CN104486616B - Device for quality detection of TTL (transistor-transistor logic) video signals - Google Patents
Device for quality detection of TTL (transistor-transistor logic) video signals Download PDFInfo
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Abstract
The invention belongs to the fields of display and testing for liquid crystal modules, and particularly relates to a device for quality detection of TTL (transistor-transistor logic) video signals. The device includes a TTL transmission module, an RGB (red, green, and blue) data detection module and a detection control module, wherein the TTL transmission module is used for receiving the TTL video signals, terminating the received TTL video signals, and detecting the electrical characteristics of the terminated TTL video signals; the RGB data detection module is used for detecting image data of the TTL video signals; the detection control module is used for sending parameters and control signals. The device achieves the detection of the TTL video signals generated by a video source, has the advantages of high simplicity in operation, high economization and practicality, high integration level, as well as high work reliability and anti-jamming capability, and can improve the detection reliability and efficiency for a TTL liquid crystal module and reduce the equipment cost and production cost of the TTL liquid crystal module.
Description
Technical field
The invention belongs to the display field and field tests of liquid crystal module, and in particular to one kind detection TTL vision signal matter
The device of amount.
Background technology
The liquid of liquid crystal display module (Liquid Crystal Display Module, hereinafter referred to as module) and its correlation
The use of crystal display device (hereinafter referred to as equipment) is very universal, as well as TTL (Low-Voltage
Differential Signaling, Low Voltage Differential Signal) signal stabilization is reliable, high, power consumption is relatively low to pass speed, many modules and
Equipment is all by adopting the signal as the display interface for receiving video image.
Produced, debugged in module and its equipment, videograph process when need to turn by video signal source or video
Fishplate bar (abbreviation video source below) produces the source that TTL vision signals provide module displays signal to it, thereby, it is ensured that video
Vision signal correctness and reliability that source produces are the premises for ensureing module displays.
At present, on market for video source domain there is no unified standard guarantee export TTL vision signals correctness, can
By property, the detection to the picture signal of video source output is recognized one by one to shown image pixel by human eye, cut manually
Figure persistently judges.This detection mode operating personnel not only easily judge by accident, when there is display problem it is difficult to localized reason is located；
And by eye recognition easily by the subjective impact of people, operating personnel are for a long time against image, and eyes are easily tired, and these are all
Testing result can be impacted；Test platform need to be again built when module is changed, so as to cause inefficiency, is operated numerous
It is trivial.
Therefore a kind of technical scheme is needed reliable, errorless, efficient to examine to the TTL picture signals that video source is produced
Survey, without the need for artificial judgement.
The content of the invention
The purpose of the present invention is exactly to solve the deficiency that above-mentioned background technology is present, there is provided one kind detection TTL video letters
The device of number quality, its have reliability it is high, without erroneous judgement, simple to operate, detection efficiency is high, low cost the characteristics of.
The technical solution used in the present invention is：A kind of device of detection TTL video signal qualities, including：
For sampling to the electrical characteristic of TTL vision signals, the electric parameter for obtaining TTL vision signals is electric with TTL
Gas parameter benchmark carries out the TTL transport modules of contrasting detection；
For contrasting detection will to be carried out with raw image data successively per frame RGB data, electric testing result signal is exported
With the RGB data detection module of view data testing result signal；
For sending control parameter and control signal, receiving electric testing result signal and view data testing result signal
Detection control module.
The control end of the detection control module connects respectively the control of the TTL transport modules and RGB data detection module
End processed, the first output end of the TTL transport modules connects the first input end of the RGB data detection module, the second output
Second input of the end connection RGB data detection module, the output end connecting detection control of the RGB data detection module
The signal receiving end of module.
Further, the TTL transport modules include：
TTL for the operation that is terminated to TTL vision signals transmits matching module；
TTL signal for being sampled to the electrical characteristic of TTL vision signals is electrically sampled and quantization modules；
TTL for the electrical value of the TTL vision signals of sampling and TTL electric parameters benchmark to be carried out contrasting detection is electric
Gas detection module；
The output end of the TTL transmission matching module connects the TTL signal electrically sampling and quantization modules input, number
According to the data output end of the receiving terminal connection detection control module, the TTL signal electrically sampling and the output of quantization modules
The input of the electric detection modules of end connection TTL, the output end of the electric detection modules of TTL connects the RGB data detection module
The second input, control end connection it is described detection control module control end.
