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32nd IEEE International Symposium on Industrial Electronics, ISIE 2023

作者： Huang, Zekang Luo, Yixiao Mi, Wenyuan Cai, Zheng Zhao, Fei Zhao, Hang Yu, Jincheng School of Mechanical Engineering and Automation Shenzhen China Huazhong University of Science and Technology School of Electrical and Electronic Engineering Wuhan China Robotics and Autonomous Systems Thrust Guangzhou China

ISBN: (纸本)9798350399714

This paper presents the design considerations of outer-rotor flux-modulated permanent-magnet (OR-FMPM) in-wheel motors applied to light electric vehicles (EVs). The basic wheel model and drive system specifications are considered in the motor design, with utility of the flat-wire armature windings. The multi-step motor optimization focusing on the outer-rotor PM machines is carried out to reach the design objectives of the drive system, with auxiliary of the sensitivity analysis to lower the computing burden. Finally, the motor electromagnetic performances are specifically analyzed, verifying the feasibility of the motor design in the application of in-wheel motors. © 2023 IEEE.

关键词： Multiobjective optimization

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UAV Wheat Rust Detection based on FasterNet-YOLOv8

UAV Wheat Rust Detection based on FasterNet-YOLOv8

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2023 IEEE International Conference on robotics and Biomimetics, ROBIO 2023

作者： Liu, Huaiyu Zhang, Yueyuan Liu, Shuguang Zhao, Mengyang Sun, Lining Soochow University School of Mechanical and Electrical Engineering Department of Automation Engineering Suzhou215137 China Soochow University Robotics and Microsystems Center School of Mechanical and Electrical Engineering Suzhou215137 China

ISBN: (纸本)9798350325706

This paper introduces a UAV-based wheat rust detection system employing deep learning techniques. To address the limitations of traditional wheat rust disease detection methods, such as time and labor-intensive processes, lack of real-time monitoring, and excessive pesticide usage, In this paper, the YOLOv8 algorithm, representing the forefront of object detection methods is chosen for UAV wheat rust detection. We train the model on a prepared dataset. Subsequently, we evaluated 5 models, including YOLOv5, and YOLOv8, at two different scales (n, s) based on average precision (mAP@.5), precision, recall, and FPS. The experimental outcomes establish the superiority of the enhanced FasterNet-YOLOv8 model over YOLOv8 and YOLOv5 across all metrics, encompassing detection accuracy and processing speed. These findings affirm the viability of our suggested model within the UAV wheat rust monitoring system and underscore the efficacy of the model enhancements. © 2023 IEEE.

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Advanced 5 GHz CPW-Fed Microstrip Antenna with RF MEMS Switches for Enhanced RF Performance 4

Advanced 5 GHz CPW-Fed Microstrip Antenna with RF MEMS Switc...

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4th International Conference on Advancement in Electronics and Communication engineering, AECE 2024

作者： Murali Narayanan, R. Ramkumar, G. Anitha, G. Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Saveetha University Department of Automation and Robotics Engineering Chennai India Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Saveetha University Department of Ece Chennai India

ISBN: (纸本)9798350364729

The coplanar waveguide (CPW) feeding method is used in this work to develop a microstrip antenna with better performance metrics appropriate for present day communication applications. The design incorporates a dual-ground plane arrangement, whereby the substrate is positioned beneath the first ground plane, and the patch dimensions are exactly aligned with the second ground plane, which is positioned above the substrate. 35.011 mm × 22 mm × 1 mm3 are the total antenna dimensions. The radiating patch, which measures 18.03 × 19.18 mm2, is positioned above the second substrate, while the feed line is below the first. A thorough parametric study was carried out, concentrating on a number of crucial dimensions, in order to maximize the antenna's performance. In order to attain the intended results, the design parameters were refined through this iterative approach. With an outstanding impedance match of 49.98 ohms and a remarkable gain value of 5.8 dBi, the completed antenna design provided effective signal transmission and reception. Because it operates in the 5 GHz frequency range, the antenna can be used for a variety of purposes. These comprise wireless networks, industrial automation systems, radar systems, point-to-point communication links, and some medical imaging equipment. A variety of high-frequency applications find the antenna desirable because to its inclusion of the CPW feeding method, which improves the antenna's gain and impedance matching while also streamlining the fabrication process. © 2024 IEEE.

关键词： Coplanar waveguides

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Optimized Design of Frequency-Reconfigurable Microstrip Patch Antenna with RF MEMS Shunt Switches for Enhanced Return Loss Performance at 3.4 GHz

Optimized Design of Frequency-Reconfigurable Microstrip Patc...

