新型高密度电路板的自动光学检测系统设计  

Design of new automatic optical inspection system of HID PCB

作　　者：熊光洁[1,2] 马树元[1] 武思远 聂学俊[1,2] 汤晓华[2] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京工商大学机械工程学院,北京100048 [3]北京星河泰视特科技有限公司,北京100094

出　　处：《计算机工程与设计》2011年第9期3218-3221,共4页Computer Engineering and Design

基　　金：北京市(海淀区)科委科技创新基金项目(K20090217L)

摘　　要：为提高自动光学检测系统(AOI)的缺陷检出率,研究了一种采用多色光源照明,利用机器视觉获取被测高密度印刷电路板(HDI型PCB)图像,通过图像处理快速准确地识别出各种缺陷的新型AOI。实验装置由主控计算机、电气控制系统、精密机械运动装置、多色光源照明和图像采集系统等组成。图像处理及识别软件基于OPENCV和VisualStudio2005开发,模块化设计,包括光源控制、图像采集、图像拼接、图像定位、路径规划、缺陷检测和缺陷统计等模块。实验结果表明,新型AOI系统可检出加载HDI型PCB的各种缺陷,缺陷的检出率可达99.9%,误报率只有0.3%。To improve the detection rate of defects,a new automated optical inspection system（AOI） with multi-color illuminator is researched which can capture the tested high density interconnection printed circuit board（HDI PCB） image by using machine vision,and can identify the various defects quickly and accurately by image processing software systems.The hardware of AOI consists of a host computer,electrical control systems,precise mechanical movement devices,multi-color light source illuminators,image acquisition systems,etc.And the software of AOI is developed with VisualStudio2005 and OPENCV,which uses modular design,including lighting control module,image acquisition module,image stitching module,image positioning module,the path planning module,defects defecting module and defects statistics module.The experiments prove that the HDI PCB defects detection rate of the AOI is improved to 99.9% and the false alarm rate of defects is down to 0.3%.

关 键 词：机器视觉 高密度电路板 缺陷检出率 多色光源照明 自动光学检测系统 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]