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IEEE International Conference on industrial Informatics (INDIN)

作者： Huifen Wang Yong Cai Mingguang Wu State Key Laboratory of Industrial Control Technology Department of Control Science and Engineering University of Zhejiang Hangzhou Zhejiang China

ISBN: (纸本)9781424437597

The extended use of DMX512 protocol has been applied in many areas such as stage and theatre. While it has two inherent flaws in landscape lighting control: the quantitative limitation of control slots and slow bandwidth utilization ratio. This paper proposed the evolution of a management and control system for landscape lighting. By using the upper Internet management network, several lower DMX512 control networks can be connected to one computer to avoid the former flaw; based on the theory of scenes, the developed addressing way of logic group address enables the scene implemented with one packet of just two data slots. Not only can run with the Internet management network, the lower DMX512 control network can also work independently, actually it is compatible with the present standard DMX512 product.

关键词： Lighting control control systems Protocols IP networks LED lamps Logic Data communication Bandwidth Computer network management Layout

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Research on network of remote real-time surveillance system based on labVIEW

Research on network of remote real-time surveillance system ...

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IEEE International Conference on industrial Informatics (INDIN)

作者： Huadong Li Yufang Zhong Mingguang Wu State Key Laboratory of Industrial Control Technology Department of Control Science and Engineering University of Zhejiang Hangzhou Zhejiang China

ISBN: (纸本)9781424437597

Remote real-time surveillance systems are built in a network which improves the power of application. The image processing about moving objects tracked in the system is connected with network transfer. This essential part should be concerned primarily. This paper discusses the real-time problem in this kind of system, proposes image transfer solution about reference information from scene data acquisition, and builds three remote real-time surveillance systems based on labVIEW and IMAQ vision module by researching TCP and DataStocket protocol. Finally, the characters of three systems with virtual instruments are described and compared. Experimental results will be offered to verify the effectiveness of the proposed systems.

关键词： Real time systems Surveillance Image processing Organisms Optical signal processing Optical computing Layout Data acquisition Protocols Computer industry

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Research of heat dissipation of RGB-LED backlighting system on LCD

Research of heat dissipation of RGB-LED backlighting system ...

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IEEE International Conference on industrial Informatics (INDIN)

作者： Xumin Shao Yong Cai Huadong Li Mingguang Wu State Key Laboratory of Industrial Control Technology Department of Control Science and Engineering University of Zhejiang Hangzhou Zhejiang China

Heat dissipation is a very important subject during the design of RGB-LED backlighting system on LCD because the heat produced by modern LEDs themselves can excessively influence their characteristics. This paper reports on a new substrate technology that offers significant benefits over conventional polymer-based insulated metal substrates (IMS). This new type of insulated aluminum substrate printed circuit board (PCB) consists of a thermally-conductive aluminum alloy substrate that insulated by a thin, chemically grown, anodized dielectric layer. Circuit is formed above the anodized layer with magnetron sputtering technology. The corresponding thermal resistances of the new and conventional insulated metal substrate printed circuit board (PCB) are measured to be 4.78degC /W and 7.61degC/W, respectively. More heat transfer means more reliable product, less light reduction and less material consumption because of eliminating the need for additional heat sinks.

关键词： Dielectric substrates Dielectrics and electrical insulation Chemical technology Printed circuits Heat sinks Heat transfer Light emitting diodes Polymers Plastic insulation Aluminum

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Multivariable control Performance Assessment Based On Generalized Minimum Variance Benchmark

Multivariable Control Performance Assessment Based On Genera...

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Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Yu Zhao Hongye Su Jian Chu Chao Zhao Dengfeng Zhang State Key Lab.of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang University School of Mechanical Engineering Nanjing University of Science and Technology

This paper is concerned with the control performance assessment based on the multivariable generalized minimum variance *** an explicit expression for the feedback controller-invariant(here we call it generalized minimum variance) term of the multivariable control systems is obtained, and consequently the derived feedback controllerinvariant term is used as a standard benchmark for the assessment of the control performance of MIMO *** proposed approach is based on the multivariable minimum variance benchmark and univariate generalized minimum variance *** is the extension of the above two *** comparison with the minimum variance benchmark, the new approach is more reasonable and practical for the control performance assessment of multivariable ***, it does need more information of the *** utility of the developed approach is illustrated by simulation example.

