• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Techniques for Signal Validation in Nuclear Power Plants

Research Project

Project/Area Number 62460230
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Nuclear engineering
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

KITAMURA Masaharu  Department of Nuclear Engineering Faculty of Engineering,Tohoku University, 工学部, 助教授 (00005422)

Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 1988: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1987: ¥3,100,000 (Direct Cost: ¥3,100,000)
KeywordsPlant instrumentation / Signal validation / Operational support / Diagnosis / Qualitative reasoning / Knowledge acquisition / Expert system / ファジー論理 / 特定推論 / 信号妥性検証 / 原子力プラント計装 / 知識ベースシステム / 知識工学 / 運転員支援 / 多重冗長化 / 計装系の評価
Research Abstract

Signal Validation is a technique for cross-checking outputs of dissimilar sensors to obtain a single unambiguos indication for each physical parameter of critical importance. The Key issues in this technique are to acquire knowledge on cause-effect relationships between dissimilar signals, and to organize the knowledge in a form of intelligent knowledgebase. Following basic technical components have been developed to meet the need.
1. Technique for acquiring causal relationships.
2. Structurized knowledgebase for signal validation.
3. Consultation system for on-demand signal validation. The method of conventional qualitative simulationw as modified by introducing the fuzzy logic to provide a technique for satisfying the need of 1. This method allows us to characterize the causal relationships between signals in more precise manner. With the proper use of this method, we can obtain knowledge to be employed for cross-checking of dissimilar signals. The knowledge thus acquired should be related to the knowledge about plant structure for efficient signal validation. To store the two types of knowledge in an organized manner, a knowledgebase capable of handling both of the frame-representation and production rules was developed. The contents of the knowledgebase can be either prestored or generated whenever the prestored data are found to be insufficient. By using the knowledgebase as the main component, a protype of consultation system for on-demand signal validation was synthesized and implemented on a personal comuter. The usefulness of the developed system was demonstrated through simulator experiments.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] M.Kitamura: Artificial Intelligence and Other Innovative Computer Applications in Nuclear Industry,Plenum Press. 141-147 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: Proc.IMACS. 2. 450-452 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: Journal of Nuclear Science and Technology.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Takahashi: Jounal of Nuclear Science and Technology.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: "Development of Knowledgebase System for Assisting Signal Validation Scheme Design." Artificial Intelligence and Other Innovative Computer Applications in Nuclear Industry, Plenum Press. 141-147 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: "Evaluation of Signal Importance for Effective Implementation of Functional Redundancy" Proc. IMACS. 2. 450-452 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: "Knowledge Acquisition and Coordination for Signal Validation" Journal of Nuclear Science and Technology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Takahashi: "Improvement of Diagnostic Procedure by Non-monotonic Logic" Journal of Nuclear Science and Technology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] M.Kitamura: Artficial Intelligence and Other Innovative Computer Application in Nuclear Industry,Plenum Press. 141-147 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Kitamura: Proc.IMACS. 2. 450-452 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Kitamura: Journal of Nuclear Science and Technology.

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Takahashi: Journal of Nuclear Science and Technology.

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Kitamura: Topical Meeting on AI and Other Innovative Computer Applications in the Nuclear Industry:Snowbird,USA,Aug.31--Sep.2,1987.

    • Related Report
      1987 Annual Research Report
  • [Publications] 北村正晴: 日本原子力学会昭和62年秋の大会予稿集C23.

    • Related Report
      1987 Annual Research Report
  • [Publications] M.Kitamura: 12th IMACS World Congress:Paris,July 18-22,1988.

    • Related Report
      1987 Annual Research Report

URL: 

Published: 1987-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi