Banknote Handling Apparatus Reject Sorting and Speed Control
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Solution Overview
Problem
Conventional banknote handling apparatuses face inefficiencies in rejected banknote re-depositing tasks due to mixing of proper and improper banknotes, require separate equipment for recognition and counting, and struggle with high-speed processing while increasing environmental load.
Innovation Solution
A banknote handling apparatus with a recognition unit, deposit acceptability judging unit, reject reason identifying unit, and dispensing processing unit that sorts and dispenses rejected banknotes based on identified reasons, allowing for efficient re-depositing and reducing environmental impact by switching between high and low transport speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rejected banknotes are discharged to a single reject unit without sorting, then the device structure is simple, but the operator cannot efficiently perform re-depositing tasks because proper and improper banknotes are mixed
Solution Approach 1:
The reject unit is divided into multiple compartments (first reject unit for transport errors, second reject unit for storage errors, third reject unit for other errors). This segmentation allows proper banknotes that can be re-deposited to be separated from improper banknotes, enabling efficient re-depositing operations without requiring complex external sorting systems.
Solution Approach 2:
The transport unit serves as an intermediary between the recognition unit and the reject unit. It not only transports banknotes but also performs preliminary sorting by detecting transport errors and directing banknotes to appropriate reject units, thereby reducing the complexity of the overall sorting system while improving re-depositing efficiency.
2Productivity
If high-speed processing is implemented, then productivity increases, but energy consumption and noise increase
Solution Approach 1:
The banknote handling apparatus operates in periodic cycles, transporting banknotes at high speed only when necessary for recognition and sorting, then pausing before dispensing. This periodic operation pattern maintains high productivity while reducing overall energy consumption compared to continuous high-speed operation.
Solution Approach 2:
The transport speed is dynamically adjusted based on operational requirements. High speed is used during banknote transport and recognition phases to maximize productivity, while lower speeds are used during dispensing and sorting phases to reduce energy consumption and noise, achieving an optimal balance between productivity and energy use.
3Reliability
If multiple separate units are used for recognition, sorting, and dispensing, then each function can be optimized, but the device complexity increases
Solution Approach 1:
The transport unit combines multiple functions: it transports banknotes from the recognition unit to the reject unit, performs preliminary sorting by detecting transport errors, and prepares banknotes for dispensing. This merging of transport and sorting functions reduces device complexity while maintaining reliable handling through integrated error detection and correction capabilities.
Solution Approach 2:
The recognition unit is designed with universal capabilities to identify various types of banknotes and errors (transport errors, storage errors, counterfeit detection). This multi-functional recognition system eliminates the need for separate specialized units for each type of detection, reducing overall device complexity while maintaining high reliability through comprehensive banknote verification.
Data Source
AI summary
A banknote handling apparatus that performs a depositing handling or a depositing/dispensing handling by transporting banknotes along a transport path includes a recognizing unit that recognizes an inserted banknotes; a deposit acceptability judging unit that determines, based on a recognition result obtained by the recognizing unit, whether the banknotes is acceptable for deposit; a reject reason identifying unit that identifies a reject reason of rejected banknotes that is determined to be unacceptable for deposit by the deposit acceptability judging unit; and a dispensing handling unit that sorts and dispenses the rejected banknotes based on the reject cause identified by the reject cause identifying unit.