An all-in-one audio and video fusion management and control platform

Abstract

This utility model relates to the field of audio equipment technology, specifically disclosing an integrated audio-visual fusion management platform. It includes a main unit containing a main control circuit board. The main control circuit board is communicatively connected to a USB sound card interface, a REC recording interface, a display screen, and several control switches located on the front of the unit. It is also communicatively connected to a power interface, a power amplifier interface, an audio control knob, an analog audio output interface, an analog audio input interface, an external control serial port, a CAMERA interface, a conference unit interface, a network interface, an antenna interface, a UHF audio antenna channel, and a control antenna channel located on the back of the unit. This utility model integrates multiple functional modules into a single unit by adding a main control circuit board. This not only reduces redundant hardware but also lowers wiring costs and maintenance expenses caused by complex wiring. Furthermore, it provides audio processing capabilities, thus preventing frequent harsh noises and improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to an all-in-one audio and video fusion management and control platform. Background Technology

[0002] The converged management platform is an intelligent audio device that integrates sound pickup, amplification, and playback. It is suitable for various scenarios such as conference rooms, classrooms, home entertainment, and outdoor activities, and is committed to providing users with efficient, convenient, and high-quality audio solutions.

[0003] A search revealed that Chinese utility model patent CN202221150100.9 discloses a multifunctional audio and video control platform, comprising a housing and a dustproof mechanism. The housing has a display screen at the top of its front surface, adjustment knobs slidably connected to a groove on the left side of the upper surface, a control button on the right side of the upper surface, a touch screen on the right side of the upper surface, and connection ports on the right side of the housing. The dustproof mechanism is located at the front of the housing. The platform also includes a PLC controller, which is located inside the housing. The input terminals of the PLC controller are electrically connected to an external power supply, and the output terminals of the adjustment knobs and control buttons are electrically connected to the input terminals of the PLC controller. This multifunctional audio and video control platform can control audio or video files and prevent dust accumulation on the surface of the device, avoiding dust affecting its normal operation and enhancing its practicality.

[0004] For example, Chinese utility model patent application number CN202221208886.5 discloses a conference main control unit with self-testing function, including a housing, a control panel, and a testing mechanism; the housing has a partition at its lower end, a signal transmitter at the lower end of the partition, a circuit detector in the middle of the partition, and a display screen in a groove at the upper end of the housing; the control panel is located at the upper end of the housing; the testing mechanism is located on the upper surface of the partition and is installed in conjunction with the control panel; it also includes a PLC controller, which is located at the upper end of the partition, with its input terminal electrically connected to an external power supply, and the signal transmitter and the PLC controller bidirectionally electrically connected. This conference main control unit with self-testing function performs self-testing on the entire device from multiple aspects, improving the self-testing effect, and can control the magnitude of the pressing force to simulate the situation of control buttons during normal use, thereby improving the accuracy of the test results.

[0005] While the existing audio equipment can meet basic usage needs, it involves too many devices, has complex wiring, high wiring and maintenance costs, and lacks audio processing capabilities, which can easily lead to frequent harsh noises that disrupt the meeting process and result in a poor user experience. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an all-in-one audio and video fusion management platform that addresses the above-mentioned deficiencies of the prior art. By adding a main control circuit board, multiple functional modules are integrated into a whole, which not only reduces redundant hardware devices, but also minimizes wiring costs and maintenance expenses caused by complex wiring. In addition, it has audio processing functions, thereby avoiding the frequent occurrence of harsh sounds and providing a better user experience.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] An all-in-one audio and video fusion management and control platform includes a main control circuit board disposed within the main control circuit board. The main control circuit board is communicatively connected to a USB sound card interface, a REC recording interface, a display screen, and several control switches located on the front of the main control circuit board. The main control circuit board is also communicatively connected to a power interface, a power amplifier interface, an audio control knob, an analog audio output interface, an analog audio input interface, an external control serial port, a CAMERA interface, a conference unit interface, a network interface, an antenna interface, a UHF audio antenna channel, and a control antenna channel located on the back of the main control circuit board.

