A door stop rod assembly includes a base having a room defined therein. A neck and a yoke are respectively connected to two opposite ends of the base. The collapsible part is connected to the neck. The yoke includes a notch against which the door knob contacts. A warning device is located in the room of the base and includes a circuit, a power supply, a buzzer, a vibration detector, a static electricity sensor and a switch. When the vibration detector detects vibration from the door knob due to exterior touch of the door knob, the circuit activates the buzzer to warn the persons inside the house.

A door operation management system (100), method and computer program product for controlling operation of a door (1), the door operation management system (100) comprises at least a first movement sensor device (10a, 10b, 10c) arranged at the door (1), for determining a movement of the door (1); and a processing circuitry (102a, 102b) operatively connected to the at least first movement sensor device (10a, 10b, 10c) configured to cause the door operation management system (100) to obtain at least a first sensor data (dd1, dd2, dd3, dd4) from the at least first movement sensor device (10a, 10b, 10c); and determine at least a first state (st1, st2, st3, st4) of the door (1) based on the at least a first sensor data (dd1, dd2, dd3, dd4).

A sensor system to reliably alert and inform a user of the status of a window, in particular, a sensor system which reliably informs the user if the window is both in a closed position and also that the locking mechanism is in the locked configuration. There are thereby provided two independent sensor systems within the casement window handle assembly which are arranged to verify that the window handle is in the locked configuration and also that the window sash is in the closed position relative to the window frame. The casement window handle assembly comprises a first sensor for indicating the position of the window handle and this comprises a first sensor component mounted to the pivotal/movable handle and a second component fixed within the mounting base.

A door stop rod with warning function for anti-theft assistance on a door lock. The door stop stand includes a clamping holder and an early warning device. The clamping holder includes an accommodation chamber, and an assembly section and a door clamping part disposed on two opposite sides thereof. The assembly section is combined with an end of a stop rod, and the door clamping part includes a clamping part for clamping the door lock. The early warning device is disposed in the accommodation chamber and includes a control circuit, a power supply device, a buzzer, and a vibration detection device. When the vibration detection device detects vibration of the door lock, the control circuit controls the buzzer to make a warning sound, so as to warn people indoors to respond countermeasures, call police or ask for help early, thereby effectively protecting safety of lives and property.

A device that can be used as a second line of security to a primary door lock that sounds an alarm to notify the occupants of an unauthorized entry attempt. The device is durable, convenient, lightweight, and has a durable small circular plastic buzzer on an elongated arm/bar of the device, which buzzer stays out of view yet alarms the occupants of intruders as well as provides a sense of security for anyone traveling to hotels, motels, dorms, houses, apartment, schools, daycares or anywhere an extra line of security may be needed.

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.

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.

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.

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.

Methods, systems, and apparatus for attempted entry detection are disclosed. A method for monitoring a property includes receiving, from a smart lock of a door located at a property monitored by a monitoring system, smart lock data that reflects a condition of the smart lock; receiving, from a sensor of the monitoring system, sensor data; analyzing the smart lock data and the sensor data; based on analyzing the smart lock data and the sensor data, determining that an attempted door entry is occurring; and in response to determining that an attempted door entry is occurring, performing a monitoring system action. Determining that an attempted door entry is occurring can include determining, based on the sensor data, that a person is located near the smart lock; and determining, based on analyzing the smart lock data, that the smart lock data satisfies criteria for an attempted door entry.