Wireless intelligent sound system

Abstract

The utility model discloses a wireless intelligent sound system, which comprises a central processing unit, a power management module, a Bluetooth module, a WIFI module, a storage module, an analog-to-digital converter, a power amplifier, an audio processor, a microphone, a loudspeaker, an intelligent home wireless module and a voice control chip, wherein the central processing unit is connected with the power management module, the Bluetooth module, the WIFI module, the storage module, the analog-to-digital converter, the power amplifier, the audio processor, the microphone, the loudspeaker, the smart home wireless module and the voice control chip, and the WIFI module is connected with the Bluetooth module and the smart home wireless module. The audio processor is respectively connected with the analog-to-digital converter and the power amplifier, and the microphone is respectively connected with the loudspeaker and the voice control chip. According to the utility model, through cooperation of the central processor and the intelligent household wireless module, the processing performance and the intelligent degree of the wireless intelligent sound system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and in particular to a wireless intelligent audio system. Background Art

[0002] With the improvement of people's living standards, the audio industry has also flourished, resulting in the continuous expansion of domestic audio market demand and higher requirements of consumers for audio products. However, the audio products currently on the market still have problems of single function and insufficient performance, and they have gradually been unable to meet the needs of users for audio products. At the same time, the existing audio systems are not intelligent enough and have not been able to well integrate smart home control into the corresponding audio systems. In the existing audio systems, the processing performance of the main processor fails to meet the high requirements of intelligent control, resulting in the unsmooth use of the audio system functions and slow response to the commands issued by the user. In addition, the current audio systems still have problems with poor wireless signal stability and anti-interference. The above technical problems need to be overcome to bring consumers a better user experience, thereby improving competitiveness in the audio product market. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a wireless intelligent audio system, which improves the processing performance and intelligence of the wireless intelligent audio system through the cooperation of a central processor and a smart home wireless module, and optimizes the intelligent control of the audio system.

[0004] The utility model provides a wireless intelligent audio system, which includes: a central processing unit, a power management module, a Bluetooth module, a WIFI module, a storage module, an analog-to-digital converter, a power amplifier, an audio processor, a microphone, a speaker, a smart home wireless module and a voice control chip, wherein:

[0005] The central processing unit is respectively connected to the power management module, Bluetooth module, WIFI module, storage module, analog-to-digital converter, power amplifier, audio processor, microphone, speaker, smart home wireless module and voice control chip; the WIFI module is respectively connected to the Bluetooth module and the smart home wireless module; the audio processor is respectively connected to the analog-to-digital converter and the power amplifier; and the microphone is respectively connected to the speaker and the voice control chip.

[0006] Optionally, the central processing unit includes an MT8518S main chip and an STM32G030 microprocessor, and the MT8518S main chip is connected to the STM32G030 microprocessor based on a UART serial port.

[0007] Optionally, the MT8518S main chip has a built-in quad-core A53 embedded microprocessor.

[0008] Optionally, the power management module adopts an MT6395A DC-DC conversion chip, a DIO54302 synchronous step-down DC-DC regulator and a SY8232I single-output step-down converter.

[0009] Optionally, the Bluetooth module and the WIFI module use an MT7921 chip, and the MT7921 chip is connected to the central processing unit based on a GPIO interface and an SDIO interface.

[0010] Optionally, the storage module adopts H5TC4GEFR-RDA512M double rate synchronous dynamic random access memory.

[0011] Optionally, the analog-to-digital converter adopts a TLV320ADC5120 audio analog-to-digital converter, and the TLV320ADC5120 audio analog-to-digital converter is connected to the central processing unit based on an I2S bus.

[0012] Optionally, the power amplifier adopts a TAS5825M stereo full-digital power amplifier, and the TAS5825M stereo full-digital power amplifier is connected to the central processing unit based on an I2S bus.

[0013] Optionally, the smart home wireless module adopts the CDZ-C2MG2-2100-00 smart home wireless module, and the CDZ-C2MG2-2100-00 smart home wireless module is connected to the WIFI module based on the GPIO interface.

[0014] Optionally, the wireless intelligent audio system also includes an RTL8201G port physical layer chip, and the RTL8201G port physical layer chip is connected to the central processing unit.

