Intelligent sound and light synchronous controller

Abstract

The intelligent sound and light synchronous controller comprises a power supply module, an audio input module, an audio processing module, a communication control module and an execution module, the power supply module is electrically connected with other modules and is used for converting external power supply into low-voltage working current of an internal circuit and supplying power to other working modules; a transmission port of the audio input module is electrically connected with the audio processing module and is used for receiving an audio signal; the audio processing module is used for extracting audio signals with different frequencies and transmitting the audio signals to the communication control module; the communication control module comprises a channel selection circuit and a relay circuit, and the channel selection circuit is used for receiving different external control signals and switching different relay circuit channels; and the execution module is used for transmitting a control signal so as to control flicker of an external lamp. According to the utility model, through arranging various frequency channels, music details can be accurately captured, and the accurate control requirement of light changing along with rhythm in a complex music scene can be satisfied.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent lighting control, in particular to an intelligent sound and light synchronization controller. Background Art

[0002] A sound and light synchronization controller is a controller that controls the change of lights by capturing audio signals to achieve the synchronization effect of music and lights. It is commonly used in scenarios such as home entertainment, commercial performances, and theme parks where stage lights and ambient lighting that require precise matching of the rhythms of musical instruments are needed. The traditional sound and light synchronization controller controls the output current of the transformer through an audio signal, thereby synchronously controlling music and lights. However, when dealing with musical instruments of various different frequency signals, due to the lack of a precise audio processing unit, the traditional sound and light synchronization controller cannot effectively distinguish different musical instruments in high, medium, and low frequencies. The traditional sound and light synchronization controller usually only has a single channel and lacks a multi-channel mode. These problems limit its performance in scenarios with high requirements for audio effects. The inaccurate audio recognition also leads to problems such as the lights not being able to precisely follow the music rhythm and frequent mis-touching and mis-triggering when using the traditional sound and light synchronization controller. At the same time, the traditional sound and light synchronization controller is difficult to collect signals in the low volume range, and the signals are prone to overload distortion in the high volume range, and it cannot meet the diverse requirements of sound and light synchronization performance in various current environments. Summary of the Utility Model

[0003] In view of the problem that the current lighting controller is not sensitive and timely in responding to music in each frequency band, the utility model proposes an intelligent sound and light synchronization controller, which can accurately distinguish the drum sounds of different frequency band timbres while optimizing the signal acquisition method, meeting the requirements of different lights responding to different music in various environments.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An intelligent sound and light synchronization controller, comprising:

[0006] A power supply module, an audio input module, an audio processing module, a communication control module, and an execution module;

[0007] The power supply module is electrically connected to other modules. The power supply module is used to convert external power supply into the low-voltage working current of the internal circuit and supply power to other working modules;

[0008] The transmission port of the audio input module is electrically connected to the audio processing module. The audio input module is used to receive audio signals from the outside and transmit the audio signals to the audio processing module;

[0009] The audio processing module is used to extract audio signals of different frequencies and transmit them to the communication control module;

[0010] The communication control module includes a channel selection circuit and a relay circuit. The channel selection circuit is used to receive different external control signals and switch different relay circuits;

[0011] The execution module is connected to an external lamp. The execution module is used to transmit the control signal from the communication control module to control the flashing of the external lamp.

[0012] The audio processing module includes a high-pass circuit, a low-pass circuit and a mixing circuit. The high-pass circuit is used to extract and process high-frequency signals. The low-pass circuit is used to extract and process low-frequency signals. The mixing circuit is used to mix and process the audio signals of the left and right channels and generate a mixed signal.

[0013] The relay circuit includes a low-pass relay, a high-pass relay and a mixing relay. The low-pass relay is electrically connected to the low-pass circuit. The high-pass relay is electrically connected to the high-pass circuit. The mixing relay is electrically connected to the mixing circuit.

[0014] The communication control module further includes a power amplifier module. One end of the power amplifier module is connected to the relay circuit, and the other end is connected to the audio processing module. The power amplifier module is used to receive the processed audio signal, amplify the signal and output it to the relay circuit.

[0015] The audio input module includes a Bluetooth circuit and a TRS interface circuit. The Bluetooth circuit is used to receive external wireless audio signals. The TRS interface circuit is used to receive external wired audio signals.

