MODULAR SYSTEM FOR PROCESS MONITORING

摘要

A modular system for on-line process monitoring is designed as a software tool for intelligent diagnostics, monitoring and characterization of various machining processes. The system consists of modules for data acquisition, formation of a data base, data preprocessing, feature extraction and feature selection, construction of a predictive model, and on-line application of a model, for process monitoring. Measurement modules and graphic user interfaces are implemented in LabVIEW graphical programming lan-guage and numerical calculations run. on MATLAB server. The built-in tools include normalization, mutual information based feature selection, principal components analysis, digital filters, spectral analysis, custom MATLAB functions, and tools for construction of neural network based experimental models.