Automatic curtain control system

Abstract

The utility model discloses an automatic curtain control system which comprises a curtain body and a support used for hanging the curtain body, a motor is installed at one end of the support, an elastic band fixing part is arranged at one end of the support, a pulley is installed on a rotating shaft of the motor, a pull rope is wound on the pulley, and the end, extending out of the pulley, of the pull rope penetrates into the support to be connected with one end of an elastic band in the support. The other end of the elastic band is connected with an elastic band fixing part, a plurality of hanging rods which are sequentially arranged are connected below the elastic band, and the lower ends of the hanging rods are respectively provided with a curtain mounting part which is connected with the upper end of the curtain body; a control circuit board is further arranged on the upper portion of the support and comprises a microprocessor, a power module electrically connected with the microprocessor, a stepping motor driving circuit, a wireless communication module and a voice module. The intelligent curtain has various functions, can be opened and closed through wireless control or automatic control according to the condition of the surrounding environment, and improves the home environment. And secondly, the curtain opening and closing control structure is simple and convenient to install.

Description

Technical field:

[0001] The utility model relates to the technical field of automatic curtains, in particular to an automatic curtain control system. Background technology:

[0002] Automatic curtains are also called electric curtains. Automatic curtains are divided into fully automatic curtains and semi-automatic curtains. Fully automatic curtains are based on sunlight and temperature, and automatically open and close the curtains under the set light and temperature; semi-automatic curtains do not need to be operated by walking to the window to manually pull the curtains, but only need to be operated by a handheld remote control device, which can be a smartphone or a device similar to a TV remote control.

[0003] Most of the current electric curtains only realize the function of automatic opening and closing of curtains, and the function is relatively simple. Indoor and outdoor air quality has gradually become an important factor affecting the health of home life: on the one hand, people need to open windows and curtains for ventilation, exhaust harmful gases in the indoor air, and purify the indoor air. On the other hand, when encountering haze weather or rainy days, opening windows will bring bad effects, such as inhaling pollutants may damage health, so you need to close the windows; sometimes ultraviolet rays are too strong, which can easily cause damage to human skin, and the light intensity also has certain damage to the eyes, so you need to close the curtains. For modern people, the trend is to increase the degree of automation in life, such as automatically opening windows and curtains in the morning and automatically closing windows and curtains at night, which undoubtedly reduces the burden for people who have been tired all day. Utility model content:

[0004] The utility model aims to provide an automatic curtain control system to solve the deficiencies of the prior art.

[0005] The utility model is implemented by the following technical scheme: an automatic curtain control system, comprising a curtain body and a bracket for hanging the curtain body, a motor is installed at one end of the bracket, one end of the bracket is an elastic band fixing part, a pulley is installed on the motor shaft, a pull cord is wound around the pulley, one end of the pull cord extending from the pulley passes through the bracket and is connected to one end of the elastic band in the bracket, the other end of the elastic band is connected to the elastic band fixing part, a plurality of hanging rods arranged in sequence are connected below the elastic band, a curtain mounting part is respectively arranged at the lower ends of the plurality of hanging rods, and the curtain mounting part is connected to the upper end of the curtain body;

[0006] A control box is also provided on the upper part of the bracket, and a control circuit board is provided in the control box. The control circuit board includes a microprocessor and a power module electrically connected to the microprocessor, a stepper motor drive circuit, a wireless communication module, and a voice module. The microprocessor is also electrically connected to a PM sensor, a light sensor, a rain sensor, and a dust sensor provided on the window sill, and the stepper motor drive circuit is electrically connected to the motor.

[0007] Furthermore, the elastic band is made of elastic material, and multiple hanging rods are evenly fixed at corresponding positions on the elastic band. A guide groove is provided on the lower side of the bracket for passing through the multiple hanging rods and limiting the multiple hanging rods, and the curtain installation part is located at the lower part of the guide groove.

[0008] Furthermore, a winding groove is provided on the outer edge of the pulley.

[0009] Furthermore, the microprocessor is a STM32 series single-chip microcomputer.

[0010] Furthermore, the PM2.5 sensor model is PMS7003G7.

[0011] Furthermore, the power supply module is an AC-to-DC switching power supply.

[0012] Furthermore, the stepper motor driving circuit is a driving circuit based on an L298N stepper motor driving chip.

[0013] Furthermore, the wireless communication module is a 4G / 5G module and a WIFI module.

