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. 4 (1991), No. 10

  • A Constitution of a Model Reference Adaptive Control, System by Learning Control Method

    pp. 393-398

    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.4.393

    Model reference adaptive control system (MRACS) theory is an effective method for dealing with unknown systems. When an MRACS is constituted, current parameters and the state variables of the unknown plant are usually estimated to adjust control parameters. But there are some problems when they are estimated.
    This paper presents a design method of an MRACS by an approximately inverse functional compensator. The system is constructed from a viewpoint of a learning control method and is, based on an exact model matching (EMM) technique. The system designed by the proposed method can decrease the control error between the output of the plant and the reference model without estimation of the parameters and the state variables. The, learning control method is used for the plant which can be controlled repeatedly. In the frequency zone of signals passing through the plant and the reference model, the approximately inverse functional compensator has inverse properties of the reference model.
  • A Design of Finite-Time Settling Control System with Softening Filter

    pp. 399-406

    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.4.399

    This paper deals with the following two design methods of finite-time settling control system (FTSCS) with softening filter for general one-input and one-output linear controlled object. One is the design of FTSCS under the input saturation, and another is that minimizing the quadratic performance index. The structures of the systems designed by proposed methods are more simple than those by conventional methods. And it is shown that the design parameters are easily and briefly specified by using some polynomials describing the filter and the state feedback elements. To demonstrate the effectiveness of proposed methods, some numerical examples are also presented.
  • Multiobjective Evaluation Reasoning in Expert System for Production Line Design

    pp. 407-412

    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.4.407

    This paper proposes a new knowledge representation and a new reasoning for an expert system in assisting production line design which is the planning process used when introducing new machine tools into a factory.
    In this system hybrid knowledge representations are used. These are the hierarchical knowledge representing the structure in three layers and the knowledge representation using semantic network. In semantic network a machine tool type is divided by its machine mechanism and function in detail. In regard to the reasoning, we propose the multiobjective evaluation reasoning which has a two stage reasoning process. These processes use the elimination reasoning method which can examine a machine structural characteristic and compare the multiplicative utility function values. Because of this comparison capability it is able to evaluate many objectives simultaneously when purchasing machine tools.
  • Least Mean Square Estimation of Articulation Parameter Dynamics

    pp. 413-420

    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.4.413

    The purpose of this study is to estimate dynamics of the articulatory organs (jaw and tongue) by voice analysis.
    Relation between control signals to the articulatory organs and PARCOR coefficients is simulated by a transfer function model of second order systems. Then, parameters of the model (time constants and damping rations) and control signals (control timings and amplitudes) are estimated by applying least mean square method to the error between PARCOR coefficients and responses of the model for sequential vowel/aiue/.
    Synthesized voice using the. estimeted model has the same characteristics as the original voices in voice analysis and hearing test. Also, the dynamics of the model estimated are almost equivalent to five male subjects, while the sequential patterns of the control signals show the personal differences of the subjects.
    It could be concluded from the estimation that personality of utterance mainly depends on the control signal to the articulatory organs.
  • Fuzzy Control of an Interconnected Multi-Reservoir Power System Combined with Real-time Prediction

    pp. 421-428

    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.4.421

    This paper deals with fuzzy control of state variables in an interconnected multi-reservoir power system combined with real-time prediction. A mathematical model of the system in described as a discrete-time stochastic state-space model, including conditions which restrict the amount of water released from the upper stream reservoir and also restrict the method of discharging the water into the lower stream. In practice, it is required to notify few hours in advance the change of discharge into the lower stream. This is the reason why we need real-time prediction of the states for determining the amount of control well in advance. As the results of simulation studies we point out the effectiveness of fuzzy control compared with optimal regulator from the point of view of practical control of extending the durability of water gates and power generators.
  • Nonlinear Adaptive Filter with a Neural Network

    pp. 429-431

    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.4.429

  • Consideration on Prediction Method of Discharge Values for Pb Battery.

    pp. 432-434

    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.4.432

Article Access Ranking

19 Jan. (Last 30 Days)

  1. Improving Blast Furnace Raceway Blockage Detection. Part 1: Classification of Blockage Events and Processing Framework ISIJ International Advance Publication
  2. A Review of the Chemistry, Structure and Formation Conditions of Silico-Ferrite of Calcium and Aluminum (‘SFCA’) Phases ISIJ International Vol.58(2018), No.12
  3. Hydrogen Embrittlement Susceptibility Evaluation of Tempered Martensitic Steels Showing Different Fracture Surface Morphologies Tetsu-to-Hagané Vol.105(2019), No.1
  4. Heat Transfer Characteristic of Slit Nozzle Impingement on High-temperature Plate Surface ISIJ International Advance Publication
  5. Fusion Zone Microstructural Evolution of Al-10% Si Coated Hot Stamping Steel during Laser Welding ISIJ International Vol.59(2019), No.1
  6. Effect of Annealing Time on Oxides Phases and Morphology along Oxidized Depth of Fe-3%Si Steel during Decarburization ISIJ International Vol.59(2019), No.1
  7. Improving Blast Furnace Raceway Blockage Detection. Part 2: Signal Processing of Hot Blast Pressure Data ISIJ International Advance Publication
  8. Effects of Sulfur and Titanium Interaction in Molten Pig Iron on Erosion of Carbon Brick ISIJ International Vol.59(2019), No.1
  9. Numerical Simulation of Decarburization Kinetics for Fe-3%Si Steel during Annealing ISIJ International Advance Publication
  10. Improving Blast Furnace Raceway Blockage Detection. Part 3: Visual Detection Based on Tuyere Camera Images ISIJ International Advance Publication

Search Phrase Ranking

19 Jan. (Last 30 Days)

  1. blast furnace
  2. blast furnace productivity
  3. blast furnace permeability
  4. 鉄と鋼
  5. laser welder
  6. titanium
  7. activity feo
  8. argon steel
  9. continous annealing
  10. eaf operation