CN106791813B - A kind of real-time window monitoring method and device that high-speed data receives - Google Patents
A kind of real-time window monitoring method and device that high-speed data receives Download PDFInfo
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- CN106791813B CN106791813B CN201611179036.6A CN201611179036A CN106791813B CN 106791813 B CN106791813 B CN 106791813B CN 201611179036 A CN201611179036 A CN 201611179036A CN 106791813 B CN106791813 B CN 106791813B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00007—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to particular apparatus or devices
- H04N1/0001—Transmission systems or arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00037—Detecting, i.e. determining the occurrence of a predetermined state
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00042—Monitoring, i.e. observation
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Abstract
The invention discloses the real-time windows that a kind of high-speed data receives to monitor method, including：Generate data channel corresponding with the high-speed data received and monitoring channel, and when detecting that data channel receives high-speed data, pass through the adjustment to monitoring communication channel delay, compare data channel and monitors whether the data of channel acquisition match, if mismatching, the delay in two channels is adjusted while then corresponding, the sampled point of data channel is set to be always positioned in safe sampling window more smaller than valid window, after solving initial channel training, the problem of sampled point deviates again caused by temperature change and voltage drift in image data transmission process, it ensure that the high reliability that image data receives for a long time, and during entire monitoring and delay adjustment, there is no any influence to normal data transmission；The invention also discloses the real-time window monitoring arrangements that a kind of high-speed data receives, and equally can realize above-mentioned technique effect.
Description
Technical field
The present invention relates to Highspeed Data Transmission Technology fields, are received more specifically to a kind of high-speed data real-time
Window monitors method and device.
Background technology
It is currently widely used in the fields such as network, high-speed AD and high frame frequency cmos detector that source, which synchronizes LVDS interface,
A kind of Highspeed Data Transmission Technology is made of a clock lane and several data channel.It is with data in transmitting terminal clock
Edge alignment, but the restriction due to various factors in transmission process can cause the inconsistent of each channel path lengths, cause
Phase relation between each channel of receiving terminal can become unknown.Solution to this problem is in initial phase into row of channels
Training, i.e.,：By the initial channels LVDS training method after the power is turned on into line position alignment and word alignment, calibrate by chip technology, electricity
Phase deviation caused by road transmission etc., makes sample in the center of data eye, realizes the correct sampling of image data.But root
According to pertinent literature, in subsequent image data transmission process, if because external environmental condition change or other reasons are led
Cause temperature to change or supply voltage drifts about, sampled point may bias data eye pattern center again, or even cause to adopt
Sample mistake.This reliability for receiving serious reduction high speed image data for a long time.
Therefore, sampled point bias data eye pattern center how is avoided, sample error is caused, is those skilled in the art's needs
It solves the problems, such as.
Invention content
The purpose of the present invention is to provide the real-time windows that a kind of high-speed data receives to monitor method and device, is kept away with realizing
Exempt from sampled point bias data eye pattern center, causes sample error.
To achieve the above object, an embodiment of the present invention provides following technical solutions：
A kind of real-time window monitoring method that high-speed data receives, including：
S10, detect data channel receive high-speed data when, into S11；
S11, the delay in the monitoring channel is increased by the first safe distance；
S12, judge whether the monitoring channel matches with the data acquired in the data channel；If mismatching, hold
Row S13；If matching, executes S14；
S13, the delay in the data channel and the monitoring channel is subtracted into predetermined delay bat, and continues to execute S12；
S14, the delay in the monitoring channel is reduced by the second safe distance；
S15, judge whether the monitoring channel matches with the data acquired in the data channel；If matching, executes
S16；If mismatching, S17 is executed；
S16, the delay in the monitoring channel is increased into first safe distance, and executes S11；
S17, add predetermined delay to clap the delay of the data channel and the monitoring channel, and continue to execute S15.
Wherein, further include before executing S10：
First safe distance and described is automatically determined using the transmission rate and reliability requirement of the high-speed data
Second safe distance.
Wherein, further include before executing S10：
Receive safe distance setting instruction；
According to the safe distance, instruction the first safe distance of setting and second safe distance are set.
