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2024 China Automation Congress, CAC 2024

作者： Wang, Qiyi Bai, Yang Peng, Li Engineering Research Center of Internet of Things Technology Applications Ministry of Education Jiangnan University Wuxi214122 China Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima739-8525 Japan

ISBN: (纸本)9798350368604

This paper explores dynamic event-triggered filtering for a class of semi-Markov jump systems with time-varying delays. Utilizing the semi-Markov kernel, we analyze these systems and design a dynamic event-triggering mechanism to alleviate communication pressure. A Lyapunov function is constructed with a guaranteed negative trigger threshold. After a period of dwell time, the system undergoes mode transitions. By ensuring that the Lyapunov function decays during this process, we derive a set of sufficient conditions for the existence of the filter under the dynamic event-triggering mechanism. Finally, a numerical example is provided to verify the effectiveness of the proposed method. © 2024 IEEE.

关键词： Lyapunov functions

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An Intelligent Deterministic Scheduling Method for Ultralow Latency Communication in Edge Enabled Industrial Internet of Things

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IEEE Transactions on Industrial Informatics 2023年第2期19卷 1756-1767页

作者： Lu, Yinzhi Yang, Liu Yang, Simon X. Hua, Qiaozhi Sangaiah, Arun Kumar Guo, Tan Yu, Keping School of Communication and Information Engineering Chongqing University of Posts and Telecommunications Chongqing400065 China Advanced Robotics and Intelligent Systems Laboratory School of Engineering University of Guelph GuelphONN1G2W1 Canada Computer School Hubei University of Arts and Science Xiangyang441000 China Future Technology Research Center National Yunlin University of Science and Technology Douliu City64002 Taiwan Graduate School of Science and Engineering Hosei University Tokyo184-8584 Japan Riken Center for Advanced Intelligence Project Riken Tokyo103-0027 Japan

Edge enabled Industrial Internet of Things (IIoT) platform is of great significance to accelerate the development of smart industry. However, with the dramatic increase in real-time IIoT applications, it is a great challenge to support fast response time, low latency, and efficient bandwidth utilization. To address this issue, time sensitive network (TSN) is recently researched to realize low latency communication via deterministic scheduling. To the best of our knowledge, the combinability of multiple flows, which can significantly affect the scheduling performance, has never been systematically analyzed before. In this article, we first analyze the combinability problem. Then, a noncollision theory based deterministic scheduling (NDS) method is proposed to achieve ultralow latency communication for the time-sensitive flows. Moreover, to improve bandwidth utilization, a dynamic queue scheduling (DQS) method is presented for the best-effort flows. Experiment results demonstrate that NDS/DQS can well support deterministic ultralow latency services and guarantee efficient bandwidth utilization. © 2005-2012 IEEE.

关键词： Bandwidth

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Thermal control of thin films with nano structure 9

Thermal control of thin films with nano structure

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9th European Thermal sciences Conference, EUROTHERM 2024

作者： Sato, M. Takahara, Y. Matsumoto, M. Kajinami, N. Hanaoka, M. Iwakawa, M. Department of Mechanical Engineering and Science Graduate School of Engineering Kyoto University Kyoto615-8540 Japan Advanced Technology R&D Center Mitsubishi Electric Corporation Hyogo661-8661 Japan

Thermoelectric energy conversions have been attracting much attention, which directly generate electric energy from thermal one by utilizing the Seebeck effect. Among various efforts to improve the conversion efficiency, control of phonon propagation with nano-scale structures has been popular, which utilize phonon scatterings on structural interfaces. The concept is based on the difference of mean free path (MFP) between phonons and electrons (charge carriers). In typical cases with silicon-base devices, MFP of phonons is in an order of 100 nm while that of electrons is 1-10 nm. Thus structures of 10-100 nm size are expected to be effective for suppressing the phonon heat transfer without much reducing the electric transport, leading to conversion efficiency improvement. We have developed a numerical scheme to investigate phonon transport based on the Boltzmann transport equation (BTE) for time development of the phonon distribution function. To treat various shapes of nano-scale structures, we have newly introduced a VOF (volume of fluid) like scheme. In the presentation, we will show results of several test systems of nano-structured Si thin films, with evaluation of effective electric conductivity, to discuss how much nano-scale structures improve the conversion efficiency. © Published under licence by IOP Publishing Ltd.

