Remote air purifier control circuit and control system

Abstract

The utility model discloses a remote air purifier control circuit and a control system. The remote air purifier control circuit comprises a main control module, a power supply module, a wireless receiving module, a WIFI module, a dust sensing module, a touch screen control module, a fan driving module and a key module, the power supply module is electrically connected with the main control module, the wireless receiving module, the WIFI module, the dust sensing module, the touch screen control module, the fan driving module and the key module respectively; the main control module is electrically connected with the wireless receiving module, the WIFI module, the dust sensing module, the touch screen control module, the fan driving module and the key module. According to the utility model, remote Internet of Things control and wireless remote control of the air purifier can be realized, the operation is convenient, and the user experience is high.

Description

Technical Field

[0001] The utility model relates to the technical field of air purifiers, and in particular to a remote air purifier control circuit and control system. Background Art

[0002] With the development of society, the air quality is getting worse and worse. In order to improve the quality of life, in daily life, people usually choose to use air purifiers to purify the air around them.

[0003] A household air purifier is connected to a power source, which uses electricity to drive the fan inside the air purifier, draws air into the machine, and then purifies the air through filtering or sterilization processes, and finally discharges it from the exhaust port.

[0004] As people's environmental awareness increases, the demand for air purifiers is also increasing, but the current air purifiers cannot adapt well to the needs of the space environment. When using an air purifier, since the purified air cannot be directly breathed by the user, it needs to be dispersed in the air for a certain period of time, so the air purifier needs to be turned on for a period of time in advance. After the purified air and ordinary air are mixed, the user can breathe the purified air.

[0005] However, in the prior art, air purifiers have a single function, and usually use traditional function buttons to control the on / off of air purifiers. Therefore, when people return home, they need to wait for a while before they can breathe the purified air, which reduces the user experience. Therefore, inventing a remote air purifier control circuit and control system is an urgent problem to be solved by technicians in this field. Utility Model Content

[0006] The purpose of this application is to provide a remote air purifier control circuit and control system. In this solution, the main control module communicates bidirectionally with the WIFI module through a communication protocol to achieve the purpose of Internet of Things control; the touch screen control module is used to form a human-computer interaction operation interface to display PM2.5 values, fan speed and air quality status, or to set wind speed, timing, network distribution, and sleep functions; the wireless receiving module is used to cooperate with the remote control to realize wireless remote control of the air purifier.

[0007] In order to solve the above technical problems, the present application provides a remote air purifier control circuit, including a main control module, a power module, a wireless receiving module, a WIFI module, a dust sensor module, a touch screen control module, a fan drive module and a button module;

[0008] The power supply module is electrically connected to the main control module, the wireless receiving module, the WIFI module, the dust sensor module, the fan drive module and the button module respectively;

[0009] The main control module is electrically connected to the wireless receiving module, the WIFI module, the dust sensor module, the touch screen control module, the fan driving module and the button module respectively.

[0010] Preferably, the remote air purifier control circuit further includes a buzzer module;

[0011] The buzzer module is electrically connected to the main control module and the power module respectively.

[0012] Preferably, the WIFI module includes a WIFI unit, a transmitting switch control unit and a receiving switch control unit;

[0013] The WIFI unit is electrically connected to the power module, the transmitting switch control unit is electrically connected to the main control module, the WIFI unit and the power module respectively, and the receiving switch control unit is electrically connected to the main control module, the WIFI unit and the power module respectively.

[0014] Preferably, the dust sensing module comprises a switch sensing unit, a connecting unit and a dust sensor;

[0015] The switch sensing unit is electrically connected to the power module, the main control module and the connecting unit respectively, and the connecting unit is electrically connected to the dust sensor.

[0016] Preferably, the wireless receiving module includes a wireless receiving unit and a matching unit;

[0017] The matching unit is electrically connected to the power module and the wireless receiving unit respectively, and the wireless receiving unit is electrically connected to the main control module.

[0018] Preferably, the touch screen control module includes a touch spring unit and an LED display unit;

[0019] The touch spring unit is electrically connected to the main control module, and the LED display unit is electrically connected to the main control module.