[0016] The intelligent audio-light synchronization controller further includes an overheat protection module. The overheat protection module is used to cut off the power supply of the relay to protect the circuit when the circuit overheats.

[0017] The execution module includes an isolation transformer. The isolation transformer is used to prevent external high-voltage current from contacting the internal circuit.

[0018] A sensitivity potentiometer is provided on the power amplifier module.

[0019] A frequency potentiometer is provided on the low-pass circuit.

[0020] The beneficial effects of the present utility model are as follows: By setting various audio recognition channels with different frequencies, the present utility model greatly improves the recognition ability of complex music elements, thereby accurately capturing music signals of various frequencies and realizing real-time response of lights to music signals. At the same time, the present utility model can switch the channel frequency band mode of the output music signal to meet the precise control requirements of lights changing with the rhythm in complex music scenes. Description of the Drawings

[0021] Figure 1Schematic diagram of signal transmission between modules of the present utility model.

[0022] Figure 2 Schematic diagram of the power supply relationship of the present utility model.

[0023] Figure 3 Circuit diagram of the switching power supply.

[0024] Figure 4 Circuit diagram of the buck circuit.

[0025] Figure 5 Circuit diagram of the Bluetooth circuit.

[0026] Figure 6 Circuit diagram of the TRS interface.

[0027] Figure 7 Circuit diagram of the low-pass circuit.

[0028] Figure 8 Circuit diagram of the high-pass circuit.

[0029] Figure 9 Circuit diagram of the channel selection circuit part.

[0030] Figure 10 Circuit diagram of the relay circuit.

[0031] Figure 11 Circuit diagram of the power amplifier module.

[0032] Figure 12 Circuit diagram of the execution module.

[0033] Figure 13 Circuit diagram of the overheat protection module.

[0034] In the figure: 100, power supply module; 110, switching power supply circuit; 120, buck circuit; 200, audio input module; 210, Bluetooth circuit; 220, TRS interface circuit; 300, audio processing module; 310, low-pass circuit; 311, frequency potentiometer; 320, high-pass circuit; 330, mixing circuit; 400, communication control module; 410, channel selection circuit; 420, relay circuit; 421, low-pass relay group; 422, high-pass relay group; 423, mixing relay group; 500, power amplifier module; 510, sensitivity potentiometer; 600, execution module; 700, overheat protection module. Specific embodiments

[0035] The present utility model will be described in detail below with reference to the accompanying drawings.

[0036] As Figure 1, An intelligent audio-light synchronization controller, including a power supply module 100, an audio input module 200, an audio processing module 300, a communication control module 400, a power amplifier module 500, and an execution module 600. The power supply module 100 is used to supply power to other modules. The audio input module 200 is used to receive external audio signals. After receiving the signals input from the audio input module 200, the audio processing module 300 processes audio signals of different frequencies and then outputs them to the communication control module 400. A channel selection circuit 410 and a relay circuit 420 are provided in the communication control module 400. Users can select a specified relay group through the channel selection circuit 410 and output the corresponding audio signals to the corresponding relay group. The power amplifier module 500 is used to further amplify the relay signals and output them to the execution module 600, and the execution module 600 controls the lamps to achieve the effect of the lamps flashing with the music frequency.

[0037] As Figures 2 to 4 , The utility model adopts a bipolar power supply architecture. Specifically, the power supply module 100 includes a switching power supply circuit 110 and a step-down circuit 120, which supply power to modules or circuits with different power consumption requirements respectively. The switching power supply circuit 110 is used to convert external alternating current into 12V direct current and supply power to the low-pass circuit 310. The step-down circuit 120 is electrically connected to the switching power supply circuit 110 and generates 5V power supply through two 7805 voltage regulators provided therein, so as to supply power to low-voltage electrical appliances such as the Bluetooth circuit 210, the TRS interface circuit 220, the high-pass circuit 320, the mixing circuit 330, the power amplifier module 500, the overheat protection module 700, the single-chip microcomputer in the channel selection circuit 410, and each relay in the relay circuit 420. The execution module 600 is directly powered by an external alternating current power supply.

