Inductive signal couplers for a wire feeder mobile gateway in shipyard-IoT
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초록
This study proposes a networking solution for Internet of Things (IoT) implementation in shipyards with poor fixed or wireless communication infrastructure. Adding non-contact power line communication (PLC) functionality to the wire feeder and single cable allows them to serve as a mobile gateway. Considering the high current variations in welding cables, the electromagnetic characteristics of the inductive signal coupler are simulated using COMSOL software, the magnetic flux density distribution is visual-ized, and conditions for magnetic flux saturation are proposed. In the magnetic flux saturation state, the induced electromotive force in the secondary coil decreases, thereby significantly reducing the communication bandwidth. The fabricated signal coupler maintains a 0.2 mm air gap, securing a bandwidth of > 15 Mbps even at line currents of 90 A.
Abstract
This study proposes a networking solution for Internet of Things (IoT) implementation in shipyards with poor fixed or wireless communication infrastructure. Adding non-contact power line communication (PLC) functionality to the wire feeder and single cable allows them to serve as a mobile gateway. Considering the high current variations in welding cables, the electromagnetic characteristics of the inductive signal coupler are simulated using COMSOL software, the magnetic flux density distribution is visual-ized, and conditions for magnetic flux saturation are proposed. In the magnetic flux saturation state, the induced electromotive force in the secondary coil decreases, thereby significantly reducing the communication bandwidth. The fabricated signal coupler maintains a 0.2 mm air gap, securing a bandwidth of > 15 Mbps even at line currents of 90 A.
참고문헌 (11)
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