CN106231227A - For transmission and the device of converted image signal - Google Patents
For transmission and the device of converted image signal Download PDFInfo
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- CN106231227A CN106231227A CN201610639887.8A CN201610639887A CN106231227A CN 106231227 A CN106231227 A CN 106231227A CN 201610639887 A CN201610639887 A CN 201610639887A CN 106231227 A CN106231227 A CN 106231227A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
Abstract
The invention discloses a kind of device for transmission with converted image signal, for providing the picture signal needed for test for display module, this device includes: source images signal sending end, is used for receiving source images signal and this source images signal being converted into optical signal；Picture signal end of convert, for receiving this optical signal and this optical signal being converted into the image signal format that display module is capable of identify that；Configuration signal transmission link, for transmitting, for this source images signal sending end and this picture signal end of convert, the configuration signal that host computer issues.The present invention can overcome the signal attenuation distortion owing to various electromagnetic interference and/or variations in temperature cause, signal lag asynchronous, reliable and stable long-distance transmissions that source images signal is carried out, or reliable and stable source images signal is converted into the image signal format that display module is capable of identify that.
Description
Technical field
The invention belongs to technical field of image signal processing, more particularly, to a kind of transmission sources picture signal should
Source images signal is converted into the device of the image signal format that display module is capable of identify that.
Background technology
Along with the development of Display Technique, the large-sized display devices of ultra high-definition 4K resolution (3840 × 2160) is the most general
And, very high definition 8K resolution (7680 × 4320), the large-sized display devices amount of also beginning to of 10K resolution (10240 × 4320)
Produce, in order to reach the display performance of ultrahigh resolution, it is ensured that the reliability of use, these display device modules many employings V-BY-
The Novel video interfacings such as ONE, DP, MIPI receive picture signal.
DP1.3 (Display Port 1.3) consensus standard is the DP interface standard specification that VESA organizes up-to-date release, should
The highest 5k resolution (5120 × 2880) of supporting of agreement, each data LANE (channel) can reach the data of 8.1Gbps
Transfer rate, and V-BY-ONE agreement can support the resolution of 8K, 10K especially.The novel display interface such as V-BY-ONE, DP1.3
Display module is mainly detected by display still image.At present, the module manufacturer having part large-scale starts to produce band
Having the display module of V-BY-ONE, DP1.3 interface, these module manufacturers are for reducing product line production cost and improving product market
The consideration of competitiveness, puts screen test and still desires to be continuing with producing a large amount of LVDS existed on line V-BY-ONE, DP1.3 module
(Low-Voltage Differential Signaling low-voltage differential signal), TTL (Transistor Transistor
Logic transistor-transistor logic) etc. image signal source, but these LVDS, TTL image signal sources are far from meeting V-BY-
The ultimate resolution of ONE, DP1.3, even if the high standard LVDS/TTL image signal source of multiple link transmission mode can be supported
Also the ultimate resolution of V-BY-ONE, DP1.3 cannot be supported.On the other hand, the electric circumstance that display module produces line is severe, has
Various serious electromagnetic interference, have the change of different temperatures to test, due to lattice LVDS/TTL image signal source and tested display mould
Group distant, the transmission of signal is vulnerable to the unfavorable factor impacts such as electromagnetic interference, attenuation distortion, signal lag be asynchronous,
Image test signal can be caused to morph causes a screen test to have the different situation of various picture, thus also cannot be normally carried out lattice
The point screen test of LVDS/TTL module.
For this reason, it may be necessary to research one the picture signals such as LVDS, TTL can be converted under various complex environments LVDS,
The chromacoder of the picture signals such as TTL, DP, MIPI or V-BY-ONE, and this chromacoder can make full use of module
Produce the LVDS/TTL image signal source that line exists in a large number so that common LVDS/TTL image signal source is by this signal conversion dress
Put and the module of the interface standards such as LVDS, TTL, DP, MIPI or V-BY-ONE can be tested.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the present invention discloses a kind of device for transmission with converted image signal, energy
Enough overcome the signal attenuation distortion owing to various electromagnetic interference and/or variations in temperature cause, signal lag asynchronous, reliable and stable
Source images signal is carried out long-distance transmissions, or reliable and stable source images signal is converted into what display module was capable of identify that
Image signal format.