[0020] Preferably, the power module includes a step-down conversion unit and a voltage stabilization unit;

[0021] The step-down conversion unit is electrically connected to the main control module, the wireless receiving module, the dust sensor module and the fan driving module respectively, and the voltage stabilizing unit is electrically connected to the WIFI module and the key module respectively.

[0022] Preferably, the transmitting switch control unit comprises a first transistor, a first resistor and a second resistor;

[0023] The first end of the first resistor is electrically connected to the step-down conversion unit, the second end of the first resistor is electrically connected to the base of the first transistor, the first end of the second resistor is electrically connected to the voltage stabilizing unit, the second end of the second resistor is electrically connected to the WIFI unit and the collector of the first transistor respectively, and the emitter of the first transistor is electrically connected to the main control module.

[0024] Preferably, the switch sensing unit comprises a MOS tube and a third resistor;

[0025] The gate of the MOS tube is electrically connected to the first end of the third resistor and the main control module respectively, the drain of the MOS tube is electrically connected to the buck conversion unit, and the source of the MOS tube is electrically connected to the connection unit.

[0026] In order to solve the above technical problems, the present application also provides a remote air purifier control system, including the remote air purifier control circuit.

[0027] A remote air purifier control circuit and control system of the utility model have the following beneficial effects. A remote air purifier control circuit disclosed in the utility model includes a main control module, a power module, a wireless receiving module, a WIFI module, a dust sensor module, a touch screen control module and a key module; the power module is electrically connected to the main control module, the wireless receiving module, the WIFI module, the dust sensor module and the touch screen control module respectively; the main control module is electrically connected to the wireless receiving module, the WIFI module, the dust sensor module and the touch screen control module respectively. The main control module communicates bidirectionally with the WIFI module through a communication protocol to achieve the purpose of IoT control; the touch screen control module is used to form a human-computer interaction operation interface, which is used to display PM2.5 values, fan speed and air quality status, or to set wind speed, timing, network distribution, and sleep functions; the wireless receiving module is used to cooperate with the remote control to realize wireless remote control of the air purifier. Therefore, the utility model can realize remote IoT control and wireless remote control of the air purifier, which is convenient to operate and has a high user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. 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 creative work:

[0029] Figure 1 This is a principle block diagram of a remote air purifier control circuit of a preferred embodiment of the utility model;

[0030] Figure 2 It is a circuit diagram of a switch control module of a remote air purifier control circuit in another preferred embodiment of the utility model;

[0031] Figure 3 This is a circuit schematic diagram of a WIFI module of a remote air purifier control circuit in a preferred embodiment of the utility model;

[0032] Figure 4 This is a circuit schematic diagram of a dust sensor module of a remote air purifier control circuit in a preferred embodiment of the utility model;

[0033] Figure 5 It is a circuit schematic diagram of a wireless receiving module of a remote air purifier control circuit of a preferred embodiment of the utility model;

[0034] Figure 6 This is a circuit schematic diagram of a touch spring unit of a remote air purifier control circuit in a preferred embodiment of the utility model;

[0035] Figure 7 The utility model is a circuit schematic diagram of an LED display unit of a remote air purifier control circuit according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0036] The core of this application is to provide a remote air purifier control circuit and control system. In this solution, the main control module communicates bidirectionally with the WIFI module through a communication protocol to achieve the purpose of Internet of Things control; the touch screen control module is used to form a human-computer interaction operation interface to display PM2.5 values, fan speed and air quality status, or to set wind speed, timing, network distribution, and sleep functions; the wireless receiving module is used to cooperate with the remote control to realize wireless remote control of the air purifier.

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] See also Figure 1 , Figure 1 A principle block diagram of a remote air purifier control circuit provided in the present application, including a main control module 1, a power module 2, a wireless receiving module 3, a WIFI module 4, a dust sensor module 5, a touch screen control module 6, a fan drive module 7 and a button module 8;

[0039] The power module 2 is electrically connected to the main control module 1, the wireless receiving module 3, the WIFI module 4, the dust sensor module 5, the fan drive module 7 and the button module 8 respectively;

[0040] The main control module 1 is electrically connected to the wireless receiving module 3 , the WIFI module 4 , the dust sensor module 5 , the touch screen control module 6 , the fan driving module 7 and the button module 8 respectively.

