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Proceedings Paper

INFIBRA: machine vision inspection of acrylic fiber production
Author(s): Roger Davies; Bento A. Brazio Correia; Jose Contreiras; Fernando D. Carvalho
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Paper Abstract

This paper describes the implementation of INFIBRA, a machine vision system for the inspection of acrylic fiber production lines. The system was developed by INETI under a contract from Fisipe, Fibras Sinteticas de Portugal, S.A. At Fisipe there are ten production lines in continuous operation, each approximately 40 m in length. A team of operators used to perform periodic manual visual inspection of each line in conditions of high ambient temperature and humidity. It is not surprising that failures in the manual inspection process occurred with some frequency, with consequences that ranged from reduced fiber quality to production stoppages. The INFIBRA system architecture is a specialization of a generic, modular machine vision architecture based on a network of Personal Computers (PCs), each equipped with a low cost frame grabber. Each production line has a dedicated PC that performs automatic inspection, using specially designed metrology algorithms, via four video cameras located at key positions on the line. The cameras are mounted inside custom-built, hermetically sealed water-cooled housings to protect them from the unfriendly environment. The ten PCs, one for each production line, communicate with a central PC via a standard Ethernet connection. The operator controls all aspects of the inspection process, from configuration through to handling alarms, via a simple graphical interface on the central PC. At any time the operator can also view on the central PC's screen the live image from any one of the 40 cameras employed by the system.

Paper Details

Date Published: 6 October 1998
PDF: 9 pages
Proc. SPIE 3521, Machine Vision Systems for Inspection and Metrology VII, (6 October 1998); doi: 10.1117/12.326948
Show Author Affiliations
Roger Davies, Instituto Nacional de Engenharia e Tecnologia Industrial (Portugal)
Bento A. Brazio Correia, Instituto Nacional de Engenharia e Tecnologia Industrial (Portugal)
Jose Contreiras, Fibras Sinteticas de Portugal SA (Portugal)
Fernando D. Carvalho, Instituto Nacional de Engenharia e Tecnologia Industrial (Portugal)


Published in SPIE Proceedings Vol. 3521:
Machine Vision Systems for Inspection and Metrology VII
Bruce G. Batchelor; John W. V. Miller; Susan Snell Solomon, Editor(s)

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