基于Linux的激光焊保护镜镜面缺陷检测系统

Cover Lens Visual Inspection System Based on Linux in Laser Soldering

摘要:

针对线上激光焊接的熔渣飞溅物粘附在保护镜片使激光光路受阻的问题，详细介绍了基于嵌入式Linux的视觉镜面缺陷检测系统的硬件及软件设计。提供了一种利用图像传感器对镜片进行视觉检测的解决方案。其中：MT9M031为图像传感器，通过V4L2接口将采集图像映射到系统的用户空间并利用核心算法对图像进行坏点的检测。一旦检测到坏点，系统立刻经过CAN总线向机器人报警并终止线上作业。按照该方法设计的系统，经过实验验证效果良好。迄今尚无视觉检测保护镜片的有效方法，首度将视觉测量应用于该测量领域。

Abstract:

Aimed to the problems of spattered fused dregs blocking the laser path on the cover len during on-line operation, the hardware and software design of a cover lens visual inspection system based on Linux in laser soldering was developed with the introduction. A solution with an imaging sensor to detect the lens was provided. MT9M031, as the imaging sensor, mapped images acquired to the user space by the interface of V4L2 and the system recognized the bad point in the image with the core algorithm. The system also warned the robot through CAN bus immediately after the recognition of bad points and stopped the on-line operation. The equipment developed is utilized in the experiment which improves the good performance of the visual inspecting quality.So far, there is no effective method for the visual inspection of cover lens and the visual inspection is applied to the measuring area for the first time.