CN207399385U - A kind of bimodulus apparatus for processing multimedia data and system - Google Patents
A kind of bimodulus apparatus for processing multimedia data and system Download PDFInfo
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Abstract
The utility model discloses a kind of bimodulus apparatus for processing multimedia data and system, including：On-site programmable gate array FPGA, the programmable gate array are connected with data transmission circuit；The programmable gate array is also connected with optical fiber and internet respectively.On-site programmable gate array FPGA obtains data by data transmission circuit, then it is optical fiber or internet to be selected to be transmitted different types of data by FPGA, optical fiber is suitble to transmit unpacked data, internet is suitable for transmitted data compressing, the efficiency of transmission of multi-medium data is improved, reduces the delay of audio signal, reduces packet loss, video frequency data quality is improved simultaneously, reduces the memory space that video occupies.
Description
Technical field
The utility model embodiment be related to field of communication technology more particularly to a kind of bimodulus apparatus for processing multimedia data and
System.
Background technology
IP (Internet Protocol, the agreement interconnected between network) scheme of audio and video is that network technology is regarded with sound
The perfect adaptation of frequency encoding and decoding, its development and change newly cease manner of breathing with Ethernet and constantly pushing away for advanced audio/video coding technology
It closes.
At present, during audio, video data (also known as multi-medium data) underway long distance transmission, generally use network (i.e. IP
Network) transmission mode.But in actual application, IP transmission modes influenced by network environment it is bigger, in network
Links phenomena such as inevitably causing the delay of video/audio signal or even cause packet loss, influence the matter of video/audio signal
Amount.In addition, IP transmission mode generally use lossy compression methods, in turn result in the decline of video quality.If the lossless video of selection
Compression, compression efficiency is again relatively low, can only be compressed to one or so of the nothing point of former video, the memory space of occupancy is larger.
Utility model content
The utility model provides a kind of bimodulus apparatus for processing multimedia data and system, can reduce prolonging for audio signal
Late, packet loss is reduced, while improves video frequency data quality, reduces the memory space that video occupies.
In a first aspect, the utility model embodiment provides a kind of bimodulus apparatus for processing multimedia data, including：
On-site programmable gate array FPGA, the programmable gate array are connected with data transmission circuit；The programmable gate
Array is also connected with optical fiber and internet respectively.
Further, the field programmable gate array is connected by digital signal processing chip DSP with internet.
Further, the field programmable gate array and the digital signal processing chip are connected with control module.
Further, the programmable gate array is connected by photoelectric conversion module with optical fiber.
Further, the data transmission circuit includes video decoding circuit, control signal circuit and audio reception electricity
Road.
Further, the data transmission circuit includes video decoding circuit, control signal circuit and audio transmission electricity
Road.
Further, clock module is further included.
Further, power module is further included.
Second aspect, the utility model additionally provides a kind of bimodulus multimedia data processing system, including bimodulus multimedia
Data sending apparatus and bimodulus Multimedia Data Receiving Arrangement；
The bimodulus multi-medium data emitter includes：Primary scene programmable gate array FPGA, the primary scene
Programmable gate array is connected with first data transmission circuit；The FPGA is also connected with optical fiber and internet respectively；Described
One data transmission circuit includes audio receiving circuit, video decoding circuit and control signal circuit；
The bimodulus Multimedia Data Receiving Arrangement includes：Secondary scene programmable gate array FPGA, the secondary scene
Programmable gate array is connected with the second data transmission circuit；The secondary scene programmable gate array also respectively with the optical fiber and
The internet connection；The data transmission circuit includes audio emission circuit, video decoding circuit and control signal circuit；
The audio emission circuit is used to send voice data to the audio receiving circuit.
Further, the digital signal processing chip and internet that the primary scene programmable gate array passes through DM81x
Network connects；
The secondary scene programmable gate array is thought Hi3536 processors by sea and is connected with internet.
The utility model embodiment on-site programmable gate array FPGA obtains data by data transmission circuit, then passes through
FPGA is optical fiber or internet to be selected to be transmitted different types of data, and optical fiber is suitble to transmit unpacked data (such as sound
Frequency evidence), internet is suitable for transmitted data compressing (such as picture or frame picture), improves the efficiency of transmission of multi-medium data, drop
The delay of bass signal reduces packet loss, while improves video frequency data quality, reduces the memory space that video occupies.
