Autonomous and controllable sound force interface device for information transmission

Abstract

The invention provides an autonomous and controllable sound force interface device for information transmission, and belongs to the technical field of communication, the sound force interface device is used for converting a digital audio signal transmitted by a voice terminal into a media stream in a packet data packet format, further converting the media stream into an analog audio signal, and inputting the analog audio signal into a sound force head machine through a service cable; and meanwhile, the audio conversion module is used for converting an analog audio signal input by the sound force head machine into a digital audio signal, then converting the digital audio signal into a media stream in a packet data packet format, and further transmitting the media stream to a voice terminal through an Ethernet interface. According to the invention, audio transmission between the voice terminal and the sound head machine is realized.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and more specifically, relates to an autonomous and controllable acoustic force interface device for information transmission. Background Art

[0002] When establishing a voice call service, the voice terminal and the sound head cannot directly process the digital and analog signals between them. The voice terminal has a digital-to-analog conversion function and can receive digital signals transmitted by Ethernet. The sound head does not have a digital-to-analog conversion function and can only receive analog signals transmitted by the service cable. Therefore, the direct call connection between the sound head and the voice terminal is very challenging. Summary of the invention

[0003] In view of the defects of the prior art, the purpose of this application is to provide an autonomous and controllable acoustic-mechanical interface device for information transmission, aiming to solve the problem that the existing voice terminal and the acoustic-mechanical headset cannot directly conduct voice calls.

[0004] To achieve the above-mentioned purpose, in a first aspect, the present application provides an autonomous and controllable acoustic-force interface device for information transmission, one side of the acoustic-force interface device is connected to a voice terminal using an Ethernet interface, and the other side is connected to an acoustic-force head unit using a service cable;

[0005] The sound force interface device is used to determine whether to open the information transmission path between the voice terminal and the sound force head unit according to the business information transmitted by the voice terminal;

[0006] At the same time, it is used to convert the digital audio signal transmitted by the voice terminal into a media stream in the packet data format, and based on the frame synchronization signal and the clock signal, convert the media stream in the packet data format into an analog audio signal, and input it into the sound head machine;

[0007] At the same time, it is used to convert the analog audio signal input by the sound head into a digital audio signal based on the frame synchronization signal and clock signal, and then convert it into a media stream in the packet data format, and transmit it to the voice terminal through the Ethernet interface.

[0008] Further preferably, the acoustic force interface device comprises: an acoustic force interface processing module, an FPGA module, a signaling control module, a core board function module, a PCIE to Ethernet interface module and a backplane interconnection module;

[0009] The backplane interconnection module is connected to the acoustic-force interface processing module; the backplane interconnection module is connected to the PCIE to Ethernet interface module through the service network and the management network; the FPGA module is connected to the acoustic-force interface processing module, the input end of the signaling control module and the core board function module respectively; the acoustic-force interface processing module is connected to the output end of the signaling control module; the core board function module is connected to the PCIE to Ethernet interface module;

[0010] The PCIE to Ethernet interface module is used to receive digital audio signals and service information transmitted by the voice terminal through the service network, and receive management information provided by the core board function module through the management network;

[0011] The acoustic interface processing module is used to convert the digital audio signal transmitted by the FPGA module into an analog audio signal, or to convert the analog audio signal transmitted by the acoustic head into a digital audio signal;

[0012] The FPGA module is used to convert the media stream in the packet data format received through the service network into a digital audio signal; or to convert the digital audio signal received and converted from the acoustic force interface into a media stream in the packet data format and send it to the Ethernet interface; and to transmit the management signal transmitted by the core board function module to the signaling control module;

[0013] The signaling control module is used to control the signal transmission path of the acoustic force interface processing module based on the management signal transmitted by the FPGA module;

[0014] The backplane interconnection module is used to connect the Ethernet interface to the voice terminal and the service cable interface to the sound head, and also provides power supply function;

[0015] The core board functional module is used to determine whether to open the information transmission path between the voice terminal and the sound head according to the business information transmitted by the voice terminal, and transmit the transmission management signal to the FPGA module; it is also used to convert the format of the media stream in the packet data format transmitted by the FPGA module and the digital audio signal transmitted by the business network.

