Card Reading Device UV Code Fraud Detection
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Solution Overview
Problem
Existing card game fraud detection devices are cumbersome and expensive, making it difficult to detect fraud on the spot during games like Baccarat, where card manipulation can occur quickly and subtly.
Innovation Solution
A card game fraud detection device with a simple and inexpensive configuration, using a card reading system with UV-luminous ink codes and sensors to compare entering and leaving cards, allowing for real-time fraud detection without the need for complex card transfer mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional card inspection devices are used to detect fraud, then fraud detection capability is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts only the essential fraud detection function from complex conventional inspection devices. By using a simple code reading mechanism that checks only whether a card belongs to a predetermined group, the system achieves fraud detection capability without requiring complex card transfer mechanisms or multiple sensors, thus resolving the contradiction between detection capability and device complexity
Solution Approach 2:
The patent uses a code representation (photograph, image, or character string) of the card's mark instead of directly analyzing the physical card features. This copying approach simplifies the detection mechanism while maintaining fraud detection capability, as the code can be read and verified without complex optical or mechanical systems
2Reliability
If card transfer mechanisms are used to inspect entire card groups, then comprehensive inspection is improved, but device size and complexity increase
Solution Approach 1:
The patent removes the card transfer mechanism entirely from the inspection system. Instead of mechanically moving and inspecting entire card groups, the system inspects cards in place by reading their codes, thereby achieving inspection completeness without the complexity and size of transfer mechanisms
Solution Approach 2:
The patent replaces mechanical card transfer systems with an optical/electronic code reading system. By substituting the mechanical inspection process with a non-contact code reading method, the system maintains inspection capability while eliminating complex mechanical components
3Reliability
If players are forbidden to turn over cards to prevent fraud, then fraud detection is improved, but player experience and game fun deteriorate
Solution Approach 1:
The patent introduces an intermediary code (printed or attached on the card) that serves as a mediator between the card and the detection system. This code can be read by the inspection device without requiring the card to be turned over, thus preventing fraud while maintaining the card-turning aspect of the game that contributes to player experience
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
Enables reliable and immediate detection of card fraud during games, maintaining the integrity of the game without disrupting the players' experience, as it does not require recognizing card marks and can be integrated into the game table.
Implementation Method 1
the card have the cord which is printed in UV-luminous ink on the card
Data Source
AI summary
A card reading device comprises a rail (18) for guiding a card; card sensors (46, 48, 50) for detecting a passing card which is slid by hand and guided by the rail (18), which are placed in a card sliding direction with a certain gap; and reading sensors (52, 54) for reading code attached to the card, which are placed between the two card sensors in the card sliding direction. The card have the cord which is printed in UV-luminous ink on the card, and the code comprises at least two code rows which are placed across the card sliding direction with a certain gap. The two reading sensors (52, 54) are placed in positions which correspond to the gap of the two code rows, and the card sensors (46, 48, 50) output signal for detecting a position of the passing card.