Acousto-optic linkage control system of loudspeaker box projection lamp

Abstract

The invention provides an acousto-optic linkage control system of a loudspeaker box projection lamp, which comprises a projection lamp module, a sound source input module, a Bluetooth chip processing module electrically connected with the sound source input module, and a power amplifier module electrically connected with the Bluetooth chip processing module, the Bluetooth chip processing module processes digital audio input by the sound source input module and then transmits processed data to the power amplifier module, the processed data is converted into sound through the power amplifier module and is output to the outside, and the projection lamp module comprises an LED light source matrix, a lens matrix, a projection sheet matrix and a projection lens matrix. The Bluetooth chip processing module is further electrically connected with the LED light source matrix, carries out algorithm processing on digital audios at the same time, collects key values of frequency spectrums and energy according to processed data, and is used for controlling on-off and gray adjustment of each LED lamp bead in the LED light source matrix. Therefore, the effect that the music and the animation are linked is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of sound box projection lamp control systems, and in particular relates to an acoustic and optical linkage control system of a sound box projection lamp. Background Art

[0002] The speaker is the terminal of the entire music playback system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into the space. It is an extremely important component of the music playback system because it bears the critical task of converting electrical signals into sound signals for the user to directly listen to. Speakers have a wide range of applications and are widely used in various occasions. Traditional speakers only play music and are obviously unable to meet the diverse needs of modern society. Therefore, people have combined speakers with projectors. While the speakers play music, the projectors can also project patterns onto the outside world, thus meeting the diverse needs of people who want to listen to music while viewing the projected patterns. However, first, the projected patterns cannot change, or can only be changed with simple rotation, resulting in a relatively rigid pattern that cannot meet people's growing needs. Second, the speaker and projection functions of the speaker projector lamp operate independently and cannot form a coordinated function. This results in a simple functional combination of speaker projectors and a lack of a dynamic whole, thus reducing the user experience. Summary of the Invention

[0003] The main purpose of the present invention is to provide a sound and light linkage control system for a speaker projector lamp. The Bluetooth chip processing module is also electrically connected to the LED light source matrix through a Bluetooth chip processing module. The Bluetooth chip processing module simultaneously performs algorithmic processing on the digital audio, collects the key values ​​of the spectrum and energy based on the processed data, and uses them as the control of the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix, thereby achieving the effect of lighting or turning off the corresponding LED lamp bead to project different projection patterns, thereby achieving the effect of presenting the linkage between music and animation. Using the above scheme, after processing the digital audio, the Bluetooth chip processing module controls the lighting and extinguishing of each LED lamp bead according to the processing results. The continuous lighting and extinguishing of the LED lamp bead project a coherent projection pattern to form an animation, so that the lighting and extinguishing rhythm of each LED lamp bead in the LED light source matrix coincides with the rhythm of the music. After passing through the matrix optical imaging system, a coherent key frame projection pattern is projected to form an animation, ultimately presenting the combined effect of music and animation.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A sound and light linkage control system for a speaker projector lamp, comprising: a projection lamp module, a sound source input module, a Bluetooth chip processing module electrically connected to the sound source input module, and a power amplifier module electrically connected to the Bluetooth chip processing module. The Bluetooth chip processing module processes the digital audio input by the sound source input module and transmits the processed data to the power amplifier module. The processed data is converted into sound by the power amplifier module and output to the outside world. The projection lamp module comprises: an LED light source matrix, a lens matrix, a projection film matrix, and a projection lens matrix. The LED light source matrix comprises a plurality of LED lamp beads, and the light emitted by each of the LED lamp beads depends on the light source matrix. After passing through the lens matrix, the projection film matrix and the projection lens matrix at corresponding positions for several times, different projection patterns are projected, and different projection patterns are projected continuously to form an animation; wherein, the Bluetooth chip processing module is also electrically connected to the LED light source matrix, and the Bluetooth chip processing module simultaneously performs algorithm processing on the digital audio, and collects the key values ​​of the spectrum and energy according to the processed data, which are used as the control of the switch and grayscale adjustment of each LED lamp bead in the LED light source matrix, thereby achieving the effect of lighting up or turning off the corresponding LED lamp bead to project different projection patterns, thereby achieving the effect of presenting the linkage between music and animation.

[0006] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the Bluetooth chip processing module decodes the digital audio, obtains the DAC data stream inside the Bluetooth chip processing module after decoding, performs FFT operation on the DAC data stream, calculates the spectrum characteristic value of the digital audio, and then outputs PWM to adjust the pulse width according to the energy push of each frequency band of the digital audio to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix.