[0015] The utility model provides a wireless intelligent audio system. The central processor is formed by cooperating the MT8518S main chip and the STM32G030 microprocessor, which improves the processing performance of the wireless intelligent audio system and the accommodation of the smart home control function. The CDZ-C2MG2-2100-00 smart home wireless module realizes efficient control of the smart home, improves the intelligence of the audio system, utilizes the TLV320ADC5120 audio analog-to-digital converter and the TAS5825M stereo full-digital power amplifier to achieve high-quality sound effect playback, and provides a richer audio experience. At the same time, a voice control chip is used to realize the function control of the audio system through voice interaction, which can improve the user's audio experience and better meet the user's high requirements for intelligent audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the wireless intelligent audio system in the embodiment of the utility model;

[0018] Figure 2 It is a specific principle diagram of the wireless audio intelligent system in the embodiment of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The wireless intelligent audio system provided by the embodiment of the utility model is as follows: Figure 1 and Figure 2 As shown, Figure 1 The structure diagram of the wireless intelligent sound system in the embodiment of the utility model is shown. Figure 2 The specific schematic diagram of the wireless intelligent audio system in the embodiment of the utility model is shown, and the wireless intelligent audio system includes: a central processing unit, a power management module, a Bluetooth module, a WIFI module, a storage module, an analog-to-digital converter, a power amplifier, an audio processor, a microphone, a speaker, a smart home wireless module and a voice control chip, wherein: the central processing unit is respectively connected to the power management module, the Bluetooth module, the WIFI module, the storage module, the analog-to-digital converter, the power amplifier, the audio processor, the microphone, the speaker, the smart home wireless module and the voice control chip, the WIFI module is respectively connected to the Bluetooth module and the smart home wireless module, the audio processor is respectively connected to the analog-to-digital converter and the power amplifier, and the microphone is respectively connected to the speaker and the voice control chip.

[0021] In the specific implementation process of the present invention, the central processing unit plays an overall control role for the wireless intelligent audio system, controls the processing process of each component of the wireless intelligent audio system, the power management module is used to manage the power and distribute the power to different components of the audio system, the Bluetooth module is used to provide the Bluetooth function and Bluetooth connection of the audio system, the WIFI module is used to provide the WIFI function and WIFI connection of the audio system, the storage module is used to store the application programs and data of the audio system, the analog-to-digital converter and the power amplifier cooperate to achieve high-quality sound playback and provide a richer audio experience, the audio processor is used to process the audio of the audio system, the microphone and the speaker are used to play the audio, the smart home wireless module is used to provide the smart home control function, the voice control chip is used to provide the voice interaction function of the audio system, and the function of the audio system is controlled by the voice control chip, such as turning on and off and adjusting the volume. The microphone used in the present invention has high sensitivity, and the voice control chip has high performance indicators. The sound signal is received by the microphone and the voice control chip, and the microphone The microphone is set in an unobstructed position in the sound system, and the number of microphones is determined according to actual needs to achieve full-angle sound reception. In order to avoid echoes and noise, the microphone and speaker are designed with a 90-degree directivity and are located on different surfaces. In order to ensure that the voice control chip can accurately receive the user's instructions, the distance between the speaker and the microphone is set to determine the best echo cancellation effect. A strict sealing design is adopted around the microphone cavity, and high-performance compressible sponge is used for sealing to ensure that the sound does not leak. The spatial isolation between the speaker and the microphone adopts a plastic mold, and there is no mutual interference between the two. The speaker cavity is reinforced with shockproof treatment by the design of plastic structural reinforcement ribs to prevent feedback self-excited harmonics from being generated inside the control system or the shell. The determined echo cancellation effect can ensure that the maximum distortion of the sound system does not exceed 0.5%. The sound system is activated and controlled by voice to achieve free and convenient operation, and a 360-degree voice positioning function is realized, so that the sound can be effectively received within a maximum range of 7 meters.

[0022] In the specific implementation process of the utility model, the central processing unit includes an MT8518S main chip and an STM32G030 microprocessor. The MT8518S main chip is connected to the STM32G030 microprocessor based on a UART serial port; the MT8518S main chip has a built-in 4-core A53 embedded microprocessor.

[0023] Specifically, the MT8518S main chip in the central processor has a built-in quad-core A53 embedded microprocessor, which can make the operating frequency reach 1.5GHz, greatly improving the running speed and responding to various commands issued by users more quickly. At the same time, the MT8518S main chip and the voice control chip can form a highly integrated voice platform to achieve efficient response of voice interaction between the sound system and the user. The MT8518S main chip also supports low-power wake-up function, which can extend the standby time. The MT8518S main chip passes the requirements of timing test, and the control timing and power timing meet the definition and specification requirements of the hardware interface. For music streaming media playback, the low-power playback technology of the MT8518S main chip can provide twice as long playback time as other chips. The STM32G030 microprocessor has the characteristics of high performance and low power consumption. The STM32G030 microprocessor uses a universal asynchronous receiver and transmitter (Universal Asynchronous Receiver Transmitter) The Receiver / Transmitter (UART) serial port is connected to the MT8518S main chip, which can realize full-duplex transmission and reception of data between the MT8518S main chip and the STM32G030 microprocessor, further improving the processing performance of the wireless intelligent audio system.

