Abstract:
A wirelessly controllable curtain system includes wireless control and operation systems. The wireless control system includes a wireless control module and a wireless sending module. The wireless operation system is coupled to a curtain and has a wireless receiving module coupled to the wireless control module, a motor controller, and a motor. The wireless control module is configured to send an open/close control signal to the wireless sending module for on passing to the wireless receiving module. The wireless receiving module is configured to send an operation signal, corresponding to the open/close control signal, to the motor controller. The motor rotates in one direction or in the opposite direction to open or close the curtain according to the operation signal. A wirelessly controllable curtain circuit is also provided.

Description:
FIELD 
       [0001]    The subject matter herein generally relates to lighting and environmental control. 
       BACKGROUND 
       [0002]    A curtain is generally used in a window to adjust room light. Generally, the curtain is opened or closed manually. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
           [0004]      FIG. 1  is a block diagram of an embodiment of a wirelessly controllable curtain system and a curtain. 
           [0005]      FIG. 2  is a block diagram of an embodiment of a wirelessly controllable curtain circuit. 
           [0006]      FIG. 3  is a circuit diagram of a wireless receiving circuit, a motor control circuit, and a motor circuit of  FIG. 2 . 
       
    
    
     DETAILED DESCRIPTION 
       [0007]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
         [0008]    Several definitions that apply throughout this disclosure will now be presented. 
         [0009]    The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
         [0010]      FIG. 1  illustrates a wirelessly controllable curtain system in accordance with an embodiment. The wirelessly controllable curtain system can include a wireless control system  10  and a wireless operation system  20 . The wireless operation system  20  is coupled to a curtain  50  through a sash cord  30 . The wireless control system  10  is configured to send a control signal to the wireless operation system  20  to pull the curtain  50  back or pull the curtain closed, via the sash cord  30 . The wireless control system  10  can be positioned in a place away from the curtain  50 , such as bedside, sofa, or dining table. 
         [0011]    The wireless control system  10  can include a wireless control module  11  and a wireless sending module  12 . The wireless control module  11  has an open key  112  and a close key  113 . Each of the open key  112  and the close key  113  is an entity or virtual key. 
         [0012]    The wireless operation system  20  can include a wireless receiving module  21 , a motor controller  22 , and a motor  23 . The wireless receiving module  21  is coupled to the wireless sending module  12  wirelessly, such as by infrared ray, BLUETOOTH, or WIFI. The motor controller  22  is coupled to the motor  23  to control a rotating direction of the motor  23 . The sash cord  30  is secured to rotating ports of the motor  23 . 
         [0013]    When the open key  112  is selected, the wireless control module  11  sends an open control signal to the wireless sending module  12 . The wireless sending module  12  launches the open control signal to the wireless receiving module  21 . The wireless receiving module  21  sends a first operation signal to the motor controller  22 . The motor controller  22  controls the motor  23  to rotate in a first direction according to the first operation signal. The motor  23  pulls the sash cord  30  to open the curtain  50 . 
         [0014]    When the close key  113  is selected, the wireless control module  11  sends a close control signal to the wireless sending module  12 . The wireless sending module  12  launches the close control signal to the wireless receiving module  21 . The wireless receiving module  21  sends a second operation signal to the motor controller  22 . The motor controller  22  controls the motor  23  to rotate in a second direction, opposite to the first direction, according to the second operation signal. The motor  23  pulls the sash cord  30  to close the curtain  50 . 
         [0015]      FIG. 2  illustrates a wirelessly controllable curtain circuit in accordance with an embodiment. The wirelessly controllable curtain circuit can include a wireless control circuit  61 , a wireless sending circuit  62 , a wireless receiving circuit  63 , a motor control circuit  64 , and a motor circuit  65 . 
         [0016]    The wireless control circuit  61  is configured to send the open or close control signal to the wireless sending circuit  62 . The wireless sending circuit  62  is configured to launch the open or close control signal. 
