Method and device of printing dynamic two-dimensional codes according to cashier's machine transaction data

Abstract

The invention provides a method and device of printing dynamic two-dimensional codes according to cashier's machine transaction data. The device is connected between a cashier's machine and a receipt printer, and comprises a data acquisition module, a data analysis module, a two-dimensional code generation module, a network communication module and a printing output module. The method is based on the device, and comprises: the data acquisition module obtaining printing data of the cashier's machine sent to the receipt printer; the data analysis module generating a unique code number for a receipt, and obtaining a transaction total amount; the two-dimensional code generation module generating a chained address according to the transaction total amount and the unique code number of the receipt, and coding the chained address in a two-dimensional code mode; the network communication module being in communication connection with a server through the GSM; and the printing output module driving the receipt printer to print the receipt. The device is a plug-and-play device, does not need netting twine or Wi-Fi connection, can dynamically print two-dimensional codes and advertisements, is convenient to use, and can upload transaction data through the network to provide basis for long-term data analysis and marketing.

Description

technical field [0001] The invention belongs to the field of data processing, and relates to a method and a device for printing a dynamic two-dimensional code according to transaction data of a cash register. Background technique [0002] At present, only when customers consume through the Internet, merchants can obtain the customer's consumption data, mainly which products are consumed, so that different marketing activities can be carried out for different customers. For physical stores such as traditional stores and supermarkets, most merchants are unable to make a judgment based on the product or amount purchased by the customer immediately after the customer consumes. And do different marketing activities. If you want to make marketing actions in the first time, you need an extremely complicated cash register system and a lot of personnel training, which is unrealistic for most offline merchants. [0003] The transaction data of traditional cash registers cannot be ef...

AI Technical Summary

Problems solved by technology

However, in the above scheme, the POS machine and the cash register need to be modified to obtain the transaction data, and only the total transaction amount can be obtained, but not the transaction details, including product name, quantity, unit price, etc. The generated QR code needs to be processed by a dedicated App scan, not very versatile

This solution cannot obtain transaction details, so it is impossible to analyze customer consumption behavior

In addition, the obtained data cannot be uploaded or saved in this solution, so it becomes impossible to collect and analyze the transaction data of a large number of offline merchants

Unable to upload the obtained data, resulting in the obtained data can only be used locally, but the local data processing capacity is limited, so it is basically impossible to do complex marketing activities

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