Cutting tool tracking and recognition based on infrared and visual imaging systems using principal component analysis (PCA) and discrete wavelet transform (DWT) combined with neural networks
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- Elgargni, M., Al-Habaibeh, A. & Lotfi, A. Int J Adv Manuf Technol (2015) 77: 1965. doi:10.1007/s00170-014-6576-y
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The implementation of computerised condition monitoring systems for the detection cutting tools’ correct installation and fault diagnosis is of a high importance in modern manufacturing industries. The primary function of a condition monitoring system is to check the existence of the tool before starting any machining process and ensure its health during operation. The aim of this study is to assess the detection of the existence of the tool in the spindle and its health (i.e. normal or broken) using infrared and vision systems as a non-contact methodology. The suggested technique is based on ‘learning from experience’ concept. The application of principal component analysis (PCA) and discrete wavelet transform (DWT) combined with neural networks is investigated using both types of data in order to establish an effective and reliable novel software program for tool tracking and health recognition. Infrared and visual cameras are used to locate and track the cutting tool during the machining process using suitable analysis and image processing algorithms. The capabilities of PCA and DWT combined with neural networks are investigated in recognising the tool’s condition by comparing the characteristics of the tool to those of known conditions in the training set. The experimental results have shown high performance when using the infrared data in comparison to visual images for the selected image and signal processing algorithms for these suggested self-learning techniques.