Wherein, further include before executing S10：
Data channel corresponding with the high-speed data received and monitoring channel are generated by differential input buffer.
Wherein, data channel corresponding with the high-speed data received and monitoring channel are generated by differential input buffer
Later, further include：
Set the data channel and the initial time delay in the monitoring channel to same initial time delay.
A kind of real-time window monitoring arrangement that high-speed data receives, including：
Detection module, when for detecting that data channel receives high-speed data, triggering the first delay setup module；
First delay setup module, for the delay in the monitoring channel to be increased by the first safe distance；
First judgment module, for judging whether the data acquired in the monitoring channel and the data channel match；
If mismatching, triggering the second delay setup module；If matching, third delay setup module is triggered；
The second delay setup module, for the delay of the data channel and the monitoring channel to be subtracted predetermined prolong
When clap, and trigger first judgment module；
The third delay setup module, for the delay in the monitoring channel to be reduced by the second safe distance；
Second judgment module, for judging whether the data acquired in the monitoring channel and the data channel match；
If mismatching, the 4th delay setup module of triggering；If matching, the 5th delay setup module of triggering；
The 4th delay setup module, for the delay of the data channel and the monitoring channel to be added predetermined prolong
When clap, and trigger second judgment module；
The 5th delay setup module, for the delay in the monitoring channel to be increased by first safe distance, and
Triggering the first delay setup module.
Wherein, further include：
Safe distance determining module, for automatically determining institute using the transmission rate and reliability requirement of the high-speed data
State the first safe distance and second safe distance.
Wherein, further include：
Safe distance setup module is set for receiving safe distance setting instruction according to safe distance setting instruction
Set the first safe distance and second safe distance.
Wherein, further include：
Channel determining module, for generating number corresponding with the high-speed data of the reception by differential input buffer
According to channel and monitoring channel.
Wherein, further include：
Initial time delay setup module, for the data channel and the initial time delay in the monitoring channel to be set as same
Initial time delay.
By above scheme it is found that the real-time window monitoring side that a kind of high-speed data provided in an embodiment of the present invention receives
Method, including：S10, detect data channel receive high-speed data when, into S11；S11, the delay in the monitoring channel is increased
First safe distance；S12, judge whether the monitoring channel matches with the data acquired in the data channel；If mismatching,
Then execute S13；If matching, executes S14；S13, the delay of the data channel and the monitoring channel is subtracted into predetermined delay
It claps, and continues to execute S12；S14, the delay in the monitoring channel is reduced by the second safe distance；S15, judge that the monitoring is logical
Whether road matches with the data acquired in the data channel；If matching, executes S16；If mismatching, S17 is executed；S16、
The delay in the monitoring channel is increased into first safe distance, and executes S11；S17, by the data channel and the prison
Delay depending on channel adds predetermined delay to clap, and continues to execute S15.
As it can be seen that in the present solution, whether being matched by comparing the data of data channel and the acquisition of monitoring channel, if not
Match, then adjust the delay in two channels while corresponding, the sampled point of data channel is made to be always positioned at peace more smaller than valid window
In fully sampled window, to solve initial channel training after, in image data transmission process due to temperature change and voltage
The problem of sampled point caused by drift deviates again ensure that the high reliability that image data receives for a long time, and entire
During monitoring and delay adjustment, there is no any influence to normal data transmission；The invention also discloses a kind of high speed numbers
According to the real-time window monitoring arrangement of reception, equally above-mentioned technique effect can be realized.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is that the real-time window that a kind of high-speed data disclosed by the embodiments of the present invention receives monitors method flow schematic diagram；
Fig. 2 is that the real-time window that a kind of high-speed data disclosed by the embodiments of the present invention receives monitors process schematic；
Fig. 3 is the real-time window monitoring arrangement structural schematic diagram that a kind of high-speed data disclosed by the embodiments of the present invention receives.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses the real-time windows that a kind of high-speed data receives to monitor method and device, is avoided with realizing
Sampled point bias data eye pattern center, causes sample error.
