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International Conference on Informatics in control, Automation and Robotics (ICINCO)

作者： Liang Tang Lei Liu Xin Guan Beijing Institute of Control Engineering National Laboratory of Space Intelligent Control Beijing China State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology Dalian China

This paper investigates the modeling and H ∞ composite control of the coupled hysteretic dynamics in a piezoelectric micro-displacement system (PMS). First, the coupled multi-field hysteretic dynamics with physical meanings is presented for PMS. Next, the composite control analysis of the hysteretic dynamics is proposed. Then, a H ∞ synthesis controller is designed by using the simplified hysteretic dynamics. To enhance the H ∞ performance, the inversion-based feedforward compensation is augmented. The proposed H ∞ feedback control and the inversion-based feedforward can be designed separately. Finally, the experimental studies are provided to demonstrate the proposed H ∞ composite control approach.

关键词： Creep Hysteresis Vibrations Mathematical model Feedforward neural networks Dynamics

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ACP based self-learning control for urban intersection

ACP based self-learning control for urban intersection

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2014 IEEE International Conference on Service Operations and Logistics,and Informatics

作者： Feng Chen Lingyun Zhu Chuyue Han Gang Xiong University of Science and Technology of China State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of Sciences

The intersection models,such as delay models and queuing length models,are the foundations of optimal signal timing for urban *** of the field data of intersection,it is highly difficult to calibrate parameters of the intersection *** to the effects of intersection topology,channelization and traffic conditions on these models,obviously it is impossible for single model to be suitable for optimal control of various *** is emerging technique for Intelligent Traffic systems(ITS).It provides an effective means for problem-solving of complex traffic issues by constructing artificial system which is consistent with corresponding real *** on ACP approach,we propose a self-learning optimal control strategy for typical *** this approach,optimal control policy is found by systematic interaction with the traffic environment,so as to adapt dynamic traffic conditions and different intersection ***,according to traffic characteristics analysis of intersection,joint control of all approaches can be reduced to optimal control of only one ***,the computational and storage complexities are decreased *** experiment results demonstrate that our approach has considerably lower average delay and higher traffic capacity of intersection than these optimal control methods which are respectively based on HCM2000 and Webster models.

关键词： HCM agent ACP based self-learning control for urban intersection

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controllability Analysis of Networked control systems with Packets Loss

Controllability Analysis of Networked Control Systems with P...

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第三十二届中国控制会议

作者： LIN Hong SU Hongye XU Yong State Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Department of Information and Technology Concord University College Fujian Normal University

ISBN: (纸本)9789881563835

The problem of controllability and control strategy for a class of Networked control systems (NCSs) with packets loss are studied in this paper. A probabilistic controllability conception is proposed for these systems. In order to analyze the probabilistic controllability and relevant properties, a representation of the initial state by a group of constructive base of linear space is introduced. Based on this representation the affects to control system caused by packets loss can be expressed by system substates. A control strategy is developed to guarantee, the controllability of NCSs, and the minimum control steps property of this control strategy is discussed as well. Finally, a necessary and sufficient condition of probabilistic controllability for NCSs with packets loss is represented.

关键词： controllability, Networked control systems, Packets loss, Minimum control steps

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An adaptive neural network controller for chilled water temperature in HVAC systems

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Journal of Chemical and Pharmaceutical Research 2013年第9期5卷 286-290页

作者： Zhu, Jianhua Yang, Qinmin Lu, Jiangang State Key Laboratory of Industrial Control Technology Institute of Industrial Process Control Department of Control Science and Engineering Zhejiang University Hangzhou China

This paper proposed an adaptive neural network controller to maintain the chilled water temperature in heating, ventilation and air conditioning(HVAC) systems. The heat transfer behavior between chilled water and refrigerant is highly nonlinear. It is significant to design a controller that can handle the nonlinearity of the process. Firstly, by analyzing the heat transfer process from mechanism perspective, factors which influence the process have been obtained. Then the frequency of the compressor is manipulated to control the chilled water temperature in the outlet of the evaporator and uncontrolled variables are taken into the neural network controller. With a novel adaptive law for the neural network controller, both the nonlinear phenomenon and disturbance of uncontrolled variables can be handled. To further illustrate the performance of the NN controller, experiment was conducted on a pilot HVAC system. Then the result was compared with that of conventional PID controller. Real time experiment result showed the effectiveness of the adaptive neural network controller.

