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Canadian Conference on Electrical and computer engineering (CCECE)

作者： Vadim Geurkov Vladimir Dynkin Reza Sedaghat Electrical and Computer Engineering Department Ryerson University Toronto Canada Department of System Identification Institute for Control Science Moscow Russia

In conventional signature analysis, faulty units are identified by mismatch between the actual and reference signatures. The amount of reference signatures can be quite large for a complex system that requires high testing resolution. This complicates the diagnosis procedure. We show how under certain restrictions this amount can be reduced, preserving the diagnosis resolution and the aliasing rate. We construct a signature analyzer that is capable of locating faulty units. If the analyzer is implemented in the external automated test equipment, its throughput requirements can be diminished.

关键词： Error analysis Fault diagnosis Digital systems Circuit faults system testing Hardware computer errors Error correction Redundancy Fault detection

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Dynamic reconfiguration for shipboard power system using multi-agent system

Dynamic reconfiguration for shipboard power system using mul...

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IEEE General Meeting Power& Energy Society

作者： James A. Momoh Yan Xia Keisha C. Alfred Center for Energy System and Control CESaC Department of Electrical and Computer Engineering Howard University College of Medicine WA USA Center for Energy System and Control CESaC Department of Electrical Engineering Howard University College of Medicine WA USA

Survivability and reliability are critical for the operation of shipboard power system both in normal and damage conditions. This paper presents a novel dynamic reconfiguration approach for shipboard power system by using multi-agent system. With the similar topology of the shipboard power system, the multi-agent system is generalized to constraint satisfaction problem (CSP). The environment- reactive rules-agents (ERA) approach, which is multi-agent oriented, is used to support the organization formation behavior in dynamic reconfiguration. The effectiveness of the proposed approach is illustrated by test results in a reduced shipboard power system.

关键词： Power system dynamics Power systems Multiagent systems Barium control systems Marine vehicles Electrical engineering

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Outdoor vehicle and shadow segmentation by temporal edge density information of adjacent frames

Outdoor vehicle and shadow segmentation by temporal edge den...

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International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： Chanchai Techawatcharapaikul Pakorn Kaewtrakulpong Supakorn Siddhichai Department of Computer Engineering Thailand Department of Instrumentation and Control System Engineering Facaulty of Engineering King Mongkut's University of Technology Bangkok Thailand National Electronics and Computer Technology Center NECTEC Pathum Thani Thailand

The problem of vehicle detection and segmentation in outdoor scenes is tackled. Vehicle shadows pose problems in vehicle segmentation step. In this paper, it is proposed to employ temporal edge density information as prior knowledge to distinguish moving vehicle from moving shadow and background in a traffic surveillance system. Experimental results showed good moving vehicle segmentation performance. The proposed approach is currently limited to free-flowing traffic scenes.

关键词： Image edge detection Vehicles Image color analysis Image segmentation Pixel Accuracy computer integrated manufacturing

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The Imbalanced Problem in Mass-spectrometry Data Analysis

The Imbalanced Problem in Mass-spectrometry Data Analysis

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第二届最优化与系统生物学国际研讨会

作者： Hao-Hua Meng Guo-Zheng Li Rui-Sheng Wang Xing-Ming Zhao Luonan Chen School of Computer Engineering and Science Shanghai University Department of Control Science and Engineering Tongji University School of Information Renmin University of China Institute of System Biology Shanghai University

In many cases, protein mass-spectrometry data are imbalanced, i.e. the number of positive examples is much less than that of negative ones, which generally degrade the performance of classifiers used for protein recognition. Despite its importance, few works have been conducted to handle this problem. In this paper, we present a new method that utilizes the EasyEnsemble algorithm to cope with the imbalance problem in mass-spectrometry data. Furthermore, two feature selection algorithms, namely PREE (Prediction Risk based feature selection for EasyEnsemble) and PRIEE (Prediction Risk based feature selection for Individuals of EasyEnsemble), are proposed to select informative features and improve the performance of the EasyEnsemble classifier. Experimental results on three mass spectra data sets demonstrate that the proposed methods outperform two existing filter feature selection methods, which prove the effectiveness of the proposed methods.

关键词： Mass-spectrometry, Feature selection, Ensemble

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Utilizing Model Structure for Efficient Simultaneous Localization and Mapping for a UAV Application

Utilizing Model Structure for Efficient Simultaneous Localiz...

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IEEE Conference on Aerospace

作者： Rickard Karlsson Thomas B. Schon David Tornqvist Gianpaolo Conte Fredrik Gustafsson Division of Automatic Control Department of Electrical Engineering Linköping University Linkoping Sweden Division of Artificial Intelligence and Integrated Computer System Department of Computer and Information Science Linköping University Linkoping Sweden

This contribution aims at unifying two recent trends in applied particle filtering (PF). The first trend is the major impact in simultaneous localization and mapping (SLAM) applications, utilizing the FastSLAM algorithm. The second one is the implications of the marginalized particle filter (MPF) or the Rao-Blackwellized particle filter (RBPF) in positioning and tracking applications. Using the standard FastSLAM algorithm, only low-dimensional vehicle models are computationally feasible. In this work, an algorithm is introduced which merges FastSLAM and MPF, and the result is an algorithm for SLAM applications, where state vectors of higher dimensions can be used. Results using experimental data from a UAV (helicopter) are presented. The algorithm fuses measurements from on-board inertial sensors (accelerometer and gyro) and vision in order to solve the SLAM problem, i.e., enable navigation over a long period of time.

