A retrofit module configured for use with a door closer having a pinion. The retrofit module generally includes a case, an output shaft, a motor, and a control assembly. The output shaft is rotatably mounted in the case, and is configured for rotational coupling with the pinion. The motor is mounted to the case, and is operable to rotate the output shaft in a door-opening direction. The control assembly is mounted to the case, and is configured to operate the motor to drive the output shaft in the door-opening direction in response to an actuating signal.

A vehicle door system is disclosed. The system comprises an actuator, a power source, and a controller. The actuator is configured to adjust a position of a door. The controller is configured to control the actuator with energy provided by the power source. The controller is further configured to identify a charge level of the power source and compare the charge level to at least one threshold. In response the charge level being less than the at least one threshold, the controller is configured to output a warning signal.

A garage door opener system having a garage door opener and a remote input device electrically connected to the garage door opener by an electrical conductor. The remote input device receives power by the electrical conductor. The remote input device includes a device controller to communicate an event message, monitor for an acknowledgement message within a time period, and repeat the event message when the acknowledgement message is not received within a time period. The garage door opener includes a master controller. The master controller receives the event message and communicates the acknowledgement message in response to receiving the event message. Also disclosed is a method of operating the garage door opener system.

The system is constituted by physical and electrical barriers, with components of sensing and alarm of the first and of connection and activation of the last, all connected to the internal source constituted by set of batteries or conventional electrical system, the last one provided of batteries pack, for coverage of eventual electrical supply failures, for the length of time considered more convenient by the user. The system prevents access to closed or semi-closed enclosures, so that the detection by the sensing and alarm component of the simple approach of intrusion agent at a distance below that established activates the electrical barrier connection and activation component fed by its own sources or conventional, substitutable by the own sources in case of external supply drop, making the entire energized electric barrier practically impregnable to burglary, due to the discharge of high voltage and low amperage, as appropriate.

A system for use with an autonomous working machine such as a robotic lawn mower. The system may allow communication (directly or indirectly) between the machine and a gate or other barrier opening to allow unattended or remotely-controlled passage of the machine through the gate. In some embodiments, the mower may include a vision system operable to detect unknown objects within an area adjacent to the gate.

A modular garage door opener system and method including a garage door opener having a motor that is configured to be coupled to a garage door to open and close the garage door. The garage door opener includes a first accessory port including a first accessory mounting interface and a second accessory port disposed on the garage door opener including a second accessory mounting interface. An accessory device including a first mounting interface engages the first accessory mounting interface to couple the accessory device to the first accessory port. The accessory device may be disengaged from the first accessory mounting interface and then engage the second accessory mounting interface to couple the accessory device to the second accessory port. Additionally, a second accessory device may engage the first accessory port after disengagement of the accessory device.

A garage door opener system having a garage door opener and a remote input device electrically connected to the garage door opener by an electrical conductor. The remote input device receives power by the electrical conductor. The remote input device includes a device controller to communicate an event message, monitor for an acknowledgement message within a time period, and repeat the event message when the acknowledgement message is not received within a time period. The garage door opener includes a master controller. The master controller receives the event message and communicates the acknowledgement message in response to receiving the event message. Also disclosed is a method of operating the garage door opener system.

A system for the fixing and/or emergency opening of a leaf of a door, a window or the like comprises a drive having at least one mechanical energy storage device, which is charged by an opening movement of the leaf and is discharged by a closing movement of the leaf, at least one electric motor, the motor shaft of which is operatively connected to the leaf, and open-loop and/or closed-loop control electronics for actuating the electric motor. The electric motor can be actuated by means of the open-loop and/or closed-loop control electronics both for generator-like damping of the leaf movements and for fixing of the leaf against the force of the mechanical storage device and/or for electric motor-driven emergency opening of the leaf, in that the electric motor additionally can be supplied with external electrical energy from an external device, in particular such as a smoke detector control unit, a smoke and heat extraction control unit or the like, for the fixing and/or emergency opening of the leaf.

A powered barrier operator includes an actuator for moving a movable barrier, such as a garage door, a controller for regulating the operation of the actuator, the controller and actuator being adapted to be energized by a primary power supply. The operator further includes a housing enclosing the actuator and controller, and a secondary power supply assembly, which includes a secondary power supply, such as a rechargeable battery, and a carrier removably attachable to an exterior portion of the housing and adapted to retain the secondary power supply. The controller is operatively connectable to the primary power supply and secondary power supply, and configured to be powered by the secondary power supply when the power from the primary power supply is interrupted and be powered by the primary power supply whether or not the controller is operatively connected to the secondary power supply.

A modular garage door opener system and method including a garage door opener having a motor that is configured to be coupled to a garage door to open and close the garage door. The garage door opener includes a first accessory port including a first accessory mounting interface and a second accessory port disposed on the garage door opener including a second accessory mounting interface. An accessory device including a first mounting interface engages the first accessory mounting interface to couple the accessory device to the first accessory port. The accessory device may be disengaged from the first accessory mounting interface and then engage the second accessory mounting interface to couple the accessory device to the second accessory port. Additionally, a second accessory device may engage the first accessory port after disengagement of the accessory device.