Overview
The application of Building Information Modeling (BIM) during the operation and maintenance phase addresses the limitations of traditional two-dimensional management systems. It enables users to gain a clear and intuitive understanding of operation and maintenance objects. Additionally, the extensive building-related data stored within BIM can be leveraged to enhance the efficiency of operation and maintenance processes.
Currently, research on BIM applications in operation and maintenance is underway both domestically and internationally, with several companies and organizations developing BIM-based operation and maintenance systems. This article summarizes potential challenges faced by these systems, drawing from a BIM operation and maintenance system development project. After reviewing relevant information technology, corresponding technical solutions were explored. The concept of an intelligent BIM operation and maintenance system integrating cloud and Internet of Things (IoT) technologies to optimize efficiency has been proposed.
BIM-Based Operation and Maintenance Management System
1.1 Building Information Modeling (BIM)
BIM stands for Building Information Modeling. There are multiple definitions of BIM, but the US National BIM Standard offers a comprehensive explanation (He Guanpei, Wang Yiqun, Ying Yuken, “BIM Overview”):
BIM is a digital representation of the physical and functional characteristics of a facility (construction project). It serves as a shared knowledge resource and a process for sharing information about a facility, providing a reliable basis for all decisions throughout the facility’s lifecycle—from conception to demolition. At different project stages, various stakeholders collaborate by adding, extracting, updating, and modifying information within BIM to support and fulfill their individual responsibilities.
Practically, BIM can be interpreted from different perspectives:
(1) In project management, BIM represents the information management provided and shared by all project participants, ensuring the right people receive accurate information at the right time.
(2) For project teams, BIM embodies a collaborative delivery process, defining how and how many teams work together to design, build, and operate projects.
(3) For designers, BIM promotes integrated design, encourages innovation, optimizes technical solutions, facilitates feedback, and enhances team skills.
1.2 BIM-Based Operation and Maintenance System
BIM-based operation and maintenance systems combine 3D BIM models with traditional management practices, utilizing the vast amount of building data stored in BIM to improve data utilization. These systems overcome the abstract nature of traditional operation and maintenance systems by providing three-dimensional visualization of building information, giving operators an intuitive and clear understanding of maintenance objects.
Moreover, BIM-based 3D systems enable functionalities that traditional systems cannot achieve. For example, during building renovations or expansions, operators can easily identify hidden pipelines, load-bearing walls, and other internal features by locating corresponding elements in the BIM system—avoiding reliance on traditional 2D drawings.
1.3 Potential Challenges of BIM-Based Operation and Maintenance Systems
From participation in a BIM-based operation and maintenance system project, the author observed that despite BIM systems overcoming many traditional limitations and enabling new capabilities, some challenges remain that may hinder the system’s full potential. These challenges mainly fall into three categories:
(1) Data Collection: Operation and maintenance involve managing diverse objects, including buildings, spaces, facilities, and equipment. Manual data collection is labor-intensive, especially for processes outside the system’s direct use, such as structural monitoring where personnel must measure and input data manually. Although centralized management facilitates data queries and prevents loss, the increased workload may reduce user motivation, impacting data accuracy and timeliness.
(2) Spatial Positioning: While BIM’s 3D models improve object visualization, relying solely on them does not fully resolve spatial positioning challenges, particularly with large or unnumbered objects. For instance, identifying specific curtain wall panels requires manual cross-referencing of system numbering rules, complicating accurate data entry and retrieval.
(3) System Performance: BIM 3D models contain extensive graphic and data content, demanding substantial computing power. This issue is more pronounced in large buildings, where insufficient processing capacity can cause system slowdowns, undermining system effectiveness.
1.4 Technical Solutions
Emerging information technologies offer solutions to these challenges. IoT can facilitate automatic data collection and spatial positioning by establishing operation and maintenance IoT networks. Cloud technology can address system performance issues by providing scalable computing and storage resources, enhancing system responsiveness.
Exploring Cloud Technology in BIM-Based Operations Management Systems
2.1 Cloud Technology
Cloud technology encompasses network, information, integration, management platform, and application technologies applied in cloud computing-based business models. Cloud computing integrates traditional computer and network technologies such as grid computing, distributed computing, virtualization, and load balancing to form a powerful system distributed via models like SaaS (Software as a Service), PaaS (Platform as a Service), and IaaS (Infrastructure as a Service) (Baidu Baike).
