Read-write converting device of radio frequency smart card

Abstract

The invention relates to a read-write conversion device (10) for a radio frequency smart card, comprising a radio frequency link (11), a radio frequency antenna (12), a radio frequency transceiver module (13), a management control module (MCU) (14) and an upper monitor communication interface (15). Particularly, the MCU (14) provides a special software interface for an upper machine (23) through a program operating in the MCU (14) and through the interface, the upper machine (23) needs not to distinguish the working frequency of the radio frequency smart card but uniformly considers that the radio frequency smart card works at 13.56Mhz and read-writes the radio frequency smart card (21) working at other frequency in a manner of accessing an Mifare card which works at 13.56MHz. The read-write conversion device has excellent compatibility and the upper machine system designed for the Mifare card can carry out data exchange with the radio frequency smart card working at high frequency (for example UHF bands) only through a little modification.

Description

technical field [0001] The invention relates to a method or device for reading a record carrier, in particular to a device for reading a record carrier by using electromagnetic field changes, and especially to a read-write conversion device for a radio frequency smart card. Background technique [0002] In daily life, there are many occasions where card swiping operations are required, such as access control, public transportation, petty cash payment for catering, etc. The traditional method is that each person holds one or several radio frequency cards for card swiping operations in different applications. [0003] With the advancement and development of technology, mobile phones have become more and more popular, especially in cities, basically everyone has a mobile phone (hereinafter referred to as "mobile phone"). Therefore, using mobile phones to carry out " The "swipe card" operation, so that people do not need to carry too many cards, has naturally become a trend. On...

AI Technical Summary

Problems solved by technology

[0005] 1. The radio frequency smart card working at 13.56MHz has a small communication range due to the shielding of the mobile phone shell and the area of ​​the SIM card;

[0006] 2. Using the original smart card reading and writing device, the upper computer designed for the characteristics of Mifare cards cannot communicate normally with the RF smart card working in the high frequency band. It is necessary to make major modifications to the upper computer and the software working in it, which brings great benefits to the application. It's a great inconvenience

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