[0024] In the specific implementation process of the utility model, the power management module adopts the MT6395ADC-DC conversion chip, the DIO54302 synchronous step-down DC-DC regulator and the SY8232I single-output step-down converter.

[0025] Specifically, the MT6395A DC-DC conversion chip can convert electric energy of one voltage value into electric energy of another voltage value in a DC circuit, and the MT6395A DC-DC conversion chip can realize 5-way DC voltage output, providing more powerful power support for the audio system. The DIO54302 synchronous step-down DC-DC regulator is a high-efficiency, high-frequency synchronous step-down DC-DC regulator that can provide an output current of up to 3A, and its operating voltage range can reach 28V from 4.5V, and can conduct electric energy with minimized loss, while providing fast transient response and simplified loop stability functions, which can make the electric energy operation more stable. The SY8232I single-output step-down converter can deliver 3A load current, and integrates a main switch and a synchronous switch with extremely low drain-source on-resistance to minimize conduction losses. The three can work together to support low power consumption of less than 0.5W and network standby of less than 2W. Therefore, the power management module can greatly extend the battery life of the audio system, and can better reduce energy consumption and extend the service life of the audio system.

[0026] In the specific implementation process of the utility model, the Bluetooth module and the WIFI module use the MT7921 chip, and the MT7921 chip is connected to the central processing unit based on the GPIO interface and the SDIO interface.

[0027] Specifically, the MT7921 chip is a highly integrated single chip with a low-power dual-band WIFI subsystem and a Bluetooth subsystem, higher throughput performance, lower latency and hardware enhancement functions, and can provide better signal transmission to support ultra-long-distance connection, achieving a WIFI signal radiation range of more than 100 meters from the 2.4G network and more than 200 meters from the 5G network, with a signal radiation efficiency of more than 40%. The MT7921 chip is connected to the central processing unit based on a general-purpose input / output (GPIO) interface and a secure digital input and output (SDIO) interface, and is connected to the central processing unit through the GPIO interface and the SDIO interface. In wireless transmission, it not only supports high-speed data transmission, but also avoids excessive energy consumption, thereby improving the battery life of the audio system.

[0028] In the specific implementation process of the utility model, the storage module adopts H5TC4GEFR-RDA512M double rate synchronous dynamic random access memory.

[0029] Specifically, two H5TC4GEFR-RDA512M double rate synchronous dynamic random access memories are used for system storage, which can reach a storage capacity of 1066MHz and SIP 128M bits, while further improving data transmission efficiency and effectively handling the growing demand for larger and more complex data workloads.

[0030] In the specific implementation process of the utility model, the analog-to-digital converter adopts a TLV320ADC5120 audio analog-to-digital converter, and the TLV320ADC5120 audio analog-to-digital converter is connected to the central processing unit based on an I2S bus.

[0031] Specifically, the TLV320ADC5120 audio analog-to-digital converter is a high-performance dual-channel audio analog-to-digital converter that supports synchronous sampling of two analog channels or four digital channels of pulse density modulated microphone input, and also integrates features such as programmable channel gain and digital volume control. Through its integrated high-performance features, the audio analog-to-digital converter is not only suitable for close-range audio systems, but also very suitable for sound systems in remote microphone applications. The TLV320ADC5120 audio analog-to-digital converter is connected to the central processing unit based on the integrated circuit built-in audio (Inter-IC Sound, I2S) bus. The I2S bus is dedicated to audio data transmission. The TLV320ADC5120 audio analog-to-digital converter converts the input signal into a digital signal, and inputs the digital signal into the central processing unit through the I2S bus, thereby providing high-fidelity audio transmission, so that the audio signal maintains the original sound quality during transmission.

[0032] In the specific implementation process of the utility model, the power amplifier adopts a TAS5825M stereo full-digital power amplifier, and the TAS5825M stereo full-digital power amplifier is connected to the central processing unit based on an I2S bus.

[0033] Specifically, the TAS5825M stereo all-digital power amplifier is a stereo high-performance closed-loop power amplifier with a powerful audio processing core that supports a variety of advanced audio processing processes. With the 192kHz architecture of the TAS5825M stereo all-digital power amplifier, its integrated sampling rate converter can detect changes in the input sampling rate and then automatically convert it to the target sampling rate at which the audio processor is running to avoid any audio artifacts, thereby providing high-quality audio playback. Similarly, it is connected to the central processor via the I2S bus to ensure the reliability of audio transmission.

