The Integration of LwM2M and OPC UA: An Interoperability Approach for Industrial IoT

Over the past years, Internet of Things (IoT) has been emerging with connected and smart things that can communicate with each other and exchange information. Similarly, with the emergence of Industry 4.0, the industrial world is also undergoing a strong evolution by connecting devices, sensors and machines to the Internet. In this paper, we investigate the integration of these two domains and examine the interconnection of two of the promising interoperability standards in these domains, namely OPC Unified Architecture and Lightweight Machine-to-Machine (LwM2M) protocol. For this purpose, we introduce an efficient and scalable approach, based on Docker Containers, for the cross-domain integration and interoperation. Besides, we also demonstrate and validate our interoperability approach by means of real world implementations and also theoretical and practical analysis.