A luminaire controller for integrated air purification and full color LEDs

Abstract

The utility model discloses a kind of for integrated air purification and full-color LED's lamp controller, including MCU main control module, DC-DC voltage reduction module, DC-DC voltage reduction module, full-color LED drive module, wireless communication module group, sound detection module, anti-toppling module, DC-DC voltage reduction module converts external input voltage into control system operating voltage, fan driving module connects fan, full-color LED drive module connects full-color LED light band, wireless communication module group is used to receive external wireless control signal, sound detection module is used to connect MIC1 microphone input external sound analog signal into output PWM signal control full-color LED light band digital signal, anti-toppling module is used to detect lamp tilt state, and the controller of present scheme is used for the lamp of integrated air purification and full-color LED function, realize its wireless remote control, toppling alarm and full-color LED light band follow external environmental sound rhythm.

Description

Technical Field

[0001] This utility model relates to the field of lighting controller motherboard technology, and in particular to a lighting controller for integrating air purification and full-color LEDs. Background Technology

[0002] In daily life, we use various electronic products to meet our needs, such as desktop air purifiers to optimize air quality in local spaces; and LED lights to meet lighting requirements. Some LED lights use full-color LED strips, which not only provide illumination but also offer dynamic ambient lighting effects with different colors and brightness levels. Currently, small air purifiers and small LED lights are usually separate products, each requiring its own space. Integrating them into one product reduces space usage and is more economical and practical, offering greater functionality. Integrating these two functions into one product involves designing the casing and housing the functional components. Another key aspect is integrating the control units of both into a single controller unit. Continuing with two separate control boards is both inflexible in operation and cost-inefficient. This solution aims to provide a controller unit for integrating air purification and full-color LED lighting, allowing the control functions of both to be integrated onto a single main control board. Utility Model Content

[0003] In view of this, the present invention proposes a lighting controller for integrating air purification and full-color LEDs. This lighting controller serves as the main control circuit board for a two-in-one product that combines air purification and full-color LED lighting. It controls the air purification fan and the full-color LED light strip, while also featuring wireless remote control, tilt alarm, and a full-color LED light strip illumination mode that follows the rhythm of external ambient sounds, thus better meeting consumer needs.

[0004] The specific technical solution of this utility model is a lighting controller for integrating air purification and full-color LED. include: The MCU main control module adopts a KF32L100IQS microcontroller. The DC-DC step-down module connected to the power input terminal of the MCU main control module is used to convert the external input voltage into the operating voltage of the control system. A fan drive module is connected to the control output terminal of the MCU main control module. The fan drive module is connected to the fan and is used to drive the fan to operate. A full-color LED driver module is connected to the control output terminal of the MCU main control module. The full-color LED driver module is connected to the full-color LED light strip and is used to drive the full-color LED light strip. A wireless communication module group connected to the communication interface of the MCU main control module is used to receive external wireless control signals; The sound detection module connected to the AD sampling input terminal of the MCU main control module is used to connect the analog signal of the external sound input to the MIC1 microphone and convert it into a digital signal for outputting a PWM signal to control the full-color LED light strip; And an anti-tipping module connected to the signal input terminal of the MCU main control module, used to detect the tilt state of the lamp. When the lamp is tilted, the MCU main control module controls the fan drive module to disconnect the fan circuit.

[0005] Furthermore, the DC-DC step-down module includes a step-down circuit and a linear regulator circuit. The step-down circuit is equipped with an OC5864 step-down chip U2, which reduces the externally input 12V or 24V voltage to 5V, providing a 5V operating voltage for the fan drive module and the full-color LED drive module. The linear regulator circuit is equipped with an AMS1117 linear regulator chip, which stabilizes the 5V voltage output to 3.3V, providing a 3.3V operating voltage for the MCU main control module, the wireless communication module group, the sound detection module, and the anti-tipping module.

[0006] Furthermore, the wireless communication module group includes an RF2.4G communication module and a WIFI communication module. The RF2.4G communication module is connected to the MCU main control module through an SPI interface, and the WIFI communication module is connected to the MCU main control module through a UART serial port.

[0007] Furthermore, the RF2.4G communication module uses the LT8920 chip U8, and the WIFI communication module uses the WBR3 chip U5.