For achieving the above object, the present invention provides a kind of device for transmission with converted image signal, for for showing
Module provides the picture signal needed for test, and this device includes:
Source images signal sending end, is used for receiving source images signal and this source images signal being converted into optical signal；
Picture signal end of convert, for receiving this optical signal and this optical signal being converted into the figure that display module is capable of identify that
Image signal form；
Configuration signal transmission link, for transmitting host computer for this source images signal sending end and this picture signal end of convert
The configuration signal issued.
As further alternative technical scheme, in such scheme, this source images signal sending end includes:
Image input protection module, is attached to the electromagnetism on this source images signal does for receiving this source images signal elimination
Disturb and/or surge clutter；
First PLD, for the source images this image input protection module exported according to this configuration signal
Signal reverts to frame image data bag；
Electrooptic conversion module, for being converted into optical signal by this frame image data bag.
As further alternative technical scheme, in such scheme, this configuration signal includes temperature control signals；This source figure
Image signal transmitting terminal also includes:
First thermostatic control module, for transmitting host computer by this configuration signal transmission link to this electrooptic conversion module
This temperature control signals issued.
As further alternative technical scheme, in such scheme, this configuration signal includes that source images signal link data are arranged
Column information and source images signal transfer protocol；This first PLD is provided with
Two field picture reduction and cutting unit, for believing according to this source images signal link data arrangement information and this source images
The source images signal of this image input protection module output is reverted to two field picture by number host-host protocol, and is divided into by this two field picture
The frame image data of multiple data areas；
Lossless Image Compression Algorithm unit, generates compressed file for this frame image data carries out lossless compression operation, and right
This compressed file packages to operate and generates this frame image data bag.
As further alternative technical scheme, in such scheme, this configuration signal also includes transfer clock control signal
And/or working power control signal；This first PLD is additionally provided with:
Transfer clock monitoring module, is used for by this configuration signal transmission link to this first PLD transmission
This transfer clock control signal that host computer issues and/or this working power control signal.
As further alternative technical scheme, in such scheme, this picture signal end of convert includes:
Photoelectric conversion module, is used for receiving this optical signal and this optical signal being converted into frame image data bag；
Second PLD, is used for that this frame image data bag successively carries out de-packaging operation and decompression operation will
This frame image data bag is reduced into frame image data, and according to this configuration signal, this frame image data is converted into display module energy
Enough image signal format identified.
As further alternative technical scheme, in such scheme, this configuration signal includes temperature control signals；This image
Signal end of convert also includes:
Second thermostatic control module, for transmitting host computer by this configuration signal transmission link to this photoelectric conversion module
This temperature control signals issued.
As further alternative technical scheme, in such scheme, this configuration signal includes conversion configurations signal；This is second years old
PLD is provided with
Image decompression unit is reduced into compressed file for this frame image data bag is carried out de-packaging operation, and to this compression
File carries out decompression operation and is reduced into this frame image data；
This image signal conversion cell is for being converted into display module according to this conversion configurations signal by this frame image data
The image signal format being capable of identify that.
As further alternative technical scheme, in such scheme, this configuration signal also includes change over clock control signal
And/or working power control signal；This second PLD is additionally provided with:
Change over clock monitoring module, is used for by this configuration signal transmission link to this second PLD transmission
This change over clock control signal that host computer issues and/or this working power control signal.
As further alternative technical scheme, in such scheme, this device also includes the first electro-magnetic screen layer, the second electricity
Magnetic masking layer and the 3rd electro-magnetic screen layer, this source images signal sending end is placed in this first electro-magnetic screen layer, this picture signal
End of convert is placed in this second electro-magnetic screen layer, and this configuration signal transmission link is placed in the 3rd electro-magnetic screen layer.
The invention have the advantages that
1) source images signal is converted into optical signal at source images signal sending end by the present invention, at picture signal end of convert again
Convert optical signals into the display image signal format that is capable of identify that of module, it is to avoid view data runs in transmitting procedure
Electromagnetism, white noise disturb, thus realize reliably source images signal being carried out long-distance transmissions under various complex environments, or
Reliable and stable is converted into the image signal format that display module is capable of identify that by source images signal；
2) present invention is to guarantee that reliable and stable being converted into by source images signal of energy shows that module can under complex environment
The image signal format identified, has all carried out real-time clock alignment, work to the high-speed transfer of picture signal and transformation process
Power supply calibration and thermostatic control, to guarantee that data transmission and transformation clock remains high accuracy, so that it is guaranteed that picture signal
Transmission and transformation process zero defect, interference-free carry out.
