AR Wire Harness Installation With Landmark-Aligned 3D Guidance
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Solution Overview
Problem
Existing wire harness installation methods rely on generalized reference drawings that do not accurately represent 3D space nuances and require frequent reference to screens, while existing AR systems only place reference documents within the installation scene without adequate spatial alignment.
Innovation Solution
An AR system that identifies landmarks in the installation environment, continuously orients 3D wire harness models in 3D space, and provides higher granularity installation instructions through predefined steps and sub-steps, using a processor to render 3D models on an AR device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If generalized reference drawings are used for wire harness installation, then the installation process can be standardized, but the accuracy of representing 3D space nuances is insufficient
Solution Approach 1:
The patent transitions from 2D reference drawings to 3D virtual models that accurately represent spatial relationships. The system uses 3D scanning to capture the actual installation environment and generates 3D wire harness models with precise spatial coordinates, routing paths, and component positions, thereby resolving the limitation of 2D drawings in representing 3D space nuances
Solution Approach 2:
The patent creates virtual copies of the actual installation environment through 3D scanning and generates digital twins of wire harness components. These virtual models are then overlaid onto the physical environment using augmented reality, providing accurate spatial guidance while maintaining standardization through predefined installation sequences and parameters
2Loss of information
If frequent reference to screens or drawings is required, then installation instructions can be comprehensive, but installation efficiency is reduced
Solution Approach 1:
The patent merges the installation instructions with the physical installation environment by overlaying virtual wire harness models directly onto the actual workspace through augmented reality. This integration allows installers to see both the physical components and the instructional guidance simultaneously, eliminating the need to repeatedly reference separate screens or drawings while maintaining complete instructional information
Solution Approach 2:
The augmented reality system acts as an intermediary between the installer and the installation instructions, presenting comprehensive guidance through spatially-aligned virtual overlays that appear naturally within the installer's field of view. This intermediary delivers complete instructional information without requiring the installer to shift attention between multiple sources, thereby maintaining both information completeness and installation efficiency
3Ease of operation
If existing AR systems place reference documents within the installation scene, then visual guidance is provided, but spatial alignment accuracy is insufficient
Solution Approach 1:
The patent uses 3D scanning to capture precise spatial parameters of the installation environment, including coordinates, distances, angles, and orientations. These measured parameters are then used to accurately align the virtual wire harness models with the physical environment, ensuring that the augmented reality overlay matches the actual spatial relationships rather than using generic or approximate positioning
Data Source
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AI summary
An AR system to assist with installation of wire harnesses identifies landmarks in the installation environment and continuously orients 3D models of the wire harness components with reference to the landmarks in 3D space. The 3D models are rendered in an AR device to correspond to the placement in 3D space with respect to the landmarks. The installation process is broken down into steps and sub-steps. An installer may install the wire harness according to predefined steps and be presented with higher granularity instructions upon request. The higher granularity sub-steps may include additional 3D models.