Desenvolvimento de protótipo para supervisão de concentração de Gás Liquefeito de Petróleo em processos industriais utilizando o Reference Architectural Model for Industrie 4.0

Abstract

The present work presents the development of a prototype device for monitoring Liquefied Petroleum Gas (LPG), applied to industrial processes, compatible with Industry 4.0 (I4.0) using the Reference Architectural Model for Industrie 4.0 (RAMI 4.0). This work justifies the relevance of LPG in the industry and the inadequacy of existing devices for the concepts of I4.0. The development of the LPG concentration supervision prototype includes an embedded OPC UA server, responsible for making the data of interest available to an Asset Administration Shell (AAS). To monitor LPG, an MQ-06 sensor is used and as a processing core an ESP-CAM development board, containing an ESP32-S microcontroller. As defined by RAMI 4.0, a prototype AAS was developed; for this purpose, the AASX Package Explorer program and the python opcua-asyncio library were used. This AAS has the function of making the prototype information available to any other component that needs it. This information ranges from operational data, such as LPG concentration, to technical documents, such as the prototype's electrical diagram. One of the components that consults the data present in the AAS is a dashboard, which, with a set of displays, shows this data graphically, allowing real-time monitoring. To validate the system, functional tests were carried out, which consisted of exposing the prototype to LPG and verifying the information presented in the AAS and on the dashboard. The results obtained through the tests carried out showed that the prototype is compatible with RAMI 4.0, in addition to allowing real-time monitoring of LPG concentration.