INFIBRA: machine vision inspection of acrylic fiber production

Roger Davies; Bento A. Brazio Correia; Jose Contreiras; Fernando D. Carvalho

doi:10.1117/12.326948

6 October 1998 INFIBRA: machine vision inspection of acrylic fiber production

Roger Davies, Bento A. Brazio Correia, Jose Contreiras, Fernando D. Carvalho

Proceedings Volume 3521, Machine Vision Systems for Inspection and Metrology VII; (1998) https://doi.org/10.1117/12.326948
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

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.

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Roger Davies, Bento A. Brazio Correia, Jose Contreiras, and Fernando D. Carvalho "INFIBRA: machine vision inspection of acrylic fiber production", Proc. SPIE 3521, Machine Vision Systems for Inspection and Metrology VII, (6 October 1998); https://doi.org/10.1117/12.326948

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KEYWORDS

Inspection

Image processing

Machine vision

Cameras

Control systems

Human-machine interfaces

Video

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