Simple control system and method for fan lamp

Abstract

The invention relates to a simple control system and method for a fan lamp, the system comprises a switch control module used for generating a power supply signal waveform and a receiving decoding module used for decoding the signal waveform, the switch control module comprises a mechanical switch assembly used for outputting a motor control signal, and the mechanical switch assembly comprises a waveform generation circuit and a fan switch. The waveform generation circuit comprises a first diode, a second diode and a live wire, the fan switch comprises a low-speed gear, a middle-speed gear, a high-speed gear and a positive and negative rotation switching gear, the low-speed gear is connected with the first diode to generate a negative half-wave signal, the middle-speed gear is connected with the second diode to generate a positive half-wave signal, and the high-speed gear is connected with the live wire to generate a full-wave signal; when in the high gear, a forward and reverse rotation switching gear is triggered to generate a forward and reverse rotation switching signal. Wherein the live wire can be understood as a built-in live wire. Through the power signal waveform modulation and decoding technology, the mechanical switch can control the start-stop, speed regulation, positive and negative rotation and lamp switching functions of the fan.

Description

Technical Field

[0001] The invention relates to a simple control system and method for a fan lamp, and belongs to the field of household appliance control. Background Art

[0002] DC fan lights with both lighting and ventilation functions are widely used. However, due to the design limitations of the control circuit, DC fan lights are currently controlled mainly by remote control or pull-cord switch. Remote control is convenient but easy to lose, while pull-cord switch is inconvenient to operate and non-intuitive. When used with a traditional wall switch, it can only achieve the limited function of turning the fan light on or off, which cannot meet the diverse needs of users in different scenarios.

[0003] Furthermore, traditional control methods such as wireless FM signals, infrared signals, Bluetooth signals, and Wi-Fi signals also have numerous shortcomings. For example, wireless FM signals are susceptible to interference and have limited transmission distances; infrared signals are highly directional, require linear transmission, and are easily obstructed; while Bluetooth signals can communicate over short distances, their connections are complex and lack stability; and while Wi-Fi signals have wide coverage, they rely on the network and may present latency and security risks. In practical applications, these methods often suffer from signal interference, limited transmission distances, poor device compatibility, and inadequate security, impacting user experience and stable device control. Summary of the Invention

[0004] This invention provides a simplified fan-lamp control system and method, aiming to address at least one of the technical issues existing in the prior art. To this end, the present invention proposes a fan-lamp control system and method that, through power signal waveform modulation and decoding technology, enables direct control of a DC fan's start / stop, speed adjustment, forward / reverse rotation, and light on / off functions from a wall switch.

[0005] The technical solution of the present invention relates to a control system for a fan lamp, comprising: It includes a switch control module for generating multiple power supply signal waveforms and a receiving and decoding module for decoding signal waveforms. The switch control module includes a mechanical switch component for outputting a fan motor control signal. The mechanical switch component includes a waveform generating circuit and a fan switch with multiple gears. The waveform generating circuit includes a first diode, a second diode and a live wire. The fan switch includes a low speed gear, a medium speed gear and a high speed gear, as well as a forward and reverse switching gear. The low speed gear is connected to the first diode to generate a negative half-wave signal, the medium speed gear is connected to the second diode to generate a positive half-wave signal, and the high speed gear is connected to the live wire to generate a full-wave signal. Wherein, when in the high speed gear, the forward and reverse switching gear is triggered to generate a forward and reverse switching signal.

[0006] Furthermore, when in the high-speed gear, the forward-reverse switching gear is triggered, resulting in a short-term power on and off to generate an on-off pulse sequence as a forward-reverse switching signal.

[0007] Furthermore, the receiving and decoding module includes an optocoupler isolation detection unit and a microcontroller. The optocoupler isolation detection unit samples the power signal waveform and converts it into a digital signal, which is then input into the microcontroller to control the fan motor and the lamp.

[0008] Furthermore, the receiving and decoding module has a built-in wireless expansion module to allow external devices to synchronously display the status of the switch control module and allow voice control.

[0009] Furthermore, the switch control module also includes a light switch for outputting a lamp control signal.

[0010] Furthermore, the switch control module also includes a light switch, a fan AC power input interface, and a light AC power input interface; the fan AC power passes through the fan AC interface, the fan switch, and the waveform generating circuit to generate a fan motor control signal that is input into the receiving and decoding module; the light AC power passes through the light AC power input interface and the light switch to generate a light control signal that is input into the receiving and decoding module.