Description of the drawings
Fig. 1 is the system framework schematic diagram of a bimodulus multimedia data processing system in the utility model embodiment.
Fig. 2 is the structure diagram of a bimodulus apparatus for processing multimedia data in the utility model embodiment；
Fig. 3 is the structure diagram of a sending node Tx in the utility model embodiment；
Fig. 4 is the structure diagram of a receiving node Rx in the utility model embodiment；
Fig. 5 is the structure diagram of a bimodulus multimedia data processing system in the utility model embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant with the utility model rather than entire infrastructure are illustrated only for ease of description, in attached drawing.
The IP scenario of audio and video is the perfect adaptation of network technology and audio/video encoding/decoding, its development and change and Ethernet
It is new closely bound up with constantly pushing away for advanced audio/video coding technology.Compared to other audio video transmission schemes, the IP of audio and video
Scheme takes full advantage of the opening of IP network, and management software is powerful, and video distribution, browsing store very convenient, equipment
A piece cable of access is only needed to can be used, resource-sharing is more convenient, and multi-user's browsing need not establish multiple physical connections, be
System is explorative good, and dilatation is convenient.
Transmission medium of the optical fiber as communication signal, tool have the advantage that：Loss is few, has certain bandwidth and dispersion is few, connect
Line is easy, and reliability is high, relatively simple to manufacture, cheap etc..And in audio-visual system, above-mentioned advantage becomes apparent：Light
Fine antijamming capability is extremely strong, and considerations is completely dispensed with for electromagnetic interference, and optical fiber is because of being optical transport, without electromagnetic circuit, because
This can the other problems that come of completely isolated " ring Earth noise " or ground level different band.Current audio and video are to height
Clearly, the direction of ultra high-definition is developed, even the transmission development of the audio-video signal of multichannel.This has higher want for bandwidth
It asks, and for optical fiber, simple optical fiber message transmission rate can reach several Gbps even Gbps up to a hundred, be fully able to meet
The high definition of 2K, 4K, even 8K, the request signal transmission of ultra high-definition for high definition, ultra high-definition vision signal, can all have transmission
Apart from the problem of.General cable transmission is several meters to tens meters, and in multimedia application system, generally require a DVI,
The video interfaces signal such as VGA is transmitted at a distance.But believed using output is always present with during common cable long distance transmission
There is phenomena such as fuzzy, hangover, pink colour in number difference, the image for being easily disturbed, showing.At this point, be transmitted using optical fiber,
Problems can be solved, the transmission range of multimode fibre is at hundreds of meters, and the transmission range of single mode optical fiber is at several kilometers to tens
Kilometer differs, transmission medium of the optical fiber as audio and video, has signal attenuation less, long transmission distance, security performance is good, anti-interference
The features such as ability is strong, the optical fiber that audio and video provide in the market, which transmits it, to transmit multiway images on a core, additionally it is possible to real
The simultaneous interpretation of the signals such as existing audio, control signal, infrared.
But the fatal defects without compression, no-delay exactly IP network transmission plan of audio and video optical fiber transmission.Sound regards
The IP transmission mode selections of frequency are that the audio and video of input are compressed, and the bandwidth of signal transmission are saved, convenient for audio and video
Transmission and storage.And cost is to bring inevitable image quality decrease, and uncompressed optical fiber transmission plan is used, fully
Using the high bandwidth transmission video of optical fiber, video quality can be ensured to greatest extent, while almost without delay, image
Integrality it is relatively good, but since picture signal is without compression, the information content of image is bigger in addition, is inconvenient in depositing
Storage.
The IP and the double mode transmission mode of optical fiber that the utility model embodiment provides, have taken into full account above two pattern
Feature is maximized favourable factors and minimized unfavourable ones, and provides a kind of selection scheme suitable for different application occasion, advantageously accounts for audio and video medium and long distance biography
Defeated, storage, operation.With network and two kinds of interfaces of optical fiber, all videos interface (DP, VGA, DVI, HDMI, CVBS etc.), audio
Interface (3.5mm, phoenix terminal, card agriculture, lotus flower head, big two core, big three core), control interface (infrared, network, RS232/485,
USB etc.) be uniformly converted into optical fiber and network interface, make complicated professional AV technologies be converted into it is more convenient, be easier to understand, be i.e. slotting
IPization technology i.e. and optical signal transmission technology.It can be widely applied to Police Command Center, multimedia teaching, multifunctional conference
The Room, large screen splicing engineering, command scheduling, energy construction etc..