[0007] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the Bluetooth chip processing module includes: a Bluetooth chip U1, a crystal oscillator Y1, and a capacitor C4; the seventeenth pin of the Bluetooth chip U1 is connected to the first pin of the crystal oscillator Y1, the second pin of the crystal oscillator Y1 is connected to the eighteenth pin of the Bluetooth chip U1, one end of the capacitor C4 is connected to the thirty-first pin of the Bluetooth chip U1, and the other end of the capacitor C4 is connected to the thirty-second pin of the Bluetooth chip U1.

[0008] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the sound source input module is one or more of the Bluetooth antenna audio input, the TF card audio input, and the AUX audio input; the Bluetooth antenna audio input includes: a Bluetooth antenna BT_ANT, and a capacitor C1, one end of the capacitor C1 is connected to the Bluetooth antenna BT_ANT, and the other end of the capacitor C1 is connected to the sixteenth pin of the Bluetooth chip U1, the twenty-second pin of the Bluetooth chip U1 is the Bluetooth indicator light control pin, which is used to control the Bluetooth indicator light and display the Bluetooth connection status; the TF card audio input is respectively connected to the nineteenth pin, the twentieth pin and the twenty-first pin of the Bluetooth chip U1; the AUX audio input is respectively connected to the fourth pin, the fifth pin and the twenty-eighth pin of the Bluetooth chip U1.

[0009] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the power amplifier module includes: a digital audio power amplifier and a speaker; one end of the digital audio power amplifier is respectively connected to the first pin and the second pin of the Bluetooth chip, and the other end of the digital audio power amplifier is connected to the speaker. The Bluetooth chip U1 processes the digital audio and transmits it to the digital audio power amplifier. The digital audio power amplifier outputs the amplified audio signal to the speaker, and the speaker outputs the sound to the outside world; the 30th pin of the Bluetooth chip U1 is a mute pin, which is used to put the internal audio path of the Bluetooth chip U1 into a mute state, organize the output of the audio signal, and avoid generating sound.

[0010] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the sound and light linkage control system of the speaker projection lamp also includes: a switch K5, one end of the switch K5 is connected to the fifteenth pin of the Bluetooth chip U1, and the other end of the switch K5 is connected to the ground, and the switch K5 is used to control the switch of the sound and light linkage control system of the speaker projection lamp.

[0011] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the sound and light linkage control system of the speaker projection lamp also includes: a power supply module, the power supply module includes: a battery, a battery interface BATT, a capacitor C3, a capacitor C6, and a capacitor C19; the battery is connected to the interface BATT, the first pin of the battery interface BATT is connected to the ground, the second pin of the battery interface BATT is respectively connected to the LED light source matrix, the tenth pin of the Bluetooth chip U1 and one end of the capacitor C19, one end of the capacitor C6 is connected to the eleventh pin of the Bluetooth chip U1, one end of the capacitor C3 is connected to one end of the Bluetooth chip U1, and the other ends of the capacitor C3, the capacitor C6 and the capacitor C19 are all connected to the ground; the seventh pin of the Bluetooth chip U1 is a battery status monitoring pin, and the seventh pin of the Bluetooth chip U1 detects the connection status of the battery through the power supply module, so that the Bluetooth chip U1 can make adjustments according to the battery condition.

[0012] As a preferred solution for the sound and light linkage control system of the speaker projector lamp, the sound and light linkage control system of the speaker projector lamp also includes: a USB charging module, which is respectively connected to the twenty-third pin and the twenty-fourth pin of the Bluetooth chip U1; the thirteenth pin of the Bluetooth chip U1 is a battery power monitoring pin, and the thirteenth pin of the Bluetooth chip U1 obtains the remaining battery power information of the battery through the power module, so that the USB charging module can manage the charging of the battery through the Bluetooth chip U1, and the Bluetooth chip U1 can provide a low battery prompt; the third pin of the Bluetooth chip is a power enable pin, which turns on or off the power supply of the Bluetooth chip U1 through an external control signal to realize a low power control function.

[0013] As a preferred solution for the sound and light linkage control system of the speaker projection lamp, the LED light source matrix includes: a power conversion chip U3, a resistor R3, a resistor R4, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R16, a resistor R17, a resistor R21, a resistor R22, a resistor R24, a resistor R26, a resistor R28, a resistor R30, a resistor R33, a resistor R34, a capacitor C2, a capacitor C5, a capacitor C8, a capacitor C17, a capacitor C18, an inductor L1, a MOS tube Q1, a MOS tube Q2, a MOS tube Q3, a MOS tube Q4, a MOS tube Q5, a MOS tube Q6, a lamp bead LED1, a lamp bead LED2, a lamp bead LED3, a lamp bead LED4, a lamp bead LED5, and a lamp bead LED6;

