| 摘要 |
A payment instrument unit that can be connected to a vending machine, comprising a connecting member for connecting the payment instrument unit to the corresponding member of the vending machine, and a means of communicating with the vending machine by using a certain vending machine protocol, is characterized in comprising a first means that comprises a first data transmission device for receiving a contact request from wireless terminal equipment, and a second means comprising a second data transmission device for authenticating the user of the said wireless terminal equipment. The method for buying an item from a vending machine is characterized in that the contact request coming from the terminal equipment is transmitted to the payment instrument unit located in the vending machine, the contact request from the terminal equipment is received by the payment instrument unit at a certain stage of the purchasing transaction, the user of the said terminal equipment is authenticated, specification of the item to be bought is acknowledged by using the user interface of the vending machine, and the charging data are generated after the item has been specified. |
