Steel Science Portal

Transactions of the Institute of Systems, Control and Information Engineers
New Arrival Alert : OFF

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

Log in / Sign up
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668

Transactions of the Institute of Systems, Control and Information Engineers Vol. 23 (2010), No. 11

  • Dynamic Quantizer Synthesis Based on Invariant Set Analysis for SISO Systems with Discrete-Valued Input

    Kenji Sawada, Seiichi Shin

    pp. 249-256

    Bookmark

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

    Log in / Sign Up

    DOI:10.5687/iscie.23.249

    Abstract

    This paper proposes analysis and synthesis methods of dynamic quantizers for linear feedback single input single output (SISO) systems with discrete-valued input in terms of invariant set analysis. First, this paper derives the quantizer analysis and synthesis conditions that clarify an optimal quantizer within the ellipsoidal invariant set analysis framework. In the case of minimum phase feedback systems, next, this paper presents that the structure of the proposed quantizer is also optimal in the sense that the quantizer gives an optimal output approximation property. Finally, this paper points out that the proposed design method can design a stable quantizer for non-minimum phase feedback systems through a numerical example.

  • An Implementation Method of the Fractional-Order PID Control System Considering the Memory Constraint and its Application to the Temperature Control of Heat Plate

    Koji Sasano, Hiroshi Okajima, Nobutomo Matsunaga

    pp. 257-264

    Bookmark

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

    Log in / Sign Up

    DOI:10.5687/iscie.23.257

    Abstract

    Recently, the fractional order PID (FO-PID) control, which is the extension of the PID control, has been focused on. Even though the FO-PID requires the high-order filter, it is difficult to realize the high-order filter due to the memory limitation of digital computer. For implementation of FO-PID, approximation of the fractional integrator and differentiator are required. Short memory principle (SMP) is one of the effective approximation methods. However, there is a disadvantage that the approximated filter with SMP cannot eliminate the steady-state error. For this problem, we introduce the distributed implementation of the integrator and the dynamic quantizer to make the efficient use of permissible memory. The objective of this study is to clarify how to implement the accurate FO-PID with limited memories. In this paper, we propose the implementation method of FO-PID with memory constraint using dynamic quantizer. And the trade off between approximation of fractional elements and quantized data size are examined so as to close to the ideal FO-PID responses. The effectiveness of proposed method is evaluated by numerical example and experiment in the temperature control of heat plate.

  • An On-Board Diagnosis Logic and Its Design Method

    Satoshi Hiratsuka, Akira Fusaoka

    pp. 265-273

    Bookmark

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

    Log in / Sign Up

    DOI:10.5687/iscie.23.265

    Abstract

    In this paper, we propose a design methodology for on-board diagnosis engine of embedded systems. A boolean function for diagnosis circuit can be mechanically designed from the system dynamics given by the linear differential equation if it is observable, and also if the relation is given between the set of abnormal physical parameters and the faulty part. The size of diagnosis circuit is not so large that it can be implemented in FPGA or fabricated in a simple chip.

  • Loss and its Compensation of Nonconforming Items in Inventory Management

    Yasuhiko Takemoto, Masatoshi Yago, Ikuo Arizono

    pp. 274-276

    Bookmark

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

    Log in / Sign Up

    DOI:10.5687/iscie.23.274

  • © 2010 THE INSTITUTE OF SYSTEMS, CONTROL AND INFORMATION ENGINEERS (ISCIE)

Article Access Ranking

03 Feb. (Last 30 Days)

  1. Automatic Ultrasonic Testing of Non-metallic Inclusions Detectable with Size of Several Tens of Micrometers Using a Double Probe Technique along the Longitudinal Axis of a Small-diameter Bar ISIJ International Vol.61(2021), No.1
  2. Effect of microstructure on mechanical properties of quenching & partitioning steel ISIJ International Advance Publication
  3. Role and Potential of Aluminium and Its Alloys for a Zero-Carbon Society MATERIALS TRANSACTIONS Vol.64(2023), No.2
  4. Preface to the Special Issue on “Advanced Carbon Utilization Technologies and Processes for Sustainably Prosperous Society” ISIJ International Vol.62(2022), No.12
  5. A novel way refining the partially reverted globular austenite in reversion from martensite ISIJ International Advance Publication
  6. Soft Sensors and Diagnostic Models Using Real Time Data of Blast Furnaces at Tata Steel ISIJ International Vol.63(2023), No.1
  7. Interaction Coefficients of Cu and Sn with Mn in Molten Iron at 1873 K ISIJ International Vol.62(2022), No.12
  8. Influence of Large Amount of Hydrogen Containing Gaseous Reductant Injection on Carbon Consumption and Operation Conditions of Blast Furnace - Development of Low Carbon Blast Furnace Operation Technology by using Experimental Blast Furnace: part II - ISIJ International Vol.62(2022), No.12
  9. Influence of the Slag Rim on the Heat Transfer Behavior of a Mold ISIJ International Advance Publication
  10. Application of Variable Gauge Rolling Technology for Plate to Reduce the Head Impact ISIJ International Advance Publication

Search Phrase Ranking

03 Feb. (Last 30 Days)

  1. blast furnace
  2. process
  3. aaa
  4. tetsu
  5. aaaa
  6. a
  7. aa
  8. orange peel
  9. ...
  10. experimental study on