[0008] Furthermore, the anti-tipping module includes two tilt sensors, namely a first tilt sensor set to a first tilt angle and a second tilt sensor set to a second tilt angle. The first tilt angle is 15 degrees and the second tilt angle is 30 degrees. The output terminals of the first tilt sensor and the second tilt sensor are respectively connected to different I / O pins of the MCU main control module.

[0009] Furthermore, the MCU main control module is connected to a buzzer module, which includes resistor R51, buzzer SPK1, NPN transistor Q10, resistor R44, and resistor R45. Resistor R51 is connected in series with the input 3.3V operating voltage and the positive terminal of buzzer SPK1 to limit the operating current of buzzer SPK1. The negative terminal of buzzer SPK1 is connected to the collector of NPN transistor Q10. Resistor R44 is connected to the output terminals BZ and N of the MCU main control module. The base of the NPN transistor Q10 is used to limit the base current. Resistor R45 is connected between the base of the NPN transistor Q10 and ground. When the MCU main control module outputs a low level, resistor R45 pulls the base potential low to prevent the NPN transistor Q10 from being mistakenly turned on due to base leakage current. The NPN transistor Q10 is used for current amplification to supply the buzzer SPK1. The buzzer SPK1 is activated when the first tilt sensor and the second tilt sensor are triggered.

[0010] Furthermore, the sound detection module includes an electret microphone MIC1, resistors R52, R53, and R54, an NPN transistor Q12, and a capacitor C23. The positive terminal of the electret microphone MIC1 is connected to one end of resistor R53 via resistor R52 and capacitor C23 in series. The other end of resistor R53 is simultaneously connected to one end of resistor R54 and the collector of NPN transistor Q12. The other end of resistor R54 serves as the MIC pin output signal. The negative terminal of the electret microphone MIC1 is directly grounded. The emitter of NPN transistor Q12 is grounded, and the base is connected to a 3.3V power supply via resistor R54.

[0011] Furthermore, this solution also includes a touch button module connected to the MCU main control module. The touch button module includes a single-channel touch circuit module and a dual-channel touch circuit module, both using PT2049 touch sensing chips. The single-channel touch circuit module is equipped with a reset touch button for function reset. The dual-channel touch circuit module is equipped with a fan control button for controlling the fan to turn on and off, and a full-color LED strip control button for controlling the full-color LED strip to turn on and off and switching LED light modes.

[0012] Furthermore, this solution also includes an indicator light module connected to the control output terminal of the MCU main control module. The indicator light module includes a blue indicator light for indicating the WIFI status, a green indicator light for indicating the RF2.4G radio frequency communication status, and a red indicator light for indicating system faults.

[0013] The beneficial effects of this utility model are as follows: This controller integrates a fan drive module and a full-color LED drive module, integrating the fan controlling the air purification function and the full-color LED light strip into a single control board. It also includes a wireless communication module group for wireless remote control; a sound detection module that picks up analog signals of external sound through a microphone (MIC1), and outputs a PWM signal via the MCU main control module to control the digital signal of the full-color LED light strip to follow the rhythm of the sound; and an anti-tipping module that detects the tilt angle threshold of the lamp through a tilt sensor, triggering the MCU main control module to output a warning signal and simultaneously controlling the fan drive module to disconnect the fan circuit. Thus, this lamp controller functions as the main control circuit board for a two-in-one product combining air purification and full-color LED lighting, satisfying the control of the air purification fan and the full-color LED light strip, while also providing wireless remote control, tilt alarm, and a full-color LED light strip illumination mode that follows the rhythm of external ambient sound, better meeting consumer needs. Attached Figure Description

[0014] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0015] Figure 1 This is a schematic diagram of the lighting controller for integrating air purification and full-color LEDs disclosed in this utility model.

[0016] Figure 2 This is the circuit schematic diagram of the DC-DC step-down module disclosed in this utility model.

[0017] Figure 3 This is the circuit schematic diagram of the MCU main control module disclosed in this utility model.

[0018] Figure 4 This is a schematic diagram of the fan drive module circuit disclosed in this utility model.

