Ⅰ Technological background RFID is short for Radio Frequency Identification, which has been widely applied in various fields such as communication, finance, transportation, safety protection, production, logistics and door lock. RFID DOOR LOCKS is a new brand of modern intelligence door locks, which integrates a series of excellent funtions like electromagnetic wave radio frequency technology, induction type IC cards, Smart Card System such as attendance checking/door lock/comsuption cards, chord card- punching sound, wireless collector, Chineses/English software, offline/online usage, frequently-used functions, motor drive, big-/medium-/small-sized lock core, delicate appearance and convenient dismounting, suitable for various places such as high-class hotels, traveling resorts, intelligence office buildings and intelligence neighborhoods. Ⅱ Administrative modes: two administrative modes of administrative card and software. 1 Administrative card mode: To successfully issue a new user’s card, you only need to punch the administrative card (or setup card) within the induction zone of the lock body once, then punch the new-issued user’s card within the induction zone once. To delete a user’s card, you only need to punch the administrative card (or setup card) within the induction zone of the lock body three times; then put an induction card within the induction zone at discretion, when you hear the beep, that means the card is administrative card, and the original card’s right to open the door is bannde and need to be issued again. The administrative mode is suitable fof use in households, villas and small office buildings, which can set up and delete the right to open doors, but cannot set up door-opening time limit. All user’s cards can be deleted and set up again and again. 2 Mode of administration by software: consisting of computers (self-provided), administrative software, card sender,