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International Conference on Virtual systems and MultiMedia

作者： T. Horie K. Tanaka N. Abe H. Taki Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka Japan Faculty of System Engineering Wakayama University Japan

The master-slave control is a technique often used when controlling a remote robot. In this technique, the operator can work while noticing the force which is added to the robot. However, when the taken time in the communication between the robot (the slave) and the operator (the master) is long, accurate control becomes difficult. This research aims to generate the force environment using the posture of the robot and the value detected with the sensor. With this, even if the communication time is long, the operator can operate the robot appropriately while he senses the force added to the robot.

关键词： Haptic interfaces Force control Robot control Robot sensing systems Force sensors Imaging phantoms Master-slave Communication system control End effectors systems engineering and theory

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Decision-making method of optimum inspection interval for plant maintenance by genetic algorithms

Decision-making method of optimum inspection interval for pl...

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International Symposium on Environmentally Conscious Design and Inverse Manufacturing (EcoDesign)

作者： M. Yamamoto R. Zaier Peng Chen T. Toyota Faculty of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan

ISBN: (纸本)0769512666

Most of the mathematical methods to decide the time interval of inspection are established by reliability theory, but most of them are difficult to apply to practical plant machinery. In this paper, we propose a decision-making method for the inspection time interval for plant machinery maintenance by a genetic algorithm (GA) when the plant machines are preserved by time-based maintenance (TBM).

关键词： Decision making Inspection Genetic algorithms Machinery Cost function Shape Power generation economics Reliability theory Preventive maintenance Weibull distribution

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Fingerprint classification approaches: an overview

Fingerprint classification approaches: an overview

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International Symposium on Signal Processing and Its Applications (ISSPA)

作者： L.C. Ern G. Sulong Faculty of Computer Science and Information System University Technology of Malaysia Skudai Malaysia

Fingerprint classification was introduced to reduce the searching time of fingerprint recognition. There have been many new approaches introduced, mostly in the design of feature extraction. However, no literature to date explicitly documents all fingerprint classification approaches. On the other hand, this paper studies some of the current approaches by grouping them into two groups-classifier, and feature extractor. A lot of emphasis put into the design of the fingerprint feature extractor shows that it deserves to be separated from the classifier. While it cannot be said that the development of the classifier has remained stagnant, there has been a lack of novel designs of the classifier, and a lot of research into neural network based classifiers.

关键词： Fingerprint recognition Feature extraction Neural networks Humans Biometrics Signal processing computer science Information systems Electronic mail Fingers

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Synchronized processing of tele-manipulation system

Synchronized processing of tele-manipulation system

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International Conference on Virtual systems and MultiMedia

作者： M. Kusano K. Tanaka N. Abe Faculty of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan

How to construct a tele-manipulation system of a robot arm with both visual and haptic sensation is shown together with the experimental result. To move a robot arm at a slave system as an operator intends, he manipulates a force feedback device (PHANTOM) at a master system while watching a television image of the robot arm taken at the slave system. A force torque sensor (FTS: a force torque sensor and FT data: the output data of FTS) is mounted on a robot hand, and the output is conveyed to the PHANToM. This system gives a user the feeling as if he were directly operating the remote robot arm. However the following problems occur in operation. (1) The difference between the state of a robot and that indicated in a television (2) The delay caused the output of FTS to the PHANToM (3) It is difficult to synchronize the TV image with the force returned with a PHANToM. We propose two techniques to solve these problems, and show their effects in detail.

关键词： Imaging phantoms TV Delay effects Haptic interfaces Master-slave Torque Fellows systems engineering and theory Force feedback Robot sensing systems

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Sensory evaluation of expressive actions of InterRobot for human interaction and communication support

Sensory evaluation of expressive actions of InterRobot for h...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： T. Watanabe M. Okubo Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan Japan Science and Technology Japan Science and Technology Agency-CREST Japan

InterRobot is the speech driven embodied interaction robot which is developed for supporting human interaction and communication by generating the expressive actions and motions coherently related to human speech input. Talkers can share the context of communication by mutual embodied entrainment via InterRobot. This paper evaluates the proposed InterRobot interaction model. Then, the effectiveness of InterRobot expressive actions in interaction is demonstrated by the sensory evaluation of paired comparison under three conditions of simple nodding, multiple nodding and the whole body motion. Actual applications of InterRobot to human interface are also demonstrated for developing a new embodied communication industry.

关键词： Speech analysis Human robot interaction Biological system modeling Speech synthesis Context Face computer science systems engineering and theory Arm Communication industry

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Nonlinear Hilbert adjoints: properties and applications to Hankel singular value analysis

Nonlinear Hilbert adjoints: properties and applications to H...