When the middle and long distance transmission of audio and video, generally using optical fiber transmission and network transmission both of which, network passes
Defeated mode make use of the opening of IP network, be advantageous to transmission, forwarding, storage, browsing of video/audio signal etc., manager
Just, but in actual application, IP transmission modes are influenced bigger, the links in network by network environment, can not
Avoid phenomena such as causing the delay of video/audio signal or even cause packet loss, seriously affect the quality of video/audio signal.General ip
Transmission mode is all the lossy compression method of selection, also inevitably causes the decline of video quality, if the video that selection is lossless
Compression, compression efficiency is again relatively low, can only generally be compressed to 5 times or so of former video, runs into the occasion for needing to store, occupied
Memory space is quite big, and high-definition video signal uses lossless compression, also to occupy the bandwidth of 200~500Mbps, also be only suitable for
It is applied in the LAN of gigabit, is not easy to transmit in wide area network.
The optical fiber transmission of video/audio signal due to the high bandwidth of optical fiber, loss less, dispersion it is few, wiring is easy, and reliability is high,
Relatively simple to manufacture, transmission security is high, lower-price characteristic, be quite suitable for the middle length of high definition ultra high-definition vision signal away from
From transmission, along with optical transport speed quickly, so the optical fiber transmission plan real-time performance of video/audio signal is good, almost without
What delay, the loss of light path are lacked, and also difficulty has phenomena such as packet loss frame losing.The general encoding scheme using no compression of optical fiber transmission,
The quality of audio and video is good.But found in actual application, client is when optical fiber transmission plan is selected, it is necessary to some
Important signal is stored, it is necessary to be configured additional codec and storage device, be caused cost increase, operation not side
Just, link increases, controls complexity.
For these reasons, the utility model provides the double mode sound of a kind of network-based IP patterns and fiber mode
Video Transmission Scheme, to meet client's audio video transmission matter best to audio-video signal storage, the real-time transmitted, offer
Amount.
Fig. 1 be the utility model based on system framework figure, including dual mode transducer, internet exchange system, fiber-optic signal
Switching system, local source, KVM remote control equipments, input node, output node and screen.Wherein, bimodulus switch bag
Include sending node Tx and receiving node Rx.Sending node Tx and fiber-optic signal switching system, local source, KVM remote controls
Equipment is connected with internet exchange system.Receiving node Rx is connected with fiber-optic signal switching system, screen and internet exchange system.Net
Network exchange system is also connected with input node and output node.Sending node Tx sends optical signals to fiber-optic signal switching system
System, receiving node Rx and screen are sent to by transformed signal.Sending node Tx can receive local source and KVM is remote
The signal that process control is sent.Receiving node Rx can send the audio-video signal of decoding process to screen.
Illustratively, double mode conversion Tx is used to that the local audio-video signal source such as camera, computer and control will to be come from
The control signal of interface receives, and is then converted into optical fiber and IP signals, by light path or network transmission, reaches double mode conversion
Device Rx ends.Double mode converter Rx receives for the audio and video of automatic network in future or light path and control signal, by corresponding
After audio and video processing, give the equipment such as display and shown.The control signal of simultaneous interpretation removes control relevant device, using double-fiber
Double mode converter can also complete the reverse transfer of control signal, that is to say, that control signal can be passed from double mode Rx
It is defeated to arrive Tx ends, complete the functions such as KVM (Keyboard video Mouse).
Fig. 2 is a kind of structure diagram of the bimodulus apparatus for processing multimedia data provided in the utility model is implemented, should
Device as sending node Tx and the physical hardware of receiving node Rx, including：
On-site programmable gate array FPGA 1, the programmable gate array 1 are connected with data transmission circuit 2；It is described programmable
Gate array 1 is also connected with optical fiber 3 and internet 4 respectively.
In one implementation, as shown in figure 3, hardware of the bimodulus apparatus for processing multimedia data as sending node Tx
Equipment.At this point, on-site programmable gate array FPGA 1 can select the XC7A100T chips of XILINX companies.The chip uses
28nm encapsulation technologies, the ratio of performance to price is high, comprising 1.066Mb/s DDR3 technologies, supports four road 6.6G high speed serializations GTP transmitting-receivings
Device, 100K logic units, 240 DSP Slice, more than 300 I/O pins, the LVDS of 1.2Gbps, power consumption compare Spartan6 systems
The FPGA of row reduces 50%, disclosure satisfy that the optical fiber transmission encoding function of audio and video in design, control signal.
