基于LabVIEW和支持向量机的电弧传感焊缝偏差识别系统

在虚拟仪器开发软件LabVIEW环境下,构建了一种新的基于旋转电弧传感的自动焊缝偏差识别系统.描述了基于LabVIEW的数据采集,小波滤波,数据归一化处理,纵向均值滤波,横向数据维数约简等预处理方法.简述了支持向量回归机的基本原理,数据依赖型核函数的构建,以及支持向量回归机在MATLAB中的算法实现.最后采用LabVIEW和MATLAB相结合的方法,给出了偏差识别系统整个软件的设计方法及控制流程并进行了试验研究.结果表明,方法是可行的,识别精度能满足工程应用的需要.

Arc sensor seam offset identification system based on LabVIEW and support vector regression machine

The new welding seam offset identification system of arc sensor was developed with the virtual instrument LabVIEW in this paper. The data detection, wavelet filtering, data normalizing, vertical mean filtering and horizontal dimensionality reduction were depicted based on LabVIEW. The basic principle of the support vector regression machine and data-dependent kernel function was introduced. The algorithm realization of the support vector regression machine with Matlab was proposed. The design method and the...