Gaming Table Chip Identification Using RFID-Camera Correlation
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Solution Overview
Problem
Existing gaming table systems face challenges in accurately identifying the position, type, and number of gaming chips due to limitations in camera and RFID systems, such as difficulty in reading detailed information from small chip markings and overlapping antenna ranges, as well as detecting illicit chips without functional RFID tags.
Innovation Solution
A gaming table system that combines RFID tags with camera imaging, using overlapping antenna ranges and image recognition to accurately determine chip positions, types, and numbers, and identifies illicit chips by correlating RFID and image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If RFID tags are used to read detailed chip information, then information completeness is improved, but position accuracy deteriorates due to overlapping antenna ranges
Solution Approach 1:
The system divides the reading area into multiple segments, each assigned to a specific antenna. By segmenting the coverage area and using multiple antennas with overlapping ranges, the system can determine chip position based on which antenna reads the RFID tag, thereby resolving the contradiction between information completeness and position accuracy.
2Measurement precision
If camera imaging is used to identify chip position and type, then position accuracy is improved, but information completeness deteriorates due to inability to read detailed chip data
Solution Approach 1:
The system merges two different identification approaches: camera imaging for position and type identification, and RFID reading for detailed information extraction. By combining these two systems, the patent achieves both position accuracy from the camera and information completeness from the RFID tag, resolving the contradiction between these two features.
3Area of stationary object
If multiple antennas are deployed to cover betting areas, then coverage area is improved, but position accuracy deteriorates due to overlapping reading ranges
Solution Approach 1:
The system segments the betting area into multiple zones, each primarily covered by a specific antenna. By defining segmented coverage areas and using the segmenting principle, the system can determine chip position based on which antenna's segment the chip falls into, thereby maintaining both wide coverage and position accuracy despite overlapping antenna ranges.
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
The system enhances the accuracy of chip identification and detection of illicit chips, ensuring precise tracking and preventing fraud by integrating RFID and camera technologies.
Implementation Method 1
an RFID tag, and a reader for reading the information stored in the RFID tag using the antenna
Data Source
AI summary
A gaming table system comprises: a camera configured to take an image of a chip stack placed on a gaming table to generate an image; an image recognizing portion configured to analyze the image to recognize a position of the chip stack and a type and number of gaming chip; a plurality of antennas configured to read an RFID tag of the gaming chip; and a chip judging portion configured to associate a reading result of the RFID tag by each of the plurality of antennas and a recognizing result of the chip stack by the image recognizing portion with each other.