CN109412756A - A kind of double-link backup method, system and storage medium based on optical fiber 4KHDR ultra high-definition transmission of video - Google Patents
A kind of double-link backup method, system and storage medium based on optical fiber 4KHDR ultra high-definition transmission of video Download PDFInfo
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- CN109412756A CN109412756A CN201811331323.3A CN201811331323A CN109412756A CN 109412756 A CN109412756 A CN 109412756A CN 201811331323 A CN201811331323 A CN 201811331323A CN 109412756 A CN109412756 A CN 109412756A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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Abstract
The invention discloses a kind of double-link backup methods based on optical fiber 4KHDR ultra high-definition transmission of video, include the following steps: data reception step, view, the consistent data packets of audio data are obtained from two different links simultaneously respectively, and data packet is the label identified with a kind of link redundancy and the data packet of the serial number of data packet arrival time for identification；Label either with another link redundancy mark and for identification data packet of the serial number of data packet arrival time；The data packet of label and serial number either without link redundancy mark；Data packet upload process step, whether real-time detection has label from the received data packet of both links respectively, first uploads the data packet of not label as effective data packets；For having the data packet of label, sequence of extraction number, serial number corresponding with the data packet having been received is compared.The invention also discloses a kind of dual link standby system and storage medium, the present invention can guarantee that video data does not interrupt transmission display.
Description
Technical field
The present invention relates to data redundancy backup fields more particularly to a kind of based on optical fiber 4KHDR ultra high-definition transmission of video
Double-link backup method, system and storage medium.
Background technique
In communication engineering, redundancy is pointed out in system security and reliability etc. the considerations of, artificially to some passes
Key member or function carry out duplicate configuration.When system jam, for example a certain equipment is damaged, the portion of redundant configuration
Part can be used as redundant, intervene and undertake the work of trouble unit in time, thus reduce the fault time of system.Redundancy is used for especially
Emergency processing.Redundancy can reside in different level, such as network redundancy, server redundancy, disk redundancy, data redundancy.
Currently, 4KHDR ultra high-definition Video transmission system be HDR (high dynamic range technology) ultra high-definition resolution ratio video into
The mode of row encoding and decoding is simultaneously transmitted by fiber medium at a distance, realizes that HDR ultra high-definition signal is remotely shown, signal is cut
It changes, picture is divided and the functions such as video wall.The backup of its signal redundancy is the means that guarantee system safety and stability runs without interruption, because
And high efficiency, the redundancy technique of low cost is used to become more and more important.Comparing traditional signal backup mode is using link
Backup, when link backup is exactly that the connection between a point and b point only has a route (A line), when failure between a point and b point
Can not just communicate, then just be further added by route (B line) between a point and b point, when A line when something goes wrong, B can be used
Line keeps the communication between a point and b point.When using link backup technology, it is active link that a wherein link, which need to be arranged, in addition
One is then backup link.When active link failure, reserve link is automatically switched to.In this process, it needs to examine in real time
Survey active link state.When active link failure, generally required from detection active link state auto-switching to backup link
At least time of a few tens of milliseconds, this means that the data transmission of link will appear the interruption of at least a few tens of milliseconds, causes active and standby
When link switching, video pictures can just restore after blank screen several seconds.At the same time, when active link restores, system is still real-time
Detect active link state, when detecting active link energy normal use, backup link automatically switches to active link, at this time according to
Can so there is a problem of above-mentioned same.Based on this, a kind of sound, transmission of video redundancy backup method are provided, can guarantee data not
The problem of interrupting transmission display, being current urgent need to resolve.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide one kind to be based on optical fiber 4KHDR superelevation
The double-link backup method of clear transmission of video can guarantee that video data does not interrupt transmission display.
An object of the present invention adopts the following technical scheme that realization:
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video, includes the following steps: data receiver
Step, obtains view, the consistent data packet of audio data from two different links simultaneously respectively, and the data packet is with a kind of chain
The label of road Redundant representations and for identification data packet of the serial number of data packet arrival time；Either with another link
The label of Redundant representations and for identification data packet of the serial number of data packet arrival time；Either without link redundancy mark
The data packet of label and serial number；Data packet upload process step, respectively real-time detection be from the received data packet of both links
It is no to have label, first using the data packet of not label as effective data packets upload process；For having the data packet of label, mention
Its serial number is taken, serial number corresponding with the data packet having been received is compared, and judges whether current data packet has connect
It received, if so, the data packet is abandoned, if it is not, being then used as effective data packets upload process.
