In order to secure a door in a locked position without a key, such as to resist a forced entry through the door, a removable, non-intrusive, remotely-controlled door locking apparatus is provided, which includes a rear plate for attachment against a surface of a door using an adhesive substance, a flange that extends from the rear plate under the door, and a cover for enclosing components on the rear plate. A DC-powered linear actuator connected to the rear plate and at least one electronics module configured to communicate wirelessly is within the cover. A foot of the actuator is configured to be extended in a lock state against a floor surface to secure the door or retracted in an unlock state, based on either a wireless signal received from a remote smart device or the state of a manual switch located on apparatus to control the actuator.

A access control system includes a catch configured to be affixed to an inner portion of an enclosure, a latch configured to engage the catch when the catch is attached to the enclosure and an access door of the enclosure is in a closed position. The access control system is configured to detect, using one or more sensors, when the latch is within a predetermined proximity of the catch, and responsive to detecting that the latch is not within the predetermined proximity of the catch, determine whether an authorized credential was received via a communication interface to open the latch, and when the authorized credential was received, register an authorized opening of the latch in a memory device, and when the authorized credential was not received, register an the unauthorized opening of the latch in the memory device and enter an alert state.

A garage door lock system is a security system for garage doors having two solenoids mounted to the roller tracks of the garage door which when activated extends a bar or rod through the rails to prevent the rollers at the edges of the garage door from traversing the rails. The system also includes a control unit, camera, motion sensors, and radio frequency transreceivers.

An electronic door lock including a magnetometer, an accelerometer, and a processor. The processor is configured to determine a status of a door with respect to a door frame using data provided by the accelerometer and magnetometer which collectively generate acceleration data, velocity data and positional data of the door. The processor provides data to a user interface or an alert device indicating one or more of: door open angle, prep-less door position, an acceleration alert, a door position alert, door sag, door frame rub, and triangulation of an intruder.

A latch is configured to be affixed to an inner portion of a door to an enclosure and to engage a catch attached to an inner portion of the enclosure when the door is in a closed position/A housing is affixed to an outer portion of the door and includes a memory device and a latch controller configured to detect when the latch is no longer within a proximity of the catch. The controller is configured to electronically open the latch to open the access door. The housing also includes an emergency access portal aligned with and providing access through the access door by an instrument to at least the catch to engage the catch and release the access door. The latch controller detects that the latch is no longer within the predetermined proximity of the catch and registers the opening of the latch in the memory device.

A door security apparatus includes a door-locking member and a sensor assembly. The door-locking member removably engages a plate. The door-locking member is a barricade that restricts movement of a door from a closed position to an open position while the door-locking member is engaged with the plate The sensor assembly is configured to detect engagement between the door-locking member and the plate.

A system for detecting the position of at least one moveable element of a window or door, the system comprising: at least one sensor for sensing a magnetic field, the at least one sensor being configured such that the magnetic field sensed changes as said moveable element moves; and a processor configured to receive output signals associated with the sensed magnetic field and to determine the position of said moveable element; wherein the system is configured to operate in a calibration mode and a normal mode, wherein in the calibration mode the system is configured to register at least an output value from said sensor when said moveable element is at a first predetermined position as a corresponding first reference value and wherein in the normal mode the processor means is configured to use the first reference value in determining the position of the at least one moveable element.

A door lock mechanism is disclosed that includes door lock end 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.

Methods and systems are disclosed that, in some aspects, provide an opening mechanism comprising an interior and an exterior door handle and sensors to detect movement of each door handle. A door position sensor may be provided. An alarm module for generating an alarm may be connected to at least one of the sensors. A method may include receiving a door handle actuation signal, determining whether the door handle actuation signal is from an inside door handle or an outside door handle and performing a function. One or more methods include determining an event, including an attempted entry, a forced entry and an incomplete entry.

An electronic door lock including a magnetometer, an accelerometer, and a processor. The processor is configured to determine a status of a door with respect to a door frame using data provided by the accelerometer and magnetometer which collectively generate acceleration data, velocity data and positional data of the door. The processor provides data to a user interface or an alert device indicating one or more of: door open angle, prep-less door position, an acceleration alert, a door position alert, door sag, door frame rub, and triangulation of an intruder.