[0016] Further preferably, the acoustic force interface processing module includes a Codec function unit, an audio processing unit and a relay unit connected in sequence; the Codec function unit is connected to the FPGA module; the audio processing unit and the relay unit are controlled by the signaling control module;

[0017] The Codec functional unit is used to convert the digital audio signal of the FPGA module into an analog audio signal, or to convert the analog audio signal transmitted by the sound power head into a digital audio signal;

[0018] The audio processing unit is used to superimpose the analog audio signal transmitted by the Codec functional unit with the analog audio signal transmitted by other acoustic head units, amplify the gain, and input it to the target acoustic head unit;

[0019] The relay unit is used to control the opening or closing of the input side of the acoustic force interface based on the management signal.

[0020] Further preferably, the autonomous and controllable acoustic-force interface device for information transmission also includes a DC / DC power supply adjustment module for providing power to the FPGA module, the acoustic-force interface processing module, the core board functional module, the PCIE to Ethernet interface module and the signaling control module.

[0021] Further preferably, the autonomous and controllable acoustic force interface device for information transmission also includes a single-chip microcomputer power-off restart module, which is used to restart all modules when the core board functional module freezes.

[0022] Further preferably, the autonomous and controllable acoustic-force interface device for information transmission also includes a power function protection module for realizing a hot-swap function.

[0023] Further preferably, a plurality of acoustic force interface devices are provided, a plurality of acoustic force interfaces are provided correspondingly, and each acoustic force interface side is connected to a maximum of 8 acoustic force head machines.

[0024] Further preferably, the sound force interface processing module in the multiple sound force interface devices is used to control the opening or closing of the sound force interface input side according to the management signal, and the sound force interface device is used to superimpose and amplify the analog audio signal transmitted from the voice terminal side with the analog audio signal transmitted from other opened sound force interface sides except the target sound force head machine, and then input it to the target sound force head machine.

[0025] In a second aspect, the present application provides an audio communication system, including: a sound force interface device, a voice terminal and a sound force head unit;

[0026] One side of the sound-force interface device is connected to the voice terminal using an Ethernet interface, and the other side is connected to the sound-force head unit using a service cable;

[0027] The acoustic-force interface device is the autonomous and controllable acoustic-force interface device for information transmission provided by the present application above;

[0028] The voice terminal is used to convert the audio analog signal into a digital audio signal and transmit it to the sound force interface device, and receive the digital audio signal transmitted by the sound force head through the Ethernet interface; and is used to transmit business information to the sound force interface device;

[0029] The acoustic head is used to transmit analog audio signals to the acoustic interface device through a service cable, or to receive analog audio signals transmitted by the acoustic interface device.

[0030] In a second aspect, based on the autonomous and controllable acoustic force interface device for information transmission provided by the present application, the present application provides an audio information transmission method, comprising the following steps:

[0031] Step 1: Connect the sound interface device between the voice terminal and the sound head according to the service information transmitted by the voice terminal;

[0032] Step 2: Convert the digital audio signal transmitted by the voice terminal into a media stream in a packet data format, and based on the frame synchronization signal and the clock signal, convert the media stream in the packet data format into an analog audio signal, and input it into the sound head unit;

[0033] Alternatively, the analog audio signal input by the sound head is converted into a digital audio signal based on a frame synchronization signal and a clock signal, and then converted into a media stream in a packet data format, and transmitted to the voice terminal through an Ethernet interface.

[0034] Further preferably, the method for transmitting the analog audio signal input by the sound head to the voice terminal specifically comprises the following steps:

[0035] The analog audio signal input by the sound power head is transmitted to the sound power interface processing module, after amplifying and filtering the analog audio signal, the analog audio signal is converted into an A-rate PCM format signal based on the frame synchronization signal and the clock signal;

[0036] The A-rate PCM format signal is converted into a GMAC interface format signal through the FPGA module, transmitted to the core board function module for processing, and then transmitted to the voice terminal through the Ethernet interface.

[0037] Further preferably, the method for transmitting the digital audio signal transmitted by the voice terminal to the sound head unit comprises the following steps:

[0038] Transmit the digital audio signal transmitted by the voice terminal to the core board function module and convert it into a GMAC interface format signal;

[0039] The FPGA module is used to convert the GMAC interface format signal into an A-rate PCM format signal;

[0040] The A-rate PCM format signal is converted into an analog signal, filtered and amplified, and transmitted to the sound force interface.