Accompanying drawing explanation
The data transmission embodiment schematic diagram of Fig. 1 LVDS of the present invention LINK；
Fig. 2 error correction coding operations of the present invention embodiment；
Fig. 3 present invention interweaves operation embodiment；
Fig. 4 view data of the present invention bag transmission stringization Processing Example；
Fig. 5 present invention is for transmission and the method flow of converted image signal.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.As long as additionally, technical characteristic involved in each embodiment of invention described below that
The conflict of not constituting between this just can be mutually combined.
It should be noted that owing to the image coding technique of the interface standards such as LVDS, TTL, DP, MIPI or V-BY-ONE is equal
For prior art, the present embodiment is only converted to the signal transmission of DP1.3 picture signal with LVDS picture signal and transformation process is
Example illustrates.
A kind of device for transmission with converted image signal disclosed in the present embodiment, this device includes one for receiving
This LVDS picture signal is also converted into the LVDS picture signal transmitting terminal of optical signal by LVDS picture signal, and one is used for receiving this light
This optical signal is also converted into the DP1.3 picture signal end of convert of DP1.3 picture signal by signal, and one transmits the single mode of this optical signal
Optical fiber, and a configuration signal transmission line electrically connecting this LVDS picture signal transmitting terminal and this DP1.3 picture signal end of convert
Cable.
In above-described embodiment, this source images signal sending end include one image input protection module, one first fpga chip,
One electrooptic conversion module, and one first thermostatic control module.Wherein, this first fpga chip is provided with LVDS image-receptive
The reduction of unit, two field picture and cutting unit, Lossless Image Compression Algorithm unit and Error Correction of Coding processing unit；This LVDS image-receptive list
Unit includes that LVDS image clock recovers module and LVDS LINK (link) image data extraction module；This two field picture reduces and divides
Cut unit and include that two field picture reduction caches and comparison module with segmentation module and view data；This Lossless Image Compression Algorithm unit includes
Parallel lossless compression modules and compression data set bag module；This Error Correction of Coding processing unit includes view data transmission coding mould
Block, high precision image transfer clock generation module, transfer clock monitoring module and image transmitting synchronize stringization module；This electric light turns
Die change block includes electro-optic conversion submodule, DWDM optical multiplexer and the first optical signal amplification submodule.It should be noted that this reality
Executing in example, use a kind of preferred version of fpga chip, fpga chip can also be with FPGAs such as APAL, GAL, CPLD
Device substitutes.
In above-described embodiment, this picture signal end of convert include a photoelectric conversion module, one second fpga chip, one second
Thermostatic control module and a DP1.3 interface protection module.Wherein, this photoelectric conversion module includes the second optical signal amplification submodule
Block, DWDM optical demultiplexer and opto-electronic conversion submodule；This second fpga chip is provided with image decoding unit, image decompression
Unit and DP1.3 image signal generation unit；This DP1.3 image signal generation unit includes DP1.3 image restoring module, image
Data storage control module, high speed DDR memory module, DP1.3 data generating module, DP1.3 image sets packet encoder module,
DP1.3 transfer clock generation module, DP1.3 change over clock monitoring module, DP1.3 image transmission module and the transmission of DP1.3 signal
Parameter/impedance adjusting module.
In above-described embodiment, configuration signal transmission cable is for changing for this source images signal sending end and this picture signal
End transmits the configuration signal that host computer issues, and in real time by transfer clock state and the work of this first PLD
Power supply status, the state of temperature of this electrooptic conversion module, the change over clock state of this second PLD and work electricity
The state of temperature of source state and this electrooptic conversion module sends host computer to.Wherein, this configuration signal includes LVDS number of links
According to arrangement information, LVDS host-host protocol, DP1.3 conversion configurations signal, LVDS transfer clock control signal, DP1.3 change over clock
Control signal, the working power control signal of the first PLD, the temperature control signals of electrooptic conversion module, second
The working power control signal of PLD, the temperature control signals of photoelectric conversion module.