关键词： Water temperature

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Model-free Adaptive Dynamic Programming for Optimal control of Discrete-time Affine Nonlinear System

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IFAC Proceedings Volumes 2014年第3期47卷 7049-7054页

作者： Zhongpu Xia Dongbin Zhao Huajin Tang The State Key Laboratory of Management and Control of Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Institute for Infocomm Research Agency for Science Technology and Research (A STAR) Singapore 138632

In this paper, a model-free and effective approach is proposed to solve infinite horizon optimal control problem for affine nonlinear systems based on adaptive dynamic programming technique. The developed approach, referred to as the actor-critic structure, employs two multilayer perceptron neural networks to approximate the state-action value function and the control policy, respectively. It uses data collected arbitrarily from any reasonable sampling distribution for policy iteration. In the policy evaluation phase, a novel objective function is defined for updating the critic network, and thus makes the critic network converge to the Bellman equation directly rather than iteratively. In the policy improvement phase, the action network is updated to minimize the outputs of the critic network. The two phases alternate until no more improvement of the control policy is observed, such that the optimal control policy is achieved. Two simulation examples are provided to show the effectiveness of the approach.

关键词： Model-free adaptive dynamic programming reinforcement learning policy iteration multilayer perceptron neural network

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Fungal diversity notes 253-366:taxonomic and phylogenetic contributions to fungal taxa

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Fungal Diversity 2016年第3期78卷 1-237页

作者： Guo Jie Li Kevin D.Hyde Rui Lin Zhao Sinang Hongsanan Faten Awad Abdel-Aziz Mohamed A.Abdel-Wahab Pablo Alvarado Genivaldo Alves-Silva Joseph F.Ammirati Hiran A.Ariyawansa Abhishek Baghela Ali Hassan Bahkali Michael Beug D.Jayarama Bhat Dimitar Bojantchev Thitiya Boonpratuang Timur S.Bulgakov Erio Camporesi Marcela CBoro Oldriska Ceska Dyutiparna Chakraborty Jia Jia Chen K.W.Thilini Chethana Putarak Chomnunti Giovanni Consiglio Bao Kai Cui Dong Qin Dai Yu Cheng Dai Dinushani A.Daranagama Kanad Das Monika C.Dayarathne Eske De Crop Rafael J.V.De Oliveira Carlos Alberto Fragoso de Souza JoséIde Souza Bryn T.M.Dentinger Asha J.Dissanayake Mingkwan Doilom E.Ricardo Drechsler-Santos Masoomeh Ghobad-Nejhad Sean P.Gilmore Aristóteles Góes-Neto MichałGorczak Charles H.Haitjema Kalani Kanchana Hapuarachchi Akira Hashimoto Mao Qiang He John K.Henske Kazuyuki Hirayama Maria J.Iribarren Subashini C.Jayasiri Ruvishika S.Jayawardena Sun Jeong Jeon Gustavo H.Jerônimo Ana L.Jesus E.B.Gareth Jones Ji Chuan Kang Samantha C.Karunarathna Paul M.Kirk Sirinapa Konta Eric Kuhnert Ewald Langer Haeng Sub Lee Hyang Burm Lee Wen Jing Li Xing Hong Li Kare Liimatainen Diogo Xavier Lima Chuan Gen Lin Jian Kui Liu Xings Zhong Liu Zuo Yi Liu J.Jennifer Luangsa-ard Robert Lücking H.Thorsten Lumbsch Saisamorn Lumyong Eduardo M.Leaño Agostina V.Marano Misato Matsumura Eric H.C.McKenzie Suchada Mongkolsamrit Peter E.Mortimer Thi Thuong Thuong Nguyen Tuula Niskanen Chada Norphanphoun Michelle A.O’Malley Sittiporn Parnmen Julia Pawłowska Rekhani H.Perera Rungtiwa Phookamsak Chayanard Phukhamsakda Carmen L.A.Pires-Zottarelli Olivier Raspé Mateus A.Reck Sarah C.O.Rocha AndréL.C.M.Ade Santiago Indunil C.Senanayake Ledo Setti Qiu Ju Shang Sanjay K.Singh Esteban B.Sir Kevin V.Solomon Jie Song Prasert Srikitikulchai Marc Stadler Satinee Suetrong Hayato Takahashi Takumasa Takahashi Kazuaki Tanaka Li Ping Tang Kasun M.Thambugala Donnaya Thanakitpipattana Michael K.Theodorou Benjarong Thongbai Tuksaporn Thummarukcharoen Qing Tian Saowaluck Tibpromma Annemieke State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo 31st West Beichen RoadChaoyang DistrictBeijing 100101People’s Republic of China Centre of Excellence in Fungal Research and School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Department of Botany and Microbiology College of ScienceKing Saud UniversityP.O.Box:2455Riyadh 1145Saudi Arabia Department of Botany and Microbiology Faculty of ScienceSohag UniversitySohag 82524Egypt ALVALAB C/La Rochela nº47E-39012 SantanderSpain Micolab Programa de Pós-Graduação em Biologia de FungosAlgas e PlantasDepartamento de BotânicaUniversidade Federal de Santa CatarinaCampus Universitário TrindadeCEP:88040-900 FlorianópolisSanta CatarinaBrazil Department of Biology University of WashingtonBox 351800SeattleWA 98195-1800USA Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China National Fungal Culture Collection of India(NFCCI) Biodiversity and Palaeobiology GroupMACS’Agharkar Research InstituteG.G.Agarkar RoadPune 411004India PO Box 116 HusumWA 98623-0116USA Formerly Department of BotanyGoa UniversityGoaIndia No.128/1-J Azad Housing SocietyCurcaP.O.Goa Velha 403108India *** 345 Shipwatch LaneHerculesCA 94547USA Microbe Interaction Laboratory(BMIT) BIOTECNational Science and Technology Development Agency(NSTDA)113 Thailand Science ParkThanon PhahonyothinTombon Khlong NuengAmphoeKhlong LuangPathum Thani 12120Thailand Academy of Biology and Biotechnology Southern Federal UniversityRostov-on-Don 344090Rostov regionRussia A.M.B.Gruppo Micologico Forlivese BAntonio“Cicognani” Via Roma Forlì Italy 18 A.M.B.Circolo Micologico“Giovanni Carini”C.P.314BresciaItaly Societàper gli Studi Naturalistici della Romagna C.P.144Bagnacavallo

