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Yoshihito Akimoto, Naoki Mori, Keinosuke Matsumoto
Session ID: E3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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Hiroki Matsuno, Shingo Kitamura, Naoki Mori, Keinosuke Matsumoto
Session ID: E3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Authors have proposed Day-Trade Agent Framework (DTAF) for evolution of day trade agent.
The Genetic Programming (GP) has been utilized to evolve day trade agent in DTAF, there are
few researches of analyzing the internal nodes of GP in DTAF.
In this paper, the authors proposed a dynamic nodes changing system for GP and analyzed features
of GP nodes.
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Tomoki Mizuno, Keinosuke Matsumoto
Session ID: E3-5
Published: 2009
Released on J-STAGE: January 22, 2010
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Model Driven Development attracts attention in the field of information systems
development because it can flexibly correspond to the changes in specifications and implementation
technologies. On the other hand, Model Theory Approach is proposed as a system development
methodology. It models information systems as some automatons. However, it is difficult to design
automatons directly. We make use of diagrams of UML as models. This research proposes a method
of developing Transaction Processing System (TPS) that combines Model Theory Approach with
Model Driven Development and shows that the amount of the development of TPS can be reduced
by applying the proposal method.
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Ryusuke Tomita, Keinosuke Matsumoto
Session ID: E3-6
Published: 2009
Released on J-STAGE: January 22, 2010
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Model Driven Development (MDD) is paid to attention to try to separate business logics and implement technologies. On the other hand, Design Patterns are advocated because these designs are used importantly and repeatedly in object-oriented development.
This research aims at reduction in the effort of development and improvement of the readability of models using various design patterns with MDD.
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Guisheng Zhai
Session ID: F3-1
Published: 2009
Released on J-STAGE: January 22, 2010
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In this paper, we establish a unified approach to
stabilility and L2 gain analysis for switched linear descriptor
systems under arbitrary switching in both continuous-time and
discrete-time domains. The approach is based on common
quadratic Lyapunov functions incorporated with linear matrix
inequalities (LMIs). We show that if there is a common
quadratic Lyapunov function for stability of all subsystems,
then the switched system is stable under arbitrary switching.
Furthermore, we show that if there is a common quadratic
Lyapunov function for stability and certain L2 gain of all
subsystems, then the switched system is stable and has the
same L2 gain under arbitrary switching. The analysis results
are natural extensions of the existing results for switched linear
state space systems.
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Yuta Watanabe, Shigemasa Takai
Session ID: F3-2
Published: 2009
Released on J-STAGE: January 22, 2010
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In this paper, we consider a problem of synthesizing a partial observation supervisor that enforces opacity in a maximally permissive way. Under some assumptions on observable events and uncontrollable events, we present a formula for computing the supremal closed, controllable, observable, and opaque sublanguage of the generated language of the system.
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Yuichi Tazaki, Jun-ichi Imura
Session ID: F3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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This paper presents a method for the design of discrete abstract models of nonlinear continuous-state systems
under the framework of approximate bisimulation.
First, the notion of quantizer embedding, which transforms a continuous-state system into a finite-state system,
is extended to a variable-resolution setting.
Next, it will be shown that the series of conditions for approximate bisimulation can be converted into a set of
linear inequalities, which can be verified by a linear programming solver.
From this result, we obtain an algorithm that repeatedly refines a variable-resolution mesh until
approximate bisimulation with a prescribed error specification is achieved.
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Koichi Kobayashi, Jun-ichi Imura, Kunihiko Hiraishi
Session ID: F3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Takuto Miyagi, Tatsushi Yamasaki
Session ID: F3-5
Published: 2009
Released on J-STAGE: January 22, 2010
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Recently, a many-core processor, which has a large number of independent cores, has been developed. For utilizing such processors,
it is important to allocate cores for each concurrent task adequately.
In this study, we propose a core allocation method based on the market-oriented programming which is one of the resource allocation methods using market mechanism.
