This paper discusses the use of genetic algorithms (GA) in a perimeter security CAD system (PSCAD). In this paper we compare the performance of a PSCAD system that uses exhaustive search for optimization with one that...
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This paper discusses the use of genetic algorithms (GA) in a perimeter security CAD system (PSCAD). In this paper we compare the performance of a PSCAD system that uses exhaustive search for optimization with one that uses a genetic algorithm.
Ultrasonic sensors are often utilized for perceiving the outside world. In this paper, we propose the construction of a new ultrasonic recognition system for identification of transparent object. The proposed recognit...
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ISBN:
(纸本)4907764278
Ultrasonic sensors are often utilized for perceiving the outside world. In this paper, we propose the construction of a new ultrasonic recognition system for identification of transparent object. The proposed recognition system consists of an ultrasonic transmitter, an ultrasonic receiver, and a recognition unit. The system's receiver is made up of plural ultrasonic sensor array. The receiver outputs the peak values and the positions of ultrasonic sound pressure waves. Their values and positions are input in to recognition unit, which consists of the neural networks for object identification and the neural networks (NNs) for the measurement of the object's position. We have designed and built a prototype system for identification and position measurement for polyethylene terephthalate bottle (Pet bottle). We tested this system by attempting to identify and measure the positions of seven kinds of Pet bottle. The experimental results showed perfect identification and an accuracy of about 5mm.
We propose an electric scanning laser rangefinder based on controlling the intensity of plural light sources. The method first projects two different-powered light patterns with almost uniform intensity, and a parabol...
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We propose an electric scanning laser rangefinder based on controlling the intensity of plural light sources. The method first projects two different-powered light patterns with almost uniform intensity, and a parabolic light pattern with a single peak which combines the outputs of each light source. From our experimental results, we conclude that the proposed electric scanning approach is effective for the 3D surface measurement of Lambertian objects with various colour patterns and specular objects.
Current trends in scientific collaboration focus on developing effective Web-based communication tools, such as instant messaging (i.,e IM) or video-conferencing. One objective is to provide informal communication opp...
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An approach and method to integrate virtual engineering and robot systems is introduced. The main idea is extended application of the principle of shape aspect that is well-proven in part modeling. Shape intensive rob...
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An approach and method to integrate virtual engineering and robot systems is introduced. The main idea is extended application of the principle of shape aspect that is well-proven in part modeling. Shape intensive robot system is engineered by using of shape modeling. Shapes are connected by special aspects in a shape aspect oriented model system. The main purpose of the proposed approach and method is better communication between product modeling and robot related engineering. Associativity definitions integrate part level functions into product level functions while behaviors and adaptivities are also handled as aspects. Paper starts with introduction and comparison of classical industrial product modeling and the proposed integrated product and robot system modeling. Following this, extended application of shape aspects and definition of connective aspects are detailed. Finally, implementation in open architecture industrial modeling systems is explained and future work is outlined.
Home service robots increasingly need to provide diverse and complex services such as cooking, sweeping and dishwashing. These services inevitably require a number of software functions simultaneously. For example, th...
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Home service robots increasingly need to provide diverse and complex services such as cooking, sweeping and dishwashing. These services inevitably require a number of software functions simultaneously. For example, the cooking service requires an arm manipulation function to grasp dishes, an navigation function to move around, an object recognition function to find foods, an speech recognition function to understand user requirements, and etc. However, when the services and software functions are executed simultaneously in a robot without run-time software management, those may cause malfunction due to resource contention. In this paper, we describe the situation that causes resource contention and formulate architecture-based adaptation in robot software systems. Based on the formulation we proposed an approach to dynamic robot software management that effectively uses robot computing resources.
We describe complementary iconic and symbolic representations for parsing the visual world. The iconic pixmap representation is operated on by an extensible set of "visual routines" (Ullman, 1984;Forbus et a...
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作者:
Kwang-Hyun ParkZeungnam BienDivision of EE
Department of EECS Korea Advanced Institute of Science and Technology 373–1 Kusong-dong Yusong-gu Taejon 305–701 Korea. Zeungname Bien:received the B.S. degree in electronics engineering from Seoul National University
Seoul Korea in 1969 and the M.S. and Ph.D. degrees in electrical engineering from the University of Iowa Iowa City Iowa U.S.A. in 1972 and 1975 respectively. During 1976–1977 academic years he taught as assistant professor at the Department of Electrical Engineering University of Iowa. Then Dr. Bien joined Korea Advanced Institute of Science and Technology summer 1977 and is now Professor of Control Engineering at the Department of Electrical Engineering and Computer Science KAIST. Dr. Bien was the president of the Korea Fuzzy Logic and Intelligent Systems Society during 1990–1995 and also the general chair of IFSA World Congress 1993 and for FUZZ-IEEE99 respectively. He is currently co-Editor-in-Chief for International Journal of Fuzzy Systems (IJFS) Associate Editor for IEEE Transactions on Fuzzy Systems and a regional editor for the International Journal of Intelligent Automation and Soft Computing. He has been serving as Vice President for IFSA since 1997 and is now Chief Chairman of Institute of Electronics Engineers of Korea and Director of Humanfriendly Welfare Robot System Research Center. His current research interests include intelligent control methods with emphasis on fuzzy logic systems service robotics and rehabilitation engineering and large-scale industrial control systems. Kwang-Hyun Park:received the B.S.
M.S. and Ph.D. degrees in electrical engineering and computer science from KAIST Korea in 1994 19997 and 2001 respectively. He is now a researcher at Human-friendly Welfare Robot System Research Center. His research interests include learning control machine learning human-friendly interfaces and service robotics.
It has been found that some huge overshoot in the sense of sup-norm may be observed when typical iterative learning control (ILC) algorithms are applied to LTI systems, even though monotone convergence in the sense of...
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It has been found that some huge overshoot in the sense of sup-norm may be observed when typical iterative learning control (ILC) algorithms are applied to LTI systems, even though monotone convergence in the sense of λ-norm is guaranteed. In this paper, a new ILC algorithm with adjustment of learning interval is proposed to resolve such an undesirable phenomenon, and it is shown that the output error can be monotonically converged to zero in the sense of sup-norm when the proposed ILC algorithm is applied. A numerical example is given to show the effectiveness of the proposed algorithm.
In this paper, we proposed an efficient method of converting speech codec formats between GSM 06.20 and G.729. Unlike a classic tandem method, proposed method executes transformation of coding parameters without the u...
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In this paper, we proposed an efficient method of converting speech codec formats between GSM 06.20 and G.729. Unlike a classic tandem method, proposed method executes transformation of coding parameters without the use PCM that allows reducing computational complexity and coding delay.
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