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IFC plus : Towards the integration of IoT into early stages of building design

Journal

AUTOMATION IN CONSTRUCTION
Volume 136, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.autcon.2022.104129

Keywords

IFC; Internet of things; Building information modelling (BIM); Smart buildings; Industry foundation classes; IFC; Building design; Building models

Funding

  1. Spanish Ministerio de Ciencia, Innovacion y Universidades [RTI2018-100754-B-I00, RTI2018-098160-B-I00]
  2. COST Action [CA19134]

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The integration of IoT technologies into BIM offers opportunities for smart spaces in buildings. However, current approaches only integrate IoT devices after the building is constructed. This paper presents a solution to integrate IoT devices into the early stages of building design, using IFC+ and a digital object-based approach.
The integration of Internet of Things (IoT) technologies into Building Information Modelling (BIM) provides significant opportunities to support useful services and functionalities for end users in buildings, enabling socalled smart spaces (e.g. smart buildings and smart homes). Current approaches perform this integration to access the deployed IoT devices once the building is constructed using Building Automation Systems (BAS), Building Information Systems (BIS) and Building Control Systems (BCS). Thus, the integration of IoT devices into the early stages of building design to describe IoT scenarios and IoT practices is still neglected, despite the benefits it can provide by being involved in the entire building lifecycle, e.g. cost estimation, stronger facility management, collaborative approach, simplification of tasks for developers/programmers through the integration with BIS, BAS and BCS, and a more holistic management of the IoT infrastructure. This paper presents a solution to integrate IoT into the design stage (modelling) of buildings in BIM processes, through two main contributions: Industry Foundation Classes Plus (IFC+), an extension to the latest version of IFC where new types of entities have been added to support the modelling of IoT scenarios; and a digital object based approach to transform smart-built environment specifications in IFC+ into consumable software, with the aim of supporting IoT scenarios. This paper illustrates the applicability of the proposed method in the context of design processes, the metamodel (schema) of IFC+, the proposed approach, and a proof of concept with a clarifying use case.

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