RFID Game Table Read Zoning for Adjacent Bet Area Accuracy
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Solution Overview
Problem
In casino game tables, the proximity of multiple read areas can lead to incorrect RFID tag readings, causing issues in managing game tokens accurately, as antennas may mistakenly read tags from adjacent areas.
Innovation Solution
A game table reading system with read-restriction antennas and a control device that restricts readings to specific areas, using a database to manage RFID tag information and user identification, ensuring accurate separation and management of game tokens across close proximity read areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple reading antennas are installed in close proximity to cover different betting areas, then the coverage area and functionality of the game table is improved, but reading accuracy deteriorates due to antennas mistakenly reading RFID tags from adjacent areas
Solution Approach 1:
The reading area is segmented into multiple distinct zones, each assigned to a specific antenna. The control device divides the overall reading area into first reading area and second reading area, with each area having dedicated antennas that only read RFID tags within their designated zone, preventing cross-reading between adjacent areas
Solution Approach 2:
Different reading areas are assigned different identification numbers to create unique local identifiers. The control device uses these local quality differences (distinct ID assignments) to distinguish which antenna read which tag, ensuring accurate attribution even when multiple antennas are in close proximity
2Productivity
If reading areas are placed in close proximity to maximize table utilization, then space efficiency is improved, but reliability of reading operations deteriorates due to tag misattribution between areas
Solution Approach 1:
The control device implements a feedback mechanism where each antenna reports which identification number it successfully read, and the control device uses this feedback to determine the correct reading area and update the database accordingly, ensuring reliable tag attribution
Solution Approach 2:
The control device acts as an intermediary between the multiple antennas and the database. It receives reading results from antennas, processes the identification numbers to determine which reading area the tag belongs to, and then updates the database, preventing misattribution errors
3Productivity
If multiple antennas operate simultaneously in adjacent areas, then reading speed and throughput are improved, but reading accuracy deteriorates due to electromagnetic interference and tag misreading
Solution Approach 1:
The system segments the reading operation by assigning unique identification numbers to different reading areas. Even when multiple antennas operate simultaneously, the control device can distinguish which area each tag belongs to based on the identification number, maintaining accuracy while allowing parallel operation
Solution Approach 2:
The system changes the parameter of identification number assignment to resolve conflicts. By assigning different ID numbers to different reading areas, the control device can differentiate between tags read by different antennas, allowing simultaneous operation without accuracy loss
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 enables separate and accurate reading of RFID tags in each area, ensuring proper management of game tokens, even when areas are densely packed, by restricting antenna readings to their designated zones and updating a database with precise user and token information.
Implementation Method 1
a plurality of reading antennas installed corresponding to each of the plurality of read areas for reading the RFID tags embedded in the game token placed in the corresponding read areas
Implementation Method 2
a read-restriction antenna configured to restrict the readings by the reading antenna so that the reading antennas do not read the RFID tag of the game token in the read areas other than the read area corresponding to the reading antenna
Data Source
AI summary
A game table reading system comprises: a game table having a plurality of read areas including a plurality of betting areas; a plurality of read antennas installed corresponding to each of the plurality of read areas for reading RFID tags embedded in game tokens; a read-restricted antenna that restricts reading by the read antennas so that the read antennas do not read the RFID tags of the game tokens other than the read area corresponding to the read antennas; a read control device that acquires the information stored in the RFID tag; a read restriction control device that controls the read restriction antenna; a database that stores information on RFID tags; and a management control device that updates the database based on the relationship between the information on the RFID tag read by the read antenna and the read area where the RFID tag was read.