[0014] A first pin of the power conversion chip U3 is connected to one end of the capacitor C2, a second pin of the power conversion chip U3 is respectively connected to one end of the resistor R33 and ground, a third pin of the power conversion chip U3 is respectively connected to the other end of the resistor R33, one end of the resistor R34 and one end of the capacitor C5, a fourth pin of the power conversion chip U3 is respectively connected to one end of the resistor R3 and one end of the resistor R4, the other end of the resistor R3 is respectively connected to one end of the capacitor C8 and ground, the other end of the resistor R4 is connected to the sixth pin of the Bluetooth chip U1, a fifth pin of the power conversion chip U3 is respectively connected to the second pin of the battery interface BATT and the other end of the capacitor C8, and a sixth pin of the power conversion chip U3 is respectively connected to the other end of the capacitor C2 and one end of the inductor L1;

[0015] The other end of the inductor L1 is respectively connected to the other end of the resistor R34, the other end of the capacitor C5, one end of the capacitor C17, one end of the resistor C18, one end of the lamp bead LED1, one end of the lamp bead LED2, one end of the lamp bead LED3, one end of the lamp bead LED4, one end of the lamp bead LED5 and one end of the lamp bead LED6. The other end of the capacitor C17 and the other end of the capacitor C18 are both connected to the ground. The source of the MOS tube Q1 is respectively connected to one end of the resistor R10 and the ground. The drain of the MOS tube Q1 is connected to the other end of the lamp bead LED1. The gate of the MOS tube Q1 is connected to the other end of the resistor R10 and one end of the R28 respectively, the other end of the resistor R28 is connected to the fourteenth pin of the Bluetooth chip U1, the source of the MOS tube Q2 is connected to one end of the resistor R9 and the ground respectively, the drain of the MOS tube Q2 is connected to the other end of the lamp bead LED2, the gate of the MOS tube Q2 is connected to the other end of the resistor R9 and one end of the R26 respectively, the other end of the R26 is connected to the ninth pin of the Bluetooth chip U1, the source of the MOS tube Q3 is connected to one end of the resistor R11 and the ground respectively, the drain of the MOS tube Q3 is connected to the other end of the resistor R11 and the ground respectively. The gate of the MOS tube Q3 is connected to the other end of the lamp bead LED3, the gate of the MOS tube Q3 is respectively connected to the other end of the resistor R11 and one end of the R30, the other end of the R30 is connected to the eighth pin of the Bluetooth chip U1, the source of the MOS tube Q4 is respectively connected to one end of the resistor R12 and the ground, the drain of the MOS tube Q4 is connected to the other end of the lamp bead LED4, the gate of the MOS tube Q2 is respectively connected to the other end of the resistor R12 and one end of the R21, the other end of the R21 is connected to the twenty-seventh pin of the Bluetooth chip U1, the source of the MOS tube Q5 is respectively connected to the resistor R16 One end of the MOS tube Q6 is connected to the ground, the drain of the MOS tube Q5 is connected to the other end of the lamp bead LED5, the gate of the MOS tube Q5 is respectively connected to the other end of the resistor R16 and one end of the R22, the other end of the R22 is connected to the 26th pin of the Bluetooth chip U1, the source of the MOS tube Q6 is respectively connected to one end of the resistor R17 and the ground, the drain of the MOS tube Q6 is connected to the other end of the lamp bead LED6, the gate of the MOS tube Q6 is respectively connected to the other end of the resistor R17 and one end of the R24, and the other end of the R24 is connected to the 25th pin of the Bluetooth chip U1;

[0016] The twenty-ninth pin of the Bluetooth chip U1 is an analog input and output pin, which is used to control the on and off of each LED lamp bead in the LED light source matrix through PWM analog dimming.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a sound and light linkage control system for a speaker projector lamp, comprising: a projection lamp module, a sound source input module, a Bluetooth chip processing module electrically connected to the sound source input module, and a power amplifier module electrically connected to the Bluetooth chip processing module. The Bluetooth chip processing module processes digital audio input by the sound source input module and transmits the processed data to the power amplifier module. The processed data is converted into sound by the power amplifier module and output to the outside. The projection lamp module comprises: an LED light source matrix, a lens matrix, a projection sheet matrix, and a projection lens matrix. The LED light source matrix comprises a plurality of LED lamp beads. Light emitted by each LED lamp bead sequentially passes through the lens matrix, projection sheet matrix, and projection lens matrix at a corresponding position to project a different projection pattern. The different projection patterns are projected continuously to form an animation. The Bluetooth chip processing module is also electrically connected to the LED light source matrix. The Bluetooth chip processing module simultaneously performs algorithmic processing on the digital audio. Based on the processed data, it collects key values ​​of spectrum and energy, which are used to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix, thereby achieving the effect of lighting or turning off the corresponding LED lamp bead to project different projection patterns, thereby achieving the effect of presenting the linkage between music and animation. Using the above solution, the Bluetooth chip processing module controls the lighting of each LED lamp bead according to the processing results after processing the digital audio. The continuous lighting of the LED lamp beads projects a coherent projection pattern to form an animation, so that the lighting rhythm of each LED lamp bead in the LED light source matrix matches the rhythm of the music. After passing through the matrix optical imaging system, a coherent key frame projection pattern is projected to form an animation, ultimately presenting a combination of music and animation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, and all of them fall within the scope of protection of the present invention. Among them:

[0020] Figure 1 This is a schematic diagram of the principle of the sound and light linkage control system of the speaker projection lamp shown in the present invention;

[0021] Figure 2 yes Figure 1 The circuit diagram of the Bluetooth chip processing module, Bluetooth antenna audio input, switch K5, and power module of the sound and light linkage control system of the speaker and projector lamp shown;

[0022] Figure 3 yes Figure 2The circuit diagram of the LED light source matrix of the sound and light linkage control system of the speaker projection lamp is shown. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, rotatable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] The speaker is the terminal of the entire music playback system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into the space. It is an extremely important component of the music playback system because it bears the critical task of converting electrical signals into sound signals for the user to directly listen to. Speakers have a wide range of applications and are widely used in various occasions. Traditional speakers only play music and are obviously unable to meet the diverse needs of modern society. Therefore, people have combined speakers with projectors. While the speakers play music, the projectors can also project patterns onto the outside world, thus meeting the diverse needs of people who want to listen to music while viewing the projected patterns. However, first, the projected patterns cannot change, or can only be changed with simple rotation, resulting in a relatively rigid pattern that cannot meet people's growing needs. Second, the speaker and projection functions of the speaker projector lamp operate independently and cannot form a coordinated function. This results in a simple functional combination of speaker projectors and a lack of a dynamic whole, thus reducing the user experience.

[0026] like Figure 1 、 Figure 2 and Figure 3As shown, an embodiment of the present invention provides a sound and light linkage control system for a speaker projector lamp, which includes: a projector lamp module 10, a sound source input module 20, a Bluetooth chip processing module 30 electrically connected to the sound source input module 20, a power amplifier module 40 electrically connected to the Bluetooth chip processing module 30, a switch K5 50 electrically connected to the Bluetooth chip processing module 30, a power module 60 electrically connected to the projector lamp module 10 and the Bluetooth chip processing module 30 respectively, and a USB charging module 70 electrically connected to the Bluetooth chip processing module 30;

[0027] The Bluetooth chip processing module 30 processes the digital audio input by the sound source input module 20 and transmits the processed data to the power amplifier module 40. The processed data is converted into sound by the power amplifier module 40 and output to the outside world. The projection lamp module 10 includes: an LED light source matrix 11, a lens matrix 12, a projection film matrix 13, and a projection lens matrix 14. The LED light source matrix 11 includes a plurality of LED lamp beads. The light emitted by each LED lamp bead sequentially passes through the lens matrix 12, the projection film matrix 13 and the projection lens matrix 14 at the corresponding position to project different projection patterns. The different projection patterns are projected coherently to form an animation. The switch K5 50 is used to control the switch of the sound and light linkage control system of the speaker projection lamp. The power module 60 supplies power to the sound and light linkage control system of the speaker projection lamp. The USB charging module 70 charges the power module 60.

[0028] Among them, the Bluetooth chip processing module 30 is also electrically connected to the LED light source matrix 11. The Bluetooth chip processing module 30 simultaneously performs algorithmic processing on the digital audio, and collects the key values ​​of the spectrum and energy according to the processed data, which are used to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix 11, thereby achieving the effect of lighting up or turning off the corresponding LED lamp bead to project different projection patterns, thereby achieving the effect of presenting the linkage between music and animation.

[0029] In the present invention, the above-mentioned scheme is adopted. After processing the digital audio, the Bluetooth chip processing module 30 controls the lighting of each LED lamp bead according to the processing result. The continuous lighting of the LED lamp beads projects a coherent projection pattern to form an animation, so as to achieve the lighting rhythm of each LED lamp bead in the LED light source matrix 11 to match the rhythm of the music. After passing through the matrix optical imaging system, a coherent key frame projection pattern is projected to form an animation, and finally presents the combination effect of music and animation, thereby enhancing the user experience.

[0030] Specifically, the Bluetooth chip processing module 30 decodes the digital audio, obtains a DAC data stream after decoding, performs an FFT operation on the DAC data stream, calculates the spectral characteristic values ​​of the digital audio, and then outputs a PWM pulse width adjustment based on the energy of each frequency band of the digital audio to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix 11. In this way, the Bluetooth chip processing module 30 can control the LED light source matrix 11.