[0011] Furthermore, the receiving and decoding module includes a receiver, and a fan signal detector, a fan motor power supply, a first microcontroller and a motor controller connected in sequence, and a light detector, a light power supply, a second microcontroller and a light controller connected in sequence; the fan signal detector is used to receive a fan motor control signal, and the light signal detector is used to receive a light control signal; the first microcontroller and the second microcontroller are respectively connected to the receiver; the motor controller is connected to the fan motor, and the light controller is connected to the lamp.

[0012] Furthermore, the switch control module also includes a light switch and an AC power input interface; the fan AC power passes through the AC power input interface, the fan switch and the waveform generating circuit to generate a fan motor control signal which is input into the receiving and decoding module, and is decoded by the receiving and decoding module and output to control the fan motor; the light AC power passes through the AC power input interface and the light switch to generate a light control signal which directly controls the lamp.

[0013] Furthermore, the switch control module also includes an AC power input interface; the fan AC power passes through the AC input interface, the fan switch and the waveform generating circuit to generate a fan motor control signal which is input into the receiving and decoding module, and is decoded by the receiving and decoding module and output to control the fan motor.

[0014] Another aspect of the technical solution of the present invention relates to a control method for a fan light, which is applied to the control system of the fan light in the above embodiment; the method comprises the following steps: When a continuous half-wave signal is received, the fan motor speed is adjusted to low speed or medium speed. When a positive half-wave signal is received, the microcontroller interprets it as a higher speed, and then adjusts the fan speed to medium speed when a positive half-wave is received, and adjusts the fan speed to low speed when a negative half-wave is received. When receiving a continuous full-wave signal, the fan speed is adjusted to the highest speed, high gear; When a short on-off pulse sequence is received, the microcontroller sends a reverse rotation command to the fan motor.

[0015] The beneficial effects of the present invention are as follows.

[0016] The simplified control system and method for a fan light in an embodiment of the present invention is based on a DC ceiling fan light wall control system with a mechanical switch. Through power signal waveform modulation and decoding technology, the wall switch directly controls the start / stop, speed regulation, forward / reverse rotation, and light on / off functions of the DC fan, while also being compatible with wireless remote control. The present invention achieves precise control of the DC fan light by embedding a specific control command waveform in the power signal and decoding it within the fan light's control unit. Users can adjust the fan light's various functions simply by operating a wall switch, without relying on complex wireless devices. This reduces system complexity and cost, improves system stability and reliability, and avoids problems such as wireless signal interference. Furthermore, its compatibility with wireless remote control also provides greater convenience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 2 is a schematic diagram of a system structure using wall control combined with dual live wire electric control according to an embodiment of the present invention.

[0018] Figure 2 2 is a schematic diagram of a system structure using wall control combined with single-live-wire electric control according to an embodiment of the present invention.

[0019] Figure 3 2 is a schematic diagram of a system structure using a wall control system combined with a single-live-wire, light-free electric control system according to an embodiment of the present invention.

[0020] Figure 4 4 is a circuit schematic diagram of a main control circuit according to an embodiment of the present invention.

[0021] Figure 5 4 is a circuit schematic diagram of a secondary control circuit according to an embodiment of the present invention.

[0022] Figure 6 4 is a circuit diagram of a current amplifier circuit according to an embodiment of the present invention.

[0023] Figure 7 4 is a circuit schematic diagram of a light control signal decoding circuit and a fan control signal decoding circuit according to an embodiment of the present invention.

[0024] Figure 8 4 is a circuit diagram of a motor power circuit according to an embodiment of the present invention.

[0025] Figure 9 4 is a circuit schematic diagram of a motor power input circuit according to an embodiment of the present invention.

[0026] Figure 10 is a circuit schematic diagram of a voltage sampling circuit according to an embodiment of the present invention.

[0027] Figure 11 4 is a circuit schematic diagram of a lamp power input circuit according to an embodiment of the present invention.

[0028] Figure 12 4 is a circuit schematic diagram of a light source control circuit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0030] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, terms such as "upper," "lower," "left," "right," "top," and "bottom" used in this disclosure are intended solely to describe the relative positions of the components of the disclosure as shown in the accompanying drawings.

[0031] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention. The term "and / or" as used herein includes any combination of one or more of the related listed items.

[0032] It should be understood that although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element without departing from the scope of the present disclosure.

