Transactions of the Society of Instrument and Control Engineers
Online ISSN : 1883-8189
Print ISSN : 0453-4654
ISSN-L : 0453-4654
Volume 47, Issue 8
Displaying 1-4 of 4 articles from this issue
Paper
Control
Systems and Information
  • Makoto YOSHIDA, Yoshihiro MIYAKE, Nobuhiro FURUYAMA
    2011 Volume 47 Issue 8 Pages 337-345
    Published: 2011
    Released on J-STAGE: January 21, 2012
    JOURNAL FREE ACCESS
    We studied the process of information integration through observing the pragmatics and the dynamics of conversations between two people toward a consensus. We analyzed the conversations from both the pragmatics and the dynamics side. From the pragmatic perspective, the temporal development of pragmatics regarding their consensus was analyzed using conversational analysis and subjective evaluation. On the other hand, from the dynamical perspective, the temporal development of response time of utterance was analyzed using correlation analysis. As results, their typical developments as follows were clarified. The stages in pragmatics regarding a consensus were taking turns alternately toward a consensus. The subjective evaluated values on consensus increased toward the end of the conversation. The response times between two people were synchronized toward a consensus. These results indicate that both pragmatics and dynamics side have features of synchronization. It is suggested this feature plays typical feature for consensus building in this experiment.
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Industrial Application
  • —Damping Control Method by Using Inverse Model of Sloshing—
    Masafumi HAMAGUCHI, Takao TANIGUCHI
    2011 Volume 47 Issue 8 Pages 346-351
    Published: 2011
    Released on J-STAGE: January 21, 2012
    JOURNAL FREE ACCESS
    This paper proposes a damping control of sloshing in a cylindrical container with a swing-type active vibration reducer on a wheeled mobile robot (WMR). The WMR runs along a straight path on a horizontal plane. The container is mounted on the active vibration reducer. A laser displacement sensor is used to observe the liquid level in the container. The container can be tilted in the running direction by the active vibration reducer. A sloshing model is obtained from a spherical pendulum-type sloshing model, which approximately expresses (1, 1)-mode sloshing. The sloshing model is used to design a damping control system. The control system of the active vibration reducer is designed with an inverse model of sloshing and an optimal regulator with a Kalman filter. The WMR is driven by an acceleration pattern designed with an input shaping method. The usefulness of the proposed method is demonstrated through simulation and experimental results.
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