Casino Chip Tray Fraud Detection Using RFID and Game Results

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Solution Overview

Problem

Existing casino fraud detection systems face challenges in accurately determining chip amounts due to blind spots and overlapping chips, and cannot detect sophisticated fraud methods like card squeegee or dealer-player conspiracies.

Innovation Solution

A fraud detection system using a game recording apparatus, image analyzing apparatus, and control device with artificial intelligence and deep learning capabilities to analyze chip positions, types, and numbers, and detect fraud by comparing actual and expected chip amounts, and determining win/lose results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If surveillance cameras are used to monitor chip movement, then fraud detection capability is improved, but measurement precision deteriorates due to blind spots and overlapping chips

Engineering Contradiction:
Improvefraud detection capabilityVSAvoidchip amount determination accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent introduces RFID tags as intermediary objects attached to chips, which serve as mediators between the surveillance system and the chips. These tags enable precise identification and tracking of individual chips through wireless communication, bypassing the limitations of visual detection by cameras. The RFID tags provide accurate chip identification even when chips are overlapping or in blind spots, thus resolving the contradiction between fraud detection capability and measurement precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If image analysis is used to recognize chip positions and amounts, then automated monitoring is improved, but detection accuracy deteriorates in areas with blind spots or overlapping chips

Engineering Contradiction:
Improveautomated monitoring capabilityVSAvoidchip recognition accuracy
Core Design Contradiction:
Extent of automationVSMeasurement precision

Solution Approach 1:

The patent replaces the mechanical/optical system of camera-based image analysis with an electromagnetic field-based RFID detection system. Instead of relying on visual detection that fails with overlapping chips or blind spots, the system uses RFID readers to wirelessly detect and identify chips through their embedded tags. This substitution maintains automated monitoring while dramatically improving detection accuracy in previously problematic areas.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If simple surveillance methods are used, then system complexity is reduced, but the ability to detect sophisticated fraud methods deteriorates

Engineering Contradiction:
Improvesystem simplicityVSAvoidsophisticated fraud detection capability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent creates a universal fraud detection system that combines RFID technology with game rules to detect multiple types of fraud through a single integrated platform. The system can identify chip movement, verify win/lose results, detect card squeegee, prevent dealer-player conspiracies, and track chip collection/redemption all through one system. This multi-functional approach enhances fraud detection capability without proportionally increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4451199B1Fraud detection system at game parlor
Publication Date: 2025.11.26 ANGEL PLAYING CARDS CO LTD
  • EP4451199B1 patent drawingFigure 1
  • EP4451199B1 patent drawingFigure 2A
  • EP4451199B1 patent drawingFigure 2B

AI summary

A fraud detection system which detects fraud in a game of performing collection and redemption of chips in accordance with a win or lose result includes a camera which captures an image of chips contained in a chip tray of a dealer, an image analyzing apparatus which analyses the image captured by the camera to detect an amount of the chips contained in the chip tray, a card distribution device which determines a win or lose result of a game, and a control device which compares the win or lose result of the game and the amount of the chips contained in the chip tray before and after collection and redemption of the chips to detect fraud.