CN208540071U - Audio-video gateway and tutoring system - Google Patents
Audio-video gateway and tutoring system Download PDFInfo
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Abstract
The utility model provides audio-video gateway and tutoring system, it is related to gateway technical field, including the audio frequency apparatus, video equipment and control equipment being respectively connected with audio-video gateway, wherein, audio-video gateway includes: associated built-in Linux core board, Android user function plate, HDMI expansion board, VGA expansion board, serial ports expansion plate and interchanger plate, wherein, Android user function plate is configured with same panel module.Audio frequency apparatus, video equipment and control equipment are organically blended and are integrated by audio-video gateway by the utility model, not only enrich teaching method, and simplify the operation complexity of existing control device and professional, expand use scope；Meanwhile audio-video gateway greatly reduces hardware cost and use cost by using built-in Linux core board and Android user function plate, the characteristics of but also with high-performance and high stability.
Description
Technical field
The utility model relates to gateway technical fields, more particularly, to audio-video gateway and tutoring system.
Background technique
Currently, audio-video teaching is widely used in school, various audio & video equipments are flooded with inside classroom.Equipment it is numerous
It mostly on the one hand allows teacher's teaching more rich and varied, but also brings very big use complexity to teacher simultaneously, lead to ease for use
Lower, the reliability of whole system also reduces, and influences the enthusiasm that teacher uses instead.
When teaching now to the use of audio & video equipment generally using network central control or cry in multimedia teaching control come into
The management of row teaching equipment.There is numerous teaching control device providers in the country at present, and interface and function are also all similar, weight
Point is all fallen in the level of control.It is also only to carry out simply although a other middle control can encode audio, video data
Compressed encoding can not handle audio, video data itself.Although multimedia middle control system can help teacher to reduce answering for equipment manipulation
Miscellaneous degree, but since middle control function is very limited, it cannot combine closely, cannot be combined with the content of courses, for old with education activities
Teacher wish to promoted quality of instruction help it is limited, cannot really and education activities combine closely, it is middle control for teacher's
Help, which is namely attended class, conveniently not to spend plug wire.
Another bigger defect of the control device of teaching is generally to support very weak, some roots to internet function
This does not have access internet function, middle control itself or the control for field device, cannot be by Internet technology and online
Resource is used for education activities, cannot give full play to the effect that school puts into the various audio & video equipments of a large amount of financial resources purchases, also greatly
The expansion of present education activities and the content of courses is limited greatly.
The function of control device is also very single, main or control aspect function.But education activities now are
The fulltime internet teaching mode of the total space is moved towards from the single indoor multimedia teaching of religion, teaching ways also occur
Great changes have no longer been that simple teacher says that student listens, but is transformed into existing teacher and says the discussion type for also having student to say
The demand in classroom；The classroom of existing local one is attended class, and also has multiple classrooms between different places difference classroom to be same as above a class
The demand of remote interactive teaching；Teacher not only can the common class of the above section, there are also instructor in broadcasting, live streaming, recorded broadcast requirement, can will
The convenient recycling of the lecture content of oneself, for demands such as student's review, colleague's comment, the accumulation of oneself successes achieved in teaching.It is comprehensive
Upper described, various control devices its function of using inside present classroom has already fallen behind development and demand in teaching, not
Be able to satisfy monographic experiment, education activities recycling, education individualization, Education equity demand for development, need one it is completely new
Equipment realize these functions, come the development and implementation of these education activities of power-assisted.
Utility model content
In view of this, the purpose of this utility model is to provide audio-video gateway and tutoring system, to improve teaching
Mode it is rich, simplify the operation complexity of existing control device and professional, expand use scope, and reduce hardware at
Sheet and use cost, improve the performance and stability of gateway.
In a first aspect, the utility model embodiment provides a kind of audio-video gateway, wherein include: associated embedding
Enter formula Linux kernel core, Android user function plate, HDMI expansion board, VGA expansion board, serial ports expansion plate and interchanger plate,
Wherein, the Android user function plate is configured with same panel module.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the serial ports expansion plate being connected with the Linux kernel core includes: Line in interface, Mic in interface, Line out
Interface, HDMI/VGA IN interface, HDMI/VGA out interface and RJ45 interface.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, the serial ports expansion plate being connected with the Android user function plate includes: that Mic in interface, HDMI/VGA IN connect
Mouth, RJ45 interface and USB interface.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the Linux kernel core is at least two, and the Linux kernel core is attached by PCIe connecting plate.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein each Linux kernel core connects different the HDMI expansion board and/or VGA and expands
Panel.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, configured with I2S interface and the audio codec being connected with the I2S interface on the Linux kernel core.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, it further include the echo suppressor being connected between the Linux kernel core and serial ports expansion plate.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, the Linux kernel core is also configured with SATA hard disc.