[0009] Preferably, the main control circuit board includes an audio input / output module, a wired conferencing module, a DSP signal processing module, a wireless conferencing module, an FPGA main control module, a power management module, an Ethernet controller, and an MCU module. The FPGA main control module is connected to the audio input / output module, the wired conferencing module, the DSP signal processing module, the wireless conferencing module, the power management module, and the MCU module, respectively. The MCU module is connected to the display screen, the Ethernet controller, and the external control serial port, respectively.

[0010] Preferably, the FPGA main control module includes an FPGA chip U23, resistors R49, R50, and R51, and resistors R49, R50, and R51 are all connected to the FPGA chip U23.

[0011] Preferably, the audio input / output module includes an audio processing chip U25, audio input interfaces J2, J3, J4, and J6, an audio control switch SW8, an audio control switch SW9, a relay K9, and an audio output interface J5. The audio processing chip U25 is connected to the FPGA chip U23, audio input interfaces J2, J3, J4, J6, audio control switches SW8 and SW9, and relay K9, respectively. The relay K9 is connected to the audio output interface J5.

[0012] Preferably, the wired conferencing module includes a 485 communication chip U13, a wired conferencing interface CN8, a Zener diode D13, a resistor R45, and a resistor R46. The Zener diode D13 is connected to the 485 communication chip U13, the resistor R45, and the resistor R46. The resistor R45 and the resistor R46 are both connected to the wired conferencing interface CN8. The 485 communication chip U13 is connected to the FPGA chip U23.

[0013] Preferably, the DSP signal processing module includes a DSP signal output connector J1 and a resistor R0603, and the FPGA chip U23 and the resistor R0603 are both connected to the DSP signal output connector J1.

[0014] Preferably, the wireless conferencing module includes a Bluetooth chip U1, an audio output interface J7, resistors R8 and R85, and capacitors C61 and C62. The Bluetooth chip U1 is connected to the FPGA chip U23, resistors R8 and R85, and capacitors C61 and C62 are connected to resistors R8 and R85 and the audio output interface J7, respectively.

[0015] Preferably, the power management module includes power switches SW4, SW5, and SW6, capacitors C35, C36, C38, C39, C37, and C40, resistors R36 and R37, and capacitor C43. Resistor R36 and capacitor C43 are respectively connected to power switches SW6 and SW4, and capacitors C35, C36, C38, C39, C37, and C40 are all connected to the FPGA chip U23.

[0016] Preferably, the MCU module includes an MCU main control chip U24, capacitors C51, C52, C53, C54, C55, C56, and C57, all of which are connected to the MCU main control chip U24.

[0017] Preferably, the Ethernet controller includes an Ethernet chip U11, which is connected to the main control chip U24.

[0018] The audio-visual fusion management platform integrated machine provided by this utility model, using the above technical solution, has the following beneficial effects: The integrated machine houses a main control circuit board, which is communicatively connected to a USB sound card interface, a REC recording interface, a display screen, and several control switches located on the front of the machine. It is also communicatively connected to a power interface, a power amplifier interface, an audio control knob, an analog audio output interface, an analog audio input interface, an external control serial port, a CAMERA interface, a conference unit interface, a network interface, an antenna interface, a UHF audio antenna channel, and a control antenna channel located on the back of the machine. By adding the main control circuit board, multiple functional modules are integrated into a single unit, which not only reduces redundant hardware but also minimizes the impact on performance. Reduced cabling costs and maintenance expenses due to complex cabling; significantly reduced cabling and maintenance costs; furthermore, the combination of multiple functional modules facilitates information sharing, improves meeting control efficiency, effectively enhances system scalability, enables resource sharing, intelligent linkage, and data fusion, significantly improving system performance, efficiency, and economic benefits; it also features audio processing capabilities, avoiding frequent harsh noises and providing a better user experience; integrating the functions of a meeting discussion system, audio processor, power amplifier, and other devices into one compact and portable design, it can achieve complete meeting functions simply by connecting speakers, making it widely applicable to various scenarios such as conference rooms, multimedia classrooms, and corporate training centers, supporting ad-hoc meetings and outdoor activities, and enabling rapid setup of the meeting system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0021] Figure 3 This is a circuit diagram of the audio input / output module in this utility model;

[0022] Figure 4 This is a circuit diagram of the wired conferencing module of this utility model;

