How does the access control reader work?

January 10, 2023

The disabled IC card (inductive IC card) reader is an important part of the access control system. It is the key equipment for the signal input of the access control system. If the access control system is compared to a person, the reader is like the human eye. It is related to the stability of the entire access control system. If an access control system controller and electric lock are all good, if the quality of the reader is problematic, it will also cause the door to fail to open, affecting the acceptance and use of the project.

The reader emits electromagnetic waves at a fixed frequency. The frequency is generally 13.56 MHZ. When the sensor card enters the electromagnetic radiation range of the reader

At this time, the coil on the proximity card will be triggered to generate current and trigger the antenna on the proximity card to transmit a signal to the card reader. This signal carries card information. The card reader converts the level signal into a digital serial number and transmits it to the local computer. The controller, the local controller uploads the information to the upper controller, and finally uploads it to the access control server. The access control server compares the card number with the information in the database to obtain all the card information.

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Author:

Ms. Yanjun Chen

E-mail:

quentin@zecheng.com.cn

Phone/WhatsApp:

+8613602572892

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