Below in conjunction with the process step shown in Fig. 5, above-described embodiment is described in further detail:
In above-described embodiment, owing to display module produces the position of LVDS image signal source board on line and tested DP1.3 mould
Between the position of group distant, test to meet the some screen of DP1.3 module, need to use many group LVDS LINK cables will
LVDS image signal source board and DP1.3 module are attached, and it is the most that these connect cable, and cabling is the longest.On the other hand,
Owing to display module produces the running environment complexity of line, various electromagnetic interference are frequent, and picture signal can be caused to believe from LVDS image
There is serious signal disturbing and the problem such as signal delay is asynchronous in number source board during being transferred to DP1.3 module.For keeping away
Exempting from signal to be interfered and the asynchronous problem of transmission delay, the present embodiment will turn as source images signal sending end and picture signal
Change end to be respectively put in 2 shielding boxs.Before apparatus of the present invention come into effect action, need to will be equipped with source images signal sending end
Shielding box close proximity to LVDS image signal source board, will be equipped with the shielding box of picture signal end of convert close proximity to DP1.3
Module, and source images signal sending end and the additional electromagnetic shielding of configuration signal transmission cable of picture signal end of convert will be connected
Layer, thus reduce the various interference factors from input, output connection end further and the transmission of view data is impacted.
In above-described embodiment, owing to DP1.3 ultimate resolution is 5120 × 2880, resolution height can cause image data amount
Very big, for the output LVDS picture signal of LVDS image signal source board energy normal reliable, simultaneously in order to reduce transmission synchronization
Problem and the problem of external interference, need to reduce the transfer rate often organizing LVDS LINK cable, and the present embodiment is arranged by following two
Execute the transfer rate reducing LVDS LINK cable: 1) use many LINK mode to transmit LVDS picture signal, as four LINK, eight
LINK mode transmits LVDS picture signal, view data will be assigned on multi-group data LINK transmission, and often organize on LINK
There are 5 LVDS holding wires to transmit each bit of view data, as shown in Figure 1；2) horizontal blanking of this LVDS picture signal is reduced
District, the time span in field blanking district, i.e. reduce row, the data of invalid viewing area, field, as assumed under normal display, and every horizontal blanking
The data volume of the occupied 100bit in district, in the present embodiment, blanking zone is reduced to 10bit by configuration LVDS image signal source board
Data volume.
In above-described embodiment, image input protection module receives many LINK LVDS that LVDS image signal source board sends
Picture signal and LVDS transfer clock signal, LVDS image input protection module eliminates and is attached to this many LINK LVDS picture signal
With the electromagnetic interference on LVDS transfer clock signal and surge clutter, and by shielding box, this electromagnetic interference and surge clutter are led
Enter to the earth, then this many LINK LVDS picture signal is sent to LVDS LINK image data extraction module, LVDS is passed
Defeated clock signal is sent to LVDS image clock and recovers module.
In above-described embodiment, LVDS transfer clock signal recovers in module through PLL phaselocked loop debounce at LVDS image clock
Carry out 7 process of frequency multiplication further according to LVDS host-host protocol after Dong and generate LVDS image clock signal, and by after PLL phaselocked loop Key dithering
LVDS transfer clock signal carry out voltage stabilizing process generate pixel clock signal.LVDS image clock recovers module according to this LVDS
Image clock signal carries out synchronized sampling to many LINK LVDS picture signal of input and changes into local synchronization circuit signal, and adopts
Sample extracts the bit value of each LINK epigraph pixel and sends into two field picture reduction and segmentation mould in the bus data mode of local synchronization
Block.The reduction of this two field picture and the segmentation module bit number by these image pixels of input under the control of this pixel clock signal
According to being reduced into the image pixel signal of 30bit bit wide, and should according to LVDS link data arrangement information and LVDS host-host protocol
The image pixel signal of 30bit bit wide reverts to two field picture, and meanwhile, this two field picture is divided into by two field picture reduction with segmentation module
The frame image data of 900 data areas of 30 row 30 row.
