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2011 IEEE International Conference on Service Operations, Logistics and Informatics, SOLI 2011

作者： Hu, Yu-Ling Wen, Ding Liu, Xi-Wei Beijing Key Laboratory of Automatic Control System School of Automation Beijing Institute of Technology Beijing 100081 China School of Electric and Information Engineering Beijing University of Civil Engineering and Architecture Beijing 100044 China Research Center for Military Computational Experiments and Parallel Systems Technology National University of Defense Technology Changsha 410073 China Institute of Automation Chinese Academy of Sciences Beijing 100190 China

ISBN: (纸本)9781457705731

Because the structure and function of a high-rise building is complex and the density of occupants in it is high, fire safety is still a worldwide difficult problem. Safety and timely evacuation is an important issue under fire in the high-rise buildings. Because it is impossible in fact to do experiments about fire safety evacuation in high-rise buildings, in this paper, a research framework based on the artificial system, computational experiments, and parallel excution (ACP) theory is proposed. First, an evacuation process is considered to compose of two stages including pre-evacuation stage and evacuation stage. Second, artifical men with recognition functions based agent technology is proposed. Finally, computational experiments are designed by using an orthogonal experiment table, and experiment procedure of pre-evacuation stage is given. The idea of systimatic research about the influence of fire control facilities to evacuation is also proposed © 2011 IEEE.

关键词： Fires

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Event-based NMPC for networked control systems over UDP-like communication channels

Event-based NMPC for networked control systems over UDP-like...

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作者： Varutti, Paolo Findeisen, Rolf Laboratory for Systems Theory and Automatic Control Institute for Automation Engineering Otto-von-Guericke University Magdeburg Germany Intl. Max Planck Res. Sch. for Analysis Des. and Optimization in Chem. and Biochem. Proc. Eng. Magdeburg Germany

ISBN: (纸本)9781457700804

Networked controlled systems have recently received attention from the industry since they allow for flexibility and cost reduction. However, due to the fact that communication media can be subject to random delays, packet dropouts, jitters and other uncertainties, destabilization of the closed loop system can occur. Model predictive control has demonstrated to be a valid solution to cope with these issues. On the other hand, it typically relies on TCP-like (or connection oriented) protocols, i.e. either the received or the lost information is acknowledged. In this work, we propose an event-based model predictive control algorithm for nonlinear continuous time systems subject to state and input constraints which is based on UDP-like communication. We show that without the use of any acknowledgment or error message we can derive a compensation algorithm, which used in combination with the controller, under mild conditions, guarantees closed loop stability. The solution is applied to a continuous stirred tank reactor where an exothermic irreversible reaction takes place. The simulations show the effectiveness of the presented algorithm. © 2011 AACC American automatic control Council.

关键词： Model predictive control

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An included angle based nonlinearity measure for hammerstein-like systems

An included angle based nonlinearity measure for hammerstein...

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International Conference on Electric Information and control engineering (ICEICE)

作者： Jingjing Du Chunyue Song School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo China State Key Laboratory of Industrial Control Technology Institute of Industrial Process Control University of Zhejiang Hangzhou China

Based on deep investigation to the static and dynamic characteristics of Hammerstein and Wiener model structures, this paper proposes an included angle based nonlinearity measure for SISO Hammerstein-like systems. The proposed measure is instrumental for both analysis and synthesis of nonlinear systems, especially when a multilinear model controller is designed. A CSTR process is studied to illustrate the effectiveness of the proposed nonlinearity measure.

关键词： Chemical reactors Nonlinear dynamical systems Steady-state Mathematical model process control Predictive models

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Dynamic output feedback H∞ control for uncertain neutral interconnected systems

Dynamic output feedback H∞ control for uncertain neutral in...

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International Conference on Intelligent control and Information processing (ICICIP)

作者： Heli Hu Dan Zhao Xuehong Wang Key Laboratory of Manufacturing Industrial and Integrated Automation Shenyang University Shenyang China Department of Fundamental Teaching and the Department of Automatic Control and Engineering Shenyang Institute of Engineering Shenyang China

This note is concerned with the H ∞ decentralized control for a class of uncertain neutral interconnected systems via dynamic output feedback. In the frame of Lyapunov stability theory, in view of the nonlinearity on certain matrix variables, a mathematical technique is developed to obtain a criterion in terms of linear matrix inequalities for the existence of the anticipated controller. The parameterized characterization of the controller is achieved by solving some algebraic equations and LMIs. Besides, the norm of the transfer function from the disturbance input to the controlled output is less than the given index. A numerical example is included to illustrate effectiveness of the proposed method.

关键词： Output feedback Interconnected systems Robustness Delay Linear matrix inequalities Matrices Distributed control

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Output tracking of Markovian jumping systems via error feedback regulation

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IFAC Proceedings Volumes 2011年第1期44卷 2424-2429页

作者： Shuping He Zhengtao Ding Fei Liu Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Institute of Automation Jiangnan University Wuxi 214122 P. R.China Control Systems Centre School of Electrical and Electronic Engineering University of Manchester Manchester M60 1QD UK

Abstract This paper studies the output tracking problem of continuous-time Markovian jumping systems (MJSs) via error feedback scheme. With the extension of output regulation to MJSs, sufficient conditions are obtained based on stochastic Lyapunov-Krasovskii functional. The resulting closed-loop system is guaranteed to be stochastically stable and the output tracking is achieved almost asymptotically. Moreover, the output regulation error almost asymptotically converges to zero. In order to ensure the relaxed solutions of the regulation equations, we described the problem as a semi-definite optimization approach via disciplined convex programming. Simulation result is also given to illustrate the performance and effectiveness of the proposed approach.

