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19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014

作者： Ma, Chao Wu, Jing Li, Ning Li, Shaoyuan Li, Kang Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai China School of Electronics Electrical Engineering and Computer Science Queen's University Belfast United Kingdom

ISBN: (纸本)9783902823625

As one of key technologies in photovoltaic converter control, Maximum Power Point Tracking (MPPT) methods can keep the power conversion efficiency as high as nearly 99% under the uniform solar irradiance condition. However, these methods may fail when shading conditions occur and the power loss can over as much as 70% due to the multiple maxima in I-P curve in shading conditions v.s. single maximum point in uniformly solar irradiance. In this paper, a Real Maximum Power Point Tracking (RMPPT) strategy under Partially Shaded Conditions (PSCs) is introduced to deal with this kind of problems. An optimization problem, based on a predictive model which will change adaptively with environment, is developed to tracking the global maxima and corresponding adaptive control strategy is presented. No additional circuits are required to obtain the environment uncertainties. Finally, simulations show the effectiveness of proposed method. © IFAC.

关键词： Adaptive control systems

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Experimental testing of a prototype wireless tele-alerting system for monitoring sleeping infants (smart cot MAIA) 14

Experimental testing of a prototype wireless tele-alerting s...

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7th ACM International Conference on Pervasive Technologies Related to Assistive Environments, PETRA 2014

作者： Spiridonou, Evangelia Matralis, Grigoris Kartsidis, Panagiotis Raducan, Lilia Yfantis, Miltiadis Astaras, Alexander Automation Engineering Dept. Alexander Educational Technological Inst. of Thessaloniki Greece Medical Physics Laboratory Dept. of Medicine Aristotle University of Thessaloniki Greece Computer Science Dept. American College of Thessaloniki Greece

ISBN: (纸本)9781450327466

Real time in situ medical monitoring has become increasingly common in the past few decades, driven by the development of a wide variety of affordable sensors and power autonomous, energy efficient microcontroller platforms. Portable and unobtrusive multi-sensor data acquisition is considered routine, including real-time data processing and alerting based on measurements within or around the human body. Project MAIA has developed an intelligent baby cot system capable of monitoring sleeping infants and remotely notifying their carers under pre-programmed circumstances. It aims to add a layer of protection for infants during the first 6 months of their life, primarily targeting medical emergencies such as choking, suffocation and the elusive Sudden Infant Death Syndrome (SIDS). The MAIA system also aims to contribute to current paediatric medical knowledge by providing rare in situ research data. Copyright 2014 ACM.

关键词： Data acquisition

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The Chinese ‘‘HumanFlesh’’ Web:the first decade and beyond

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Chinese science Bulletin 2014年第26期59卷 3352-3361页

作者： Fei-Yue Wang Daniel Zeng Qingpeng Zhang James A. Hendler Jianping Cao The State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Department of Management Information Systems The University of Arizona Tucson Department of Systems Engineering and Engineering Management City University of Hong Kong Tetherless World Constellation Department of Computer Science Rensselaer Polytechnic Institute Troy The Research Center for Computational Experiments and Parallel Systems National University of Defense Technology

Human flesh search(HFS), a Web-enabled crowdsourcing phenomenon, originated in China a decade ago. In this article, we present the first comprehensive empirical analysis of HFS, focusing on the scope of HFS activities, the patterns of HFS crowd collaboration process, and the characteristics of HFS participant networks. A survey of HFS participants was conducted to provide an in-depth understanding of the HFS community and various factors that motivate these participants to contribute. This article also advocates a new stream of Web science and social computing research that will be important in predicting the future growth and use of the World Wide Web.

关键词：中国人网址肉 Web功能实证分析参与者共同体万维网

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Recent trends in chip-level design automation for digital microfluidic biochips

Recent trends in chip-level design automation for digital mi...