In above-described embodiment, view data caching and comparison module are respectively by 900 data areas of adjacent two two field pictures
Frame image data cache, by 900 of the frame image data of 900 data areas of a two field picture and previous frame image
The frame image data of data area compares respectively, obtains this two field picture and this discrepant data area of previous frame image
Frame image data, and the frame image data of this discrepant data area sent into parallel lossless compression modules carry out lossless pressure
Contracting operation generates compressed file.Such as, when being stored in the frame image data of 900 data areas of the 1st two field picture, owing to not having
Previous frame image, enters so the frame image data of 900 data areas of the 1st two field picture all sends into parallel lossless compression modules
Row lossless compression operation generates compressed file；When being stored in the frame image data of 900 data areas of the 5th two field picture, by the 5th
The frame image data of the frame image data of 900 data areas of two field picture and 900 data areas of the 4th frame respectively than
Relatively, obtain the 5th two field picture and the 4th discrepant data area of two field picture frame image data be 15, then by this discrepant 15
The frame image data of individual data area is sent into parallel lossless compression modules and is carried out lossless compression operation generation compressed file.
In above-described embodiment, parallel lossless compression modules is by the frame image data of these discrepant 15 data areas also
That goes carries out 15 compression data files of generation after Lossless Image Compression Algorithm operation process, is then closed by these 15 compression data files
The secondary lossless compress together carrying out entirety generates 1 second-compressed file, i.e. to the phase in these 15 compression data files
With part recompression, and keep the respective different piece data of these discrepant 15 data areas, lossless through twice
Compression is so that image compression ratio reaches maximum, and data volume minimizes.
In above-described embodiment, it is re-fed into compressing data set bag module after this second-compressed file is carried out caching process and carries out
Group package operation delta frame view data bag, plus packet header before compression data, its middle wrapping head content includes: package beginning identification code
(representing that these bag data are the data of what character, such as a represents that the 1st frame is complete for (to represent the beginning of each packet), Packet type
The compression data of whole image；B represents some image-region discrepant compression data in subsequent frame；C represents image in subsequent frame
Regional diverse compression data；D represents that in subsequent frame, present frame is identical with previous frame image), bag sequence number (when
Before be which bag), image-region numbering (representing which discrepant image-region is compressed into bag data) in bag data,
Bag data length, packet header check word, each wrap in compression data after also have data check word and end-of-packet identification code, when completing
After group package operation, frame image data packet transform is become bit wide to be 128bit by compression data set bag module.If it should be noted that
View data caching and comparison module in time comparing discovery present frame and be identical with previous frame, then notify the parallel nothing of view data
Damaging compression module not to be compressed operating, compression data set bag module only will produce packet header and not contain compression data (packet header type
Insert d).
In above-described embodiment, view data transmission coding module receives this frame image data bag and by this frame image data bag
Being divided into 16 groups of sub-frame images packets, wherein in this frame image data bag, every 8 bit of 15 data area datas compile is one
Group sub-frame images packet, as in this frame image data bag bit7～bit0 of 15 data area datas be the 1st packet,
Bit15～bit8 is the 2nd packet ..., bit127～bit120 is the 16th packet；Then, view data transmission coding module
These 16 groups of sub-frame images packets are carried out error correction coding operations simultaneously, generates and these 16 groups of sub-frame images packet one_to_one corresponding
16 groups of error correction sub-frame images packets.As in figure 2 it is shown, in the present embodiment, in these 16 groups of error correction sub-frame images packets 15
The bit wide of data area data is all 16bit, the error correction of 15 data area datas in each group of error correction sub-frame images packet
The bit wide of coded portion and frame image data packet portion is all 8bit, and wherein, low 8bit is frame image data packet portion, high 8bit
For Error Correction of Coding part.
