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International Conference on Computer Network, Electronic and Automation (ICCNEA)

作者： Hongliang Yan Jiapeng Li Leiming Li Juju Ma Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells Xi'an Shiyou University Xi'an China School of Electronic Engineering Xi'an Shiyou University Xi'an China

ISBN: (数字)9781728170831

ISBN: (纸本)9781728170848

Aiming at the problems of overshoot and static error in the shunt active power filter (SAPF) direct current side voltage control, a new control strategy based on linear active disturbance rejection control(LADRC) is proposed. Its mathematical model is established by SAPF structural analysis, and then a second-order expanded state observer is designed and the error feedback unit is linearized. Linear active disturbance rejection controller applied to APF direct current side voltage control. The simulation results show that the application of linear active disturbance rejection control can effectively improve the compensation performance and dynamic response speed of SAPF compared with traditional PI control strategies, which verifies the effectiveness of the control method.

关键词： Voltage control Harmonic analysis Mathematical model Power harmonic filters Active filters Observers

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Analysis of dynamic characteristics of five-axis CNC machine tool

Analysis of dynamic characteristics of five-axis CNC machine...

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7th International Symposium on Test Automation and Instrumentation, ISTAI 2018

作者： Wang, Sicheng Wang, Hongjun Han, Qiushi Gao, Yangjie Ge, Lun School of Mechanical and Electrical Engineering Beijing Information Science and Technology University Beijing China Key Lab of Modern Measurement and Control Technology Beijing Information Science and Technology University Beijing China Beijing Key Laboratory of Mechanical-Electronic System Measurement and Control Beijing Information Science and Technology University Beijing China

CNC machine tools play important role in industries. The dynamic characteristics of the machine tools are the main factor which affected the status of a machine tools. A three-dimensional model of a five-axis CNC machine tool was built by using PRO/E. First, the model was imported into ANSYS software in order to analyse the dynamic characteristics of the machine tool;the first six natural frequencies and vibration modes of the machine tool were obtained through modal analysis and harmonic response analysis. The accuracy of the finite element analysis model was verified through the experimental results. Finally, the optimisation suggestions of the machine tool structure were proposed. © 2019 Institution of engineering and technology. All rights reserved.

关键词： Machine tools

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Maintenance robot motion control based on Kinect gesture recognition

Maintenance robot motion control based on Kinect gesture rec...

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7th International Symposium on Test Automation and Instrumentation, ISTAI 2018

作者： Ge, Lun Wang, Hongjun Xing, Jishou School of Mechanical and Electrical Engineering Beijing Information Science and Technology University Beijing China Key Laboratory of Modern Measurement and Control Technology Beijing Information Science and Technology University Beijing China Beijing Key Laboratory of Mechanical-Electronic System Measurement and Control Beijing Information Science and Technology University Beijing China

Maintenance robot is used widely in industries due to its convenience. The maintenance robot system is introduced. The hardware frame is designed in detail. Based on gesture recognition, the effect of controlling the robot movement is achieved. Gesture recognition information is achieved through the acquisition of human skeleton information by a Kinect sensor. The construction of the gesture library is done. The maintenance robot control system is set up to control the omnidirectional mobile robot driven by the Mecanum wheel. Finally, the maintenance robot is developed and the design functions are carried out. © 2019 Institution of engineering and technology. All rights reserved.

关键词： Gesture recognition

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Design of driving wheel speed test device based on magnetoelectric sensor

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Journal of measurement Science and Instrumentation 2020年第2期11卷 186-192页

作者： HOU Zhi-wei CHEN Chang-xin MA Tie-hua WANG Yu JIAO Bin Science and Technology on Electronic Test&Measurement Laboratory North University of ChinaTaiyuan 030051China School of Electrical and Control Engineering North University of ChinaTaiyuan 030051China

In order to study the transmission efficiency of engine and optimize the structure of driving wheel,the rotational speed storage test device of driving wheel in tracked vehicle based on magnetoelectric sensor was *** device consisted of a mounting bracket,a sensor and a *** mounting bracket was installed in vehicle body after fixing the tester and sensor to mounting bracket beside the driving *** the storage test instrument,the wireless trigger technology was applied to synchronously record and stored the rotational speed data of the driving wheel in tracked *** the experiment was finished,the data was read out through the upper *** valid data and satisfactory results were obtained through both simulated and actual vehicle tests.