Further, the TTL transport modules also include whole for carrying out to the TTL vision signals after the operation that is terminated
The TTL signal Shaping Module of shape enhanced processing, its input connects the output end of the TTL transmission matching module, output end and makees
The first output end for TTL transport modules connects the first input end of the RGB data detection module.
Further, the RGB data detection module includes：
For caching every frame RGB data successively, while being sequentially output the rgb signal caching of the every frame RGB data for having cached
Control module；
For caching every width raw image data successively, while being sequentially output the original of the every width raw image data for having cached
Beginning image buffer storage control module；
For a line for reading RGB data and a line raw image data to be synchronized into delay operation so as to synchronous
The Data Detection fifo module of output；
For the RGB data detection module that every frame RGB data is carried out successively into contrasting detection with raw image data；
For receiving the signal detecting result output module of RGB data testing result and the electric testing results of TTL；
The input of the rgb signal buffer control module connects the first output end, the output end of the TTL transport modules
Connect the input of the Data Detection fifo module and the control signal system end of RGB data detection module respectively with control end, it is former
The input of beginning image buffer storage control module connects output end, output end and the control end of the detection control module and connects respectively
The input of the Data Detection fifo module and the control signal end of RGB data detection module, the Data Detection FIFO mould
The output end of block connects the input of the RGB data detection module, and the output end connection of the RGB data detection module is described
The control end of the input of signal detecting result output module, the control end connection detection control module, the signal detection
As a result the output end of output module connects the signal receiving end of the detection control module.
Further, the RGB data detection module also includes：
The mould of RGB frame data buffer storage first of the every frame RGB data for alternately storing rgb video signal data buffer storage successively
Block and the module of RGB frame data buffer storage second, per for alternately storing original image buffer control module caching successively is original
The initial data image of view data caches the first module and initial data image caches the second module；
The data receiver of the module of RGB frame data buffer storage first and the module of RGB frame data buffer storage second connects respectively
The data processing end of rgb signal buffer control module；
The initial data image caches the first module and initial data image caches the data receiver point of the second module
Not Lian Jie original image buffer control module data processing end.
Further, the detection control module includes：
For receiving Ethernet, RS232, RS485 interface module of control parameter；
For receiving USB, the SD card interface module of raw image data；
For sending control parameter and control signal, receiving electric testing result signal and view data testing result signal
Upper-layer configured module,
The control end of the upper-layer configured module is used as the control end for detecting control module, the letter of the upper-layer configured module
Number receiving terminal connects the output end of the RGB data detection module, the upper-layer configured module input connect respectively it is described with
Too net, RS232, RS485 interface module and USB, the output end of SD card interface module.
The invention has the beneficial effects as follows：
It is of the invention the TTL vision signals of single LINK of video source generation, double LINK, four LINK to be detected, this
It is bright by arrange, can well adapt in different TTL transmission characteristics, the color range of vision signal, transmission means, coded system etc.
Different qualities.
The electrical characteristic of the TTL vision signals that the present invention can be produced to video source is detected, electrically joined by being input into TTL
Number standard, obtains testing result and output display through comparison in the present invention.
The view data detection of the TTL vision signals that the present invention can be produced to video source, by caching in advance per two field picture
Data are simultaneously contrasted with raw video image, so as to judge whether each pixel exports correctly, can be detected per two field picture.
The present invention can detect that not only integrated level is high, reliable operation, strong antijamming capability to highest TTL video resolution,
And it is simple to operate, economical and practical, the detection reliability and efficiency of TTL liquid crystal modules can not only be lifted, reduce its equipment cost
And production cost, also will further improve the popularization of related display device.
The present invention can be by with FPGA (FPGA) chip, DDR (Double Date Rate Double Datas
Speed) storage chip, A/D (analog/digital) conversion chips to be realizing the repertoire；Above-mentioned device is the common core in market
Piece, they not only working stability, realize easy, and low price, it is to avoid set because caused using various special chips
The problems such as meter is complicated, stability is poor, design cost is high.
Description of the drawings
Fig. 1 is the structured flowchart of the present invention.
Fig. 2 is the circuit block diagram of TTL transport modules in Fig. 1.
Fig. 3 is the circuit block diagram of RGB data detection module in Fig. 1.