[0033] See also Figures 1 to 12 The fan light control system of the present invention includes a switch control module for generating multiple power signal waveforms and a receiving and decoding module for decoding the signal waveforms. The switch control module includes a mechanical switch assembly for outputting fan motor control signals. The mechanical switch assembly includes a waveform generation circuit and a fan switch with multiple gears. The waveform generation circuit includes a first diode, a second diode, and a live wire. The fan switch includes low, medium, and high speed gears, as well as forward and reverse switching gears. The low speed gear is connected to the first diode to generate a negative half-wave signal, the medium speed gear is connected to the second diode to generate a positive half-wave signal, and the high speed gear is connected to the live wire to generate a full-wave signal. When in high speed gear, the forward and reverse switching gear is triggered to generate a forward and reverse switching signal. The live wire can be understood as a built-in live wire.

[0034] Traditional technologies mainly rely on wireless FM signals or infrared, Bluetooth, and Wi-Fi signals to achieve speed conversion, switching, and steering control of DC fan lights. The present invention adopts a new control method. Its DC ceiling fan light wall control system based on mechanical switches uses power signal waveform modulation and decoding technology to enable the wall switch to directly control the start and stop, speed regulation, forward and reverse rotation, and light switch functions of the DC fan, while being compatible with wireless remote control operations.

[0035] In some specific embodiments, the switch control module includes a mechanical switch assembly and a light switch. The mechanical switch assembly includes a fan switch with multiple gears and a waveform generating circuit composed of a first diode, a second diode, and a live wire connected in parallel. The fan switch includes an off gear, a low speed gear, a medium speed gear, and a forward and reverse switching gear. Figures 1 to 3, the low speed gear is connected to the first diode, and the first diode only conducts the negative half-wave to achieve an output with a duty cycle of 50%. The medium speed gear is connected to the second diode, and the second diode only conducts the positive half-wave to achieve an output with a duty cycle of 50%, wherein the MCU interprets it as a higher speed. The high speed gear is connected to the live wire to achieve full-wave conduction and an output with a duty cycle of 100%. When the fan switch is in the off gear, the fan is in the off state. When the fan switch is in the high speed gear, the forward and reverse switching gear is triggered, which can make the circuit power on and off once, generate an on-off pulse sequence and send it to the MCU to achieve forward and reverse switching of the fan rotation direction. It can be understood that the fan switch and light switch of the present invention can both adopt wall switches. Furthermore, the cathode of the first diode is connected to the fan switch, the anode of the first diode is connected to the receiving decoding module, and the anode of the second diode is connected to the fan switch and its cathode is connected to the receiving decoding module.

[0036] The present invention changes the current waveform characteristics of the live wire by switching the diode array connected to the waveform generating circuit through physical contacts, thereby modulating and decoding the power signal waveform to enable the wall switch to directly control the start and stop, speed regulation, forward and reverse rotation of the DC fan, and light switch functions. Specifically, different gears of the fan switch correspond to different diode combinations to generate specific waveform duty cycles. For example, the positive and negative half-wave duty cycles are both 50% and the full-wave duty cycle is 100%. The receiving module detects the waveform characteristics through an optical coupler and outputs a PWM signal to the fan motor driver to achieve speed regulation. Furthermore, the fan motor driver is a DC motor driver.

[0037] In one embodiment, the fan switch is a wall switch with built-in multi-position mechanical contacts. For example, the fan switch includes a four-position rotary switch or a segmented push-to-dial switch. Specifically, the four positions of the four-position rotary switch are off, low speed, medium speed, and high speed, and the switch is equipped with a push-type forward and reverse switch. When, and only when, the fan is in high speed, pressing the forward and reverse switch changes the direction of rotation of the fan motor. The present invention uses the physical contacts of the fan switch to switch the diode array connected to the waveform generation circuit, thereby changing the current waveform characteristics of the live wire, such as generating wall-controlled signals such as positive and negative half-wave rectification and full-wave conduction. Furthermore, the forward and reverse switch serves as a dedicated switch for triggering short-term power outages. When the fan is running at high speed, pressing or toggling the forward and reverse switch causes the waveform generation circuit to turn on and off power once, generating a forward and reverse switching signal. After the receiving module recognizes the switching signal of the short-term on-off mode, the MCU sends a reverse command, and the fan motor receives the command and responds.

