Data acquisition method based on TLV (Type Length Value) format for POS (Point of Sale) transaction center

Abstract

The invention relates to a data acquisition method based on a TLV (Type Length Value) format for a POS (Point of Sale) transaction center, which comprises the following steps: inputting an order and data information at a POS terminal; analyzing the order inputted at the POS terminal to acquire a custom information order or a fixed transaction information order; analyzing the inputted data information; extracting tags for the data from which the custom information order is acquired; and writing the analyzed data information to a background TLV data structure according to the extracted tags for the use during transaction processing. The data acquisition method based on the TLV format for the POS transaction center has the advantages that the flexibility of data acquisition at a POS terminal is improved, and custom information can be acquired conveniently; new structure variables are not needed when new transactions are processed, and therefore, the modification of background trading center programs is avoided, the update frequency of background programs is reduced, losses caused by background shutdown for maintenance are decreased, and benefits are increased; collected custom information orders can be used for multiple times without limitation so that more necessary information can be collected for a transaction without background limitations.

Description

technical field [0001] The invention relates to the technical field of financial POS transactions, in particular to a data acquisition method based on TLV format for a POS machine transaction center. Background technique [0002] With the development of the payment industry, more and more acquirers adopt the thin terminal mode as the processing solution of the POS transaction center. In this mode, the terminal obtains the necessary data of the transaction and sends it back to the center, and the center returns the transaction result after completing the transaction processing. Hand over to the terminal to display the transaction results. For the data collected by the terminal, the existing thin terminal center platform programs mostly use a fixed data structure for storage. This method can ensure the rapid positioning and use of data during the center processing process, and can support standard UnionPay transactions without modification , but for business transactions that...

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