Journal
MEASUREMENT
Volume 183, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2021.109856
Keywords
Machine condition monitoring; Wireless sensor nodes; Energy harvesting; Vibration energy; Thermal energy; Solar energy; RF energy; Acoustic energy
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This paper discusses the importance of wireless sensor nodes in machine condition monitoring and the potential for using energy harvesting technologies to make them autonomous. It also analyzes the advantages and disadvantages of energy harvesters and techniques, as well as the application challenges in WSNs.
Machine condition monitoring (MCM) plays an important role in reducing failure losses in the industry. Appropriate wireless sensor nodes (WSNs) used in MCM will allow the user to check the live status of machines. WSNs have numerous features, however, there are a lot of challenges in deploying the WSNs. One of the main challenges is the periodic replacement of batteries. Recently promising energy harvesting technologies have attracted the attention of researchers because of their potential to make the WSNs autonomous. This paper outlines the scopes of energy harvesters, potential ambient energy sources, and different energy harvesting techniques along with their advantages and disadvantages. In addition, various energy harvesting approaches established for WSNs have been reviewed and compared to enable easy selection of the best possible approach for MCM system. To provide intuition into future research prospects, the challenges faced by energy harvesting systems are summarized.
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