[0038] In some embodiments, the receiving and decoding module of the present invention includes an optocoupler isolation detection unit and a microcontroller (MCU), which uses a high-speed optocoupler to sample the live wire waveform in real time, converts it into a digital signal and inputs it into the MCU. The microcontroller has a built-in pattern recognition algorithm and outputs a PWM signal to the DC fan motor driver based on the speed regulation logic of the pattern recognition algorithm, thereby realizing the fan speed regulation and forward and reverse rotation functions.

[0039] In one application embodiment, the logical judgment of the pattern recognition algorithm of the present invention includes: when a continuous half-wave signal is received, the fan speed is adjusted to gear 1 or gear 2 (corresponding to low speed and medium speed), wherein when a positive half-wave signal is received, the MCU interprets it as a higher speed, that is, when a positive half-wave is received, the fan speed is adjusted to gear 2, and when a negative half-wave is received, the fan speed is adjusted to gear 1; when a continuous full-wave signal is received, the fan speed is adjusted to the highest speed gear 3 (corresponding to high speed); when a short on-off sequence is received, the MCU sends a reverse instruction to the fan motor, specifically, triggering the forward and reverse switching gear to be turned on and off once is the forward and reverse switching signal.

[0040] In one embodiment, the system of the present invention is equipped with a wireless expansion module, allowing a display device such as a mobile phone app to simultaneously display the status of the wall switch (switch control module), such as the current fan speed and forward and reverse direction. It also enables voice control, such as receiving the voice command "AA (name of the voice assistant), reverse the fan." Specifically, the receiving module of the present invention integrates a Wi-Fi unit.

[0041] In one embodiment, the system of the present invention features wireless control compatibility and a power-off memory function. Specifically, the system employs a priority arbitration mechanism whereby the last operation of a wall control signal and a wireless remote control command takes precedence, effectively avoiding conflicts. Furthermore, the receiving module supports a power-off memory function, which preserves the last set operating status for fan direction, fan speed, and lighting.

[0042] The system of the present invention utilizes a mechanical switch, eliminating any normally-open electronic components. When in the off state, the system is completely powered off, achieving zero-power standby. Furthermore, signal encoding and decoding are achieved through the collaboration of diodes and optocouplers, eliminating the need for dedicated codec communication chips. This effectively reduces costs and achieves highly reliable control. Furthermore, users can achieve complex control using rotary or push-to-dial switches, following the traditional mechanical switch operation habits. Operation is simple and easy to master.

[0043] In one embodiment, see Figure 1The system of the present invention includes a switch control module, a receiving and decoding module and a working module. The working module includes a fan motor and a lamp. It adopts a simple wall control with a dual-live wire electric control method. The switch control module is used to generate a power signal waveform, which is received and decoded by the receiving decoder to control the working module.

[0044] In one embodiment, the switch control module (Wall Control) includes a fan switch (Fan switch), a waveform generating circuit and a light switch (Light switch), as well as an AC In L (For Fan) interface for the fan and an AC In L (For Light) interface for the light. The waveform generating circuit is provided with a first diode D 低 , the second diode D 中 and live wire, the first diode D 低 Used to generate low-speed signal A (Signal A (low speed)), the second diode D 中 It is used to generate medium speed signal B (Signal B (Medium speed)), which is connected to the live wire to generate high speed signal C and serve as a forward and reverse switch (Signal C (high speed) / Forward and reverse switch). The fan switch is equipped with three gear switches connected in parallel. The first diode D 低 , the second diode D 中 The three gear switches are connected in parallel with the built-in live wire, and the first diode D is connected in series with each other. 低 , the second diode D 中 The fan AC power passes through the fan AC power interface, the fan switch, and the waveform generation circuit, generating the fan motor AC input signal (AC In L Motor) before being input into the receiver and decoder module. Furthermore, the light AC power passes through the light AC power input interface and the light AC signal (AC In L Light) generated by the light switch before being input into the receiver and decoder module. The fan AC power input interface and the light AC power input interface are each connected to an external live wire.

