Working principle of hotel guest room magnetic card

Door cards, goods management in large supermarkets and independent charges in expressway are all related to radio frequency identification technology, which is passive radio frequency. The magnetic card can't send out energy on its own initiative, but it has a coil, which can receive the electromagnetic wave sent out by the card reader, and then generate vibration in it to obtain energy.

Send the information stored in it back to the card reader, which will process it after receiving it, and then send the processed data (balance, etc. ) to the magnetic card, and stored in the magnetic card for the next call.

Extended data:

Management performance:?

1. solves the defects of traditional door locks, improves the work efficiency for hotels, and uses one card for multiple purposes (it can be used to make a hotel card). ?

2. Time-controlled IC card solves the problem of tenants' arrears in rent and avoids the conflict between hotels and guests. ?

3. You can check the guest information and check-in record at any time.

4. The printing function eliminates the hotel's internal fraud and provides accounting reliability for finance. ?

5. Different lighting shows that when the guest locks the room, it avoids the embarrassing scene of the waiter opening the room (equivalent to a do not disturb), and the battery has a little undervoltage when it is used at a certain stage. ?

6. Using smart door locks can reduce personnel and time.

7. The key of the traditional mechanical door lock is lost and needs to be replaced (IC card smart door lock is not needed).

8. A beautifully printed IC card key is equivalent to an excellent advertisement.

Baidu encyclopedia-magnetic card