圆钢表面图像采集系统设计及关键技术研究
|
摘要
设计了一种以型钢产品中的圆钢为研究对象的表面图像采集系统。开发了多个高速相机环形布置的成像技术,实现圆钢表面图像360°全方位采集。针对高温生产环境,设计了对镜头与光源的热保护装置。对于不同尺寸的圆钢,设计了相机成像自动对中对焦系统来获取清晰图像。设计采用了高强度OPT机器视觉组合光源系统确保图像整体照度均匀。同时设计了计算机及硬件系统。实验表明,系统能够实现高温、高速圆钢生产过程中全规格圆钢表面的质量监控,可快速、直观地获取缺陷图像及其位置。计算机系统存档服务器的设计方便了缺陷图像数据的信息存储与查询,能为后续产品质量缺陷的分析提供有效的图像信息。
An image acquisition system of round steels was designed and developed. A number of high-speed cameras with circular arrangement were designed to realize 360° omni-directional image acquisition on the surface of round steels. In view of the high temperature production environment,the thermal protection technology for lens and light sources was designed.The automatic focusing technology of camera imaging was designed to obtain clear images of round steels within different sizes.The high intensity OPT machine vision combined light sources was used to ensure uniform illumination of the whole image.At the same time,the computer and hardware system were designed to restore the images for further research and analysis.The results show that the system can realize the quality control of the full-size round steels in high temperature and high speed process environment,and can obtain the defection images and their locations quickly and intuitively.The design of the computer system archive server is convenient for information storage and query of the defective image data,and can provide efficient information for further quality analysis of the products.
An image acquisition system of round steels was designed and developed. A number of high-speed cameras with circular arrangement were designed to realize 360° omni-directional image acquisition on the surface of round steels. In view of the high temperature production environment,the thermal protection technology for lens and light sources was designed.The automatic focusing technology of camera imaging was designed to obtain clear images of round steels within different sizes.The high intensity OPT machine vision combined light sources was used to ensure uniform illumination of the whole image.At the same time,the computer and hardware system were designed to restore the images for further research and analysis.The results show that the system can realize the quality control of the full-size round steels in high temperature and high speed process environment,and can obtain the defection images and their locations quickly and intuitively.The design of the computer system archive server is convenient for information storage and query of the defective image data,and can provide efficient information for further quality analysis of the products.
引文
[1]吴平川,路同浚,王炎.带钢表面自动检测系统研究现状与展望[J].钢铁,2010,35(6):70-74.
[2]徐科,徐金梧,陈雨来.冷轧带钢表面缺陷在线检测系统[J].北京科技大学学报,2012,24(3):329-331.
[3]侯艳,赵跃,崔晶,等.基于面阵相机传感器的带材对中检测系统[J].测控技术,2016,35(1):12-16.
[4]谢志江,陈涛,楚红雨,等.热态重轨表面缺陷在线检测方法及管件技术[J].重庆大学学报,2012,35(3):13-19.
[5]潘华,左发.H型钢表面质量自动检测技术的应用探讨[J].山西冶金,2016,16(2):56-58.
[6]蔡云飞,安小雪,吴生海,等.基于机器视觉的钢轨轮廓研究[J].城市地理,2016(18):148-149.
[7]钱园园,孙宪坤,周顺,等.钢轨焊头平直度检测系统的抑振研究[J].测控技术,2017,36(2):75-79.
[8] Choi S H,Bae H M,Hwang H W,et al.Device and method for optically detecting surface defect of round wire rod:3037808[P].2008-08-28[2016-06-29].
[9]张子恕,史建军.影像式线棒材在线表面检测系统[J].轧钢,2009,26(3):46-48.
[10]甘胜丰,王典洪,孙林.线材表面缺陷检测方法及系统结构设计[EB/OL].(2016-10-17)[2018-03-04].http://bmjc.hjunkel.com/hydt-242.html.
[2]徐科,徐金梧,陈雨来.冷轧带钢表面缺陷在线检测系统[J].北京科技大学学报,2012,24(3):329-331.
[3]侯艳,赵跃,崔晶,等.基于面阵相机传感器的带材对中检测系统[J].测控技术,2016,35(1):12-16.
[4]谢志江,陈涛,楚红雨,等.热态重轨表面缺陷在线检测方法及管件技术[J].重庆大学学报,2012,35(3):13-19.
[5]潘华,左发.H型钢表面质量自动检测技术的应用探讨[J].山西冶金,2016,16(2):56-58.
[6]蔡云飞,安小雪,吴生海,等.基于机器视觉的钢轨轮廓研究[J].城市地理,2016(18):148-149.
[7]钱园园,孙宪坤,周顺,等.钢轨焊头平直度检测系统的抑振研究[J].测控技术,2017,36(2):75-79.
[8] Choi S H,Bae H M,Hwang H W,et al.Device and method for optically detecting surface defect of round wire rod:3037808[P].2008-08-28[2016-06-29].
[9]张子恕,史建军.影像式线棒材在线表面检测系统[J].轧钢,2009,26(3):46-48.
[10]甘胜丰,王典洪,孙林.线材表面缺陷检测方法及系统结构设计[EB/OL].(2016-10-17)[2018-03-04].http://bmjc.hjunkel.com/hydt-242.html.