关键词： Multivariable control Performance Assessment Based On Generalized Minimum Variance Benchmark

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Identification of Nonlinearly Parameterized Nonlinear Models:Application to Mass Balance Systems

Identification of Nonlinearly Parameterized Nonlinear Models...

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Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Xiangbin Liu Romeo Ortega Hongye Su Jian Chu State Key Lab.of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang University Electronic Information Engineering College Henan University of Science& Technology

A new framework to design parameter estimators for nonlinearly parameterized systems is proposed in this *** key step is the construction of a monotone function,which explicitly depends on some of the estimator tuning ***—or the related property of convexity—have already been explored by several authors with monotonicity(or convexity) being a priori assumptions that are,usually,valid only on some region of state *** our approach monotonicity is enforced by the designer,effectively becoming a synthesis *** order to dispose of degrees of freedom to render the function monotone we depart from standard(gradient or least-squares) estimators and adopt instead the recently introduced immersion and invariance approach for adaptation.

关键词： Identification of Nonlinearly Parameterized Nonlinear Models:Application to Mass Balance Systems

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Routing protocol for wireless sensor networks in home automation 8th

Routing protocol for wireless sensor networks in home automa...

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8th IFAC Conference on Fieldbuses and Networks in industrial and Embedded Systems, FeT 2009

作者： Li, Xiao Hui Xu, Hong Qin Hong, Seung Ho Wang, Zhi Piao, Xiang Fan Engineering Research Center of Metallurgical Automation and Measurement Technology Ministry of Education Wuhan University of Science and Technology Wuhan Hubei430081 China State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou310027 China Department of Electronics Information and System Engineering Hanyang University 425-791 Korea Republic of Department of Electronic Information Engineering College of Science and Engineering Yanbian University Yanji133002 China

ISBN: (纸本)9781617825583

Home automation systems based on wireless sensor/actuator networks are characterized by diversity of node power sources, limited computational power, and mobility. We propose a routing protocol that fully uses the location of static nodes to limit the search for a route to a small zone based on the analysis of characteristics and requirements. The calculation of two different kinds of zone and the route discovery procedure are described in this paper. According to the environment of home automation, we compared the performance of our routing protocols with the ad-hoc on-demand distance-vector protocol using simulation and gave suggestions for zone selection. Simulation results showed that our routing protocol dramatically reduced the routing overhead and increased the reliability.

关键词： Routing protocols

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Progress in bionic information processing techniques for an electronic nose based on olfactory models

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Chinese science Bulletin 2009年第4期54卷 521-534页

作者： LI Guang FU Jun ZHANG Jia ZHENG JunBao State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou 310027 China Department of Biomedical Engineering Zhejiang University Hangzhou 310027 China Sir Run Run Shaw Hospital Affiliated with the School of Medicine Zhejiang University Hangzhou 310016 China Faculty of Informatics and Electronics Zhejiang Sci-Tech University Hangzhou 310018 China

As a novel bionic analytical technique, an electronic nose, inspired by the mechanism of the biological olfactory system and integrated with modern sensing technology, electronic technology and pattern recognition technology, has been widely used in many areas. Moreover, recent basic research findings in biological olfaction combined with computational neuroscience promote its development both in methodology and application. In this review, the basic information processing principle of biological olfaction and artificial olfaction are summarized and compared, and four olfactory models and their applications to electronic noses are presented. Finally, a chaotic olfactory neural network is detailed and the utilization of several biologically oriented learning rules and its spatiotemporal dynamic propties for electronic noses are discussed. The integration of various phenomena and their mechanisms for biological olfaction into an electronic nose context for information processing will not only make them more bionic, but also perform better than conventional methods. However, many problems still remain, which should be solved by further cooperation between theorists and engineers.