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International Symposium on Integrated Circuits (ISIC)

作者： Sudip Roy Chi-Ruo Wu Tsung-Yi Ho Department of Computer Science & Information Engineering National Cheng Kung University Electronic Design Automation Laboratory Taiwan

In recent years, digital microfluidic (DMF) biochips have become the most popular and emerging technology for implementing a wide range of biochemical laboratory protocols on a small hand-held device. Due to its high-throughput, high-sensitivity, automatic control, and low cost, DMF biochips are now being considered for several real-life applications like on-chip diagnosis of various cardiovascular diseases, cancer, diabetes, HIV/AIDS and others. As the complexity of biochemical assay increases, powerful computer-aided-design tools are needed for developing DMF biochips. This paper presents an overview of recent research trends in the chip-level design of DMF biochips.

关键词： Electrodes Routing Wires Design automation Pins Optimization Reliability

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Motor parameters identification based on model reference adaptive and Lyapunov stability theorem

Motor parameters identification based on model reference ada...

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2014 3rd International Conference on Electrical and Electronics engineering(ICEEE 2014)

作者： Wei-ze Li Lun Xie Gui-lan Hao Tie Sun Zhi-liang Wang School of Computer and Communication Engineering University of Science and Technology Beijing Beijing Key Laboratory of Knowledge Engineering for Materials Science School of Automation and Electrical Engineering University of Science and Technology Beijing

AC synchronous motor parameters of vector control system are vulnerable to changes in operating conditions and external factors, which may influence the stability and control accuracy. To solve this problem, we proposed a parameter identification method based on model reference adaptive and Lyapunov stability theory. The identified motor parameters are used to control the amount of correction control system, with PSIM simulation software simulation platform to verify the necessity of the parameter identification. Simulation results indicate that by using this method, the performance of the synchronous motor vector control system can be improved.

关键词： Synchronous motor air-gap flux-oriented control MRAS improved MU PSIM simulation

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A cloaking-based approach to protect location privacy in location-based services 33

A cloaking-based approach to protect location privacy in loc...

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Proceedings of the 33rd Chinese Control Conference, CCC 2014

作者： Zheng, Jiangyu Tan, Xiaobin Zou, Cliff Niu, Yukun Zhu, Jin CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application System University of Science and Technology of China Hefei230026 China Department of Automation University of Science and Technology of China Hefei230026 China Department of Electrical Engineering and Computer Science University of Central Florida OrlandoFL32816-2362 United States

ISBN: (纸本)9789881563842

With the widespread use of mobile devices, the location-based service (LBS) applications become increasingly popular, which introduces the new security challenge to protect user's location privacy. On one hand, a user expects to report his own location as far as possible away from his real location to protect his location privacy. On the other hand, in order to obtain high quality of service (QoS), users are required to report their locations as accurate as possible. To achieve the dedicated tradeoff between privacy requirement and QoS requirement, we propose a novel approach based on cloaking technique. We also discuss the disadvantage of the traditional general system model and propose an improved model. The basic idea of our approach is to select a sub-area from the generated cloaking area as user's reported location. The sub-area may not contain a user's real location, which prevents an adversary from performing attack with side information. Specifically, by defining an objective function with a novel location privacy metric and a QoS metric, we are able to convert the privacy issue to an optimization problem. Then, location privacy metric and QoS metric are given. To reduce the complexity of the optimization, a heuristic algorithm is proposed. Through privacy-preserving analysis and comparison with related work [8], we demonstrate the effectiveness and efficiency of our approach. © 2014 TCCT, CAA.

关键词： Location based services

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Evaluation of intelligibility of noisy whisper enhanced by compressive sensing 2

Evaluation of intelligibility of noisy whisper enhanced by c...