[0031] Furthermore, the Bluetooth chip processing module 30 includes: a Bluetooth chip U1, a crystal oscillator Y1, and a capacitor C4; the seventeenth pin of the Bluetooth chip U1 is connected to the first pin of the crystal oscillator Y1, the second pin of the crystal oscillator Y1 is connected to the eighteenth pin of the Bluetooth chip U1, one end of the capacitor C4 is connected to the thirty-first pin of the Bluetooth chip U1, and the other end of the capacitor C4 is connected to the thirty-second pin of the Bluetooth chip U1; wherein, the Bluetooth chip U1 is a core component, integrating multiple functional pins to realize audio processing, data transmission, power management and other functions; the crystal oscillator Y1 provides a stable clock signal for the Bluetooth chip U1, ensuring that the circuit inside the Bluetooth chip U1 operates according to precise timing, which is the basis for the normal operation of the Bluetooth chip U1; the function of the capacitor C4 is power decoupling, which is used to stabilize the power supply of the Bluetooth chip U1.

[0032] Furthermore, the audio source input module 20 is one or more of a Bluetooth antenna audio input 21, a TF card audio input 22, and an AUX audio input 23; the Bluetooth antenna audio input includes: a Bluetooth antenna BT_ANT, and a capacitor C1, one end of the capacitor C1 is connected to the Bluetooth antenna BT_ANT, and the other end of the capacitor C1 is connected to the sixteenth pin of the Bluetooth chip U1, the twenty-second pin of the Bluetooth chip U1 is a Bluetooth indicator light control pin, used to control the Bluetooth indicator light and display the Bluetooth connection status; the TF card audio input is respectively connected to the nineteenth pin, the twentieth pin and the twenty-first pin of the Bluetooth chip U1; the AUX audio input is respectively connected to the fourth pin, the fifth pin and the twenty-eighth pin of the Bluetooth chip U1.

[0033] Furthermore, the power amplifier module 40 includes: a digital audio power amplifier 41 and a speaker 42; one end of the digital audio power amplifier 41 is respectively connected to the first pin and the second pin of the Bluetooth chip, and the other end of the digital audio power amplifier 41 is connected to the speaker 42. The Bluetooth chip U1 transmits the digital audio after processing to the digital audio power amplifier 41, and the digital audio power amplifier 41 outputs the amplified audio signal to the speaker 42, and the speaker 42 outputs the sound to the outside world; the 30th pin of the Bluetooth chip U1 is a mute pin, which is used to make the internal audio path of the Bluetooth chip U1 in a mute state, organize the audio signal output, and avoid generating sound.

[0034] In order to control the switch of the sound and light linkage control system of the speaker projection lamp, one end of the switch K5 50 is connected to the fifteenth pin of the Bluetooth chip U1, and the other end of the switch K5 50 is connected to the ground. The switch K5 50 is used to control the switch of the sound and light linkage control system of the speaker projection lamp.

[0035] Furthermore, the power module 60 includes: a battery, a battery interface BATT, a capacitor C3, a capacitor C6, and a capacitor C19; the battery is connected to the interface BATT, the first pin of the battery interface BATT is connected to the ground, the second pin of the battery interface BATT is respectively connected to the LED light source matrix 11, the tenth pin of the Bluetooth chip U1 and one end of the capacitor C19, one end of the capacitor C6 is connected to the eleventh pin of the Bluetooth chip U1, one end of the capacitor C3 is connected to one end of the Bluetooth chip U1, and the other ends of the capacitor C3, the capacitor C6 and the capacitor C19 are all connected to the ground; the seventh pin of the Bluetooth chip U1 is a battery status monitoring pin, and the seventh pin of the Bluetooth chip U1 detects the connection status of the battery through the power module 60, so that the Bluetooth chip U1 can make adjustments according to the battery condition.

[0036] Furthermore, the USB charging module 70 is respectively connected to the twenty-third pin and the twenty-fourth pin of the Bluetooth chip U1; the thirteenth pin of the Bluetooth chip U1 is a battery power monitoring pin, and the thirteenth pin of the Bluetooth chip U1 obtains the remaining battery power information of the battery through the power module 60, so that the USB charging module 70 can manage the charging of the battery through the Bluetooth chip U1, and the Bluetooth chip U1 can provide a low battery prompt; the third pin of the Bluetooth chip is a power enable pin, which turns on or off the power supply of the Bluetooth chip U1 through an external control signal to realize a low power control function.

