| CPC G07F 9/009 (2020.05) [G06Q 20/203 (2013.01); G06Q 20/40145 (2013.01); G07F 9/002 (2020.05); G07F 9/0235 (2020.05); G07F 9/105 (2013.01)] | 16 Claims |

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1. A vending machine for storing and selling commodities, comprising:
a control module, comprising a processor executing program codes to provide a vending service;
a user interface, connected to the control module, comprising a sensor sampling biometric characteristics of a user, and the user interface is configured by the control module for accepting a selection signal for selecting one of the commodities displayed on a commodity menu;
a communication module, connected to the control module, comprising a wireless transceiver, wherein the communication module is configured to receive commands from the control module, and communicate with a central system or the user; wherein:
the control module is configured to drive said sensor to capture the biometric characteristics of the user, and upload the biometric characteristics to the central system through the communications module, wherein the central system comprises a database storing associations of biometric characteristics and identity characteristics corresponding to one or more users; and
the control module is configured to receive, through the communication module, a search result from the database based on the biometric characteristics of the user, to determine commodities authorized for sale; wherein:
the control module is configured to determine, according to the search result, whether an identity characteristic corresponding to the biometric characteristics of the user satisfies a first condition;
when the identity characteristic satisfies the first condition, the control module is configured to generate a command to display a commodity menu with the restricted commodity; and
when the identity characteristic is undeterminable or does not satisfy the first condition, the control module is configured to display the commodity menu without the restricted commodity.
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