvesters and self-powered sensors often struggle with fluctuating energy sources,low durability under harsh conditions,non-transparent or non-biocompatible materials,and complex ***,a multifunctional hydrogel is developed,which can fulfill all the above requirements and build selfsustainable outdoor monitoring systems solely by *** can serve as a stable energy harvester that continuously generates direct current output with an average power density of 1.9 W m^(-3)for nearly 60 days of operation in normal environments(24℃,60%RH),with an energy density of around 1.36×10^(7)J m^(-3).It also shows good self-recoverability in severe environments(45℃,30%RH)in nearly 40 days of continuous ***,this hydrogel enables noninvasive and self-powered monitoring of leaf relative water content,providing critical data on evaluating plant health,previously obtainable only through invasive or high-power consumption *** potential extends to acting as other self-powered environmental *** multifunctional hydrogel enables self-sustainable outdoor systems with scalable and low-cost production,paving the way for future agriculture.

关键词： Self-powered sensor Hydrogel Energy harvester Outdoor farming Self-sustainable IoT

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