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检索条件"机构=Sch. of Elec. Engineering and Computer Science"

共 863 条记录，以下是1-10 订阅

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Time-varying group formation tracking for UAV swarm systems with collision avoidance 38

Time-varying group formation tracking for UAV swarm systems ...

引用

38th Youth Academic Annual Conference of Chinese Association of Automation, YAC 2023

作者： Yu, Jintong Hua, Yongzhao Yu, Jianglong Dong, Xiwang Ren, Zhang Beihang University Institute of Artificial Intelligence Beijing China Beihang University Sch. of Automat. Sci. and Elec. Engineering Science and Technology on Aircraft Control Laboratory Beijing China

ISBN: (纸本)9798350303636

Aiming at the tracking and control problem of UAV swarm formation, it has important application value in civil fields such as environmental monitoring, disaster rescue, regional logistics Based on the consensus control theory, this paper proposes an unmanned aerial vehicle (UAV) group formation tracking control method with a collision avoidance mechanism. The designed control approach is verified on the Matlab simulation platform respectively. A physical verification is built by using motion capture as external positioning system, and the physical flight of the Tello UAV swam system is carried out. The results verify the effectiveness of the designed UAV group formation tracking control method with a collision avoidance mechanism. © 2023 IEEE.

关键词： artificial potential field collision avoidance consensus method UAV experiment platform UAV formation tracking

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Optimal Model of Hydrogen Production Coupled Sewage Treatment from Renewable Energy for Hydrogen and Oxygen Utilization 10

Optimal Model of Hydrogen Production Coupled Sewage Treatmen...

引用

10th IEEE International Power elec.ronics and Motion Control Conference, IPEMC 2024 ECCE Asia

作者： Qi, Sihang Hu, Kewei Wang, Zhan Ma, Ruodong Zhang, Yu Xiong, Binyu Wuhan University of Technology School of Automation Wuhan China Huazhong University of Science and Technology State Key Lab. of Adv. Electromagnetic Eng. and Technol. Sch. of Elec. and Electronic Engineering Wuhan China State Grid-Hubei-Electric Power Research Institute Wuhan China

ISBN: (纸本)9798350351330

To avoid the waste of oxygen, a byproduct of hydrogen production from elec.ricity, this article proposes a new utilization scenario that combines renewable energy hydrogen production with sewage treatment, and supplies pure oxygen from hydrogen production to the aerobic aeration tank for sewage treatment. This scenario involves combining pure oxygen with air, achieving the optimal pure oxygen ratio through adjustment, and then being aerated by an aerator into an aerobic bioreactor. While achieving comprehensive utilization of hydrogen and oxygen, it greatly enhances the economy of renewable energy hydrogen production. A new application scenario for renewable energy hydrogen production is provided, and simulation results show that its daily operating cost is reduced by 67.5%. The energy consumption of the aerator is reduced by 28.5%, and the light rejection rate is reduced by 30%. © 2024 IEEE.

关键词： Oxygen

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Design of magnetic shielding structures for non-contact measurement of current in triangularly arranged cables 4

Design of magnetic shielding structures for non-contact meas...

引用

4th IEEE China International Youth Conference on elec.rical engineering, CIYCEE 2023

作者： Zhou, Xingyu Cai, Dongsheng Zhang, Zhengyuan Wang, Peng Khawaja, Arsalan Habib Huang, Qi Chengdu University of Technology College of Nuclear Technology and Automation Engineering 610059 China University of Electronic Science and Technology of China Sichuan Prov. Key Lab of Pwr. Syst. Wide-Area Msrmt. and Contr. Sch. of Mech. and Elec. Engineering Chengdu611731 China Southwest University of Science and Technology School of Information Engineering Mianyang China