[0014] Advantages of the utility model:

[0015] The utility model detects indoor environmental conditions through PM2.5 sensors, light sensors, rain sensors, and dust sensors. When the PM2.5 near the indoor windowsill is high, the dust concentration is high, or rain is drifting in, the control box can automatically send a control signal to close the curtains to the stepper motor drive circuit to achieve curtain closing control. At the same time, the light sensor detects the indoor light intensity, and the user can wirelessly control the opening and closing of the curtains through a mobile phone according to their own light preferences. It has various functions and can improve the home environment by wirelessly controlling or automatically controlling the opening and closing of the curtains according to the surrounding environment. In addition, the curtain opening and closing control structure of the utility model is mainly based on the combination of a stepper motor, an elastic band, and a pull cord, which converts the forward and reverse motion of the stepper motor into the stretching motion of the elastic band, and then controls the extension of the hanging rod hung under the elastic band, and finally controls the curtain to open and close. It has a simple structure and is easy to install. Description of the drawings:

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1A schematic diagram of a curtain unfolding structure of an automatic curtain control system according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the curtain closing structure of an automatic curtain control system according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of a guide groove structure provided on the lower side of a bracket of an automatic curtain control system according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a motor connecting pulley of an automatic curtain control system according to an embodiment of the utility model;

[0021] Figure 5 This is a principle block diagram of an electric control system of an automatic curtain control system according to an embodiment of the utility model;

[0022] Figure 6 The present invention is a schematic circuit diagram of a stepper motor driving circuit of an automatic curtain control system according to an embodiment of the present invention. Specific implementation method:

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , 2 As shown in Figure 5, a curtain automatic control system includes a curtain body 1 and a bracket 10 for hanging the curtain body 1, a motor 11 is installed at one end of the bracket 10, one end of the bracket 10 is an elastic band fixing part 4, a pulley 2 is installed on the rotating shaft of the motor 11, a pull cord 5 is wound around the pulley 2, one end of the pull cord 5 extending from the pulley 2 passes through the bracket 10 and is connected to one end of the elastic band 3 in the bracket 10, the other end of the elastic band 3 is connected to the elastic band fixing part 4, a plurality of hanging rods 6 arranged in sequence are connected below the elastic band 3, a curtain mounting part 7 is respectively arranged at the lower ends of the plurality of hanging rods 6, and the curtain mounting part 7 is connected to the upper end of the curtain body 1; wherein, the elastic band 3 is made of elastic material, a plurality of hanging rods 6 are evenly fixedly installed at corresponding positions on the elastic band 3, the pull cord 5 is a non-retractable rope, and the curtain mounting part 7 is a curtain mounting clip or a mounting ring.

[0025] A control box 9 is also provided on the upper part of the bracket 10, and a control circuit board is provided in the control box 9. The control circuit board includes a microprocessor 91 and a power module 96 electrically connected to the microprocessor 91, a stepper motor drive circuit 97, a wireless communication module 98, and a voice module 99. The microprocessor 91 is also electrically connected to a PM2.5 sensor 92, a light sensor 93, a rain sensor 94, and a dust sensor 95 arranged on the window sill, and the stepper motor drive circuit 97 is electrically connected to the motor 11.

[0026] like Figure 3 As shown, a guide groove 101 for passing through and limiting the plurality of hanging rods 6 is provided at the lower side of the bracket 10 , and the curtain mounting portion 7 is located at the lower part of the guide groove 101 .

[0027] like Figure 4 As shown, a winding groove 21 is provided on the outer edge of the pulley 2. On the one hand, the pull rope 5 can be wound in the winding groove 21, and at the same time, the winding groove can limit the pull rope 5.

[0028] Microprocessor 91 is a STM32 series single-chip microcomputer. STM32 is a 32-bit microcontroller developed by ST based on the ARM Corte-M core. It is often used in the embedded field. It has powerful functions, excellent performance, rich on-chip resources, and low power consumption. It is a classic embedded microcontroller.

[0029] PM2.5 sensor 92 is model PMS7003G7, which is used to detect PM2.5 near the window. It is a particle sensor made based on the principle of light scattering, with the advantages of low cost, mature technology and high precision. Its minimum resolution is 0.3μm, in μg / m3, and it communicates with the microcontroller through a universal serial port. When the window is not closed, the dust sensor 95 is used to detect whether larger dust particles are floating in near the window. When these two indicators exceed the threshold, the curtains can be automatically controlled to cover the window.

[0030] The light sensor 93 is used to detect the indoor light intensity. The light intensity data is sent to the user's mobile phone terminal through the wireless communication module 98. The curtains are wirelessly controlled according to the light intensity preferred by the user, and the automatic control of the light intensity can also be set in advance.

[0031] The rain sensor 94 is a photoelectric raindrop sensor or a piezoelectric raindrop sensor, which is used to detect whether it is raining. If it is raining and the window is not closed, the rain sensor 94 detects rain on the window and can automatically control the curtains to cover the window to prevent rain from entering the room.

[0032] The power module 96 is an AC-to-DC switching power supply, which is used to convert the AC voltage of the mains into a DC voltage that can be used by the circuits on the control board.

[0033] like Figure 6As shown, the stepper motor driving circuit 97 is a driving circuit based on the L298N stepper motor driving chip, which can control the forward and reverse rotation of the motor 11, and then control the extension and retraction of the inner pull line of the bracket 10 and the elastic band 3 by controlling the forward and reverse rotation of the pulley 2, and finally control the opening and closing of the curtain.