Second aspect, the utility model embodiment also provide a kind of tutoring system, wherein including the as above any one sound
Video gateway equipment further includes the audio frequency apparatus being respectively connected with the audio-video gateway, video equipment and control equipment；
The audio data sources of acquisition are delivered to the audio-video gateway and set by the audio input device in the audio frequency apparatus
It is standby, audio output of the output into the audio frequency apparatus after the audio-video gateway is handled the audio data sources
Equipment；
The video data source of acquisition is delivered to the audio-video gateway and set by the video input apparatus in the video equipment
It is standby, video output of the output into the video equipment after the audio-video gateway handles the video data source
Equipment；
The control command is sent to the audio-video gateway by operation output control command by the control equipment
Equipment.
In conjunction with second aspect, the utility model embodiment provides the first possible embodiment of second aspect,
In, the video data source includes analog video data and compressed video data；
The analog video data is carried out digitized processing, output digital video data by the audio-video gateway；
The compressed video data is carried out decompression reduction by the audio-video gateway, exports naked video data.
The utility model embodiment bring it is following the utility model has the advantages that
Audio-video gateway and tutoring system provided by the utility model, including be respectively connected with audio-video gateway
Audio frequency apparatus, video equipment and control equipment, wherein audio-video gateway includes: associated built-in Linux core
Plate, Android user function plate, HDMI expansion board, VGA expansion board, serial ports expansion plate and interchanger plate.The utility model passes through
Audio frequency apparatus, video equipment and control equipment are organically blended and are integrated by audio-video gateway, not only enrich teaching method,
And the operation complexity of existing control device and professional is simplified, expand use scope；Meanwhile audio-video gateway
By using built-in Linux core board and Android user function plate, hardware cost and use cost are greatly reduced, again
Has the characteristics of high-performance and high stability.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the audio-video gateway hardware structural diagram that the utility model embodiment one provides；
Fig. 2 is the Linux kernel core system architecture schematic diagram that the utility model embodiment one provides；
Fig. 3-4 is that the audio data that the utility model embodiment one provides flows to schematic diagram；
Fig. 5 is that the video data that the utility model embodiment one provides flows to schematic diagram；
Fig. 6 is the control data flow schematic diagram that the utility model embodiment one provides；
Fig. 7-8 is the tutoring system schematic diagram that the utility model embodiment two provides.
Icon:
100- audio-video gateway；110-Linux core board；120-Android user function plate；130-HDMI extension
Plate；140-VGA expansion board；150- interchanger plate；160- serial ports expansion plate；200- audio frequency apparatus；300- video equipment；400- control
Control equipment.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
There is numerous teaching control device providers in the country at present, and interface and function are also all similar, and emphasis is all fallen within
In the level of control.Although multimedia middle control system can help teacher to reduce the complexity that equipment manipulates, since middle control function is non-
It is often limited, it cannot combine closely, cannot be combined with the content of courses with education activities, teacher is wished to promote quality of instruction side
It helps limited, cannot really combine closely with education activities, middle control is namely attended class and can be facilitated for the help of teacher
A bit, plug wire is not spent.Another bigger defect of the control device of teaching is generally to support internet function
Very weak, some does not have access internet function, middle control itself or the control for field device, cannot be by internet
Technology and internet resource are used for education activities, cannot give full play to the various audio & video equipments that school puts into a large amount of financial resources purchases
Effect, also greatly limits the expansion of present education activities and the content of courses.
The function of control device is also very single, main or control aspect function.But education activities now are
The fulltime internet teaching mode of the total space is moved towards from the single indoor multimedia teaching of religion, teaching ways also occur
Great changes have no longer been that simple teacher says that student listens, but is transformed into existing teacher and says the discussion type for also having student to say
The demand in classroom；The classroom of existing local one is attended class, and also has multiple classrooms between different places difference classroom to be same as above a class
The demand of remote interactive teaching；Teacher not only can the common class of the above section, there are also instructor in broadcasting, live streaming, recorded broadcast requirement, can will
The convenient recycling of the lecture content of oneself, for demands such as student's review, colleague's comment, the accumulation of oneself successes achieved in teaching.It is comprehensive
Upper described, various control devices its function of using inside present classroom has already fallen behind development and demand in teaching, not
Be able to satisfy monographic experiment, education activities recycling, education individualization, Education equity demand for development, need one it is completely new
Equipment realize these functions, come the development and implementation of these education activities of power-assisted.