Fig. 4 is the circuit block diagram that control module is detected in Fig. 1.
In figure：1-TTL transport modules, 11-TTL transmission matching modules, 12-TTL signal shaping modules；13-TTL signals electricity
Gas is sampled and quantization modules；The electric detection modules of 14-TTL；
3-RGB data detection modules, 31-RGB signal buffer control modules, 32-RGB frame data cache the first module, 33-
The module of RGB frame data buffer storage second, 34- original image buffer control modules, 35- initial data image caches the first module, 36-
Initial data image caches the second module, 37-RGB data detection modules, 38- signal detecting result output modules, the inspection of 39- data
Survey fifo module；
4- detects control module, 41- Ethernets, RS232, RS485 interface module, 42-USB, SD card interface module, 43-
Upper-layer configured module.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment, is easy to be well understood to this
It is bright, but they do not constitute restriction to the present invention.
As Figure 1-4, the device of detection TTL video signal qualities of the invention includes：TTL transport modules 1, RGB numbers
According to detection module 3 and detection control module 4.
TTL transport modules 1, are terminated operation for receiving TTL vision signals to it, and the TTL after terminated operation is regarded
The electrical characteristic of frequency signal is sampled, and the electric parameter and TTL electric parameters benchmark for obtaining TTL vision signals carries out contrast inspection
Survey, export electric testing result signal.
TTL transport modules include 1：
TTL transmits matching module 11, for according to the TTL transmission match parameters for receiving to the TTL vision signals that receive
Be terminated operation, to make great efforts for the more chaotic signal that video source is produced to revert to tested TTL vision signals, then by end
Connect the TTL vision signals after operation is processed and be sent to TTL signal electrically sampling and quantization modules, the terminated operation includes TTL
Signal impedance matching, TTL signal equilibrium allocation, compensate because of signal distortion, decay caused by long range propagation institute, it is ensured that TTL believes
Number quality.
TTL signal Shaping Module 12, for carrying out shaping enhanced processing to the TTL vision signals after the operation that is terminated,
Obtain optimal signal quality, it is to avoid follow-up signal is changed and detected erroneous judgement occurs, is then output to RGB data detection module 3,
TTL vision signals after shaping are rgb video signal, directly can carry out view data detection to it.
TTL signal is electrically sampled and quantization modules 13, for entering to electrical characteristics such as the voltage of TTL vision signals, electric currents
Row sampling, and quantified the signal sampled (analog quantity) by AD conversion chip, that is, it is converted into different size of numeral
Bit values.
The electric detection modules 14 of TTL, for receive the detection TTL that sends of control module electrically detect control signal and
After TTL electric parameter benchmark, the electrical value of the TTL signal of sampling is contrasted with TTL electric parameter benchmark, if TTL is adopted
Sample numerical value then represents that TTL vision signal electrical qualities are up to standard between the maxima and minima of TTL electric parameter benchmark, otherwise
For failure.Then signal detecting result output module 38 is given by testing result (whether up to standard tabulating which parameter),
Give module 43 all the way afterwards and return to PC via Ethernet, RS232, RS485 interface module 41 and show result, Ling Yilu
Produce and show that signal feeding carries display screen 5 and shows.
Input, data that the output end connection TTL signal of TTL transmission matching modules 11 is electrically sampled with quantization modules 13
The data output end of receiving terminal connecting detection control module 4, electrically sampling is connected TTL signal with the output end of quantization modules 13
The input of the electric detection modules 14 of TTL, the output end of the electric detection modules 14 of TTL is exported as the second of TTL transport modules 1
End connects the second input, the control end of control end connecting detection control module 4 of RGB data detection module 3, and TTL signal is whole
The input connection TTL transmission output ends of matching module 11 of shape module 12, output end are first defeated as TTL transport modules 1
Go out the first input end that end connects RGB data detection module 3.
RGB data detection module 3, the view data detection control signal for being sent according to upper-layer configured module is delayed successively
Every frame RGB data of rgb video signal (TTL vision signals) is deposited, control signal caching original image is read according to original image
Data, contrasting detection will be carried out with raw image data successively per frame RGB data, export electric testing result signal and picture number
According to testing result signal；
RGB data detection module 3 includes：
Rgb signal buffer control module 31, for caching every frame RGB data successively according to operating control signal, while according to
It is secondary to export the every frame RGB data for having cached；
The first module of RGB frame data buffer storage 32 and the second module of RGB frame data buffer storage 33, for alternately storing RGB successively
Every frame RGB data of the caching of signal buffer control module 31；
Original image buffer control module 34, for reading control signal according to original image every width original graph is cached successively
As data, while being sequentially output the every width raw image data for having cached according to the operating control signal of RGB data detection module；
Initial data image caches the first module 35 and initial data image caches the second module 36, for alternately depositing successively
Every width raw image data of the caching of storage original image buffer control module 34.
