How to add an access card to a mobile phone

The method of adding access cards to mobile phones (taking Huawei p50 as an example) is as follows:

Operating environment: Huawei p50, HarmonyOS3.0.0, access card.

1. Click to open the wallet home page.

2. Then click "Open" to open the door.

3. Open the page and click Add Key.

4. After selecting the access card settings, you can use it.

Classification of access cards:

1, according to the shape

According to the shape, it is divided into standard cards and special cards. The standard card is an international uniform size card, with the size of 85.5 mm× 54 mm× 0.76 mm Nowadays, due to the personalized demand, printing is not limited by size, which leads to many kinds of "weird" cards in various countries around the world, which we call special-shaped cards.

2. By card type

Magnetic card (ID card): The advantage is lower cost; One card per person, generally safe, can be connected to a microcomputer, and has a record of opening the door. The disadvantage is that the card and equipment are worn and the service life is short; Cards are easy to copy; Both directions are difficult to control. Card information is easily lost due to external magnetic field, which makes the card invalid.

Radio frequency card (IC card): the advantage is that the card has no contact with the equipment, and it is convenient and safe to open the door; Long service life and theoretical data of at least ten years; High security, can be connected to a microcomputer, and has a door opening record; Can realize bidirectional control; Cards are difficult to copy. The disadvantage is that the cost is higher.