[0041] In general, the above technical solutions conceived by this application have the following beneficial effects compared with the prior art:

[0042] The present application provides a sound-force interface device, which is arranged between a voice terminal and a sound-force head machine. It can convert a digital audio signal transmitted by the voice terminal into a media stream in a packet data packet format, and based on a frame synchronization signal and a clock signal, convert the media stream in the packet data packet format into an analog audio signal, and input it into the sound-force head machine; or convert the analog audio signal input by the sound-force head machine into a digital audio signal based on a frame synchronization signal and a clock signal, and transmit it to the voice terminal through an Ethernet interface, thereby realizing audio transmission between the voice terminal and the sound-force head machine.

[0043] The present application provides a sound-force interface device, which expands 4-channel sound-force interfaces to 6-channel sound-force interfaces. Each sound-force interface can be connected to 8 sound-force head units at the same time, that is, the voice terminal can perform a 1-to-48 conference call service, and the 8 sound-force head units on each channel can also talk to each other (the sound-force interface device is used to superimpose the analog audio signal transmitted by the voice terminal side with the analog audio signal transmitted by the other open sound-force interface sides except the target sound-force head unit, and input it to the target sound-force head unit), which greatly expands the call range of the conference.

[0044] The present application provides an acoustic-force interface device, in which a power function protection module is provided, which can realize a hot-swap function and avoid a power failure of the entire device caused by a power failure of the acoustic-force interface device.

[0045] The present application provides a sound-force interface device, in which a single-chip microcomputer power-off and restart module is provided, which can enable the device to autonomously monitor the core board module or other modules. When extremely special situations such as application crashes occur, the device can respond quickly in a short period of time and power off and restart the device independently without affecting the power supply requirements of other devices in the equipment.

[0046] The present application provides an acoustic-force interface device, in which an acoustic-force interface processing module is used to perform analog-to-digital conversion and digital-to-analog conversion, without the need for large-volume chip units such as audio converters, so the size of the device is greatly reduced, and the acoustic-force interface processing module has a high degree of integration. Compared with existing devices that require multiple chips to cooperate to complete the function of a module, the reliability is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a schematic diagram of an audio communication system provided in an embodiment of the present application;

[0048] Figure 2 is a schematic diagram of an acoustic-force interface device provided in an embodiment of the present application;

[0049] Figure 3 It is a schematic diagram of the acoustic-force interface processing module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0051] When the voice terminal needs to communicate with the sound head machine through the autonomous and controllable sound-force interface device, the voice signal needs to be converted into a digital signal and transmitted through the network for processing. Therefore, the voice terminal needs to establish a service with the sound head machine through the autonomous and controllable sound-force interface device. Among them, the autonomous and controllable sound-force interface device is used to realize the expansion of the Ethernet interface for network exchange to transmit voice signals; at the same time, the autonomous and controllable sound-force interface device is used to convert the voice signal received by Ethernet transmission between digital signals and analog signals, so that the voice signal received by the voice terminal from the sound head machine is a digital signal, and the voice signal received by the sound head machine from the voice terminal is an analog signal.

[0052] like Figure 1 As shown, an embodiment of the present application provides a sound-force interface device, which is connected between a voice terminal and a sound-force head machine; the voice terminal and the sound-force head machine receive analog signals (human voice) from the outside, but the internal output and internal reception of the voice terminal are digital signals, and the internal output and internal reception of the sound-force head machine are analog signals. Therefore, the sound-force interface device can convert analog signals and digital signals, and exchange digital signal information with the voice terminal through the Ethernet interface, and exchange analog signal information with the sound-force head machine through the service cable.