Notes on 113 fungal taxa are compiled in this paper,including 11 new genera,89 new species,one new subspecies,three new combinations and seven reference *** geographic and taxonomic range of fungal taxa are *** the Ascomycota the new genera Angustospora(Testudinaceae),Camporesia(Xylariaceae),Clematidis,Crassiparies(Pleosporales genera incertae sedis),Farasanispora,Longiostiolum(Pleosporales genera incertae sedis),Multilocularia(Parabambusicolaceae),Neophaeocryptopus(Dothideaceae),Parameliola(Pleosporales genera incertae sedis),and Towyspora(Lentitheciaceae)are *** introduced species are Angustospora nilensis,Aniptodera aquibella,Annulohypoxylon albidiscum,Astrocystis thailandica,Camporesia sambuci,Clematidis italica,Colletotrichum menispermi,***,Comoclathris pimpinellae,Crassiparies quadrisporus,Cytospora salicicola,Diatrype thailandica,Dothiorella rhamni,Durotheca macrostroma,Farasanispora avicenniae,Halorosellinia rhizophorae,Humicola koreana,Hypoxylon lilloi,Kirschsteiniothelia tectonae,Lindgomyces okinawaensis,Longiostiolum tectonae,Lophiostoma pseudoarmatisporum,Moelleriella phukhiaoensis,***,Mucoharknessia anthoxanthi,Multilocularia bambusae,Multiseptospora thysanolaenae,Neophaeocryptopus cytisi,Ocellularia arachchigei,***,Ochronectria thailandica,Ophiocordyceps karstii,Parameliola acaciae,***,Parastagonospora cumpignensis,Pseudodidymosphaeria phlei,Polyplosphaeria thailandica,Pseudolachnella brevifusiformis,Psiloglonium macrosporum,Rhabdodiscus albodenticulatus,Rosellinia chiangmaiensis,Saccothecium rubi,Seimatosporium pseudocornii,***,Sigarispora ononidis and Towyspora *** combinations are provided for Eutiarosporella dactylidis(sexual morph described and illus trated)and Pseudocamarosporium ***,illustrations and/or reference specimens are designated for Aposphaeria corallinolutea,Cryptovalsa ampelina,Dothiorella vidmadera,Ophiocordyceps formosana,P

关键词： Ascomycota Basidiomycota Neocallimastigomycota Oomycota.Zygomycota Phylogeny Taxonomy New genus New species

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Synchronization in complex networks and its application - A survey of recent advances and challenges

Synchronization in complex networks and its application - A ...