A core concept of cloud computing is reducing client-side processing by enhancing the cloud’s capabilities, allowing user devices to act as simple input/output terminals while accessing powerful computing resources on demand. Its key characteristics include:
(1) Data Security and Reliability: Provides highly reliable and secure data storage, mitigating concerns about data loss or virus attacks.
(2) Low Client Requirements: Minimal demands on user devices, ensuring easy access.
(3) Easy Data Sharing: Facilitates seamless data sharing across different devices.
2.2 Cloud Technology Applications in BIM-Based Operation and Maintenance Systems
At the 2011 “Advanced Seminar on Building Information Modeling (BIM) System Construction and Technical Application,” Miklos Szovenyi Lux, Vice President of Graphisoft, highlighted three major BIM development trends: BIM-cloud computing integration, network technology integration, and mobile technology promotion. These trends promise more collaborative, convenient BIM applications.
For example, Little Diversified Design Consulting Company developed an IT cloud framework within a BIM system to address BIM’s computing power demands.
In BIM-based operation and maintenance systems, cloud technology addresses the high computational load caused by 3D models. Because cloud technology requires low client resources and supports easy data sharing, users can operate BIM systems effectively on standard computers. This also lays the groundwork for data sharing across multiple devices in the future.
Exploring IoT Applications in BIM-Based Operation and Maintenance Systems
3.1 Internet of Things (IoT)
IoT is a key component of next-generation information technology. It connects “things” to the internet, enabling communication and information exchange through technologies such as RFID, infrared sensors, GPS, and laser scanners. This network facilitates intelligent identification, positioning, tracking, monitoring, and management of objects (Baidu Encyclopedia).
Key IoT technologies include:
(1) RFID (Radio Frequency Identification): A mature technology focused on equipment development. For instance, Germany’s SICK Sensor Company combines RFID with WVGA omnidirectional shutter imaging to create the Lector620 barcode reader, widely used in industrial settings. In China, Yuanwanggu Company’s XCYT-002 product features an active dual-band tag with extended read/write range.
(2) Wireless Sensor Networks (WSN): Multi-hop wireless networks consisting of numerous inexpensive micro-sensor nodes deployed near monitored objects. For example, Bonner’s Sure Cross wireless network includes nodes and transmitters serving as platforms for remote signal testing. China’s Tianjin video software company developed the WiEye TelosB wireless module sensor board, compatible with standard protocols and equipped with sensors like light and sound, representing foundational IoT innovation.
3.2 IoT Applications in BIM-Based Operation and Maintenance Systems
IoT can address data collection and spatial positioning challenges in BIM-based systems through:
(1) Automatic Data Collection: Wireless sensor networks can automatically gather data such as temperature, humidity, and electrical current, enabling intelligent monitoring and management of operation and maintenance services.
(2) Spatial Positioning: For data not detectable by sensors (e.g., coating degradation or sealing material aging), technologies like RFID or GPS combined with handheld devices enable precise location tracking of maintenance targets, simplifying system operations and improving efficiency and data accuracy.
Conclusion
BIM is gaining increasing attention within the Architecture, Engineering, and Construction (AEC) industry, while IoT and cloud technologies are prominent in information technology. The potential for IoT applications in operation and maintenance systems is recognized, though cloud technology’s integration with BIM remains in its early stages. There is limited discussion combining these three technologies.
Drawing from practical BIM operation and maintenance projects, this article identifies potential challenges and proposes leveraging IoT and cloud technologies to address them. This approach aims to enable operation and maintenance systems to achieve their goals efficiently, delivering timely and accurate management services.
Combining BIM, cloud computing, and IoT facilitates efficient system operation, 3D visualization, automatic data collection, and spatial positioning. Effective integration of these technologies could create a highly intelligent and efficient operation and maintenance system, maximizing system potential. The author hopes this article sparks interest and collaboration among experts to advance the development of such systems.
Must log in before commenting!
Sign Up