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The Development of Sensuous Classification System of Products with Neural Computer

Research Project

Project/Area Number 05555079
Research Category

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

Allocation TypeSingle-year Grants
Research Field Intelligent mechanics/Mechanical systems
Research InstitutionTOKYO NATIONAL COLLEGE OF TECHNOLOGY

Principal Investigator

KOSAKA Toshifumi  TOKYO NATIONAL COLLEGE OF TECHNOLOGY,Associate Professor, 情報工学科, 助教授 (60153524)

Co-Investigator(Kenkyū-buntansha) SHINKAI Takashi  ASMO Co., Ltd., Production Engineering, 生産技術部
KOMATSU Tomohiro  ASMO Co., Ltd., Production Engineering, Chief, 生産技術部, 主任
YAMADA Shinji  YAMANASHI UNIVERSITY,Faculty of Engineering, Professor, 工学部, 教授 (90020403)
KITAMURA Toshiya  YAMANASHI UNIVERSITY,Faculty of Engineering, Research Associate, 工学部, 助手 (80224971)
MATSUBAYASHI Katsushi  TOKYO NATIONAL COLLEGE OF TECHNOLOGY,Research Associate, 機械工学科, 助手 (80239061)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1994: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1993: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsNeural Computer / Neural Network / motor / abnormal sound / inspection / noise
Research Abstract

The automatic classification of sounds of small motors was examined with Neural Computer. The motor emitting comfortable sound is judged normal, even if the sound level is high. The motor emitting noisy sound is judged abnormal, even if the sound level is very low. Skilled workers inspect sounds of motors abnormal or not. In addition they classify factors of abnormal noise with its timere. As the inspection is sensuous and anyone cannot make definite criterion of judgment, it has been impossible to inspect motors automatically.
The classification system with Neural Computer for practical use was developed. Auto correct algorithm on learning and fast convergence algorithm were applied in the Neural Computer program. Neural computer learning characteristics were investigated with total error and energy. Weight reversal output was applied to know the status of Neural Computer after learning. Motors in remote control door mirrors were examined and their power spectra were learned. After lea … More rning, unlearned data were inputted to Neural Computer and they were classified factors of abnormal noise correctly with high percentage. At the classification whether the motor had abnormal sound or not, very few abnormal sound data were recognized as normal sound.
In the factory of motors, at the end of assembling line of geared motors, Neural Computer classification system was applied. The motor is part of air conditioner of car. One of the abnormal sounds is emitted from gears. It is difficult to classify the sound with comparing power spectra. The average value, maximum value, fluctuation width and the number of abnormal peak extracted from 8 outputs (time domain) from 1/3 octave band filter were employed as data. After learning of these data, more than 99% of unlearned data were classified correctly for each category. This classification system has been worked at the end of assembly line since September 1994. As single board computer with Neural Network program has been developed, system has been small and it has reduced the cost. Then, this classification system is applied to other assembly lines. Less

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の自動判定" 1993年度精密工学会秋季大会学術講演会論文集. 2. 533-534 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の非破壊検査" 日本非破壊検査協会平成5年度秋季大会講演概要集. 209-212 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の非分解予測" 東京工業高等専門学校研究報告書第25号. 35-39 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Katsushi MATSUBAYASHI: "CLASSIFICATION OF ABNORMAL NOISE FACTORS ON SMALL MOTORS WITH NEURAL NETWORK" PROCEEDINGS inter noise 94. 3. 1931-1934 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Katsushi MATSUBAYASHI: "Automatic Inspection of Abnormal Sound Factors on Small Motors with Neural Network Proccessing" THE 1993 AUTUMN MEETING OF THE JAPAN SOCIETY FOR PRECISION ENGINEERING. Vol.2. 533-534 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Katsushi MATSUBAYASHI: "Abonormal Sound Inspection of small Motor without Inside Check with Neural Network" THE 1993 AUTUMN MEETING OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION. 209-212 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Katsushi MATSUBAYASHI: "Distinction of Factors of Small Motor Abnormal Sound with the Neural Network" Research Reports of Tokyo National College of Technology. 35-39 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Katsushi MATSUBAYASHI: "CLASSIFICCATION OF ABNORMAL NOISE FACTORS ON SMALL MOTORS WITH NEURAL NETWORK" PROCEEDINGS inter noise 94. Vol.3. 1931-1934 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の自動判定" 1993年度 精密工学会 秋季大会学術講演会 講演概要集. 2. 533-534 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の非破壊検査" 日本非破壊検査協会 平成5年度秋季大会 講演概要集. 209-212 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の自動判定" 1993年度精密工学会秋季大会学術講演会 論文集. 2. PP533-PP534 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 松林勝志: "ニューラルネットワーク情報処理による小型モータの異音原因の非破壊検査" 日本非破壊検査協会平成5年度秋季大会 講演概要集. PP209-PP212 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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