关键词： tracked vehicle storage test driving wheel test magnetoelectric sensor

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Characteristic analysis of double excitation sensor based on F-30 multi-dimensional digital magnetic measurement system

Characteristic analysis of double excitation sensor based on...

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7th International Symposium on Test Automation and Instrumentation, ISTAI 2018

作者： Zhang, Yanhai Xu, Xiaoli Zuo, Yunbo Zhang, Xiangqi School of Mechanical and Electrical Engineering Beijing Information Science and Technology University Beijing100192 China Beijing Information Technology University Modern Measurement and Control Technology Ministry of Education Key Laboratory Beijing100192 China Beijing Information Technology University Electromechanical System Measurement and Control Beijing Key Laboratory Beijing100192 China

According to the analysis characteristic of the on-line sensor of the mechanical device, the on-line magnetic field of the double excitation sensor is analysed by using the most advanced F-30 multi-dimensional digital magnetic measurement system. Using F-30 mode scanning analysis of the dual incentive sensor of two-dimensional (2D) and 3D characteristics, a system of a 3D mesh of the sensor is obtained, the 3D graph, the 3D graphic model, at last, through export data for magnetic field distribution of more detailed information. The accuracy of the F-30 magnetic field analysis system is very high, and the field distribution information of the sensor is more practical. This analysis is of a great reference value for the experimental analysis of the sensor. © 2019 Institution of engineering and technology. All rights reserved.

关键词： Magnetic fields

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Resonant beam communications with echo interference elimination

arXiv

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arXiv 2021年

作者： Xiong, Mingliang Liu, Qingwen Wang, Gang Giannakis, Georgios B. Zhang, Sihai Zhu, Jinkang Huang, Chuan College of Electronics and Information Engineering Tongji University Shanghai201804 China State Key Lab of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing100081 China Department of Electrical and Computer Engineering University of Minnesota MinneapolisMN55455 United States Key Lab of Wireless-Optical Communications University of Science and Technology of China Hefei Anhui230026 China School of Science and Engineering Chinese University of Hong Kong Shenzhen Guangdong518172 Hong Kong

Resonant beam communications (RBCom) is capable of providing wide bandwidth when using light as the carrier. Besides, the RBCom system possesses the characteristics of mobility, high signal-to-noise ratio (SNR), and multiplexing. Nevertheless, the channel of the RBCom system is distinct from other light communication technologies due to the echo interference issue. In this paper, we reveal the mechanism of the echo interference and propose the method to eliminate the interference. Moreover, we present an exemplary design based on frequency shifting and optical filtering, along with its mathematic model and performance analysis. The numerical evaluation shows that the channel capacity is greater than 15 bit/s/Hz. Copyright © 2021, The Authors. All rights reserved.

关键词： Internet of things

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A Double-ended Contactless Current Traveling Waves Scheme for Fault Location in Overhead Transmission Lines

A Double-ended Contactless Current Traveling Waves Scheme fo...

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IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Patrick Nyaaba Ayambire Qi Huang Olusola Bamisile Paul Oswald Kwasi Anane Albert K. Awopone System Wid-Area Measurement and Control School of Mechanical and Electrical Engineering Sichuan Provincial Key Lab of Power Chengdu China College of Technology University of Education Winneba Kumasi Ghana

ISBN: (数字)9781728196060

ISBN: (纸本)9781728196077

This study presents a contactless current traveling wave fault location scheme for a two-terminal overhead transmission line based on a tunnel Magnetoresistive sensor. The proposed method is implemented by installing a tunnel Magnetoresistive sensor array at both ends of the line for current traveling wave measurement. The measured data is transmitted to a remote monitoring unit (RMU) for analysis. The performance of the proposed method is evaluated for different fault situations using an experimental set-up. The proposed exhibited high efficiency for current traveling wave fault location. The results were analyzed for fault location using the differentiator smoother to reduce the time of arrival errors. The proposed scheme is compared with a general traveling wave-based scheme for transmission line fault distance location. In all test cases, the proposed scheme offered very efficient results for all categories of faults with an average relative error of 0.024%.