ISBN: (纸本)9798350305562

The triangular arrangement of cables has the advantages of good magnetic field balance and compact structure, making it a commonly used arrangement in tunnel power cable lines. Accurate measurement of its current helps to make accurate judgment of the line operation status. However, the tunnel transmission method involves a complex line arrangement in a small space. Therefore, non-contact wide-range current measurement based on magnetic sensors is a better solution. In the face of uncertain magnetic interference in transmission tunnels, the use of magnetic shielding can suppress its effect on magnetic sensors. In this paper, an M-shaped magnetic shield structure is proposed for current measurement in a triangular arrangement with strong magnetic interference at random locations. Then, the thickness, position, axial length, gap width and location of the sensing areas of the structure were investigated. The effectiveness of the structure was verified by finite element analysis methods for measured currents of 200 to 2000 A. The structure was also validated by the finite element analysis method. The mean shielding uncertainty (MSU) of the shielding structure is verified to be 0.19% under the uncertainty of strong magnetic interference for a measured current of 2000 A. The M-shaped shielding structure is more resistant to interference than the C-shaped shielding structure and fits better into the triangular arrangement of the cable geometry. © 2023 IEEE.

关键词： elec.ric power transmission

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Improving the Quality and performance of wireless Ad-hoc network by Using MMCN Architecture

Improving the Quality and performance of wireless Ad-hoc net...

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2023 International Conference on computer Communication and Informatics, ICCCI 2023

作者： Kalaiarasi, A. Raja, S. Kumareshan, N. Pradeepa, M. Arun Vignesh, N. Prakash, N. Sri Shakthi Institute of Engineering and Technology Coimbatore India Sch. of Elec. Commun. Vel Tech Rangarajan Dr. Sagunthala RD Institute of Science and Technology Chennai India Sri Eshwar College of Engineering Kinathukadavu Coimbatore India SNS College of Technology ECE Department Coimbatore India GRIET Hyderabad India Kalaignar Karunanidhi Institute of Technology Coimbatore India

ISBN: (纸本)9798350348217

Mobility management and topology management plays a major role in today's wireless network connection. In a wireless network it consists of various types like mobile network, Ad-hoc network, sensor network, etc. In this type of network the nodes are dynamic in nature, because of this packet loss can be happened and it increases routing overhead. Due to this the performance of the network get decreased, to improve the performance of the network proposed a new architecture named mobility management using corner nodes (MMCN).In this architecture we implemented different topology like square, pentagon and hexagonal shaped structures. In this architecture the corner nodes supports to monitor all the mobile and it update the routing table. In experimental results compares the proposed technique with existing technique with different corner nodes like four, five and six in an network. The proposed system performs better based on the experimental and comparative analysis. © 2023 IEEE.

关键词： Topology

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Cognitive-inspired Post-processing of optical character recognition for Swedish addresses 21

Cognitive-inspired Post-processing of optical character reco...

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21st IEEE International Conference on Cognitive Informatics and Cognitive Computing, ICCI*CC 2022

作者： Andersson, Moa Kanwal, Summrina Khan, Faiza School of Electrical Engineering and Computer Science Kth Royal Institute of Technology in Stockholm Sweden Sch. of Elec. Eng. and Comp. Sci. Kth Roy. Inst. of Technol. in Stockholm Ctr. for Appl. Intelligent Syst. Res. Halmstad Univ. Sweden Riphah International University Faculty of Computing Islamabad Pakistan

ISBN: (纸本)9781665490849

Optical character recognition (OCR) has many ap-plications, such as digitizing historical documents, automating processes, and helping visually impaired people read. However, extracting text from images into a digital format is not an easy problem to solve, and the outputs from the OCR frameworks often include errors. The complexity comes from the many variations in (digital) fonts, handwriting, lighting, etc. To tackle this problem, this thesis investigates two different methods for correcting the errors in OCR output. The used dataset consists of Swedish addresses. The methods are therefore applied to postal automation to investigate the usage of these methods for further automating postal work by automatically reading addresses on parcels using OCR. The first method, the lexical implementation, uses a dataset of Swedish addresses so that any valid address should be in this dataset (hence there is a known and limited vocabulary), and misspelled addresses are corrected to the address in the lexicon with the smallest Levenshtein distance. The second approach uses the same dataset, but with artificial errors, or artificial noise, added. The addresses with this artificial noise are then used together with their correct spelling to train a machine learning model based on Neural machine translation (NMT) to automatically correct errors in OCR read addresses. The results from this study could contribute by defining in what direction future work connected to OCR and postal addresses should go. The results were that the lexical implementation outperformed the NMT model. However, more experiments including real data would be required to draw definitive conclusions as to how the methods would work in real-life applications. © 2022 IEEE.

