US Patent 11837040 Smart lock systems and methods

A door lock system can comprise a door lock movable between a locked state and an unlocked state. The door lock system can detect a first indication suggestive of a presence of a mobile computing device of a visitor. The door lock system can also detect a second indication suggestive of an identity of the visitor. Further, the door lock system can validate that the first indication and the second indication are associated with a known identity of the visitor.