Banknote Acceptor Visual Verification Display
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional banknote acceptors often lead to user disputes regarding the authenticity and denomination of banknotes, requiring time-consuming manual verification in gaming and vending machines.
Innovation Solution
A banknote acceptor system that includes a sensing station for image data capture, a processor for comparison with stored reference data, and a display device to visually confirm the banknote's authenticity and denomination, allowing users to verify the banknote presented.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional banknote acceptors authenticate banknotes by comparing physical properties with stored reference data, then authentication speed and automation are improved, but user trust and dispute resolution capability deteriorate
Solution Approach 1:
The patent creates a visual copy of the banknote image and displays it to the user through a display device. This allows the user to verify the authenticity of the banknote being authenticated by the machine, building trust while maintaining automation. The displayed image serves as a transparent record of what the machine is analyzing.
Solution Approach 2:
The system provides visual feedback to the user by displaying the captured banknote image and authentication results. This feedback loop allows users to confirm that the correct banknote is being processed and to verify the authentication outcome, reducing disputes while maintaining automated processing.
2Reliability
If banknote disputes require manual verification by machine operators, then user dispute resolution capability is improved, but processing time and operational efficiency deteriorate
Solution Approach 1:
The system enables users to perform self-verification of banknote authenticity by displaying the captured image and authentication results directly to them. Users can independently confirm whether their banknote was correctly authenticated without requiring operator intervention, thus maintaining dispute resolution capability while preserving processing efficiency.
Solution Approach 2:
The system performs preliminary visual verification by capturing and displaying the banknote image before final authentication decisions are made. This preliminary action allows users to confirm the banknote identity early in the process, preventing disputes from requiring time-consuming manual verification later.
3Reliability
If banknote images are displayed for user verification, then user trust and dispute reduction are improved, but device complexity and manufacturing cost deteriorate
Solution Approach 1:
The system uses the existing image capture hardware (detectors, cameras) already present in automated banknote acceptors for dual purposes: both authentication analysis and user verification display. This multi-functionality approach adds the trust-building display capability without requiring separate imaging systems, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent introduces a display device as an intermediary between the authentication system and the user. This intermediary translates the machine's internal authentication process into visible, verifiable information for users, building trust without requiring complex changes to the core authentication mechanism.
4Speed
If optical scanning is used to capture banknote images, then authentication speed is improved, but measurement precision and image quality for verification deteriorate
Solution Approach 1:
The system performs preliminary high-quality image capture at full resolution during the authentication process. This high-resolution image is then used for both rapid authentication comparison and detailed user verification, ensuring that speed is not compromised by image quality limitations.
Solution Approach 2:
The patent separates the image processing into different stages: rapid comparison operations use processed/summarized features for speed, while the full-resolution original image is preserved for user verification. This segmentation allows speed-optimized authentication while maintaining high-quality images available when needed for user trust.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces disputes by enabling users to visually confirm the banknote's authenticity and denomination, streamlining the authentication process and minimizing the need for manual verification.
Implementation Method 1
a detector to provide image signals corresponding to the banknote
Data Source
AI summary
A banknote acceptor 1 for authenticating a banknote 2, has a sensing station S with detector 18 that produces image signals corresponding to a face the banknote. A processor 24 pre-processes the image signals and compares them with stored reference data corresponding to an acceptable banknote from memory 25 to determining the authenticity of the banknote and its denomination. A display device 29 displays an image 31 corresponding to the banknote under test based on the image signals from the detector 18, to allow the user to perform a visual check that the banknote detected at the sensing station corresponds to the banknote under test presented by the user. Also, the detected denomination of the banknote is displayed on device 32. The user can accept or reject the banknote using buttons 33 and 34, and retrieve images of previously accepted banknotes with button 35.