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Koki Kayama, Yuiti Ariga, Keiji Watanabe, Sigeru Endo
Session ID: G3-1
Published: 2009
Released on J-STAGE: January 22, 2010
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Yoshiro Hamada
Session ID: G3-2
Published: 2009
Released on J-STAGE: January 22, 2010
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This paper proposes an algorithm for designing gain scheduled state feedback controllers with a minimal number of grid points. A derived gain is composed of piecewise-linear functions of a scheduling parameter, which is desirable for implementability considering the often limited processing resources of embedded control computers. The algorithm is iterative: at each step a scheduled gain is designed, the ``importance'' of each grid point is evaluated, and the least important grid point is eliminated. As a result, the derived gain is expected to have a minimal number of grid points. An illustrative example shows how the gain is designed by the proposed algorithm.
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Takumi Kimura, Tomoyuki Nagashio, Takashi Kida
Session ID: G3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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A class of mechanical systems is generally described by a second order linear matrix differential equation after linearization. It is known that a robust static output feedback controller exits based only on the symmetry of the coefficient matrices. In this paper, we extend it to the linear time varying collocation system, and propose an optimal design method of feedback gain matrices. The effectiveness is verified through simulations of a launching rocket model.
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Shin Nakayama, Hiroaki Kobayashi
Session ID: G3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Yoshifumi Okuyama
Session ID: G3-5
Published: 2009
Released on J-STAGE: January 22, 2010
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The physical parameters of controlled systems are uncertain and are
accompanied by nonlinearity.
Moreover, the characteristic of discretized controllers is usually
expressed by stepwise and sectorial nonlinearity.
The dynamics of discretized control systems is, therefore, represented by segment polynomial models.
This paper evaluates the robust stability of discretized control systems based on the existing area of characteristic roots (i.e., eigenvalues) on a $z$-plane.
By applying a division algorithm to a set of the four corners of segment polynomials, a sufficient condition for the roots area,
which is enclosed by a specified (circular) contour in a unit circle, is given.
As a result, the discrimination of the roots area by finite calculations becomes possible.
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Hisashi Yokoyama, Yuzo Ohta
Session ID: G3-6
Published: 2009
Released on J-STAGE: January 22, 2010
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In this paper, we analyze stability of nonlinear uncertain systems using Piecewise Quadratic Lyapunov Functions (PQLFs), which has been used
mainly to analyze stability of piecewise linear systems. And, it seems that PQLFs are not effective for stabilty analysis of uncertain systems.
In this paper, we propose a method to construct of PQLFs for uncertain systems with polytopic uncertainties by adding new dividing hyperplanes to increase the freedom. The usefulness of the method is demonstrated by using some examples.
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Sho Kawanari, Masatoshi Ogawa, ikun Yeh, Harutoshi Ogai
Session ID: H3-1
Published: 2009
Released on J-STAGE: January 22, 2010
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Correlation-based Just-In-Time (CoJIT) Modeling has proposed, and it can create local regression model with correlation between variables. However, related neighbor data selecting method for CoJIT Modeling may have a problem when we increase the number of samples per data set. In this paper, we propose an improved method. This method selects and merges two or more data sets. The advantages of the proposed selecting method are demonstrated through a case study of an industrial furnace process.
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Shin'ya Inoue, Akira Kitamura, Tomoyuki Maeda, Makishi Nakayama
Session ID: H3-2
Published: 2009
Released on J-STAGE: January 22, 2010
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Yoshimasa Ochi, Hiroyuki Kondo
Session ID: H3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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Masayoshi Ooigawa, Mituhiko Araki, Masaru Katayama
Session ID: H3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Satoshi Bessyo, Masayoshi Doi, Yasuchika Mori
Session ID: H3-5
Published: 2009
Released on J-STAGE: January 22, 2010
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There are many MIMO systems in the chemical plants of the manufacturing, and the plant includes various time delays. The GMVC achieves the good control performance in the case of including time delay. The proposed 2-degree-of-freedom GMVC for MIMO system improves performances of following the reference signal and loading disturbance respectively. Furthermore, a skeltal matrix, which applies to the controlled system, is effective in decoupling the interference of MIMO system.
