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IEEE Conference on Cybernetics and Intelligent Systems

作者： Chee Khiang Pang Cao Vinh Le Oon Peen Gan Xiang Min Chee Dan Hong Zhang Ming Luo Hian Leng Chan Frank L. Lewis Department of Electrical and Computer Engineering National University of Singapore Singapore Singapore Institute of Manufacturing Technology ASTAR (Agency for Science Technology & Research) Singapore Automation & Robotics Research Institute University of Texas Arlington Fort Worth TX USA

To reduce energy consumption for sustainable and energy-efficient manufacturing, a good understanding of the dynamic energy consumption patterns on the manufacturing shop floor is essential. In this paper, we introduce a novel approach to address the challenge of missing operation context information during in-situ energy data measurement. Finite-State Machines (FSMs) are used to model the engineering processes, and a two-stage framework for online classification of real time energy measurement data in terms of machine operation states is proposed for energy audit and machine management. The first stage uses advanced signal processing techniques to reduce noise while preserving important features, and the second stage uses intelligent pattern recognition algorithms to cluster energy consumption patterns. Our proposed two-stage framework is evaluated on an industrial injection moulding system using a Savizky-Golay (SG) filter and a Neural Network (NN), and our experimental results show a 95.85% accuracy in identification of machine operation states.

关键词： Energy consumption Artificial neural networks Injection molding Power demand Monitoring Energy measurement

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Direct Geometrico-Static Problem of Under-Constrained Cable-Driven Parallel Robots with Three Cables

Direct Geometrico-Static Problem of Under-Constrained Cable-...

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2011 IEEE International Conference on Robotics and automation(2011年IEEE世界机器人与自动化大会 ICRA 2011)

作者： Marco Carricato Jean-Pierre Merlet Dept. of Mechanical Engineering (DIEM) University of BolognaBolognaItaly COPRIN Project French National Institute for Research in Computer Science and Control (INRIA)Sophia

This paper studies under-constrained cable-driven parallel robots with three cables. A major challenge in the study of these manipulators is the intrinsic coupling between kinematics and statics, which must be tackled simultaneously. In this contribution, a general elimination procedure is provided that solves the direct geometrico-static problem, which consists in determining the platform posture and the cable tensions when the cable lengths are assigned. The problem is proven to have up to 156 complex solutions.

关键词： Polynomials Manipulators Bismuth Robot kinematics Generators

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Autopilot strategies of guided projectiles for terminal guidance

Autopilot strategies of guided projectiles for terminal guid...

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Mediterranean Conference on control and automation (MED)

作者： Spilios Theodoulis Ioannis Kitsios Leonidas Dritsas Anthony Tzes Philippe Wernert Guidance Navigation & Control Department French German Research Institute of Saint Louis Saint Louis France Electrical and Computer Engineering Department University of Patras Greece

The goal of this article is threefold: (1) Present a thorough model of a generic fin-guided projectile involving the 6DoF nonlinear dynamics, equilibrium point computation, Linear Parameter Varying (LPV) modeling & stability analysis concepts (2) Investigate various structures of low complexity closed loop feedback controllers that could be potentially applied to fin-guided projectile autopilots. (3) Investigate several crucial modeling issues relevant to autopilot design such as state space transformations which avoid output feedback in favor of state feedback, actuator model incorporation, etc. Simulation results demonstrate the performance and the complexity aspects of the proposed control algorithms.

关键词： Mathematical model Projectiles Equations Output feedback Acceleration Analytical models Actuators

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Pole structure estimation from laguerre representations using hyperbolic metrics on the unit disc

Pole structure estimation from laguerre representations usin...

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IEEE Conference on Decision and control

作者： Alexandros Soumelidis Ferenc Schipp József Bokor Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department of Numerical Analysis Faculty of Informatics Eötvös Lonránd University Budapest Hungary

ISBN: (纸本)9781612848006

This paper proposes a new approach to identification of the poles in a linear system from frequency domain data. The discrete rational transfer function is represented in a rational Laguerre-basis, where the basis elements can be expressed by powers of the Blaschke-function. This function can be interpreted as a congruence transform on the Poincaré unit disc model of the hyperbolic geometry, leading to a nice geometric interpretation of the identification algorithm. Convergence results in hyperbolic metrics will be given. The full procedure is illustrated by simulation examples.

关键词： Hafnium Estimation Frequency measurement Geometry Transforms Convergence

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Automatic intelligence application for office environment

Automatic intelligence application for office environment

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International Conference on Information Networking

作者： Woongsoo Na Gunwoo Lee Sungrae Cho Youngil Choi School of Computer Engineering and Science Chung-Ang University Seoul South Korea Cognitive Service Control Research Team Service Platform Research Department Electronics and Telecommunications Research Institute Daejeon South Korea

ISBN: (纸本)9781612846613

Ambient networks aim to provide a unified networking concept that can adapt to the very heterogeneous environment of different radio technologies and service and network environments. One of the important issues in the ambient network is to aware complex contexts in various environments. This complex context is determined by a surrounding environments or variety of situations. Office is one of the most appropriate environments to apply this ambient network service. In this application, the main product would be central storage controller (CSC), which is able to receive command from employee in the office. The CSC receives information from devices of the network and this information is saved at the CSC. The ambient network can support the CSC to process this command very efficiently. In this paper, we applied ambient network concept to office environment and show our automatic intelligence application.

