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http://dx.doi.org/10.7471/ikeee.2021.25.1.95

A Study on Inductive Power Line Communication with Metal Block Channel  

Sohn, Kyung-Rak (Dept. of Electronics and Communications Engineering, Korea Maritime and Ocean University)
Kim, Hyun-Sik (Mattron Corp.)
Publication Information
Journal of IKEEE / v.25, no.1, 2021 , pp. 95-100 More about this Journal
Abstract
If we know the location of the hull block and the welding feeder in the shipyard, we can easily obtain the location information of the worker. That data is very useful for implementing a workplace safety monitoring system. However, it is difficult to apply a fixed communication network to the workplace due to the specificity of the hull structure and welding process. In this study, inductive power line communication, which can replace dedicated communication line, was reviewed. A ferrite core was used as an inductive coupler to be installed on the power cable of the welding machine, and a nano-crystalline core was applied as a coupler to be fastened to the support rod of the metal block. In order to visualize the operating principle of the proposed couplers, 3D modeling and finite element analysis were performed with the COMSOL AC/DC module. In the communication performance test using an aluminum profile, when the communication channel was formed by the contact of the welding electrode, the bandwidth was kept above 6 Mbps.
Keywords
Inductive coupler; Ferrite core; Nano crystalline; Hull block welding; power line communication;
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