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Youki Matsumura, Nobukazu Iguchi
Session ID: I3-1
Published: 2009
Released on J-STAGE: January 22, 2010
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The purpose of this study is to develop a sensor data sharing system using Hybrid P2P in order to share those sensor data that are dispersedly managed at multi points. The system is constructed of an Index server which manages metadata of sensors, and Nodes which manage sensor data.By using Hybrid P2P type, it has come to realize a sharing of sensor data between Nodes that are dispersedly managed.
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Shoji Mizobuchi, Yoshiaki Shiraishi, Nobukazu Iguchi, Sonoyo Mukai
Session ID: I3-2
Published: 2009
Released on J-STAGE: January 22, 2010
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This paper describes a sensor information sharing system that shares and creates sensor information using weblog media. The aim of the system is to trigger a loop of creating and sharing of sensor information and circulate it spirally. In order to achieve this aim, the system equips functions supporting induction and acquirement of sensor information. The evaluation of the system showed that the functions achieved the desired effect.
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Yasunori Saito, Takanobu Suzuki, Kazuki Kobayashi, Kin-ichi Kobayashi, ...
Session ID: I3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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A field server (FS) network has been working in Obuse-town, Nagano Prefecture. There are four field servers. Each of them is placed at a grape farm, a chestnut farm, a paprika house, and the ROKUJI-SANGYO Center, respectively. We show the present status of the FS network and discuss some ideas for effective use of FS data and future plans
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Yasunori Saito, Kazuki Kobayashi
Session ID: I3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Application of optical technology in the agricultural-related industry is proposed and called "Optical Farming". THe concept of Optical Farming can be found everywhere from agricultural farms to tables/forks at home through distribution, market, shops and others.
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Masayoshi Kamijo, Hideki Kihara
Session ID: J3-1
Published: 2009
Released on J-STAGE: January 22, 2010
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The stress of treatments in the neonatal intensive care unit (NICU) has been considered to affect autonomic nerve activity and motions in premature infants. In order to improve the treatments in NICU, we surveyed the actual environment in NICU, quantitatively. In this paper, we measured heart rate (HR) and motions of 8 premature infants at cry that other infants. As the results, we clarified that the autonomic nerve system became active depending on the cry of other infants. We found that the motion indication was different depending on the premature infants. from the analysis of motions. Therefore, motions by stimulation were different in each premature infant. Importance of treatment according to individual premature infants was suggested.
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Yuta Kurotaki, Hisao Shiizuka
Session ID: J3-2
Published: 2009
Released on J-STAGE: January 22, 2010
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It is very important to consider feelings of music in music therapy. However, there are only few study examples about the effect of the rhythm patterns on persons. The evaluation with listening in this paper concerning the affective character of rhythm patterns is done,applied possibility to music therapy is examined.
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Ryuhei Otsuka, Hisao Siizuka
Session ID: J3-3
Published: 2009
Released on J-STAGE: January 22, 2010
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Kei MASAKI, Hisao SHIIZUKA
Session ID: J3-4
Published: 2009
Released on J-STAGE: January 22, 2010
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This paper attempted to extract the factors of Decision Making Process of Mobile Service. Improvement of a Howard Decision Making Modeling, we model a consumer registration behavior of mobile services. Figuring out the s these factors of Decision Making Process, we could clear the buying behavior in chronological order and propose the available model applying to commerce. This paper especially focuses on the Train Route Finder Site for mobile and extracts the decision making factor.
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Yoshiki Kinoshita
Session ID: S1
Published: 2009
Released on J-STAGE: January 22, 2010
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Hiroki Okada, Yoshio Mogami, Norihiko Ono, Norio Baba, Kenji Ikeda
Session ID: B4-1
Published: 2009
Released on J-STAGE: January 22, 2010
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Kazuhisa OBA, Jun-ichi KUSHIDA, Katsuari KAMEI
Session ID: B4-2
Published: 2009
Released on J-STAGE: January 22, 2010
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Jun-ichi Kushida, Kazuhisa Oba, Katsuari Kamei
Session ID: B4-3
Published: 2009
Released on J-STAGE: January 22, 2010
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Differential evolution (DE) is a population-based stochastic search technique for solving optimization problems in the continuous space.