Data Detection fifo module 39, a line RGB data and a line raw image data for reading is carried out together
Step delay operation so as to synchronism output；
RGB data detection module 37, for being controlled to rgb signal caching according to the view data detection control signal for receiving
Molding block and original image buffer control module send operating control signal, while will be per frame RGB according to original image resolution
Data carry out successively contrasting detection with raw image data, and the object of detection includes each pixel size and pixel of RGB data
Position.
Signal detecting result output module 38, for receive RGB data detection module output RGB data testing result and
The electric testing results of TTL of TTL electric detection modules output, and send detection consequential signal and give detection control module.
The input of rgb signal buffer control module 31 connects output end, output end and the control of TTL signal Shaping Module 12
End processed connects respectively the input of the Data Detection fifo module 39 and the control signal end of RGB data detection module 37, former
The data output end of the input connecting detection control module 4 of beginning image buffer storage control module 34, output end and control end difference
Connect the input of the Data Detection fifo module 39 and the control signal end of RGB data detection module 37, Data Detection
The input of the output end connection RGB data detection module 37 of fifo module 39, the output end of the RGB data detection module 37
Connect input, the control end of the first control end connecting detection control module 4 of the signal detecting result output module 38, believe
The signal receiving end of the output end connecting detection control module 4 of number testing result output module 38.The mould of RGB frame data buffer storage first
The data receiver of block 32 and the second module of RGB frame data buffer storage 33 connects respectively the data of rgb signal buffer control module 31
Process end.Initial data image caches the first module 35 and initial data image caches the data receiver difference of the second module 36
The data processing end of connection original image buffer control module 34.
Detection control module 4, for sending electrically detection control signal and TTL electric parameters benchmark TTL transport modules are given；
Read control signal, raw image data and original image and differentiate for sending view data detection control signal, original image
Rate gives RGB data detection module, and receives electric testing result signal and view data testing result signal.
Detection control module 4 includes：
Ethernet, RS232, RS485 interface module 41, for receiving TTL electric parameters benchmark and TTL transmission matching ginsengs
Number, the present invention arranges TTL transmission match parameters (termination impedance, balanced) in PC upper layer software (applications)s, and TTL electric parameters benchmark is (most
Big voltage, minimum voltage, overshoot, undershoot, electric current etc.), tested image level resolution ratio, vertical resolution (are also original image
Resolution ratio).After detection means starts, Ethernet, RS232, RS485 interface module 41 are input into above-mentioned containing PC control parameters
Ethernet, rs 232 serial interface signal and recover its parameter and send into upper-layer configured module 43.
USB, SD card interface module 42, for TTL electrically detect it is up to standard after, receive raw image data send into upper strata match somebody with somebody
Put module 43；
Upper-layer configured module 43, for sending TTL transmission match parameters, electrically detection control letter when TTL is electrically detected
Number and TTL electric parameters benchmark give TTL transport modules；Electrically detect it is up to standard after, for send view data detection control letter
Number, original image reads control signal, raw image data and original image resolution and gives RGB data detection module.
The control end of upper-layer configured module 43 is as the detection control end of control module 4, data output end as detection control
The data output end of molding block 4, the signal receiving end of the upper-layer configured module 43 connects the RGB data detection module 3
Output end, the input of upper-layer configured module 43 connects respectively the Ethernet, RS232, RS485 interface module 41 and USB, SD card
The output end of interface module 42.
The process of the TTL vision signals produced using present invention detection frequency source is as follows：
Step 1, is detected video source and reads original image and produce the TTL that TTL vision signals are output to the present invention
Transport module 1.
Step 2, arranges control parameter in PC, and PC control parameters are arranged with to be detected video source identical, by ether
Net or RS232, RS485 Serial Port Line send into detection control module 4.
