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作者： Henrion, Didier Vyhlídal, Tomáš CNRS LAAS 7 avenue du colonel Roche 31077 Toulouse France Université de Toulouse UPS INSA INP ISAE LAAS 31077 Toulouse France Faculty of Electrical Engineering Czech Technical University in Prague Technická 2 166 07 Praha 6 Czech Republic Dept. of Instrumentation and Control Eng. Center for Applied Cybernetics Czech Technical University in Prague Technická 4 166 07 Praha 6 Czech Republic

ISBN: (纸本)9783902661937

We follow a polynomial approach to analyse strong stability of linear difference equations with several independent delays. Upon application of the Hermite stability criterion on the discrete-time homogeneous characteristic polynomial, assessing strong stability amounts to deciding positive definiteness of a multivariate trigonometric polynomial matrix. This latter problem is addressed with a converging hierarchy of linear matrix inequalities (LMIs). Numerical experiments indicate that certificates of strong stability can be obtained at a reasonable computational cost for state dimension and number of delays not exceeding 4 or 5. © 2011 IFAC.

关键词： Linear matrix inequalities

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The prediction of energy production and planning of the Southwest coast offshore wind farm

The prediction of energy production and planning of the Sout...

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International Conference on Power Electronics (ICPE)

作者： Moon-Seon Jeong Chae-Joo Moon Man Soo Choi Gwon-Seong Jeong Young-Hak Chang Dept. of Electrical Engineering College of Mokpo National University 61 Dorim-riCheonggye-myeon Muan-gun Jeonnam South Korea DMS CO. Wind Power Divition of Suwon Suwon South Korea Dept. of Control Robot Engineering College of Mokpo National University 61 Dorim-ri Cheonggye-myeon Muan-gun Jeonnam South Korea

Korea has been developing coast has been developing wind energy on land for a long time, and the government is in preparations of an offshore wind farm for the first time. The conditions of the wind rose affect not only the structures of wind turbine, but are also important in predicting the future energy production rate. If an offshore wind farm is to be composed, it is the most important factor to predict the amount of energy produced each year on the predicted site of the wind farm. In order to predict this, a Met mast must be installed at the selected site for more than one year to analyze the measured wind rose resource. This study has analyzed the wind rose resource by using the data obtained through the Met mast of 60[m] height installed on an island of the Southwest coast, and the measured data has been applied on WindPRO and WAsP programs to predict the annual energy production based on the calculation of the energy production under the assumption that a 100[MW] level offshore wind farm is composed at the selected site. The result was 313,672.24[MWh/year] if 50 2[MW] level wind generators are applied, thus a usage rate of 35.81% is expected.

关键词： Power electronics Asia

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A new human identification method for intelligent video surveillance system

A new human identification method for intelligent video surv...

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2010 19th International Conference on Computer Communications and Networks, ICCCN 2010

作者： Moon, Hae-Min Pan, Sumg Bum Dept. of Information and Communication Engineering Chosun Univ. Gwangju Korea Republic of Dept. of Control Instrumentation and Robot Engineering Chosun Univ. Gwangju Korea Republic of

ISBN: (纸本)9781424471164

Recently, the use of security surveillance system including CCTV is increasing due to the increase of terrors and crimes. However as the data recorded through the video surveillance system is exposed, the invasion of privacy is raised. The studies on the technology of protecting privacy from the surveillance system in addition to these organizations are actively carried out. To distinguish the human of privacy protection, the identification technique is necessary. This paper proposes the human identification method that uses height and clothing-color information appropriate for the intelligent video surveillance system based on smartcard. It can obtain reliable feature information using smartcard. In this paper, representative colors are extracted by applying octree-based color quantization technique to the clothing region and height is extracted from the geometrical information of the images. Identification is accomplished by comparing the similarities between two data based on Euclidean distance. From the experiment, we could see that the identification of a human can be checked through the proposed system. © 2010 IEEE.

关键词： Color

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The multi-modal human identification based on smartcard in video surveillance system

The multi-modal human identification based on smartcard in v...

