Vehicle Upper Body Error Visualization System
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Solution Overview
Problem
Existing systems fail to intuitively convey the magnitude of accumulated errors in the evaluation of assembled components, particularly in products like vehicles, where elastic deformation due to weight affects the accuracy of measurement results.
Innovation Solution
A product evaluation result display system that acquires 3D shape measurement data, displays a 3D reference shape of the product, and overlays a shift index image representing real-space position shifts, using color and length to visually represent position errors in a virtual space, allowing users to intuitively understand position discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If accumulated error analysis is performed on assembled members, then measurement precision is improved, but ease of operation deteriorates due to difficulty in intuitively comprehending error magnitude
Solution Approach 1:
The patent applies color mapping to represent position shift amounts, where different colors correspond to different magnitudes of error. This allows users to intuitively comprehend error magnitude through visual color cues rather than numerical data alone, resolving the contradiction between precise measurement and ease of understanding.
Solution Approach 2:
The patent transforms one-dimensional numerical error data into two-dimensional visual representations on a 3D model surface. By displaying position shift amounts as colored regions or heat maps on the product model, the system adds a visual dimension that makes error magnitude immediately comprehensible while preserving measurement precision.
2Measurement precision
If detailed position error data is displayed, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the 3D product model with position error data into a single integrated visualization. Instead of displaying separate tables and graphs, the error data is overlaid directly on the product model, combining structural information with measurement data to reduce overall system complexity while maintaining precision.
Solution Approach 2:
The patent creates a virtual copy of the physical product in 3D space and displays measurement data on this digital replica. This allows detailed error analysis to be performed and visualized on the copy without requiring complex physical measurement devices during the analysis phase, simplifying the overall system.
Data Source
AI summary
A product image representing an upper body of a vehicle having a reference shape and a shift index segment image linearly extending from each of a plurality of designated virtual space locations of the product image in each of a plurality of directions of virtual spaces are displayed. Each of the plurality of designated virtual space locations corresponds to each of a plurality of designated real space locations of the upper body of the vehicle having the reference shape. A length of the shift index segment image represents a quantity of a virtual space position shift amount. The “virtual space position shift amount” corresponds to a real space position shift amount in a direction of a real space at a designated real space location of the upper body based on reference data of the upper body.