[0045] In an application embodiment, see Figure 1The receiving and decoding module of the present invention includes a fan signal detector (Detection), a fan motor power supply (Motor Power Supply), a first microcontroller (MCU 1), and a motor controller (Motor Control), which are connected in sequence; as well as a light detector (Detection), a light power supply (Light Power Supply), a second microcontroller (MCU 2), and a light controller (Light Control), which are connected in sequence. The fan signal detector (Detection) is used to receive the fan motor AC input signal (AC In L Motor), and the light signal detector (Detection) is used to receive the light AC signal (AC In L Light). The fan motor power supply (Motor Power Supply) is connected to the motor controller (Motor Control), and the light power supply (Light Power Supply) is connected to the light controller (Light Control). The first microcontroller (MCU 1) and the second microcontroller (MCU 2) are each connected to a receiver. It is understood that the receiver of the present invention can be an optocoupler receiver, using a high-speed optocoupler to sample the live wire waveform in real time. Furthermore, the receiving and decoding module has a built-in Wi-Fi transmitter, making it compatible with wireless expansion. The fan motor power supply and light power supply are each connected to an external neutral wire.

[0046] In an application embodiment, see Figure 1 The working module of the present invention includes a fan motor and a lamp. A motor controller is connected to the fan motor (Motor). Based on the received power waveform signal, the first controller MCU1 sends PWM signals to the motor controller to control the fan motor's start / stop, speed, and direction. A light controller is connected to the lamp (Light). The second controller sends signals to the light controller to control the lamp's on / off.

[0047] In one embodiment, see Figure 2 The system of the present invention includes a switch control module, a receiving and decoding module and a working module. It adopts a simple wall control with a single live wire electrical control method. The switch control module is used to generate a power signal waveform, which is received and decoded by the receiving decoder to control the working module.

[0048] In an application embodiment, see Figure 2The switch control module (Wall Control) of the present invention includes a fan switch (Fan switch), a waveform generation circuit, a light switch (Light switch), and an AC power input interface (AC InL). The AC power input interface connects to an external live wire. The fan AC power, which passes through the AC power input interface, the fan switch, and the waveform generation circuit, generates a fan motor AC input signal (AC InL), which is then input into the receiver / decoder module (Receiver). The output (Out) of the receiver / decoder module controls the fan motor (Motor). Furthermore, the light AC power, which passes through the AC power input interface and the light switch, generates a light AC signal (Light Out) that directly controls the light fixture (Light). It should be noted that the structure and connection relationship between the fan switch and the signal waveform generation circuit in the simple wall control with single live wire electrical control are the same as those in the simple wall control with dual live wire electrical control. Furthermore, the receiver / decoder module (Receiver) of this embodiment can be an optocoupler receiver. Furthermore, the receiver / decoder module (Receiver) of this embodiment has a built-in Wi-Fi transmitter (Transmitter). Furthermore, the receiving and decoding module (Receiver) and the lamp are respectively connected to the external neutral line.

[0049] In one embodiment, see Figure 3 The system of the present invention includes a switch control module, a receiving and decoding module and a working module. It adopts a simple wall control with a single live wire no-light electric control method. The switch control module is used to generate a power signal waveform, which is received and decoded by the receiving decoder to control the working module.

[0050] In an application embodiment, see Figure 3 The switch control module (Wall Control) of the present invention includes a fan switch (Fan switch), a waveform generation circuit, and an AC input interface (AC In L), which is connected to an external live wire. The fan AC power passes through the AC input interface, the fan switch, and the waveform generation circuit to generate a fan motor AC input signal (AC In L), which is input into the receiver and decoder module (Receiver). The output of the receiver and decoder module (Out) controls the fan motor (Motor).

[0051] It should be noted that the structure and connection relationship between the fan switch and signal waveform generation circuit in the simple wall control with single-live-wire electrical control method are the same as those in the simple wall control with dual-live-wire electrical control method. Furthermore, the receiver (receiver) of this embodiment can be an optocoupler receiver. Furthermore, the receiver (receiver) of this embodiment has a built-in Wi-Fi transmitter. The receiver (receiver) is connected to the external neutral wire.

[0052] It's understood that in both the simple wall control with single-live-wire electrical control and the simple wall control with single-live-wire, no-light electrical control, the fan motor control portion of the receiving and decoding module is the same as in the simple wall control with dual-live-wire electrical control. Specifically, in both the simple wall control with single-live-wire electrical control and the simple wall control with single-live-wire, no-light electrical control, the receiving and decoding module includes a fan signal detector, a fan motor power supply, a first microcontroller, and a motor controller, all connected in sequence. The fan signal detector receives the fan motor's AC input signal (AC In L), and the fan motor power supply is connected to the motor controller. The first microcontroller is connected to the receiver, and the motor controller is connected to the fan motor.