In above-described embodiment, view data transmission coding module is additionally operable to carry out these 16 groups of error correction sub-frame images packets
Interweave operation: is provided with 8 tunnels in this view data transmission coding module for being interleaved the data storage matrices of operation, image
Data transmission coding module is by the frame image data packet portion of 15 data area datas in the 1st group of error correction sub-frame images packet
Bit0, bit1 ..., bit7 be written to data storage matrices 0, data storage matrices 1 ..., number the most one to one
According to the 0th row in storage matrix 7, form interleaving data D0；By 15 data number of regions in the 2nd group of error correction sub-frame images packet
According to the bit0 of frame image data packet portion, bit1 ..., bit7 be written to data storage matrices 0, number the most one to one
According to the 1st row in storage matrix 1 ..., data storage matrices 7, form interleaving data D1；……；By the 16th group of error correction subframe
The bit0 of frame image data packet portion of 15 data area datas, bit1 ..., bit7 one a pair respectively in view data bag
The 15th row being written in data storage matrices 0, data storage matrices 1 ..., data storage matrices 7 answered, forms intertexture number
According to D15；By the bit0 of the Error Correction of Coding part of 15 data area datas in the 1st group of error correction sub-frame images packet,
Bit1 ..., bit7 are written to data storage matrices 0, data storage matrices 1 ..., data storage square the most one to one
The 16th row in battle array 7, forms interleaving data D16；By the entangling of 15 data area datas in the 2nd group of error correction sub-frame images packet
The bit0 of miscoding part, bit1 ..., bit7 are written to data storage matrices 0, data storage matrices the most one to one
1 ..., the 17th row in data storage matrices 7, form interleaving data D17；……；By the 16th group of error correction sub-frame images data
In bag, the bit0 of Error Correction of Coding part of 15 data area datas, bit1 ..., bit7 are written to number the most one to one
According to the 31st row in storage matrix 0, data storage matrices 1 ..., data storage matrices 7, form interleaving data D31.Such as Fig. 3
Shown in, after the data of 16 groups of error correction sub-frame images packets write data storage matrices the most in a manner described, respectively by data
The row of frame image data packet portion and Error Correction of Coding portion in storage matrix 0, data storage matrices 1 ..., data storage matrices 7
The row divided loopy moving from top to bottom, two parts data of such as data storage matrices 1 move 2 row the most from top to bottom, number
Moving 4 row the most from top to bottom according to two parts data of storage matrix 2, by that analogy, next data storage matrices all ratios are upper
One data storage matrices many movements two row, during to data storage matrices 7, then two parts data loopy moving the most from top to bottom
14 row, when these operations have been completed, the vertical each row of data of output the most line by line that 8 data storage matrices synchronize interweaves as 8 tunnels
Frame image data bag exports, whenever data storage matrices output data line, then view data transmission coding module just will under
Bit level write filling corresponding in one group of error correction sub-frame images packet is come in.
In above-described embodiment, view data transmission coding module carries out scrambler to 8 road interlacing frames view data bags the most respectively
Operation, generates the 8 tunnel scrambler sequence packets having different scrambling codes sequence, and 0 and 1 in this 8 tunnel scrambler sequence packet can be all
Even distribution, can effectively suppress EMI noise, owing to the scrambler sequence of this 8 tunnel scrambler sequence packet is different, can effectively avoid
Each channel interferes, and the probability of error of transmission occur simultaneously in reduction by 8 tunnel scrambler sequence packets.
In above-described embodiment, when pixel clock signal is sent to high precision image transmission by LVDS image clock recovery module
In clock generation module, high precision image transfer clock generation module is by turning this pixel clock signal after PLL frequency multiplication, Key dithering
Change high precisely transfer clock signal into；Image transmitting synchronizes stringization module by this height precisely transfer clock signal respectively to 8 tunnels
Scrambler sequence packet carries out stringization and processes.As shown in Figure 4, image transmitting synchronizes stringization module and is often sending transmission scrambled data
Transmission synchronizing sequence, transmission homing sequence is then resend after a period of time.
In above-described embodiment, the high precisely transmission to high precision image transfer clock generation module of the transfer clock monitoring module
Clock signal and operating current thereof, voltage monitor in real time；When transfer clock monitoring module monitors high precisely transfer clock
The signal frequency of occurrences, phase offset, or when shaking bigger than normal, then in time high precision image transfer clock generation module is carried out parameter
Reverse vernier control so that it is clock signal keep high-precision quasi-stationary state；Meanwhile, height is monitored when transfer clock monitoring module
(such as electric current, Voltage Drop, fluctuation, bigger than normal, less than normal) when the electric current of precision Image transfer clock generation module, voltage occur abnormal
The most reverse current/voltage supply strengthening or reducing high precision image transfer clock generation module.