The operation principle of dual mode transducer transmitting terminal is to be connected to the audio signal of sending node Tx, vision signal, corresponding
The peripheral equipment of control interface, by video decoding circuit, audio receiving circuit, control signal circuit, (three is referred to as number respectively
According to transmission circuit) it is connected with FPGA.The control signal of sending node Tx to receiving node Rx is defined as downgoing control signal, is received
The control signal of node R x to sending node Tx is uplink control signal.FPGA is by received audio-video signal by related
Image and audio frequency process after, be packaged together with downgoing control signal, handled using serialization, the GTP included via FPGA
Transceiver is connected to photoelectric switching circuit, is converted into being transferred to fiber optic network after optical signal, while by the uplink from optical fiber
After control signal de-serialization, the control signal circuit of connection, the connected peripheral equipment of control are sent to.FPGA will be received
The control signal that vision signal, audio signal, peripheral unit control port are sent sends dsp chip to, and dsp chip will receive
Vision signal, audio signal carry out video compress, audio compression, be then converted into IP signals, be sent to the network port, realize hair
The IP patterns sent, while the control signal of the control peripheral equipment of dsp chip automatic network in future sends FPGA to control periphery
Equipment.
In another realization method, as shown in figure 4, bimodulus apparatus for processing multimedia data is as the hard of receiving node Rx
Part equipment.At this point, FPGA can select identical chip.
The receiving terminal of double mode conversion is actually the inverse process sent, and operation principle is：From fiber optic network
Receive signal, be connected by photoelectric switching circuit with FPGA, FPGA after unpacking, de-serializing, isolate audio, video,
Downgoing control signal.Carry out the audio-video signal and control signal of automatic network, think Hi3536 processors to audio and video solution by sea
After compression and related audio and video processing, FPGA is sent to.FPGA will come from network or optical fiber audio-video signal, carry out
Judgement, selects best performance all the way, can also be specified by user all the way, is sent to video coding circuit respectively, audio sends electricity
Road, control signal circuit are sent to the peripheral hardware of associated picture display device, audio-frequence player device and required control.Peripheral hardware simultaneously
The control signal that interface is sent is divided into two-way, all the way after the serialization processing of FPGA, photoelectric switching circuit is sent to, into light
Fibre transmits, and in addition a routing FPGA sends Hi3536 processor chips to, and network is sent to after IPization, outer Tx ends to be controlled to connect
Peripheral equipment.
Further, the field programmable gate array is connected by digital signal processing chip DSP with internet.
The function of digital signal processing chip DSP can be integrated in FPGA, independent dsp chip can also be used to carry out
It realizes.In order to facilitate the complexity for safeguarding reduction circuit, it is preferred that be connected using dsp chip with internet.
In one implementation, hardware device of the bimodulus apparatus for processing multimedia data as sending node Tx.At this point,
The dsp chip of DM81x, DM81x are a dsp chips of Ti companies, and what is selected in the utility model is
TMS320DM8148DaVinciTM, it is a highly integrated, programmable vision processor.Its programmability mainly includes one
The ARM Cortex-A8RISC CPU of a ARMv7 frameworks IGHz, a TIC674x VLIW Floating-point DSP kernel, one programmable
High clear video image coprocessor (HDVICP v2), support H.264, the coding and decodings such as MPEG2, VC1, MPEG4, SP/ASP turn
Code operation additionally there are one SGX5303D image engines, can share ordinary video many on DSP core and imaging is calculated
Method.Such as the operations such as video scaling, HQ images be anti-aliasing, serial ATA (SATA) 3.0Gbps controllers with integrated PHY can
It, can be abundant to directly drive the control ports such as hard disk, the storage of completion compression rear video, abundant USB, UART, SPI, I2C
Meet the functions such as the HD video compression storage in design.
In another realization method, dual mode reception node R x and the main distinction of sending node Tx are, in dsp chip
In with Hi3536 replace sending node Tx DM81x processors.Hi3536 embeds tetra- cores of ARM Cortex A17, maximum functional frequency
Rate 1.4GHz and ARM Cortex A7 monokaryons, peak frequency 900MHz integrate Mali-T720GPU, audio and video input and output
Interface, network interface, memory interface, control class rich interface, have powerful coding/decoding capability.Particularly in terms of decoding,
It can support simultaneously：H.264/H.265, H.264 4 4K@30fps are decoded encodes with 2 1080P@30fps, 16 1080p@
H.264/H.265, H.264 30fps is decoded encodes with 2 1080P@30fps, and H.264/H.265 9 1080p@30fps solve
H.264, code and a 4K@30fps are encoded, and H.264/H.265 32 720p@30fps decode and 4 720p@30fps
H.264 encode.
