3D Measurement Resolution Feedback System
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Solution Overview
Problem
Current methods for dimensional acquisition in reverse engineering and inspection tasks often result in incomplete or poorly resolved point clouds due to lack of guidance during the acquisition process, leading to inefficiencies and the need for skilled operators to manage both acquisition and inspection processes, which can be time-consuming and prone to errors.
Innovation Solution
A method and computer program that provides real-time feedback on the resolution of acquired regions, allowing the measurement device to be redirected automatically or manually to areas of insufficient resolution, ensuring sufficient data coverage based on predetermined criteria, thereby improving the efficiency and accuracy of dimensional acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual dimensional acquisition is performed without real-time feedback, then the operator has flexibility in movement, but the acquisition resolution becomes insufficient and incomplete
Solution Approach 1:
The system displays a graphical representation of the object with visual indicators showing which regions have been acquired and their resolution quality in real-time. This feedback loop allows the operator to see immediately whether the current acquisition meets the required resolution criteria, enabling them to adjust their movements and perform additional passes in low-resolution areas without needing to understand complex measurement theory.
2Reliability
If skilled operators manage both acquisition and inspection processes, then comprehensive control is achieved, but the process becomes time-consuming and prone to errors
Solution Approach 1:
The system performs self-inspection by automatically analyzing the acquired point cloud data against the target object model and identifying regions with insufficient resolution. This eliminates the need for a separate inspection phase performed by skilled operators, as the system continuously monitors its own acquisition quality and guides the operator to perform targeted re-acquisition only where needed.
Solution Approach 2:
The system pre-identifies and highlights regions that require additional acquisition passes before the operator completes the scanning process. By showing low-resolution areas in advance, the system allows the operator to address these issues during the acquisition phase itself rather than discovering them later during inspection, thereby eliminating re-work and reducing total process time.
3Ease of operation
If unskilled operators perform dimensional acquisition, then operational simplicity is improved, but the acquisition resolution and completeness deteriorate
Solution Approach 1:
The graphical user interface provides continuous visual feedback showing the operator exactly which regions have been scanned and which require additional passes. This real-time guidance transforms an otherwise complex task requiring skilled judgment into a simple follow-the-guidance process that unskilled operators can perform effectively by simply responding to the visual cues provided by the system.
Data Source
AI summary
The present invention relates to a method for improving the efficiency of dimensional acquisition of an object by a dimensional measurement device directed over the object, comprising the steps: a) directing the measurement device over the object to acquire its dimensions, b) providing an indication of the resolution of the acquired regions, c) re-directing the measurement device over at least part of the acquired regions indicating insufficient resolution according to predetermined criteria, d) updating the indication of the resolution of the acquired regions, and e) repeating steps c) and d) until sufficient resolution is indicated according to the predetermined criteria, thereby efficiently acquiring the dimensions of the object at sufficient resolution. It also relates to a computer program therefor.