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Experiment design for Pauli channel estimation

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IFAC Proceedings Volumes 2011年第1期44卷 4344-4349页

作者： Gábor Balló Katalin M. Hangos Department of Electrical Engineering and Information Systems University of Pannonia Egyetem u. 10 H-8200 Veszprém Hungary Process Control Research Group Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences P.O. Box 63 H-1518 Budapest Hungary

Abstract Experiment design for quantum channel parameter estimation includes the design of the quantum input to the channel and the observables to be applied on the resulting quantum output system, called the experiment configuration. An experiment design procedure based on maximizing the Fisher information of the qubit Pauli channel parameters is presented in this paper. It can be shown that the Fisher information is a convex function in both the input and the experiment configuration parameters. This leads to an optimal setting that includes pure input states and projective measurements directed towards the channel directions. An iterative method of estimating the channel directions is also proposed.

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Generating Li-Yorke chaos in a stable continuous-time T-S fuzzy model via time-delay feedback control

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Chinese Physics B 2010年第7期19卷 141-149页

作者：孙秋野张化光赵琰 College of Information Science and Engineering Northeastern University Key Laboratory of Integrated Automation of Process Industry Ministry of EducationNortheastern University Department of Automatic Control Engineering Shenyang Institute of Engineering

This paper investigates the chaotification problem of a stable continuous-time T S fuzzy system. A simple nonlinear state time-delay feedback controller is designed by parallel distributed compensation technique. Then, the asymptotically approximate relationship between the controlled continuous-time T-S fuzzy system with time-delay and a discrete-time T-S fuzzy system is established. Based on the discrete-time T-S fuzzy system, it proves that the chaos in the discrete- time T-S fuzzy system satisfies the Li-Yorke definition by choosing appropriate controller parameters via the revised Marotto theorem. Finally, the effectiveness of the proposed chaotic anticontrol method is verified by a practical example.

关键词： chaotification T-S fuzzy model time-delay feedback Li Yorke chaos 1

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Identification of the nonlinear, multivariable behavior of mechatronic combustion engines

Identification of the nonlinear, multivariable behavior of m...

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5th IFAC Symposium on Mechatronic Systems, MECHATRONICS 2010

作者： Isermann, R. Schreiber, A. Institute of Automatic Control Laboratory of Control Engineering and Process Automation TU Darmstadt Germany

ISBN: (纸本)9783902661760

The identification of the nonlinear dynamic behavior of combustion engines on test benches is described. A method, that is based on the combination of statistical stationary engine measurement (Design of Experiments - DoE) and dynamic identification techniques for nonlinear multi-input systems is shown. The dynamics are excited by several amplitude-modulated pseudorandom-binary- signals (APRBS), which act on the engine simultaneously, in order to allow a short measurement time period. To show the applicability of the described identification and modelling methods several models for a common-rail diesel engine with exhaust gas recirculation and variable geometry turbocharger (VGT) are shown, with five input variables and the outputs nitrogen-oxide emissions, opacity, air-fuel ratio (Lambda) and exhaust gas temperature. © 2010 IFAC.

关键词： Diesel engines

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Stationary global-local emission models of a CR-diesel engine with adaptive regressor selection for measurements of airpath and combustion

Stationary global-local emission models of a CR-diesel engin...

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作者： Sequenz, Heiko Mrosek, Matthias Isermann, Rolf Institute of Automatic Control Laboratory of Control Engineering and Process Automation Technical University Darmstadt Germany

ISBN: (纸本)9783902661722

A model structure for stationary emission models is presented. The emissions NOx, soot and opacity are separately modeled. Model inputs are the air mass flow rate, charge air pressure, intake temperature, the location of mass fraction burned 50% and the engine operation point. Local polynomials are trained for each operation point, defined by engine speed and injection quantity. To increase accuracy a selection algorithm of the significant regressors is presented. The local models are composed by means of weighting functions, depending on the engine operation points, to global emission models. For a rasterized operation range, the weighting can be interpreted as a linear interpolation of local models. This enables an easy implementation to common electronic control units (ECUs). Measurements from a CR-Diesel engine show the quality of the models. © 2010 IFAC.

关键词： Diesel engines

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An ACP-based framework for occupants safety evacuation under fire in high-rise buildings

An ACP-based framework for occupants safety evacuation under...

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

作者： Yu-Ling Hu Ding Wen Xi-Wei Liu School of Electric and Information Engineering Beijing University of Civil Engineering and Architecture Beijing China Beijing Key Laboratory of Automatic Control System School of Automation Beijing Institute of Technology Beijing China Research Center of Military Computational Experiments and Parallel Systems Technology National University of Defense Technology Changsha China Institute of Automation Chinese Academy and Sciences Beijing China

关键词： Fires Computational modeling Buildings

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