Method and apparatus for measuring color difference, electronic device and storage medium
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for measuring color differences in fabrics after dyeing are inaccurate due to stretching and uneven tension, which affects the detection of color values at sampling points, leading to deviations from expected colors.
Innovation Solution
A method and apparatus that convey fabric segments through a measurement port, determining a time range for each segment and selecting effective sampling points based on preset sampling time points to accurately calculate color difference values by excluding sampling points on segmentation bands and accounting for tension fluctuations using sensors and image analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fabric is conveyed through measurement port for continuous sampling, then detection efficiency is improved, but sampling accuracy deteriorates due to stretching and tension variations
Solution Approach 1:
The system determines the time range for each fabric segment to pass through the measurement port before performing sampling. This preliminary timing determination allows the system to pre-identify which sampling points will be effective, enabling accurate color measurement even during continuous fabric conveyance and eliminating the need to stop the fabric for measurement.
Solution Approach 2:
The system uses tension sensors to detect tension variations in real-time during fabric conveyance and feeds this information back to adjust the sampling strategy. By monitoring tension fluctuations and using image analysis to detect segmentation bands, the system can identify and exclude ineffective sampling points, ensuring that only accurate color measurements are used for quality assessment.
2Device complexity
If sampling points are selected without considering time range, then detection process is simplified, but color difference measurement accuracy deteriorates
Solution Approach 1:
The system pre-determines the time range for each fabric segment passage and uses this information to select effective sampling points before actual color measurement. This preliminary selection process ensures that only sampling points corresponding to actual fabric segments (not segmentation bands) are used, maintaining measurement accuracy without requiring complex real-time adjustments during sampling.
Solution Approach 2:
The system replaces manual or simple mechanical sampling selection with an automated computer-based system that uses timing information and image analysis to intelligently select effective sampling points. This substitution of mechanical selection with automated computational selection improves accuracy while maintaining process efficiency.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The present disclosure provides a method and apparatus for measuring a color difference, an electronic device and a storage medium. The method includes: conveying respective fabric segments of the fabric to be detected sequentially to a measurement port of a detection portion, so as to collect color values at a plurality of sampling points (S3 01); determining a time range in which a target segment of the fabric to be detected passes through the measurement port of the detection portion; the target segment being any one fabric segment of the fabric to be detected (S302); selecting an effective sampling point of the target segment based on the time range and sampling time points of the plurality of sampling points (S303); and determining a corresponding color difference value of a target yarn spindle based on a color value and standard value of the effective sampling point (S304).