Patent ID: 9378596
Filing Date: 2016-06-28
CPC Classification: G07C,H04W

Claim Text:
1. A door access control system comprising: a passive door opening unit including a first memory storing an access identification number; a main control unit including a second memory storing a management identification number; a door lock including a latch head slideable between a latching position and an unlatching position, with the door lock further including a locking mechanism operably connected to the latch head, with the door lock adapted to be mounted to a door; a control module connected to the locking mechanism and controlling the locking mechanism to be in a locking state preventing movement of the latch head from the latching position to the unlatching position or an unlocking state permitting movement of the latch head from the latching position to the unlatching position; a power supply unit electrically connected to the control module; a main memory electrically connected to the control module, with the main memory storing an access list consisting of at least one authorized management identification number and at least one authorized access identification number; an active induction module electrically connected to the control module, with the control module configured for driving the active induction module to read the access identification number of the passive door opening unit and the management identification number of the main control unit; an infrared activation module electrically connected to the control module; an authorization button electrically connected to the control module, with the authorization button configured for performing authorization of door access authority; an authorization cancellation button electrically connected to the control module, with the authorization cancellation button configured for performing cancellation of door access authority, wherein when the main control unit or the passive door opening unit is within a detection range of the infrared activation module, the control module permits the power supply unit to provide electricity to the active induction module for operation, wherein when the main control unit or the passive door opening unit is not within a detection range of the infrared activation module, the control module does not permit the power supply unit to provide electricity to the active induction module, wherein when the active induction module operates and when the main control unit is within the communication range of active induction module, the active induction module is permitted to read the management identification number of the main control unit, wherein when the active induction module operates and when the main control unit is outside of the communication range of active induction module, the active induction module is prevented from reading the management identification number of the main control unit, wherein if the control module identifies that the management identification number of the main control unit is identical to the at least one authorized management identification number of the main memory, operations of the authorization button and the authorization cancellation button respectively for the authorization of door access authority and cancellation of door access authority are permitted, wherein if the control module identifies that the management identification number of the main control unit is not identical to any of the at least one authorized management identification number of the main memory, operations of the authorization button and the authorization cancellation button respectively for authorization of door access authority and cancellation of door access authority are prevented, wherein if the authorization button is operated and if the passive door opening unit is placed within the communication range of the active induction module, the control module obtains the access identification number of the passive door opening unit through the active induction module and stores the access identification number of the passive door opening unit in the main memory, and the control module adds the access identification number of the passive door opening unit into the access list of the main memory and sets the access identification number of the passive door opening unit as an authorized access identification number to grant door access authority to the passive door opening unit, wherein if the authorization cancellation button is operated and if the passive door opening unit is placed within the communication range of the active induction module, the control module obtains the access identification number of the passive door opening unit through the active induction module and compares the access identification number of the passive door opening unit with the access list of the main memory, and the control module deletes the access identification number of the passive door opening unit from the access list of the main memory or cancels the door access authority of the access identification number of the passive door opening unit to cancel the door access authority of the passive door opening unit, wherein when the active induction module operates and when the passive door opening unit is within the communication range of the active induction module, the active induction module is permitted to read the access identification number of the passive door opening unit, wherein when the active induction module operates and when the passive door opening unit is outside of the communication range of the active induction module, the active induction module is prevented from reading the access identification number of the passive door opening unit, when none of the authorization button and the authorization cancellation button are operated, the control module controls the locking mechanism to be in the unlocking state if the access identification number of the passive door opening unit is read by the active induction module and is identified to be identical to the at least one authorized access identification number in the main memory, and wherein when none of the authorization button and the authorization cancellation button are operated, the control module controls the locking mechanism to be in the locking state if the access identification number of the passive door opening unit is read by the active induction module and is identified to be not identical to any one of the at least one authorized access identification number in the main memory.