[0053] In some embodiments, the system of the present invention includes a main control circuit for motor control and a sub-control circuit for light control, as well as a current amplification circuit, see Figure 4 、 Figure 5 and Figure 6 The second microcontroller U2 of the main control circuit is the main MCU, and the fourth microcontroller U4 of the auxiliary control circuit is the auxiliary MCU. It can be understood that the second microcontroller U2 and the fourth microcontroller U4 can use the same control chip.

[0054] In an application embodiment, see Figure 4 In the main control circuit of the present invention, the +5V power supply is connected to the VDD5 pin of the first microcontroller U2 after passing through the fourteenth capacitor C14, the BZ pin of the first microcontroller U2 is connected to the buzzer circuit, the RF pin is connected to the radio frequency signal, and the DC_BUS pin is connected to the DC bus. The AC_MOT_N pin and AC_MOT_L pin of the first microcontroller U2 are respectively connected to the negative and positive poles of the fan motor. The OPIT pin, OPI+ pin, and OPI- pin of the first microcontroller U2 are respectively connected to the output pin, positive phase pin, and negative phase pin of the first operational amplifier, and the OP0T pin, OPO+ pin, and OPO- pin of the first operational amplifier are respectively connected to the output pin, positive phase pin, and negative phase pin of the second operational amplifier. Among them, the IU pin of the first microcontroller U2 is connected to the tenth capacitor C10 and the 28 resistor R28 for filtering, and the IU pin of the first microcontroller U2 is connected to the one-to-one capacitor C11 for decoupling.

[0055] In an application embodiment, see Figure 5 In the auxiliary control circuit of the present invention, the +5V power supply is connected to the VDD5 pin of the second microcontroller U4 through the first capacitor C1, the LIGHT pin of the second microcontroller U4 is connected to the light control signal, the AC_LED pin of the second microcontroller U4 is connected to the lamp, the RF_B pin of the second microcontroller U4 is connected to the radio frequency signal, and the DC_BUS_B pin of the second microcontroller U4 is connected to the DC bus.

[0056] In an application embodiment, see Figure 6 The current amplification circuit of the present invention includes a first operational amplifier and a second operational amplifier. The output pin of the first operational amplifier is connected to the OPIT pin of the first microcontroller U2, the non-inverting pin of the first operational amplifier is connected to the +5V power supply via a 22 resistor R22, the inverting pin of the first operational amplifier is grounded via a 27 resistor R27, and the output pin of the first operational amplifier is connected to the IU pin of the first microcontroller U2 via a 27 resistor R27 and a 20 resistor R20. The output pin of the second operational amplifier is connected to the OPIT pin of the first microcontroller U2, the non-inverting pin of the second operational amplifier is connected to the +5V power supply via a 23 resistor R23, and the inverting pin of the second operational amplifier is connected to the IU pin of the first microcontroller U2 via a 26 resistor R26 and a 25 resistor R25. An eighth capacitor C8 is connected between the non-inverting and inverting pins of the first operational amplifier, and a ninth capacitor C9 is connected between the non-inverting and inverting pins of the second operational amplifier.

[0057] In some embodiments, see Figure 7 The receiving and decoding module of the system of the present invention includes a lighting control signal decoding circuit and a fan control signal decoding circuit. Specifically, in the lighting control signal decoding circuit, the alternating current L1 is connected to the anode of the first optocoupler U1, and the cathode of the first optocoupler U1 is connected to the anode of the first rectifier diode D1. The alternating current N is connected to the first current limiting resistor R1 and the second current limiting resistor R2 connected in series, and then connected to the cathode of the first rectifier diode D1. The collector of the first optocoupler U1 is connected to the AC_LED pin of the first microcontroller U2, and is connected to the +5V power supply through a three-three resistor R33. The emitter of the first optocoupler U1 is grounded, and a one-two capacitor C12 is connected between its emitter and collector.

[0058] Furthermore, in the fan control signal decoding circuit, AC power L2 is connected to the cathode of the second optocoupler U3 and the anode of the third optocoupler U7, respectively. The anode of the second optocoupler U3 and the cathode of the third optocoupler U7 are each connected to a resistor R11. AC power N is connected to a seventh resistor R7 and a resistor R11 connected in series. The collector of the second optocoupler U3 is connected to the AC_MOT_L pin of the first microcontroller U2 and to a +5V power supply via a fifth resistor R5. The emitter of the second optocoupler U3 is grounded, and a capacitor C21 is connected between the emitter and collector. The collector of the third optocoupler U7 is connected to the AC_MOT_N pin of the first microcontroller U2 and to a +5V power supply via a sixth resistor R6. The emitter of the third optocoupler U7 is grounded, and a second capacitor C2 is connected between the emitter and collector.