[0037] Furthermore, the LED light source matrix 11 includes: a power conversion chip U3, a resistor R3, a resistor R4, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R16, a resistor R17, a resistor R21, a resistor R22, a resistor R24, a resistor R26, a resistor R28, a resistor R30, a resistor R33, a resistor R34, a capacitor C2, a capacitor C5, a capacitor C8, a capacitor C17, a capacitor C18, an inductor L1, a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4, a MOS transistor Q5, a MOS transistor Q6, a lamp bead LED1, a lamp bead LED2, a lamp bead LED3, a lamp bead LED4, a lamp bead LED5, and a lamp bead LED6;

[0038] A first pin of the power conversion chip U3 is connected to one end of the capacitor C2, a second pin of the power conversion chip U3 is respectively connected to one end of the resistor R33 and ground, a third pin of the power conversion chip U3 is respectively connected to the other end of the resistor R33, one end of the resistor R34 and one end of the capacitor C5, a fourth pin of the power conversion chip U3 is respectively connected to one end of the resistor R3 and one end of the resistor R4, the other end of the resistor R3 is respectively connected to one end of the capacitor C8 and ground, the other end of the resistor R4 is connected to the sixth pin of the Bluetooth chip U1, a fifth pin of the power conversion chip U3 is respectively connected to the second pin of the battery interface BATT and the other end of the capacitor C8, and a sixth pin of the power conversion chip U3 is respectively connected to the other end of the capacitor C2 and one end of the inductor L1;

[0039] The other end of the inductor L1 is respectively connected to the other end of the resistor R34, the other end of the capacitor C5, one end of the capacitor C17, one end of the resistor C18, one end of the lamp bead LED1, one end of the lamp bead LED2, one end of the lamp bead LED3, one end of the lamp bead LED4, one end of the lamp bead LED5 and one end of the lamp bead LED6. The other end of the capacitor C17 and the other end of the capacitor C18 are both connected to the ground. The source of the MOS tube Q1 is respectively connected to one end of the resistor R10 and the ground. The drain of the MOS tube Q1 is connected to the other end of the lamp bead LED1. The gate of the MOS tube Q1 is connected to the other end of the resistor R10 and one end of the R28 respectively, the other end of the resistor R28 is connected to the fourteenth pin of the Bluetooth chip U1, the source of the MOS tube Q2 is connected to one end of the resistor R9 and the ground respectively, the drain of the MOS tube Q2 is connected to the other end of the lamp bead LED2, the gate of the MOS tube Q2 is connected to the other end of the resistor R9 and one end of the R26 respectively, the other end of the R26 is connected to the ninth pin of the Bluetooth chip U1, the source of the MOS tube Q3 is connected to one end of the resistor R11 and the ground respectively, the drain of the MOS tube Q3 is connected to the other end of the resistor R11 and the ground respectively. The gate of the MOS tube Q3 is connected to the other end of the lamp bead LED3, the gate of the MOS tube Q3 is respectively connected to the other end of the resistor R11 and one end of the R30, the other end of the R30 is connected to the eighth pin of the Bluetooth chip U1, the source of the MOS tube Q4 is respectively connected to one end of the resistor R12 and the ground, the drain of the MOS tube Q4 is connected to the other end of the lamp bead LED4, the gate of the MOS tube Q2 is respectively connected to the other end of the resistor R12 and one end of the R21, the other end of the R21 is connected to the twenty-seventh pin of the Bluetooth chip U1, the source of the MOS tube Q5 is respectively connected to the resistor R16 One end of the MOS tube Q6 is connected to the ground, the drain of the MOS tube Q5 is connected to the other end of the lamp bead LED5, the gate of the MOS tube Q5 is respectively connected to the other end of the resistor R16 and one end of the R22, the other end of the R22 is connected to the 26th pin of the Bluetooth chip U1, the source of the MOS tube Q6 is respectively connected to one end of the resistor R17 and the ground, the drain of the MOS tube Q6 is connected to the other end of the lamp bead LED6, the gate of the MOS tube Q6 is respectively connected to the other end of the resistor R17 and one end of the R24, and the other end of the R24 is connected to the 25th pin of the Bluetooth chip U1;

[0040] The twenty-ninth pin of the Bluetooth chip U1 is an analog input and output pin, which controls the on and off of each LED lamp bead in the LED light source matrix 11 through PWM analog dimming.

[0041] The present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and the changes still fall within the scope of protection of the present invention.

Claims

1. A sound and light linkage control system for a speaker and projection lamp, characterized in that: include: A projection lamp module, a sound source input module, a Bluetooth chip processing module electrically connected to the sound source input module, and a power amplifier module electrically connected to the Bluetooth chip processing module. The Bluetooth chip processing module processes the digital audio input by the sound source input module and transmits the processed data to the power amplifier module. The processed data is converted into sound by the power amplifier module and output to the outside world. The projection lamp module includes: an LED light source matrix, a lens matrix, a projection film matrix, and a projection lens matrix. The LED light source matrix includes a plurality of LED lamp beads. The light emitted by each LED lamp bead sequentially passes through the lens matrix, the projection film matrix, and the projection lens matrix at a corresponding position to project a different projection pattern. The different projection patterns are projected continuously to form an animation. Among them, the Bluetooth chip processing module is also electrically connected to the LED light source matrix. The Bluetooth chip processing module simultaneously performs algorithmic processing on the digital audio, and collects the key values ​​of the spectrum and energy according to the processed data, which are used to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix, thereby achieving the effect of lighting up or turning off the corresponding LED lamp bead to project different projection patterns, thereby achieving the effect of presenting the linkage between music and animation.