Step 3, after apparatus of the present invention start, Ethernet, RS232, RS485 interface module 41 receive above-mentioned containing PC controls
The Ethernet of parameter, rs 232 serial interface signal simultaneously recover its parameter and send into upper-layer configured module 43.PC control upper-layer configured module 43
It is distributed to other each functional modules.After each functional module completes relative set and initialization, upper-layer configured module 43 is produced
Raw TTL electrically detects that control signal gives TTL electric detection modules 14, and first the TTL signal electrical characteristic to being detected video source is examined
Survey.Carry out view data detection again when electric testing result is in the range of TTL electric parameter benchmark.
Step 4, TTL transport modules 1 are input into and detect to TTL vision signals.TTL transmission matching modules 11 are matched somebody with somebody according to upper strata
Put module 43 output TTL transmission match parameter carry out signal receive impedance matching, receive equilibrium allocation, with make great efforts revert to by
Survey vision signal.Electrically sampling and quantization modules 13 are carried out TTL signal to electrical characteristics such as voltage, the electric currents of TTL vision signals
Sampling, and quantified institute's sampled signal (analog quantity) by AD conversion chip, that is, it is converted into different size of digital bit
Value.The electric detection modules 14 of TTL compare each TTL sample magnitude and TTL electric parameter benchmark, and output TTL is electrically examined
Survey result.
Step 5, after upper-layer configured module 43 obtains TTL electric testing results, voluntarily starts view data if up to standard
Detection control is to RGB data detection module 3 so as to receive the view data automatic detection of rgb video signal；Otherwise wait for PC
Next step instruction is done, the electrical characteristic for being the TTL vision signals for detecting new again is also off whole detection process.Work as TTL
Electrically up to standard, then the TTL vision signals of 12 pairs of inputs of TTL signal Shaping Module carry out shaping amplification, to reach optimum signal matter
Amount, it is to avoid follow-up signal is changed and detected erroneous judgement occurs, exports to RGB data detection module 3.
Step 6, after TTL is electrically up to standard, upper-layer configured module 43 reads original automatically by USB, SD card interface module 42
Beginning image (original image and detected video source are same image) simultaneously produces original image reading control signal to original image
Buffer control module 34 makes it cache the image.The original image is first cached to original number by original image buffer control module 34
According to the first module of image buffer storage 35, initial data image is then cached to when next width original image is detected and caches the second module
36, this two modules do ping-pong operation and using high speed DDR storage chip, so as to can be without the real-time detection different images number for pausing
According to.
Step 7, the RGB figures of the orthopedic TTL vision signals (rgb video signal) of 3 pairs of receptions of RGB data detection module
Detect again as data are first cached, and by testing result export to display screen 5 show with Jing modules 43 be sent on PC show.When
RGB data detection module 37 then sends operation start control signal rgb signal caching when receiving view data detection control signal
Control module 31 receives rgb video signal.(find when rgb signal buffer control module 31 receives a new two field picture
Have VSYNC from high level to low level saltus step), then the frame image data is cached to into the first module of RGB frame data buffer storage 32,
After frame (i.e. present frame, the hereinafter referred to as n-th frame) data are all cached to the first module of RGB frame data buffer storage 32, continue immediately
The (n+1)th frame is cached in the second module of RGB frame data buffer storage 33, while notifying the n-th frame data buffer storage of RGB data detection module 37
Complete to detect it；The n-th frame cached in RGB data detection module 37 is to the first module of RGB frame data buffer storage 32
When data are detected, while the (n+1)th frame RGB data is continued to be cached to RGB frame data by rgb signal buffer control module 31 delaying
Deposit the second module 33；After the completion of the (n+1)th frame RGB data caching, RGB data detection module 37 has completed slow to RGB frame data
Detection data cached in the first module 32 is deposited, it is data cached in being now further continued for the second module of RGB frame data buffer storage 33
Detected.That is rgb signal buffer control module 31 and RGB data detection module 37 alternate caching, detection n-th, n+1 respectively
Frame RGB data, that is, carry out the ping-pong operation between caching/detecting, so can improve without the continuous detection for pausing per frame data
Detection efficiency and reliability.The first module of RGB frame data buffer storage 32, the second module of RGB frame data buffer storage 33, initial data image
Cache the first module 35, initial data image the second module 36 of caching can be realized by DDR storage chips, so as to realize big point
Resolution big data quantity, high read-write operation, high reliability operation.