关键词： Context Ambient networks Printers Mobile computing Wireless communication Security

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Complex context information for video streaming service

Complex context information for video streaming service

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International Conference on Information Networking

作者： Gunwoo Lee Woongsoo Na Sungrae Cho Eungha Kim School of Computer Engineering and Science Chung-Ang University Seoul South Korea Cognitive Service Control Research Team Service Platform Research Department Electronics and Telecommunications Research Institute Daejeon South Korea

ISBN: (纸本)9781612846613

Advances in computer networking combined with powerful home computers and modern operating systems made streaming media practical and affordable for ordinary consumers. We are enjoying different streaming services such as DMB, PMP, smart phone, etc. that have never experienced before. In the future computing environment such as ubiquitous environment, user can be served video streaming service by complex contexts. In the paper, we suggest and simulate the complex context information for multimedia streaming. In this paper, we applied complex context awareness concept to video streaming service and demonstrate our applications.

关键词： Context Streaming media Context modeling Computational modeling Multimedia communication computers Topology

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Smartphone emotions based on human-dog interaction

Smartphone emotions based on human-dog interaction

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International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Tamás Kifor Tibor Gottdank Ákos Hajnal Péter Baranyi Brúnó Korondi Péter Korondi Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Hungary Department of Mechatronics Optics and Engineering Informatics Budapest University슠of슠Technology슠and슠Economics Hungary

The aim of this paper is to place the relation of human and intelligent devices on a new, ethologically inspired base. So far, when designing intelligent device interaction mainly human to human type interactions were taken into consideration to form the human-system relationship. Since intelligent devices perform an inferior role to their human user, we consider that a more successful human-system relationship could be set up if the communication and interaction between them were based on ethological (human-animal communication) aspects. The aim of this paper is to work out this paradigm shift, considering philosophical, epistemological, mathematical and implementation aspects. This paper takes the abstract ethological model of the 20,000 year old human-dog relationship as the base of the human - intelligent system interaction and it is implemented in a Smartphone.

关键词： Mobile communication Humans Mobile handsets Dogs Robots Mathematical model Surface waves

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A graph description and analysis framework of liver vascular system

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Journal of Computational Information Systems 2011年第6期7卷 1998-2005页

作者： Chen, Yufei Drechsler, Klaus Laura, Cristina Oyarzun Zhao, Weidong Liu, Yanli Post-doctoral Research Center of Control Science and Engineering Tongji University Shanghai 200092 China Research Center of CAD Tongji University Shanghai 200092 China Fraunhofer Institute for Computer Graphics Research Cognitive Computing and Medical Imaging 64283 Darmstadt Germany

Accurate description and analysis of liver vascular system is critical in diagnosis and treatment of liver diseases. Even though there are plenty of researches put their efforts on the acquisition of optimal visual information in liver vascular system, quite a few studies focus on the quantitatively geometrical and structural analysis on them. In this paper, we proposed a graph description and analysis framework for liver vascular structure representation. First of all, the vessels were enhanced through Hessian eigenvalue calculation in order to be conveniently segmented from the liver image. Secondly, a three dimensional thinning based skeletonization method was applied on the vessel image to obtain the topological structure of the liver vessels. The skeleton result was then represented as a graph, followed by the geometrical attributes computation. Finally, the graph was efficiently pruned to form a directed acyclic vascular tree without redundant and irrelevant branches based on a flow conservation approach. The experiments on liver CT datasets show that the proposed framework can effectively obtain the liver vascular structure and its quantitative description. Copyright © 2011 Binary Information Press.

关键词： Three dimensional computer graphics

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A study of hierarchical network security situation evaluation system for electric power enterprise based on Grey Clustering Analysis

A study of hierarchical network security situation evaluatio...

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International Conference on computer Science and Service System (CSSS)

作者： Kunlun Gao Ruzhi Xu Yufei Wang Yikang Li Information & Communication Department China Electrical Power Research Institute Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

ISBN: (纸本)9781424497621

Focused on the network security situation evaluation, a novel hierarchical evaluation system, which is based on Grey Clustering Analysis, is proposed. In this system, network attacks are classified into "Strong", "Medium", and "Weak" three harmful levels by Grey Clustering Analysis to construct a hierarchical index system. Then, the Analytic Hierarchy Process is used to calculate the impact factor of each network attack, and form the evaluation system to calculate the network security situation value. With Grey Clustering Analysis, harmful level ownership of each network attacks is determined, and each network attacks' influence can be truly reflected. Moreover, network security situation value's calculation speed can be improved by Analytic Hierarchy Process. Finally, large amounts of electric power on-site experiments indicated that the evaluation system is well performed by showing network security situation in both coarse-grained and fine-grained analysis.

关键词： Indexes Power systems Monitoring computer hacking Guidelines Software

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A systems design approach to manage mechatronics R&D

A systems design approach to manage mechatronics R&D

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IEEE Conference on Cybernetics and Intelligent Systems

作者： Chee Khiang Pang Tsan Sheng Ng Frank L. Lewis Tong Heng Lee Department of Electrical and Computer Engineering National University of Singapore Singapore Department of Industrial and Systems Engineering National University of Singapore Singapore Automation and Robotics Research Institute University of Texas Arlington Fort Worth TX USA

We propose a systems design procedure to integrate mechanical design, structural prototyping, and servo evaluation through careful comprehension of the servo-mechanical-prototype production cycle commonly employed in mechatronic industries. Our approach focuses on the Modal Parametric Identification (MPI) of key feedback parameters for fast exchange of design specifications and information to enable efficient conduct of product design evaluations and support schedule compression of the R&D project life cycle. Using the commercial Hard Disk Drive (HDD) as a case example, we demonstrate how our approach allows inter-disciplinary specifications to be communicated amongst engineers from different backgrounds to speed up the R&D process for the next generation of intelligent manufacturing. This provides the project management team with powerful decision-making tools for project strategy formulation, and improvements in project outcome are potentially massive because of the low costs of change.

关键词： Mechatronics Prototypes System analysis and design Servomotors Production Damping Poles and zeros

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