[0059] In some embodiments, the system of the present invention includes a motor power circuit, see Figure 8 The motor power circuit includes a power driver chip U5 for driving the motor. The UP pin, UN pin, VP pin, VN pin, WP pin, and WN pin of the power driver chip U5 are respectively connected to the PWM1H pin, PWM1L pin, PWM2L pin, PWM2H pin, PWM3H pin, and PWM3L pin of the first microcontroller U2, and the IU pin of the power driver chip U5 is connected to the IU pin of the first microcontroller U2. The IV pin of the power driver chip U5 is connected to the non-inverting terminal of the first operational amplifier through a 21 resistor R21, and the IW pin of the power driver chip U5 is connected to the non-inverting terminal of the second operational amplifier through a 24 resistor R24. The VCC pin of the power driver chip U5 is connected to a +15V power supply, the P pin of the power driver chip U5 is connected to a 310VDC power supply, and the U pin, V pin, and W pin of the power driver chip U5 are respectively connected to three pins of the first transformer L2 and the 310VDC power supply.

[0060] In some embodiments, the system of the present invention includes a motor power input circuit, see Figure 9 The motor power input circuit includes a second rectifier bridge DB2, the V+ pin of the second rectifier bridge DB2 is connected to the HV power supply, the two AC pins of the second rectifier bridge DB2 are respectively connected to the fan motor MOT_L and the alternating current N, a first capacitor CX1 is connected between the two AC pins of the second rectifier bridge DB2, and a second varistor RV2 is connected between the two AC pins of the second rectifier bridge DB2.

[0061] In some embodiments, the system of the present invention includes a voltage sampling circuit, see Figure 10In the voltage sampling circuit, one end of a circuit formed by a parallel connection of a 3-way capacitor C13 and a 3-way resistor R30 is grounded, while the other end is connected to a 310VDC power supply via an 8-way resistor R18 and a 7-way resistor R17. The DC_BUS pin of the first microcontroller U2 is connected between the 8-way resistor R18 and the 3-way capacitor C13.

[0062] In some embodiments, the system of the present invention includes a lamp power input circuit, see Figure 11 In the lamp power input circuit, the input AC power CAN passes through the series-connected first fuse F1 and first varistor NTC1, is rectified by the first rectifier bridge DB1, and then filtered by the series-connected first filter capacitor CY1 and second filter capacitor CY2, generating a high-voltage DC power HV. The high-voltage DC power HV is connected to LED+ via the seventh diode D7L, and then passes through the parallel-connected first and second Zener diodes D9 and D10. It is then stepped down by the first transformer T1, resulting in a secondary output of 310VDC. The secondary output 310VDC is rectified by the third and fourth rectifier bridges D3 and D4, and filtered by the 18th and 19th filter capacitors C18 and C19, generating a stable DC power of +15V. This stable DC power +15V is stabilized by the first voltage regulator U6, resulting in a +5V power supply VCC. The +5V power supply VCC is further filtered by the third and fourth inductors L3 and L4, as well as the 34th and 35th filter capacitors C34 and C35, generating a stable +5V power supply.

[0063] In some embodiments, the system of the present invention includes a light source control circuit, see Figure 12 The light source control circuit includes a first transistor Q1, a second transistor Q2, and a sixth transistor Q6. The base of the second transistor Q2 is connected to the LIGHT pin of the first microcontroller U2 via a 4 / 7 resistor R47. The collector of the second transistor Q2 is connected to a +15V power supply via a 4 / 8 resistor R48 and a 4 / 9 resistor R49. The emitter of the second transistor Q2 is grounded. The base of the sixth transistor Q6 is connected to the +15V power supply via a 4 / 9 resistor R49. The emitter of the sixth transistor Q6 is connected to the +15V power supply. The collector of the sixth transistor Q6 is connected to the base of the first transistor Q1 via a 5 / 0 resistor R50. The collector of the first transistor Q1 is connected to the LED- pin of the LED lamp. The emitter of the first transistor Q1 is grounded via a 3 / 2 resistor R32.

