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Sensors 2017, 17(3), 469; doi:10.3390/s17030469

A Wireless Sensor System for Real-Time Monitoring and Fault Detection of Motor Arrays

1
Department of Electronic Engineering, Computers, and Automation, University of Huelva, Ctra Huelva - La Rábida, s/n, 21819 Huelva, Spain
2
Department of Electrical and Thermal Engineering, University of Huelva, Ctra Huelva - La Rábida, s/n, 21819 Huelva, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Gonzalo Pajares Martinsanz
Received: 27 December 2016 / Revised: 16 February 2017 / Accepted: 21 February 2017 / Published: 25 February 2017
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2016)

Abstract

This paper presents a wireless fault detection system for industrial motors that combines vibration, motor current and temperature analysis, thus improving the detection of mechanical faults. The design also considers the time of detection and further possible actions, which are also important for the early detection of possible malfunctions, and thus for avoiding irreversible damage to the motor. The remote motor condition monitoring is implemented through a wireless sensor network (WSN) based on the IEEE 802.15.4 standard. The deployed network uses the beacon-enabled mode to synchronize several sensor nodes with the coordinator node, and the guaranteed time slot mechanism provides data monitoring with a predetermined latency. A graphic user interface offers remote access to motor conditions and real-time monitoring of several parameters. The developed wireless sensor node exhibits very low power consumption since it has been optimized both in terms of hardware and software. The result is a low cost, highly reliable and compact design, achieving a high degree of autonomy of more than two years with just one 3.3 V/2600 mAh battery. Laboratory and field tests confirm the feasibility of the wireless system. View Full-Text
Keywords: fault detection; IEEE 802.15.4; wireless sensor network; motor current analysis; guaranteed time slot (GTS); beacon-enabled mode fault detection; IEEE 802.15.4; wireless sensor network; motor current analysis; guaranteed time slot (GTS); beacon-enabled mode
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Medina-García, J.; Sánchez-Rodríguez, T.; Galán, J.A.G.; Delgado, A.; Gómez-Bravo, F.; Jiménez, R. A Wireless Sensor System for Real-Time Monitoring and Fault Detection of Motor Arrays. Sensors 2017, 17, 469.

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