BAS-BIM Mapping for 3D Building Equipment Control
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Solution Overview
Problem
Current building automation systems (BAS) face challenges in integrating data with building information models (BIM), resulting in low-quality graphics and inefficient management of building equipment, as they struggle to effectively combine dynamic BAS data with 3D graphical representations of buildings.
Innovation Solution
A system that includes a BAS-BIM integrator to receive BAS points from the network, integrate them with a BIM, and generate a user interface using an integrated BAS-BIM viewer, allowing users to view and control building equipment through a graphical 3D representation without manual graphics creation, by establishing mappings between BAS points and BIM objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If BAS data is integrated with BIM using a BAS-BIM integrator, then the quality of graphical representation and ease of operation are improved, but the device complexity increases
Solution Approach 1:
The patent introduces a BAS-BIM integrator as an intermediary component that bridges the BAS network and the BIM model. This integrator receives BAS points from the network, integrates them with corresponding BIM objects, and enables the integrated data to be displayed through the BAS-BIM viewer. By placing this intermediary layer, the system achieves seamless integration and improved ease of operation without requiring direct complex interactions between the BAS network and BIM model, thus managing device complexity effectively.
Solution Approach 2:
The BAS-BIM integrator serves multiple functions: it receives BAS points from the network, maps them to corresponding BIM objects, stores the mappings in a database, and provides integrated data to the viewer. This multi-functional component consolidates several operations into a single system element, improving ease of operation while avoiding the need for multiple separate complex systems.
2Productivity
If manual graphics creation is used for BAS interfaces, then device complexity is reduced, but productivity and quality of graphical representation deteriorate
Solution Approach 1:
The patent utilizes the existing BIM model as a copy or representation of the building's physical structure. Instead of manually creating graphics from scratch, the system copies the BIM model's graphical representation and integrates BAS data with it. This approach dramatically improves productivity by eliminating manual graphics creation while maintaining high-quality visual representation, with the BAS-BIM integrator handling the data integration automatically.
Solution Approach 2:
The BIM model is created in advance as a detailed digital representation of the building, including all structural and system components. This preliminary action of creating the BIM model before BAS integration eliminates the need for manual graphics creation later, improving productivity. The pre-created BIM model serves as the foundation for the integrated interface, reducing the complexity of subsequent operations.
3Measurement precision
If BAS points are integrated with BIM objects through mapping, then the accuracy of data representation is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The BAS-BIM integrator acts as an intermediary that manages the mapping between BAS points and BIM objects. It receives BAS points from the network, identifies corresponding BIM objects, and establishes mappings between them. This intermediary approach improves measurement precision by ensuring accurate data association while hiding the complexity of the mapping process from users, who simply interact with the integrated view without needing to understand the underlying mapping relationships.
Solution Approach 2:
The system provides feedback mechanisms that allow users to verify the integration of BAS data with BIM objects. The BAS-BIM viewer displays integrated information, allowing users to confirm that the correct data is associated with the appropriate objects. This feedback loop ensures measurement precision while reducing the difficulty of detecting and measuring integration accuracy, as users can visually verify the mappings without complex measurement procedures.
Data Source
AI summary
A building automation system (BAS) includes building equipment located within a building and a BAS network configured to facilitate communications between the building equipment. The building equipment operate to affect a variable state or condition within the building. The BAS includes a BAS-BIM integrator configured to receive BAS points from the BAS network and to integrate the BAS points with a building information model (BIM). The BIM includes a plurality of BIM objects representing the building equipment. The BAS includes an integrated BAS-BIM viewer configured to use the BIM with the integrated BAS points to generate a user interface. The user interface includes a graphical representation of the BIM objects and the BAS points integrated therewith.