A system and method for user localization and acoustic voice interface are provided. The system including a locator system that includes at least one sensor that detects a location of a user and generates a location value, a listening system that includes a microphone array that includes at least one microphone, wherein the listening system receives the location value and collects an audio signal from the location defined by the location value, and a signal processor that generates a control signal based on at least the audio signal.

An intelligent door lock system includes a drive shaft of a lock device and a circuit coupled to an engine with a memory. A vibration/tapping sensing device is configured to be coupled to the lock device to lock or unlock the door. A device converts energy into mechanical energy coupled to the drive shaft.

An electronic lock includes a housing, and a locking system within the housing. The locking system includes electronics and a lock. More particularly, the housing contains therein, a controller and at least one electronic input device electrically coupled to the controller, where the controller causes the lock to transition between a locked position to an unlocked position responsive to input from the electronic input device.