Chengdu Vanke Diamond Plaza B? What's the seat password?

Identification card is the front-end equipment of access control system. Responsible for personalized detection of access targets. According to different working principles and usage methods, identification cards can be contact and non-contact, IC and ID, active and passive, etc. Their ultimate purpose is to be used as electronic keys, but they are different in convenience of use and confidentiality of system identification.

Contact means that the identification card, such as IC card and magnetic card, must be inserted into the card reader or put into the slot before reading the card. Contact IC identification card is to package the IC chip in a new standard PVC card, and read the data through the direct contact between the exposed chip contact point and the card holder of the card reader. @ @ @ Xin 'an One Card