Composite Strip Image Splicing for Precise Electrode Division Marking
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Solution Overview
Problem
Existing methods for quality assessment of lithium batteries, particularly in the production process, struggle to accurately and efficiently mark the sheet division positions of continuous composite strips, which affects the division accuracy of electrode sheets.
Innovation Solution
A marking method and apparatus that utilize image identification technology to collect and splice sequences of images of the continuous composite strip, allowing for the accurate identification and marking of electrode sheet division positions by recognizing electrode sheet edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional division methods are used for electrode sheets, then the winding process can be performed, but the sheet division marking for continuous composite strip cannot be achieved
Solution Approach 1:
The patent replaces traditional mechanical division methods with an optical imaging and image processing system. Image collection devices capture images of the continuous composite strip, and image processing algorithms automatically identify electrode sheet edges and mark division positions, eliminating the need for mechanical measurement and marking tools while achieving high precision.
Solution Approach 2:
The patent uses image collection to create optical copies of the continuous composite strip. By capturing images and processing them to identify electrode sheet edges, the system creates a digital representation that can be analyzed and marked without physically touching or disturbing the actual strip, enabling non-contact precision marking.
2Measurement precision
If image collection and splicing is performed to identify electrode sheet edges, then marking precision is improved, but processing time increases
Solution Approach 1:
The patent performs image collection and splicing operations in advance during the production process. By continuously capturing images and pre-processing them to identify electrode sheet edges before the actual marking operation, the system prepares the data beforehand, enabling rapid and accurate marking without time pressure.
Solution Approach 2:
The patent implements continuous image collection along the continuous composite strip during production. Instead of stopping to take individual measurements, the system continuously captures images and processes them in real-time, maintaining uninterrupted production flow while achieving precise edge identification and marking.
Data Source
AI summary
The disclosure discloses a marking method and apparatus of a continuous composite strip. The method incudes: collecting a first sequence of images of the continuous composite strip; splicing multiple images of the first sequence of images according to a collection sequence, to obtain a to-be-detected image with at least one electrode sheet structure; and marking, in case where two electrode sheet edges are identified in the to-be-detected image, a position of the collection-sequentially second electrode sheet edge in the continuous composite strip as an electrode sheet division position of the continuous composite strip. The method determines the electrode sheet division position by identifying the electrode sheet edges in the continuous composite strip, obtains the specific position information of the electrode sheet, and accurately performs the sheet division marking of the continuous composite strip.