基于区域的光纤环绕制缺陷实时检测算法

The Defect Detection Algorithm of Fiber Coil Winding Based on Winding Region

针对光纤陀螺敏感线圈(光纤环)制备过程中,光纤的绕制张力变化和光纤环承载主轴跳动度变化等因素导致的"爬丝"和"间隙"绕制缺陷,提出基于区域的光纤环绕制缺陷检测算法,将原始光纤凹凸特征的处理转换成矩形大小及数量特征的处理。该算法在对光纤环绕制轮廓精确提取的基础上,通过对光纤环初始表面进行拟合,确定绕制光纤覆盖的最小有效区域,并实时提取区域内已绕制光纤轮廓的最小包围矩形;然后根据阈值的合理选取,计算最小有效区域内已绕制轮廓的最小包围矩形的区域大小及区域个数,以此判断绕制缺陷的种类,并标记缺陷位置。实验结果表明,在光纤环绕制轮廓精确提取的基础上,该算法可以有效识别并标记缺陷位置,对于不易受环境因素影响的"间隙"缺陷可以完全正确检出,且执行速度快,可满足缺陷实时检测的要求。

The paper proposed a defect detection algorithm of fiber coil winding.The winding defects are caused by the factors such as the change of winding tension and the spindle beating.The defect detection algorithm based on fiber coil winding region was proposed to convert the processing of original fiber bump features into the processing of rectangular size and quantity,which needs to fit the straight line of the initial surface of fiber coil to ensure the smallest enclosing winding region and its quantity to verdict winding defects and sign their coordinates.The experimental results show that the algorithm can effectively identify and mark winding defect,the gap defect less susceptible to environmental factors can be completely detected;meanwhile,its fast execution speed can meet the real-time detection of winding defects.