DE is one of evolutionary algorithms and similar to Genetic Algorithm (GA). In DE, individuals are created by differential operation which is differential replacement of individuals.
Recently, some DE approaches for binary spaces are proposed.
Binary DE (BDE) is a modified version of DE which operates
in the binary search space.
In this paper, we classify generation alternation model of BDE based on the characteristics of selection for reproduction and selection for survival.
Through the results of simulation, we discuss the characteristics of the generation alternation model of BDE.
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Satoko Yamakawa, Kuniharu Yoshimoto
Session ID: B4-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Recently, torrential rains are observed all over Japan and urban areas often suffer from floods. The effective use of current equipments is expected to cope with these floods. However, the drain pumps are still operated according to the experiences at many sewage facilities. The purpose of our study is to make an effective operation plan of drain pumps based on predicted inflow. The optimization problem is formulated and the obtained plans are evaluated in numerical simulations by using actual observed data.
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Akimine Nishikori
Session ID: B4-5
Published: 2009
Released on J-STAGE: January 22, 2010
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Atsushi Yanagawa, Hideaki Komiya, Shinji Wakui
Session ID: C4-1
Published: 2009
Released on J-STAGE: January 22, 2010
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In the field of positioning control, positioning control with air pressure actuators is proposed instead of with magnetic actuators. In our previous presentation whose title is high speed positioning for pneumatic system, intended tuning parameter and high speed positioning are shown. However, repeatability cannot be conformed due to flow and mechanical disturbances. Therefore, this paper presents the compensator method of flow disturbance named flow disturbance observer and PDD2 control with flow disturbance to improve the response of target value. The repeatability of PDD2 control with flow disturbance is also presented.
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Hideaki Komiya, Atsushi Yanagawa, Shinji Wakui
Session ID: C4-2
Published: 2009
Released on J-STAGE: January 22, 2010
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In the field of positioning control,air pressure actuators is proposed instead of magnetic actuators because magnetic can not use for electron beam exposure apparatus due to the magnetic leak and heat generation. However air pressure actuators have the problem that is an inactive response with air's compressibility. Some researches have not utilized the pressure as feedback.
Therefore, this paper presents the positioning control methods of PDD2 with pressure feedback, re-duction FF, and parallel FF to remove the Mechanical vibration of positioning.
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Habiburahman Shirani, Atsushi Yanagawa, Shinji Wakui
Session ID: C4-3
Published: 2009
Released on J-STAGE: January 22, 2010
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Pneumatic type anti-vibration apparatuses are used in the field of semiconductor manufacturing and precision measurement. The variation of the supplied air pressure from the air compressor causes the position fluctuation of the isolated table. A control method using a voice coil motor (VCM) as the actuator is proposed in this study to control the position fluctuation of the isolated table caused by the supplied air pressure. The feedforward compensator control scheme is used to provide a proper controlled signal to the VCM. According to the control signal, the VCM exerts the driving force in the opposite direction of the air spring expansion or compression to suppress the vibration of the isolated table.
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Keisuke Sakuma, Shinji Wakui
Session ID: C4-4
Published: 2009
Released on J-STAGE: January 22, 2010
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We propose two methods to improve USM positioning wave form. These two methods are based on PI compensator of classical control theory. This merit is simple control system without necessity of complex one. In addition these have effect of suppressing overshoot and shortening positioning time. One method is only proportional element at initial rise of positioning. Then integral element throws in the middle of positioning. Another method is input shaping filter. Effect of this filter is mainly suppressing overshoot. Finally these two methods combine each others. This method improves positioning time additionally.