关键词： Optical character recognition

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Mobile robot navigation method based on improved Q-learning algorithm 36

Mobile robot navigation method based on improved Q-learning ...

引用

36th Youth Academic Annual Conference of Chinese Association of Automation, YAC 2021

作者： Tan, Zhiyong Wang, Tao Yu, Yao University of Science and Technology Beijing School of Automation and Electrical Engineering Beijing100083 China University of Science and Technology Beijing Key Lab. of Knowledge Automat. for Indust. Processes of Min. of Educ. Sch. of Automat. and Elec. Eng. Beijing100083 China

ISBN: (纸本)9781665437127

In recent years, autonomous navigation of mobile robots has become one of the hot topics in research. An improved Q-learning method (IQL) combining action selec.ion strategy and Q function update method is proposed. A new exploration strategy of staged greedy exploration is used in IQL. In addition, the idea of backtracking is used to update the Q value to speed up the convergence speed. Experiments conducted in a grid environment show that compared with the classic algorithm, the algorithm converges faster and the program execution time is shorter. © 2021 IEEE.

关键词： Reinforcement learning

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Stabilization of THz waves using chaos supremacy

Stabilization of THz waves using chaos supremacy

引用

2023 International Conference on Smart-Green Technology in elec.rical and Information Systems, ICSGTEIS 2023

作者： Kuwashima, Fumiyoshi Jarrahi, Mona Cakmakyapan, Semih Wada, Kenji Haraguchi, Masanobu Kawakami, Yuki Moriyasu, Takeshi Morikawa, Osamu Kurihara, Kazuyoshi Kitahara, Hideaki Furuya, Takashi Nakajima, Makoto Tani, Masahiko Fukui University of Technology Dep. of Electr. and Electron. Eng. Fukui Japan Ucla Electrical and Computer Eng. Los AngelesCA90095 United States Osaka Metropolitan University Dep. of Physics and Electronics Osaka Japan Tokushima Univ. Industrial and Social Science Grad. Sch. of Tech. Tokushima Japan Fukui Col. Natl. Inst. of Tech. Dep. of Elec. and Inf. Eng. Fukui Japan University of Fukui Faculty of Engineering Fukui Japan Japan Coast Guard Academy Liberal Arts Kure Japan University. of Fukui School of Education Fukui Japan FIR-UF University of Fukui Fukui Japan Osaka Univ. Inst. of Laser Engineering Osaka Japan

ISBN: (纸本)9798350382822

We apply the chaos supremacy of laser chaos system to the high stabilization of THz waves. Stability was demonstrated by down converting the optical beats between laser longitudinal modes in the THz domain to the radio frequency domain and comparing a conventional free running CW laser diode to a chaotically oscillating laser diode. Because of their exceptional stability, chaotically oscillating lasers are attractive options for optical pump sources in terahertz time-domain spectroscopy systems. © 2023 IEEE.

