Paper Title:
Wireless Sensor Failure Identification Technology for Thermal Monitoring System of NC Machine Tools Based on Bayesian Networks
  Abstract

Wireless sensors are increasingly adopted in mechanical systems to acquire and wirelessly transmit sensed information for machine condition monitoring. For wireless sensors on spindle, the reliability of the sensors system at high rotary speed is the key factor to guarantee the validity of monitoring. How to identify sensor failure accurately and timely is essential to enhance reliability of monitoring system. To address this issue, a novel method based on the BNs was presented to distinguish sensor failure from other transmission errors. The method described causal relationships of factors inducing sensor failure by graph theory and deduced sensor failure by Bayesian statistical techniques. Experiments carried on NC machining center prove the validity of this approach.

  Info
Periodical
Key Engineering Materials (Volumes 467-469)
Edited by
Dehuai Zeng
Pages
1832-1837
DOI
10.4028/www.scientific.net/KEM.467-469.1832
Citation
X. H. Yao, Z. Y. He, J. Z. Fu, Z. C. Chen, "Wireless Sensor Failure Identification Technology for Thermal Monitoring System of NC Machine Tools Based on Bayesian Networks", Key Engineering Materials, Vols. 467-469, pp. 1832-1837, 2011
Online since
February 2011
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Price
$32.00
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