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.!2
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机译:摘要:本文介绍了用于检查腈纶生产线的机器视觉系统INFIBRA的实现。该系统是由INETI根据Fisipe,Fibras Sinteticas de Portugal,S.A。的合同开发的。在Fisipe,有十条连续生产的生产线,每条生产线的长度约为40 m。在较高的环境温度和湿度的条件下,一组操作员用于对每条生产线进行定期的手动目视检查。手动检查过程中的故障以某种频率发生并不奇怪,其后果从降低纤维质量到停产不等。 INFIBRA系统体系结构是基于个人计算机(PC)网络的通用模块化机器视觉体系结构的专业化,每个计算机都配备了低成本的图像采集卡。每条生产线都有一台专用PC,该PC使用专门设计的计量算法,通过位于生产线上关键位置的四个摄像机进行自动检查。摄像机安装在定制的密封水冷外壳内,以保护摄像机免受不利环境的影响。十台PC,每条生产线各一台,通过标准以太网连接与中央PC通信。通过中央PC上的简单图形界面,操作员可以控制检查过程的所有方面,从配置到处理警报。在任何时候,操作员还可以在中央PC屏幕上查看系统使用的40个摄像机中的任何一个的实时图像。!2
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