Further, in the data reception step, the data packet received also have passed through CRC processing.
Further, in the data reception step, CRC check is also carried out to the data packet received, by error
Correct data packet is carried out the data packet upload process step by data packet discarding.
Further, in the data packet upload process step, when local storage space is full, to the data received
For packet in order number according to first in first out, the data packet of new sequences number squeezes out the data packet of old serial number.
The second object of the present invention is to provide a kind of dual link standby system, can guarantee that video data does not interrupt transmission
Display.
The second object of the present invention adopts the following technical scheme that realization:
A kind of dual link standby system, including video server, link backup transmitter and link backup receiver, it is described
The data that link backup transmitter is used to upload the video server are handled after carrying out coded data packet by redundancy backup
It is sent to the link backup receiver from two optical fiber interfaces respectively, the link backup receiver is for realizing such as the present invention
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video described in the first purpose.
Further, the link backup transmitter includes the first FPGA unit, and first FPGA unit is connected with
HDMI2.0 interface, 1G network interface, 3.5mm analog audio interface, USB2.0 interface, infrared output interface, infrared input connect
Mouth, RS232 interface, what first FPGA unit was used to receive does not have to type signal progress coded data packet.
Further, the link backup transmitter includes the second FPGA unit, and second FPGA unit is for receiving
The data packet of the first FPGA unit output, is sent to the link backup after carrying out link redundancy backup processing to data packet
Receiver.
The third object of the present invention is to provide a kind of dual link standby system, can guarantee that video data does not interrupt transmission
Display.
The third object of the present invention adopts the following technical scheme that realization:
A kind of dual link standby system, including the first video server, the second video server, the first link backup are sent
Device, the second link backup transmitter, the first active and standby engine, the second active and standby engine, the first link backup receiver and the second link
Backup receiver, the data that first video server, the second video server are sent are consistent, the first link backup hair
After sending data of the device for uploading first video server to carry out coded data packet by redundancy backup processing respectively from
Two optical fiber interfaces are sent to the described first active and standby engine and the second active and standby engine, and the second link backup transmitter is for same
When will second video server upload data carry out coded data packet after by redundancy backup processing respectively from two light
Fine interface is sent to the described first active and standby engine and the second active and standby engine；The first link backup receiver is respectively from described
One active and standby engine, the second active and standby engine obtain the data packet from the first video server, the second video server, realize such as this
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video, second chain described in one of goal of the invention
Backup receiver in road is obtained from the described first active and standby engine, the second active and standby engine from the first video server, the second view respectively
The data packet of frequency server, realizing a kind of 4KHDR ultra high-definition transmission of video based on optical fiber as described in one of the object of the invention
Double-link backup method.
Further, the first link backup receiver and the second link backup receiver are separately connected different displays
Device.
The fourth object of the present invention is to provide a kind of storage medium, can guarantee that video data does not interrupt and transmit display.
The fourth object of the present invention adopts the following technical scheme that realization:
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
A kind of dual link backup side based on optical fiber 4KHDR ultra high-definition transmission of video as described in one of the object of the invention is realized when row
Method.
Compared with prior art, the beneficial effects of the present invention are:
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video, system and storage of the invention is situated between
Matter sends video, packets of audio data using dual link, right using the data packet of not label as effective data packets upload process
In the data packet for having label, the received data packet for corresponding to the serial number excessively is judged whether by serial number, if it is not, then will
The data packet upload process, as soon as in this way, when link failure, the data packet on another chain of stations road can no-delay ground come into
Row decoding display, avoids data-transmission interruptions, guarantees that video data does not interrupt transmission display.
Detailed description of the invention
Fig. 1 is to invent a kind of double-link backup method flow chart based on optical fiber 4KHDR ultra high-definition transmission of video；
Fig. 2 is to invent a kind of each module connection figure of dual link standby system；
Fig. 3 is link backup transmitter architecture schematic diagram；
Fig. 4 is each module connection figure of another dual link standby system.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Embodiment one:
Dual link standby system as shown in Figure 2, including video server, link backup transmitter and link backup receive
Device, the data which is used to upload the video server pass through at redundancy backup after carrying out coded data packet
Reason is sent to the link backup receiver from two optical fiber interfaces respectively, and the link backup receiver is for realizing as shown in Figure 1
Double-link backup method.
The present embodiment proposes dual link protection mechanism, and no active link and backup link are distinguished, without identifying link state.