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2024 International Conference on Smart Systems for Applications in Electrical Sciences, ICSSES 2024

作者： Murali Narayanan, R. Ramkumar, G. Anitha, G. Saveetha Institute of Medical and Technical Sciences Saveetha University Saveetha School of Engineering Department of Automation and Robotics Engineering Chennai India Saveetha Institute of Medical and Technical Sciences Saveetha University Saveetha School of Engineering Department of ECE Chennai India

ISBN: (纸本)9798350364040

This work offers an optimized design of a reconfigurable microstrip patch antenna coupled with RF MEMS shunt capacitor switches to improve performance at 3.4 GHz. The antenna, with dimensions of 40 × 45 × 1.6 mm, was constructed and simulated using the HFSS (High-Frequency Structural Simulator). By utilizing RF MEMS technology to achieve frequency agility in HFSS, the antenna allows for dynamic reconfiguration of its operating frequency. Comparing the simulation results to prior designs, a significant improvement in return loss of -40 dB and gain of 4.1dBi, as well as enhanced impedance matching and frequency coverage, is observed. These results underscore the potential of the proposed approach for multiband applications in contemporary wireless communication systems. Future optimization and application-specific modifications of the optimized antenna design are highly promising. Subsequent investigations may focus on optimizing design parameters to achieve superior performance measures such as reduced size, radiation efficiency, and bandwidth. Additionally, the antenna's reconfigurable feature enables its use in various applications, including cognitive radio, satellite communications, and Internet of Things (IoT) devices. Exploring these possibilities could drive the evolution of wireless communication technology to meet the changing requirements of diverse applications. © 2024 IEEE.

关键词： Cognitive radio

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Inflatable Metamorphic Origami

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Research 2023年第2期6卷 53-63页

作者： Sen Wang Peng Yan Hailin Huang Ning Zhang Bing Li School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen 518052P.R.China Guangdong Provincial Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics Harbin Institute of TechnologyShenzhen 518052P.R.China State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001P.R.China

This study created a new type of inflatable metamorphic origami that has the advantage of being a highly simplified deployable system capable of realizing multiple sequential motion patterns with a monolithic actuation.

关键词： simplified lata system

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Effect of Layer Thickness on Marginal Gap of Zirconia Crowns Manufactured Using Additive Manufacturing with Top-Down Approach

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Korean Journal of Chemical engineering 2025年第5期42卷 1143-1147页

作者： Lee, Sang-Kyu Park, Chan Jo, Kwang-Ho Choi, Sang-Hyun Lee, Hyein Jang, Kyoung-Jun Yu, Taekyung Department of Chemical Engineering College of Engineering Integrated Engineering Major Kyung Hee University Yongin17140 Korea Republic of Research Institute 3D Controls Co Busan46721 Korea Republic of Department of Prosthodontics School of Dentistry Chonnam National University Gwangju61186 Korea Republic of School of Robotics and Automation Engineering Dongyang Mirae University Seoul08221 Korea Republic of

For efficient 3D printing, fast printing (thick print layers) is necessary;however, in ceramic 3D printing, which involves printing heavy materials, changes in print speed can significantly affect precision. This study compares and analyzes the marginal fit of zirconia crowns produced with different layer thicknesses using a top-down additive manufacturing process. The results for a layer thickness of 50 μm showed lower fit in areas opposite the support compared to the results for layer thicknesses of 10 and 25 μm. It is believed that during very fast printing, the load applied during printing cannot be sustained. These findings can be used as important information for future printing of zirconia prostheses. © The Author(s), under exclusive licence to Korean Institute of Chemical Engineers, Seoul, Korea 2025.

关键词： Ceramic materials

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Enhanced RF Characteristics of Frequency Reconfigurable Microstrip Patch Antenna using Aperture-Coupled Feeding at 5 GHz 4

Enhanced RF Characteristics of Frequency Reconfigurable Micr...

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4th IEEE Asian Conference on Innovation in Technology, ASIANCON 2024

ISBN: (纸本)9798350354218

This work presents a novel antenna design that makes use of the aperture coupled feeding technique. By carefully arranging them in different layers, the antenna patch and feed line maximize performance through efficient energy coupling. The antenna is 40 x 22 x 1.01 mm3 overall. The patch, measuring 17.85 x 16 mm2, is placed on atop the second substrate, and the feed line is positioned underneath the first substrate. To improve the antenna's RF properties and optimize its size, a thorough parametric study was carried out. Important factors, such as the height of the second patch and the breadth and length of the patch and substrates, were the focus of this iterative optimization process. The ultimate design therefore demonstrated its efficacy in directed radiation with a gain value of 5.4 dBi. The antenna is appropriate for point-to-point communication, Wi-Fi systems, radar systems, medical imaging equipment, and industrial automation systems. It runs at a frequency of 5 GHz. The design has the potential for high-performance applications in various sectors because of its enhanced RF performance and adaptability. © 2024 IEEE.