2. The sound and light linkage control system of the speaker and projection lamp according to claim 1, characterized in that: The Bluetooth chip processing module decodes the digital audio, obtains the DAC data stream inside the Bluetooth chip processing module after decoding, performs FFT operation on the DAC data stream, calculates the spectrum characteristic value of the digital audio, and then outputs PWM to adjust the pulse width according to the energy drive of each frequency band of the digital audio to control the switching and grayscale adjustment of each LED lamp bead in the LED light source matrix.

3. The sound and light linkage control system of the speaker and projection lamp according to claim 1, characterized in that: The Bluetooth chip processing module includes: Bluetooth chip U1, crystal oscillator Y1, and capacitor C4; The seventeenth pin of the Bluetooth chip U1 is connected to the first pin of the crystal oscillator Y1, the second pin of the crystal oscillator Y1 is connected to the eighteenth pin of the Bluetooth chip U1, one end of the capacitor C4 is connected to the thirty-first pin of the Bluetooth chip U1, and the other end of the capacitor C4 is connected to the thirty-second pin of the Bluetooth chip U1.

4. The sound and light linkage control system of the speaker and projector lamp according to claim 3, characterized in that: The audio source input module is one or more of a Bluetooth antenna audio input, a TF card audio input, and an AUX audio input; The Bluetooth antenna audio input includes: a Bluetooth antenna BT_ANT, and a capacitor C1, one end of the capacitor C1 is connected to the Bluetooth antenna BT_ANT, and the other end of the capacitor C1 is connected to the sixteenth pin of the Bluetooth chip U1, and the twenty-second pin of the Bluetooth chip U1 is a Bluetooth indicator light control pin, which is used to control the Bluetooth indicator light to display the Bluetooth connection status; The TF card audio input is connected to the 19th pin, the 20th pin and the 21st pin of the Bluetooth chip U1 respectively; The AUX audio input is connected to the fourth pin, the fifth pin and the twenty-eighth pin of the Bluetooth chip U1 respectively.

5. The sound and light linkage control system of the speaker and projection lamp according to claim 3, characterized in that: The power amplifier module includes: a digital audio power amplifier and a speaker; One end of the digital audio power amplifier is connected to the first pin and the second pin of the Bluetooth chip respectively, and the other end of the digital audio power amplifier is connected to the speaker. The Bluetooth chip U1 processes the digital audio and transmits it to the digital audio power amplifier. The digital audio power amplifier outputs the amplified audio signal to the speaker, and the speaker outputs the sound to the outside world. The 30th pin of the Bluetooth chip U1 is a mute pin, which is used to put the internal audio path of the Bluetooth chip U1 into a mute state, organize the output of the audio signal, and avoid generating sound.

6. The sound and light linkage control system of the speaker and projector lamp according to claim 3, characterized in that: The sound and light linkage control system of the speaker projector lamp further includes: a switch K5, one end of the switch K5 is connected to the fifteenth pin of the Bluetooth chip U1, and the other end of the switch K5 is connected to the ground, and the switch K5 is used to control the switch of the sound and light linkage control system of the speaker projector lamp.

7. The sound and light linkage control system of the speaker and projector lamp according to claim 3, characterized in that: The sound and light linkage control system of the speaker projection lamp further includes: a power module, the power module including: a battery, a battery interface BATT, a capacitor C3, a capacitor C6, and a capacitor C19; The battery is connected to the interface BATT, the first pin of the battery interface BATT is connected to the ground, the second pin of the battery interface BATT is respectively connected to the LED light source matrix, the tenth pin of the Bluetooth chip U1 and one end of the capacitor C19, one end of the capacitor C6 is connected to the eleventh pin of the Bluetooth chip U1, one end of the capacitor C3 is connected to one end of the Bluetooth chip U1, and the other ends of the capacitor C3, the capacitor C6 and the capacitor C19 are all connected to the ground; The seventh pin of the Bluetooth chip U1 is a battery status monitoring pin. The seventh pin of the Bluetooth chip U1 detects the connection status of the battery through the power module, so that the Bluetooth chip U1 can make adjustments according to the battery status.

8. The sound and light linkage control system of the speaker and projector lamp according to claim 7, characterized in that: The sound and light linkage control system of the speaker projection lamp further includes: a USB charging module, which is connected to the 23rd pin and the 24th pin of the Bluetooth chip U1 respectively; The thirteenth pin of the Bluetooth chip U1 is a battery power monitoring pin. The thirteenth pin of the Bluetooth chip U1 obtains the remaining battery power information of the battery through the power module, so that the USB charging module can manage the charging of the battery through the Bluetooth chip U1, and the Bluetooth chip U1 can provide a low battery prompt; The third pin of the Bluetooth chip is a power enable pin, which turns on or off the power supply of the Bluetooth chip U1 through an external control signal to achieve a low power consumption control function.

