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. 3 (1990), No. 4

  • Extensions of Fuzzy Relations Considering Interaction Between Possibility Distributions and an Application to Fuzzy Linear Program

    pp. 93-102

    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.3.93

    In this paper, a controversial point of previous definition of optimal or efficient solutions to mathematical programming problems with fuzzy objective functions is pointed out. As basis for settling the controversial point, the extension methods of fuzzy relations to the relations between interactive or dependent possibility distributions are proposed. Some properties of the extended fuzzy relations are investigated. Next, in order to illustrate the controversial point, a defect of a previous definition of optimal solutions, i. e., α-possibly efficient solutions is clarified and the definition is modified using one of proposed extended fuzzy relations. It is shown that the defect is dissolved by the modified definition.
  • A Proposal of Novel Control System for Reducing Train Headway

    pp. 103-109

    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.3.103

    A control system for cutting down the headway of train operation is proposed. This system employs the following three measures. First, the system is provided with multistep ATC, and applies the brake that is unreleasable until full stop of the train once train speed exceeds the limited value. Second, a control pattern is incorporated into the system, and controls the train speed automatically according to the pattern. Third, improved definition by subdividing train detection at its tail end is applied. Simulation result shows that headway is reduced to 116 second by the proposed system against 140 second by conventional system. This fact signifies reinforceability of the carrying capacity by 17%.
  • A Measurement Method of a Vehicle Position and Attitude by Use of TV Camera

    pp. 110-117

    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.3.110

    It is important for various 3-D vehicles such as airplanes and spaceplanes to measure their positions and attitudes in order to control themselves ; they need a system which can measure them precisely and easily.
    In this paper, a method of measuring vehicle's position and attitude is studied, which uses an onboard-TV camera.
    This system consists of a TV camera and a target including multiple reference points, whose positions are known. Image information from TV camera is processed in a microcomputer and the positions of the reference points on the image plane are calculated, and by use of them the relative position and attitude (6 DOF information) of the view point of the TV camera are estimated. The least square method or Kalman filter is used in estimation.
    On one hand, it is needed to direct the TV camera to the target in order to get images constantly. In this paper, a control method of tracking the target is studied, too.
    An experiment of measurement was conducted with an assembled test system. As the result, it was proven that these methods were useful with high accuracy.
  • A Robust Stability Condition for Linear Systems with Interval Parameters

    pp. 118-120

    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.3.118

    [in Japanese]

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