How many days does the epidemic access card hold?

You can go out at any time as long as you meet the requirements of the prevention and control personnel.

The basic definition of access card The original intelligent access control system consists of a host, a card reader and an electronic lock (a computer and a communication converter are added when networking), and card reading is a non-contact card reading method.

Only when the cardholder quickly swings the card near the card reader (5- 15cm) can the card reader sense that there is a card and guide the information (card number) in the card to the host computer, which will first review the illegality of the card before deciding whether to close the door. As long as it is within the valid credit card category, all processes can realize the access control management function.