[0053] The following is a brief introduction to the working principle of the autonomous and controllable voice telephone access device provided in the embodiment of the present application:

[0054] The autonomous and controllable sound-force interface device J1 provides 6 external sound-force interfaces 1-6 (K1-K6) connected to up to 48 sound-force head machines (H1-H48), mainly completing media conversion, media flow control and signaling conversion functions; the microphone of the sound-force head machine (H1-H48) inputs the human voice P in the form of an analog signal, which is input to the sound-force interface 1-6 (K1-K6) through the service cable, and then input to the backplane interconnection module 9 of the sound-force interface device J1, thereby connecting to the sound-force interface processing module 2; the analog audio signal first passes through the relay unit 23 in the sound-force interface processing module 2, and then to the audio processing unit 22 for amplification gain and simple filtering processing, and then is processed into a PCM format signal with an A rate by the Codec function unit 21, input to the FPGA module 1 and converted into a GMAC interface format signal (supporting both A rate and u rate), sent to the core board function module 4 for processing, and then sent to the Ethernet interface (service network) extended by the PCIE to Ethernet interface module 5 to be sent to the Ethernet, thereby being transmitted to the voice terminal S1 in the form of an analog signal to play the human voice P on the speaker;

[0055] The microphone of the voice terminal S1 inputs the human voice Q in the form of an analog signal, which is sent to the Ethernet through the Ethernet interface extended by the PCIE to Ethernet interface module 5, and then transmitted to the core board function module 4; the GMAC interface format signal (A rate and u rate) is transmitted to the FPGA module 1 through the GMAC interface, and the PCM format signal of the A rate is processed into an analog signal by the Codec function unit 21. When passing through the audio processing unit, the analog signal P input by the microphone of the other sound power head machine S2 and the analog signal processed by the Codec function unit 21 are superimposed, and after passing through the high and low pass filters in the audio processing unit, it is transmitted to the dual-channel audio power amplifier for amplification gain, and then transmitted to the 6-way external sound power interface 1-6 (K1-K6), and finally the human voice P+Q is played in the headphones of 48 sound power head machines (H1-H48);

[0056] It should be noted that the sound force interface device J1 can have 6 sound force interfaces 1-6 (K1-K6), and each sound force interface can be connected in series with up to 8 sound force head machines, which also means that it can support the establishment of a 1-to-48 call service at the same time, and the analog signal P input by the microphone of 48 sound force head machines (H1-H48) and the analog signal processed by the Codec functional unit 21 are superimposed, so that when 8 sound force head machines are connected in series on a certain sound force interface, the input of the microphone of a certain sound force head machine can also be heard in the headphones of the other seven sound force head machines, that is, when establishing a service of a 1-way sound force interface, a voice terminal can establish a call service with 8 sound force head machines at the same time, and the 8 sound force head machines can also talk to each other; in addition, when establishing a conference service of a 6-way sound force interface, a voice terminal can establish a call service with 48 sound force head machines at the same time, and the 8 sound force head machines connected in series on each sound force interface can talk to each other, but the 8-way sound force interfaces are independent of each other;

[0057] like Figure 2 As shown, the embodiment of the present application provides an autonomous and controllable acoustic force interface device, including: an FPGA module 1, an acoustic force interface processing module 2, a signaling control module 3, a core board function module 4, a PCIE to Ethernet interface module 5, a DC / DC power supply adjustment module 6, a single-chip power-off restart module 7, a power supply function protection module 8 and a backplane interconnection module 9;

[0058] In the embodiment of the present application, the FPGA module 1 is used to receive the sound force service data media stream through the Ethernet interface (service network), convert the media stream in the packet data packet format into a digital audio signal, and convert the digital audio signal received and converted from the sound force interface into a media stream in the packet data packet format, and send it to the Ethernet interface (service network); process the Ethernet interface (management network) information sent by the core board function module into a corresponding control signal, and send it to the instruction control module; provide clock division and control functions, generate corresponding frame synchronization signals and clock signals, and send them to the sound force interface processing module; provide station address, board address reading and reporting, running light control and other logical control functions;

[0059] In the embodiment of the present application, the acoustic-force interface processing module 2 converts the digital audio signal after the media stream conversion into an analog audio signal, amplifies the signal, and sends it to the acoustic-force interface; at the same time, converts the analog audio signal received by the acoustic-force interface into a digital signal, and sends it to the FPGA module; cooperates with the signaling control module to control the opening and closing of the acoustic-force interface and the audio processing circuit;

[0060] In the embodiment of the present application, the signaling control module 3 is used to implement signaling interaction with the FPGA module and control the acoustic force interface processing module based on the management signal sent;