Based on this, teaching side is can be improved in audio-video gateway and tutoring system provided by the embodiment of the utility model
Rich, the operation complexity of simplified existing control device and professional, the expansion use scope of formula, and reduce hardware cost
And use cost, improve the performance and stability of gateway.
For convenient for understanding the present embodiment, first to audio-video gateway disclosed in the utility model embodiment
It describes in detail.
Embodiment one:
Fig. 1 is the audio-video gateway hardware structural diagram that the utility model embodiment one provides.
Audio-video gateway 100 provided by the present embodiment can be applied in teaching in classroom activity.
Referring to Fig.1, audio-video gateway 100 includes: associated built-in Linux core board 110, Android user
Feature board 120, HDMI (High Definition Multimedia Interface, high-definition multimedia interface) expansion board
130, VGA (Video Graphics Array, video transmission standard) expansion board 140, serial ports expansion plate 160 and interchanger plate
150, wherein Android user function plate 120 is configured with same panel module.
Specifically, by Structured Design thinking, audio-video gateway 100 is divided into using Structured Design thinking
Linux kernel core 110, Android user function plate 120, HDMI expansion board 130, VGA expansion board 140, serial ports expansion plate 160,
The different expansion board such as interchanger plate 150 are for extending different applications.
Further, Linux kernel core 110 can also be at least two, and pass through PCIe between Linux kernel core 110
(Peripheral Component Interconnect express, high speed serialization computer expansion bus standard) connecting plate
It is attached.And each Linux kernel core 110 can also connect different HDMI expansion board 130 and/or VGA expansion board
140.In turn, which forms the interactive teaching gateway an of heavyweight, has more video inputs
Output interface and stronger coding and decoding video ability.
Here, audio-video gateway 100 is by using built-in Linux core board 110, Android user function plate
120, realize Linux and Android dual system, not only the real-time with Linux and performance is higher, stability and safety, but also
Having both android system can be convenient the more friendly user interface of exploitation, various applications is conveniently mounted directly, so that audio-video net
It closes equipment 100 to be both easy to use as general handheld terminal, the characteristics of but also with high-performance and high stability.
Further, the serial ports expansion plate 160 being connected with Linux kernel core 110 includes: that Line in interface, Mic in connect
Mouth, Line out interface, HDMI/VGA IN interface, HDMI/VGA out interface and RJ45 interface.
Further, the serial ports expansion plate 160 being connected with Android user function plate 120 include: Mic in interface,
HDMI/VGA IN interface, RJ45 interface and USB interface.
Further, Linux kernel core 110 is also configured with SATA (Serial Advanced Technology
Attachment, Serial Advanced Technology Attachment) hard disk.
Based on above-mentioned Embedded Hardware Platform hardware configuration, audio-video gateway 100, which forms, as shown in Figure 2 is
System framework, including podium level, interface layer and operation layer.As it can be seen that audio-video gateway 100 is one flat based on embedded hardware
The audio-video processing equipment of platform and embedded OS exploitation, it is integrated with various audio-video input modules and output module and sound view
Frequency processing module, and IP gateway technology is used, data exchange, the concept of routing and gateway and technical application on Internet are arrived
In classroom, the audio, video data of all inputs, output is pooled a bit, is sent to not after being handled further according to application requirement
In same audio-video network.
Next, by being described based on flow direction of the audio-video gateway 100 to audio, video and control data.
Configured with I2S interface and the audio codec (Audio being connected with I2S interface on Linux kernel core 110
Codec), and, echo suppressor is also connected between Linux kernel core 110 and serial ports expansion plate 160.Audio coding decoding
Device and echo suppressor are the important nodes of audio data flow direction.
Audio data flow direction as shown in Figures 3 and 4, system audio data source have from local sound pick-up, gooseneck wheat, hang wheat,
Power amplifier and audio processor input, have and released from computer, is had from releasing on Android user function plate 120,
Have and obtained from far-end network, Linux kernel core 110 is finally all transferred to handle, output audio is output to local amplify and is
System gives SATA hard disc storage, has and give far-end network etc. by network.
