A fan circuit based on voice control

Abstract

The utility model relates to a fan technology especially a fan circuit based on voice control, include: power supply VCC, main control circuit, the main control circuit includes STC89C52 chip and the peripheral circuit composition of STC89C52 chip, the 40 pin of STC89C52 chip is connected with power supply VCC electrically, voice recognition module, the output of voice recognition module is connected with the 10 pin, 11 pin electrically of STC89C52 chip respectively, fan drive circuit, the fan drive circuit includes resistance R1, triode Q1, fan motor, one end of resistance R1 is connected with the 5 pin electrically of STC89C52 chip, the other end of resistance R1 is connected with the base electrically of triode Q1, the collector of triode Q1 is connected with power supply VCC electrically, the emitter of triode Q1 is connected with one end electrically of fan motor, the other end of fan motor is grounded.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a fan circuit based on voice control. Background Technology

[0002] A fan is a common electrical appliance that uses a motor to drive the fan blades to rotate, generating airflow to achieve purposes such as heat dissipation, ventilation, and cooling.

[0003] However, in the traditional fan control field, users mainly rely on manual buttons or remote controls to operate the fan. Manual button operation requires the user to directly touch the fan, which is extremely inconvenient if the fan is located high or in a hard-to-reach place.

[0004] While remote controls increase the operating distance to some extent, they still don't provide convenient fan control when users are holding objects, are far away, or have lost the remote. With the rise of smart voice technology, market demand for voice-controlled fans is growing.

[0005] However, existing voice-controlled fan circuits often suffer from complex structures and high costs. The large number of complex chips and circuit layouts not only increase the difficulty of production but also drive up product prices. Utility Model Content

[0006] This invention provides a voice-controlled fan circuit to solve the above-mentioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A voice-controlled fan circuit includes:

[0009] Power supply VCC;

[0010] The main control circuit comprises an STC89C52 chip and peripheral circuitry of the STC89C52 chip, wherein pin 40 of the STC89C52 chip is electrically connected to the power supply VCC.

[0011] The voice recognition module has its output terminals electrically connected to pins 10 and 11 of the STC89C52 chip, respectively.

[0012] A fan drive circuit includes a resistor R1, a transistor Q1, and a fan motor. One end of the resistor R1 is electrically connected to pin 5 of the STC89C52 chip, the other end of the resistor R1 is electrically connected to the base of the transistor Q1, the collector of the transistor Q1 is electrically connected to the power supply VCC, the emitter of the transistor Q1 is electrically connected to one end of the fan motor, and the other end of the fan motor is grounded.

[0013] As a preferred embodiment of this utility model, the voice-controlled fan circuit further includes a fan oscillation circuit, which includes a resistor R2, a resistor R3, a diode D1, a transistor Q2, and an oscillation motor. One end of the resistor R2 and one end of the resistor R3 are electrically connected to pin 6 of the STC89C52 chip, the other end of the resistor R2 is electrically connected to the base of the transistor Q2, the other end of the resistor R3 is electrically connected to the collector of the transistor Q2, and the diode D1 is connected in parallel with the oscillation motor, with the parallel connection point electrically connected to the collector of the transistor Q2.

[0014] As a preferred embodiment of this utility model, the voice-controlled fan circuit further includes a control switch circuit, which includes: button K2, button K3, and button K4. One end of button K2, one end of button K3, and one end of button K4 are all grounded. The other end of button K2 is electrically connected to pin 15 of the STC89C52 chip. The other end of button K3 is electrically connected to pin 16 of the STC89C52 chip. The other end of button K4 is electrically connected to pin 17 of the STC89C52 chip.

[0015] As a preferred embodiment of this utility model, the voice-controlled fan circuit further includes an indicator circuit, which includes: resistor R4, transistor Q3, resistor R5, resistor R6, resistor R7, diode D2, diode D3, and diode D4; one end of resistor R4 is electrically connected to pin 4 of the STC89C52 chip, and the other end of resistor R4 is electrically connected to the base of transistor Q3. The collector of transistor Q3 is electrically connected to one end of resistor R5, one end of resistor R6, and one end of resistor R7, respectively; the other ends of resistor R5, resistor R6, and resistor R7 are electrically connected to the cathodes of diode D2, diode D3, and diode D4, respectively, and the anodes of diode D2, diode D3, and diode D4 are all connected to the power supply VCC.

[0016] As a preferred embodiment of this utility model, the voice-controlled fan circuit further includes a display circuit, which is configured as a display screen LCD. The corresponding input terminal of the display screen LCD is electrically connected to the corresponding output terminal of the STC89C52 chip.

