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2009 IEEE International Conference on Industrial Technology, ICIT 2009

作者： Lei, Zhang Xiumin, Yang Xiaofei, Li Peng, Guan Ke, Zhang School of Mechanical Engineering School of Automation Northeastern University Shenyang 110006 China Dept. Automatic Control Shenyang Institutes of Engineering Shenyang 110036 China Shenyang Jian Zhu University Shenyang 110168 China

ISBN: (纸本)1424435064

In the time domain, on the basis of two-probe straightness error separation technology, this paper gives a new measurement measuring the flatness error based on the error separation technology-the two-probe flatness error separation measurement. It also gives the principle of the two-probe flatness error separation measurement, establishes the corresponding mathematical models, and carries on the simulation analysis and experiment testifying. Theoretical simulation and experimental result have proved the correctness and effectiveness of the separation principle (1) after analyzing the data with the two-probe error separation measurement, we can obtain the flatness of the panel measured as well as the straight error of the guiding rail.(2) when measuring with the two-probe measurement, the accumulation error of the initial position of the sensors is linear, so it can not influent the assessment of the error.(3) the two-probe error separation technology uses less one or two probes than the flatness error separation technology with the three or four probes does, so it need not consider installing several sensors on a plane and eliminates the problem made by the non-linear accumulation error of the initial position of the sensors. Therefore, the two-probe flatness error separation measurement this paper gives can make the flatness error separation technology more applied.

关键词： Probes

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Real-time vision-based multiple vehicle detection and tracking for nighttime traffic surveillance

Real-time vision-based multiple vehicle detection and tracki...

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2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009

作者： Chen, Yen-Lin Wu, Bing-Fei Fan, Chung-Jui Dept. of Computer Science and Information Engineering National Taipei University of Technology Taipei Taiwan Department of Electrical and Control Engineering National Chiao Tung University Hsinchu Taiwan

ISBN: (纸本)9781424427949

This study presents an effective system for detecting and tracking moving vehicles in nighttime traffic scene for traffic surveillance. The proposed method identifies vehicles based on detecting and locating vehicle headlights and taillights by using the techniques of image segmentation and pattern analysis. First, to effectively extract bright objects of interest, a fast bright-object segmentation process based on automatic multilevel histogram thresholding is applied on the nighttime road-scene images. This automatic multilevel thresholding approach can provide robustness and adaptability for the detection system to be operated well under various illumination conditions at night. The extracted bright objects are processed by a spatial clustering and tracking procedure by locating and analyzing the spatial and temporal features of vehicle light patterns, and then identifying and classifying the moving cars and motorbikes in the traffic scenes. Experimental results demonstrate that the proposed approach is feasible and effective for vehicle detection and identification in various nighttime environments for traffic surveillance. ©2009 IEEE.

关键词： Vehicles

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Environmental surface boundary tracking and description using a UAV with vision

Environmental surface boundary tracking and description usin...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Pablo Lanillos José J. Ruz Gonzalo Pajares Jesus M. de la Cruz Dept. of Computer Architecture and Automatic Control Complutense University Madrid Spain Dept. of Software Engineering and Artificial Intelligence Complutense University Madrid Spain

This work presents a strategy to track and describe the boundary of an environmental surface using a sequence of incomplete boundary images coming from an UAV with a camera onboard. The algorithm uses all captured images to feed the trajectory, which drives the UAV towards the next point to take the next shot, until the identification is completed. The multiple patterns of the input image make the problem difficult. Our approach orders the points of the image to identify the existent edges, and computes the trajectory as a minimization problem using a multi-objective function that gathers information about the boundary and the polynomial that fit in these edges.

关键词： Unmanned aerial vehicles Cameras Data mining Shape Monitoring Spline Image sensors Fires Surveillance computer architecture

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Optimizing hybrid control trajectories by model abstraction and refinement

Optimizing hybrid control trajectories by model abstraction ...

