Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Development of Wireless Data Transmission System for LPWA-based Industrial Sites

LPWA 기반 산업현장의 무선 데이터 전송 시스템 개발

  • Kwon, Hyuk (Department of Mechatronics Engineering, Korea University of Technology and Education) ;
  • Cho, Kyoung-Woo (Department of Electrical, Electronic and communication Engineering, Korea University of Technology and Education) ;
  • Oh, Chang-Heon (Department of Electrical, Electronic and communication Engineering, Korea University of Technology and Education)
  • 권혁 (한국기술교육대학교 메카트로닉스공학과) ;
  • 조경우 (한국기술교육대학교 전기전자통신공학과) ;
  • 오창헌 (한국기술교육대학교 전기전자통신공학과)
  • Received : 2018.01.05
  • Accepted : 2018.02.06
  • Published : 2018.02.28
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Abstract

Recently, there have been many studies on the IoT environment in which the sensors attached to the equipment automatically transmit and process the site information in real time through the network to control the equipment. The core of such a system is a network for data transmission and reception, and a wired network with wide transmission distance is a priority. However, in the case of a wired network, there is a problem that the time and cost consumed to configure the communication is higher than that of the wireless. In this paper, we propose LPWA - based wireless data transmission system using LPWA and BLE communication to solve this problem. The proposed system collects data from equipment through BLE and transmits data to the server using LPWA. Experimental results show that the spreading factor of maximum length of LPWA is 8, and the minimum length is 9.

최근 장비에 부착된 센서들이 네트워크를 통해 실시간으로 현장 정보를 전송하고 처리하여 장비를 제어하는 과정을 자동으로 수행하는 IoT 환경에 대한 연구가 다방면으로 진행되고 있다. 이러한 시스템의 핵심은 데이터 송수신을 위한 네트워크가 필수적인데 넓은 전송 거리를 가진 유선 네트워크가 우선 선택이 된다. 하지만 유선 네트워크의 경우 통신을 구성하기위해 소모되는 시간과 비용이 무선 보다 높은 문제가 존재한다. 본 논문에서는 이러한 문제를 해결하기 위해 LPWA와 BLE 통신을 이용한 LPWA 기반 산업현장의 무선 데이터 전송 시스템을 제안한다. 제안하는 시스템은 BLE를 통해 장비로부터 데이터를 수집하고 LPWA를 이용하여 서버로 데이터를 전송하는 시스템이다. 실험결과 LPWA로 전송할 수 있는 최대 길이의 확산인자(Spreading Factor)는 8인 것을 확인하였으며, 최소 길이에 대한 Spreading Factor는 9인 것을 확인할 수 있었다.

Keywords

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