[0061] In the embodiment of the present application, the core board function module 4, with the FPGA module and the PCIE to Ethernet interface module, performs format conversion and other processing on the audio signal and the service information of the Ethernet interface (service network); with the FPGA module, processes the management information of the Ethernet interface (management network); with the PCIE to Ethernet interface module, expands 2 Ethernet interfaces; the service information is the dialing request and number request sent by the voice terminal, etc.;

[0062] In the embodiment of the present application, the PCIE to Ethernet interface module 5 is used to expand two Ethernet interfaces for the sound head access device, one of which is used as an Ethernet interface (service network) and the other is used as an Ethernet interface (management network); at the same time, the Ethernet interface (management network) can also be used as a debugging interface;

[0063] In the embodiment of the present application, the DC / DC power supply adjustment module 6 provides a first power supply to each module of the device;

[0064] In the embodiment of the present application, the single-chip computer power-off restart module 7 is used to power off and restart the device in extremely special circumstances such as when the core board function module freezes, so as to avoid power failure of the entire device;

[0065] In the embodiment of the present application, the power function protection module 8 is used to implement the hot-swap function of the device and to reduce the influence of the fluctuation of the power supply voltage on the power supply of the device during the power supply process;

[0066] In the embodiment of the present application, the FPGA module 1 is respectively connected to the acoustic force interface processing module 2, the signaling control module 3 and the core board functional module 4; the acoustic force interface processing module 2 is respectively connected to the FPGA module 1 and the signaling control module 3; the core board functional module 4 is respectively connected to the FPGA module 1 and the PCIE to Ethernet interface module 5; the DC / DC power supply adjustment module 6 is respectively connected to the single-chip power-off module 7, the power supply function protection module 8, and each module of the autonomous and controllable acoustic force interface device, providing a first power supply to each module of the device; the backplane interconnection module 9 is respectively connected to the acoustic force interface processing module 2, the PCIE to Ethernet interface module 5 and the power supply function protection module 8, providing an Ethernet interface connected to the voice terminal and a service cable interface connected to the acoustic force head machine for information interaction of audio signals, and providing a basic power supply for the equipment.

[0067] In the first implementation of this application, Figure 2 As shown, the FPGA module includes:

[0068] FPGA chip unit, used to convert digital audio signals and media streams in packet datagram format, process Ethernet interface (management network) information into corresponding control signals, provide clock division and control functions, and provide control logic functions;

[0069] The FLASH memory unit is used to store the startup files, setting information, application programs and instructions of the FPGA chip unit that controls the acoustic force interface processing module 2, the signaling control module 3 and the core board function module 4;

[0070] The first clock circuit is used to provide a clock source signal for the device and a clock source signal for the acoustic-force interface processing module 2 .

[0071] Further preferably, the FPGA chip unit may be FMK50T4, which greatly saves the volume of the device and improves the reliability of the device;

[0072] Further preferably, the FLASH memory unit may be EFM25F128A, and the first clock circuit may be a 16.38 MHz crystal oscillator circuit and a 100 MHz crystal oscillator circuit;

[0073] like Figure 2 As shown, in a second possible implementation of the present application, the sound-force interface processing module 1 includes: a Codec functional unit, an audio processing unit, and a relay unit, which are used for digital-to-analog conversion and analog-to-digital conversion, controlling the opening and closing of the sound-force interface, and processing the signal input to the sound-force interface and the signal output to the sound-force interface;

[0074] In the embodiment of the present application, the Codec function unit, the audio processing unit and the relay unit are connected;

[0075] Code function unit 21 is a single-channel PCM codec filter used for digital-to-analog conversion and analog-to-digital conversion;

[0076] More specifically, the single-channel PCM codec filter may be SE681512A;

[0077] More preferably, if Figure 3 As shown, the audio processing unit 22 includes:

[0078] Operational amplifier chip IC, used to superimpose the audio input from the sound force interface and the audio output, and then convert it through the audio transformer and output it from the corresponding channel;

[0079] Dual-channel audio power amplifier, used to amplify the analog audio signal after digital-to-analog conversion as required, and then output it from the corresponding channel after conversion by the audio transformer;

[0080] Further preferably, the dual-channel audio power amplifier may be SGM4810, and the new operational amplifier IC unit may be XL224;

[0081] More preferably, if Figure 3 As shown, the relay unit 23 includes:

[0082] Relays and surrounding circuits are used to control the opening and closing of the acoustic force interface;