[0019] Figure 5 This is a circuit diagram of the full-color LED driver module disclosed in this utility model.

[0020] Figure 6 This is the circuit schematic diagram of the RF2.4G communication module disclosed in this utility model.

[0021] Figure 7 This is a circuit schematic diagram of the WIFI communication module disclosed in this utility model.

[0022] Figure 8 This is a circuit diagram of the sound detection module disclosed in this utility model.

[0023] Figure 9 This is a circuit diagram of the anti-tipping module disclosed in this utility model.

[0024] Figure 10 This is the circuit schematic diagram of the buzzer module disclosed in this utility model.

[0025] Figure 11 The schematic diagram of the touch button module disclosed in this utility model is as follows. Figure 12 This is a circuit diagram of the indicator light module disclosed in this utility model. Detailed Implementation

[0026] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this disclosure.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please refer to Figures 1 to 9The lighting controller disclosed in this technical solution integrates air purification and full-color LED. The air purification function uses a fan to draw in outside air to one side of the air filter and then outputs it from the other side. The outside air is filtered through the air filter to achieve the effect of air purification. The lighting controller includes an MCU main control module, which is a KF32L100IQS microcontroller; a DC-DC step-down module connected to the power input terminal of the MCU main control module, used to convert the external input voltage into the control system operating voltage; a fan drive module connected to the control output terminal of the MCU main control module, connected to a fan, used to drive the fan; a full-color LED drive module connected to the control output terminal of the MCU main control module, connected to a full-color LED light strip, used to drive the full-color LED light strip; a wireless communication module group connected to the communication interface of the MCU main control module, used to receive external wireless control signals; a sound detection module connected to the AD sampling input terminal of the MCU main control module, used to connect to the MIC1 microphone to input external sound analog signals and convert them into output PWM signals to control the full-color LED light strip digital signals; and an anti-tilt module connected to the signal input terminal of the MCU main control module, used to detect the tilt state of the lighting fixture, and when the lighting fixture is tilted, the MCU main control module controls the fan drive module to disconnect the fan circuit.

[0029] Please refer to Figure 2 In this embodiment, the DC-DC step-down module includes a step-down circuit and a linear regulator circuit. The step-down circuit is equipped with an OC5864 step-down chip U2, which reduces the externally input 12V or 24V voltage to 5V, providing a 5V operating voltage for the fan drive module and the full-color LED drive module. The linear regulator circuit is equipped with an AMS1117 linear regulator chip, which stabilizes the 5V voltage to 3.3V, providing a 3.3V operating voltage for the MCU main control module, the wireless communication module group, the sound detection module, and the anti-tipping module.

[0030] Please refer to Figure 6 , Figure 7 In this embodiment, preferably, the wireless communication module group includes an RF2.4G communication module and a WIFI communication module. The RF2.4G communication module is connected to the MCU main control module via an SPI interface, and the WIFI communication module is connected to the MCU main control module via a UART serial port. Preferably, the RF2.4G communication module uses the LT8920 chip U8, and the WIFI communication module uses the WBR3 chip U5.

[0031] Please refer to Figure 9In this embodiment, preferably, the anti-tipping module includes two tilt sensors: a first tilt sensor set to a first tilt angle of 15 degrees and a second tilt sensor set to a second tilt angle of 30 degrees. The output terminals of the first and second tilt sensors are respectively connected to different I / O pins of the MCU main control module. Simultaneously, the MCU main control module is connected to a buzzer module, which includes a resistor R51, a buzzer SPK1, an NPN transistor Q10, resistors R44 and R45. Resistor R51 is connected in series between the input 3.3V operating voltage and the positive terminal of the buzzer SPK1 to limit the operating current of the buzzer SPK1. The negative terminal of the buzzer SPK1 is connected to the collector of the NPN transistor Q10. Resistor R44 is connected to the output terminal BZ of the MCU main control module and the NPN transistor Q10. The base of the N-type transistor Q10 is used to limit the base current. Resistor R45 connects the base of the NPN transistor Q10 to ground. When the MCU main control module outputs a low level, resistor R45 pulls the base potential low, preventing the NPN transistor Q10 from being mis-energized by base leakage current. The NPN transistor Q10 is used for current amplification, supplying current to the buzzer SPK1. The buzzer module activates the buzzer SPK1 when the first tilt sensor and the second tilt sensor are triggered. Specifically, when the first tilt sensor is triggered, the MCU main control module outputs control to control the buzzer SPK1 to emit a slow alarm sound with low-frequency (e.g., 800Hz) pulses with long intervals. When the second tilt sensor is triggered, the MCU main control module outputs control to control the buzzer SPK1 to emit a fast alarm sound with high-frequency (e.g., 2500Hz or 3000Hz) pulses with dense pulses.