Step 8, it is first slow by operation original image respectively when RGB data detection module 37 is detected to RGB data
Deposit control module 34, the current raw image data that the reading of rgb signal buffer control module 31 has been cached and n-th frame to be detected
RGB data.Because cache module is realized by phase same rate DDR storage chips, but each DDR device is because of its own production technology
And individual difference, cause its read-write operation speed not identical.Therefore to guarantee reliable detection, read from cache module
The data for taking need to be stored into again in the corresponding FIFO of Data Detection fifo module 39 (First InputFirst Output), number
There are two FIFO to be stored in raw image data and detected RGB data respectively according to detection fifo module 39.RGB data detects mould
Block 37 according to the horizontal resolution (i.e. a line view data number) for being configured by operation original image buffer control module 34,
Rgb signal buffer control module 31 writes a line raw image data and the tested RGB data of a line in respective FIFO, afterwards then
The data for reading in this two FIFO simultaneously are compared, and pixel size result that record compares (it is identical then to represent correct, it is no
Then represent mistake) and contrast location of pixels (which pixel of which row, X, Y-coordinate) and give letter by its result and position
Number testing result output module 38.Due in FIFO again caching once, reading data that can be simultaneously synchronous, therefore in contrast number
According to when can be operated using pipeline system, i.e., continuously read and compare, and constantly writing data into FIFO, it is whole to read
Comparison procedure is write without pause.
Step 9, when initial data image cache the first module 35 last raw image data is written in FIFO and
After the completion of RGB data detection module 37 compares, if the n-th frame of rgb signal buffer control module 31 is also accordingly last number
Complete according to comparing, and middle comparison procedure does not have mistake, then it is assumed that the output of frame TTL images is correct, then proceedes to detection (n+1)th
Frame data.If when rgb signal buffer control module 31 still has data to be detected after last raw image data is completeer, recognizing
For image resolution ratio mistake, and give signal detecting result output module 38 by result and pass to upper strata PC, and stop subsequent figure
The comparison (cannot judge to be detected image resolution ratio, comparison is meaningless) of picture.If when the resolution ratio detection of view data is correct, and
In intermediate image, some pixel errors then continue to detect the (n+1)th frame.
Step 10, signal detecting result output module 38 carries out RGB data testing result and the electric testing results of TTL to turn
The interface data for changing suitable display screen 5 into gives it to show, while be converted into the discernible protocol format of upper layer software (applications) controlling after testing
Molding block 4 is given upper strata PC and is processed.
Step 11, after the completion of current piece image detection, before tested video source changes piece image output, upper strata PC
Switching image command is first produced to upper-layer configured module 43.Upper-layer configured module 43 is by USB, SD card interface module 42 will be next
Width original image passes to original image buffer control module 34 and is cached to (original number in initial data image the second module 36 of caching
According to the caching of the first module of image buffer storage 35 is current original image).Switching graphics control signals (bag is produced after caching is completed
In being contained in view data detection control signal) to RGB data detection module 37, while tested video source begins to send out next width figure
The TTL vision signals of picture.RGB data detection module 37 then still completes present image and delays when switching graphics control signals are received
There is the current n frames and n+1 frame RGB datas in the first module of RGB frame data buffer storage 32, the second module of RGB frame data buffer storage 33
Comparison, rgb signal buffer control module 31 is operated afterwards by the first module of RGB frame data buffer storage 32, RGB frame data buffer storage the
Two modules 33 reset, and view data detection process afterwards is same as described above.The TTL videos of next image are sent out in view of video source
The process of signal has time delay, therefore also controls to be received again after the time delay of the rgb signal buffer control module 31 about transmission time of field
Signal.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (5)
1. a kind of device of detection TTL video signal qualities, it is characterised in that include：
For sampling to the electrical characteristic of TTL vision signals, the electric parameter for obtaining TTL vision signals is electrically joined with TTL
Base standard carries out contrasting detection and exports electric testing result to the TTL transport modules (1) of RGB data detection module；
For contrasting detection will to be carried out with raw image data successively per frame RGB data, the electric testing result letter for receiving is exported
Number and view data testing result signal RGB data detection module (3)；
For the inspection for sending control parameter and control signal, receiving electric testing result signal and view data testing result signal
Survey control module (4)；
The control end of detection control module (4) connects respectively the TTL transport modules (1) and RGB data detection module (3)
Control end, the first input end of first output end connection RGB data detection module (3) of the TTL transport modules (1), the
Two output ends connect the second input of the RGB data detection module (3), the output end of the RGB data detection module (3)
The signal receiving end of connecting detection control module (4)；
The TTL transport modules (1) include：
For TTL transmission matching module (11) of the operation that is terminated to TTL vision signals；
TTL signal for being sampled to the electrical characteristic of TTL vision signals is electrically sampled and quantization modules (13)；
For the TTL that the electrical value of the TTL vision signals of sampling carries out contrasting detection with TTL electric parameters benchmark electrically to be examined
Survey module (14)；
The output end of TTL transmission matching module (11) connects the TTL signal electrically sampling and quantization modules (13) input
End, the data output end of the data receiver connection detection control module (4), the TTL signal is electrically sampled and quantifies mould
The input of the electric detection modules (14) of output end connection TTL of block (13), the output end connection of the electric detection modules of TTL (14)
Second input of the RGB data detection module (3), the control end of the control end connection detection control module (4).