[0038] As Figure 5 , Figure 6 , The audio input module 200 includes a Bluetooth circuit 210 and a TRS interface circuit 220. The Bluetooth circuit 210 is used to receive externally wirelessly transmitted audio signals, such as audio signals obtained by receiving through a mobile phone. The TRS interface circuit 220 is used to receive externally wired-transmitted audio signals. In addition, the TRS interface circuit 220 can also be wired-connected to other controllers to achieve richer lighting effects. In the utility model, the TRS interface circuit 220 is provided with at least two AUX interfaces, which can simultaneously receive left and right channel audio signals transmitted by wire.

[0039] As Figure 7 , Figure 8 , Figure 10, the audio processing module 300 includes a low-pass circuit 310, a high-pass circuit 320, and a mixing circuit 330. The low-pass circuit 310 corresponds to the bass drum mode and is used to collect the drumbeat audio with a lower frequency. The high-pass circuit 320 corresponds to the cymbal mode and is used to collect the audio of high-frequency percussion instruments. The mixing circuit 330 corresponds to the snare drum mode and is used to collect the background audio with a moderate frequency and a mixed timbre. Among them, the low-pass circuit 310 uses a filter circuit composed of operational amplifiers to filter out the low-frequency signals including the bass drum signals from the audio signals. The high-pass circuit 320 uses an RC filter circuit to achieve a high-pass effect to screen out the high-frequency signal part in the collected audio. The mixing circuit 330 is mainly composed of two resistors and can mix the two-channel audio signals of the left and right channels to obtain a mixed audio signal. By setting the recognition channels for the bass drum, snare drum, and cymbal, the present utility model greatly improves the recognition ability of complex music elements, enabling it to be applied in various complex audio background environments.

[0040] As Figure 9 , Figure 10 , the communication control module 400 includes a channel selection circuit 410 and a relay circuit 420. The channel selection circuit 410 includes a main control single-chip microcomputer. The user can output a control signal to the main control single-chip microcomputer through an external button to control different relay groups in the relay circuit 420, thereby realizing the switching of different lighting modes. The relay circuit 420 includes a low-pass relay group 421, a high-pass relay group 422, and a mixing relay group 423. When the user selects the bass drum mode, the P1.1 interface of the main control single-chip microcomputer outputs a signal, and at this time, the low-pass relay group 421 works and outputs the low-frequency bass drum audio signal transmitted from the low-pass circuit 310. When the user selects the cymbal mode, the P1.3 interface of the main control single-chip microcomputer outputs a signal, and at this time, the high-pass relay group 422 works and outputs the high-frequency cymbal audio signal transmitted from the high-pass circuit 320. When the user selects the mixing mode, the P1.2 interface of the main control single-chip microcomputer outputs a signal, and at this time, the mixing relay group 423 works and outputs the mixed snare drum audio signal transmitted from the mixing circuit 330. To make the switching of various modes more intuitive and visual, the main control single-chip microcomputer is also connected to indicator lights, namely LED1, LED2, and LED3. When the user selects the bass drum mode, LED1 lights up. Similarly, when the user selects the cymbal mode and the snare drum mode, the corresponding LED3 and LED2 are lit. By setting the digital selection channels, the present utility model optimizes the audio processing channels, ensuring that the corresponding audio can be transmitted to the corresponding audio processing channels in the first time and improving the overall operation efficiency.

[0041] As Figure 11, the power amplifier module 500 adopts a Class-D digital power amplifier design. After receiving various audio signals transmitted from the low-pass relay group 421, the high-pass relay group 422, or the hybrid relay group 423, the power amplifier module 500 amplifies the various signals through the integrated power amplifier chip and transmits them to the execution module 600 to drive the execution module 600 to work. The setting of the power amplifier module 500 makes the fluctuations of various audio signals received by the lamp more obvious, which is more conducive to the lamp to sense the changes in the music rhythm, so that the lamp can accurately flash with the music rhythm.

[0042] As Figure 12 , the execution module 600 includes a thyristor switch circuit, and an isolation transformer is provided inside the thyristor switch circuit, which can prevent the external high voltage from contacting the internal drive circuit and play a safety protection role. The execution module 600, as the final execution end for driving the light, is used to receive the signals amplified and processed by the power amplifier module 500 to realize the control of the lamp, so that the lamp flashes with the music rhythm.

