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Seawater Battery-Based Wireless Marine Buoy System with Battery Degradation Prediction and Multiple Power Optimization Capabilities

Author(s)
Cho, JeonghoonKim, Myeong WooKim, YoungjinPark, Jeong-SunLee, Do-HeeKim, YoungsikKim, Jae Joon
Issued Date
2021-07
DOI
10.1109/ACCESS.2021.3098846
URI
https://scholarworks.unist.ac.kr/handle/201301/53250
Fulltext
https://ieeexplore.ieee.org/document/9492090
Citation
IEEE ACCESS, v.9, pp.104104 - 104114
Abstract
This paper presents a wireless marine buoy system based on the seawater battery (SWB), providing self-powered operation, power-efficient management, and degradation prediction and fault detection. Since conventional open circuit voltage (OCV) methods cannot be applied due to inherent cell characteristics of SWB, the coulomb counting (CC) method is adopted for the state of charge (SOC) monitoring. For the state of health (SOH), a variance-based detection scheme is proposed to provide degradation prediction and fault detection of the SWB. The self-powered operation is augmented by two proposed power optimization schemes such as multiple power management and three-step LED light control. A wireless buoy system prototype is manufactured, and its functional feasibility is experimentally verified, where its location and SOC are periodically monitored in a smartphone-based wireless platform.
Publisher
Institute of Electrical and Electronics Engineers Inc.
ISSN
2169-3536
Keyword (Author)
DegradationBatteriesWireless communicationState of chargeOptimizationLight emitting diodesFault detectionBuoy systemseawater batterycoulomb countingself-powereddegradation predictionfault detectionmultiple power optimizationstate of chargevariance-based detection
Keyword
HIGH-ENERGY DENSITYSTATEMECHANISM

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