Dedicated multiprocessor system for automatic rail flaw detection

Zs Abonyi, T. Dobrowiecki, K. Toth

Research output: Contribution to journalConference article


An automatized ultrasonic rail flaw detection system has been developed for real-time rail flaw detection and evaluation. The whole system installed on a testing vehicle, working under rough environmental conditions must determine the internal irregularities of the rail, document them on the basis of a table containing the danger information, and immediately mark the rail in order to make easy the identification of the faulty segments for maintenance staff. During the measurement, three pairs of ultrasonic transmitters and receivers, with different orientation, scan the rail providing indirect information about the vertical section. The rail flaw detection procedure itself is a two-dimensional pattern recognition problem consisting of image reconstruction, spatial filtering with thresholding and classifying phases.

Original languageEnglish
Pages (from-to)33-41
Number of pages9
JournalPeriodica Polytechnica Electrical Engineering
Issue number1
Publication statusPublished - Jan 1 1988
EventLectures presented at the International Seminar on Microprocessors - Budapest, Hung
Duration: Oct 15 1986Oct 18 1986

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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