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http://dx.doi.org/10.46670/JSST.2022.31.1.64

Development of a LoRaWAN-based Real-time Ocean-current Draft Observation System using a multi-GPS Triangulation Method Correction Algorithm  

Kang, Young-Gwan (Dept of Electronics and Communica tion Engineering, Korea Marine And Ocean University)
Lee, Woo-Jin (Daeyang Instrument Co., LTD.)
Yim, Jae-Hong (Dept of Electronics and Communica tion Engineering, Korea Marine And Ocean University)
Publication Information
Journal of Sensor Science and Technology / v.31, no.1, 2022 , pp. 64-68 More about this Journal
Abstract
Herein, we propose a LoRaWAN-based small draft system that can measure the ocean current flow (speed, direction, and distance) in real time at the request of the Coast Guard to develop a device that can promptly find survivors at sea. This system has been implemented and verified in the early stages of rescue after maritime vessel accidents, which are frequent. GPS signals often transmit considerable errors, so correction algorithms using the improved triangulation method algorithm are required to accurately indicate the direction of currents in real time. This paper is structured in the following manner. The introduction section elucidates rescue activities in the case of a maritime accident. Chapter 2 explains the characteristics and main parameters of the GPS surveying technique and LoRaWAN communication, which are related studies. It explains and expands on the critical distance error correction algorithm for GPS signals and its improvement. Chapter 3 discusses the design and analysis of small draft buoys. Chapter 4 presents the testing and validation of the implemented system in both onshore and offshore environments. Finally, Section 5 concludes the study with the expected impact and effects in the future.
Keywords
Multi GPS; Triangulation method correction algorithm; Ocean current; Drift observation system; LoRa communication;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 S. T. Nam, C. Y. Jin, and D. G. Kim, "A priority analysis on mobile telecom internet of things using the AHP (analytic hierarchy process)", J. Korea Ins. Inf. Commun. Eng., Vol. 21, No. 6, pp. 1191-1196, 2017.   DOI
2 S. Lim and K. Lee, "Preventing Communication Disruption based on LoRaWAN", 2017 Proc. Symp. Korean Institute Commun. Inf. Sci., Korea, pp. 509-510, 2017.
3 W. C. Jung, S. S. Lee, and J. H. Park, "Design of optimal snow melting system with snowfall image processing based on the IoT technology", Asia-pacific J. Multimed. Serv. Converg. Art Humanit. Soc., Vol. 5, No. 6, pp. 521-530, 2015.
4 H. Lee and D. Lee, "A Study on Localization System using 3D Triangulation Algorithm based on Dynamic Allocation of Beacon Node", J. Korean Institute Commun. Inf. Sci., Vol. 36, No. 4B, pp. 378-385, 2011.   DOI
5 S. Y. Kim, S. K. Park, and H. D. Choi, "Wide range IoT technology and standardization based on LPWA", Electron. Telecommun. Trends, Vol. 31, No. 2, pp. 95-106, 2016.
6 B. C. Fargas and M. N. Petersen, "GPS-free geolocation using LoRa in low-power WANs", Global Internet of Things Summit(GIoTS), pp. 1-6, Geneva, 2017.