Referring to Fig. 1, a kind of real-time window monitoring method that high-speed data receives provided in an embodiment of the present invention, including：
S10, detect data channel receive high-speed data when, into S11；
Specifically, the monitoring channel in the present embodiment is corresponding with data channel, that is, monitor that channel is passed with data channel
Therefore whether defeated data match by the monitoring to monitoring channel, just can detect sampled point in bias data eye pattern
The heart, to play the role of monitoring.
Specifically, in the present embodiment, can be generated by differential input buffer corresponding with the high-speed data received
Data channel and monitoring channel.Therefore the data that the data channel generated receives are that amplitude is equal with the data of monitoring channel reception
Two data of opposite in phase, so it refers in two channels that whether the data in the present embodiment in two channels of detection, which match,
Whether data are opposite.
Specifically, generating data channel corresponding with the high-speed data received by differential input buffer and monitoring logical
After road, it sets the data channel and the initial time delay in the monitoring channel to same initial time delay.
It should be noted that after initial channel is trained, the setting of monitoring channel is identical with data channel initial
Delay, and a safe distance is reasonably set according to message transmission rate etc., which is delay umber of beats, valid window
It is safe sampling window that left and right, which respectively inside contracts a safe distance, then executes S11.
S11, the delay in the monitoring channel is increased by the first safe distance；
S12, judge whether the monitoring channel matches with the data acquired in the data channel；If mismatching, hold
Row S13；If matching, executes S14；
S13, the delay in the data channel and the monitoring channel is subtracted into predetermined delay bat, and continues to execute S12；
Specifically, when being monitored to monitoring channel, it need to will monitor that the delay in channel increases by the first safe distance, here
The first safe distance can be a safe distance；Whether the data for comparing the acquisition of two channels match.If it does not match,
Illustrate to monitor that the sampled point in channel has initially entered left side transition region, and the sampled point in data channel away from left side transition region not
One safe distance of foot, i.e.,：Safe sampling window (but still in valid window) is deflected away from.At this moment it needs data channel and monitoring
The delay in channel all subtracts one, and accent executes S11；Conversely, then illustrating to monitor channel sample point still in valid window, data channel
Sampled point still in safe sampling window, then continues to execute S14.
It should be noted that when detecting that the data acquired in two channels mismatch, the delay to two channels is needed
Subtract predetermined delay to clap, it is that staff presets delay umber of beats which, which claps, and it can be one which, which claps,
Delay is clapped, or arbitrary delay is clapped.
S14, the delay in the monitoring channel is reduced by the second safe distance；
S15, judge whether the monitoring channel matches with the data acquired in the data channel；If matching, executes
S16；If mismatching, S17 is executed；
S16, the delay in the monitoring channel is increased into first safe distance, and executes S11；
S17, add predetermined delay to clap the delay of the data channel and the monitoring channel, and continue to execute S15.
Specifically, the second safe distance in the present embodiment is two safe distances；In S14-S17, channel will be monitored
Delay reduce two safe distances, compare two channels acquisition data whether match.If it does not match, illustrating that monitoring is logical
The sampled point in road has initially entered right side transition region, and the sampled point in data channel is away from right side transition region less than one safety
Distance, i.e.,：Safe sampling window (but still in valid window) is deflected away from.By data channel and monitor that the delay in channel all adds
One, accent executes S14；Conversely, then illustrate to monitor channel sample point still in valid window, data channel sampled point is still in safety
In sampling window, then it will monitor that the delay in channel increases a safe distance, circulating repetition executes S11-S17, starts a new round
Monitoring.
Specifically, the S11-S13 in the present embodiment is the first monitoring operation executed to monitoring channel, S14-S17 is
To second monitoring operation that monitoring channel executes, the two monitor what operation executed for cycle, to realize in data receiver
During duration sampled point is monitored, avoid sampled point bias data eye pattern center, cause sample error.
Based on above-described embodiment, in the present embodiment, further include before executing S10：
First safe distance and described is automatically determined using the transmission rate and reliability requirement of the high-speed data
Second safe distance；Alternatively,
Receive safe distance setting instruction；
According to the safe distance, instruction the first safe distance of setting and second safe distance are set.
It should be noted that the first safe distance and the second safe distance in the present embodiment can be systems according to high speed
The transmission rate and reliability requirement of data automatically determine, and can also be configured by receiving the setting instruction that user sends.
