Element (12) for holding a power supply device (5) for supplying power to an actuator (4) for controlling a movable screen (3), the actuator causing a drive shaft to rotate, the holding element comprising a body (120) provided with a hole (125) for receiving at least part of the power supply device and a longitudinal slit (126) on at least part of the body.

A method and system for changing light intensity that passes through a window is disclosed. The method includes securing a sheet with a plurality of portions to a window, wherein each portion has a respective transparency, and arranging the sheet in a first position such that a first portion of the sheet with a first transparency is placed in front of the window. In addition, the system is configured to allow the sheet to move from the first position to a second position, such that a second portion of the sheet with a second transparency is placed in front of the window.

Methods and apparatus to control architectural opening covering assemblies are disclosed herein. An example architectural opening covering assembly includes a manual controller operatively coupled to a tube to rotate the tube. The tube includes an architectural opening covering. The example architectural opening covering assembly also includes a motor operatively coupled to the tube to rotate the tube. A local controller is communicatively coupled to the motor to control the motor. The example architectural opening covering assembly further includes a gravitational sensor to determine an angular position of the tube.

A cordless motorized roller shade includes a motorized operation device, a shading device mounted on the motorized operation device and hanging down, and a combination module detachably mounted between the motorized operation device and the shading device. Thus, the roll cloth member of the motorized operation device is pressed by the holding units of the shading device so that the roll cloth member is kept at a straight state smoothly when hanging down. In addition, when the roll cloth member is moved upward, the rotary return wheel module of the motorized operation device aids the upward movement of the roll cloth member to reduce consumption of the electric power of the drive motor of the motorized operation device during operation so that the roll cloth member is folded upward in an energy-saving manner.

A motorized window treatment may provide a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment may include a covering material (e.g., a cellular shade fabric or a roller shade fabric), a drive assembly for raising and lowering the covering material, and a motor drive unit including a motor configured to drive the drive assembly to raise and lower the covering material. The motorized window treatment may comprise one or more battery packs configured to receive batteries for powering the motor drive unit. The batteries may be located out of view of a user of the motorized window treatment (e.g., in a headrail or in a battery compartment). The motorized window treatment may use various power-saving methods to lengthen the lifetime of the batteries, e.g., to reduce the motor speed to conserve additional battery power and extend the lifetime of the batteries.

A motorized window treatment provides a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment includes a covering material, a drive shaft, at least one lift cord rotatably received around the drive shaft and connected to the covering material, and a motor coupled to the drive shaft for raising and lowering the covering material. The window treatment also includes a spring assist unit for assisting the motor by providing a torque that equals the torque provided by the weight on the cords that lift the covering material at a position midway between fully-open and fully-closed positions, which helps to minimize motor usage and conserve battery life if a battery is used to power the motorized window treatment. The window treatment may comprise a photosensor for measuring the amount of daylight outside the window and temperature sensors for measuring the temperatures inside and outside of the window. The position of the covering material may be automatically controlled in response to the photosensor and the temperature sensors to save energy, or may also be controlled in response to an infrared or radio-frequency remote control.

A limit stop assembly for setting a travel limit position of a covering of an architectural-structure covering is disclosed. The limit stop assembly including a first state of operation and a second state of operation. The limit stop assembly being transitioned from the first state of operation to the second state of operation by moving the covering from a first position towards a second position. Transitioning the limit stop assembly from the first state of operation to the second state of operation automatically sets the travel limit of the covering for the second position. In one example of an embodiment, the limit stop assembly includes a screw shaft, a limit nut threadably received on the screw shaft, a hub, and a collar selectively movable between first and second collar positions.

An intelligent driving device is provided which comprise a housing, and an end face of the housing is provided with a motor and a power source; the power source and the motor are arranged up and down in parallel, a main control board is disposed inside the housing, the motor and the power source both are electrically connected to the main control board, and the power source, the main control board and the motor are arranged into a U shape. In this case, the electric curtain will be made shorter and applicable to mounting in the spaces of various sizes. Thus, the small size can be guaranteed, and more intelligent chips can be disposed, thereby satisfying the intelligent development of the electric curtains.

The present invention has provided a system and method for controlling an electric curtain, which comprises a remote controller end and a curtain end; the remote controller end comprising a first processor, a radio frequency transmitting module, and a button module; the button module and the radio frequency transmitting module are both in electrical connection with the first processor; the curtain end comprises a second processor, a curtain motor, and a radio frequency receiving module; the curtain motor and the radio frequency receiving module are both in electrical connection with the second processor, and the remote controller end further comprises a first NFC communication module in electrical connection with the first processor, and a second NFC communication module with a curtain motor ID; the first NFC communication module and the second NFC communication module are in communication connection, proving the efficiency of the matching of the electric curtain control system.

A wireless electric curtain control system includes a smart curtain, a wireless repeater and a remote control. The remote control is for sending a control signal to the wireless repeater; the wireless repeater is for receiving and sending the control signal to the smart curtain; the smart curtain includes a curtain body, a motor module and a wireless module; the wireless module is for receiving and feeding back the control signal of the wireless repeater to a motor module; the motor module controls the operation of the curtain body according to the control signal received by the wireless module. The wireless repeater sends the control signal to the wireless module of the smart curtain to control the motor module and the smart curtain and increase the signal transmission distance between the smart curtain and the remote control via a wireless transmission.