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作者： Tang, Yang Qian, Feng Gao, Huijun Kurths, Jürgen Potsdam Institute for Climate Impact Research Potsdam14473 Germany Institute of Physics Humboldt University of Berlin Berlin12489 Germany Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai200237 China Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin150080 China Institute for Complex Systems and Mathematical Biology University of Aberdeen AberdeenAB24 3UE United Kingdom Department of Control Theory Nizhny Novgorod State University Gagarin Avenue 23 Nizhny Novgorod606950 Russia King Abdulaziz University Jeddah21589 Saudi Arabia

Complex networks have, in recent years, brought many innovative impacts to large-scale systems. However, great challenges also come forth due to distinct complex situations and imperative requirements in human life nowadays. This paper attempts to present an overview of recent progress of synchronization of complex dynamical networks and its applications. We focus on robustness of synchronization, controllability and observability of complex networks and synchronization of multiplex networks. Then, we review several applications of synchronization in complex networks, especially in neuroscience and power grids. The present limitations are summarized and future trends are explored and tentatively highlighted. © 2014 Elsevier Ltd. All rights reserved.

关键词： Synchronization

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A Soft-Sensor for Estimating Copper Quality by Image Analysis technology

A Soft-Sensor for Estimating Copper Quality by Image Analysi...

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10th IEEE International Conference on control and Automation (IEEE ICCA)

作者： Yuan, Xiaofeng Zhang, Hongwei Song, Zhihuan State Key Laboratory of Industrial Control Technology Institute of Industrial Process Control Zhejiang University

ISBN: (纸本)9781467347082

A quasi-line estimation method for copper content based on the color image information of copper alloys is proposed to solve the problem of the time lag and other shortcomings of the off-line chemical analysis method for copper content estimation. First, a 3-CCD color camera was used to obtain the color images of the samples in the standard D65 light source. Then two regression models were developed to estimate the copper contents using the least squares regression (LSR) method. For the first model, the mean values of the R, G and B color channels were chosen as the input variables, while the principal component scores extracted by the principal component analysis (PCA) were used for the second model. Finally, the models were tested by the testing samples for predicting the copper contents. The both mean square errors of the testing samples for the two methods were about 1.5%, which can meet the precision requirements in practice. Experiment results showed that the proposed methods were feasible to quantitatively analyze the copper content in the copper alloy.

关键词： CCD image sensors chemical analysis chemical technology copper alloys image colour analysis least squares approximations principal component analysis product quality regression analysis

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Functional safety assessment for the carborne ATP of train control system

Functional safety assessment for the carborne ATP of train c...

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2012 International Conference on Information technology and Software Engineering, ITSE 2012

作者： Li, Yang Feng, Dongqin State Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University NO. 38 ZheDa Road Hangzhou China

ISBN: (纸本)9783642345272

Automatic train protection system (ATP) is the key safety-related system of train control system, so its safety reliability requirements are much higher. This article studies functional safety assessment (FSA) including function analysis, hazard identification, risk rank evaluation, risk reduction, and safety integrity verification during the development of carborne ATP. A risk rank evaluation method is proposed combining as low as reasonably practically (ALARP) criteria and risk matrix. Many safety defects of carborne ATP are found and then the design scheme is improved through FSA. The results of risk analysis software Isograph prove that carborne ATP meets the safety integrity level of its design goals at last. © 2013 Springer-Verlag.

关键词： Risk assessment

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Optimal Denial-of-Service Attack Scheduling Against Linear Quadratic Gaussian control

Optimal Denial-of-Service Attack Scheduling Against Linear Q...

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American control Conference

作者： Heng Zhang Peng Cheng Ling Shi Jiming Chen State Key Laboratory of Industrial Control Technology Zhejiang University and Cyber Innovation Joint Research Center Hangzhou China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong China

ISBN: (纸本)9781479932757

Recently a flood of literature concerned on the security issues of wireless networked control system. However, it is still lack of investigation on how the attacker should optimize its attack schedule in order to maximize the effect on the system performance due to the insufficiency of energy at the attacker side. This paper fills this gap from the aspect of control system performance. Especially, this paper investigates the optimal jamming attack which maximizes the linear quadratic Gaussian control cost function under energy constraint. After analyzing the properties of the cost function under an arbitrary attack schedule, we derive the optimal jamming attack schedule and the corresponding cost function. System stability under this optimal attack schedule is also considered. Different examples are provided to demonstrate the effectiveness of the proposed optimal jamming schedule.

关键词： Schedules Jamming Cost function Stability analysis Wireless sensor networks Sensors Networked control systems

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