Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis

Fumihiro Inoue, Satoru Doi, Tatsuya Ishizaki, Yasuhiro Ikeda, Yutaka Ota

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    9 Citations (Scopus)

    Abstract

    This paper describes an automated inspection robot for detecting tile exfoliation and a new diagnostic method for determining its existence and extent. The robot moves quickly along a vertical wall and stops to detect a tile's inner condition using a hammering sound. Tile separation commonly comprises outer exfoliation where the tile separates from the mortar concrete and inner exfoliation where the space between the substrate and the mortar concrete deteriorates. In order to detect these two exfoliations, we focused attention on wavelet analysis, which enables us to analyze the frequency element of the sound waveform on time phase continuously. By comparing the wavelet volume rate expressing the characteristics of tile deterioration for several scale tiles and striking hammers, the quantitative detection and its scale effects of visually distinguishing the two exfoliation modes was established. The automated robot and the diagnostics method were used to perform a fast and highly accurate inspection of the outer tile wall.

    Original languageEnglish
    Title of host publicationICCAS 2010 - International Conference on Control, Automation and Systems
    Pages994-999
    Number of pages6
    Publication statusPublished - 2010
    EventInternational Conference on Control, Automation and Systems, ICCAS 2010 - Gyeonggi-do
    Duration: 2010 Oct 272010 Oct 30

    Other

    OtherInternational Conference on Control, Automation and Systems, ICCAS 2010
    CityGyeonggi-do
    Period10/10/2710/10/30

    Fingerprint

    Wavelet analysis
    Tile
    Inspection
    Robots
    Mortar
    Acoustic waves
    Concretes
    Hammers
    Deterioration
    Substrates

    Keywords

    • Quantitative detection
    • Relative evaluation
    • Scale effect
    • Tile exfoliation
    • Wavelet analysis

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Control and Systems Engineering

    Cite this

    Inoue, F., Doi, S., Ishizaki, T., Ikeda, Y., & Ota, Y. (2010). Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis. In ICCAS 2010 - International Conference on Control, Automation and Systems (pp. 994-999). [5669653]

    Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis. / Inoue, Fumihiro; Doi, Satoru; Ishizaki, Tatsuya; Ikeda, Yasuhiro; Ota, Yutaka.

    ICCAS 2010 - International Conference on Control, Automation and Systems. 2010. p. 994-999 5669653.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Inoue, F, Doi, S, Ishizaki, T, Ikeda, Y & Ota, Y 2010, Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis. in ICCAS 2010 - International Conference on Control, Automation and Systems., 5669653, pp. 994-999, International Conference on Control, Automation and Systems, ICCAS 2010, Gyeonggi-do, 10/10/27.
    Inoue F, Doi S, Ishizaki T, Ikeda Y, Ota Y. Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis. In ICCAS 2010 - International Conference on Control, Automation and Systems. 2010. p. 994-999. 5669653
    Inoue, Fumihiro ; Doi, Satoru ; Ishizaki, Tatsuya ; Ikeda, Yasuhiro ; Ota, Yutaka. / Study on automated inspection robot and quantitative detection of outer tile wall exfoliation by wavelet analysis. ICCAS 2010 - International Conference on Control, Automation and Systems. 2010. pp. 994-999
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