Supplementary card system of bank debit card and treatment method thereof
A processing method and technology of supplementary cards, applied in the direction of complete banking system, complete banking system, data processing application, etc., can solve problems such as inability to make full use of idle funds in accounts
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[0057] see image 3 The subsidiary card system device 100 of the bank debit card of the present invention includes a main card 301, a supplementary card 306, etc. and a system host 110. The system host 110 includes a data storage device 111 for storing customer data, a data processing device 112 for processing customer transaction requests, and a system host 110. A plurality of interfaces 113, the interface is connected to the external financial network 200 and the transaction terminal 300; the transaction terminal includes Internet channels, self-service equipment (ATM, CDS, POS, mobile banking), counters and other special equipment (not shown in the figure) .
[0058] The data storage device 111 has a built-in account device, and the data processing device 112 identifies the interface 113 for transmitting customer transaction requests, that is, identifies which external financial network the source of the customer transaction request belongs to, and then selects the account ...
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