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2nd International Conference on Information Technology and Electronic Commerce, ICITEC 2014

作者： Wen, Junwu Chu, Zhuanzhuan Zhou, Jian School of Electrical Engineering and Automation Anhui University Hefei230601 China School of Computer Science and Technology Nanjing University of Posts and Telecommunications Nanjing210003 China Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei230601 China

ISBN: (纸本)9781479952984

Noisy whisper contaminated by different types of noise are enhanced by compressive sensing method. The intelligibility performance of the enhanced whisper is measured using the short time objective index (STOI). To assess the effect of spectra density on compressive sensing, the real-valued discrete Gabor transform is used to transform the noisy whisper into the time-frequency domain. Experimental results show that, similar to conventional speech enhancement algorithm, the compressive sensing based speech enhancement method can not efficiently improve intelligibility of the whisper. © 2014 IEEE.

关键词： Compressed sensing

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Non-convex dynamic economic/environmental dispatch with plug-in electric vehicle loads

Non-convex dynamic economic/environmental dispatch with plug...

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2014 IEEE Symposium Series on Computational Intelligence, IEEE SSCI 2014 - 2014 IEEE Symposium on Computational Intelligence Applications in Smart Grid, CIASG 2014

作者： Yang, Zhile Li, Kang Niu, Qun Zhang, Cheng Foley, Aoife School of Electronics Electrical Engineering and Computer Science Queen's University Belfast BelfastBT9 5AH United Kingdom School of Mechatronic Engineering and Automation Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai200072 China School of Mechanical and Aerospace Engineering Queen's University Belfast BelfastBT9 5AH United Kingdom

ISBN: (纸本)9781479945474

Electric vehicles are a key prospect for future transportation. A large penetration of electric vehicles has the potential to reduce the global fossil fuel consumption and hence the greenhouse gas emissions and air pollution. However, the additional stochastic loads imposed by plug-in electric vehicles will possibly introduce significant changes to existing load profiles. In his paper, electric vehicles loads are integrated into an 5-unit system using a non-convex dynamic dispatch model. The actual infrastructure characteristics including valve-point effects, load balance constrains and transmission loss have been included in the model. Multiple load profiles are comparatively studied and compared in terms of economic and environmental impacts in order o identify patterns to charge properly. The study as expected shows ha off-peak charging is the best scenario with respect to using less fuels and producing less emissions. © 2014 IEEE.

关键词： Plug-in electric vehicles

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Network design for distributed consensus estimation over heterogeneous sensor networks 19

Network design for distributed consensus estimation over het...

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19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014

作者： Yang, Wen Shi, Ling Yuan, Ye Wang, Xiaofan Shi, Hongbo Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai200237 China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong Hong Kong Department of Engineering University of Cambridge United Kingdom Department of Automation Shanghai Jiao Tong University Shanghai200240 China

ISBN: (纸本)9783902823625

This paper considers distributed estimation over heterogeneous sensor networks. We propose a distributed estimation strategy based on PageRank algorithm, where the link weight depends on the edge estimation covariances. We prove that the proposed estimator obtains better estimates than one typical estimator under identical initial conditions. Motivated by the advantage of the sensors with high accuracy locating at important positions, we propose an optimal sensor deployment strategy to arrange locations for sensors in a given physical network. Numerical examples are provided to demonstrate the effectiveness of the proposed estimator, showing a better performance under the optimal sensor deployment. © IFAC.

关键词： Sensor networks

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On overcoming limitations of a class of linear systems with first-order reset elements

On overcoming limitations of a class of linear systems with ...

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World Congress on Intelligent Control and automation (WCICA)

作者： Guanglei Zhao Jingcheng Wang Kang Li Department of Automation Key Laboratory of System Control and Information Processing China Electrical Engineering and Computer Science Queens University Belfast UK

This paper considers using reset control to improve transient performance and overcome some fundamental limitations of linear systems. First, an auxiliary system is presented, then, based on which, a new reset control model is proposed, such that the non-overshoot performance specification can be met for any minimum phase relative degree one plants, the results imply some limitations of linear systems are overcome and clearly illustrate the advantages of reset control. A numerical example is given to show the effectiveness.

关键词： Closed loop systems Stability analysis Gold Linear systems Steady-state Educational institutions

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