Central access control system
OwnerI-Ting Sheninventor
Life of this patent
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Abstract
A central access control system (10) includes a plurality of doors (44), a plurality of door locks (20) respectively mounted to the doors (44), a control device (33) connected to the door locks (20), and an unlocking device (40) for setting the control device (33) to be in an enabling state or a forbidding state. When the control device (33) is set to be in the forbidding state, the control device (33) outputs a forbidding signal to all of the door locks (20) to set the door locks (20) in a locking state. When the control device (33) is set to be in the enabling mode, the control module (33) outputs an enabling signal to all of the door locks (20), and a locking state or an unlocked state of a locking mechanism (24) of each door lock (20) remains unchanged.
Claims4
A central access control system comprising:
- a plurality of doors, with each of the plurality of doors movable between a closed position and an open position;
- a plurality of door locks respectively mounted to the plurality of doors, with each of the plurality of door locks including a latch driving device and a latch actuatable by the latch driving device to move between a latching position and an unlatching position, with each of the plurality of door locks further including a locking mechanism for prohibiting operation of the latch driving device, a first manual setting device, an electric setting device, and a door lock control unit electrically connected to the electric setting device, with the first manual setting device and the electric setting device configured to set the locking mechanism into a locking state or an unlocked state;
- a control device including a control module electrically connected to the door lock control units of the plurality of door locks, with the control module configured to simultaneously move the latches of the plurality of door locks into the latching position;
- and
- an unlocking device physically removably coupled to the control device and configured to match with the control module of the control device to obtain control, with the unlocking device configured to set the control device to be in an enabling state or a forbidding state,
- with one of the plurality of doors in the closed position and the latch of a corresponding one of the plurality of door locks in the latching position, the one of the plurality of doors is not permitted to move from the closed position to the open position,
- with one of the plurality of doors in the closed position and the latch of a corresponding one of the plurality of door locks in the unlatching position, the one of the plurality of doors is permitted to move from the closed position to the open position,
- with the locking mechanism of one of the plurality of door locks set by the first manual setting device or the electric setting device to be in the locking state, the latch driving device of the one of the plurality of door locks is not permitted to drive the latch of the one of the plurality of door locks from the latching position to the unlatching position,
- with the locking mechanism of one of the plurality of door locks set by the first manual setting device or the electric setting device to be in the unlocked state, the latch driving device of the one of the plurality of door locks is permitted to drive the latch of the one of the plurality of door locks from the latching position to the unlatching position,
- with the unlocking device physically coupled to the control device, the control device is set by the unlocking device to be in the enabling state, the control module outputs an enabling signal to the door lock control units of the plurality of door locks, the electric setting devices of the plurality of door locks are not operative, and the locking mechanism of each of the plurality of door locks in the unlocking state or the locked state remains unchanged, and
- with the unlocking device physically removed from the control device, the control device is set by the unlocking device to be in the forbidding state, the control module outputs a forbidding signal to the door lock control units of the plurality of door locks, the electric setting devices of the plurality of door locks set the locking mechanisms of the plurality of door locks to be in the locked states, and the plurality of door locks is locked simultaneously.
Dependencies are inferred from the claim text.