[0017] As a preferred embodiment of this utility model, the voice-controlled fan circuit further includes a reset circuit, which includes a resistor R8, a capacitor C1, and a button K1; one end of the resistor R8 is grounded, and the other end of the resistor R8 is electrically connected to one end of the capacitor C1, one end of the button K1, and pin 9 of the STC89C52 chip; the other end of the capacitor C1 and the other end of the button K1 are both electrically connected to the power supply VCC.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) In this utility model, when the voice module inputs a voice fan motor control signal, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognizing the voice signal. The control signal is then used to control the fan motor to work or stop via resistor R1 and transistor Q1. In addition, when the voice module inputs a voice fan oscillation control signal, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognizing the voice signal. The control signal is then used to control the oscillation motor to work or stop via resistor R2 and transistor Q2, thereby causing the fan to oscillate or stop.

[0020] (2) In this utility model, when the voice control module is not used, the control signal can be input through the buttons K2, K3 and K4, which are recognized and output by the TC89C52 chip, and the speed of the fan motor is controlled by the resistor R1 and the transistor Q1; in addition, the working status of the fan can be viewed through the LCD display.

[0021] Therefore, by collecting humidity data, the heating power of the fan DC motor and PCT heating element can be controlled, thereby reducing energy consumption and improving air comfort. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the circuit working principle of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] For an example, please refer to... Figure 1 This utility model provides a technical solution:

[0025] A voice-controlled fan circuit includes:

[0026] Power supply VCC;

[0027] The main control circuit comprises an STC89C52 chip and peripheral circuitry of the STC89C52 chip, wherein pin 40 of the STC89C52 chip is electrically connected to the power supply VCC.

[0028] The voice recognition module has its output terminals electrically connected to pins 10 and 11 of the STC89C52 chip, respectively.

[0029] A fan drive circuit includes a resistor R1, a transistor Q1, and a fan motor. One end of the resistor R1 is electrically connected to pin 5 of the STC89C52 chip, the other end of the resistor R1 is electrically connected to the base of the transistor Q1, the collector of the transistor Q1 is electrically connected to the power supply VCC, the emitter of the transistor Q1 is electrically connected to one end of the fan motor, and the other end of the fan motor is grounded.

[0030] When the voice module inputs a voice control signal for the fan motor, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognition. This control signal is then used to control the fan motor to work or stop via resistor R1 and transistor Q1, thus allowing the fan to be controlled to work or stop via the voice module.

[0031] Reference Figure 1 In this embodiment, the voice-controlled fan circuit further includes a fan oscillation circuit, which includes resistor R2, resistor R3, diode D1, transistor Q2, and oscillation motor. One end of resistor R2 and one end of resistor R3 are electrically connected to pin 6 of the STC89C52 chip, the other end of resistor R2 is electrically connected to the base of transistor Q2, the other end of resistor R3 is electrically connected to the collector of transistor Q2, and diode D1 is connected in parallel with the oscillation motor, with the parallel connection point electrically connected to the collector of transistor Q2.

[0032] When the voice module inputs a voice control signal for the fan oscillation, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognition. This signal is then used to control the oscillation motor to work or stop via resistor R2 and transistor Q2, thereby causing the fan to oscillate or stop.

[0033] Reference Figure 1 In this embodiment, the voice-controlled fan circuit further includes a control switch circuit, which includes: button K2, button K3, and button K4. One end of button K2, one end of button K3, and one end of button K4 are all grounded. The other end of button K2 is electrically connected to pin 15 of the STC89C52 chip. The other end of button K3 is electrically connected to pin 16 of the STC89C52 chip. The other end of button K4 is electrically connected to pin 17 of the STC89C52 chip.

[0034] The system inputs control signals via buttons K2, K3, and K4, which are then recognized and output by the TC89C52 chip. The output control signals are then controlled by resistor R1 and transistor Q1. Additionally, the operating status of the fan can be viewed on the LCD display.

[0035] Reference Figure 1 In this embodiment, the voice-controlled fan circuit further includes an indicator circuit, which includes: resistor R4, transistor Q3, resistor R5, resistor R6, resistor R7, diode D2, diode D3, and diode D4. One end of resistor R4 is electrically connected to pin 4 of the STC89C52 chip, and the other end of resistor R4 is electrically connected to the base of transistor Q3. The collector of transistor Q3 is electrically connected to one end of resistor R5, one end of resistor R6, and one end of resistor R7, respectively. The other ends of resistors R5, R6, and R7 are electrically connected to the cathodes of diodes D2, D3, and D4, respectively. The anodes of diodes D2, D3, and D4 are all connected to the power supply VCC. The indicator circuit serves as a fan operation indicator.

[0036] Reference Figure 1 In this embodiment, the voice-controlled fan circuit further includes a display circuit, which is configured as a display screen LCD. The corresponding input terminal of the display screen LCD is electrically connected to the corresponding output terminal of the STC89C52 chip.