[0034] The wireless communication module 98 is a 4G / 5G module and a WIFI module, which is used to wirelessly send environmental sensing signals related to the smart curtains to the user's mobile phone to realize environmental monitoring. The user can also send the signal for controlling the opening and closing of the curtains to the wireless communication module 98 through the mobile phone, and then the microprocessor 91 controls the opening and closing of the curtains according to the control signal.

[0035] The working principle of the utility model is:

[0036] PM2.5 sensor 92, light sensor 93, rain sensor 94, and dust sensor 95 detect indoor environmental conditions. When PM2.5 near the indoor windowsill is high, dust concentration is high, or rain is drifting in, the control box can automatically send a control signal to close the curtains to the stepper motor drive circuit to achieve curtain closing control. At the same time, the light sensor detects the indoor light intensity, and the user can wirelessly control the opening and closing of the curtains through the mobile phone according to his or her own light preferences.

[0037] like Figure 1 As shown in the figure, the curtains are open, and the light from the window shines into the room. Figure 2 As shown, the curtains are partially open, and the light from the window partially shines into the room.

[0038] If you need to Figure 1 The status becomes Figure 2 State (i.e. partially closing the curtain), the stepper motor rotates clockwise with the position in the figure as a reference, the pull cord 5 in the bracket 10 exerts a rightward pulling force on the contracted elastic band 3, the elastic band 3 is continuously stretched, and the hanging rod 6 at the bottom of the elastic band 3 is continuously spread out, and then the curtain is continuously unfolded. The stepper motor continues to rotate clockwise until the pull cord 5 is completely wrapped around the pulley 2. At this time, the bracket 10 is completely filled with the elastic band 3, and the hanging rod 6 is completely spread out, so that the curtain is closed. When the curtain needs to be opened, it is only necessary to control the stepper motor to rotate counterclockwise, and the principle process is the opposite. Since the elastic band is made of elastic material (such as rubber), similar to the material of the inner tube of a wheel, and the hanging rod 6 is evenly fixedly installed at the corresponding position on the elastic band, when the elastic band contracts, the hanging rod 6 also contracts with the position, and when the elastic band extends, the hanging rod 6 also expands with the position.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A curtain automatic control system, characterized in that: The invention comprises a curtain body (1) and a bracket (10) for hanging the curtain body (1), a motor (11) being installed at one end of the bracket (10), an elastic band fixing part (4) being installed at the other end of the bracket (10), a pulley (2) being installed on the rotating shaft of the motor (11), a pull cord (5) being wound around the pulley (2), one end of the pull cord (5) extending from the pulley (2) passing through the bracket (10) and being connected to one end of the elastic band (3) in the bracket (10), the other end of the elastic band (3) being connected to the elastic band fixing part (4), a plurality of hanging rods (6) arranged in sequence being connected below the elastic band (3), a curtain mounting part (7) being respectively arranged at the lower ends of the plurality of hanging rods (6), and the curtain mounting part (7) being connected to the upper end of the curtain body (1); A control box (9) is also arranged on the upper part of the bracket (10), and a control circuit board is arranged in the control box (9). The control circuit board comprises a microprocessor (91) and a power module (96) electrically connected to the microprocessor (91), a stepper motor drive circuit (97), a wireless communication module (98), and a voice module (99). The microprocessor (91) is also electrically connected to a PM2.5 sensor (92), a light sensor (93), a rain sensor (94), and a dust sensor (95) arranged on the window edge, and the stepper motor drive circuit (97) is electrically connected to the motor (11).

2. The automatic curtain control system according to claim 1, characterized in that: The elastic band (3) is made of elastic material, and a plurality of hanging rods (6) are evenly and fixedly installed at corresponding positions on the elastic band (3). A guide groove (101) for passing through the plurality of hanging rods (6) and limiting the plurality of hanging rods (6) is provided on the lower side of the bracket (10), and the curtain installation part (7) is located at the lower part of the guide groove (101).

3. The automatic curtain control system according to claim 1, characterized in that: A winding groove (21) is provided on the outer edge of the pulley (2).

4. The automatic curtain control system according to claim 1, characterized in that: The microprocessor (91) is a STM32 series single chip microcomputer.

5. The automatic curtain control system according to claim 1, characterized in that: The PM2.5 sensor (92) is of model PMS7003G7.

6. The automatic curtain control system according to claim 1, characterized in that: The power supply module (96) is an AC-to-DC switching power supply.

7. The automatic curtain control system according to claim 1, characterized in that: The stepper motor driving circuit (97) is a driving circuit based on an L298N stepper motor driving chip.

8. The automatic curtain control system according to claim 1, characterized in that: The wireless communication module (98) is a 4G / 5G module and a WIFI module.

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