[0023] Figure 5 This is a circuit schematic diagram of the DSP signal processing module in this utility model;

[0024] Figure 6 This is a circuit diagram of the wireless conferencing module in this utility model;

[0025] Figure 7 This is the circuit schematic diagram of the FPGA main control module in this utility model;

[0026] Figure 8 This is a circuit diagram of the power management module in this utility model;

[0027] Figure 9 This is the circuit schematic diagram of the Ethernet controller in this utility model;

[0028] Figure 10 This is the circuit schematic diagram of the MCU module in this utility model;

[0029] In the diagram, 1-Power interface, 2-Amplifier interface, 3-Audio control knob, 4-Analog audio output interface, 5-Analog audio input interface, 6-External control serial port, 7-CAMERA interface, 8-Conference unit interface, 9-Network interface, 10-Antenna interface, 11-UHF audio antenna channel, 12-Control antenna channel, 13-USB sound card interface, 14-REC recording interface, 15-Display screen, 16-Function setting button, 17-CONTROL control knob, 18-VOL control knob, 19-Main power switch. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figure 1-3 As shown, this audio-visual fusion management platform all-in-one machine includes a main unit containing a main control circuit board. This main control circuit board is communicatively connected to a USB sound card interface, a REC recording interface, a display screen, and several control switches located on the front of the main unit. It is also communicatively connected to a power interface, a power amplifier interface, an audio control knob, an analog audio output interface, an analog audio input interface, an external control serial port, a CAMERA interface, a conference unit interface, a network interface, an antenna interface, a UHF audio antenna channel, and a control antenna channel located on the back of the main unit. As an intelligent audio device integrating sound pickup, amplification, and playback, this audio-visual fusion management platform all-in-one machine is suitable for various scenarios such as conference rooms, classrooms, home entertainment, and outdoor activities. It aims to provide users with efficient, convenient, and high-quality audio solutions. Furthermore, it integrates the functions of a conference discussion system, an audio processor, and a power amplifier into one device. Its compact design makes it easy to carry; simply connecting speakers enables complete conference functionality. It is widely applicable to various scenarios such as conference rooms, multimedia classrooms, and corporate training centers. It supports ad-hoc meetings and outdoor activities, allowing for rapid setup of conference systems.

[0032] As you can understand, the following interfaces are provided: Power Interface 1: Main unit power input interface (110-220V wide voltage input); Amplifier Interface 2: 4-channel amplifier output socket (8Ω 80W x 4ch), with one cooling fan; Audio Control Knob 3: Audio control for Amplifier Interface 2, used for volume adjustment of the 4-channel amplifier interface; Analog Audio Output Interface 4: 2-channel 3-pin Phoenix terminal balanced output, for connecting to an external mixing console, audio processor, or recording equipment; Analog Audio Input Interface 5: 2-channel 3-pin Phoenix terminal balanced output, supporting external audio input, such as DVD, MP3 player, mixing console, microphone, remote audio input of video conferencing terminals, etc., and supporting 48V phantom power, allowing direct connection of wired microphones; External Control Serial Port 6: 1-channel RS485 interface, for connecting to an external control panel or central control unit to control the main unit's functions; CAMERA Interface 7: 1-channel RS232 interface, used to connect a camera for video tracking; Conference Unit Interface. 8: Supports 2-way daisy-chain connection of conference units and 1-way ring connection of conference units. Hot-swappable lines have automatic repair function and support hot-swapping of lines. Each line supports a maximum of 28 units. Network Interface 9: Used to connect network devices such as computers and switches to realize network control of host functions. Antenna Interface 10: Connects WIFI / Bluetooth antennas. WIFI is used to connect to the network for function control, and Bluetooth is used to connect for audio playback. UHF Audio Antenna Channel 11: 2 audio antenna channels for connecting audio signals of wireless conference units and handheld microphones. It supports a maximum of 4 units speaking simultaneously and supports first-in-first-out speaking mode. There is no limit to the number of units. Control Antenna Channel 12: 433MHz, used for connecting wireless unit control signals.