Further, the field programmable gate array and the digital signal processing chip are connected with control module.
Further, the programmable gate array is connected by photoelectric conversion module with optical fiber.
Further, when bimodulus apparatus for processing multimedia data is as sending node Tx, the data transmission circuit bag
Include video decoding circuit, control signal circuit and audio receiving circuit.
Further, when bimodulus apparatus for processing multimedia data is as receiving node Rx, the data transmission circuit bag
Include video decoding circuit, control signal circuit and audio transtation mission circuit.
Further, clock module is further included.Always module is used to provide temporal information for FPGA and dsp chip, so as to
Above-mentioned two chip synchronizes in time.
Further, power module is further included.Power module is used to provide electric energy for chips such as FPGA and DSP
Fig. 5 is a kind of structure diagram for bimodulus multimedia data processing system that the utility model embodiment provides, and is wrapped
Include bimodulus multi-medium data emitter and bimodulus Multimedia Data Receiving Arrangement.Wherein, bimodulus multi-medium data emitter
Above-mentioned sending node Tx is equivalent to, bimodulus Multimedia Data Receiving Arrangement is equivalent to above-mentioned receiving node Rx.
The bimodulus multi-medium data emitter includes：Primary scene programmable gate array FPGA, the primary scene
Programmable gate array is connected with first data transmission circuit；The FPGA is also connected with optical fiber and internet respectively；Described
One data transmission circuit includes audio receiving circuit, video decoding circuit and control signal circuit；
The bimodulus Multimedia Data Receiving Arrangement includes：Secondary scene programmable gate array FPGA, the secondary scene
Programmable gate array is connected with the second data transmission circuit；The secondary scene programmable gate array also respectively with the optical fiber and
The internet connection；The data transmission circuit includes audio emission circuit, video decoding circuit and control signal circuit；
The audio emission circuit is used to send voice data to the audio receiving circuit.
Further, primary scene programmable gate array is connected by the digital signal processing chip of DM81x with internet
It connects；The secondary scene programmable gate array is thought Hi3536 processors by sea and is connected with internet.
With reference to Fig. 1, which can be applied to Police Command Center, multimedia teaching, the multifunctional conference Room, large-size screen monitors
Splice each side such as engineering, command scheduling, energy construction, entire chain routing signal source, display device, fiber optic network, IP network
Transmission equipment is formed, and signal source can be the audio-video signal from computer, video camera, network etc., and display device can be with
It is large-size screen monitors, projector, display etc., fiber optic network includes fibre optic transmission equipment, optical fiber switching matrix, completes the transmission of optical signal
With switching, specific implementation process is as follows：
1) audio-video signal that audio-video signal source is sent, is received, sending node Tx believes audio and video by sending node Tx
Number optical signal and IP signals being converted into, be respectively transmitted to light path or network, optical path signal is allocated by optical fiber switching matrix,
IP signals are allocated by the interchanger with multicast functionality.
2) receiving node Rx is received distributes the optical signal to come and IP signals by interchanger and fiber matrix, is solved respectively
String unpacks, the processing operations such as decompression, recovers audio therein, video, control signal.
3) FPGA in receiving node Rx respectively carries out the audio-video signal from light path and network according to mission requirements
Judge, select satisfactory signal all the way.
4) the satisfactory signal all the way selected by, by inside FPGA in receiving node Rx audio, video handle mould
After block, control signal module carry out relevant audio and video, control signal processing, audio sending module, Video coding are sent to
Module, control signal processing unit appear in corresponding audio-video interface, on control interface, corresponding audio are controlled to broadcast
Put equipment, video display apparatus, control signal equipment, output video, audio and control class signal；
5) reverse control signal is usually keyboard, mouse type signal in practical application, is connect by the control interface of receiving terminal
It receives, is converted into optical signal, IP signals respectively via FPGA, Hi3536, pass to and send on terminal, control is connected with sending terminal
Relevant device, be exactly computer desktop for controlling source etc. in practical application, complete KVM functions.