关键词： Wavelet transforms Power transmission lines Current measurement Fault location Transmission line measurements Magnetoresistance Sensor arrays

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Erratum: An improved point spread function for complex susceptibility-based magnetic particle imaging (2022 Meas. Sci. Technol. 33 095402)

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measurement Science and technology 2023年第7期34卷 079601-079601页

作者： Tao Jiang Wentong Yi Zhongzhou Du Wenzhong Liu School of Artificial Intelligence and Automation Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China China-Belt and Road Joint Laboratory on Measurement and Control Technology Wuhan 430074 People’s Republic of China School of Computer and Communication Engineering Zhengzhou University of Light Industry Zhengzhou 450001 People’s Republic of China

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Single-Channel Grayscale Processing Algorithm for Transmission Tissue Images Based on Heterogeneity Detection 8th

Single-Channel Grayscale Processing Algorithm for Transmissi...

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8th International Conference on communications, Signal Processing, and Systems, CSPS 2019

作者： Zhang, Baoju Zhang, Chengcheng Li, Gang Lin, Ling Zhang, Cuiping Wang, Fengjuan Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission Tianjin Normal University Tianjin300387 China School of Electronics and Communication Engineering Tianjin Normal University Tianjin30087 China State Key Laboratory of Precision Measurement Technology and Instruments Tianjin University Tianjin300072 China Tianjin Key Laboratory of Biomedical Detecting Techniques & Instruments Tianjin University Tianjin300072 China

ISBN: (纸本)9789811394089

Aiming at the problem of low contrast and unclear edge of gray image in hyperspectral transmission imaging, the single-channel grayscale processing algorithm was applied to the simulated image based on the simulation experiment. The experiment shows that this algorithm improves the contrast to a certain extent and enhances the image edge and grayscale image quality. While improving the quality of grayscale images, this algorithm also triples the number of original images, providing a data enhancement method for heterogeneity detection using deep learning. Therefore, this experiment verifies the feasibility of the single-channel processing algorithm and may provide a method for multispectral transmission biological tissue images, it may be a data enhancement method that can be applied to deep learning for tissue image detection. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Image enhancement

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In-Situ Joule-Heating Drives Rapid and On-Demand Catalytic Vocs Removal with Ultralow Energy Consumption

SSRN

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SSRN 2022年

作者： Du, Peng Wang, Ruyue Deng, Bohan He, Xian Long, Yuanzheng Yang, Cheng Wang, Zhiwei Ge, Binghui Huang, Kai Zhang, Ru Lei, Ming Wu, Hui State Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing100876 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China Xitucheng Road NO.10 Beijing100876 China Key Laboratory of Beijing on Regional Air Pollution Control Beijing Key Laboratory for Green Catalysis and Separation Center of Excellence for Environmental Safety and Biological Effects Beijing University of Technology Beijing100124 China Institutes of Physical Science and Information Technology Anhui University Hefei230601 China

The running of environmental purification usually employs massive consumption of energy, and it is of significant scientific importance and real impact to reduce the energy cost in environmental treatments. In particular, it is urgently required to minimalize the energy cost of the catalytic oxidation of gaseous pollutants represented by volatile organic compounds (VOCs). Herein, we develop a rapid in-situ Joule-heating configuration to drive the catalytic VOCs oxidation with ultra-low energy consumption. As a prototypical illustration, atomically dispersed Pt/CeO 2 catalyst was decorated on conductive Nickle foam substrate to act as both catalytic and electric components with minimal pressure drop and high compatibility. The catalytic system exhibited 100% conversion toward toluene (1000 ppm, 33 ml min -1 ) with an ultralow input power of 6.5 W, which was 87% lower than that of a conventional heating furnace. Moreover, the long-term stability, high universality for various VOCs, and responsiveness for real-time changing components were also demonstrated. The outstanding electro-thermal properties of the system can be extended to more gaseous catalytic reactions with much lower energy consumptions. © 2022, The Authors. All rights reserved.

关键词： Volatile organic compounds

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