In above-described embodiment, electro-optic conversion submodule receives the view data after 8 road stringizations, and utilization is integrated in electric light and turns
Change 8 the SFP photonic module (Small Form-factor Pluggable SFP optical module) in submodule respectively will
View data after this 8 road stringization is converted into optical signal.Then 8 road optical signals send into DWDM optical multiplexer (Dense
Wavelength Division Multiplexing) in carry out light multiplexing, a road fiber-optic transfer will be combined in by 8 road optical signals,
Every road optical signal uses the optical signal transmission of different wave length, and the signal after light multiplexing is entered by the first optical signal amplification submodule afterwards
Row light amplification processes, and the optical signal after then amplifying sends into one end of a single-mode fiber.
In above-described embodiment, the other end of second optical signal amplification this single-mode fiber of submodule receives this optical signal, and right
This optical signal carries out light amplification process again, and the optical signal after then DWDM optical demultiplexer will be amplified demultiplexes into 8 road light letters
Number, opto-electronic conversion submodule receives this 8 road optical signal, and utilizes 8 the SFP photonic module being integrated in opto-electronic conversion submodule
This 8 road optical signal is converted into 8 road serial electric signals.
In above-described embodiment, this 8 road serial electric signal is unstringed, removes transmission homing sequence pair by image decoding unit
Neat data, go to disturb and deinterleave so that this 8 road serial electric signal becomes frame image data bag, and image decompression unit removes this image
Frame image data bag packet header, decompression thus restore the frame image data of the data area of two field picture.
In above-described embodiment, DP1.3 picture signal conversion configurations signal includes DP1.3 time sequence parameter, and this DP1.3 image is also
Grand master pattern tuber reads this frame image data according to DP1.3 time sequence parameter and obtains DP1.3 image sequential and DP1.3 view data, should
DP1.3 image sequential and DP1.3 view data are cached in high speed DDR memory module by view data storage control module,
Described DP image sequential and DP view data are assigned to multiple DP LANE according to DP1.3 agreement and believe by DP1.3 data generating module
On road, it is carried out packaging by DP1.3 by DP1.3 image sets packet encoder module again, Scrambling Operation, and is respectively fed to DP1.3
Image transmission module is converted into the lane signal of DP1.3；DP1.3 transfer clock generation module is according to this DP1.3 time sequence parameter
Produce high accuracy 100Mhz accurate clock, and to produce the DP1.3 transmission of 8.1GHz more accurately after frequency multiplication, de-jitter
Clock；Then this multichannel DP1.3 LANE signal is carried out stringization according to DP1.3 transfer clock and processes by DP1.3 image transmission module
Obtain and this multichannel DP1.3LANE signal many LANE DP1.3 picture signal one to one (serial D P1.3 8.1Gbps letter
Number), DP1.3 signal transmission parameters/impedance adjusting module is then to the impedance of many LANE DP1.3 picture signal, preemphasis, driving
Electric current is adjusted；Many LANE DP1.3 picture signal of output is protected by DP1.3 interface protection module, it is to avoid outside dry
Disturb on, sparking produces impact to each device internal.
In above-described embodiment, DP1.3 change over clock monitoring module to the reference clock of DP1.3 transfer clock generation module and
Its operating current, voltage monitor in real time and calibrate.
In above-described embodiment, this first thermostatic control module is responsible for monitoring the temperature of the first fpga chip and electrooptic conversion module
Degree, and the temperature information of the first fpga chip and electrooptic conversion module is uploaded in real time by this configuration signal transmission cable
Position machine, once the temperature of the first fpga chip or electrooptic conversion module is more than 26 DEG C, host computer can be transmitted by this configuration signal
Cable sends cooling order to source images signal sending end, then source images signal sending end uses the measure coolings such as cooling, fan,
Guarantee that each device is not affected performance by temperature is too high.
In above-described embodiment, this second thermostatic control module is responsible for monitoring the temperature of the second fpga chip and photoelectric conversion module
Degree, and the temperature information of the second fpga chip and photoelectric conversion module is uploaded in real time by this configuration signal transmission cable
Position machine, once the temperature of the second fpga chip or photoelectric conversion module is more than 26 DEG C, host computer can be transmitted by this configuration signal
Cable sends cooling order then to picture signal end of convert, then picture signal end of convert uses the measure coolings such as cooling, fan, really
Protect each device and do not affected performance by temperature is too high.
