Camera Verification Structure for Long-Term Visual Detection Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Visual detection equipment experiences reduced detection precision due to imaging quality degradation over time, leading to misjudgments and reduced accuracy.
Innovation Solution
A camera verification piece with a verification structure that matches the to-be-detected structure is used to simulate the detection process, allowing for real-time assessment of camera imaging quality by comparing obtained structural parameters with predetermined values, enabling timely adjustments or replacements to maintain precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If visual detection equipment is used for long-time detection, then productivity is improved, but measurement precision deteriorates due to imaging quality degradation
Solution Approach 1:
The patent implements preliminary calibration actions by placing a calibration board in the detection field before actual product detection. The calibration board contains known geometric features (lines, circles, arcs) that allow the system to pre-assess and correct camera imaging parameters, ensuring measurement precision is maintained throughout long-time detection operations
Solution Approach 2:
The system employs feedback mechanisms by continuously comparing detected geometric features against predetermined reference values. When deviations are detected in line widths, circle diameters, or arc parameters, the system generates feedback signals to adjust imaging parameters, thereby maintaining detection precision over extended operational periods
2Measurement precision
If calibration methods are implemented to maintain precision, then measurement precision is improved, but device complexity increases due to additional calibration components
Solution Approach 1:
The patent uses a calibration board that creates simplified geometric copies (lines, circles, arcs) of the features to be detected. These copied geometric forms serve as reference standards that are easier to manufacture and measure, allowing precision calibration without requiring complex calibration apparatus
Solution Approach 2:
The calibration board is designed with multiple geometric features (straight lines, circles, arcs) that can calibrate various aspects of the imaging system simultaneously. This multi-functional calibration tool replaces what would otherwise require multiple separate calibration devices, reducing overall system complexity while maintaining comprehensive precision correction
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
This application discloses visual detection equipment and a verification method thereof, and a camera verification piece. The camera verification piece includes a body, the body is provided with a verification structure for detection by the visual detection equipment, and the verification structure is constructed to adapt to a to-be-detected structure on a to-be-detected part. During verification, imaging analysis is performed on the verification structure by a camera to obtain structural parameters and the obtained structural parameters are compared with predetermined structural parameters, so that the state of the camera is verified. If the camera is in an abnormal working state, at this time, workers can timely need to adjust or replace the camera, the imaging quality of the camera is improved, and detection errors of the visual detection equipment are corrected timely, thereby solving the problem that detection accuracy and detection precision of the visual detection equipment are reduced, and thus the visual detection equipment still has good detection accuracy and detection precision after long-time detection or adjustment.