SICE Journal of Control, Measurement, and System Integration
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: 1884-9970
PRINT ISSN: 1882-4889

SICE Journal of Control, Measurement, and System Integration Vol. 12 (2019), No. 6

  • Optimal Coordination and Control of Connected and Automated Vehicles at Intersections via Mixed Integer Linear Programming

    pp. 215-222

    Bookmark

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

    Log in / Sign Up

    DOI:10.9746/jcmsi.12.215

    This paper addresses the crossing order problem for connected and automated vehicles at an intersection where the problem can lead to higher traffic congestion, especially in high traffic density. First, we formulated the problem with mixed integer linear programming where the solution yields optimal crossing time for each vehicle to cross the intersection. Then, we present an optimization framework to drive each vehicle towards the assigned crossing time while conserving the fuel consumption. Finally, we simulate the intersection scenario with the proposed solution, where it is shown that both congestion and fuel consumption can be reduced significantly.
  • A Modified GMRES Method for Solving a Symmetric Solution to Lyapunov Equation for Multi-Agent Systems

    pp. 223-227

    Bookmark

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

    Log in / Sign Up

    DOI:10.9746/jcmsi.12.223

    We consider solving a large-scale Lyapunov equation for a multi-agent system. As is well known, the Lyapunov equation can be solved by equivalently rewriting it as a system of linear equations. The difficulties in solving this system are memory requirement and computational complexity due to the large-scale coefficient matrix involving a number of Kronecker products. This paper presents a modified GMRES method for solving the aforementioned system of linear equations taking account of its tensor structure and the symmetry of the unknown matrix in the Lyapunov equation. Through numerical experiments, the improvement in memory requirement and computational time by the present algorithms is verified in comparison with the previous GMRES-based methods.
  • A Probabilistic Method for Constructing an Empirical Discrimination Model for Hammering Inspection of Cast-Iron Parts

    pp. 228-236

    Bookmark

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

    Log in / Sign Up

    DOI:10.9746/jcmsi.12.228

    A probabilistic method for constructing an empirical discrimination model to inspect defective cast-iron parts (such as graphite-spheroidized defective parts) by the hammering test is proposed. The hammering-sound frequency spectrum includes multiple resonance lines whose frequencies vary according to the degree of defect. To construct the model, only non-defective hammering-sound data that can be collected from the production line are input, and a distribution function that fits the frequency distribution of each resonance line is estimated. Since the frequency distribution shows multimodality and asymmetry, the function is estimated by using automatic differentiation variational inference with a mixed-normal distribution function. The confidence interval of the obtained distribution function is then regarded as a section with no defective parts, and the discrimination model is automatically constructed by connecting the sections of all resonance lines in the audible range. Then, parts outside the sections are discriminated as defective. Experimentally determined accuracy confirmed that it is possible to achieve hammer-test inspection with the detection rate of 100% and prevent overlooking of defective parts.
    x

    Readers Who Read This Article Also Read

    1. FATIGUE DAMAGE EVALUATION OF BELLOWS DAMPER ON EARTHQUAKE GROUND MOTION Kou kouzou rombunshuu Vol.26(2019), No.101
  • Distributed Dynamic Reference Governor for Constrained Semi-Autonomous Robotic Swarms with Communication Delays and Experimental Verification

    pp. 237-245

    Bookmark

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

    Log in / Sign Up

    DOI:10.9746/jcmsi.12.237

    This paper investigates constrained semi-autonomous robotic swarms in the presence of inter-robot communication delays. The objective is that all robots converge to the optimal point related to the reference given by a human operator without violating the constraints. In the presence of constraints, directly applying the human reference may make the system violate constraints. We thus apply a reference governor which suitably modifies the reference to avoid constraint violations. Due to the limited access of global information, we present a passivity-based distributed reference governor scheme. However, the presence of the communication delays could cause instability of the system. To integrate communication delays into the passivity paradigm, a passivation technique using the scattering transformation is implemented in the communication path. Based on passivity theory, we prove the convergence of the estimated states of the reference governor to the optimal solution. The simulations and experiments demonstrate the effectiveness of the proposed solution.

Article Access Ranking

18 Sep. (Last 30 Days)

  1. Formation and Evolution of Inclusions in High Chromium Steel ISIJ International Vol.61(2021), No.9
  2. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  3. Production and Technology of Iron and Steel in Japan during 2020 ISIJ International Vol.61(2021), No.6
  4. Preface to the Special Issue on “Recent Progress in Inclusion/ Precipitate Engineering” ISIJ International Vol.61(2021), No.9
  5. Effect of Heating Rate on Carbothermic Reduction and Melting Behavior of Iron Ore-Coal Composite Pellets ISIJ International Advance Publication
  6. Influence of Slag Viscosity and Composition on the Inclusion Content in Steel ISIJ International Advance Publication
  7. Evaluation of Interfacial Energy between Molten Fe and Fe-18%Cr-9%Ni Alloy and Non-Metallic Inclusion-Type Oxides ISIJ International Vol.61(2021), No.9
  8. Modeling of Wall Shear Stress Induced Inclusion Transport and Removal in Multi-Strand Tundish ISIJ International Vol.61(2021), No.9
  9. Three-dimensional Quantitative Evaluation of the Lamellar Curvature in Pearlitic Steel Based on an Orientation Analysis of Cementite ISIJ International Advance Publication
  10. Effect of Ore Type and Gangue Content on Carburization and Melting Behavior of Carbon-Iron Ore Composite ISIJ International Vol.61(2021), No.6

Search Phrase Ranking

18 Sep. (Last 30 Days)

  1. blast furnace
  2. inconel 600
  3. miyamoto goro
  4. blast furnace productivity
  5. nozzle clogging
  6. sohei sukenaga
  7. b2o3 mold flux
  8. blue carbon
  9. crn
  10. goro miyamoto