| 摘要 |
An AI(Artificial Intelligence) payment system for recommending an optimum card, and a payment device and a combination card payment terminal for the same are provided to enable a user to remove needed for holding several cards and recommend the card providing the most benefits to the user by automatically searching and comparing the benefits provided from each card. A POS(Point Of Sale) terminal(110) transmits a received integrated card ID and payment amount to an optimum card recommendation server(120), and receives priority information according to benefits provided from a plurality of cards mapped to an integrated card(10) from the server. The POS terminal processes payment by using the priority information, or processes the payment by displaying the priority information to the user and receiving card selection information from the user. The server generates the priority information including optimum card recommendation information for the mapped cards on the basis of the benefits provided from each card and a recommendation algorithm when the integrated card ID and the payment amount are received, and transmits the priority information to the POS terminal.
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