| 主权项 |
1. An access control system comprising:
a portable user device including a near field communication (NFC) component and a memory component that stores an identification data entry corresponding to said portable user device; an access control apparatus including a first NFC unit, a first processor coupled to said first NFC unit, and a first memory storage that is coupled to said first processor and that stores a first valid user list, said access control apparatus being operable to switch between an access-denying state and an access-permitting state; and a portable administrator device including a second NFC unit, a second processor coupled to said second NFC unit, and a second memory storage that is coupled to said second processor and that stores a second valid user list; wherein, when said NFC component of said portable user device and said first NFC unit of said access control apparatus are placed within an effective communication range of each other, said NFC component and said first NFC unit are operable to enable communication between said portable user device and said access control apparatus to permit transmission of the identification data entry stored in said memory component of said portable user device to said access control apparatus, said first NFC unit receives the identification data entry transmitted by said NFC component, said first processor is configured to determine whether or not the identification data entry received from said NFC component is valid with reference to the first valid user list stored in said first memory storage, and said first processor is configured to switch said access control apparatus to operate in the access-permitting state when the identification data entry is determined by said first processor to be valid; wherein, when said first NFC unit of said access control apparatus and said second NFC unit of said portable administrator device are placed within an effective communication range of each other, said first NFC unit and said second NFC unit are operable to enable communication between said access control apparatus and said portable administrator device, and said first processor of said access control apparatus and said second processor of said portable administrator device are operable to synchronize contents of said first valid user list stored in said first memory storage and said second, valid user list stored in said second memory storage. |