[0083] More specifically, the relay may be HFD3 / 4.5-SR;

[0084] like Figure 2 As shown, in a third possible implementation of the present application, the signaling control module 3 further includes:

[0085] The 8D latch unit is used to implement signaling interaction for the management signal sent from the FPGA module 1;

[0086] The photoelectric coupler unit is used to receive the instruction information from the 8D latch unit to complete the control of the acoustic force interface processing module 2;

[0087] More specifically, the 8D latch unit may be 54HCT373S, and the photocoupler unit may be YG521-4;

[0088] In the embodiment of the present application, the 8D latch unit is connected to the FPGA module 1, and the photoelectric coupler unit is connected to the 8D latch unit and the acoustic-force interface processing module unit;

[0089] like Figure 2 As shown, in a fourth possible implementation of the present application, the core board function module 4 further includes:

[0090] The core board unit is used to process the service information and audio signals of the Ethernet interface (service network), process the management information of the Ethernet interface (management network), and expand 2 Ethernet interfaces;

[0091] More specifically, the core board unit may be a COM-E core board RK3399;

[0092] like Figure 2 As shown, in a fifth possible implementation of the embodiment of the present application, the PCIE to Ethernet interface module 5 includes:

[0093] The Ethernet control chip unit and the network transformer unit are used to expand two Ethernet interfaces, one of which is used as an Ethernet interface (business network) and the other is used as an Ethernet interface (management network). At the same time, the Ethernet interface (management network) can also be used as a debugging interface.

[0094] A second clock circuit, used for providing a clock source signal for the Ethernet control chip unit;

[0095] More specifically, the Ethernet control chip unit may be WX1860AL2, the network transformer unit may be LT1306-B; the second clock circuit may be a 25 MHz crystal oscillator circuit;

[0096] In the embodiment of the present application, the Ethernet control chip unit is connected to the network transformer unit;

[0097] like Figure 2 As shown, in a sixth possible implementation of the present application, the DC / DC power supply adjustment module 6 includes:

[0098] A multi-output step-down power management unit and a DC / DC step-down chip unit provide a first power supply to each module of the device;

[0099] More specifically, the multi-output buck power management unit may be RY1314, and the DC / DC buck chip unit may be BL8034CS8TR;

[0100] like Figure 2 As shown, in a seventh possible implementation of the present application, the single-chip microcomputer power-off module includes:

[0101] The ARM microcontroller unit and the watchdog monitoring chip unit are used to power off and restart the device in extremely special cases such as when the core board function module freezes, to avoid power failure of the entire device;

[0102] More specifically, the ARM microcontroller unit may be GD32F103C8T6, and the watchdog monitoring chip unit may be SGM706-TYS8G / TR;

[0103] A third clock circuit, used for providing a clock source signal for the ARM microcontroller unit;

[0104] In the embodiment of the present application, the ARM microcontroller unit is connected to the watchdog monitoring chip unit;

[0105] like Figure 2 As shown, in a seventh possible implementation of the present application, the power function protection module 8 includes:

[0106] A hot-swap controller unit, an N-channel power MOSFET unit, a transient diode unit and a fuse are used to implement a hot-swap function of the device, and all first power supplies of the device are connected to the power supply through a hot-swap circuit;

[0107] More specifically, the hot-swap controller unit may be SGM25711BXMS10G, the N-channel power MOSFET unit may be CJAB60N03, and the transient diode unit may be SMAJ12A;

[0108] In the embodiment of the present application, the hot-swap controller unit, the N-channel power MOSFET unit, the transient diode unit and the fuse are connected;

[0109] like Figure 2 As shown, in an eighth possible implementation of the embodiment of the present application, the backplane interconnection module 9 includes:

[0110] 110-core spring-type CPCI high-density connector unit is used to provide the device with external interface signals, realize the signal interconnection function between the device and the voice terminal and the sound head, and support power supply;

[0111] Further preferably, the 110-core wire spring type CPCI high-density connector unit may be H2B110FMD;

[0112] In practical applications, each part is installed on a single board, and the single board is connected to the voice terminal and the sound head through a backplane connector 9; specifically, the backplane connector can be a 100-core connector.

