Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Gateway platform for interoperability between OPC UA Publisher and DDS Subscribers

OPC UA Publisher와 DDS Subscriber의 상호운용성을 위한 게이트웨이 플랫폼

  • Sim, Woong-Bin (Dept. of Electronics and Computer Engineering, Seokyeong University) ;
  • Song, Byung-Kwen (Dept. of Electronics Engineering, Seokyeong University) ;
  • Shin, Jun-Ho (Smart Manufacturing Research Center, Korea Electronics Technology Institute)
  • Received : 2021.05.13
  • Accepted : 2021.06.08
  • Published : 2021.06.30
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Abstract

OPC UA at the control and field level does not provide enough performance to replace the field bus. The OPC Foundation aims for a real-time and connection-less mechanism, and has added the OPC UA publish-subscribe model, a new specification that supports broker functions such as MQTT and AMQP, as the OPC UA Part 14 standard. This paper is about a gateway for interoperability between OPC UA publisher with the addition of OPC UA Part14 standard and DDS subscribers. Raspberry Pi 4 is used for the gateway proposed in this paper, and OpenDDS, an open source, is used for DDS. OPC UA publish-subscribe module used A-Open62541 publish-subscribe module, which additionally implements functions not provided by the corresponding source based on Open62541 publish-subscribe open source.

제어 및 필드 레벨에서의 OPC UA는 필드 버스를 대체할 만큼의 충분한 성능을 제공하지 못한다. OPC 협회는 실시간 및 비연결 메커니즘을 지향하고, MQTT나 AMQP와 같이 브로커 기능을 지원하는 새로운 사양인 OPC UA 발행-구독 모델을 OPC UA Part14 표준으로 추가하였다. 본 논문은 OPC UA Part14 표준을 추가한 OPC UA 발행자와 DDS 구독자 간에 상호운용성을 위한 게이트웨이에 관한 내용이다. 본 논문에서 제안한 게이트웨이는 라즈베리파이 4를 사용하였으며, DDS는 오픈 소스인 OpenDDS를 사용하였다. OPC UA 발행-구독 모듈은 Open62541 발행-구독 오픈 소스를 기반으로 해당 소스에서 제공하지 않는 기능을 추가 구현한 것인 A-Open62541 발행-구독 모듈을 사용하였다.

Keywords

Acknowledgement

This study was funded by the Ministry of Environment and supported by the Korea Institute of Environmental Industry and Technology's Safety Management Technology Development Project (2020002970006).

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