Successively judge that link moves towards by the data packet of both links, the back mechanism that no active/standby server, main/slave link are distinguished, link
Trend depends entirely on the data speed packet of both links.When ensuring any link failure, it is automatic that zero propagation moment is seamless
Switch an other link, video pictures are normally shown, are switched without blank screen, without splashette, user's unaware guarantees that data are not interrupted
Transmission display.Video server sends video data, audio data etc. by link backup transmitter, link backup transmitter
As shown in figure 3, the link backup transmitter includes the first FPGA unit and the second FPGA unit, which is connected with
HDMI2.0 interface, 1G network interface, 3.5mm analog audio interface, USB2.0 interface, infrared output interface, infrared input connect
Mouth, RS232 interface, what which was used to receive does not have to type signal progress coded data packet.First FPGA
Unit is by the HDMI2.0 vision signal received, analog audio signal, 1G network signal, USB2.0 signal, RS232 signal, red
After outer input/output signal etc. does not have to type signal progress coded data packet, data packet is transferred to the second FPGA unit, this second
FPGA unit is used to receive the data packet of first FPGA unit output, sends after carrying out link redundancy backup processing to data packet
To the link backup receiver.Second FPGA unit adds the label identified with link redundancy and identification to the data packet to be sent
Whether the serial number of data packet arrival time receives and judges packet sequence convenient for following link backup receiver and receive.
In addition, CRC need to be recalculated for subsequent inspection data error of transmission.After completing above-mentioned link redundancy backup processing, link is standby
Part transmitter sends data packet by two optical fiber interfaces respectively, it should be noted that two optical fiber interfaces send the number of data
It is consistent according to packet.
Link backup receiver receives the data packet of different links from two ports respectively, carries out (the cyclic redundancy school CRC
Test Cyclic Redundancy Check) it examines, CRC check is a kind of according to the production of the data such as network packet or computer document
A kind of hash function of raw brief fixed digit check code is mainly used to detect or verify data transmission or may go out after saving
Existing mistake.It is to make error detection using the principle of division and remainder.In data transmission procedure, no matter Transmission system
Design it is how perfect again, mistake always exists, and this mistake may result in one or more frame transmitted on the link
It is destroyed and (bit error occurs, 0) 0, which becomes 1 or 1, becomes, so that reciever receives the data of mistake.To improve as far as possible
Reciever receives the accuracy of data, needs to carry out error detection to data before recipient receives data, and if only if inspection
It is received when the result of survey is correct and really accepts data just now.There are many modes of detection, seldom repeats here.CRC check will
The data of error abandon, and correctly enter and handle in next step.Due to the data packet that link backup transmitter is sent, for one kind
The label of link redundancy mark and for identification data packet of the serial number of data packet arrival time；Either without link redundancy mark
The label of knowledge and the data packet of serial number.Since receiving end can receive the data of both links transmission simultaneously, also can receive
The data of single-link transmitting terminal, therefore, the data packet that two ports of link backup receiver receive, it may be possible to one kind
The data packet of the label of link redundancy mark and for identification data packet and label and serial number without link redundancy mark, can also
It can be the data packets that both links are the label that no link redundancy identifies and serial number.It is also likely to be that both links have
The label of link redundancy mark and for identification data packet.The link backup receiver number that first detection both links receive respectively
It directly gives a layer service using the data packet of not label as effective data packets according to whether packet has label and is decoded
Processing.For there is the data packet of label, its serial number is extracted first, with being recorded in the suitable of the local data packet received
Serial number compares, and judges whether the data packet being currently received is received and crosses, abandons if received mistake, do not connect
It received and is decoded processing with regard to submitting to upper layer as effective data packets, and serial number is recorded in local.Pass through two in this way
The comparison of link real time data, when the corresponding link failure of the data packet of not no label, link backup receiver is received at this time
The data packet of redundancy backup link extracts the serial number for having the data packet of label, is compared by record to record is locally stored and is not had
There is the data packet of corresponding serial number, then processing is decoded using the data packet as effective data packets upload at this time, with this
Realize the redundancy backup of video, audio data.It should be noted that due to consideration that link backup receiver local storage space
Limited, the present embodiment is managed for being recorded in the serial number of local data accepted packet according to the principle of first in first out,
When local recording space is full, the corresponding data packet of new serial number just squeezes the corresponding data packet of serial number come earliest
Out.
