Search Sites

Transactions of the Institute of Systems, Control and Information Engineers Vol. 9 (1996), No. 12

ISIJ International
belloff
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668
Publisher: THE INSTITUTE OF SYSTEMS, CONTROL AND INFORMATION ENGINEERS (ISCIE)

Backnumber

  1. Vol. 37 (2024)

  2. Vol. 36 (2023)

  3. Vol. 35 (2022)

  4. Vol. 34 (2021)

  5. Vol. 33 (2020)

  6. Vol. 32 (2019)

  7. Vol. 31 (2018)

  8. Vol. 30 (2017)

  9. Vol. 29 (2016)

  10. Vol. 28 (2015)

  11. Vol. 27 (2014)

  12. Vol. 26 (2013)

  13. Vol. 25 (2012)

  14. Vol. 24 (2011)

  15. Vol. 23 (2010)

  16. Vol. 22 (2009)

  17. Vol. 21 (2008)

  18. Vol. 20 (2007)

  19. Vol. 19 (2006)

  20. Vol. 18 (2005)

  21. Vol. 17 (2004)

  22. Vol. 16 (2003)

  23. Vol. 15 (2002)

  24. Vol. 14 (2001)

  25. Vol. 13 (2000)

  26. Vol. 12 (1999)

  27. Vol. 11 (1998)

  28. Vol. 10 (1997)

  29. Vol. 9 (1996)

  30. Vol. 8 (1995)

  31. Vol. 7 (1994)

  32. Vol. 6 (1993)

  33. Vol. 5 (1992)

  34. Vol. 4 (1991)

  35. Vol. 3 (1990)

  36. Vol. 2 (1989)

  37. Vol. 1 (1988)

Transactions of the Institute of Systems, Control and Information Engineers Vol. 9 (1996), No. 12

H Identification with Truncated Model

Kouji TSUMURA, Kenichi HATSUNE, Yoshio SAITO

pp. 565-572

Abstract

In this paper we study identification of discrete time systems using normalized coprime factorization. Robust identifications which agree with robust control theory have been actively investigated in frequency domain and time domain. We have proposed several new identification methods using normalized coprime factorization for time domain identification problems, in which the evaluated functions are given to have relation to the graph topology. In these methods, unknown terms of the identified rational functions, which are caused by I/O data finiteness, are optimally interpolated so that the evaluated functions are minimized. On the other hand, we can show other methods in which the unknown coefficients are approximately equal to 0. According to this idea, we propose some new identification methods using truncated model in this paper. Their algorithms contain iteration of some processes, to solve a linear matrix inequality or the 2-block problem of H-norm condition. We also give numerical examples and discuss the effectiveness and the problems of these methods.

Bookmark

Share it with SNS

Article Title

H Identification with Truncated Model

Scheduling Method of Lot Operating Sequence in Semiconductor Fabrication

Toshihiro UMEDA, Kayako OMURA, Takashi FUKUSHIMA, Masami KONISHI, Tomonobu YOSHIDA

pp. 573-581

Abstract

This paper discusses the lot scheduling method in a semiconductor fabrication, which is a typical repetitive production process. As for the algorithm to schedule lot operating sequence, simulated annealing (SA) method is applied to this scheduling formulated in the combinatorial optimization problem between machines and silicon wafer lots. To accelerate convergence of SA computation keeping up the solution quality, a new technique for reduction of the problem size and improvement of neighborhood creation are developed. Moreover, in our system, material flow in every process is simulated to consider not only the lot inventory but also the future lot arrival.

Bookmark

Share it with SNS

Article Title

Scheduling Method of Lot Operating Sequence in Semiconductor Fabrication

Limiting Zeros of Sampled Systems with the Fractional Order Hold

Mitsuaki ISHITOBI

pp. 582-588

Abstract

This paper is concerned with the zeros of sampled-systems which are composed of a fractional order hold, a continuous-time plant and a sampler in series. The locations of the zeros are investigated when the sampling period tends to zero. Further, the stability conditions of the zeros for sufficiently small sampling periods are derived. The fractional order hold has an advantage to the zero order hold on the stability of the discrete zeros when the relative degree of a continuous-time transfer function is two.

Bookmark

Share it with SNS

Article Title

Limiting Zeros of Sampled Systems with the Fractional Order Hold

A study of Hydraulic Motor Servosystem with High-power and Quick-response

Katsuya KONDO, Ichiro UEDA, Masaaki OKAMOTO, Osamu SUGIYAMA

pp. 589-597

Abstract

A hydraulic motor servosystem is useful for control of high power and quick response such as drawing control of horizontal continuous casting machine at steel making process. But, it is necessary to accomplish stable control with highspeed. In this paper, the dynamic characteristics of hydraulic motor servosystem is studied by using mathematical models of its components. It is proposed to use a simple bypass valve for getting stable control which is able to damp the hydraulic servosystem. The effectiveness of the proposed method is confirmed by a numerical simulation and an actual experiment.

Bookmark

Share it with SNS

Article Title

A study of Hydraulic Motor Servosystem with High-power and Quick-response

Modular Control of Petri Nets under Partial Observation

Shigemasa TAKAI, Satoru KUSUMOTO, Shinzo KODAMA

pp. 598-605

Abstract

This paper studies state feedback control of Petri nets under partial observation. We consider the case where a control specification is given in terms of conjunction of component predicates. For such a specification, modular feedback synthesis is useful. We first show that modular synthesis of the unique maximally permissive controller (MPC) is not always possible under partial observation. We then present a necessary and sufficient condition for the unique MPC to be constructed in a modular fashion. Moreover, we demonstrate modular synthesis of the unique MPC for a simple manufacturing system.

Bookmark

Share it with SNS

Article Title

Modular Control of Petri Nets under Partial Observation

A Generalization of Direct Strain Feedback Control for a Flexible Structure with Spatially Varying Parameters and a Tip Body

Motofumi HATTORI, Satoshi TADOKORO, Toshi TAKAMORI

pp. 606-608

Bookmark

Share it with SNS

Article Title

A Generalization of Direct Strain Feedback Control for a Flexible Structure with Spatially Varying Parameters and a Tip Body

Article Access Ranking

19 Jul. (Last 30 Days)

You can use this feature after you logged into the site.
Please click the button below.

Advanced Search

Article Title

Author

Abstract

Journal Title

Year

Please enter the publication date
with Christian era
(4 digits).

Please enter your search criteria.