[0034] In the specific implementation process of the utility model, the smart home wireless module adopts the CDZ-C2MG2-2100-00 smart home wireless module, and the CDZ-C2MG2-2100-00 smart home wireless module is connected to the WIFI module based on the GPIO interface.

[0035] Specifically, the CDZ-C2MG2-2100-00 smart home wireless module realizes the smart home control function. Through the CDZ-C2MG2-2100-00 smart home wireless module, it can take the audio system as the core to control the rest of the smart home. At the same time, the CDZ-C2MG2-2100-00 smart home wireless module supports the corresponding external network remote configuration, which can make the control of the smart home more convenient and improve the intelligence level of the audio system.

[0036] In the specific implementation process of the utility model, the wireless intelligent audio system also includes an RTL8201G port physical layer chip, and the RTL8201G port physical layer chip is connected to the central processing unit.

[0037] Specifically, the RTL8201G port physical layer chip is an integrated chip that provides a high-performance Ethernet interface, which can realize high-speed transmission of data packets and data communication, and can maintain high-quality operation in energy-saving mode without consuming excessive energy. The RTL8201G port physical layer chip is connected to the central processing unit, which can realize fast data transmission and data communication of the central processing unit, so that the entire audio system can operate at a high speed and stable state, avoiding untimely data transmission and communication, resulting in slow functional response of each component.

[0038] In summary, the embodiment of the utility model provides a wireless intelligent audio system, which forms a central processing unit by cooperating with the MT8518S main chip and the STM32G030 microprocessor, improves the processing performance of the wireless intelligent audio system and improves the accommodation of smart home control functions, realizes efficient control of smart homes through the CDZ-C2MG2-2100-00 smart home wireless module, improves the intelligence level of the audio system, uses the TLV320ADC5120 audio analog-to-digital converter and the TAS5825M stereo full-digital power amplifier to achieve high-quality sound playback, and provides a richer audio experience. At the same time, a voice control chip is used to realize the function control of the audio system through voice interaction, which can improve the user's audio experience and better meet the user's high requirements for smart audio.

[0039] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0040] In addition, the wireless intelligent audio system provided by the embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A wireless intelligent audio system, characterized in that: The wireless intelligent audio system includes: a central processing unit, a power management module, a Bluetooth module, a WIFI module, a storage module, an analog-to-digital converter, a power amplifier, an audio processor, a microphone, a speaker, a smart home wireless module and a voice control chip, wherein: The central processing unit is respectively connected to the power management module, Bluetooth module, WIFI module, storage module, analog-to-digital converter, power amplifier, audio processor, microphone, speaker, smart home wireless module and voice control chip; the WIFI module is respectively connected to the Bluetooth module and the smart home wireless module; the audio processor is respectively connected to the analog-to-digital converter and the power amplifier; and the microphone is respectively connected to the speaker and the voice control chip.

2. The wireless intelligent audio system according to claim 1, characterized in that: The central processing unit includes an MT8518S main chip and an STM32G030 microprocessor, and the MT8518S main chip is connected to the STM32G030 microprocessor based on a UART serial port.

3. The wireless intelligent audio system according to claim 2, characterized in that: The MT8518S main chip has a built-in quad-core A53 embedded microprocessor.

4. The wireless intelligent audio system according to claim 1, characterized in that: The power management module adopts MT6395A DC-DC conversion chip, DIO54302 synchronous step-down DC-DC regulator and SY8232I single-output step-down converter.

5. The wireless intelligent audio system according to claim 1, characterized in that: The Bluetooth module and the WIFI module use MT7921 chips, and the MT7921 chip is connected to the central processing unit based on a GPIO interface and an SDIO interface.

6. The wireless intelligent audio system according to claim 1, characterized in that: The storage module adopts H5TC4GEFR-RDA512M double rate synchronous dynamic random access memory.

7. The wireless intelligent audio system according to claim 1, characterized in that: The analog-to-digital converter adopts a TLV320ADC5120 audio analog-to-digital converter, and the TLV320ADC5120 audio analog-to-digital converter is connected to the central processing unit based on an I2S bus.

8. The wireless intelligent audio system according to claim 1, characterized in that: The power amplifier adopts a TAS5825M stereo full-digital power amplifier, and the TAS5825M stereo full-digital power amplifier is connected to the central processing unit based on an I2S bus.

9. The wireless intelligent audio system according to claim 1, characterized in that: The smart home wireless module adopts the CDZ-C2MG2-2100-00 smart home wireless module, and the CDZ-C2MG2-2100-00 smart home wireless module is connected to the WIFI module based on the GPIO interface.

10. The wireless intelligent audio system according to claim 1, characterized in that: The wireless intelligent audio system also includes an RTL8201G port physical layer chip, and the RTL8201G port physical layer chip is connected to the central processor.

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