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스마트 조선소를 위한 사물인터넷 기반 용접 작업장 센서네트워크 구축

Implementation of a Sensor Network in a Welding Workplace Based on IoT for Smart Shipyards

  • 투고 : 2021.01.24
  • 심사 : 2021.02.15
  • 발행 : 2021.03.31

초록

본 논문에서는 사물인터넷을 이용하여 조선소의 작업장 단위로 센서네트워크를 구축하는 방안을 제시한다. 여기서는 조선소에서 가장 흔한 용접 작업장에서 조선블록을 통신매체로 활용하여 작업자의 위치, 용접 진행률, 작업 시간 등의 정보를 LoRa와 전력선통신을 이용하여 서버로 전송한다. 이와 같은 데이터통신을 위하여 유도성 커플러와 복합통신용 모뎀을 제작하여 와이어피더와 핀지그에 설치하여 센서네트워크를 구축하였다. 시험 결과, 제시된 시스템은 약 98% 이상의 데이터 전송 성공률과 작업자 위치 인식 성공률을 가지는 것으로 나타났다. 또한, 현장에서 발생된 작업 데이터는 실시간 기록과 디스플레이가 가능함을 공정관리시스템 플랫폼을 통하여 확인하였다. 제시된 시스템은 미래형 스마트 조선소 구축을 통한 우리나라 조선산업의 경쟁력 강화를 위한 단초가 될 것으로 사료된다.

In this paper, we propose a method to implement an IoT-based sensor network for each workplace of a shipyard. Here, at the most common welding workplace in shipyards, the shipbuilding blocks are used as a communication medium to transmit information such as the worker's location, welding progress, and working hour to a server using LoRa and powerline communication. To achieve the data communication, inductive couplers and hybrid modems have been manufactured and installed on wire feeders and pin jigs to establish a sensor network. As a result of field test, the proposed system shows a success rate of data transmission and a rate of successful recognition of worker's location of about 98% or more. In addition, the process management system platform can record and display the work process data generated at the field in real time. The proposed system can be a starting point for enhancing the competitiveness of Korean shipbuilding industry through the establishment of a smart shipyard.

키워드

참고문헌

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