Division Card Identification in Paper Sheet Processing
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Solution Overview
Problem
Operators face challenges in accurately determining the usability of division cards in paper sheet processing devices due to dirtiness and deterioration, leading to potential errors in reading and unnecessary recounting processes.
Innovation Solution
The paper sheet processing device is equipped with an identifying portion to read multiple pieces of identification information, including unique information on the division card, and a control portion that determines the card's usability based on matching unique information from multiple readings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator manually judges the usability of the division card based on dirtiness and deterioration, then the operator can identify potentially unusable cards, but the judgment accuracy is low leading to reading errors and unnecessary recounting
Solution Approach 1:
The patent applies the copying principle by providing multiple identical barcodes (first barcode on front surface, second barcode on back surface) of the division card. The identifying portion reads both barcodes and compares their unique information to determine card usability. This redundancy allows the system to cross-validate identification data, ensuring accurate usability determination without requiring complex manual judgment while reducing reading errors and unnecessary recounting.
2Measurement precision
If multiple pieces of identification information are read and compared, then the accuracy of usability determination is improved, but the identification process becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the identification information into multiple separate barcodes positioned at different locations on the division card (front and back surfaces). Each barcode contains the same unique information, allowing the identifying portion to read and compare them independently. This segmentation simplifies the identification process compared to using a single complex identification system, as each barcode can be read separately and then compared for validation.
3Productivity
If the division card is used repeatedly for batch processing, then productivity is improved, but the barcode becomes dirty or faint leading to reading failures
Solution Approach 1:
The patent applies local quality by placing barcodes at multiple distinct locations on the division card (first barcode on the front surface, second barcode on the back surface). This ensures that even if one barcode becomes dirty or faint from repeated use, the other barcode remains readable. The identifying portion can successfully read at least one valid barcode to determine card usability, maintaining reliable identification throughout the card's service life and supporting continued productivity.
Data Source
AI summary
The present invention is provided with: an identifying portion that reads a plurality of pieces of identification information including the same unique information provided to a division card; and a control portion that determines that the division card is usable when the unique information obtained from each of the plurality of pieces of identification information match up, and that determines that the division card is unusable when the unique information does not match up. Since whether or not the division card is usable is determined on the basis of the matching up or non-matching up of the unique information of the plurality of pieces of identification information provided to the division card, it is possible to easily determine whether or not the division card is usable.