A curtain remote controller and a method for setting remote control stroke thereof are provided, and the curtain remote controller controls the curtain driving motor through remote-control buttons; the managing buttons are used to set the upper and lower stroke interval of the curtain, so that the curtain moves within the interval and free adjustment of the stroke interval according to specific requirements is achieved. Meanwhile, the curtain remote controller adopts a conversion switch to form the remote control module and the setting module of the curtain remote controller, so that the function modules of the buttons are clearly divided to avoid situations such as the user is confused by too many buttons; it is convenient for users to identify each function module with a simple operation interface; the logical relationship of the curtain remote controller is simplified, and misoperation of the user is avoided.

A motor driven system for raising and lowering a window covering executes motor ramp trajectory speed control. The motor ramp trajectory limits acceleration of an external motor from the idle (stationary) state to full operating speed, and limits deceleration of the motor from full operating speed back to the idle state. This function reduces stresses on a continuous cord loop drive mechanism. A control system manages solar heating effects in response to sunlight entrance conditions such as system sensor outputs, external weather forecasts, and other data sources. The system automatically opens or close the window covering to increase or decrease admitted sunlight under appropriate conditions. The input interface of the control system includes a visual display and input axis, which are aligned vertically if the window covering mechanism raises and lowers the window covering, and are aligned horizontally if the window covering mechanism laterally opens and closes the window covering.

A curtain structure assembled with an accessory (900) includes a curtain rod (1), a frame (2, 3), and a coupling member (4A, 4B, 4C). The frame (2, 3) is detachably installed and movably fixed to an end of the curtain rod (1), and the fixed frame (2, 3) has a protruding structure (T1 or T2) protruding from an end of the curtain rod (1), and the protruding structure (T1 or T2) includes a fixed portion (25 or 35) with a driven wheel (23 or 24), and the coupling member (4A, 4B, 4C) is detachably connected between the protruding structure (T1 or T2) and the connected accessory (900) is disposed between the curtain rod (1) and the accessory (900). The electric fan has the effects of installing or moving the accessory (900) and the coupling member (4A, 4B, 4C), and adjusting the tightness of the belt effectively.

To allow more daylighting and protect against direct solar radiation, the system may include a window shading system that impacts an area (or area of interest). The system may adjust different window shades in different ways and for different periods of time to protect against a direct solar radiation onto an area of interest. The system may provide targeted shadows onto the area of interest. The system may also analyze or predict angles of solar rays that comprise the direct solar radiation and determine an impact of the solar rays on the area of interest, wherein the adjusting of window shades is based on the determining.

To allow more daylighting and protect against direct solar radiation, the system may include a window shading system that impacts an area (or area of interest). The system may adjust different window shades in different ways and for different periods of time to protect against a direct solar radiation onto an area of interest. The system may provide targeted shadows onto the area of interest. The system may also analyze or predict angles of solar rays that comprise the direct solar radiation and determine an impact of the solar rays on the area of interest, wherein the adjusting of window shades is based on the determining.

A motorized window covering system is presented having a rotatable drive element having a guide structure and a plurality of idler attachment elements and at least one drive element positioned over the rotatable drive element. A motor is connected to the rotatable drive element and controls operation of the window covering. An external battery tube assembly is connected by a conduit to the rotatable drive element and is configured to provide power to the motor. The external battery tube assembly includes a switch and controls operation of the motorized window covering. When pulled or lifted the external battery tube assembly initiates movement, stops movement or reverses movement of the motor. In this way, the system provides a unique way of controlling operation of a motorized window covering.

The present invention relates to an intelligent motorized curtain mechanism, wherein a first mounting box, a second mounting box, a bead chain length adjustment mechanism and a bead chain are provided, and a power control mechanism and a master drive mechanism are fixedly installed inside the first mounting box. The power control mechanism is arranged to drive the master drive mechanism, which forms a synchronous belt connecting with the bead chain through the slave mechanism and enables the master drive mechanism to move the bead chain.

To allow more daylighting and protect against direct solar radiation, the system may include a window shading system that impacts an area (or area of interest). The system may adjust different window shades in different ways and for different periods of time to protect against a direct solar radiation onto an area of interest. The system may provide targeted shadows onto the area of interest. The system may also analyze or predict angles of solar rays that comprise the direct solar radiation and determine an impact of the solar rays on the area of interest, wherein the adjusting of window shades is based on the determining.

The present invention has disclosed a clutch, a motor device, a curtain control device and a curtain. The clutch comprises a drive force outputting part, a transmission part, sleeved between the drive force outputting part, and a clutch piece mounting position is provided on the transmission part; a drive force receiving part with a driving force transmitting part, arranged on the side of the transmission part away from the driving force receiving part; a clutch control part, disposed on one side of the driving force receiving part, comprising a combination piece, disposed on the drive force receiving part; a separation accommodation zone, arranged between two combination surfaces; a clutch piece, arranged on the clutch piece mounting position. The embodiments of the present invention effectively solve the problems resulting from use of magnetic separation in realizing engaging and disengaging functions of an existing clutch.

An opening and closing device for a curtain mounted on a guiding part, the guiding part is provided with the curtain; the opening and closing device is used for driving automatic opening and closing of the curtain; the opening and closing device includes a mainframe and a connecting mechanism. The mainframe includes a shell, a driver and a driving wheel; the driving wheel and the driver are mounted in the shell, the driver drive the driving wheel to rotate. The connecting mechanism includes a hanging piece and a bracket; a first end of the bracket is inserted into the shell, the hanging piece is movably connected with a second end of the bracket and hung on the guiding part; the hanging piece can be moved vertically relative to the bracket so that the driving wheel is attached closely to the outer wall of the guiding part.