[0043] As Figure 11 , the present utility model also provides a sensitivity potentiometer 510, which is arranged inside the power amplifier module 500. For low-decibel audio signals that are difficult to extract signals, the user can rotate this potentiometer to increase the sensitivity of the controller to better capture signals. At the same time, by adjusting this potentiometer, the brightness of the lamp in the flashing state can be controlled to a certain extent by controlling the current within a certain range, so as to enhance the diversity of the lighting effects in various scenarios.

[0044] As Figure 7 , the present utility model provides a frequency potentiometer 311, which is arranged inside the low-pass circuit 310 of the audio processing module 300. Since the timbres and frequencies of different drum types are different, setting only one frequency acquisition range cannot adapt to most drum types, thus reducing the applicable range of the controller. After setting the frequency potentiometer, the user can adjust this potentiometer to adjust the frequency acquisition range, and then adapt to various drum types to expand the applicable range of the present utility model.

[0045] As Figure 13 , the present utility model also provides an overheat protection module 700. The overheat protection module 700 uses LM393 as the main control chip, triggers protection when the circuit overheats, and cuts off the power supply of the relay to protect the circuit. At the same time, when the overheat protection is triggered, the indicator light LED4 will light up to prompt the user that the controller is overheated at this time and needs to be repaired, and it is not suitable to turn on the machine again. By adding the overheat protection safety protection measures, the safety risk of the product is effectively reduced, and the safe use of the product in various environments is guaranteed.

[0046] The above content describes the specific features, usage methods, and advantages of the present utility model. It should be noted that the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model. The protection scope required by the present utility model is defined by the claims and their equivalents.

Claims

1. An intelligent sound and light synchronization controller, characterized in that: include: Power module, audio input module, audio processing module, communication control module and execution module; The power supply module is electrically connected to other modules, and is used to convert external power supply into a low-voltage working current for the internal circuit and to supply power to other working modules; The transmission port of the audio input module is electrically connected to the audio processing module, and the audio input module is used to receive an audio signal from the outside and transmit the audio signal to the audio processing module; The audio processing module is used to extract audio signals of different frequencies and transmit them to the communication control module; The communication control module includes a channel selection circuit and a relay circuit, wherein the channel selection circuit is used to receive different external control signals and switch different relay circuits; The execution module is used to connect with the external lamp, and the execution module is used to transmit the control signal from the communication control module to control the flashing of the external lamp.

2. The intelligent sound and light synchronization controller according to claim 1, characterized in that: The audio processing module includes a high-pass circuit, a low-pass circuit and a mixing circuit. The high-pass circuit is used to extract and process high-frequency signals, the low-pass circuit is used to extract and process low-frequency signals, and the mixing circuit is used to mix and process audio signals of left and right channels and generate a mixed signal.

3. The intelligent sound and light synchronization controller according to claim 2, characterized in that: The relay circuit includes a low-pass relay, a high-pass relay and a hybrid relay. The low-pass relay is electrically connected to the low-pass circuit, the high-pass relay is electrically connected to the high-pass circuit, and the hybrid relay is electrically connected to the hybrid circuit.

4. The intelligent sound and light synchronization controller according to claim 1, characterized in that: The intelligent audio-visual synchronization controller also includes a power amplifier module, one end of which is connected to the relay circuit, and the other end of which is connected to the execution module. The power amplifier module is used to amplify the control signal from the relay and drive the execution module to work.

5. The intelligent sound and light synchronization controller according to claim 1, characterized in that: The audio input module comprises a Bluetooth circuit and a TRS interface circuit, wherein the Bluetooth circuit is used to receive an external wireless audio signal, and the TRS interface circuit is used to receive an external wired audio signal.

6. The intelligent sound and light synchronization controller according to claim 1, characterized in that: The intelligent audio-visual synchronization controller also includes an overheat protection module, which is used to cut off the power supply of the relay to protect the circuit when the circuit is overheated.

7. The intelligent sound and light synchronization controller according to claim 1, characterized in that: The execution module includes an isolation transformer, which is used to prevent external high-voltage current from contacting the internal circuit.

8. The intelligent sound and light synchronization controller according to claim 4, characterized in that: The power amplifier module is provided with a sensitivity potentiometer.

9. The intelligent sound and light synchronization controller according to claim 2, characterized in that: The low-pass circuit is provided with a frequency potentiometer.

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