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2010 IEEE/ACM International Conference on Green Computing and Communications, GreenCom 2010, 2010 IEEE/ACM International Conference on Cyber, Physical and Social Computing, CPSCom 2010

作者： Moon, Hae-Min Won, Chulho Pan, Sung Bum Dept. of Information and Communication Engineering Chosim University Gwangju Korea Republic of Dept. of Electrical and Computer Engineering California State University Fresno CA United States Dept. of Control Instrumentation and Robot Engineering Chosun University Gwangju Korea Republic of

ISBN: (纸本)9780769543314

Recently, the use of security surveillance system including CCTV is increasing due to the increase of terrors and crimes. However as the data recorded through the video surveillance system is exposed, the invasion of privacy is raised. The research on the technology of protecting privacy from the surveillance system in addition to these organizations is actively carried out. At this time, to distinguish the human of privacy protection, the identification technique is necessary. For identification, the proposed system uses soft-biometrics such as color and height information based on smartcard. It can obtain reliable feature information using smartcard. In this paper, representative colors are extracted by applying octree-based color quantization technique to the clothing region and height is extracted from the geometrical information of the images. The identification is accomplished by comparing the similarities between two data based on Euclidean distance. Through identification by using multiple information rather than single information, the proposed system demonstrates the possibility of human identification under the surveillance camera environment. © 2010 IEEE.

关键词： Color

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Positive trigonometric polynomials for strong stability of difference equations

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IFAC Proceedings Volumes 2011年第1期44卷 296-301页

作者： Didier Henrion Tomáš Vyhlídal CNRS LAAS 7 avenue du colonel Roche 31077 Toulouse France Université de Toulouse UPS INSA INP ISAE 31077 Toulouse France Faculty of Electrical Engineering Czech Technical University in Prague Technická 2 166 07 Praha 6 Czech Republic Center for Applied Cybernetics Dept. of Instrumentation and Control Eng. Faculty of Mechanical Engineering Czech Technical University in Prague Technická 4 166 07 Praha 6 Czech Republic

Abstract We follow a polynomial approach to analyse strong stability of linear difference equations with several independent delays. Upon application of the Hermite stability criterion on the discrete-time homogeneous characteristic polynomial, assessing strong stability amounts to deciding positive definiteness of a multivariate trigonometric polynomial matrix. This latter problem is addressed with a converging hierarchy of linear matrix inequalities (LMIs). Numerical experiments indicate that certificates of strong stability can be obtained at a reasonable computational cost for state dimension and number of delays not exceeding 4 or 5.

关键词： strong stability spectral radius trigonometric polynomials LMI

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An incremental granular network for data modeling in software engineering

An incremental granular network for data modeling in softwar...

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作者： Lee, Myung-Won Kwak, Keun-Chang Dept. of Control Instrumentation Robot Engineering Chosun University 375 Seosuk-dong Dong-gu Gwangju 501-759 Korea Republic of

ISBN: (纸本)9788988678183

In this paper, we propose an incremental method of Granular Networks (GN) to construct conceptual and computational platform of Granular Computing (GrC). The essence of this network is to describe the associations between information granules including fuzzy sets formed both in the input and output spaces. The context within which such relationships are being formed is established by the system developer. Here information granules are built using Contextdriven Fuzzy Clustering (CFC). This clustering develops clusters by preserving the homogeneity of the clustered patterns associated with the input and output space. The experimental results on well-known software module of Medical Imaging System (MIS) revealed that the incremental granular network showed a good performance in comparison to other previous literature.