A kind of dual link standby system of the invention sends video, packets of audio data using dual link, by not label
Data packet is judged whether received as effective data packets upload process for having the data packet of label by serial number
The data packet for corresponding to the serial number is crossed, if it is not, then by the data packet upload process, in this way, when a link failure, Ling Yitai
The data packet of link can no-delay ground pass and be decoded display, avoid data-transmission interruptions, guarantee video data not in
The defeated display of stealpass.
Embodiment two:
Embodiment two discloses another dual link standby system, as shown in Figure 4 comprising the first video server,
Two video servers, the first link backup transmitter, the second link backup transmitter, the first active and standby engine, the second active and standby engine,
First link backup receiver and the second link backup receiver, first video server, the second video server are sent
Data are consistent, after the data which is used to upload first video server carry out coded data packet
It is handled by redundancy backup and is sent to the first active and standby engine and the second active and standby engine, second chain from two optical fiber interfaces respectively
Backup transmitter in road is for passing through redundancy backup after the data that second video server uploads are carried out coded data packet simultaneously
Processing is sent to the first active and standby engine and the second active and standby engine from two optical fiber interfaces respectively；The first link backup receiver
Data packet is obtained from the first active and standby engine, the second active and standby engine respectively, realizes double-link backup method as shown in Figure 1, it should
Second link backup receiver obtains data packet from the first active and standby engine, the second active and standby engine respectively, realizes as shown in Figure 1
Double-link backup method.
Different from the dual link standby system of embodiment one, the dual link standby system of the present embodiment is in the superfluous of embodiment one
Increase mostly a kind of redundancy backup mode of video data in remaining back mechanism, it is ensured that link backup receiver is in a Video service
When the data link failure of device, data packet can be obtained by another video server data link.In Fig. 4, the first video
Server, the second video server send consistent data to corresponding link backup transmitter respectively, and the first link is standby
Part transmitter receives the data of the first video server, and different types of data is carried out after coded data packet to the data to be sent
Packet is plus the label and the serial number of identification data packet arrival time identified with link redundancy.Then data packet is passed through into two light
Fine interface divides both links to send data packet, wherein an active and standby engine of link connection first, another link connection second is main
Standby engine；Similarly the second link backup transmitter receives the data of the second video server, and different types of data is encoded
The label and the serial number of identification data packet arrival time identified with link redundancy is added after data packet to the data packet to be sent.
Then divide both links to send data packet by two optical fiber interfaces data packet, draw wherein a link connection first is active and standby
It holds up, another active and standby engine of link connection second.After first active and standby engine, the second active and standby engine are by exchange control processing, the
One link backup receiver respectively from both links receive from the first video server, the second video server video,
Audio data, due to the data packet that link backup transmitter is sent, for the label identified with a kind of link redundancy and for knowing
The data packet of the serial number of other data packet arrival time；The data packet of label and serial number either without link redundancy mark.
Since receiving end can receive the data of both links transmission simultaneously, it also can receive the data of single-link transmitting terminal, therefore, chain
The data packet that two ports of road backup receiver receive, it may be possible to a kind of link redundancy mark label and for knowing
The data packet of other data packet and label and serial number without link redundancy mark, it is also possible to which both links are no link redundancies
The label of mark and the data packet of serial number.Be also likely to be both links be with link redundancy mark label and for knowing
Other data packet.Whether the first link backup receiver data packet that first detection both links receive respectively has label, will not have
There is the data packet of label as effective data packets, directly gives a layer service and be decoded processing.For there is the data of label
Packet, extracts its serial number first, and the serial number with being recorded in the local data packet received compares, and judgement is current
Whether the data packet received is received to be crossed, and is abandoned if received mistake, is not received just as effective data packets
It submits to upper layer and is decoded processing, and serial number is recorded in local.It is compared in this way by both links real time data, when
When not having the corresponding link failure of the data packet of label, link backup receiver extracts the sequence for having the data packet of label at this time
Number, it is compared by record to the data packet recorded without corresponding serial number is locally stored, at this time then using the data packet as effectively
Data packet upload is decoded processing, and the redundancy backup of video, audio data can be realized with this.Similarly the second link backup connects
Device is received also to receive from both links from the first video server, the video of the second video server, audio data respectively,
Data processing principle is identical as the first link backup receiver, seldom repeats here.It should be noted that the first active and standby engine,
Second active and standby engine is handled by exchange control, in this way, the data packet that two backup receivers are received by two ports, it can
Can include following three kinds of situations:
1, wherein label and for identification data packet arrival time of the data packet of a link with link redundancy mark
Serial number, the data packet of another link without Redundant representations label and serial number；
2, wherein label and for identification data packet arrival time of the data packet of a link with link redundancy mark
Serial number, another link has the label and the sequence of data packet arrival time for identification of another link redundancy mark
Number；
3, the label and data packet arrival time for identification that wherein link has another link redundancy mark
Serial number, the data packet of another link without Redundant representations label and serial number.
