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13th IEEE Global Conference on Consumer Electronic, GCCE 2024

作者： Mori, Kai Shibasato, Koki Kumamoto College Electronics and Information Systems Engineering Course 2659-2 Suya Kumamoto Koshi Japan Kumamoto College Department of Control and Information Systems Engineering 2659-2 Suya Kumamoto Koshi Japan

ISBN: (纸本)9798350355079

In general, people with severe physical challenges have difficulty getting into an electric wheelchair. Therefore, an "alter ego robot"is proposed in order to realize telepresence of the challenged person. In this research, a system that uses an electric wheelchair as basic research for the cart platform of the alter ego robot is developed and enables an operator to teleoperate the robot by using gaze input even when the operator is in a supine position. In the proposed system, there are extended display and an eye tracker in the operator side. Accordingly, a new interface is devised so that the operator can use the system naturally with gaze input. This system aims to improve the quality of life of physically challenged persons. © 2024 IEEE.

关键词： Wheelchairs

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Feature Extraction of Gait Data via PCA and Personal Identification Using Neural Networks 9

Feature Extraction of Gait Data via PCA and Personal Identif...

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9th International Conference on Big Data Analytics, ICBDA 2024

作者： Nishimura, Kazuki Ishida, Akio Murakami, Jun Yamamoto, Naoki National Institute of Technology Kumamoto College Advanced Course of Electronics and Information Systems Engineering Kumamoto Japan National Institute of Technology Kumamoto College Faculty of Liberal Arts Kumamoto Japan National Institute of Technology Kumamoto College Faculty of Electronics and Information Systems Engineering Kumamoto Japan

ISBN: (纸本)9798350352962

Gait analysis is used in a wide range of fields, including clinical applications such as diagnosis and rehabilitation, investigation of gender and racial differences, and personal identification, which is important in forensic investigations and security. In recent years, gait data can be obtained from force plates, 3D motion capture, RGB cameras, and so on. In this study, we applied principal component analysis (PCA) to gait data captured with an RGB camera and analyzed the main data characteristics. However, the data used here is joint information whose posture is estimated using neural networks (NN) from gait videos taken with the camera. Furthermore, we created a NN model for personal identification using data whose dimensionality was reduced using PCA and attempted the identification. © 2024 IEEE.

关键词： Phishing

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Analysis of the performance of robotic assembly systems considering the usage of tools or jigs for the task-board task in the WRS 2018

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Advanced Robotics 2023年第20期37卷 1329-1346页

作者： Dobashi, Hiroki Ogawa, Koki Shibata, Mizuho Uemura, Wataru Yokokohji, Yasuyoshi Faculty of Systems Engineering Wakayama University Wakayama Japan Graduate School of Systems Engineering Wakayama University Wakayama Japan Department of Robotics Faculty of Engineering Kindai University Higashi-Hiroshima Japan Electronics Information and Communication Engineering Course Faculty of Advanced Science and Technology Ryukoku University Otsu Japan Department of Mechanical Engineering Graduate School of Engineering Kobe University Kobe Japan

A task-board task is a task in which robots perform a set of fundamental assembly operations related to the assembly of a specific product such as inserting a part into another part, tightening bolts and nuts, attaching flexible parts, etc. In the task-board task competition in the industrial robotics category of the World Robot Summit (WRS) 2018, 15 teams from around the world performed the task. In our previous work, we observed recorded videos of the competition frame by frame and manually investigated the performance of robotic systems of the top four teams, focusing only on whether robots contact target parts. In this paper, we introduce frame sets to represent mainly contact states between robots, tools, or jigs and target parts to be handled for such a frame-by-frame analysis of the recorded videos, and based on the frame sets, we analyze the performance of robotic assembly systems of other teams as well as the top four teams in the task-board task competition in the WRS 2018, considering the usage of tools or jigs. © 2023 Informa UK Limited, trading as Taylor & Francis Group and The Robotics Society of Japan.

关键词： Robotic assembly

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Research on Metamaterial Technology for Microwave Wireless Power Transfer

Research on Metamaterial Technology for Microwave Wireless P...

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2024 International Symposium on Antennas and Propagation, ISAP 2024

作者： Yamamoto, Tsunayuki Kobashi, Takeo Maruyama, Tamami Department of Integrated Science and Technology National Institute of Technology Tsuyama College Tsuyama-shi Japan Advanced Electronics and Information System Engineering Course National Institute of Technology Tsuyama College Tsuyama-shi Japan Department of Production Systems Engineering Institute of Technology Hakodate College Hakodate-shi Japan

ISBN: (纸本)9798350364774

In this paper, two technologies of metamaterial for microwave wireless power transfer are shown. One is a zeroth-order resonance for a microwave snow melting system, and another one is a focusing reflector for realizing of a highly efficient wireless power transfer space. A zeroth-order resonance leads a uniformed microwave heating and a flexibility of feeding in a snow melting system. Focusing reflector can make some electromagnetic hot and null points in a space. These are expected to be required technologies for highly efficient wireless power transfer. © 2024 IEEE.

关键词： Reflection

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Remote Control of Cart Platform for Alter Ego Robot by Gaze Input

Remote Control of Cart Platform for Alter Ego Robot by Gaze ...