Second safe distance is two times of the first safe distance.Also, safe distance is to inside contract valid window to obtain safe sample window
The distance of mouth, its selection are related with valid window size and reliability design.Data transfer rate is higher, and valid window is smaller, safety
It is smaller apart from optional length；Reliability requirement is higher, and safe distance just should be bigger.
It is that the real-time window of high-speed data provided in this embodiment monitors process schematic, a in Fig. 2 is data referring to Fig. 2
When channel and monitoring channel most start to receive data, the sample in data channel is passed in safe sampling window in data
During defeated, the case where causing sampled point to deviate due to temperature change and voltage drift referring to the b in Fig. 2, by this reality
The high-speed data surveillance style that example offer is provided, by being adjusted to the delay of data channel and monitoring channel, referring in Fig. 2
C so that the sampled point of data channel is located in safe sampling window again；As it can be seen that being supervised in high-speed data provided in this embodiment
Depending on mode, after solving initial channel training, in image data transmission process caused by temperature change and voltage drift
The problem of sampled point deviates again makes sampled point be always positioned in a safe sampling window more smaller than valid window, ensures
The high reliability that image data receives for a long time.The high-speed data surveillance style provided through this embodiment need not use instruction
It practises handwriting, during entire monitoring and delay adjustment, the sampled point of data channel is in valid window always, to normal
Data transmission does not have any influence.
The real-time window monitoring arrangement received below to high-speed data provided in an embodiment of the present invention is introduced, and hereafter retouches
The real-time window monitoring arrangement that the real-time window monitoring arrangement that the high-speed data stated receives is received with above-described high-speed data
It can be cross-referenced.
Referring to Fig. 3, a kind of real-time window monitoring arrangement that high-speed data receives provided in an embodiment of the present invention, including：
Detection module 100, when for detecting that data channel receives high-speed data, triggering the first delay setup module；
First delay setup module 200, for the delay in the monitoring channel to be increased by the first safe distance；
First judgment module 300, data for judging to acquire in monitoring channel and the data channel whether
Match；If mismatching, triggering the second delay setup module 400；If matching, third delay setup module 500 is triggered；
The second delay setup module 400, it is pre- for subtracting the delay in the data channel and the monitoring channel
Fixed delay is clapped, and triggers first judgment module 300；
The third delay setup module 500, for the delay in the monitoring channel to be reduced by the second safe distance；
Second judgment module 600, data for judging to acquire in monitoring channel and the data channel whether
Match；If mismatching, the 4th delay setup module 700 of triggering；If matching, the 5th delay setup module 800 of triggering；
The 4th delay setup module 700, it is pre- for adding the delay in the data channel and the monitoring channel
Fixed delay is clapped, and triggers second judgment module 600；
The 5th delay setup module 800, for the delay in the monitoring channel to be increased by first safe distance,
And trigger the first delay setup module 200.
Based on above-described embodiment, further include in the present embodiment：
Safe distance determining module, for automatically determining institute using the transmission rate and reliability requirement of the high-speed data
State the first safe distance and second safe distance.
Based on above-described embodiment, further include in the present embodiment：
Safe distance setup module is set for receiving safe distance setting instruction according to safe distance setting instruction
Set the first safe distance and second safe distance.
Based on above-described embodiment, further include in the present embodiment：
Channel determining module, for generating number corresponding with the high-speed data of the reception by differential input buffer
According to channel and monitoring channel.
Based on above-described embodiment, further include in the present embodiment：
Initial time delay setup module, for the data channel and the initial time delay in the monitoring channel to be set as same
Initial time delay.
