Katsuhisa Furuta

Otsu Red Cross Hospital

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Compatibility of Observer to Variation of Plant Parameters

Transactions of the Society of Instrument and Control Engineers (1979)

Katsuhisa Furuta Shigeyasu Kawaji

The compatibility of an observer to a plant is comprehensively discussed assuming that the plant changes its characteristics. The class of plants compatible to the given observer is characterized both in the case that the observer is used in the open-loop systems and in the case that it is used in the feedback systems as a regulator.It is shown that the observer installed in the feedback systems is more robust than the one in the open-loop systems.

Observer (physics)

Plant system

Feedback loop

10.9746/sicetr1965.15.565

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Citations (3)

A Study of Parameter Estimation of Stochastic Volatility Model

제어로봇시스템학회 국내학술대회 논문집 (1991)

Makiko Tsukui Katsuhisa Furuta

Stochastic modelling

Source

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Citations (0)

Alternative solution of discrete-time Kalman filter

Systems & Control Letters (1994)

Katsuhisa Furuta

Alpha beta filter

10.1016/0167-6911(94)90086-8

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Citations (7)

Position Control of a Double Inverted Pendulum on an Inclined Rail

Transactions of the Society of Instrument and Control Engineers (1979)

Hiroyuki Kajiwara Kazuhiro Kosuge Katsuhisa Furuta

On the basis of the optimal servo theory, this paper discusses the design of the position control system for a double inverted pendulum on an inclined rail. The controller is implemented by a minicomputer to stabilize the double inverted pendulum and can make its position change according to a specified command suppressing the effect of the constant disturbance caused by inclining the rail. The successful experimental results have been obtained and the effectiveness of the state space approach has been shown in the design of the servo controller for a system with constant disturbances and parameter variations.

Position (finance)

Servomechanism

Minicomputer

Constant (computer programming)

Pendulum

10.9746/sicetr1965.15.873

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Citations (5)

State Feedback Law with Specified Stability Margin

Transactions of the Society of Instrument and Control Engineers (1985)

Ryou KONDO Shinji Hara Katsuhisa Furuta

Margin (machine learning)

10.9746/sicetr1965.21.1345

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Citations (0)

Journal of the Robotics Society of Japan (2000)

Shigeo Hirose Katsuhisa Furuta Tsutomu Mita

10.7210/jrsj.18.1061

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Citations (1)

A Complex System Approach to Root Clustering in Separate Regions

Transactions of the Society of Instrument and Control Engineers (1993)

Masanobu Koga Katsuhisa Furuta

We define complex-systems of degree n, corresponding to real-systems of degree 2n, whose inputs, outputs, states, and parameters are all complex values. The introduction of such complex-systems makes it more suitable to treat not only the robust control but also the pole assignment in separate regions. The relation between the feedback-control law of the real-system and that of the corresponding complex-system is derived. A feedback-control law to assign all the poles in the prespecified separate regions is determined by using the complex-system.

Degree (music)

Complex system

Root (linguistics)

Feedback Control

10.9746/sicetr1965.29.326

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Citations (0)

Elucidation of skilled human controller on stabilization with voluntary motion

Keiichi Kurihara Satoshi Suzuki Katsuhisa Furuta

This paper introduces an experimental analysis to elucidate catholic characteristic of human skill on machine manipulation for realization of a Human Adaptive Mechatronics (HAM). HAM is a novel concept of intelligent mechanical systems that adapt themselves to the user's skill and assist to improve the user's skill. Using a force-feedback haptic device and a real-time computer graphics of a virtual pendulum, we acquired data until human was skilled, and tried to extract human control axiom by data-analysis and simulation checking. It was confirmed that skilled person stabilized a virtual pendulum by forecasting it's motion by using the velocity information and switched one's controllers according to a positional limit of an input device.

Realization (probability)

Human motion

Pendulum

10.1109/cacsd-cca-isic.2006.4776709

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Citations (7)

Locomotion generation of friction board with an inclined slider

Yoshihiro Suzuki Hongyi Li Katsuhisa Furuta

There are various ways to generate the locomotion and moving systems. In this research, we design a new moving system without wheels, named friction board system, that realizes locomotion with internal actuated mass mounted on an inclined slider of a board. Directional locomotion can be generated by the motion of the internal mass on the slider and friction between the board and the horizontal ground. By inclining the slider, the friction board system can control the friction force and realize more effective locomotion. First, dynamic equations of the friction board system are derived. Then a feedback controller for locomotion is devised using LQ method. Finally the locomotion generation law of the friction board system is verified experimentally.

10.1109/cdc.2007.4434269

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Citations (8)

On Linearization with Transformation of the Time Scale

Transactions of the Society of Instrument and Control Engineers (1986)

Mitsuji Sampei Katsuhisa Furuta

Linearization

10.9746/sicetr1965.22.1030

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Citations (1)