RFID Chip Reader Below Table for Unobstructed Projection
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Solution Overview
Problem
Existing table game systems face challenges in accurately identifying the types and total value of chips stacked in bet areas on a game table, leading to complications with light transmission and image analysis, and obstructive components that interfere with the projected game board image.
Innovation Solution
A table game device with an RFID reader embedded below the game table to read identification information from chips and a projector above the table to project a game board image, allowing for accurate chip identification and game functionality without obstructing the projected light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a chip sensor is placed on the lower face of the table board to detect chips, then chip detection capability is improved, but the projected light is blocked and the image is interrupted
Solution Approach 1:
The RFID reader is moved from the lower face of the table board to the space below the table board, changing the spatial dimension of the detection device. This allows the reader to detect chips through the table board from below without blocking the light projection path from above, resolving the contradiction between detection capability and light transmission.
2Measurement precision
If a surveillance camera is placed above the table board to capture chip images, then chip identification capability is improved, but the projected light enters the camera and inhibits high-precision image analysis
Solution Approach 1:
The camera detection function is replaced by RFID readers positioned below the table board, which detect chips from a different spatial dimension. This eliminates the light interference problem that occurs when cameras are positioned above the table board facing the projected light.
3Adaptability or versatility
If both a projector and surveillance camera are placed above the table board to achieve electronic game table functionality, then game board image projection and chip identification are improved, but the device complexity and appearance are worsened
Solution Approach 1:
The system uses a projector positioned above the table board for image projection while placing RFID readers below the table board for chip detection. This spatial separation in different dimensions allows both functions to coexist without increasing device complexity or affecting appearance, as the readers are hidden in the space below the table.
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
This configuration enables automatic and accurate identification of chip values and authenticity, maintaining a simple and unobstructed game table appearance, enhancing the precision of chip identification and game experience.
Implementation Method 1
an RFID reader disposed below the upper face of the game table to be opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area
Implementation Method 2
a projector disposed in a space above the game table, the projector being configured to project a game board image on the upper face of the game table
Data Source
AI summary
A table game device includes: a chip for bet, the chip integrally including an RFID tag having identification information including a virtual value of virtual currency written to be readable; a game table having an upper face on which at least a game area and bet areas for a predetermined number of players are configured, the game area being for playing a game, the bet areas being for placing a chip to bet to a result of the game; an RFID reader in the game table opposed to each bet area, the RFID reader being configured to read the identification information from the RFID tag of the chip placed in the bet area; and a projector disposed in a space above the game table and configured to project a game board image on the upper face of the game table to correspond to the game area and the bet areas.