关键词： Conversion efficiency

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Magnetism Measurements of Two-Dimensional van der Waals Antiferromagnet CrPS_(4)Using Dynamic Cantilever Magnetometry

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Chinese Physics Letters 2024年第10期41卷 123-128页

作者： Qi Li Weili Zhen Ning Wang Meng Shi Yang Yu Senyang Pan Lin Deng Jiaqiang Cai Kang Wang Lvkuan Zou Zhongming Zeng Zhaosheng Wang Jinglei Zhang Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field LaboratoryHFIPSChinese Academy of SciencesHefei 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefei 230026China School of Advanced Manufacturing Engineering Hefei UniversityHefei 230601China Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of SciencesSuzhou 215123China

Recent experimental and theoretical work has focused on two-dimensional van der Waals(2D vdW)magnets due to their potential applications in sensing and spintronics *** measurements of these emerging materials,conventional magnetometry often encounters challenges in characterizing the magnetic properties of small-sized vdW materials,especially for antiferromagnets with nearly compensated magnetic ***,we investigate the magnetism of 2D antiferromagnet CrPS_(4)with a thickness of 8nm by using dynamic cantilever magnetometry(DCM).

关键词： magnets Magnet

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Path Planning Method for Mobile Robots in Pedestrian-Friendly Environments Using Drone Bird's-Eye View

Path Planning Method for Mobile Robots in Pedestrian-Friendl...

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2025 IEEE/SICE International Symposium on System Integration, SII 2025

作者： Ye, Linghao Chugo, Daisuke Muramatsu, Satoshi Yokota, Sho Hashimoto, Hiroshi Kwansei Gakuin University Graduate School of Science and Technology Hyogo Sanda6691330 Japan Tokai University School of Information Science and Technology Kanagawa Hiratsuka2591292 Japan Toyo University Faculty of Science and Engineering Saitama Kawagoe3508585 Japan Advanced Institute of Industrial Technology Master Program of Innovation for Design and Engineering Shinagawa Tokyo1400011 Japan

ISBN: (纸本)9798331531614

The objective of this paper is to develop a robot system that can transmit the video taken by the drone to the computer in real time, use YOLO to recognize the image of pedestrians, and enable the ground robot to plan the path to avoid pedestrians. External sensors, such as laser range finders (LRF) and CCD cameras, are often used on mobile robots. As we all know, these sensors are susceptible to occlusion. Therefore, even if the mobile robot avoids the pedestrian in front of it, it is likely to collide with other pedestrians that cannot be detected due to occlusion. In this study, we used a drone to shoot videos at high altitudes, transferred the videos to a computer, used YOLO on the computer to perform image recognition of pedestrians around the robot, and passed the recognition results to ROS, which enabled it to plan a path to avoid pedestrians around it. As a result, showed that the videos shot at high altitudes could effectively identify pedestrians around the robot after being recognized by YOLO. © 2025 IEEE.

关键词： Drones

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Visual Instruction Tuning for Holistic and Regional Remote Sensing Imagery Comprehension 2

Visual Instruction Tuning for Holistic and Regional Remote S...

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2nd IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024

作者： Zhang, Wei Cai, Miaoxin Zhang, Tong Yin, Zhuang Mao, Xuerui National Key Laboratory of Science and Technology on Space-Born Intelligent Information Processing China Advanced Research Institute of Multidisciplinary Sciences China School of Mechatronical Engineering Yangtze Delta Region Academy of Beijing Institute of Technology Beijing Institute of Technology Beijing China

ISBN: (纸本)9798331515669

Recently, the visual instruction multimodal large language models (MLLMs) have been extensively studied in the nature scenario. However, current remote sensing (RS) MLLMs mainly focus on image-level understanding and typically allow interaction only through text instructions, resulting in limited accuracy and efficiency. To address those limitations, a visual instruction model is proposed in this article to extend MLLM's fine-grained perception ability by incorporating bounding boxes with language instruction, aiming at achieving region-level visual understanding. To achieve this goal, a visual instruction dataset featuring multi-modal box-based region-text pairs is constructed. Furthermore, the visual instructions and images are encoded by the different encoders and subsequently fed into a large language model (LLM) along with text instruction tokens for tuning. Finally, experimental results demonstrate the proposed model's promising performance in region-level image comprehension. © 2024 IEEE.

关键词： Adversarial machine learning

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Laser assisted phase transformation of carbon-based transition metal oxide electrode for high-performance supercapacitor application

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science China Chemistry 2025年

作者： Mingzhen Xiu Jianghong Zhang Yu Lu Xun Cao Kang Huang Siyu Zhu Bowei Zhang Yu Liang Chunwang Zhao Junsheng Wu Yizhong Huang School of Materials Science and Engineering Nanyang Technological University Energy Research Institute Interdisciplinary Graduate Programme Nanyang Technological University Institute of Sustainability for Chemicals Energy and Environment Agency for Science Technology and ResearchSingapore Institute of Advanced Materials and Technology University of Science and Technology Beijing School of Materials Science and Technology Shenyang University of Chemical Technology School of Materials Science and Hydrogen Energy Foshan University

