A door lock apparatus, comprising a male component; a connection to a power source; a lock actuator, powered by the power source and configured to move the male component at least partially through a strike and into a box beyond the strike in the path of the male component to lock a door, wherein the male component comprises a plurality of parallel subcomponents oriented lengthwise in the direction of a path of the male component; a bed of sensors positioned in the box and configured to sense a number of parallel subcomponents that contact the bed after the male component has been moved into the box; and an alarm in communication with the bed, wherein the alarm is triggered when an attempt is made to lock the door and an insufficient number of parallel subcomponents contacting the bed has been sensed by the bed of sensors.

A lock wireless charging system includes a gateway (10) and a door lock (20). The gateway (10) includes a first micro-processing unit (101), a first signal-fetching unit (102), a first charging unit (103), a first signal-processing unit (104) and a first antenna unit (105). The door lock (20) includes a second micro-processing unit (201), a second signal-fetching unit (202), a second charging unit (203), a second signal-processing unit (204), a second antenna unit (205) and a storage unit (206). The first antenna unit (105) outputs the identification and sensing signals. The door lock (20) fetches and transmits the identification signal to the second micro-processing unit (201) to determine. The second micro-processing unit (201) responds to the first micro-processing unit (101) with a responsive identification signal. If the identification is successful, the sensing signal is converted into electricity, so the second charging unit (203) charges the storage unit (206).

A door frame has a first electromagnetic coil and a door lock has a second electromagnetic coil with a door bolt electromagnetically coupling together the first and second electromagnetic coils, thereby forming a transformer. Power is transferred from the door frame to door lock through the transformer. Communications from the door frame to the door lock may be provided by modulating electromagnetic energy to the first electromagnetic coil and demodulating the modulated electromagnetic energy received at the second electromagnetic coil. Communications from the door lock to the door frame may be provided by varying a load on the second electromagnetic coil and detecting the load change at the first electromagnetic coil.

A lock wireless charging system includes a gateway (10) and a door lock (20). The gateway (10) includes a first micro-processing unit (101), a first signal-fetching unit (102), a first charging unit (103), a first signal-processing unit (104) and a first antenna unit (105). The door lock (20) includes a second micro-processing unit (201), a second signal-fetching unit (202), a second charging unit (203), a second signal-processing unit (204), a second antenna unit (205) and a storage unit (206). The first antenna unit (105) outputs the identification and sensing signals. The door lock (20) fetches and transmits the identification signal to the second micro-processing unit (201) to determine. The second micro-processing unit (201) responds to the first micro-processing unit (101) with a responsive identification signal. If the identification is successful, the sensing signal is converted into electricity, so the second charging unit (203) charges the storage unit (206).

A wireless door lock power system includes a power transmitter configured to be coupled to a building power supply having a transmit face at or near a door jamb and a power receiver configured to be coupled to a door closably received in the doorjamb. The power receiver has a receive face at or near an edge of the door. The power receiver receives a wireless power transmission from the power transmitter. A chargeable battery is received in the door. The battery is electrically coupled to the power receiver. The battery receives power from the power receiver to recharge the battery. An electronic door lock is operably coupled to the battery. The electronic door lock has a lock electronically actuated to lock the door to the doorjamb.

The embodiments presented within provide methods, devices, and systems that improve access control through the use of smart cylinder locks. In one embodiment, a smart cylinder may perform a process including receiving a key, emitting an energy source of electromagnetic radiation; detecting a change in the energy source due to a physical property of the key, determining the physical property of the key from the change in the energy source, comparing the physical property with a predetermined value, and engaging a mechanism operatively coupled to a locking device that allows the locking device to lock or unlock when the physical property matches the predetermined value.