A proposal to improve interoperability in the Industry 4.0 based on the Open Platform Communications Unified Architecture standard

The introduction of the Industrial Internet of Things in the factory environment is one of the most important features requirements of the fourth industrial revolution. The main aim In order to realize this, is the integration of the sensor and actuators devices based on the Internet of Things domain with the industrialcontrol and monitoring applications used for the factory processes must be done. This goal may be reached only if What is required is interoperability between the communication protocols existing in the domains of industrial applications and the domain of the Internet of Things devices is achieved. Interoperability must involve the communication pro-tocols adopted in the two domains. Open Platform Communications Unified Architecture (OPC UA) is considered one of the main reference communication standards in Industry 4.0 among industrial applications. In the Internet of Things domain, the Considering the OPC UA and the oneM2M communication protocol has been defined for solving the current fragmentation of this domain in the information exchange between sensor and actuator devices. Interoperability be-tween these two communication protocols may allow integration of the industrial applications with Internet of Things-based devices. s in the industrial and Internet of Things domains, respec-tively, tThe current state-of-the-art does not present any interoperability solution to allow that information produced by oneM2M IoT-based devices could be consumed by OPC UA industrial applications. In order to reach this aim, the paper proposes a novel solution based on the use of a standard interworking proxy. The paper will describe this solution and the relevant software implementation.