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作者： Paschedag, Tina Fall, Michael Stursberg, Olaf Institute of Control and System Theory Dept. of Electrical Engineering and Computer Science University of Kassel Germany Technische Universität München Germany

ISBN: (纸本)9783902661593

Techniques for optimal control of hybrid systems have to consider the complex interaction of continuous and discrete dynamics and are required to limit the computational complexity arising from the corresponding search spaces. This contribution proposes an approach to computing hybrid optimal control trajectories based on an iterative model-abstraction and refinement scheme. The hybrid automaton is mapped to an abstract representation which is enriched by cost information gained from graph. Candidate solutions are computed on the abstract level and are mapped back to the level of the hybrid model, where they are validated. A refinement step guides the search for (sub-) optimal hybrid control trajectories. The proposed approach is implemented for the optimization of the start-up procedure for a chemical reactor.

关键词： Hybrid systems

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Implementation of the hybrid fingerprint verification

Implementation of the hybrid fingerprint verification

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2009 2nd International Conference on computer Science and Its Applications, CSA 2009

作者： Chae, Seung-Hoon Lim, Sung Jin Chung, Yongwha Pan, Sung Bum Dept. of Information and Communication Engineering Chosun Univ. Gwangju Korea Republic of Dept. of Computer and Information Science Korea Univ. Sejong Campus Chungnam Korea Republic of Dept. of Control Instrumentation and Robot Engineering Chosun Univ. Gwangju Korea Republic of

ISBN: (纸本)9781424449460

In contemporary society, access to information is easy because of advanced communication media, so security system which prevent unauthorized access is considered important. Fingerprint verification systems are very convenient and secure. Minutiae-based fingerprint verification is widely used in fingerprint verification. However, existing systems can cause errors according to size and quality of fingerprint images that are read only with a use of minutiae. Due to such errors, the users who have no authority of access are allowed to use the information, which is a problem. This paper proposes hybrid fingerprint verification methods of two kinds to improve performance of minutiae-based fingerprint verification. One is method using fingerprint binary image, and another is method using ridge-information. The result which experiments two kind methods, we confirm to improved performance of fingerprint verification than when only minutiae-based verification was used. © 2009 IEEE.

关键词： Binary images

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Novel Emotion Engine for Robot and Its Parameter Tuning by Bacterial Foraging

Novel Emotion Engine for Robot and Its Parameter Tuning by B...

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5th International Symposium on Applied Computational Intelligence and Informatics

作者： Kim, Dong-Hwa Nair, Shivashankar B. Dept. of Instrumentation and Control Eng. Hanbat National University Daejeon City South Korea Department of Computer Science and Engineering Indian Institute of Technology Guwahati Guwahati India

ISBN: (纸本)9781424444779

In this paper, we propose the novel emotional engine like human's emotion and its parameter tuning using by hybrid system bacterial foraging (BF) and agent machine learning. The most general method uses neural networks to classify emotion by using speech and face image data for human's emotion recognition. But high-dimension and large size of this data cause low-speed learning of neural network. The main idea of the proposed method is to suggest emotion engine and to express emotion by hybrid system composed of bacterial foraging and multi-agent system. Experimental result shows that this method can achieve better performance for human's emotion recognition than others and express emotion.

关键词： Hybrid systems

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PTFW: A protocol testing framework for wireless sensor networks 09

PTFW: A protocol testing framework for wireless sensor netwo...

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2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009

作者： Fan, Jialu Chen, Jiming Deng, Ruilong Sun, Youxian Shen, Xuemin State Key Lab. of Industrial Control Technology Zhejiang University Hangzhou China Dept. of Electrical and Computer Engineering University of Waterloo Waterloo Canada

ISBN: (纸本)9781605585697

Protocol testing has been one of the most active fields in computer networks. In Wireless Sensor Networks (WSNs),before directly employing protocols on hardware testbed, we expect an effective test framework to verify the logical cor-rectness of protocols on computers, which could facilitate the whole test process. Towards this goal, this paper introduces an upper test framework in WSNs, namely Protocol Testing Framework for WSNs (PTFW). PTFW is a visual client-server test framework which is built upon the unique features of WSNs. It is based on the layered architecture of WSNs and uses Finite State Machine (FSM) theory as the kernel. The proposed test framework is developed on Linux Operating System (OS) and coded in standard C language for the consideration of compatibility for real-world implementation. PTFW provides the standards/specifications of conformance testing for test on hardware testbed. To validate the performance and effectiveness of PTFW, we apply it to a real-world WSNs protocol. The results show that PTFW exhibits excellent visual and real-time features, which bring considerable convenience to the later employments on testbed. Copyright © 2009 ACM.