[0113] The embodiment of the present application adopts an FPGA module, an acoustic-force interface processing module, a core board functional module, a PCIE to Ethernet interface module, a DC / DC power supply adjustment module, a single-chip microcomputer power-off module and a power supply function protection module to form an autonomous and controllable acoustic-force interface device; since the acoustic-force interface processing module is a single chip that can complete the functions that require multiple chips in existing devices, the size of the device is greatly reduced, and because the acoustic-force interface processing module is highly integrated, compared with the existing devices that require multiple chips to cooperate to complete the function of a module, the reliability is greatly improved and the maintenance cost is lower.

[0114] In summary, compared with the prior art, the present application has the following advantages:

[0115] The sound-force interface device provided in the present application expands the 4-channel sound-force interface to the 6-channel sound-force interface. Each sound-force interface can be connected to 8 sound-force head units at the same time, that is, the voice terminal can conduct a 1-to-48 conference call service, and the 8 sound-force head units on each channel can also talk to each other, greatly expanding the call range of the conference.

[0116] The acoustic-force interface device provided in the present application is designed with a power function protection module, which can realize a hot-swap function and avoid a power outage of the entire device caused by a power outage of the acoustic-force interface device.

[0117] The acoustic-force interface device provided in the present application is designed with a single-chip microcomputer power-off and restart module, so that when the device autonomously monitors the core board module or other modules and encounters extremely special situations such as application crashes, it can quickly respond and process in a short period of time, and power off and restart the device independently without affecting the power supply requirements of other devices in the equipment.

[0118] The acoustic-force interface device provided by the present application adopts an acoustic-force interface processing module for analog-to-digital conversion and digital-to-analog conversion, and does not require large chip units such as audio converters. Therefore, the size of the device is greatly reduced, and the integration of the acoustic-force interface processing module is very high. Compared with the existing equipment that requires multiple chips to cooperate to complete the function of a module, the reliability is greatly improved.

[0119] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An autonomous and controllable acoustic-mechanical interface device for information transmission, characterized in that: One side of the sound-force interface device is connected to the voice terminal using an Ethernet interface, and the other side is connected to the sound-force head unit using a service cable; The sound force interface device is used to determine whether to open the information transmission path between the voice terminal and the sound force head unit according to the business information transmitted by the voice terminal; At the same time, it is used to convert the digital audio signal transmitted by the voice terminal into a media stream in the packet data format, and based on the frame synchronization signal and the clock signal, convert the media stream in the packet data format into an analog audio signal, and input it into the sound head machine; At the same time, it is used to convert the analog audio signal input by the sound head into a digital audio signal based on the frame synchronization signal and clock signal, and transmit it to the voice terminal through the Ethernet interface.

2. The acoustic-force interface device according to claim 1, characterized in that: include: Acoustic-force interface processing module, FPGA module, signaling control module, core board function module, PCIE to Ethernet interface module and backplane interconnection module; The backplane interconnection module is connected to the acoustic-force interface processing module; the backplane interconnection module is connected to the PCIE to Ethernet interface module through the service network and the management network; the FPGA module is connected to the acoustic-force interface processing module, the input end of the signaling control module and the core board function module respectively; the acoustic-force interface processing module is connected to the output end of the signaling control module; The core board function module is connected to the PCIE to Ethernet interface module; The PCIE to Ethernet interface module is used to receive digital audio signals and service information transmitted by the voice terminal through the service network, and receive management signals provided by the core board function module through the management network; The acoustic force interface processing module is used to convert the digital audio signal transmitted by the FPGA module into an analog audio signal, or to convert the analog audio signal transmitted by the acoustic force head into a digital audio signal; The FPGA module is used to convert the media stream in the packet data format received through the service network into a digital audio signal; or to convert the digital audio signal received and converted from the acoustic force interface into a media stream in the packet data format and send it to the Ethernet interface; and to transmit the management signal transmitted by the core board function module to the signaling control module; The signaling control module is used to control the signal transmission path of the acoustic force interface processing module based on the management signal transmitted by the FPGA module; The backplane interconnection module is used to connect the Ethernet interface to the voice terminal and the service cable interface to the sound head, and also provides power supply function; The core board functional module is used to determine whether to open the information transmission path between the voice terminal and the sound head according to the business information transmitted by the voice terminal, and transmit the transmission management signal to the FPGA module; it is also used to convert the format of the media stream in the packet data format transmitted by the FPGA module and the digital audio signal transmitted by the business network.