The bimodulus multimedia data processing that the utility model embodiment provides has following advantageous effects：
1) reliability of system operation is enhanced, system has network and light path simple two-way signal, and light path or network occur
When failure, the normal operation of system is not interfered with；
2) can be shown with best audio-visual quality, such as：When requiring at least to be delayed, system can be certainly
It is dynamic that optical path signal is selected to be shown, the influences such as packet loss, frame losing caused by network environment deterioration will not be subject to；
3) the related audio and video processing function of the system integration：Image scaling, luminance contrast adjusting, shearing/cut, go every
The functions such as row, interlacing are shown, the filtering of volume adjustment, audio, can be according to the state of video display apparatus, with video display apparatus
Optimum resolution output, the interested topography's output of client and adjusting of audio etc.；
4) send terminal Tx and reserved SATA interface, the audio and video storage to signal source can be completed as long as hard disk is connected
Function, if mating streaming media server, it is easy to complete audio and video distribution with storage, live streaming, program request, virtually be broadcast live, shear,
The functions such as transcoding；
5) system using RTSP, RTMP agreement send with transmit audio and video, can be easy to on the market encoder, solution
Code device, streaming media server docking, compatibility is relatively good, is advantageous to systematic difference；
6) system employs modularized design, convenient for installation and maintenance, has merged image procossing, audio/video encoding/decoding function,
A tractor serves several purposes is equivalent to, or perhaps multimachine is unified, and avoids the overlapping investment of client, is also beneficial to upgrade.
Note that it above are only the preferred embodiment of the utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted and substituted without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended
Right determine.
Claims (10)
1. a kind of bimodulus apparatus for processing multimedia data, which is characterized in that including：
On-site programmable gate array FPGA, the programmable gate array are connected with data transmission circuit；The programmable gate array
Also it is connected respectively with optical fiber and internet.
2. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that the field-programmable gate array
Row are connected by digital signal processing chip DSP with internet.
3. bimodulus apparatus for processing multimedia data according to claim 2, which is characterized in that the field-programmable gate array
Row and the digital signal processing chip are connected with control module.
4. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that the programmable gate array leads to
Photoelectric conversion module is crossed to be connected with optical fiber.
5. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that the data transmission circuit bag
Include video decoding circuit, control signal circuit and audio receiving circuit.
6. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that the data transmission circuit bag
Include video decoding circuit, control signal circuit and audio transtation mission circuit.
7. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that further include clock module.
8. bimodulus apparatus for processing multimedia data according to claim 1, which is characterized in that further include power module.
9. a kind of bimodulus multimedia data processing system, which is characterized in that including bimodulus multi-medium data emitter and bimodulus
Multimedia Data Receiving Arrangement；
The bimodulus multi-medium data emitter includes：Primary scene programmable gate array FPGA, the primary scene can be compiled
Journey gate array is connected with first data transmission circuit；The FPGA is also connected with optical fiber and internet respectively；First number
Include audio receiving circuit, video decoding circuit and control signal circuit according to transmission circuit；
The bimodulus Multimedia Data Receiving Arrangement includes：Secondary scene programmable gate array FPGA, the secondary scene can compile
Journey gate array is connected with the second data transmission circuit；The secondary scene programmable gate array also respectively with the optical fiber and described
Internet connects；The data transmission circuit includes audio emission circuit, video decoding circuit and control signal circuit；It is described
Audio emission circuit is used to send voice data to the audio receiving circuit.
10. bimodulus multimedia data processing system according to claim 9, which is characterized in that the primary scene can be compiled
Journey gate array is connected by the digital signal processing chip of DM81x with internet；
The secondary scene programmable gate array is thought Hi3536 processors by sea and is connected with internet.
Priority Applications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064937A (en) * | 2019-12-23 | 2020-04-24 | 威创集团股份有限公司 | Video optical fiber seat receiving device |
| CN113301286A (en) * | 2021-05-13 | 2021-08-24 | 合肥开拓导航控制技术有限责任公司 | FPGA-based uplink and downlink data processing and analog video image acquisition system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064937A (en) * | 2019-12-23 | 2020-04-24 | 威创集团股份有限公司 | Video optical fiber seat receiving device |
| CN113301286A (en) * | 2021-05-13 | 2021-08-24 | 合肥开拓导航控制技术有限责任公司 | FPGA-based uplink and downlink data processing and analog video image acquisition system |
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