[0033] Understandably, the USB sound card interface 13 supports bidirectional USB sound cards and supports USB audio input and output for PCs; the REC recording interface 14 supports USB flash drive recording; the display screen 15 is a 1.77-inch display screen used to display system function setting options; the control switches include: function setting button 16 used for system function settings; CONTROL control knob 17: encoder knob control used to control the host function, realize menu switching selection, and parameter adjustment; VOL control knob 18: control the overall amplifier output volume knob.

[0034] Specifically, the main control circuit board includes an audio input / output module, a wired conferencing module, a DSP signal processing module, a wireless conferencing module, an FPGA main control module, a power management module, an Ethernet controller, and an MCU module. The FPGA main control module is connected to the audio input / output module, wired conferencing module, DSP signal processing module, wireless conferencing module, power management module, and MCU module, respectively. The MCU module is connected to the display screen, Ethernet controller, and external control serial port, respectively. Understandably, in practical applications, the audio input / output module, wired conferencing module, DSP signal processing module, wireless conferencing module, FPGA main control module, power management module, Ethernet controller, and MCU module can all be integrated onto a single PCB circuit board and installed within the device.

[0035] Specifically, the FPGA main control module includes an FPGA chip U23, resistors R49, R50, and R51, all of which are connected to the FPGA chip U23. The audio input / output module includes an audio processing chip U25, audio input interfaces J2, J3, J4, and J6, audio control switches SW8 and SW9, a relay K9, and an audio output interface J5. The audio processing chip U25 is connected to the FPGA chip U23, audio input interfaces J2, J3, J4, J6, audio control switches SW8 and SW9, and relay K9. Relay K9 is connected to the audio output interface J5. Understandably, the FPGA chip U23 could be an XC5VLX30-1FFG676C chip, and the audio processing chip U25 could be a PT2313L chip, etc. They integrate high / low frequency adjustment, subwoofer control, and three-channel stereo input functions, and can achieve gain adjustment and power amplifier excitation port control through a microcontroller.

[0036] Specifically, the wired conferencing module includes a 485 communication chip U13, a wired conferencing interface CN8, a Zener diode D13, resistors R45 and R46. The Zener diode D13 is connected to the 485 communication chip U13, resistors R45 and R46, and resistors R45 and R46 are both connected to the wired conferencing interface CN8. The 485 communication chip U13 is connected to the FPGA chip U23. The DSP signal processing module includes a DSP signal output connector J1 and a resistor R0603. The FPGA chip U23 and resistor R0603 are both connected to the DSP signal output connector J1. It can be understood that the 485 communication chip U13 can be an SP3485EEN chip, etc., and the DSP signal output connector J1 connects to the DSP signal processor for processing digital signals.

[0037] Specifically, the wireless conferencing module includes a Bluetooth chip U1, an audio output interface J7, resistors R8 and R85, and capacitors C61 and C62. The Bluetooth chip U1 is connected to the FPGA chip U23, resistors R8 and R85, and capacitors C61 and C62 are connected to resistors R8 and R85 and the audio output interface J7, respectively. It is understood that the Bluetooth chip U1 can be a QCC5171 chip, etc., used to establish a Bluetooth communication connection.

[0038] Specifically, the power management module includes power switches SW4, SW5, and SW6; capacitors C35, C36, C38, C39, C37, and C40; resistors R36 and R37; and capacitor C43. Resistor R36 and capacitor C43 are connected to power switches SW6 and SW4, respectively. Capacitors C35, C36, C38, C39, C37, and C40 are all connected to the FPGA chip U23. Understandably, this power management module is used to connect to an external power supply and output 3.3V power to power the aforementioned circuit.

[0039] Specifically, the MCU module includes an MCU main control chip U24, capacitors C51, C52, C53, C54, C55, C56, and C57, all of which are connected to the MCU main control chip U24. The Ethernet controller includes an Ethernet chip U11, which is connected to the main control chip U24. It is understood that the MCU main control chip U24 can be an STM32F405RGT6 chip, etc., and the Ethernet chip U11 can be a LAN9255, used to establish network communication connections.

[0040] Understandably, the performance specifications of this audio and video fusion management platform all-in-one machine include: frequency response range: 20Hz-20KHz; signal-to-noise ratio ≥90dBA; channel isolation ≥80dB; total harmonic distortion <0.05%; dynamic range: ≥90dB; output impedance: ≥1kΩ; host power supply: AC100-240V / 50Hz.

