轴承外观缺陷检测系统的设计与实现

Design and implementation of detecting system for defects of bearing surface

针对目前国内对轴承外观在线检测系统的要求和传统人工检测方法的不足,设计一套基于TMS320DM642的轴承外观缺陷在线检测系统。该系统硬件平台主要包括视频编解码模块、存储器模块、可编程逻辑控制器CPLD模块及核心DSP芯片;软件设计包括轴承图像采集、图像预处理、图像定位与剪裁、差影处理、形态学运算及缺陷标记识别等。实验结果表明,该系统稳定、识别率高、实时性好且可满足轴承外观缺陷的在线实时检测。

In view of the requirement of on-line bearing surface defects detection and shortage of the method of traditional manual,design a set of defects detection of bearing surface based on TMS320DM642. The system hardware platform mainly include video codec module,video storage module,programmable logic controller CPLD and core DSP chip; Software design include bearing image capture,image preprocessing,image positioning,subtraction processing,morphological operating,defects recognition,etc. The experiment results shows that,this system has the features of good stability,high reliability and good real-time performance,it can be used for real time detection of bearing surface defects.