阅读说明：本技术 一种模块化分布式视音频处理方案 (Modularized distributed video and audio processing scheme ) 是由 梁华骥 易武 白超志 张英 高雪飞 于 2021-04-23 设计创作，主要内容包括：本发明公开了一种模块化分布式视音频处理方案,所述处理单元包括核心板单元以及扩展板单元；所述核心板单元,用于编码解码及数据控制处理,通过总线对接扩展板,总线定义包括电源、HDMI、模拟音频、USB、RS232、红外线、以太网、光纤、控制与状态信号；所述扩展板单元,用于对接核心板,对核心板引出的信号做扩展应用设计,根据不同的应用设计不同的产品形态与功能。本发明设计成标准的模块单元,定义好模块间的接口,这一设计可以应用于海思、ASPEED、SDVOE的核心模块,盒子形态、墙插形态、桌插形态、地插形态、其他嵌入式定制形态的扩展板模块,通过组合核心+扩展方式,从而达到快速的组合硬件,满足应用的需求。(The invention discloses a modularized distributed video and audio processing scheme, wherein a processing unit comprises a core board unit and an expansion board unit; the core board unit is used for encoding, decoding and data control processing, and is in butt joint with the expansion board through a bus, and the bus definition comprises a power supply, an HDMI (high-definition multimedia interface), an analog audio, a USB (universal serial bus), an RS232, infrared rays, an Ethernet, an optical fiber, control and state signals; the expansion board unit is used for butting the core board, performing expansion application design on signals led out by the core board, and designing different product forms and functions according to different applications. The invention is designed into a standard module unit, defines interfaces among modules, can be applied to core modules of Haisi, ASPEED and SDVOE, and expansion board modules of box form, wall insertion form, desk insertion form, ground insertion form and other embedded customized forms, and achieves rapid hardware combination by combining the core and expansion modes to meet the application requirements.)

1. A modular distributed video and audio processing scheme,

the system comprises a core board unit and an expansion board unit;

the core board unit is used for encoding, decoding and data control processing, and is in butt joint with the expansion board through a bus, and the bus definition comprises a power supply, an HDMI (high-definition multimedia interface), an analog audio, a USB (universal serial bus), an RS232, infrared rays, an Ethernet, an optical fiber, control and state signals;

the expansion board unit is used for butting the core board, performing expansion application design on signals led out by the core board, and designing different product forms and functions according to different applications;

the core board unit and the expansion board unit are in butt joint through two FCI connectors.

2. The modular distributed video and audio processing scheme according to claim 1,

the core board unit comprises a processor, an audio codec, an HDMI transmitting unit, an HDMI receiving unit, a first memory and a second memory, wherein the processor is connected to the first FCI connector through the first memory, connected to the first FCI connector through the audio codec, connected to the first FCI connector through the first memory, connected to the first FCI connector through the HDMI transmitting unit, and connected to the first FCI connector through the HDMI receiving unit;

the expansion board unit comprises a matrix switcher and a single chip microcomputer, the matrix switcher is connected with the single chip microcomputer, an HDMI input port, an HDMI output port and a second FCI connector respectively, the matrix switcher is further connected with the DP input port through a DP-to-HDMI cable, and the second FCI connector is connected with a serial communication data interface, a circuit input port, an infrared output port, a power amplifier output port, a network cable interface, an optical fiber interface, a USB1.0 interface and a USB2.0 interface respectively.

3. The modular distributed video and audio processing scheme according to claim 2 wherein the first and second FCI connectors are two 60PIN high speed connectors at a frequency of 12 GHZ.

4. The modular distributed video and audio processing scheme according to claim 1 wherein the bus definitions include power, HDMI, analog audio, USB, RS232, infrared, ethernet, fiber optic, control and status signals.

5. The modular distributed video and audio processing scheme according to claim 2, wherein the single chip is further connected to a touch control display screen through a human interface.

Technical Field

The invention relates to the field of high-definition audio and video, in particular to a modularized distributed audio and video processing scheme.

