Coin Handling Apparatus with Feature-Based Equivalence Recognition
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Solution Overview
Problem
Coin handling apparatuses struggle to facilitate smooth transactions when coins of different nations, such as US and Canadian coins, circulate as having the same value due to size and color similarities, leading to interrupted transactions either by rejecting foreign coins or requiring complex conversion rate calculations.
Innovation Solution
A coin handling apparatus equipped with a recognition unit to detect coin features and a control unit that treats both US and Canadian coins as equivalent values, allowing for mixed storage and dispensing, with optional mode switching for differentiated handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the coin handling apparatus strictly differentiates between coins of different nations, then measurement precision is improved, but ease of operation deteriorates due to interrupted transactions
Solution Approach 1:
The patent applies parameter changes by modifying the recognition criteria from strict national differentiation to feature-based equivalence. The control unit changes the parameter of coin value recognition from 'nation-specific' to 'feature-equivalent', allowing coins with similar physical characteristics (size, color, weight) to be treated as having the same value regardless of origin. This resolves the contradiction by maintaining measurement precision through feature detection while improving ease of operation by enabling smooth transactions with foreign coins.
2Adaptability or versatility
If the coin handling apparatus accepts foreign coins with conversion rate calculations, then adaptability is improved, but device complexity deteriorates due to conversion rate lists
Solution Approach 1:
The patent extracts the conversion rate management function from the coin handling apparatus. Instead of embedding conversion rate lists and calculation mechanisms within the device, the system separates this function and handles it externally or through simplified equivalence rules. The apparatus accepts foreign coins based on physical feature matching rather than complex currency conversion, thereby maintaining adaptability while reducing device complexity.
3Reliability
If the coin handling apparatus rejects foreign coins, then reliability is improved by avoiding incorrect value processing, but ease of operation deteriorates due to transaction interruptions
Solution Approach 1:
The patent changes the recognition parameter from 'national origin' to 'physical features and equivalence'. The control unit compares physical characteristics (diameter, thickness, weight, color) and determines value equivalence based on these parameters rather than coin origin. This maintains reliability by ensuring accurate value processing through feature-based verification while improving ease of operation by allowing continuous transactions with equivalent foreign coins.
Data Source
AI summary
The coin handling apparatus configured to handle the first coin of the first nation and the second coin of the second nation includes a recognition unit 48 configured to recognize a coin and detects a feature amount of the recognized coin. The recognition unit 48 is configured to regard the recognized coin as the first coin when the feature amount of the detected coin conforms to feature amount information including a feature amount of the first coin and a feature amount of the second coin.