关键词： Slot antennas

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Data-Driven Tracking Control of a Cushion Robot with Safe Autonomous Motion Considering Human-Machine Interaction Environment

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Journal of Dynamic Systems, Measurement and Control 2025年第4期147卷 041003页

作者： Sun, Ping Shan, Rui Chang, Hongbin Wang, Shuoyu School of Artificial Intelligence Shenyang University of Technology Shenyang110870 China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang110169 China Department of Intelligent Mechanical Systems Engineering Kochi University of Technology Kochi7828502 Japan

This study proposes a data-driven safety controller with velocity constraints for a cushion robot. We constructed a mathematical description of the human-machine interaction environment by decomposing the generalized input force and coefficient matrix in the dynamic model. We established a new equivalent data model, which considered various human-machine interaction environments using a pseudo-Jacobian matrix. A stochastic configuration network (SCN) estimation method for variations in the human-machine interaction environment was proposed, with hidden layer nodes added at random. We designed a safe autonomous navigation path and proposed a data-driven control method that limited the actual velocity while stabilizing the tracking error system. In addition, the desired motion velocity of the robot was designed. This approach has the advantage of ensuring safety at a specified velocity. We also demonstrated and validated the effectiveness of the proposed data-driven algorithm using simulation-based comparative analysis and an experimental study. Copyright © 2024 by ASME.

关键词： Stochastic systems

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CANSAT: A Miniature Satellite for Remote Environmental Monitoring 3

CANSAT: A Miniature Satellite for Remote Environmental Monit...

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3rd IEEE North Karnataka Subsection Flagship International Conference, NKCon 2024

作者： Doddamani, Varun R Aditi, S.K. Pujar, Mrutyunjaya Nayak, Abhay J Kotturshettar, B.B. Kle Technological University Deptartment of Automation and Robotics Hubli India Kle Technological University School of Electronics and Communication Hubli India Kle Technological University School of Mechanical Engineering Hubli India

ISBN: (纸本)9798350364569

The CANSAT, a soda can-sized satellite equipped with advanced sensors, represents a significant advancement in remote environmental monitoring technology by developing and deploying a miniature satellite designed to gather real-time environmental data from the lower atmosphere. This research paper explores the possibilities of utilizing lightweight materials and precise sensors to offer a practical alternative to traditional data collection methods, which often involve significant risks and logistical challenges. The CANSAT is deployed from a specific altitude, descending with the aid of a parachute. The findings underscore the feasibility and efficiency of the CANSAT in environmental monitoring, highlighting its contributions to sustainability and technological innovation. © 2024 IEEE.

关键词： Environmental monitoring

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A pixel affinity adaptive expansion weakly supervised skin image segmentation method 3

A pixel affinity adaptive expansion weakly supervised skin i...

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3rd International Conference on Advanced Algorithms and Signal Image Processing, AASIP 2023

作者： Huang, Shan Fan, Huijie Shenyang Ligong University School of Automation and Electrical Engineering Shenyang China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shen Yang China

ISBN: (纸本)9781510668522

Image annotation of medical scenes is expensive, then weak supervision methods have emerged. Therefore, this paper proposes a pixel affinity adaptive expansion model for medical image label generation in skin scenes. The method is divided into two stages. In the first stage, initial pseudo label is generated based on the characteristics of the skin image using the proposed self-Adaptation expansion module. In the second stage, the generated initial pseudo label uses the characteristics of the pixel pair to distinguish the foreground background and class boundaries to generate the final label. Finally, the generated tags are used for fully supervised segmentation. Experiments were conducted on the ISIC 2016 and ISIC 2017 datasets, respectively. The MIoU of the proposed method was 63.24% and 50.43% on the two datasets, while the Dice-score was 76.13% and 67.79%, the accuracy rate was 81.28% and 64.79%, and the recall rate was 73.54% and 71.03%, which is higher than most existing weakly supervised semantic segmentation algorithms, and achieved Sota (State of the arts) on the two skin datasets. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Semantics

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