关键词： Stabilization

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Design of a Real-Time UAV Fault Injection Simulation System

Design of a Real-Time UAV Fault Injection Simulation System

引用

2019 IEEE International Conference on Unmanned Systems, ICUS 2019

作者： Wen, Jiayun Ji, Hongxia Wang, Honglun Zhang, Menghua Li, Dawei Wu, Jianfa Beihang University Sch. of Automat. Sci. and Elec. Engineering Science and Technology on Aircraft Control Laboratory Beijing China

ISBN: (纸本)9781728137926

In order to train the capability of unmanned aerial vehicle (UAV) operators to deal with the fault, and verify the effectiveness of the fault detection and processing sch.me, a UAV fault injection simulation system is designed. Based on the advanced distributed architecture, the system performs real-time simulation and has good scalability. Wide coverage of fault scenarios could reappear by the distributed closed-loop simulation system. This system ensures the accuracy of the simulation results and meanwhile provides an intuitive feeling in the visual display module. The application results show that the simulation system has good real-time performance, high fidelity, and immersion. It provides effective support for verifying the processing ability of the UAV system to deal with faults and the rationality of the emergency response plan. © 2019 IEEE.

关键词： Fault detection

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Stabilization of THz waves using chaos supremacy

Stabilization of THz waves using chaos supremacy

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International Conference on Smart Green Technology in elec.rical and Information Systems (ICSGTEIS)

作者： Fumiyoshi Kuwashima Mona Jarrahi Semih Cakmakyapan Kenji Wada Masanobu Haraguchi Yuki Kawakami Takeshi Moriyasu Osamu Morikawa Kazuyoshi Kurihara Hideaki Kitahara Takashi Furuya Makoto Nakajima Masahiko Tani Dep. of Electr. and Electron. Eng. Fukui University of Technology Fukui Japan Electrical and Computer Eng. UCLA Los Angeles CA USA Dep. of Physics and Electronics Osaka Metropolitan University Osaka Japan Industrial and Social Science Grad. Sch. of Tech. Tokushima Univ. Tokushima Japan Dep. of Elec. and Inf. Eng. Natl. Inst. of Tech. Fukui Col. Fukui Japan Faculty of Engineering University of Fukui Fukui Japan Chair of Liberal Arts Japan Coast Guard Academy Kure Japan School of Education University. of Fukui Fukui Japan FIR-UF University of Fukui Fukui Japan Inst. of Laser Engineering Osaka Univ. Osaka Japan

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Implementation of MPPT for Flexible Solar Cells embedded on Unmanned Aerial Vehicles

Implementation of MPPT for Flexible Solar Cells embedded on ...

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2019 IEEE International Conference on Intelligent Techniques in Control, Optimization and Signal Processing, INCOS 2019

作者： Prasad, Saradh Ulaganathan, M. Durairaj, Devaraj Aljaafreh, Mamduh J. Alsalhi, Mohamad S. King Saud University College of Science Department of Physics and Astronomy Riyadh11451 Saudi Arabia Virudhunagar Dt Krishnankoil Kalasalingam Academy of Research and Education Sch. of Electronics and Elec. Technology Department of Electrical and Electronics Engineering Tamil Nadu626126 India

ISBN: (纸本)9781538695425

This paper presents a Maximum Power Point Tracking (MPPT)method for a flexible organic polymer solar cell (FOPSC) under varying shading condition. FOPSC was fabricated using a composite of three conjugated polymers namely PFO, PEO-at-co-MEH-PPV, and MEH-PPV as active layer, CNT/rGO composite as counter elec.rode (CE), substrate made of Poly-Ethylene Terephthalate (PET). The fabricated OPSC showed around 0.69 as fill factor (FF), a 0.67 V of voltage at open circuit condition(Voc), a 6.37% of power conversion efficiency (PCE, η) of and a 13.69 mA/cm2 as its current density (Jsc) at short circuit condition. The PCE of OPSC was comparable to that of OPSC with Pt CE (η =7.82%).Four OPSC strips where connected in series, aground-based UAV model and different shading conditions were recreated and the power to voltage relationships were obtained. Based on the experimental data obtained, a MPPT techniques was developed using second order derivative of output voltage with respect to duty cycle ratio (D2VOC). The buck boost converter (BBC) with a PWM controlled using a microcontroller was utilized to implement the D2VOC based MPPT. © 2019 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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