Workpiece Position Matching With Verification Region Rejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems inaccurately match workpiece models with detection data, leading to incorrect position data acquisition and subsequent inaccurate work performance on the workpiece.
Innovation Solution
A device and method that includes a position data acquiring unit to match a workpiece model with detection data, defining a verification area where an object cannot enter, and a position data canceling unit to invalidate position data if object shape data is present in this area, ensuring accurate position data acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If workpiece model matching with detection data is performed to acquire position data, then position data acquisition capability is improved, but mismatch errors occur leading to inaccurate position data
Solution Approach 1:
The verification area is defined in advance in the workpiece model before matching occurs. This preliminary setup establishes a reference framework that will be used to validate the matching results, preventing erroneous matches from producing inaccurate position data.
Solution Approach 2:
The system performs feedback validation by checking whether shape data of other objects appears in the verification area after matching. If shape data is detected in the verification area, the system determines that a mismatch has occurred and rejects the position data, thereby improving reliability through self-validation.
2Measurement precision
If verification area is defined in workpiece model to prevent mismatch, then position data accuracy is improved, but device complexity increases
Solution Approach 1:
The workpiece model is segmented into two distinct parts: the workpiece shape data and the verification area. This segmentation allows the verification area to function as an independent validation component that does not interfere with the primary shape matching process, thereby improving accuracy without proportionally increasing overall complexity.
Solution Approach 2:
The verification area acts as an intermediary element between the workpiece model and the matching algorithm. It provides a reference framework that mediates the validation process, enabling the system to detect mismatches without requiring complex modifications to the core matching methodology.
3Manufacturing precision
If shape data validation is performed to detect mismatch, then work accuracy is improved, but processing time increases
Solution Approach 1:
The system performs partial validation by checking only the verification area rather than re-evaluating the entire workpiece model. This selective approach provides sufficient validation to detect mismatches while minimizing the additional processing time required, as the verification area is typically a small portion of the complete model.
Data Source
AI summary
This device that acquires position data pertaining to a workpiece on the basis of detection data from a shape detection sensor includes: a position data acquisition unit that matches a workpiece model to shape data pertaining to the workpiece included in the detection data, the workpiece model modeling the workpiece and being such that a confirmation region corresponding to a region that cannot be entered is established therein, to thereby acquire the position data; and a position data cancellation unit that invalidates the position data acquired by the position data acquisition unit if shape data pertaining to an object included in the detection data is present in the confirmation region established in the workpiece model that is matched to the shape data pertaining to the workpiece by the position data acquisition unit.