As it will be easily appreciated by one skilled in the art that the content that this specification is not described in detail belongs to this area professional technique
Prior art known to personnel, these are only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in protection scope of the present invention
Within.
Claims (10)
1. for transmission and a device for converted image signal, for providing the picture signal needed for test for display module,
It is characterized in that, this device includes:
Source images signal sending end, is used for receiving source images signal and this source images signal being converted into optical signal；
Picture signal end of convert, for receiving this optical signal and this optical signal being converted into the image letter that display module is capable of identify that
Number form；
Configuration signal transmission link, issues for transmitting host computer for this source images signal sending end and this picture signal end of convert
Configuration signal.
Device for transmission with converted image signal the most according to claim 1, it is characterised in that this source images signal
Transmitting terminal includes:
Image input protection module, is used for receiving this source images signal and elimination is attached to the electromagnetic interference on this source images signal
And/or surge clutter；
First PLD, for the source images signal this image input protection module exported according to this configuration signal
Revert to frame image data bag；
Electrooptic conversion module, for being converted into optical signal by this frame image data bag.
Device for transmission with converted image signal the most according to claim 2, it is characterised in that this configuration signal
Include temperature control signals；This source images signal sending end also includes:
First thermostatic control module, issues for transmitting host computer by this configuration signal transmission link to this electrooptic conversion module
This temperature control signals.
Device for transmission with converted image signal the most according to claim 2, it is characterised in that this configuration signal
Include source images signal link data arrangement information and source images signal transfer protocol；This first PLD is arranged
Have:
Two field picture reduction and cutting unit, for passing according to this source images signal link data arrangement information and this source images signal
The source images signal of this image input protection module output is reverted to two field picture by transmission protocol, and is divided into multiple by this two field picture
The frame image data of data area；
Lossless Image Compression Algorithm unit, generates compressed file for this frame image data carries out lossless compression operation, and to this pressure
Contracting file packages to operate and generates this frame image data bag.
Device for transmission with converted image signal the most according to claim 4, it is characterised in that this configuration signal is also
Including transfer clock control signal and/or working power control signal；This first PLD is additionally provided with:
Transfer clock monitoring module, for transmitting upper by this configuration signal transmission link to this first PLD
This transfer clock control signal that machine issues and/or this working power control signal.
Device for transmission with converted image signal the most according to claim 1, it is characterised in that this picture signal turns
Change end to include:
Photoelectric conversion module, is used for receiving this optical signal and this optical signal being converted into frame image data bag；
Second PLD, carries out de-packaging operation and decompression operation by this frame for successively to this frame image data bag
View data bag is reduced into frame image data, and according to this configuration signal, this frame image data is converted into display module and can know
Other image signal format.
Device for transmission with converted image signal the most according to claim 6, it is characterised in that this configuration signal
Include temperature control signals；This picture signal end of convert also includes:
Second thermostatic control module, issues for transmitting host computer by this configuration signal transmission link to this photoelectric conversion module
This temperature control signals.
Device for transmission with converted image signal the most according to claim 6, it is characterised in that this configuration signal
Include conversion configurations signal；This second PLD is provided with
Image decompression unit is reduced into compressed file for this frame image data bag is carried out de-packaging operation, and to this compressed file
Carry out decompression operation and be reduced into this frame image data；
This image signal conversion cell can for this frame image data being converted into display module according to this conversion configurations signal
The image signal format identified.
Device for transmission with converted image signal the most according to claim 8, it is characterised in that this configuration signal is also
Including change over clock control signal and/or working power control signal；This second PLD is additionally provided with:
Change over clock monitoring module, for transmitting upper by this configuration signal transmission link to this second PLD
This change over clock control signal that machine issues and/or this working power control signal.
10. according to the device for transmission with converted image signal described in any one of claim 1-9, it is characterised in that should
Device also includes the first electro-magnetic screen layer, the second electro-magnetic screen layer and the 3rd electro-magnetic screen layer, and this source images signal sending end is put
In this first electro-magnetic screen layer, this picture signal end of convert is placed in this second electro-magnetic screen layer, this configuration signal chain
Road is placed in the 3rd electro-magnetic screen layer.
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