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American Control Conference (ACC)

作者： W.S. Gray J.M.A. Scherpen Department of Electrical and Computer Engineering Old Dominion University Norfolk VA USA Faculty of Information Technology & System Department of Electrical Engineering Delft University of Technology Delft Netherlands

The notion of an adjoint operator for a nonlinear mapping has few interpretations in the literature. In this paper a nonlinear Hilbert adjoint operator is proposed. It is shown to unite several existing concepts and p... 详细信息

关键词： Hilbert space State-space methods Application software Vectors

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The variable neighborhood CNN

The variable neighborhood CNN

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： M. Namba S. Takatori H. Kawabata Z. Zhang Faculty of computer science and system engineering Okayama Prefectural University Soja Okayama Japan Industrial Technology Center of Okayama Prefecture (ITCO) Haga Okayama Japan

The cellular neural network (CNN) has been widely used for associative memory. However, it has a problem called indeterminate cell. We describe this problem and propose the variable neighborhood CNN. As a result, we h... 详细信息

ISBN: (纸本)0780366859

关键词： Cellular neural networks Equations computer science systems engineering and theory Circuit noise Feature extraction Liver diseases Analog circuits

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Trace-level isotope concentration-ratio measurement /sup 12/CO/sub 2/-/sup 13/CO/sub 2/ laser system

Trace-level isotope concentration-ratio measurement /sup 12/...

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Pacific Rim Conference on Lasers and Electro-Optics (CLEO/Pacific Rim)

作者： T. Matsushima J. Kawanabe H. Maekawa S. Saimi T. Sueta Y. Cho Nara National College of Technology Yamato-Koriyama Nara Japan Aloka Company Limited Oume Japan Setsunan University Neyagawa Japan Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan

For high sensitivity measurements of isotope concentration-ratios of trace-level gas mixtures, particularly including carbon dioxide isotopes, we tested a /sup 12/CO/sub 2/-/sup 13/CO/sub 2/ composite laser system containing intracavity absorption-cells. Sensitivity enhancement obtainable by the intracavity modulation absorption-cell with synchronous detection scheme was examined theoretically. /sup 13/CO/sub 2/ in atmospheric air was readily detected and minimum detectable concentration by the present system was estimated to be 70 ppb.

关键词： Isotopes Geologic measurements Absorption Power lasers Laser tuning Carbon dioxide Gas lasers Signal detection Particle measurements Laser theory

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Several results on de Morgan algebra and Kleene algebra of fuzzy logic

Several results on de Morgan algebra and Kleene algebra of f...

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： Jianming Deng M. Umano T. Oda Y. Uno Department of Computer Science and Engineering South-East University Nanjing China Department of Mathematics and Information Sciences College of Integrated Arts and Sciences Osaka Prefecture University Japan Department of Marketing and Information System Faculty of Management and Information Science Aichi Institute of Technology Japan

We present several results on de Morgan algebras and Kleene algebras of fuzzy logic. The main results include (1) a necessary and sufficient condition for a de Morgan algebra to be a Kleene algebra, (2) equivalence of some expressions, (3) some properties about de Morgan algebras with sup W/sup +/ and inf W/sup -/, (4) some properties of the de Morgan algebras which satisfy certain special conditions, (5) a method to obtain all fixed points of a de Morgan algebra and (6) extensions of some theorems on complete de Morgan algebras that have fixed points to the general case.

关键词： Algebra Fuzzy logic Sufficient conditions Lattices Mathematics Educational institutions Art computer science Management information systems Information management

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Feedback control for electromagnetic vibration feeder (application of two-degrees-of-freedom proportional plus integral plus derivative controller with nonlinear element)

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JSME International Journal, Series C: Mechanical systems, Machine Elements and Manufacturing 2001年第1期44卷 44-52页

作者： Doi, Tomoharu Yoshida, Koji Tamai, Yutaka Kono, Katsuaki Naito, Kazufumi Ono, Toshiro Department of Systems and Control Engineering Faculty of Engineering Osaka Prefectural College of Technology 26-12 Saiwai-cho Neyagawa Osaka 572-8572 Japan Department of System Engineering Faculty of Computer Science and System Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Research and Development Department Ishida Co. Ltd. 959-1 Shimomagari Ritto-cho Kurita-gun Shiga 520-3026 Japan Department of Mechanical Systems Engineering College of Engineering Osaka Prefecture University 1 1 Gakuen-cho Sakai Osaka 599-8531 Japan

An electromagnetic-type vibratory feeder of is a typical transportation device used in automatic weighers. As existing feeders are driven by feedforward control, the so-called "firing angle control", the driver cannot negate sudden disturbances. In this study, we consider applying a feedback control for such a feeder system. First, we give the two details of modelings for the vibration part and for the electromagnetic force part. Next, a feedback control system is constructed for the electromagnetic vibration feeder for which we propose a two-degrees-of-freedom proportional plus integral plus derivative (PID) controller with nonlinear elements. Next, we apply the feedback control to the feeder with a standard trough. Finally, we consider a method compatible with many varieties of troughs by adjusting a nonlinear element. On the basis of the results of some experiments, we confirm that the two-degrees-of-freedom PID control is more effective than the conventional firing angle control.

关键词： Mechanics

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