         [0017]      FIG. 3  illustrates that the wireless receiving circuit  63  can include a wireless signal receiving pin  631 , a first output pin  632 , and a second output pin  633 . The wireless signal receiving pin  631  is configured to receive the open and close control signals. When the wireless signal receiving pin  631  receives the open control signal, the first output pin  632  outputs a high level voltage signal (indicated by 1) and the second output pin  633  outputs a low level voltage signal (indicated by 0). The wireless receiving circuit  63  then sends a first operation signal  10  to the motor control circuit  64 . When the wireless signal receiving pin  631  receives the close control signal, the first output pin  632  outputs a low level voltage signal (indicated by 0) and the second output pin  633  outputs a high level voltage signal (indicated by 1). The wireless receiving circuit  63  then sends a second operation signal  01  to the motor control circuit  64 . 
         [0018]    The motor control circuit  64  can include a first input pin  641 , a second input pin  642 , a first control pin  643 , a second control pin  644 , a third control pin  645 , a fourth control pin  646 , a first field-effect tube (EFT) Q 1 , a second EFT Q 2 , a third EFT Q 3 , and a fourth EFT Q 4 . The first input pin  641  is coupled to the first output pin  632 . The second input pin  642  is coupled to the second output pin  633 . The first control pin  643 , the second control pin  644 , the third control pin  645 , and the fourth control pin  646  are coupled to the grid electrode G of the first EFT Q 1 , the second EFT Q 2 , the third EFT Q 3 , and the fourth EFT Q 4  respectively. The drain electrode D of each of the first FET Q 1  and the second FET Q 2  is coupled to a direct current power supply. The source electrode S of each of the third FET Q 3  and the fourth FET Q 4  is grounded. The source electrode S of the first FET Q 1  is coupled to the drain electrode D of the second FET Q 2 . The source electrode S of the third FET Q 3  is coupled to the drain electrode D of the fourth FET Q 4 . A first node A is defined between the source electrode S of the first FET Q 1  and the drain electrode D of the second FET Q 2 . The first node A is grounded via a capacitor C 1  and coupled to a first rotating pin  651  of the motor circuit  65 . A second node B is defined between the source electrode S of the third FET Q 3  and the drain electrode D of the fourth FET Q 4 . The second node B is grounded via a capacitor C 2  and coupled to a second rotating pin  652  of the motor circuit  65 . 
         [0019]    When the motor control circuit  64  receives the first operation signal  10 , the first input pin  641  has a high level voltage signal, and the second input pin  642  has a low level voltage signal. The first control pin  643 , the second control pin  644 , the third control pin  645 , and the fourth control pin  646  respectively output a high level voltage signal, a low level voltage signal, a low voltage signal, and a high level voltage signal. Thus, the first FET Q 1  and the fourth FET Q 4  are switched on, and the second FET Q 2  and the third FET Q 3  are switched off. The first node A outputs a high level voltage signal, and the second node B outputs a low level voltage signal. The first rotating pin  651  receives the high level voltage signal, the second rotating pin  652  receives the low level voltage signal, and the motor  23  is rotated in the first direction. 
         [0020]    When the motor control circuit  64  receives the second operation signal  01 , the first input pin  641  has a low level voltage signal, and the second input pin  642  has a high level voltage signal. The first control pin  643 , the second control pin  644 , the third control pin  645 , and the fourth control pin  646  respectively output a low level voltage signal, a high level voltage signal, a high voltage signal, and a low level voltage signal. Thus, the first FET Q 1  and the fourth FET Q 4  are switched off, and the second FET Q 2  and the third FET Q 3  are switched on. The first node A outputs a low level voltage signal, and the second node B outputs a high level voltage signal. The first rotating pin  651  receives the low level voltage signal, the second rotating pin  652  receives the high level voltage signal, and the motor  23  is rotated in the second direction. 
         [0021]    When the motor  23  is rotated in the first direction, the sash cord  30  is pulled to open the curtain  50 , and when the motor  23  is rotated in the second direction, the sash cord  30  is pulled to close the curtain  50 . 
         [0022]    The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of a wirelessly controllable curtain system and circuit. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.