Background

The distributed video and audio processing technology is that video, audio and control signals are encoded through a special processing chip or FPGA through a certain algorithm, such as JPEG2000, H.265, MPEG or a private algorithm, then are packaged, transmitted and distributed through a network, decoding is a reverse process, and then video and audio control signals are restored and output. Through the networking of the switch, the video and audio signals can be sent to the place covered by the network. Professional audio and video applications, such as high-definition video conference rooms, dispatching command centers and hospital operation video and audio, have high video and audio quality requirements and low delay requirements, are based on local area network transmission, and are different from the applications of wide area network-based live video, interconnected televisions and the like. The existing distributed video and audio processing technology has three directions, the first is H.265 coding and decoding based on Haisi chip, which is characterized in that the video bandwidth is low, and the compression ratio is as high as 200: 1, the image quality and the original image quality are relatively poor, a hundred-million bandwidth network can meet the requirements, and secondly, a private coding and decoding based on an ASPEED chip is characterized in that the time delay is as low as tens of milliseconds, and the compression ratio is 3.5: the third is a BLUE REVIER coding and decoding technology based on an SDVOE chip, and is characterized in that the time delay is less than 1 microsecond, and the compression ratio is highest 1.3: 1, the image quality is basically equal to the original image quality, and the bandwidth of a ten-trillion network can meet the requirement. Therefore, the existing distributed coding and decoding products in the market are realized based on the three technical schemes, and occupy low, medium and high markets according to requirements of user application on image quality, time delay and cost.

The most fundamental reason is that the product design manufacturers in the distributed field have few companies with the above three solutions, and the difference of the technical solutions is large, each family has each standard and characteristic in hardware reference design, and each family has a greatly different protocol in software, and the application direction of the products in the distributed field has a matrix, a KVM seat, image processing, application scene oriented command center, conference room, hospital system, and the product forms are further classified into box forms, table insert forms, ground insert forms, wall panel forms, or various forms embedded into other devices. As no unified standard exists, a conventional design method needs to design dozens of hardware PCBA boards to perfect the whole product line, and different software control platforms are used.

Disclosure of Invention

The invention aims to provide a modular unit designed into a standard, an interface between modules is well defined, the design can be applied to core modules of Haima, ASPEED and SDVOE, and expansion board modules of a box form, a wall insertion form, a table insertion form, a ground insertion form and other embedded customized forms, and the core and expansion modes are combined, so that the hardware can be quickly combined, the application requirements can be met, and the problems in the background art can be solved.

In order to achieve the purpose, the invention provides the following technical scheme:

a modular distributed video and audio processing scheme:

the system comprises a core board unit and an expansion board unit;

the core board unit is used for encoding, decoding and data control processing, and is in butt joint with the expansion board through a bus, and the bus definition comprises a power supply, an HDMI (high-definition multimedia interface), an analog audio, a USB (universal serial bus), an RS232, infrared rays, an Ethernet, an optical fiber, control and state signals;

the expansion board unit is used for butting the core board, performing expansion application design on signals led out by the core board, and designing different product forms and functions according to different applications;

the core board unit and the expansion board unit are in butt joint through two FCI connectors.

As a still further preferable embodiment of the present invention:

the core board unit comprises a processor, an audio codec, an HDMI transmitting unit, an HDMI receiving unit, a first memory and a second memory, wherein the processor is connected to the first FCI connector through the first memory, connected to the first FCI connector through the audio codec, connected to the first FCI connector through the first memory, connected to the first FCI connector through the HDMI transmitting unit, and connected to the first FCI connector through the HDMI receiving unit;

the expansion board unit comprises a matrix switcher and a single chip microcomputer, the matrix switcher is connected with the single chip microcomputer, an HDMI input port, an HDMI output port and a second FCI connector respectively, the matrix switcher is further connected with the DP input port through a DP-to-HDMI cable, and the second FCI connector is connected with a serial communication data interface, a circuit input port, an infrared output port, a power amplifier output port, a network cable interface, an optical fiber interface, a USB1.0 interface and a USB2.0 interface respectively.

As a still further preferable embodiment of the present invention: the first FCI connector and the second FCI connector adopt two 60PIN high-speed connectors and the frequency is 12 GHz.

As a still further preferable embodiment of the present invention: the bus definition includes power, HDMI, analog audio, USB, RS232, infrared, ethernet, fiber, control and status signals.

As a still further preferable embodiment of the present invention: the single chip microcomputer is also connected with a touch control display screen through a human interface.

