Sheet Processing Apparatus Serial Number Correction
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Solution Overview
Problem
Existing sheet processing apparatuses face challenges in accurately correcting serial numbers when recognition failures occur due to overlapping banknotes or changes in feeding order during dispensing, leading to incorrect serial number specification.
Innovation Solution
A sheet processing apparatus that includes a storage unit, a recognition unit, and a control section to retrieve and correct serial numbers from a serial number list based on a predetermined degree of coincidence, ensuring accurate identification and correction of serial numbers even when recognition is incomplete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the existing sheet processing apparatus specifies depositing order of banknotes from feeding order and corrects serial numbers based on reading order, then the dispensing processing can be performed, but incorrect serial numbers may be specified when banknotes are overlapped or feeding order changes
Solution Approach 1:
The system performs preliminary reading of serial numbers during the depositing phase and stores them in association with banknote positions. When dispensing, it retrieves the previously read serial number from storage rather than attempting to read again, ensuring accuracy even when physical feeding order differs from storage order.
Solution Approach 2:
The system creates a digital copy of the serial number data during depositing and stores it in memory. This copied information is then referenced during dispensing operations, allowing the system to maintain accurate serial number tracking without relying on real-time physical reading during dispensing.
2Reliability
If the recognition unit attempts to read serial numbers during dispensing, then real-time verification is possible, but reading failures occur when banknotes are damaged, dirty, or overlapped
Solution Approach 1:
The system performs the serial number reading action in advance during the depositing phase, storing the results for later use. This eliminates the need to attempt reading during dispensing when banknotes may be damaged, dirty, or overlapped, ensuring continuous operational reliability.
Solution Approach 2:
The system prepares backup serial number data during depositing that can be used to compensate for potential reading failures during dispensing. This beforehand preparation cushions against the harmful effects of damaged or dirty banknotes encountered during dispensing operations.
3Device complexity
If the system stores serial numbers in reading order, then data organization is simplified, but the serial number may not correspond to the actual banknote when feeding order changes
Solution Approach 1:
The system establishes the correct serial number-to-banknote correspondence during the depositing phase when the physical state is stable and readable. This preliminary association is stored and maintained, allowing the system to retrieve the correct serial number regardless of subsequent changes in feeding order during dispensing.
Solution Approach 2:
The system creates a digital mapping copy of serial numbers to banknote identifiers during depositing. This copied association data is stored and referenced during dispensing, maintaining accurate correspondence even when physical feeding order changes, without requiring complex real-time tracking.
Data Source
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AI summary
A sheet processing apparatus 1 includes: storage units 21 to 28 that each store therein a sheet with a serial number; a recognition unit 16 that performs first reading processing to read the serial number from the sheet transported from each of the storage units 21 to 28; and a control section 18 that retrieves the serial number having a predetermined relationship relating to a degree of coincidence with the serial number read in the first reading processing, from a serial number list of the sheets stored in the storage units 21 to 28.