关键词：电子鼻子嗅觉系统嗅觉模型图像识别仿生学

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Multi-step Prediction Error Approach for MPC Performance Monitoring *

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IFAC Proceedings Volumes 2009年第11期42卷 482-487页

作者： Yu Zhao Jian Chu Hongye Su Biao Huang State Key Lab. of Industrial Control Technology Institute of Cyber Systems and Control Zhejiang University Hangzhou China Department of Chemical and Materials Engineering University of Alberta Edmonton AB Canada T6G 2G6

Abstract Performance monitoring of model predictive control systems (MPC) has received a great interest from both academia and industry. In recent years some novel approaches for multivariate control performance monitoring have been developed without the requirement of process models or interactor matrices. Among them the prediction error approach has been shown to be a promising one, but it is k-step prediction based and may not be fully comparable with the MPC objective that is multi-step prediction based. This paper develops a multi-step prediction error approach for performance monitoring of model predictive control systems, and demonstrates its application in an industrial MPC performance monitoring and diagnosis problem.

关键词： Multivariable control systems Model predictive control Performance evaluation Performance monitoring Prediction error methods

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Theoretical study on transient hot-strip method by numerical analysis

Theoretical study on transient hot-strip method by numerical...

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2009 ASME Summer Heat Transfer Conference, HT2009

作者： Wei, Gaosheng Du, Xiaoze Zhang, Xinxin Yu, Fan School of Energy and Power Engineering Key Lab. of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education North China Electric Power University Beijing 102206 China Department of Thermal Engineering University of Science and Technology Beijing Beijing 100083 China

ISBN: (纸本)9780791843567

This paper presented the effects of finite dimensions of the sample and non-zero heat capacity of the strip on thermal conductivity determination with the transient hot-strip (THS) method. Through numerical analysis of temperature field within the system composed of the samples and the strip, the temperature transients at the strip surface were obtained to calculate the thermal conductivities of materials, which were compared to the exact values. The effect of heat losses out of the external surfaces of the sample and the heat capacity of the strip on thermal conductivity determination were then analyzed comprehensively. It is shown that the sample finite dimensions have great effect on thermal conductivity determination, especially on the materials with relatively higher thermal diffusivities, and the measured thermal conductivity always lower than the exact value due to the lower convective heat transfer coefficient out of the external surfaces of the sample. The measurement error is estimated less than 2.2 percent for the material with thermal diffusivity less than 4.0 × 10-6 m2/s with the sample dimensions of 120 mm x 60 mm (width x thickness) and the fitting time interval of 20 - 450s. The non-zero heat capacity of the strip has great effect on thermal conductivity determinations of the materials with relatively lower thermal diffusivities. The measurement error is estimated less than 5 percent for the material with thermal diffusivity larger than 0.8 × 10-7 m2/s with Cr20Ni80 alloy as the strip. Copyright © 2009 by ASME.

关键词： Specific heat

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GEKF,GUKF and GGPF based prediction of chaotic time-series with additive and multiplicative noises

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Chinese Physics B 2008年第9期17卷 3241-3246页

作者：伍雪冬宋执环 State Key Laboratory of Industrial Control Technology Department of Control Science and EngineeringZhejiang University

On the assumption that random interruptions in the observation process are modelled by a sequence of independent Bernoulli random variables, this paper generalize the extended Kalman filtering （EKF）, the unscented Kalman filtering （UKF） and the Gaussian particle filtering （GPF） to the case in which there is a positive probability that the observation in each time consists of noise alone and does not contain the chaotic signal （These generalized novel algorithms are referred to as GEKF, GUKF and GGPF correspondingly in this paper）. Using weights and network output of neural networks to constitute state equation and observation equation for chaotic time-series prediction to obtain the linear system state transition equation with continuous update scheme in an online fashion, and the prediction results of chaotic time series represented by the predicted observation value, these proposed novel algorithms are applied to the prediction of Mackey-Glass time-series with additive and multiplicative noises. Simulation results prove that the GGPF provides a relatively better prediction performance in comparison with GEKF and GUKF.

关键词： additive and multiplicative noises different generalized nonlinear filtering chaotic timeseries prediction neural network approximation

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