Building Management System and IoT technology: data analysis and standard communication protocols for Building Information Modeling.

The study focuses on the analysis of building management system (BMS), also known as building automation control system (BAS - BACS), which refers to a computer-based control system installed inside buildings to monitor and operate electrical and mechanical equipment. The development of new technologies has led to the emergence of smart buildings, that can collect data from devices and sensors using IoT (The Internet of Things) solutions. Thanks to Building Information Modeling (BIM), the successful adoption of these new digital technologies has been used increasingly in construction and facilities management. Despite the implicit integration of different systems, severe interoperability issues affect the integration of BMS operating on different fields. One often has to deal with various communication protocols and proprietary BMS platforms that use different communication modes. This document aims to analyze the data exchange between BMS and BIM through the study of file formats exported by the platforms to create an integration of IFC (Industry Foundation Classes) schema in BMS platforms, specifically using the BACnet protocol. In this way, it is proposed to use the existing standard (IFC) as a foundation for integrating communication between multiple platforms. This approach aims to streamline modes of communication and facilitate the creation of a digital twin.