[0041] In the prior art, air purifiers have a single function, and usually use traditional function buttons to control the on / off of the air purifier. Therefore, when people return home, they need to wait for a while before they can breathe the purified air, which reduces the user experience.

[0042] In response to the above shortcomings, in this application, the remote Internet of Things control and wireless remote control of the air purifier are realized through the cooperation of the main control module 1, the power module 2, the wireless receiving module 3, the WIFI module 4, the dust sensor module 5, the touch screen control module 6, the fan drive module 7 and the button module 8, which is convenient to operate.

[0043] Specifically, in the present embodiment, the main control module 1 is configured as an MCU (Microcontroller Unit, also known as a single chip microcomputer), which appropriately reduces the frequency and specifications of the central processing unit (CPU), and integrates peripheral interfaces such as memory, timer, USB, A / D conversion, UART, PLC, DMA, and even LCD drive circuits on a single chip to form a chip-level computer, which performs different combination controls for different application scenarios. In another embodiment, the main control module 1 can also be implemented by a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), a SOC (System On Chip), an ARM (Acorn RISC Machine), etc., which are not specifically limited here.

[0044] Specifically, in this embodiment, the power supply module 2 is used to provide a rated voltage output, and the main control module 1 is used to realize the control of the wireless receiving module 3, the WIFI module 4, the dust sensor module 5, the touch screen control module 6 and the fan drive module 7; the wireless receiving module 3 cooperates with the remote control to realize the wireless remote control of the air purifier; the fan drive module 7 is used to drive the fan to work; the main control module 1 communicates bidirectionally with the WIFI module 4 through a communication protocol to achieve the purpose of Internet of Things control; the dust sensor module 5 is used to detect the mass concentration of dust particles in the air; the touch screen control module 6 is used to form a human-computer interaction operation interface, which is used to display the PM2.5 value, fan speed and air quality status, or to set the wind speed, timing, network distribution, and sleep functions; after the main control module 1 detects the information of the keypad in the key module 8, it completes the switch and speed regulation of the air purifier fan, the switch of the dust sensor module 5, etc. through internal processing.

[0045] Specifically, in this embodiment, the WIFI module 4 can realize wireless data transmission control between the air purifier and the mobile terminal. The main control module 1 can transmit the detected working status and working parameters of the air purifier to the APP end on the mobile terminal through the WIFI module 4; at the same time, the APP end can realize remote control of the air purifier, for example, the speed setting of the fan, the working mode setting, the switch of the PM2.5 module, etc., which are not specifically limited here.

[0046] In summary, the present application provides a remote air purifier control circuit, which includes a main control module 1, a power module 2, a wireless receiving module 3, a WIFI module 4, a dust sensor module 5, a touch screen control module 6, a fan drive module 7 and a key module 8; the power module 2 is electrically connected to the main control module 1, the wireless receiving module 3, the WIFI module 4, the dust sensor module 5, the touch screen control module 6, the fan drive module 7 and the key module 8 respectively; the main control module 1 is electrically connected to the wireless receiving module 3, the WIFI module 4, the dust sensor module 5, the touch screen control module 6, the fan drive module 7 and the key module 8 respectively. Therefore, the utility model can realize remote Internet of Things control and wireless remote control of the air purifier, which is convenient to operate and has a high user experience.

[0047] Based on the above embodiments:

[0048] Please refer to Figure 2 , Figure 2 A principle block diagram of a remote air purifier control circuit provided in this application.

[0049] As a preferred embodiment, a remote air purifier control circuit further includes a buzzer module 8;

[0050] The buzzer module 8 is electrically connected to the main control module 1 and the power module 2 respectively.

[0051] Specifically, in this embodiment, the buzzer module 8 is used to implement debugging alarm control of the air purifier before leaving the factory, or to implement alarm output when the mass concentration of dust particles in the air is too high, which is not specifically limited here.

[0052] Please refer to Figure 3 , Figure 3 A circuit diagram of a WIFI module provided in this application.

