Self-resetting drive and intelligent door lock

Abstract

A self-resetting drive comprising a motor (1), a gear module (2), and a rotary element (3), wherein the rotary element (3) is designed to receive a lock cylinder and a key located in the lock cylinder, and the motor (1) is connected to the rotary element (3) via the gear module (2), characterized in that the drive further comprises a control circuit (4) and a sensor (5), wherein the sensor (5) is connected to the control circuit (4) via a signal, wherein the control circuit (4) is designed to control the motor (1) in forward and reverse directions, and wherein the sensor (5) is designed to detect a rotation angle of the lock cylinder that arises as a result of external actuation without the lock cylinder being driven by the rotary element (3), and wherein the control circuit (4) controls the motor (1) in the opposite direction of rotation depending on the detected rotation angle.to reset the lock cylinder.

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