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(1st report: Basic Principles)
Takaaki Kato, Takeshi Mizuno, Masaya Takasaki, Yuji Ishino
Session ID: C4-5
Published: 2009
Released on J-STAGE: January 22, 2010
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Rencheng ZHENG, Kimihiko NAKANO
Session ID: D4-1
Published: 2009
Released on J-STAGE: January 22, 2010
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Kimihiko Nakano, Masanori Ohori, Atsushi Tagaya
Session ID: D4-2
Published: 2009
Released on J-STAGE: January 22, 2010
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The authors propose to apply a self-powered active vibration control, which is a control system producing control force using energy generated from the vibration, to active vibration control of a structure using a piezoelectric transducer. In the previous studies, it was carried out with an electromagnetic actuator however the piezoelectric actuator is also a major type of the actuator in the field of the structural vibration. Assuming the structure is a simply supported beam, the authors derive a linear state space equation to design an active controller and present an equation to estimate the power balance. The results of the numerical simulations and the experiments show the active control system suppresses vibration better than a passive control system under the condition that the amount of the generated power exceeds that consumed.
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Hiroki Nakamura, Kimihiko Nakano
Session ID: D4-3
Published: 2009
Released on J-STAGE: January 22, 2010
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The paper introduces the new method to estimate vertical gauge irregularity from accelerations of the bogie using ICA (Independent Component Analysis) and examines the performance through the numerical simulation of a travelling bogie. The authors propose to apply ICA to monitor the railway system. It is a method utilized mainly in the field of biophysics to identify the signal sources from the multi data sets of the mixed signals. Only the vertical and pitch motion of the bogie are considered and the dynamics of the car body is neglected. To simulate the sensor noises, the white noises are added to the accelerations. The velocities and the displacements are calculated by integrating and double integrating the observed accelerations, respectively. They are treated as parts of the observed data sets as well as the accelerations. By using ICA, the similar shape to the input irregularity is obtained, and it is proven that the ICA is effective to monitor the railway system.
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Shinsuke ASAHARA, Yasutaka TAGAWA, Masashi YASUDA
Session ID: D4-4
Published: 2009
Released on J-STAGE: January 22, 2010
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Yasufumi MORIIE, Yuki URANISHI, Hiroshi SASAKI, Yositsugu MANABE, Kuni ...
Session ID: E4-1
Published: 2009
Released on J-STAGE: January 22, 2010
CONFERENCE PROCEEDINGS
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Yoshimitsu Kobayashi, Minoru Sasaki, Masayuki Okugawa, Tatsuya Motobay ...
Session ID: E4-2
Published: 2009
Released on J-STAGE: January 22, 2010
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Masahiro Tanaka
Session ID: E4-3
Published: 2009
Released on J-STAGE: January 22, 2010
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We are developing a pedestrian counting system using laser range scanners. Two range scanners are located at high positions at the corridor edge, and set to scan horizontally in parallel with the gap of 20cm or so.
Each sensor detects the end of persons' passing, and the system associates them between two sensors by using multiple kinds of information.
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Masaya Akiyama, Takashi Kai, Shinji Wakui
Session ID: E4-4
Published: 2009
Released on J-STAGE: January 22, 2010
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In the field of vibration control, accelerometers have been used. In stead of this kind of sensors, displacement sensors are convenient for vibration control. We previously proposed the sensor characterized by using calibration coil. We used vertical sensor but this sensor has a problem that is effected by coil springs for compensator of gravity. This time, we use a horizontal sensor that has no coil springs. We proposed a design method of frequency characteristic of the sensor based on the state feedback. This time, we inspect that the method is correct or not.
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manabu yamada, motoki kanada, yasutaka ichikawa, yasuyuki funahashi
Session ID: F4-1
Published: 2009
Released on J-STAGE: January 22, 2010
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Yosuke Inoue, Akihiko Yoneya
Session ID: F4-2
Published: 2009
Released on J-STAGE: January 22, 2010
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In this paper, a method to control the yaw angle of an unicycle robot is proposed and the effectiveness of this approach is verified by simulation. For the mechanism of the unicycle robot, the robot has a fly-wheel actuator to control the roll angle and a motor to drive the wheel. The yaw angle is controlled with an underactuated scheme. In addition, a method for the trajectory tracking control is proposed.
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Takuma Sudo, Yuh Yamashita
Session ID: F4-3
Published: 2009
Released on J-STAGE: January 22, 2010
CONFERENCE PROCEEDINGS
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