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Effective Range Evaluation of Wireless Monitoring System for Monopile  

Park, Kiwon (고려대학교 건축사회환경공학부)
Lee, Jong-Sub (고려대학교 건축사회환경공학부)
Choi, Changho (한국건설기술연구원 Geo인프라연구실)
Byun, Yong-Hoon (고려대학교 건축사회환경공학부)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.6, 2012 , pp. 91-100 More about this Journal
Abstract
Wireless monitoring system for the structural health evaluation has a limit to the reliability of measured response. The objective of this study is to evaluate an effective measurement range of the wireless monitoring system on the analyzed data. For the wireless monitoring system, Bluetooth and Wi-Fi are applied to datalogger-receiver and receiver-personal computer, respectively. For the model of the monopile structure response, a laboratory-scale monopile is manufactured with Mono Cast Nylon and a lateral loading is applied by hammer impacting. Strain gauges attached on the model monopile are connected with the datalogger. The distances of datalogger-receiver and receiver-personal computer are changed for the evaluation of the measurement range. Experimental results show that the receiving rates of the response remain almost constant within limited distance, while the receiving rates dramatically decrease out of effective range. In addition, the receiving rates affect on the measured natural frequencies of the model monopile. This study suggests that the effective range evaluation of the wireless monitoring system may be used for the determination of a monitoring distance to the monopile installed in the offshore wind farm.
Keywords
Bluetooth; Effective range; Receiving rates; Wi-Fi; Wireless monitoring system;
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Times Cited By KSCI : 1  (Citation Analysis)
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