Can the original data in the access card be cleared?

1, each access card has a special number. Each card has its own data, which is stored in the hotel access control system. If you want to cancel the access card, you must apply to the property manager for cancellation. The administrator will find out the number of the access card you want to scrap in the database, and delete the data of this access card to make the data zero. At this time, the access card you hold cannot be used.

2. Some also have a special card writer, which can put the access card into the card writer to clear it. But if it is the kind of access card that supports copying, some of them can't be cleared once they are written. But also depends on what kind of access control machine it is, whether it is a networked access control machine or a simple independent access control machine. If it is networked, it can be cancelled by software. If it is a simple access control machine, you generally need to enter the programming state to cancel the card. Different machine operation codes are different.

What is an access card?

1. Access cards are used in the access control system, such as access cards, access cards, parking cards, membership cards, etc. Before issuing access cards to end users, the available areas and user rights are determined by the system administrator. Users swipe their cards to enter the management area. Users without access cards or permissions are not allowed to enter the management area. Access cards are mainly the following cards: EM card, M 1 card, TM card and CPU card. At present, EM card and M 1 card occupy almost all the access card application markets. Therefore, when we choose the application card, we'd better choose EM card or M 1 card as our main card. Because for other cards that are not commonly used, whether it is the maturity of technology or the matching of accessories, it will bring us a lot of trouble.

2. Basic definition of access card The original intelligent access control system consists of a host, a card reader and an electronic lock (computers and communication converters are added when networking). The card reader is a contactless card reader. 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. The host first examines the illegality of the card, and then decides whether.