Specifically, the audio data from Android user function plate 120, at ground sound pick-up, gooseneck wheat, audio
Manage the audio data of device, computer etc., and the courseware video (no audio, what audio was walked is the channel HDMI) three from far-end network
It is mutual exclusion between person, passing through I2S again by one-out-three virtual channel, (Inter-IC Sound, integrated circuit built-in audio are total
Line) Audio Codec is given, Audio Codec exports the function of locally amplifying to power amplifier again and passes through wireless MIC or gooseneck wheat
It is connected to echo suppressor MIC_IN, in order to guarantee record to whole sound, by (the selection of output all the way of echo suppressor
Mix_out interface, the interface include all sound into echo suppressor) sound pick-up that is transmitted back to Linux kernel core 110 connects
On mouth.
Remote interaction needs IPC (Industrial Personal Computer, enhanced personal computer) to participate in, far
The audio of journey interaction also comes from IPC, therefore the AEC_OUT interface for being connected to echo suppressor into the audio input of IPC is defeated
Out.
Video data flows to as shown in figure 5, video is the most important data of audio-video gateway 100, video data sheet
Body is complex, has the interfaces such as different interface type such as HDMI, VGA, SDI to be transmitted through and to be analog video data, also has from net
Network or local mobile terminal, which are transmitted through, to be compressed video data；All compressed video datas will be decompressed and be reduced into
Uncorrected data requires to handle again after sampling and digitizing for all incoming video signals.
Control data flow is as shown in fig. 6, control data flow is divided into two kinds of situations, and one is interaction gateway product, interactions
Gateway product mainly passes through remote controler or mouse and sends order to Android user function plate 120, and a portion order passes through
Network is transmitted to Linux kernel core 110.Another situation is mid-product, and mid-product mainly passes through control panel (desktop
Controller or PAD controller) Linux kernel core 110 is operated.Android user function plate 120 and the Linux kernel heart
Plate 110 all supports that network management is operated and controlled, i.e., is controlled by backstage.
As it can be seen that audio-video Network Management Equipment provided by the above embodiment, using the insertion of high-performance, low-power consumption and high stability
Formula hardware platform has higher stability, greatly avoids teaching accident；Moreover, 12 road 1080P@, 30 frame can be provided
In the case where high definition coding/decoding capability (general PC machine can only accomplish 4 tunnels or so), Overall Power Consumption only has several watts, less than one PC machine
1/20th；In addition, this equipment eliminates conventional fan cooling structure, noise is greatly reduced.
Embodiment two:
Fig. 7 is the tutoring system schematic diagram that the utility model embodiment two provides.
Referring to Fig. 7, tutoring system includes audio-video gateway 100 provided by above-described embodiment, further includes regarding with sound
Audio frequency apparatus 200, video equipment 300 and the control equipment 400 that frequency gateway 100 is respectively connected with.
Specifically, in conjunction with Fig. 8, audio frequency apparatus 200 includes local sound pick-up in audio system, gooseneck wheat, hangs wheat etc., depending on
Frequency equipment 300 is included video camera, the remote interaction display etc. of academics and students, controls equipment 400 including notebook etc..
According to function, audio frequency apparatus 200 can be divided into audio input device and audio output apparatus, and video equipment 300 can divide
For video input apparatus and picture output device.
The audio input device such as local sound pick-up, computer, Android user function version, the audio data sources of acquisition are defeated
It send to audio-video gateway 100, audio-video gateway 100 exports after being handled audio data sources to audio frequency apparatus
The audio output apparatus such as local public address system/far-end network in 200.
The video data source of acquisition is delivered to audio-video gateway by the video input apparatus in video equipment 300
100, picture output device of the output into video equipment 300 after audio-video gateway 100 handles video data source；
Specifically, video data source includes analog video data and compressed video data.Audio-video gateway 100 is by mould
Quasi- video data carries out digitized processing, output digital video data；Audio-video gateway 100 carries out compressed video data
Decompression reduction, exports naked video data.
Equipment 400 is controlled by operation output control command, and control command is sent to audio-video gateway 100.
Specifically, interaction gateway product, which mainly passes through remote controler or mouse, sends life to Android user function plate 120
It enables, a portion order is transmitted to Linux kernel core 110 by network；Mid-product mainly by control panel come pair
Linux kernel core 110 is operated.
Various teaching application is organically fused in audio-video gateway by the present embodiment, an audio-video gateway
It may be implemented different education activities, for example mobile function of attending class, discussion type instructional function, (strange land is same as above remote interactive teaching
One class) function, instructor in broadcasting's live streaming and the multi-teaching-methods such as recorded broadcast function.