Transitional metal oxides have a wide range of applications due to their superior *** enhanced performance of metal oxide relies on their desirable oxidation states,which is challenging to achieve and requires complex *** study demonstrates a facile strategy enabling rapid phase transformation of transition metal *** approach involves synthesis of a tetragonal Mn3O4/carbon cloth composite using the liquid plasma discharge deposition （LPDD） technique,followed by laser irradiation with the presence of ethylene glycol under an N2gas *** resulting face-centered cubic MnO/carbon cloth electrode exhibits an excellent capacitance of 1,125 F g-1at 2 A g-1,with remarkable capacitance retention of 95%after10,000 *** approach can be extended to other transition metals including Co,Cu,Cr,Fe,Ni,and *** simulations reveal the significance of ethylene glycol and the underlying mechanism associated with the phase transformation of transition metal *** present study offers a powerful technique for the phase transformation of transition metal oxide which can guide the development of new electrode materials with enhanced electrochemical properties for high-performance energy storage applications.

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Motion Analysis of Simple Walking Models Driven by Minimalistic Periodic Input 8

Motion Analysis of Simple Walking Models Driven by Minimalis...

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8th IEEE International Conference on advanced Robotics and Mechatronics, ICARM 2023

作者： Yan, Cong Asano, Fumihiko Ritsumeikan University Department of Mechanical Engineering 1-1-1 Nojihigashi Kusatsu Shiga525-8577 Japan Graduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa923-1292 Japan

ISBN: (纸本)9798350300178

In dynamic bipedal walking, it is generally expected that simple and efficient control methods can generate stable limit cycle gaits. Therefore, we assume that well-designed periodic inputs can achieve excellent walking performance while maintaining stability without relying on feedback. This study compares two typical bipedal walker models, namely the rimless wheel(RW) and the biped, to validate this assumption. The results demonstrate that both models can successfully generate a stable limit cycle gait. By fine-tuning the control parameters, we confirmed that the bipedal model with swing legs exhibited a higher susceptibility to entrainment compared to the RW model. Our work demonstrates the existence of time-symmetric input reaching spatially asymmetric results in walking robots, which has important implications for understanding symmetry breaking in nature and the behavior of complex systems. © 2023 IEEE.

关键词： Motion analysis

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Motion Analysis of Passive-Dynamic Walker with Flexible Structure: Exploration for Novel Support Phase 8

Motion Analysis of Passive-Dynamic Walker with Flexible Stru...

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8th IEEE International Conference on advanced Robotics and Mechatronics, ICARM 2023

作者： Xiang, Yuxuan Zheng, Yanqiu Yan, Cong Asano, Fumihiko Graduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa923-1292 Japan Ritsumeikan University Department of Mechanical Engineering 1-1-1 Nojihigashi Shiga Kusatsu525-8577 Japan

ISBN: (纸本)9798350300178

In the robotics, various walking models have been proposed to study the mechanisms of walking, and for better investigations, the walking model is excepted that can capture the most essence of walking problem with minimal complexity. According, propose a model that describe and explain the walking mechanism of creatures is our research target. In this study, we proposed a passive-dynamic walker which has flexible structure, and analyzed the walking performance by numerical simulation. The simulation result shows the influence of vibration on walking performance, and the flexible rimless wheel (FRW) can generate not only double-limb support phase, but also triple-limb support phase. Our work not only identified new gait patterns, but has also provided a theoretical basis for the mechanical design of locomotion. © 2023 IEEE.

关键词： Flexible structures

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Low-speed Limit Cycle Walking of Planar X-shaped Bipedal Robot with Special Properties 8

Low-speed Limit Cycle Walking of Planar X-shaped Bipedal Rob...

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8th IEEE International Conference on advanced Robotics and Mechatronics, ICARM 2023

作者： Asano, Fumihiko Yan, Cong Graduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa923-1292 Japan Ritsumeikan University Department of Mechanical Engineering 1-1-1 Nojihigashi Shiga Kusatsu525-8577 Japan

ISBN: (纸本)9798350300178

This paper proposes a novel planar semicircular-footed X-shaped bipedal robot in which the center of mass of each leg link is at the same position as the hip joint, and discusses a method for generating a stable limit cycle gait on level ground. First, we outline the assumptions of the robot model with four degrees of freedom, and develop the mathematical equations of motion and collision. Second, we set the relative hip-joint angle as a control output and design a control system to follow it to the desired trajectory specified as a fifth-order function of time. Third, we mathematically show that there are special properties: the angular velocity of the swing leg does not change before and after the collision, and the time-integral of the control input becomes zero in a steady gait. We also mathematically show that the model has the feature that approximate linearization is effective and the antigravity effect of semicircular feet can be utilized. Through numerical simulations, we verify the validity of the theoretical results, and analyze some fundamental gait properties such as convergence speed and mechanical energy restoration. © 2023 IEEE.

关键词： Degrees of freedom (mechanics)

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