[0053] As a preferred embodiment, the WIFI module 4 includes a WIFI unit 41, a transmitting switch control unit 42 and a receiving switch control unit 43;

[0054] The WIFI unit 41 is electrically connected to the power module 2, the transmitting switch control unit 42 is electrically connected to the main control module 1, the WIFI unit 41 and the power module 2 respectively, and the receiving switch control unit 43 is electrically connected to the main control module 1, the WIFI unit 41 and the power module 2 respectively.

[0055] Specifically, the transmitting switch control unit 42 is used to implement the switch enable control of the data transmission pin between the main control module 1 and the WIFI unit 41, and the receiving switch control unit 43 is used to implement the switch enable control of the data receiving pin between the main control module 1 and the WIFI unit 41. In this embodiment, the model of the WIFI unit 41 is not specifically limited.

[0056] As a preferred embodiment, the emission switch control unit 42 includes a first transistor Q1, a first resistor R7 and a second resistor R12;

[0057] The first end of the first resistor R7 is electrically connected to the step-down conversion unit, the second end of the first resistor R7 is electrically connected to the base of the first transistor Q1, the first end of the second resistor R12 is electrically connected to the voltage stabilizing unit, the second end of the second resistor R12 is electrically connected to the WIFI unit 41 and the collector of the first transistor Q1 respectively, and the emitter of the first transistor Q1 is electrically connected to the main control module 1.

[0058] Specifically, in this embodiment, the main control module 1 is connected to the WIFI unit 41 through the transistor Q1 and the transistor Q3, controls the on and off of the transistor Q1 and the transistor Q3, and communicates with the WIFI unit 41 bidirectionally to achieve the purpose of IoT control.

[0059] Please refer to Figure 4 , Figure 4 A circuit schematic diagram of a dust sensor module provided in this application.

[0060] As a preferred embodiment, the dust sensing module 5 includes a switch sensing unit 51, a connecting unit 52 and a dust sensor 53;

[0061] The switch sensing unit 51 is electrically connected to the power module 2 , the main control module 1 and the connecting unit 52 , respectively, and the connecting unit 52 is electrically connected to the dust sensor 53 .

[0062] As a preferred embodiment, the switch sensing unit 51 includes a MOS tube and a third resistor;

[0063] The gate of the MOS tube is electrically connected to the first end of the third resistor and the main control module 1 respectively, the drain of the MOS tube is electrically connected to the step-down conversion unit, and the source of the MOS tube is electrically connected to the connection unit 52 .

[0064] Specifically, in this embodiment, the main control module 1 realizes on-off control of the power supply to the dust sensor 53 through the switch sensor unit 51 , so as to control the operation of the dust sensor 53 .

[0065] Please refer to Figure 5 , Figure 5 A circuit schematic diagram of a wireless receiving module provided in this application.

[0066] As a preferred embodiment, the wireless receiving module 3 includes a wireless receiving unit 31 and a matching unit 32;

[0067] The matching unit 32 is electrically connected to the power module 2 and the wireless receiving unit 31 respectively, and the wireless receiving unit 31 is electrically connected to the main control module 1 .

[0068] Specifically, the matching unit 32 is used to achieve impedance matching with the transmitting source, reduce reflection loss of the signal, and enhance the stability of wireless radio frequency signal transmission.

[0069] Please refer to Figure 6 , Figure 6 A circuit schematic diagram of a touch spring unit provided in this application.

[0070] Please refer to Figure 7 , Figure 7 A circuit schematic diagram of an LED display unit provided in this application.

[0071] As a preferred embodiment, the touch screen control module 6 includes a touch spring unit 61 and an LED display unit 62;

[0072] The touch spring unit 61 is electrically connected to the main control module 1 , and the LED display unit 62 is electrically connected to the main control module 1 .

[0073] Specifically, in this embodiment, the eight touch springs in the touch spring unit 61 and the 42 LEDs in the LED display unit 62 constitute a human-computer interaction interface, which is used to display the PM2.5 value, fan speed and air quality status, etc., or to set wind speed, timing, network distribution, sleep and other functions by touching the buttons.

