Patent Application
20160206128
The subject matter herein generally relates to lighting and environmental control.
A curtain is generally used in a window to adjust room light. Generally, the curtain is opened or closed manually.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures.
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.
Several definitions that apply throughout this disclosure will now be presented.
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.
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.
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.
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.
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.
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.
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) Q1, a second EFT Q2, a third EFT Q3, and a fourth EFT Q4. 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 Q1, the second EFT Q2, the third EFT Q3, and the fourth EFT Q4 respectively. The drain electrode D of each of the first FET Q1 and the second FET Q2 is coupled to a direct current power supply. The source electrode S of each of the third FET Q3 and the fourth FET Q4 is grounded. The source electrode S of the first FET Q1 is coupled to the drain electrode D of the second FET Q2. The source electrode S of the third FET Q3 is coupled to the drain electrode D of the fourth FET Q4. A first node A is defined between the source electrode S of the first FET Q1 and the drain electrode D of the second FET Q2. The first node A is grounded via a capacitor C1 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 Q3 and the drain electrode D of the fourth FET Q4. The second node B is grounded via a capacitor C2 and coupled to a second rotating pin 652 of the motor circuit 65.
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 Q1 and the fourth FET Q4 are switched on, and the second FET Q2 and the third FET Q3 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.
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 Q1 and the fourth FET Q4 are switched off, and the second FET Q2 and the third FET Q3 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.
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.
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.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510020018.2 | Jan 2015 | CN | national |
