Door lock sensor and alarm

摘要

A door lock mechanism is disclosed that includes door lock and alarm features. The mechanism includes a controller and a sensor useful to detect motions that are representative of attempted access through a door to which the door lock mechanism is attached. The controller can set an alarm condition if a measured motion, such as a measured acceleration, meet and/or exceeds a threshold. If an appropriate access control credential is provided through a user device then the alarm condition may not be set by the controller. The door lock mechanism can be coupled to a remote station via a communications link if needed, such as a radio frequency link. The remote station can additionally be in communication with the door lock mechanism via a network. The remote station can be used to send and receive messages regarding door lock mechanism status, configuration, etc.

主权项

1. An apparatus comprising:
a door lock mechanism structured to operate a lock that permits entry through a door and configured to be installed with a door panel; a sensor coupled to the door lock mechanism and operable to detect motion of the door panel, the sensor including a first accelerometer configured to sense an angular acceleration of the door panel and a second accelerometer configured to sense a centripetal acceleration of the door panel, the sensor also operable to output a data signal representative of the angular acceleration and the centripetal acceleration; a user input device structured to receive an authentication from an authorized user; and a controller in communication with the sensor and coupled to the lock, the controller operable to analyze the data signal representative of the angular acceleration and the centripetal acceleration, and to trigger an alarm if the data signal satisfies an alarm condition and the authentication is not received by the controller.