[0074] As a preferred embodiment, the power module 2 includes a step-down conversion unit and a voltage stabilization unit;

[0075] The step-down conversion unit is electrically connected to the main control module 1 , the wireless receiving module 3 , the dust sensor module 5 and the fan driving module 7 , respectively, and the voltage stabilizing unit is electrically connected to the WIFI module 4 and the key module 8 , respectively.

[0076] Specifically, in this embodiment, a 24V DC voltage is connected through DC1, and then the air purifier device is powered through the protection switch CN1; the 24V voltage is used to power the driving fan, and then a 5V voltage is output through the buck converter U1 in the buck conversion unit to supply power to the main control module 1, the wireless receiving module 3, and the dust sensor module 5; the buck converter U1 outputs a 3.3V voltage through the voltage stabilizing unit to power the WIFI module 4 and the button module 8.

[0077] The present application also provides a remote air purifier control system, including the remote air purifier control circuit.

[0078] For an introduction to a remote air purifier control circuit provided in the present application, please refer to the above-mentioned embodiment, and the present application will not go into details here.

[0079] It should be noted that, in this specification, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0080] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A remote air purifier control circuit, characterized in that: Including main control module, power module, wireless receiving module, WIFI module, dust sensor module, touch screen control module, fan drive module and button module; The power module is electrically connected to the main control module, the wireless receiving module, the WIFI module, the dust sensor module, the fan drive module and the button module respectively; The main control module is electrically connected to the wireless receiving module, the WIFI module, the dust sensor module, the touch screen control module, the fan driving module and the button module respectively.

2. A remote air purifier control circuit according to claim 1, characterized in that: The remote air purifier control circuit further includes a buzzer module; The buzzer module is electrically connected to the main control module and the power module respectively.

3. A remote air purifier control circuit according to claim 1, characterized in that: The WIFI module includes a WIFI unit, a transmitting switch control unit and a receiving switch control unit; The WIFI unit is electrically connected to the power module, the transmitting switch control unit is electrically connected to the main control module, the WIFI unit and the power module respectively, and the receiving switch control unit is electrically connected to the main control module, the WIFI unit and the power module respectively.

4. A remote air purifier control circuit according to claim 3, characterized in that: The dust sensing module includes a switch sensing unit, a connection unit and a dust sensor; The switch sensing unit is electrically connected to the power module, the main control module and the connecting unit respectively, and the connecting unit is electrically connected to the dust sensor.

5. A remote air purifier control circuit according to claim 1, characterized in that: The wireless receiving module includes a wireless receiving unit and a matching unit; The matching unit is electrically connected to the power module and the wireless receiving unit respectively, and the wireless receiving unit is electrically connected to the main control module.

6. A remote air purifier control circuit according to claim 1, characterized in that: The touch screen control module includes a touch spring unit and an LED display unit; The touch spring unit is electrically connected to the main control module, and the LED display unit is electrically connected to the main control module.

7. A remote air purifier control circuit according to claim 4, characterized in that: The power module includes a step-down conversion unit and a voltage stabilization unit; The step-down conversion unit is electrically connected to the main control module, the wireless receiving module, the dust sensor module and the fan driving module respectively, and the voltage stabilizing unit is electrically connected to the WIFI module and the key module respectively.

8. A remote air purifier control circuit according to claim 7, characterized in that: The transmitting switch control unit includes a first transistor, a first resistor and a second resistor; The first end of the first resistor is electrically connected to the step-down conversion unit, the second end of the first resistor is electrically connected to the base of the first transistor, the first end of the second resistor is electrically connected to the voltage stabilizing unit, the second end of the second resistor is electrically connected to the WIFI unit and the collector of the first transistor respectively, and the emitter of the first transistor is electrically connected to the main control module.

9. A remote air purifier control circuit according to claim 7, characterized in that: The switch sensing unit includes a MOS tube and a third resistor; The gate of the MOS tube is electrically connected to the first end of the third resistor and the main control module respectively, the drain of the MOS tube is electrically connected to the buck conversion unit, and the source of the MOS tube is electrically connected to the connection unit.

10. A remote air purifier control system, characterized in that: A remote air purifier control circuit comprising any one of claims 1 to 9.

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