摘要
为了提高生产效率,实际生产线中需要对运动中的产品进行拍照和检测,但由于硬件或软件集成的原因,造成图像存在拖影,最终导致不能实现动态检测;本系统基于硬件集成与软件优化,实现一个整体解决方案;首先有机集成PLC高低平触发信号、光源控制器、光源、相机,完成基于硬件的外触发式图像采集;然后对相机SDK进行二次开发,做出支持外触发式取像的软件;最后基于C++对找圆算法进行图像处理优化,处理速度在100 ms以下;经过实验验证,与停顿式检测相比,本系统在保证精度的前提下,在速度上有明显优势,可应用于工程实践。
Manufacturing demand visual inspection widely exists,and there exist two problems： the light environment of instability will affect the image processing algorithm accuracy and interactive hardware organization and visual software is often difficult,thus affects the visual detection function implantation.Therefore,implemented in software and hardware integration,this paper presented a vision based detection system of intelligent feedback coupling PLC. In the aspect of image processing algorithm,we first had the organic integration of PLC and flat,light controller,light source,camera trigger signal to complete external trigger type image acquisition based on hardware; and then we had the secondary development of the camera SDK to make sampling image software supporting external trigger; Finally based on C ＋＋,we had the image processing optimizing of finding circle algorithm and the processing speed was below 100 ms after the optimizing. The results show that： compared with the traditional image processing method,the mechanism has the advantages of high precision and can be used in the engineering,and at the same time to realize the interaction of hardware and software.
出处
《兵器装备工程学报》
CAS
2016年第2期131-134,共4页
Journal of Ordnance Equipment Engineering
基金
陕西省教育厅专项基金项目(11JK1030)
关键词
动态检测
PLC
相机SDK
找圆算法
图像处理
dynamic feedback
PLC
camera SDK
finding circle algorithm
image processing