Above-mentioned multiple utility model embodiments bring it is following the utility model has the advantages that
Audio-video gateway and tutoring system provided by the utility model, including be respectively connected with audio-video gateway
Audio frequency apparatus, video equipment and control equipment, wherein audio-video gateway includes: associated built-in Linux core
Plate, Android user function plate, HDMI expansion board, VGA expansion board, serial ports expansion plate and interchanger plate.The utility model passes through
Audio frequency apparatus, video equipment and control equipment are organically blended and are integrated by audio-video gateway, not only enrich teaching method,
And the operation complexity of existing control device and professional is simplified, expand use scope；Meanwhile audio-video gateway
By using built-in Linux core board and Android user function plate, hardware cost and use cost are greatly reduced, again
Has the characteristics of high-performance and high stability.
Tutoring system provided by the embodiment of the utility model has phase with audio-video gateway provided by the above embodiment
Same technical characteristic reaches identical technical effect so also can solve identical technical problem.
In the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the utility model can integrate in one processing unit,
It can be each unit to physically exist alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, this is practical
Substantially the part of the part that contributes to existing technology or the technical solution can be in other words for novel technical solution
The form of software product embodies, which is stored in a storage medium, including some instructions to
So that computer equipment (can be personal computer, server or the network equipment an etc.) execution the utility model is each
The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk
Etc. the various media that can store program code.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of audio-video gateway characterized by comprising associated built-in Linux core board, Android user
Feature board, HDMI expansion board, VGA expansion board, serial ports expansion plate and interchanger plate, wherein the Android user function plate is matched
It is equipped with same panel module.
2. audio-video gateway according to claim 1, which is characterized in that the institute being connected with the Linux kernel core
Stating serial ports expansion plate includes: Line in interface, Mic in interface, Line out interface, HDMI/VGA IN interface, HDMI/VGA
Out interface and RJ45 interface.
3. audio-video gateway according to claim 1, which is characterized in that with the Android user function plate phase
The serial ports expansion plate even includes: Mic in interface, HDMI/VGA IN interface, RJ45 interface and USB interface.
4. audio-video gateway according to claim 1, which is characterized in that the Linux kernel core is at least two,
And the Linux kernel core is attached by PCIe connecting plate.
5. audio-video gateway according to claim 4, which is characterized in that each Linux kernel core connection is not
The same HDMI expansion board and/or VGA expansion board.
6. audio-video gateway according to claim 1, which is characterized in that be configured with I2S on the Linux kernel core
Interface and the audio codec being connected with the I2S interface.
7. audio-video gateway according to claim 1, which is characterized in that further include being connected to the Linux kernel heart
Echo suppressor between plate and serial ports expansion plate.
8. audio-video gateway according to claim 1, which is characterized in that the Linux kernel core is also configured with
SATA hard disc.
9. a kind of tutoring system, which is characterized in that including the audio-video gateway as described in any one of claim 1~8, also wrap
Include the audio frequency apparatus being respectively connected with the audio-video gateway, video equipment and control equipment；
The audio data sources of acquisition are delivered to the audio-video gateway by the audio input device in the audio frequency apparatus,
Audio output of the output into the audio frequency apparatus is set after the audio-video gateway is handled the audio data sources
It is standby；
The video data source of acquisition is delivered to the audio-video gateway by the video input apparatus in the video equipment,
Video output of the output into the video equipment is set after the audio-video gateway handles the video data source
It is standby；
The control command is sent to the audio-video gateway and is set by the control equipment by operation output control command
It is standby.
10. system according to claim 9, which is characterized in that the video data source includes analog video data and pressure
Contracting video data；
The analog video data is carried out digitized processing, output digital video data by the audio-video gateway；
The compressed video data is carried out decompression reduction by the audio-video gateway, exports naked video data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089955.9U CN208540071U (en) | 2018-07-10 | 2018-07-10 | Audio-video gateway and tutoring system |
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| CN201821089955.9U CN208540071U (en) | 2018-07-10 | 2018-07-10 | Audio-video gateway and tutoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600828A (en) * | 2018-07-10 | 2018-09-28 | 北京竞业达数码科技股份有限公司 | Audio and video gateway device and tutoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600828A (en) * | 2018-07-10 | 2018-09-28 | 北京竞业达数码科技股份有限公司 | Audio and video gateway device and tutoring system |
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