PORTABLE TERMINALS AND DOOR LOCKS ARE INTERLOCKED

摘要

The present invention relates to a door lock, capable of automatically opening and closing a locking device by being installed on a door. More specifically, the present invention relates to a door lock interlocked with a portable terminal, capable of automatically unlocking a locking device by a user simply possessing a portable terminal which is authenticated for entry through a MAC address value, applied to a Bluetooth module of the portable terminal. The present invention comprises a digital door lock installed on a door, and including the locking device and a controller, opening and closing the locking device; a Bluetooth module installed inside the door lock, and connected to Bluetooth of the portable terminal in a search range; a MAC address recognizing module installed inside the door lock, and recognizing a MAC address value of the Bluetooth module depending on the connection of the Bluetooth in the search range; a sensing distance limiting module installed in the door lock, and limiting a distance for operation from the locking device by measuring the receiving sensitivity of the Bluetooth of the user having the authenticated MAC address value; and a microprocessor installed in the door lock, connected to the Bluetooth module, the MAC address recognizing module, the sensing distance limiting module, and the controller, monitoring, determining, authenticating, registering, and granting privileges of a user, a manager, and a third person through the MAC address value for the Bluetooth of the portable terminal, and automatically opening and closing the locking device when only the authenticated user is in the limited distance.