[0041] Understandably, this utility model is reasonably designed and uniquely constructed. By adding an MCU module and an FPGA main control module, multiple functional modules are integrated into a single unit. This not only reduces redundant hardware devices but also minimizes wiring costs and maintenance expenses caused by complex wiring, significantly reducing both wiring and maintenance costs. Furthermore, the combination of multiple functional modules facilitates information sharing, improves the efficiency of conference control, effectively enhances the future scalability of the system, and enables resource sharing, intelligent linkage, and data fusion, significantly improving system performance, efficiency, and economic benefits.

[0042] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An audio-video integrated management and control platform all-in-one machine, comprising a machine body, characterized in that: The device is equipped with a main control circuit board, which is communicatively connected to a USB sound card interface, a REC recording interface, a display screen, and several control switches located on the front of the device. The main control circuit board is also communicatively connected to a power interface, a power amplifier interface, an audio control knob, an analog audio output interface, an analog audio input interface, an external control serial port, a CAMERA interface, a conference unit interface, a network interface, an antenna interface, a UHF audio antenna channel, and a control antenna channel located on the back of the device.

2. The audio-video fusion management and control platform all-in-one machine according to claim 1, characterized in that: The main control circuit board includes an audio input / output module, a wired conferencing module, a DSP signal processing module, a wireless conferencing module, an FPGA main control module, a power management module, an Ethernet controller, and an MCU module. The FPGA main control module is connected to the audio input / output module, the wired conferencing module, the DSP signal processing module, the wireless conferencing module, the power management module, and the MCU module, respectively. The MCU module is connected to the display screen, the Ethernet controller, and the external control serial port, respectively.

3. The audio-video fusion management and control platform all-in-one machine according to claim 2, characterized in that: The FPGA main control module includes an FPGA chip U23, resistors R49, R50, and R51, all of which are connected to the FPGA chip U23.

4. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The audio input / output module includes an audio processing chip U25, audio input interfaces J2, J3, J4, and J6, an audio control switch SW8, an audio control switch SW9, a relay K9, and an audio output interface J5. The audio processing chip U25 is connected to the FPGA chip U23, audio input interfaces J2, J3, J4, J6, audio control switches SW8 and SW9, and relay K9. The relay K9 is connected to the audio output interface J5.

5. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The wired conferencing module includes a 485 communication chip U13, a wired conferencing interface CN8, a Zener diode D13, a resistor R45, and a resistor R46. The Zener diode D13 is connected to the 485 communication chip U13, the resistor R45, and the resistor R46. The resistor R45 and the resistor R46 are both connected to the wired conferencing interface CN8. The 485 communication chip U13 is connected to the FPGA chip U23.

6. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The DSP signal processing module includes a DSP signal output connector J1 and a resistor R0603. The FPGA chip U23 and the resistor R0603 are both connected to the DSP signal output connector J1.

7. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The wireless conferencing module includes a Bluetooth chip U1, an audio output interface J7, a resistor R8, a resistor R85, a capacitor C61, and a capacitor C62. The Bluetooth chip U1 is connected to the FPGA chip U23, the resistor R8, and the resistor R85, respectively. The capacitors C61 and C62 are connected to the resistor R8, the resistor R85, and the audio output interface J7, respectively.

8. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The power management module includes power switches SW4, SW5, and SW6, capacitors C35, C36, C38, C39, C37, and C40, resistors R36 and R37, and capacitor C43. Resistor R36 and capacitor C43 are connected to power switches SW6 and SW4, respectively. Capacitors C35, C36, C38, C39, C37, and C40 are all connected to the FPGA chip U23.

9. The audio-video fusion management and control platform all-in-one machine according to claim 3, characterized in that: The MCU module includes an MCU main control chip U24, capacitors C51, C52, C53, C54, C55, C56, and C57. All capacitors C51, C52, C53, C54, C55, C56, and C57 are connected to the MCU main control chip U24.

10. The audio-video fusion management and control platform all-in-one machine according to claim 9, characterized in that: The Ethernet controller includes an Ethernet chip U11, which is connected to the main control chip U24.

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