关键词： Simultaneous localization and mapping Unmanned aerial vehicles Particle filters Filtering Particle tracking Computational modeling Helicopters Fuses Time measurement Sensor fusion

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Road traffic estimation based on position and velocity of a cellular phone

Road traffic estimation based on position and velocity of a ...

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International Conference on ITS Telecommunications (ITST)

作者： S. Promnoi P. Tangamchit W. Pattara-Atikom Department of Control System and Instrumentation Engineering King Mongkut''s University of Technology Thonburi Thailand National Electronics and Computer Technology Center Pathum Thani Thailand

This research studies the proof of concept to road traffic estimation based on the position and velocity of cellular phones. The positioning technique, received signal strength method, was applied to obtain road traffic data. The two algorithms: Linear interpolation of position from signal strength and centroid of signal strength were implemented to identify the positions and velocity of a mobile phone in cars. Successfully estimated results, position and speed, showed that both of two methods have the potential to estimate traffic congestion while the first method is more efficient than another. According to the first method, it yielded an average error of 190.8 m, while the velocity estimation yielded an average error of 10.38 km/hr. The errors from another are 195.29 m and 10.39 km/hr respectively.

关键词： Cellular phones Mobile handsets Roads Base stations Neurons Interpolation Signal processing Broadcasting Velocity control control systems

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Stability of Hybrid Impulsive systems With Time Delays and Stochastic Effects

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IFAC Proceedings Volumes 2008年第2期41卷 5933-5938页

作者： Zhichun Yang Yiguang Hong Key Laboratory of Systems and Control Institute of Systems Science Chinese Academy of Sciences Beijing 100080 China Chongqing Key Lab of Operations Research and System Engineering Department of Mathematics and Computer Science Chongqing Normal University Chongqing 400047 China

In this paper, a class of hybrid impulsive systems with time delays and stochastic effects are considered. We obtain some criteria on the global exponential stability in mean square for the impulsive stochastic delayed systems. To do this, differential inequalities and ℒ-operator inequalities are developed. An example is given to illustrate the effectiveness of our results.

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Detection of hazardous driving behavior using fuzzy logic

Detection of hazardous driving behavior using fuzzy logic

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International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： T. Imkamon P. Saensom P. Tangamchit P. Pongpaibool Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thailand Network Technology Laboratory National Electronics and Computer Technology Center Klong Luang Pathum Thani Thailand

We propose a system that can record driving events and detect unsafe driving behaviors. Three sensors, an engine control unit (ECU) reader, a 3-axis accelerometer, and a camera are used, in which they represent the car, the passenger, and the driverpsilas perspective. Our system combines data from these three sensors with a fuzzy inference system to identify an event of hazardous driving. The output of the system is the driving risk level ranging from 1 to 3, where 1 is the safest. The output of the system was verified by comparison with a questionnaire from three passengers in a test run experiment.

关键词： Cameras Accelerometers Acceleration Vehicles Driver circuits Roads Sensors

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Model-based nonlinear optimal blood glucose control of Type I diabetes patients

Model-based nonlinear optimal blood glucose control of Type ...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Levente Kovacs Balazs Kulcsar Jozsef Bokor Zoltan Benyo Department of Control Engineering and Information Technology Budapest University슠of슠Technology슠and슠Economics Hungary Delft Center for System and Control Faculty of Mechanical Maritime and Materials Engineering Technical University Delft Netherlands Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary

Using induced L 2 -norm minimization, a robust controller was developed for insulin delivery in Type I diabetic patients. The high-complexity nonlinear diabetic patient Sorensen-model [1] was considered. LPV (Linear Parameter Varying) methodology was used to develop open loop model and robust controller. Considering the normoglycemic set point (81.1 mg/dL), a polytopic set was created over the physiologic boundaries of the glucose-insulin interaction of the Sorensen-model. In this way, LPV model formalism was defined. The robust control was developed considering input and output multiplicative uncertainties with other weighting functions.

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Analysis and Formulation of Printing Process to Develop Knowledge-Based Scheduling Software

Analysis and Formulation of Printing Process to Develop Know...

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International Conference on Innovative Computing, Information and control (ICICIC)

作者： Shimpei Matsumoto Koji Okuhara Nobuyuki Ueno Hiroaki Ishii Department of Computer and Control Engineering Oita National College of Technology Oita Japan Department of Management and Information System Prefectural University of Hiroshima Hiroshima Japan Graduate School of Information Science and Technology Osaka University Suita Osaka Japan

We have addressed the improvement of production efficiency and the review of business process for an automotive parts supplier, and the goal of this study is the development of production management software. This paper describes the business result analysis in printing process and a formulation of the tacit procedure by observing worker's empirical rule to develop the knowledge-based scheduling software. The whole of business processes are clarified by our previous researches, and the scheduling problem of printing process has been mainly discussed. Previously the printing process has been improved only by theoretical aspect, however it cannot flexibly respond to the change of production conditions such as the dispersion of order, the interrupt of urgent task, and the inventory quantity of parts in spite of the actual field can handle these. Therefore this paper regards that the technical know-how of tacit knowledge in the actual printing field is absolutely necessary factor in response to the change of production conditions, and a formulation designed to the minimization of setup operation are expressed.

关键词： Printing Production Job shop scheduling Business Lot sizing Manufacturing Color

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