9. The sound and light linkage control system of the speaker and projector lamp according to claim 7, characterized in that: The LED light source matrix includes: a power conversion chip U3, a resistor R3, a resistor R4, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R16, a resistor R17, a resistor R21, a resistor R22, a resistor R24, a resistor R26, a resistor R28, a resistor R30, a resistor R33, a resistor R34, a capacitor C2, a capacitor C5, a capacitor C8, a capacitor C17, a capacitor C18, an inductor L1, a MOS tube Q1, a MOS tube Q2, a MOS tube Q3, a MOS tube Q4, a MOS tube Q5, a MOS tube Q6, a lamp bead LED1, a lamp bead LED2, a lamp bead LED3, a lamp bead LED4, a lamp bead LED5, and a lamp bead LED6; A first pin of the power conversion chip U3 is connected to one end of the capacitor C2, a second pin of the power conversion chip U3 is respectively connected to one end of the resistor R33 and ground, a third pin of the power conversion chip U3 is respectively connected to the other end of the resistor R33, one end of the resistor R34 and one end of the capacitor C5, a fourth pin of the power conversion chip U3 is respectively connected to one end of the resistor R3 and one end of the resistor R4, the other end of the resistor R3 is respectively connected to one end of the capacitor C8 and ground, the other end of the resistor R4 is connected to the sixth pin of the Bluetooth chip U1, a fifth pin of the power conversion chip U3 is respectively connected to the second pin of the battery interface BATT and the other end of the capacitor C8, and a sixth pin of the power conversion chip U3 is respectively connected to the other end of the capacitor C2 and one end of the inductor L1; The other end of the inductor L1 is respectively connected to the other end of the resistor R34, the other end of the capacitor C5, one end of the capacitor C17, one end of the resistor C18, one end of the lamp bead LED1, one end of the lamp bead LED2, one end of the lamp bead LED3, one end of the lamp bead LED4, one end of the lamp bead LED5 and one end of the lamp bead LED6. The other end of the capacitor C17 and the other end of the capacitor C18 are both connected to the ground. The source of the MOS tube Q1 is respectively connected to one end of the resistor R10 and the ground. The drain of the MOS tube Q1 is connected to the other end of the lamp bead LED1. The gate of the MOS tube Q1 is connected to the other end of the resistor R10 and one end of the R28 respectively, the other end of the resistor R28 is connected to the fourteenth pin of the Bluetooth chip U1, the source of the MOS tube Q2 is connected to one end of the resistor R9 and the ground respectively, the drain of the MOS tube Q2 is connected to the other end of the lamp bead LED2, the gate of the MOS tube Q2 is connected to the other end of the resistor R9 and one end of the R26 respectively, the other end of the R26 is connected to the ninth pin of the Bluetooth chip U1, the source of the MOS tube Q3 is connected to one end of the resistor R11 and the ground respectively, the drain of the MOS tube Q3 is connected to the other end of the resistor R11 and the ground respectively. The gate of the MOS tube Q3 is connected to the other end of the lamp bead LED3, the gate of the MOS tube Q3 is respectively connected to the other end of the resistor R11 and one end of the R30, the other end of the R30 is connected to the eighth pin of the Bluetooth chip U1, the source of the MOS tube Q4 is respectively connected to one end of the resistor R12 and the ground, the drain of the MOS tube Q4 is connected to the other end of the lamp bead LED4, the gate of the MOS tube Q2 is respectively connected to the other end of the resistor R12 and one end of the R21, the other end of the R21 is connected to the twenty-seventh pin of the Bluetooth chip U1, the source of the MOS tube Q5 is respectively connected to the resistor R16 One end of the MOS tube Q6 is connected to the ground, the drain of the MOS tube Q5 is connected to the other end of the lamp bead LED5, the gate of the MOS tube Q5 is respectively connected to the other end of the resistor R16 and one end of the R22, the other end of the R22 is connected to the 26th pin of the Bluetooth chip U1, the source of the MOS tube Q6 is respectively connected to one end of the resistor R17 and the ground, the drain of the MOS tube Q6 is connected to the other end of the lamp bead LED6, the gate of the MOS tube Q6 is respectively connected to the other end of the resistor R17 and one end of the R24, and the other end of the R24 is connected to the 25th pin of the Bluetooth chip U1; The twenty-ninth pin of the Bluetooth chip U1 is an analog input and output pin, which is used to control the on and off of each LED lamp bead in the LED light source matrix through PWM analog dimming.

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