3. The acoustic-force interface device according to claim 2, characterized in that: The acoustic force interface processing module includes a Codec function unit, an audio processing unit and a relay unit connected in sequence; the Codec function unit is connected to the FPGA module; the audio processing unit and the relay unit are both controlled by the signaling control module; The Codec functional unit is used to convert the digital audio signal of the FPGA module into an analog audio signal, or to convert the analog audio signal transmitted by the sound head into a digital audio signal; The audio processing unit is used to superimpose the analog audio signal transmitted by the Codec functional unit with the analog audio signal transmitted by other sound head units, and input the result to the target sound head unit; It is also used to amplify the analog audio signal transmitted by the Codec functional unit; The relay unit is used to control the opening or closing of the acoustic force interface based on the management signal.

4. The acoustic force interface device according to claim 2 or 3, characterized in that: It also includes a DC / DC power supply adjustment module for providing power to the FPGA module, the acoustic force interface processing module, the core board function module, the PCIE to Ethernet interface module and the signaling control module; It also includes a single-chip computer power-off restart module, which is used to restart all modules when the core board function module freezes; It also includes a power function protection module for realizing hot-swap function.

5. The acoustic force interface device according to claim 2 or 3, characterized in that: Multiple acoustic force interface devices are provided, and correspondingly multiple acoustic force interfaces are provided, and each acoustic force interface side is connected to a maximum of 8 acoustic force head machines.

6. The acoustic force interface device according to claim 5, characterized in that: The sound force interface processing module in multiple sound force interface devices is used to control the opening or closing of the sound force interface input side according to the management signal. The sound force interface device is used to superimpose and amplify the analog audio signal transmitted from the voice terminal side with the analog audio signal transmitted from other open sound force interface sides except the target sound force head machine, and then input it to the target sound force head machine.

7. An audio communication system, characterized in that: It includes a sound force interface device, a voice terminal and a sound force head unit; The acoustic force interface device is a acoustic force interface device as claimed in any one of claims 2 to 6, one side of the acoustic force interface device is connected to the voice terminal using an Ethernet interface, and the other side is connected to the acoustic force head unit using a service cable; The voice terminal is used to convert the audio analog signal into a digital audio signal and transmit it to the sound force interface device, and receive the digital audio signal transmitted by the sound force head through the Ethernet interface; and is used to transmit business information to the sound force interface device; The acoustic head is used to transmit analog audio signals to the acoustic interface device through a service cable, or to receive analog audio signals transmitted by the acoustic interface device.

8. An audio information transmission method based on the acoustic force interface device according to any one of claims 2 to 6, characterized in that: The specific steps include: Step 1: Connect the sound interface device between the voice terminal and the sound head according to the service information transmitted by the voice terminal; Step 2: Convert the digital audio signal transmitted by the voice terminal into a media stream in a packet data format, and based on the frame synchronization signal and the clock signal, convert the media stream in the packet data format into an analog audio signal, and input it into the sound head unit; Alternatively, the analog audio signal input by the sound head is converted into a digital audio signal based on a frame synchronization signal and a clock signal, and then converted into a media stream in a packet data format, and transmitted to the voice terminal through an Ethernet interface.

9. The audio information transmission method according to claim 8, characterized in that: The method for transmitting the analog audio signal input by the sound head to the voice terminal specifically comprises the following steps: The analog audio signal input by the sound power head is transmitted to the sound power interface processing module, after amplifying and filtering the analog audio signal, the analog audio signal is converted into an A-rate PCM format signal based on the frame synchronization signal and the clock signal; The A-rate PCM format signal is converted into a GMAC interface format signal through the FPGA module, transmitted to the core board function module for processing, and then transmitted to the voice terminal through the Ethernet interface.

10. The audio information transmission method according to claim 8, characterized in that: The method for transmitting the digital audio signal transmitted by the voice terminal to the sound head unit specifically comprises the following steps: Transmit the digital audio signal transmitted by the voice terminal to the core board function module and convert it into a GMAC interface format signal; The FPGA module is used to convert the GMAC interface format signal into an A-rate PCM format signal; The A-rate PCM format signal is converted into an analog signal, filtered and amplified, and transmitted to the sound force interface.

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