[0032] Please refer to Figure 8In this embodiment, the sound detection module includes an electret microphone MIC1, resistors R52, R53, and R54, an NPN transistor Q12, and a capacitor C23. The positive terminal of the electret microphone MIC1 is connected to one end of resistor R53 via resistor R52 and capacitor C23 in series. The other end of resistor R53 is simultaneously connected to one end of resistor R54 and the collector of NPN transistor Q12. The other end of resistor R54 serves as the MIC pin output signal. The negative terminal of the electret microphone MIC1 is directly grounded. The emitter of NPN transistor Q12 is grounded, and the base is connected to a 3.3V power supply via resistor R54. The RC filter network consisting of capacitor C23 (1μF) and resistor R52 (4.7kΩ) suppresses high-frequency noise. When the external sound analog signal picked up by the electret microphone MIC1 contains the target audio and high-frequency interference, the high-frequency noise is attenuated by the RC network due to the characteristic that "capacitive reactance decreases with increasing frequency." The target audio (low to mid-frequency range), due to its lower frequency and higher capacitive reactance, passes through smoothly, thus filtering out the high-frequency noise. The voltage divider network consisting of resistors R53 (1MΩ) and R54 (10kΩ) performs impedance matching and signal attenuation on the analog signal output by the microphone. On the one hand, by adjusting the signal amplitude through voltage division, it prevents the NPN transistor Q12 in the subsequent circuit from distorting due to excessive signal strength; on the other hand, it matches the impedance of the microphone and subsequent circuits, reducing signal loss during transmission and ensuring signal integrity.

[0033] Please refer to Figure 11 In this embodiment, the solution further includes a touch button module connected to the MCU main control module. The touch button module includes a single-channel touch circuit module and a dual-channel touch circuit module, both using PT2049 touch sensing chips. The single-channel touch circuit module has a reset touch button for function reset. The dual-channel touch circuit module has a fan control button for controlling the fan's on / off state and a full-color LED strip control button for controlling the full-color LED strip's on / off state and switching LED light modes. The LED light modes for the full-color LED strip include switching between different colors, brightness, and dynamic modes, and also include switching to a mode where the LEDs pulse in response to external sounds via a sound detection module.

[0034] Please refer to Figure 12 The solution also includes an indicator light module connected to the control output terminal of the MCU main control module. The indicator light module includes a blue indicator light for indicating the WIFI status, a green indicator light for indicating the RF2.4G radio frequency communication status, and a red indicator light for indicating system faults.

[0035] This technical solution mainly realizes that the lighting controller is the main control circuit board of a two-in-one product that combines air purification function and full-color LED lighting. It can control the air purification fan and the full-color LED light strip, and at the same time has wireless remote control, tilt alarm and full-color LED light strip illumination mode that follows the external ambient sound, so as to better meet the needs of consumers.

[0036] The parts not described in detail in this technical solution specification are obvious to those skilled in the art and can be supplemented and improved based on existing technical knowledge. At the same time, those skilled in the art should understand that the above embodiments are merely preferred embodiments of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A lighting controller for integrating air purification and full-color LEDs, characterized in that, include: MCU main control module; The DC-DC step-down module connected to the power input terminal of the MCU main control module is used to convert the external input voltage into the operating voltage of the control system. A fan drive module is connected to the control output terminal of the MCU main control module. The fan drive module is connected to the fan and is used to drive the fan to operate. A full-color LED driver module is connected to the control output terminal of the MCU main control module. The full-color LED driver module is connected to the full-color LED light strip and is used to drive the full-color LED light strip. A wireless communication module group connected to the communication interface of the MCU main control module is used to receive external wireless control signals; The sound detection module connected to the AD sampling input terminal of the MCU main control module is used to connect the analog signal of the external sound input to the MIC1 microphone and convert it into a digital signal for outputting a PWM signal to control the full-color LED light strip; And an anti-tipping module connected to the signal input terminal of the MCU main control module, used to detect the tilt state of the lamp. When the lamp is tilted, the MCU main control module controls the fan drive module to disconnect the fan circuit.

2. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, The DC-DC step-down module includes a step-down circuit and a linear regulator circuit. The step-down circuit is equipped with an OC5864 step-down chip U2, which reduces the externally input 12V or 24V voltage to 5V, providing a 5V operating voltage for the fan drive module and the full-color LED drive module. The linear regulator circuit is equipped with an AMS1117 linear regulator chip, which stabilizes the 5V voltage output to 3.3V, providing a 3.3V operating voltage for the MCU main control module, the wireless communication module group, the sound detection module, and the anti-tipping module.

3. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, The wireless communication module group includes an RF2.4G communication module and a WIFI communication module. The RF2.4G communication module is connected to the MCU main control module through an SPI interface, and the WIFI communication module is connected to the MCU main control module through a UART serial port.

4. The lighting controller for integrating air purification and full-color LED according to claim 3, characterized in that, The RF2.4G communication module uses the LT8920 chip U8, and the WIFI communication module uses the WBR3 chip U5.

5. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, The anti-tipping module includes two tilt sensors: a first tilt sensor set to a first tilt angle of 15 degrees and a second tilt sensor set to a second tilt angle of 30 degrees. The output terminals of the first tilt sensor and the second tilt sensor are respectively connected to different I / O pins of the MCU main control module.

6. The lighting controller for integrating air purification and full-color LED according to claim 5, characterized in that, The MCU main control module is connected to a buzzer module, which includes a resistor R51, a buzzer SPK1, an NPN transistor Q10, a resistor R44, and a resistor R45. Resistor R51 is connected in series with the input 3.3V operating voltage and the positive terminal of the buzzer SPK1 to limit the operating current of the buzzer SPK1. The negative terminal of the buzzer SPK1 is connected to the collector of the NPN transistor Q10. Resistor R44 is connected to the output terminal BZ of the MCU main control module and the base of the NPN transistor Q10 to limit the base current. Resistor R45 is connected to the base of the NPN transistor Q10 and ground. When the MCU main control module outputs a low level, resistor R45 pulls the base potential low to prevent the NPN transistor Q10 from being mis-energized by the base leakage current. The NPN transistor Q10 is used for current amplification to supply the buzzer SPK1. The buzzer SPK1 is activated when the first tilt sensor and the second tilt sensor are triggered.

7. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, The sound detection module includes an electret microphone MIC1, resistors R52, R53, and R54, an NPN transistor Q12, and a capacitor C23. The positive terminal of the electret microphone MIC1 is connected to one end of resistor R53 via resistor R52 and capacitor C23 in series. The other end of resistor R53 is simultaneously connected to one end of resistor R54 and the collector of NPN transistor Q12. The other end of resistor R54 serves as the MIC pin output signal. The negative terminal of the electret microphone MIC1 is directly grounded. The emitter of NPN transistor Q12 is grounded, and the base is connected to a 3.3V power supply via resistor R54.

8. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, It also includes a touch button module connected to the MCU main control module. The touch button module includes a single-channel touch circuit module and a dual-channel touch circuit module, both of which use PT2049 touch sensing chips. The single-channel touch circuit module is equipped with a reset touch button for function reset. The dual-channel touch circuit module is equipped with a fan control button for controlling the fan to turn on and off, and a full-color LED light strip control button for controlling the full-color LED light strip to turn on and off and switch LED light modes.

9. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, It also includes an indicator light module connected to the control output terminal of the MCU main control module. The indicator light module includes a blue indicator light for indicating the WIFI status, a green indicator light for indicating the RF2.4G radio frequency communication status, and a red indicator light for indicating system faults.

10. The lighting controller for integrating air purification and full-color LED according to claim 1, characterized in that, The MCU main control module uses a KF32L100IQS microcontroller.

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