Bill Processing Apparatus Counterfeit Detection and Retention
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Solution Overview
Problem
Existing paper sheet processing systems in gaming machines struggle to effectively handle and examine counterfeit bills, as they are often ejected and difficult to investigate thoroughly.
Innovation Solution
A paper sheet processing system comprising a conveyer unit, reading unit, determination unit, control unit, and report apparatus that holds counterfeit bills within the system and reports a different result to encourage examination, along with a management apparatus for storing and analyzing image data to identify counterfeit bills and update reference data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the paper sheet processing apparatus ejects a paper sheet determined to be counterfeit, then the verification function is fulfilled, but the counterfeit bill cannot be examined in detail
Solution Approach 1:
The system separates the verification function from the examination function. The verification unit determines authenticity while the management apparatus retains and examines counterfeit bills separately, allowing both functions to operate independently without interference
Solution Approach 2:
The management apparatus acts as an intermediary between the verification unit and the external environment. It receives counterfeit bills from the verification unit, stores them securely, and provides examination capabilities without requiring the bills to be ejected to external suppliers
2Loss of information
If the paper sheet processing apparatus holds counterfeit bills internally, then detailed examination becomes possible, but the device complexity increases
Solution Approach 1:
The management apparatus performs multiple functions: it manages genuine bills, stores counterfeit bills, provides examination capabilities, and handles supplier interactions. This multi-functionality consolidates what would otherwise require separate systems into a single integrated apparatus
Solution Approach 2:
The system merges the verification apparatus with the management apparatus into an integrated system. The control unit coordinates both apparatuses, allowing them to function as a unified system rather than separate independent devices
3Loss of information
If the system reports the true verification result, then transparency is maintained, but the supplier may refuse to provide replacement bills
Solution Approach 1:
Instead of directly reporting the counterfeit determination to the supplier (which causes refusal), the system inverts the approach by reporting a different result (paper jam) that does not trigger refusal, while internally maintaining and examining the counterfeit bill through the management apparatus
Data Source
AI summary
Provided is a paper sheet processing system capable of collecting a wrong paper sheet put in a bill processing apparatus to examine the collected paper sheet without making the supplier feel doubt. A paper sheet processing apparatus verifies a paper sheet using image data acquired by a bill reader when the bill is being conveyed. If the paper sheet is determined to be counterfeit in the verification, the paper sheet processing apparatus holds the paper sheet within the paper sheet processing apparatus and sends a signal from a controller of the paper sheet processing apparatus to instruct a report device to report a result different from the result of the verification. The report device reports a result irrelevant to use of a wrong paper sheet.