Casino Chip Tray Monitoring for Blind-Spot Fraud Detection

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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 are unable to detect sophisticated fraud methods like card squeegee and 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 amounts, and determine win/lose results, enabling accurate fraud detection and prevention.

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 chip overlap

Engineering Contradiction:

Improvefraud detection capabilityVSAvoidchip amount determination accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The system divides the monitoring task into multiple segments by using multiple cameras positioned at different angles, each capturing specific regions of the gaming table. This segmentation eliminates blind spots and allows comprehensive coverage of chip movements without requiring a single all-seeing camera position.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces RFID tags as intermediary objects attached to chips, which serve as mediators between the physical chips and the detection system. These tags enable automatic identification and tracking of individual chips through wireless communication, providing precise data about chip locations and movements that supplement visual camera data.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If multiple cameras are deployed to eliminate blind spots, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvechip position recognition accuracyVSAvoidsystem configuration complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The control device is designed as a universal system that performs multiple functions: it processes images from multiple cameras, reads RFID tag data, calculates win/lose results, tracks chip movements, and detects fraud. This multi-functional design consolidates what would otherwise require separate specialized systems, reducing overall complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the image processing functions of multiple cameras into a single integrated control device that handles all camera inputs simultaneously. By combining multiple camera feeds and processing them together in one system rather than separately, the complexity of coordinating multiple independent systems is reduced.

Inventive Principle:

Principle #5Merging (Combining)

3Measurement precision

If RFID tags are attached to each chip, then chip recognition accuracy is improved, but manufacturing cost increases

Engineering Contradiction:

Improvechip identification accuracyVSAvoidchip production cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The system uses inexpensive RFID tags that can be attached to chips. These tags are relatively cheap components that enable precise tracking and identification. The approach accepts the added cost as a trade-off for the significant fraud prevention benefits, treating the tags as consumable components rather than permanent chip modifications.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Reliability

If image analysis is used to track chip movement, then fraud detection capability is improved, but processing time increases

Engineering Contradiction:

Improvefraud detection accuracyVSAvoidgame settlement time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The control device continuously pre-processes and analyzes images from cameras in real-time during gameplay, rather than waiting until the end of a game to examine images. This preliminary action allows the system to have chip position data ready when needed for win/lose determination and fraud detection, reducing delays in game settlement.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual visual inspection of chip movements with automated image processing and RFID reading systems. This substitution of mechanical/manual processes with electronic automation significantly reduces the time required to analyze chip movements and determine game results, while maintaining or improving detection accuracy.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP4428800B1Fraud detection system at game parlor

Publication Date: 2026.04.22 ANGEL PLAYING CARDS CO LTD

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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.