High-speed data monitoring arrangement provided in this embodiment can utilize prison in the case where not influencing data normal transmission
Sampled point is monitored in real time depending on channel at a distance from valid window right boundary, circuit delay is readjusted in time as needed, makes
Sampled point is always positioned in a safe sampling window more smaller than valid window, thereby ensures that image data receives for a long time
High reliability.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. the real-time window that a kind of high-speed data receives monitors method, which is characterized in that including：
S10, detect data channel receive high-speed data when, into S11；
S11, it will monitor that the delay in channel increases by the first safe distance；
S12, judge whether the monitoring channel matches with the data acquired in the data channel；If mismatching, execute
S13；If matching, executes S14；
S13, the delay in the data channel and the monitoring channel is subtracted into predetermined delay bat, and continues to execute S12；
S14, the delay in the monitoring channel is reduced by the second safe distance；Wherein, second safe distance is described first
Twice of safe distance；
S15, judge whether the monitoring channel matches with the data acquired in the data channel；If matching, executes S16；
If mismatching, S17 is executed；
S16, the delay in the monitoring channel is increased into first safe distance, and executes S11；
S17, add predetermined delay to clap the delay of the data channel and the monitoring channel, and continue to execute S15.
2. the real-time window that high-speed data according to claim 1 receives monitors method, which is characterized in that execute S10 it
Before further include：
First safe distance and described second are automatically determined using the transmission rate and reliability requirement of the high-speed data
Safe distance.
3. the real-time window that high-speed data according to claim 1 receives monitors method, which is characterized in that execute S10 it
Before further include：
Receive safe distance setting instruction；
According to the safe distance, instruction the first safe distance of setting and second safe distance are set.
4. the real-time window that the high-speed data according to any one of claim 1-3 receives monitors that method, feature exist
In executing S10 further includes before：
Data channel corresponding with the high-speed data received and monitoring channel are generated by differential input buffer.
5. the real-time window that high-speed data according to claim 4 receives monitors method, which is characterized in that defeated by difference
After entering buffer generation data channel corresponding with the high-speed data received and monitoring channel, further include：
Set the data channel and the initial time delay in the monitoring channel to same initial time delay.
6. the real-time window monitoring arrangement that a kind of high-speed data receives, which is characterized in that including：
Detection module, when for detecting that data channel receives high-speed data, triggering the first delay setup module；
First delay setup module, for that will monitor that the delay in channel increases by the first safe distance；
First judgment module, for judging whether the data acquired in the monitoring channel and the data channel match；If no
Matching then triggers the second delay setup module；If matching, third delay setup module is triggered；
The second delay setup module, for the delay of the data channel and the monitoring channel to be subtracted predetermined delay
It claps, and triggers first judgment module；
The third delay setup module, for the delay in the monitoring channel to be reduced by the second safe distance；
Second judgment module, for judging whether the data acquired in the monitoring channel and the data channel match；If no
Matching then triggers the 4th delay setup module；If matching, the 5th delay setup module of triggering；
The 4th delay setup module, for the delay of the data channel and the monitoring channel to be added predetermined delay
It claps, and triggers second judgment module；
The 5th delay setup module for the delay in the monitoring channel to be increased by first safe distance, and triggers
First delay setup module.
7. the real-time window monitoring arrangement that high-speed data according to claim 6 receives, which is characterized in that further include：
Safe distance determining module, for automatically determining described using the transmission rate and reliability requirement of the high-speed data
One safe distance and second safe distance.
8. the real-time window monitoring arrangement that high-speed data according to claim 6 receives, which is characterized in that further include：
Instruction setting the is arranged according to the safe distance for receiving safe distance setting instruction in safe distance setup module
One safe distance and second safe distance.
9. the real-time window monitoring arrangement that the high-speed data according to any one of claim 6-8 receives, feature exist
In further including：
Channel determining module, it is logical for generating data corresponding with the high-speed data of the reception by differential input buffer
Road and monitoring channel.
10. the real-time window monitoring arrangement that high-speed data according to claim 9 receives, which is characterized in that further include：
Initial time delay setup module, for the initial time delay in the data channel and the monitoring channel to be set as same initial
Delay.
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| JP2010518749A (en) * | 2007-02-12 | 2010-05-27 | ラムバス・インコーポレーテッド | High speed low power differential receiver RobertE. PalmerJohnW. Paulton |
| CN101951313B (en) * | 2010-09-08 | 2013-04-10 | 烽火通信科技股份有限公司 | FPGA-based SFI4.1 device |
| CN204272138U (en) * | 2014-12-09 | 2015-04-15 | 武汉普赛斯电子技术有限公司 | A kind of eye pattern testing apparatus of high speed signal |
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