Wearable Headset for Stereoscopic BIM Overlay on Construction Sites
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Solution Overview
Problem
Existing construction site management systems lack a portable and accurate method for displaying building information models in real-time, leading to inefficiencies, safety issues, and increased costs due to errors in interdependent subtasks and delayed information delivery.
Innovation Solution
A system comprising a network, system administrator, database, registration markers, and user devices with wearable computers and headsets that project a stereoscopic building information model based on the user's position and orientation, enabling accurate and timely access to construction information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If paper drawings or laptop computers are used to access construction information, then information can be accessed in the field, but the information is not displayed to scale and viewing is difficult leading to mistakes
Solution Approach 1:
The patent transitions from 2D paper drawings and laptop screens to a stereoscopic 3D virtual environment that matches the actual construction site geometry. This dimensional transformation allows workers to view construction information in its true spatial context, eliminating scaling issues and improving accuracy while maintaining ease of operation through intuitive visual representation.
Solution Approach 2:
The system creates a virtual copy of the construction site using Building Information Modeling (BIM) technology. This digital twin replicates the physical environment with precise geometric accuracy, allowing workers to access scaled, accurate representations of construction elements without leaving the site, thereby improving both display accuracy and viewing convenience.
2Reliability
If a consolidated building information model is employed, then coordination of tasks and schedules is improved, but the BIM is not easily accessible in the field and does not address schedules or query times
Solution Approach 1:
The patent implements a universal access system where workers can interact with the BIM model through multiple interfaces including mobile devices, wearable technology, and augmented reality glasses. This multi-platform approach maintains the reliability of centralized BIM coordination while dramatically improving field accessibility, allowing workers to query schedules, timelines, and construction data directly at the point of work.
Solution Approach 2:
The system introduces intermediate access points between the centralized BIM model and field workers. These intermediaries include cloud-based platforms, mobile applications, and wearable devices that retrieve and present relevant BIM information in context-specific formats, making the comprehensive BIM model accessible to individual workers without requiring them to access the full complex system directly.
3Productivity
If critical construction information is not easily available, then project completion is delayed, but implementing comprehensive information systems increases complexity
Solution Approach 1:
The patent segments the comprehensive BIM information system into context-relevant subsets that are delivered to workers based on their specific needs, location, and task. Rather than providing access to the entire complex BIM model, the system divides information into manageable, task-specific portions, improving productivity by delivering only relevant data while reducing the effective complexity each worker must navigate.
Solution Approach 2:
The system performs preliminary processing and contextualization of BIM information before delivery to workers. Schedules, timelines, and construction data are pre-organized and pre-filtered based on project phase, location, and worker role, so that when information is accessed in the field, it is immediately relevant and actionable, thereby improving project completion speed without requiring workers to navigate complex unprocessed data systems.
Data Source
AI summary
A preferred system and method for displaying a set of indicator coordinates in relation to a building information model includes a system administrator, a registration base and a headset unit. The system includes a headset including a display and a registration base for initial placement of the headset. The headset further includes a set of stereo cameras. The cameras capture an image of the construction site and overlay an image which includes the indicator coordinates. A position of the headset is determined relative to the registration base from motion sensors. A set of indicator coordinates is downloaded and projected to the display based on the position and orientation of the headset.