[0064] See also Figures 1 to 7 The simple control method of the fan light of the technical solution of the present invention is applied to the simple control system of the fan light of the embodiment of the present invention, and the method comprises at least the following steps: When a continuous half-wave signal is received, the fan motor speed is adjusted to low speed or medium speed. When a positive half-wave signal is received, the microcontroller interprets it as a higher speed, and then adjusts the fan speed to medium speed when a positive half-wave is received, and adjusts the fan speed to low speed when a negative half-wave is received. When receiving a continuous full-wave signal, the fan speed is adjusted to the highest speed, high gear; When a short on-off pulse sequence is received, the microcontroller sends a reverse rotation command to the fan motor.

[0065] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the aforementioned embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. Within the scope of protection of the present invention, its technical solutions and / or implementation methods may be modified and varied in various ways.

Claims

1. A fan light control system, characterized in that: It includes a switch control module for generating multiple power supply signal waveforms and a receiving and decoding module for decoding signal waveforms. The switch control module includes a mechanical switch component for outputting a fan motor control signal. The mechanical switch component includes a waveform generating circuit and a fan switch with multiple gears. The waveform generating circuit includes a first diode, a second diode and a live wire. The fan switch includes a low speed gear, a medium speed gear and a high speed gear, as well as a forward and reverse switching gear. The low speed gear is connected to the first diode to generate a negative half-wave signal, the medium speed gear is connected to the second diode to generate a positive half-wave signal, and the high speed gear is connected to the live wire to generate a full-wave signal. Wherein, when in the high speed gear, the forward and reverse switching gear is triggered to generate a forward and reverse switching signal.

2. The fan light control system according to claim 1, characterized in that: When in high-speed gear, the forward-reverse switching gear is triggered, resulting in a short-term on-off power cycle to generate an on-off pulse sequence as a forward-reverse switching signal.

3. The fan light control system according to claim 1, characterized in that: The receiving and decoding module includes an optocoupler isolation detection unit and a microcontroller. The optocoupler isolation detection unit samples the power signal waveform and converts it into a digital signal, which is then input into the microcontroller to control the fan motor and the lamp.

4. The fan light control system according to claim 1, characterized in that: The receiving and decoding module has a built-in wireless expansion module to allow external devices to synchronously display the status of the switch control module and allow voice control.

5. The fan light control system according to claim 1, characterized in that: The switch control module further includes a light switch for outputting a lamp control signal.

6. The fan light control system according to claim 1, characterized in that: The switch control module also includes a light switch, a fan AC power input interface, and a light AC power input interface; the fan AC power passes through the fan AC interface, the fan switch, and the waveform generation circuit to generate a fan motor control signal that is input into the receiving and decoding module; The lighting AC power passes through the lighting AC power input interface and the lighting switch in sequence to generate a lighting control signal which is input into the receiving and decoding module.

7. The fan light control system according to claim 6, characterized in that: The receiving and decoding module includes a receiver, and a fan signal detector, a fan motor power supply, a first microcontroller and a motor controller connected in sequence, as well as a light detector, a light power supply, a second microcontroller and a light controller connected in sequence; the fan signal detector is used to receive the fan motor control signal, and the light signal detector is used to receive the light control signal; the first microcontroller and the second microcontroller are respectively connected to the receiver; the motor controller is connected to the fan motor, and the light controller is connected to the lamp.

8. The fan light control system according to claim 1, characterized in that: The switch control module also includes a light switch and an AC power input interface; the fan AC power passes through the AC power input interface, the fan switch and the waveform generating circuit, and then generates a fan motor control signal which is input into the receiving and decoding module, and is decoded by the receiving and decoding module and output to control the fan motor; the light AC power passes through the AC power input interface and the light switch, and then generates a light control signal which directly controls the lamp.

9. The fan light control system according to claim 1, characterized in that: The switch control module also includes an AC input interface; the fan AC power passes through the AC input interface, the fan switch and the waveform generating circuit, and the fan motor control signal generated is input into the receiving and decoding module, and is decoded by the receiving and decoding module and output to control the fan motor.

10. A method for controlling a fan light, characterized in that: A control system for a fan light according to any one of claims 1 to 9; the method comprising the following steps: When a continuous half-wave signal is received, the fan motor speed is adjusted to low speed or medium speed. When a positive half-wave signal is received, the microcontroller interprets it as a higher speed, and then adjusts the fan speed to medium speed when a positive half-wave is received, and adjusts the fan speed to low speed when a negative half-wave is received. When receiving a continuous full-wave signal, the fan speed is adjusted to the highest speed, high gear; When a short on-off pulse sequence is received, the microcontroller sends a reverse rotation command to the fan motor.

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