2. the device of a kind of detection TTL video signal qualities according to claim 1, it is characterised in that：The TTL transmission
Module (1) also includes the TTL signal sizing die for carrying out shaping enhanced processing to the TTL vision signals after the operation that is terminated
Block (12), its input connects output end, the output end of TTL transmission matching module (11) as TTL transport modules (1)
First output end connects the first input end of the RGB data detection module (3).
3. the device of a kind of detection TTL video signal qualities according to claim 1, it is characterised in that：The RGB data
Detection module (3) includes：
For caching every frame RGB data successively, while being sequentially output the rgb signal buffer control of the every frame RGB data for having cached
Module (31)；
For caching every width raw image data successively, while being sequentially output the original graph of the every width raw image data for having cached
As buffer control module (34)；
For a line for reading RGB data and a line raw image data to be synchronized into delay operation so as to synchronism output
Data Detection fifo module (39)；
For the RGB data detection module (37) that every frame RGB data is carried out successively into contrasting detection with raw image data；
For receiving the signal detecting result output module (38) of RGB data testing result and the electric testing results of TTL；
The input of the rgb signal buffer control module (31) connects the first output end of the TTL transport modules (1), defeated
Go out end and control end connects respectively the input of the Data Detection fifo module (39) and the control of RGB data detection module (37)
Signal system end, output end, the output of the input connection detection control module (4) of original image buffer control module (34)
End and control end connect respectively the input of the Data Detection fifo module (39) and the control of RGB data detection module (37)
Signal end, the output end of the Data Detection fifo module (39) connects the input of the RGB data detection module (37), institute
The output end for stating RGB data detection module (37) connects input, the control end of the signal detecting result output module (38)
The control end of the connection detection control module (4), the output end connection of the signal detecting result output module (38) is described
The signal receiving end of detection control module (4).
4. the device of a kind of detection TTL video signal qualities according to claim 3, it is characterised in that：The RGB data
Detection module (3) also includes：
The module of RGB frame data buffer storage first of the every frame RGB data for alternately storing rgb video signal data buffer storage successively
(32) and the module of RGB frame data buffer storage second (33), for alternately storage original image buffer control module (34) caching successively
Every width raw image data initial data image cache the first module (35) and initial data image caching the second module
(36)；
The data receiver difference of the module of RGB frame data buffer storage first (32) and the module of RGB frame data buffer storage second (33)
The data processing end of connection rgb signal buffer control module (31)；
The initial data image caches the first module (35) and initial data image caches the data receiver of the second module (36)
End connects respectively the data processing end of original image buffer control module (34).
5. the device of a kind of detection TTL video signal qualities according to claim 1, it is characterised in that：The detection control
Molding block (4) includes：
For receiving Ethernet, RS232, RS485 interface module (41) of control parameter；
For receiving USB, the SD card interface module (42) of raw image data；
For sending control parameter and control signal, receive electric testing result signal and view data testing result signal
Layer configuration module (43),
The control end of the upper-layer configured module (43) is used as the control end for detecting control module (4), the upper-layer configured module
(43) signal receiving end connects the output end of the RGB data detection module (3), upper-layer configured module (43) input
Connect the Ethernet, RS232, RS485 interface module (41) and USB, the output end of SD card interface module (42) respectively.
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