关键词： Wireless sensor networks

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A Simulation Study of Consensus Speed over Scale-Free Networks

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IFAC Proceedings Volumes 2009年第22期42卷 74-79页

作者： Wei Sun YangQuan Chen Dept. of Automatic Control Beijing Institute of Technology Beijing 100081 China Center for Self-Organizing and Intelligent Systems (CSOIS) Dept. of Electrical and Computer Engineering Utah State University Logan UT 84322 USA

Scale-free network and consensus among multiple agents have both drawn quite much attention. To investigate the consensus speed over scale-free networks is the main topic in this paper. Given a set of different values for the power-law distribution parameter γ, and a set of different values for the minimum degree ( d min ) for the nodes, the algebraic connectivity (λ 2 ) of the network topology is studied, as well as the time ( t c ) (or iteration ( k c ), for discrete algorithm) taken to reach consensus. The results exhibit that λ 2 decreases while γ increases. The λ 2 increases monotonically as d min grows, and they fit very well in a linear relationship. t c (or k c ) decreases as γ reduces and d min increases. Via observing the behavior of the largest eigenvalue (λ n ) of the Laplacian of the network topology, we draw the conclusion that the robustness over time delays declines while the robustness over node-failures and edge-failures increases.

关键词： Scale-free network consensus algebraic connectivity network robustness

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Adaptive regulation - Rejection of unknown multiple narrow band disturbances

Adaptive regulation - Rejection of unknown multiple narrow b...

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Mediterranean Conference on control and Automation (MED)

作者： Ioan Dore Landau Aurelian Constantinescu Marouane Alma Dept. of Automatic Control GIPSA-LAB France Electrical Engineering Dept Montréal Canada Dept. of Automatic Control GIPSA-LAB Saint-Martin d'Héres France

The paper presents a methodology for feedback adaptive control of active vibration systems in the presence of time varying unknown multiple narrow band disturbances. A direct adaptive control scheme based on the internal model principle and the use of the Youla-Kucera parametrization is proposed. This approach is comparatively evaluated with respect to an indirect adaptive control scheme based on the estimation of the disturbance model. The evaluation of the methodology is done in real time on an active suspension system and on an active vibration control system using an inertial actuator.

关键词： Narrowband Adaptive control Programmable control Transducers control systems automatic control Feedback Vibration control White noise Adaptive signal processing

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Energy-Aware Sensor Selection and Scheduling in Wireless Sensor Networks *

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IFAC Proceedings Volumes 2009年第20期42卷 186-191页

作者： Eilyan Bitar Enrique Baeyens Kameshwar Poolla Dept. of Mechanical Engineering University of California Berkeley CA 94720 Dept. of Systems Engineering and Automatic Control University of Valladolid Paseo del Cauce s/n 47011 Valladolid Spain

This paper is concerned with system level energy management in wireless sensor networks. The network is required to conduct certain tasks which require information from individual sensors to be sent to a base station. Sensors cease functioning when they deplete their energy reserves or may fail abruptly due to random malfunctions. Sensor selection refers to the number of times sensors are interrogated, while sensor scheduling refers to the sequence in which these interrogations are conducted. A sensor management layer that isolates the system objectives from selection/scheduling is proposed. It is shown that sensor selection reduces to integer linear programming. Sensor scheduling is necessary when random sensor failures are considered or when the task definition is not stationary. Some general principles emerge. If all sensors are equally reliable, the optimal policy is to use the most energetic sensors first. If all sensors are equally energetic, the optimal policy is to use the least reliable sensor first.

关键词： Wireless Sensor Networks Energy Estimation

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