Casino Cage RFID Tracking for Internal Chip Movement Control

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Solution Overview

Problem

Conventional gaming chip tracing systems fail to monitor the movement of chips within the casino, including movements inside the cage and between the cage and various locations, leading to potential inefficiencies and security vulnerabilities.

Innovation Solution

A cage system equipped with RFID-tagged gaming chips and multiple reading devices to track chip movements, along with a management system to record and manage these movements, detect fraudulent activities, and ensure accurate transfers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional gaming chip tracing systems are used, then chip tracking is implemented, but movement of chips within the cage and between cage and casino locations is not monitored

Engineering Contradiction:
Improvechip tracking reliabilityVSAvoidmovement history information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system divides the monitoring coverage into multiple segments: a first reading device monitors chip movements within the cage between different locations, while a second reading device monitors chip movements between the cage and the casino hall. This segmentation ensures comprehensive coverage of all chip movement scenarios without requiring a single complex system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cage system acts as an intermediary between the casino hall and game tables, with reading devices positioned at cage locations to detect and record chip movements. The management device serves as another intermediary that processes movement history data, determines appropriateness of movements, and generates alerts for suspicious activities, thereby filling the information gap in conventional systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple reading devices are deployed to monitor all chip movements, then comprehensive monitoring is achieved, but system complexity increases

Engineering Contradiction:
Improvemonitoring coverageVSAvoidreading device configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The monitoring system is segmented into two distinct reading devices with specific functional divisions: the first reading device is dedicated to monitoring movements within the cage, while the second reading device monitors movements between the cage and casino hall. This segmentation simplifies the configuration and maintenance of each individual device while achieving comprehensive monitoring coverage through their coordinated operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Both reading devices use the same RFID technology to read chip IDs, and the management device performs multiple functions including recording movement history, determining movement appropriateness, generating alerts for suspicious activities, and verifying chip destinations. This multi-functionality reduces the need for multiple specialized devices and simplifies the overall system architecture.

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

3Reliability

If movement history is recorded for all chips, then fraudulent movements can be detected, but data storage requirements increase

Engineering Contradiction:
Improvefraud detection capabilityVSAvoidmovement history data
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The system extracts only the essential information needed for fraud detection from the movement history data, such as chip ID, source location, destination location, and timestamp. The management device processes this extracted data to determine movement appropriateness and generate alerts, rather than storing and analyzing all possible movement details, thereby reducing data storage requirements while maintaining fraud detection effectiveness.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The management device performs preliminary processing of movement history data by immediately determining whether each movement is appropriate and generating alerts for suspicious activities at the time of movement. This preliminary action filters and prioritizes data, reducing the need for extensive historical data storage for later analysis while maintaining comprehensive fraud detection capability.

Inventive Principle:
Principle #10Preliminary action

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 comprehensive management of gaming chips, detects fraudulent movements, ensures timely and correct transfers, and provides real-time debt tracking, enhancing security and operational efficiency in casinos.

Implementation Method 1

the gaming chips have an RFID tag that stores an ID

Methodology Applied
Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Implementation Method 2

a first reading device configured to read the chip ID from the RFID tag of the gaming chip moving between the plurality of locations

Methodology Applied
Scientific EffectRFID reading: Electromagnetic Induction

Implementation Method 3

a second reading device configured to read the chip ID of the gaming chip leaving the cage into the casino hall

Methodology Applied
Scientific EffectRFID reading: Electromagnetic Induction

Data Source

PatentEP4706794A2Cage system, and chip management system
Publication Date: 2026.03.11 ANGEL GRP CO LTD
  • EP4706794A2 patent drawingFigure 1
  • EP4706794A2 patent drawingFigure 2
  • EP4706794A2 patent drawingFigure 3

AI summary

A cage (10) is divided into a plurality of locations, including a cashier room (14). The gaming chip (70) has an RFID tag (71) storing a chip ID. The cage system (501) that manages the movement of the gaming chips within the cage (10) of the casino hall (1) comprises: a chip reader (123) that reads a chip ID from an RFID tag (71) of a gaming chip (70) moving between multiple locations within the cage (10); a chip reader (133, 143) that reads the chip ID from the RFID tag (71) of the gaming chips (70) that exit the cage (10) to the casino hall (1); and a chip management database (101) that records the chip IDs read by the chip reader (123, 133, 143) as the movement history of the gaming chips (70).