Robotic Construction Layout With AR Metadata Overlays
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Solution Overview
Problem
Existing construction layout methods are limited by the need for manual or robotic marking of metadata, which is time-consuming, prone to errors, and difficult to maintain in dirty or obstructed environments, often leading to outdated data and reduced efficiency.
Innovation Solution
A system using robotic marking and augmented-reality metadata, where only high-precision points are physically marked, and metadata is maintained digitally, allowing for real-time updates and visualization through augmented-reality devices, reducing the need for physical marking and enhancing accuracy and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual or robotic marking of metadata is performed physically, then the data is permanently recorded on site, but the process is time-consuming and prone to errors
Solution Approach 1:
The patent uses augmented reality to create a virtual copy of the metadata that overlays the physical construction site. Instead of physically marking each metadata point, the system projects digital metadata through AR devices, allowing workers to view and interact with accurate data without the time-consuming process of physical marking. This resolves the contradiction by maintaining data accuracy while eliminating the time loss associated with manual or robotic marking.
Solution Approach 2:
The patent replaces the mechanical marking system (physical markers, spray paint, or robotic marking) with an optical/digital system using augmented reality headsets. The AR device projects metadata directly into the worker's field of view, substituting the mechanical marking process with a digital visualization system that is both faster and more accurate, thereby resolving the time-consuming nature of physical marking while maintaining reliability.
2Reliability
If physical marking of metadata is performed in dirty or obstructed environments, then the data is recorded, but the markings become outdated or difficult to maintain
Solution Approach 1:
The patent creates a virtual copy of the metadata through augmented reality projection that can be updated in real-time without being affected by environmental conditions. Unlike physical markings that can be obscured by dirt or damage, the AR metadata remains clear and updatable, allowing workers to always access current information regardless of the construction environment's cleanliness or obstruction level.
Solution Approach 2:
The patent implements a dynamic metadata system where the AR projection can be updated in real-time as design changes occur or new information becomes available. This dynamic nature allows the metadata to remain current and relevant throughout the construction process, unlike static physical markings that become outdated. The system adapts to environmental conditions by maintaining digital clarity rather than degrading like physical markers.
3Loss of information
If all points and metadata are physically marked, then complete information is available on site, but the complexity and cost of the marking process increases
Solution Approach 1:
The patent uses augmented reality to project complete metadata information virtually onto the construction site without requiring physical marking of every data point. The AR system displays all necessary metadata comprehensively in the worker's field of view, maintaining information completeness while eliminating the need for complex physical marking equipment and processes. This reduces device complexity while preserving full metadata availability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases the speed and accuracy of point marking, reduces downtime and costs, and allows for real-time updates of metadata, improving the efficiency and precision of construction layout processes.
Implementation Method 1
a robotic total station marks out points in a construction site within a pre-established accuracy
Implementation Method 2
points are marked in the construction site within a pre-established accuracy using a robotic total station
Implementation Method 3
aligning the internal map of the augmented-reality device to the construction site by comparing locations of points in the internal map to data from the building plan
Data Source
AI summary
Marking metadata during layout can be time intensive. A robotic device is used to mark out points at a construction site, and an augmented-reality device uses the points for alignment and provides metadata about the points to a user of the augmented-reality device as the user looks at the points.