Electrode Plate Wrinkle Measurement for Uncoated Region Grading
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Solution Overview
Problem
Existing methods for measuring wrinkles in the uncoated portion of electrode plates are subjective and lack formal standards, leading to inconsistencies in evaluating wrinkle levels.
Innovation Solution
An apparatus and method using a quantification algorithm that includes an electrode plate transfer unit, wrinkle measurement unit, and a processor to measure and preprocess wrinkle data, correcting for tilt and removing coated regions to provide objective and quantitative wrinkle measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If subjective criteria are used to evaluate wrinkles, then the evaluation process is simple, but the measurement precision and consistency deteriorate due to differences between evaluators
Solution Approach 1:
The patent replaces the manual visual inspection system with an automated optical measurement system. A line laser projects parallel light lines onto the electrode plate surface, and a camera captures the reflected light patterns. The system automatically calculates wrinkle heights by analyzing the displacement of light lines, eliminating subjective human evaluation and achieving consistent, objective measurements.
Solution Approach 2:
The patent introduces light lines as an intermediary element to quantify wrinkles. By projecting parallel light lines onto the surface and measuring their displacement caused by wrinkles, the system converts subjective visual assessment into objective numerical data. The light lines serve as a reference medium that bridges the gap between visual inspection and precise measurement.
2Area of stationary object
If the entire surface including coated portions is measured, then the measurement coverage is complete, but the manufacturing precision deteriorates due to inclusion of irrelevant coated regions in wrinkle evaluation
Solution Approach 1:
The patent extracts and isolates the uncoated portion measurements from the entire surface. The system identifies the coated regions and excludes them from wrinkle evaluation, focusing only on the uncoated areas where wrinkles are relevant. This selective measurement approach improves evaluation accuracy by removing irrelevant data from coated regions.
Solution Approach 2:
The patent applies different measurement qualities to different regions of the electrode plate. The uncoated portions are measured with high precision for wrinkle evaluation, while coated portions are either excluded or measured with different criteria. This localized measurement strategy ensures that the evaluation focuses on the critical uncoated areas without being contaminated by coated region variations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and consistent evaluation of wrinkle levels in electrode plates, ensuring higher quality production by distinguishing between acceptable and unacceptable products.
Implementation Method 1
a wrinkle measurement unit configured to measure wrinkles in the dried electrode plate in a width direction during transfer of the dried electrode plate in the longitudinal direction
Data Source
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AI summary
An apparatus and method are provided for objectively measuring wrinkles in an uncoated portion of an electrode plate after drying of the electrode plate based on a quantification algorithm for wrinkle measurement. The apparatus includes an electrode plate transfer unit, a wrinkle measurement unit, a memory configured to store a preset preprocessing algorithm and a preset wrinkle level determination algorithm based on pre-coating measurement data of a dried electrode plate, and at least one processor configured to execute computer-readable instructions included in the memory. The at least one processor is set to acquire wrinkle measurement data of the dried electrode plate through the wrinkle measurement unit, to perform preprocessing to remove a coated portion from the acquired wrinkle measurement data based on the preset preprocessing algorithm, and to derive the grade of the preprocessed wrinkle measurement data based on the preset wrinkle level determination algorithm.