关键词： Granulation

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Enhanced PID controllers in combustion control

Enhanced PID controllers in combustion control

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作者： Šulc, Bohumil Oswald, Cyril Czech Technical University in Prague Dept. of Instrumentation and Control Engineering Czech Republic

ISBN: (纸本)9789604742530

control of combustion is an important task mainly with respect to energy efficiency and ecological impacts. This problem has become significant with the expansion of biomass-fired boilers, even those with low power. The combustion process consists of phenomena that we have little information about for an exact mathematical description. The equations of the chemical reactions are known, but in reality the combustion of biomass is much more complicated and more variable than a mathematical model can express. It is therefore not simple to design a controller that is able to control the combustion process effectively over the whole range. Small-scale biomass-fired boilers are usually equipped with simple two-state (on/off) controllers. Attempts in many laboratories to develop a model of the combustion process suitable for controller setting and parameter adaption have not been satisfactory and generally valid until now. Thus, advanced model-based control strategies are not usable, while the use of a model-free controller is not excluded if well-designed tuning rules can be offered. For the control of combustion process in boilers preparing hot water for heating systems, the problem of controller parameter tuning is not so urgent as the economy and the environment-friendliness of its operation. Due to the great heat inertia, the deviations of the temperature of heated water as the controlled variable do not vary much from the desired value, while the boiler must often be operated under conditions that are far from those assumed in the nominal factory setting. A controller offering not only the main control function but also the ability to renew optimal combustion is presented here.

关键词： Combustion

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Energy-optimized secure remote fingerprint authentication in a mobile environment

Energy-optimized secure remote fingerprint authentication in...

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2010 International Conference on Consumer Electronics, ICCE 2010

作者： Hong, Seungwoo Lee, Sungju Chung, Yongwha Kim, Hakil Pan, Sungbum Dept. of Computer and Information Science Korea University Korea Republic of Human ID Research Team ETRI Chosun University Korea Republic of Dept. of Information and Communication Engineering Biometrics Engineering Research Center Inha University Korea Republic of Dept. Control Instrumentation and Robot Engineering Chosun University Korea Republic of

ISBN: (纸本)9781424443161

To optimize the energy consumption during transmission in a secure remote fingerprint authentication system, most approaches have considered a fixed-rate compression of WSQ(Wavelet Scalar Quantization). To balance the energy consumption and the recognition accuracy, however, we need to consider the total energy consumption during compression/encryption/transmission and the quality of the given image. In this paper, we first develop an energy-accuracy prediction model. Then, from the given image, we can evaluate the quality of it. Finally, from the user's minimum requirement of the recognition accuracy, the energy-optimized compression rate under the requirement can be derived adaptively. Based on the experimental result, we show that total energy consumption of the fixed approach can be reduced by 29%. ©2010 IEEE.

关键词： Energy utilization

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Mobile IPTV QoS/QoE monitoring system based on OMA DM protocol

Mobile IPTV QoS/QoE monitoring system based on OMA DM protoc...

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2010 International Conference on Information and Communication Technology Convergence, ICTC 2010

作者： Jeong, Seungho Ahn, Heejune Dept. Control and Instrumentation Engineering Seoul National Univ. of Science and Technology Nowon-gu Seoul Korea Republic of

ISBN: (纸本)9781424498062

Mobile video service is emerging as an attractive service, on basis of the successful IPTV commercialization and recent incredible smart-phone penetration to the mobile market. However, the lack of QoE/QoS monitoring mechanism will be a major obstacle for wider acceptance. In this paper, we present a QoE/QoS monitoring scheme, extending OMA-DM protocol and streaming QoE parameters. The design and implementation of the monitoring smart-phone agent and server verifies the seamless integration with existing mobile device management environment. © 2010 IEEE.

关键词： IPTV

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Design of terminal sliding mode control system for second-order systems

Design of terminal sliding mode control system for second-or...

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作者： Jo, Young-Hun Lee, Yong-Hwa Park, Kang-Bak Dept. of Control and Instrumentation Engineering Korea University Jochiwon-Eup Yeongi-Gun Chungnam 339-700 Korea Republic of

ISBN: (纸本)9784907764364

In many of applications, the finite time stabilization is very important. However, most of control schemes proposed so far have been focused on the verification of asymptotic stability. Recently, terminal sliding mode control systems have been studied to guarantee that the error gets to zero in a finite time. The terminal sliding surface proposed so far used a power function whose exponent is a rational number with an odd number over an odd number. Thus, in this paper, we propose a novel terminal sliding surface using power function whose exponent can be a rational numbers between 0 to 1. © 2010 SICE.

关键词： Asymptotic stability

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