Detailed IC card working principle and application

- Apr 13, 2018-

I believe we all know that businesses and companies that use loyalty cards can do more easily in membership management and loyalty promotion. Its principles and applications can also help us understand it better.

First, the ID card works:

The system consists of a card, a card reader and a background controller. The working process is as follows:

(1) The reader sends the carrier signal out through the antenna;

(2) The background computer makes corresponding processing and control for different applications according to the legitimacy of the ID card number.

(3) The card reader demodulates and decodes the received ID card return signal and sends it to the back-end computer;

(4) The ID card chip read control module modulates the data in the memory and modulates the signal on the carrier and sends it back to the card reader through the ID card internal antenna;

(5) After the ID card enters the working area of the card reader, a resonant circuit composed of an inductance coil and a capacitor in the ID card receives the carrier signal transmitted by the card reader, and the RF interface module of the chip in the ID card generates a power supply voltage from this signal. , reset signal and system clock, make the chip "activated";

Second, ID card application range:

Compared with the contactless IC card, the non-contact ID card does not need to insert or withdraw the card, avoiding various failures caused by poor mechanical contact, and therefore has the outstanding advantages of convenient, fast, reliable, long service life, and is particularly suitable for the flow of people. Large occasions.

THRC12/13 contactless ID cards can be mainly used for identification and addressing control, such as access control, security, attendance and other fields, but also can be extended to the exhibition, parks, hotels, restaurants and other public places, tickets, discount cards, etc. . And logistics, electronic labels, anti-counterfeit labels, one-off tickets and many other areas of the production process, postal parcels, air rail transport, product packaging, transportation and other departments. Although it is only a kind of read-only card, the use of background computer control management, even if it involves the issue of charge management can also be used in a certain range, such as cafeteria dining charge management.

For specific applications, the cardholder's personal data can be sent to the back-end computer to set up a database and configure the application software. When used, the card number read by the card reader can be sent to the back-end computer, and the cardholder's personal data can be retrieved from the database. Data, and then according to the specific operation, so the scope of application is extremely broad.