AR Digital Twin Coordinate Translation for Building Location Accuracy
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Solution Overview
Problem
Existing augmented reality (AR) systems in building environments face challenges in accurately determining their location within the building, leading to potentially inaccurate or incomplete information displayed to users.
Innovation Solution
A system that translates coordinates between the AR system's coordinate system and the building's coordinate system using a digital twin, which includes a contextual description of the environment, allowing for accurate display of information based on the translated coordinates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an augmented reality system is deployed in a building environment, then information can be displayed to users, but the location of the AR system within the building is difficult to determine accurately
Solution Approach 1:
The patent introduces a digital twin as an intermediary between the AR system and the building management system. The digital twin contains a contextual description of the environment including coordinate transformations, allowing the AR system to accurately determine its location without direct complex integration with the building's coordinate system. The digital twin mediates the coordinate transformation from the AR system's coordinate system to the building's coordinate system, resolving the technical contradiction by adding an intermediary layer rather than directly solving the complex coordinate alignment problem.
2Reliability
If coordinate translation is performed using a digital twin, then accurate location information can be obtained, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing the digital twin with the building's contextual description, coordinate system definitions, and transformation relationships before the AR system needs to determine its location. The digital twin is configured in advance with all necessary spatial reference information, so when the AR system queries for location information, the coordinate translation can be performed directly without real-time complex calculations. This preliminary setup reduces the runtime complexity while maintaining high reliability in information display accuracy.
3Measurement precision
If the AR system determines its location independently, then the system operation is simple, but the displayed information may not be accurate or complete
Solution Approach 1:
The patent implements feedback by having the AR system query the digital twin for its location based on coordinates it independently determines, and the digital twin responds with translated coordinates and contextual information. The AR system uses this feedback information to display accurate and complete building-specific information. This feedback loop allows the AR system to maintain operational simplicity while achieving high information accuracy through continuous verification and correction against the authoritative digital twin data.
Data Source
AI summary
A system can operate to receive an indication of a point in a space of an environment, wherein an augmented reality system is located in the space of the environment at a coordinate in a first coordinate system. The system can operate to query a digital twin for a coordinate of the point in a second coordinate system, the digital twin including a contextual description of the environment. The system can operate to translate the coordinate of the augmented reality system in the first coordinate system to a coordinate of the augmented reality system in the second coordinate system based on the coordinate of the point in the second coordinate system and the coordinate of the augmented reality system in the first coordinate system. The system can operate to generate data to cause the augmented reality system to display information based at least in part on the translation.