How to use infrared marked cards devices

When poker players use luminous marked cards to cheat at poker game, they also use invisible ink contact lenses or infrared sunglasses. But when you use IR marked cards devices to cheat at poker games, you also need to use back infrared ink marked cards.
We can install poker infrared camera inside daily item, such as daylight, LED light, sound box or wall picture, etc. The camera lens is away from the poker table 2 meters and the scanning distance can be customized.
How to use infrared marked cards devices? When the transmitter and the receiver are the same channel, the background will receive all information about back IR marked cards, the user can know poker points and poker suits from his partner in the background.
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