Smart facility management systems utilizing open BIM and augmented/virtual reality

Building Information Modeling (BIM) is a technique in which a three-dimensional (3D) building model is constructed and designed in a computer. In recent years, BIM has been widely used in design and construction phases, but it has not been widely used in operation and maintenance phases, which account for the largest part of the building life cycle. The information required in BIM is different in each of the phases of design, construction, operation, and maintenance, and there are many pieces of reproduced information, making it difficult for managers to utilize the information. Although a number of studies have been conducted on combination of BIM with various technologies such as Internet of Things (IoT) and advanced sensing equipment in operation and maintenance, and interlinking of the obtained information with BIM information, there have been difficulties in commercialization and field application. This study aims to determine the problems found in previous studies and propose a fusion process in which new technologies adopt and utilize virtual reality techniques such as augmented reality (AR), mixed reality (MR), and head-mounted displays (HMDs) in existing maintenance work, thereby increasing maintenance work efficiency and further improving the utilization of BIM.