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A CNC Machine Fault Diagnosis Methodology based on Bayesian Networks and Data Acquisition

Abdelkabir Bacha, Jamal Benhra, Ahmed Haroun Sabry. Published in Networks.

Communications on Applied Electronics
Year of Publication: 2016
Publisher: Foundation of Computer Science (FCS), NY, USA
Authors: Abdelkabir Bacha, Jamal Benhra, Ahmed Haroun Sabry

Abdelkabir Bacha, Jamal Benhra and Ahmed Haroun Sabry. A CNC Machine Fault Diagnosis Methodology based on Bayesian Networks and Data Acquisition. Communications on Applied Electronics 5(8):41-48, August 2016. BibTeX

	author = {Abdelkabir Bacha and Jamal Benhra and Ahmed Haroun Sabry},
	title = {A CNC Machine Fault Diagnosis Methodology based on Bayesian Networks and Data Acquisition},
	journal = {Communications on Applied Electronics},
	issue_date = {August 2016},
	volume = {5},
	number = {8},
	month = {Aug},
	year = {2016},
	issn = {2394-4714},
	pages = {41-48},
	numpages = {8},
	url = {},
	doi = {10.5120/cae2016652353},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


In this work, a Bayesian Networks based fault diagnosis system for industrial machines is proposed. For this purpose, an experimental setup of a CNC machine is given as a test rig. This fault diagnosis system is composed of three levels: The first level concerns a set of sensors that are connected directly to the machine’s main organs. The second level is a microcontroller based data acquisition interface that calibrates and transfers the measured data to the third level. The last level is a set of machine learning algorithms that are executed in a computer. These algorithms perform BN structure learning and exploit this structure for classifying the new arrival data from the CNC machine and determining if it presents a faulty or a normal situation.


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Fault diagnosis, Fault detection, Bayesian Networks, CNC machine, Flexible manufacturing, Data acquisition.