The invention further provides a modularized distributed video and audio processing method, which is characterized in that an encoder is connected with an HDMI/DP/SDI high-definition signal source, a USB interface, an analog audio interface, a network cable interface or an optical fiber interface are connected with a switch, a decoder network cable or an optical fiber interface is connected with the switch, the output is output to a man-machine interaction device, equipment accessed through an RS232 interface and an infrared interface is controlled, the APP of the intelligent terminal is further controlled to be accessed into the switch through the network cable or the wireless interface, and the visual video signal preview dragging is realized to control scheduling.

As a still further preferable embodiment of the present invention: the man-machine interaction device comprises a display, a projector, a large screen and a mouse and keyboard.

As a still further preferable embodiment of the present invention: the intelligent terminal comprises a computer, a tablet and an intelligent mobile phone.

Compared with the prior art, the invention has the beneficial effects that: the invention is designed into a standard module unit, defines interfaces among modules, can be applied to core modules of Haisi, ASPEED and SDVOE, and expansion board modules of box form, wall insertion form, desk insertion form, ground insertion form and other embedded customized forms, and achieves rapid hardware combination by combining the core and expansion modes to meet the application requirements.

Drawings

FIG. 1 is a block diagram of core board unit control principles.

Fig. 2 is a schematic block diagram of the expansion board unit control.

Fig. 3 is a pin diagram of a first FCI connector.

Fig. 4 is a pin diagram of a second FCI connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, a modular distributed video and audio processing scheme: the system comprises a core board unit and an expansion board unit; the core board unit is used for encoding, decoding and data control processing, and is in butt joint with the expansion board through a bus, and the bus definition comprises a power supply, an HDMI (high-definition multimedia interface), an analog audio, a USB (universal serial bus), an RS232, infrared rays, an Ethernet, an optical fiber, control and state signals; the expansion board unit is used for butting the core board, performing expansion application design on signals led out by the core board, and designing different product forms and functions according to different applications; the core board unit and the expansion board unit are in butt joint through two FCI connectors.

The core board unit comprises a processor, an audio codec, an HDMI transmitting unit, an HDMI receiving unit, a first memory and a second memory, wherein the processor is connected to the first FCI connector through the first memory, connected to the first FCI connector through the audio codec, connected to the first FCI connector through the first memory, connected to the first FCI connector through the HDMI transmitting unit, and connected to the first FCI connector through the HDMI receiving unit;

the expansion board unit comprises a matrix switcher and a single chip microcomputer, the matrix switcher is connected with the single chip microcomputer, an HDMI input port, an HDMI output port and a second FCI connector respectively, the matrix switcher is further connected with the DP input port through a DP-to-HDMI cable, and the second FCI connector is connected with a serial communication data interface, a circuit input port, an infrared output port, a power amplifier output port, a network cable interface, an optical fiber interface, a USB1.0 interface and a USB2.0 interface respectively.

The core board unit and the expansion board unit are in butt joint through two high-frequency connectors (a first FCI connector and a second FCI connector), four M3 screw positioning holes are formed, and the two boards are locked through copper columns and screws.

The first and second FCI connectors are two 60PIN high speed connectors at a frequency of 12GHZ, the first FCI connector PIN diagram is shown in fig. 3, and the PINs are defined as follows:

the pin diagram of the second FCI connector is shown in fig. 3, and the pin definitions are as follows:

the bus definition includes power, HDMI, analog audio, USB, RS232, infrared, ethernet, fiber, control and status signals.

The single chip microcomputer is also connected with a touch control display screen through a human interface.

Preferably, the invention also provides a modularized distributed video and audio processing method, which adopts an encoder to connect an HDMI/DP/SDI high-definition signal source, a USB interface, an analog audio interface, a network cable interface or an optical fiber interface to connect a switch, a decoder network cable or an optical fiber to connect the switch, outputs the signals to a display, a projector, a large screen, a mouse and a keyboard, controls equipment accessed through an RS232 interface and an infrared interface, further controls APP of a computer, a tablet and a smart phone to access the switch through the network cable or the wireless interface, and realizes visual video signal preview and dragging as control scheduling.

In summary, the present invention is designed as a standard module unit, and defines interfaces between modules, and this design can be applied to core modules of haisi, asped, and SDVOE, and expansion board modules of box form, wall plug form, desk plug form, ground plug form, and other embedded customized forms, and through combining the core and expansion modes, a fast hardware combination is achieved, and application requirements are met.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.