Method for reading and writing RFID electronic tag data

Abstract

The invention discloses a method for reading and writing RFID (Radio Frequency Identification) electronic tag data. According to the method, the RFID electronic tag identification effectiveness is checked, and the integral reading and writing is realized; through two-stage database operation processing, practically stored fund information of a user is subjected to decryption operation; after the comparison result shows that no error exists, business data in an RFID electronic tag is read step by step; a specified data block and a standby data block of an RFID electronic tag identification are continuously subjected to reading and writing operation by calling DLL (Dynamic Link Library) software; after the complete information is formed, the decryption operation is completed; the complete information is transmitted into a local database through an online POS (Point Of Sale) machine and is transmitted into a center database through middleware; the two-stage database operation processing is realized; the business data operation is carried out; and finally, the integral writing-in and reading-out operation of business information data is realized. An application system can effectively recognize and manage RFID cards, and importantly, the integrality and the security of information data on the RFID electronic tag and the application system can be improved.

Description

technical field [0001] The invention relates to the technical field of RFID electronic tags, in particular to an RFID electronic tag backup method. Background technique [0002] The consumption and dining system based on RFID application is based on the widely used employee access control RFID electronic tag (referred to as RFID card), based on advanced computer technology, communication technology and non-contact RFID card technology, which brings convenience to corporate employees. , fast and modern payment methods. Each employee is equipped with a smart employee RFID card. It is used in the access control and meal consumption system to realize "one card with multiple functions". [0003] Read and write the information on the RFID electronic tag through the RFID electronic tag reading and writing circuit (such as POS machine, RFID reader), perform data communication with the transceiver device through a dedicated data processing and communication interface, and transmit ...

AI Technical Summary

Problems solved by technology

[0004] Problems are prone to occur when the existing RFID electronic tag identification and memory capacity exceed the DLL's one-time read and write capacity

In practical applications, for the electronic tags produced by each manufacturer, the structure of the memory is the same, but there will be differences in the size of the memory

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