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. 10 (1997), No. 11

  • Optimal Scheduling for a Three-Machine Robotic Cell with Finite Buffer

    pp. 567-574

    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.10.567

    This paper discusses an optimal scheduling problem for a three-machine robotic cell with finite buffer for WIP's (Work-In-Process) such as FMC's (Flexible Manufacturing Cells), where jobs are processed on three machines in the same order, and sent between machines by a transportation robot. The objective is to find an optimal schedule that minimizes the maximum completion time (i.e., the makespan). In this paper we propose heuristic algorithms employing a fuzzy inference and tabu search technique. Numerical experiments show that the proposed heuristics give good approximate schedules for any size of buffer capacity.
  • A Batch Manufacturing Information Management System Based on Active Mechanism and Multidimensional View Generation

    pp. 575-584

    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.10.575

    In batch manufacturing information management systems, software productivity is a big problem because it is difficult to provide commonly-utilized software layer due to differences of plant facilities and production processes among target plants. In this paper, we present a model of a batch tracing mechanism and a view generation mechanism which can be utilized as a software layer organizing a batch manufacturing information management system. In addition, we confirmed that an application of this software layer for a model plant can be performed in short time and run-time performance is good enough for a practical use.
  • Design of Temperature Control System with Preview Action for Coke Oven Plant

    pp. 585-593

    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.10.585

    This paper considers an identification and design of temperature control system for a coke oven plant. We first develop a linear state-space model by identifying two ARX models based on the input-output data of the plant. Then we derive a digital tracking control system with feedforward and preview actions by applying the techniques of Refs. 2) and 3). The tracking performance of the designed control algorithm is evaluated by extensive simulation studies. It is shown that the control algorithm with the preview actions on the coal charge and reference temperature has a potential applicability for automating the operation of coke oven plant.
  • An Adaptive Setting Method of Step-Size Parameter in NLMS Algorithms

    pp. 594-606

    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.10.594

    A major, and yet unresolved, problem has been the choice of the step-size in some parameter tracking algorithms. This paper presents an adaptive setting method of step-size parameter for tracking time-varying parameters when normalized least mean square (NLMS) algorithm is used. The usual method suggested by Benveniste et al is to adjust the step-size so as to minimize the performance measure defined by the mean squares of prediction error. The weak point of this method is that the performance measure converges only on a local minimum.
    The main object of this paper is to give a solution for this problem. The solution obtained is that the performance measure converges on the global minimum through the minimization of another performance measure. As a result, the proposed algorithm becomes asymptotically optimal.
    Numerical examples indicate acceptable performance of the proposed method.
  • Level Control of a Continuous Casting Machine via H Control Theory

    pp. 607-615

    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.10.607

    In this paper, we apply H control theory to the level-control of a continuous casting machine. The level-control has two major problems of parameter variations and disturbance-pattern variations. In order to cope with these problems, we make up a table which consists of multiple H controllers. By switching one H controller to another properly, adaptability as well as robustness is achieved. This method has been applied to an actual machine and the results show a 40% decrease in level error.

Article Access Ranking

20 Aug. (Last 30 Days)

  1. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  2. Formation Mechanism of Oxide Inclusions in Cr–Mn–Ni Stainless Steel ISIJ International Advance Publication
  3. Shrinkage Distribution of Sintering Bed Evaluated by X-ray CT Observation ISIJ International Advance Publication
  4. Understanding the Structure and Structural Effects on the Properties of Blast Furnace Slag (BFS) ISIJ International Vol.59(2019), No.7
  5. Observation of Deadman Samples in a Dissected Blast Furnace Hearth ISIJ International Advance Publication
  6. Analysis of the Coke Particle Size Distribution and Porosity of Deadman Based on Blast Furnace Hearth Dissection ISIJ International Advance Publication
  7. Numerical Investigation of Effect of Casting Speed on Flow Characteristics of Molten Steel in Multistrand Tundish ISIJ International Vol.59(2019), No.7
  8. Effect of Coke Particle Arrangement on Reduction and Gasification Reaction in Mixed Layer of Ore and Coke ISIJ International Vol.59(2019), No.7
  9. Applicability of Time-Gated Raman Spectroscopy in the Characterisation of Calcium-Aluminate Inclusions ISIJ International Advance Publication
  10. Coke Microstructure and Graphitization Across the Hearth Deadman Regions in a Commercial Blast Furnace ISIJ International Advance Publication

Search Phrase Ranking

20 Aug. (Last 30 Days)

  1. blast furnace
  2. blast furnace productivity
  3. blast furnace permeability
  4. mold
  5. continuous casting
  6. flatness control
  7. steelmaking
  8. jats
  9. oxygen coordination number of fe ions
  10. steel