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IEEE Global Conference on Consumer electronics (GCCE)

作者： Kai Mori Koki Shibasato Electronics and Information Systems Engineering Course National Institute of Technology (KOSEN) Kumamoto College Kumamoto Japan Department of Control and Information Systems Engineering National Institute of Technology (KOSEN) Kumamoto College Kumamoto Japan

ISBN: (数字)9798350355079

ISBN: (纸本)9798350355086

In general, people with severe physical challenges have difficulty getting into an electric wheelchair. Therefore, an "alter ego robot" is proposed in order to realize telepresence of the challenged person. In this research, a system that uses an electric wheelchair as basic research for the cart platform of the alter ego robot is developed and enables an operator to teleoperate the robot by using gaze input even when the operator is in a supine position. In the proposed system, there are extended display and an eye tracker in the operator side. Accordingly, a new interface is devised so that the operator can use the system naturally with gaze input. This system aims to improve the quality of life of physically challenged persons.

关键词： Telepresence Wheelchairs User interfaces Mobile robots Remote control Consumer electronics

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Feature Extraction of Gait Data via PCA and Personal Identification Using Neural Networks

Feature Extraction of Gait Data via PCA and Personal Identif...

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IEEE International Conference on Big Data Analysis (ICBDA)

作者： Kazuki Nishimura Akio Ishida Jun Murakami Naoki Yamamoto Advanced Course of Electronics and Information Systems Engineering National Institute of Technology Kumamoto College Kumamoto Japan Faculty of Liberal Arts National Institute of Technology Kumamoto College Kumamoto Japan Faculty of Electronics and Information Systems Engineering National Institute of Technology Kumamoto College Kumamoto Japan

ISBN: (数字)9798350352962

ISBN: (纸本)9798350352979

关键词： Training Estimation Training data Artificial neural networks Cameras Feature extraction Data models

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Measurement of Absorption Current of Polyester Coated Enameled Wires with Q(t) meter

Measurement of Absorption Current of Polyester Coated Enamel...

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2023 International Symposium on Electrical Insulating Materials, ISEIM 2023

作者： Watanabe, Akinao Fukuma, Masumi Sekiguchi, Yoitsu Advanced Electronic and Information Systems Course National Institute of Technology Matsue College Matsue Japan Department of Electrical Engineering and Computer Science National Institute of Technology Matsue College Matsue Japan Energy and Electronics Materials R&D Laboratories Sumitomo Electric Industries Osaka Japan

ISBN: (纸本)9784886864376

A Q(t) meter is used to measure electrical properties in insulating materials. Here, Q(t) is the integral value of circuit current with time t. It is possible to measure the Q(t) of the insulation material of a capacitor and a cable by using Q(t) meter. The current through an insulating material is divided into an instantaneous charging current, an absorption current and an equilibrium leakage current. It is considered that the absorption current is related to charge accumulation in the insulating materials. In this paper, an enameled wire (1.6 PEW) is used to prepare a cable sample, the Q(t) of the coated polyester (PEs) is measured, and extraction of absorption current components from measured Q(t) are reported. © 2023 The Institute of Electrical Engineers of Japan.

关键词： Insulating materials

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Research on Metamaterial Technology for Microwave Wireless Power Transfer

Research on Metamaterial Technology for Microwave Wireless P...

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International Symposium on Antennas and Propagation (ISAP)

作者： Tsunayuki Yamamoto Takeo Kobashi Tamami Maruyama Department of Integrated Science and Technology National Institute of Technology Tsuyama College Tsuyama-shi Japan Advanced Electronics and Information System Engineering Course National Institute of Technology Tsuyama College Tsuyama-shi Japan Department of Production Systems Engineering Institute of Technology Hakodate College Hakodate-shi Japan

ISBN: (数字)9798350364774

ISBN: (纸本)9798350364781

关键词： Microwave antennas Microwave technology Electromagnetic heating Snow Focusing Wireless power transfer Resonance Metamaterials Electromagnetics Microwave propagation

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Measurement of Absorption Current of Polyester Coated Enameled Wires with Q(t) Meter

Measurement of Absorption Current of Polyester Coated Enamel...

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International Symposium on Electrical Insulating Materials

作者： Akinao Watanabe Masumi Fukuma Yoitsu Sekiguchi Advanced Electronic and Information Systems Course National Institute of Technology Matsue College Matsue Japan Department of Electrical Engineering and Computer Science National Institute of Technology Matsue College Matsue Japan Energy and Electronics Materials R&D Laboratories Sumitomo Electric Industries Osaka Japan

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A Consideration on Neutral-Point Potential Balancing of 3-Level PWM Rectifier Applying Space Vector Modulation of Matrix Converter

A Consideration on Neutral-Point Potential Balancing of 3-Le...

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International Conference on Electrical Machines and systems (ICEMS)

作者： Junnosuke Haruna Masato Wakabayashi Masaki Yoshihara Hirohito Funato Information Electronics and Optics Course School of Engineering Utsunomiya University Utsunomiya Japan Division of Engineering and Agriculture Graduate Program in Information Electrical & Electronic Systems Engineering Graduate School of Regional Development and Creativity Utsunomiya University Utsunomiya Japan

This paper proposes voltage balance control for 3-level PWM rectifier using a space vector modulation of a matrix converter. When space vector modulation of matrix converter is applied to 3-level PWM rectifier, it can keep balanced DC-link voltage of 3-level PWM rectifier. However, when the DC-link voltage unbalance occurs, SVM of matrix converter cannot balance the DC-link voltage. In this paper, phase angle of input current reference is generated by PI controller in order to keep the phase angle of DC-link voltage to $\pi /6$ rad. The proposed control can adapt not only voltage unbalance, but also a load unbalance. The validity of the proposed control is demonstrated by the simulation results.

关键词： Support vector machines Electric potential PI control Simulation Capacitors Rectifiers Pulse width modulation

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