[0037] Reference Figure 1 In this embodiment, the voice-controlled fan circuit further includes a reset circuit, which includes a resistor R8, a capacitor C1, and a button K1. One end of the resistor R8 is grounded, and the other end of the resistor R8 is electrically connected to one end of the capacitor C1, one end of the button K1, and pin 9 of the STC89C52 chip. The other ends of the capacitor C1 and the other ends of the button K1 are both electrically connected to the power supply VCC.

[0038] When the voice-controlled fan circuit needs to be reset, it can be reset to its initial state by pressing button K1.

[0039] The working principle of this utility model is as follows:

[0040] 1. When the voice module inputs a voice control signal for the fan motor, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognizing the voice signal. The control signal is then used to control the fan motor to work or stop via resistor R1 and transistor Q1.

[0041] 2. Additionally, when the voice module inputs a voice control signal for the fan oscillation, the TC89C52 chip recognizes the voice signal and outputs a control signal after recognition. This signal, through resistor R2 and transistor Q2, controls the oscillation motor to work or stop, thereby causing the fan to oscillate or stop.

[0042] 3. When the voice control module is not in use, control signals can be input via buttons K2, K3, and K4. The TC89C52 chip recognizes and outputs control signals, which are then controlled by resistor R1 and transistor Q1 to control the speed of the fan motor.

[0043] 4. Additionally, the fan's operating status can be viewed via the LCD display.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A voice control based fan circuit, characterized by: include: Power supply VCC; The main control circuit comprises an STC89C52 chip and peripheral circuitry of the STC89C52 chip, wherein pin 40 of the STC89C52 chip is electrically connected to the power supply VCC. The voice recognition module has its output terminals electrically connected to pins 10 and 11 of the STC89C52 chip, respectively. A fan drive circuit includes a resistor R1, a transistor Q1, and a fan motor. One end of the resistor R1 is electrically connected to pin 5 of the STC89C52 chip, the other end of the resistor R1 is electrically connected to the base of the transistor Q1, the collector of the transistor Q1 is electrically connected to the power supply VCC, the emitter of the transistor Q1 is electrically connected to one end of the fan motor, and the other end of the fan motor is grounded.

2. The voice control based fan circuit according to claim 1, wherein: The voice-controlled fan circuit also includes a fan oscillation circuit, which includes resistor R2, resistor R3, diode D1, transistor Q2, and oscillation motor. One end of resistor R2 and one end of resistor R3 are electrically connected to pin 6 of the STC89C52 chip, the other end of resistor R2 is electrically connected to the base of transistor Q2, the other end of resistor R3 is electrically connected to the collector of transistor Q2, and diode D1 is connected in parallel with the oscillation motor, with the parallel connection point electrically connected to the collector of transistor Q2.

3. The voice control based fan circuit according to claim 1, wherein: The voice-controlled fan circuit also includes a control switch circuit, which includes buttons K2, K3, and K4. One end of button K2, one end of button K3, and one end of button K4 are all grounded. The other end of button K2 is electrically connected to pin 15 of the STC89C52 chip. The other end of button K3 is electrically connected to pin 16 of the STC89C52 chip. The other end of button K4 is electrically connected to pin 17 of the STC89C52 chip.

4. The voice control based fan circuit according to claim 1, wherein: The voice-controlled fan circuit also includes an indicator circuit, which comprises: resistor R4, transistor Q3, resistor R5, resistor R6, resistor R7, diode D2, diode D3, and diode D4. One end of resistor R4 is electrically connected to pin 4 of the STC89C52 chip, and the other end of resistor R4 is electrically connected to the base of transistor Q3. The collector of transistor Q3 is electrically connected to one end of resistor R5, one end of resistor R6, and one end of resistor R7, respectively. The other ends of resistors R5, R6, and R7 are electrically connected to the cathodes of diodes D2, D3, and D4, respectively. The anodes of diodes D2, D3, and D4 are all connected to the power supply VCC.

5. The voice control based fan circuit according to claim 1, wherein: The voice-controlled fan circuit also includes a display circuit, which is configured as a display screen LCD. The corresponding input terminal of the display screen LCD is electrically connected to the corresponding output terminal of the STC89C52 chip.

6. The voice control based fan circuit according to claim 1, wherein: The voice-controlled fan circuit also includes a reset circuit, which includes a resistor R8, a capacitor C1, and a button K1. One end of the resistor R8 is grounded, and the other end of the resistor R8 is electrically connected to one end of the capacitor C1, one end of the button K1, and pin 9 of the STC89C52 chip. The other ends of the capacitor C1 and the other ends of the button K1 are both electrically connected to the power supply VCC.

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