4, the data packet of both links is without the label of Redundant representations and serial number.
The first link backup receiver and the second link backup receiver are separately connected different displays, pass through decoding
It can be in showing video on display after processing.Video, packets of audio data are sent using dual link, above-mentioned 3 kinds of situations are connect
The data packet received is led to using the data packet of not label as effective data packets upload process for having the data packet of label
It crosses serial number and judges whether the received data packet for corresponding to the serial number excessively, if it is not, then by the data packet upload process, this
Sample, as soon as when link failure, the data packet on another chain of stations road can no-delay ground pass and be decoded display, avoid data
Transmission guarantees that video data does not interrupt transmission display.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video, which is characterized in that including walking as follows
It is rapid:
Data reception step obtains view, the consistent data packet of audio data, the data packet from two different links simultaneously respectively
For a kind of identified with link redundancy the label and for identification data packet of the serial number of data packet arrival time；Either band
There are the label and the data packet of the serial number of data packet arrival time for identification of another link redundancy mark；Either without chain
The label of road Redundant representations and the data packet of serial number；
Data packet upload process step, whether real-time detection has label from the received data packet of both links respectively, will first not have
There is the data packet of label as effective data packets upload process；For having the data packet of label, its serial number is extracted, and
Whether the corresponding serial number of the data packet received is compared, judge current data packet received mistake, should if so, abandoning
Data packet, if it is not, being then used as effective data packets upload process.
2. a kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video as described in claim 1, feature
Be: in the data reception step, the data packet received also have passed through CRC processing.
3. a kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video as claimed in claim 2, feature
It is: in the data reception step, CRC check is also carried out to the data packet received, it, will by the data packet discarding of error
Correct data packet carries out the data packet upload process step.
4. a kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video as described in claim 1, feature
It is: in the data packet upload process step, when local storage space is full, to the data packet received number root in order
According to first in first out, the data packet of new sequences number squeezes out the data packet of old serial number.
5. a kind of dual link standby system, it is characterised in that: connect including video server, link backup transmitter and link backup
Device is received, the link backup transmitter is used to pass through redundancy after the data that the video server uploads are carried out coded data packet
Back-up processing is sent to the link backup receiver from two optical fiber interfaces respectively, the link backup receiver for realizing
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video as described in claim 1-4 any one.
6. a kind of dual link standby system as claimed in claim 5, it is characterised in that: the link backup transmitter includes the
One FPGA unit, first FPGA unit be connected with HDMI2.0 interface, 1G network interface, 3.5mm analog audio interface,
USB2.0 interface, infrared output interface, infrared input interface, RS232 interface, what first FPGA unit was used to receive
Coded data packet is carried out without type signal.
7. a kind of dual link standby system as claimed in claim 6, it is characterised in that: the link backup transmitter includes the
Two FPGA units, second FPGA unit are used to receive the data packet of the first FPGA unit output, carry out to data packet
The link backup receiver is sent to after link redundancy backup processing.
8. a kind of dual link standby system, it is characterised in that: including the first video server, the second video server, the first chain
Road backup transmitter, the second link backup transmitter, the first active and standby engine, the second active and standby engine, the first link backup receiver
And the second link backup receiver, the data that first video server, the second video server are sent are consistent, and described first
Link backup transmitter is used to pass through redundancy backup after the data that first video server uploads are carried out coded data packet
Processing is sent to the described first active and standby engine from two optical fiber interfaces respectively and the second active and standby engine, second link are standby
Data of part transmitter for simultaneously uploading second video server pass through at redundancy backup after carrying out coded data packet
Reason is sent to the described first active and standby engine and the second active and standby engine from two optical fiber interfaces respectively；First link backup
Receiver obtains from the described first active and standby engine, the second active and standby engine respectively and comes from the first video server, the second Video service
The data packet of device is realized a kind of double based on optical fiber 4KHDR ultra high-definition transmission of video as described in claim 1-4 any one
Link backup method, the second link backup receiver are obtained from the described first active and standby engine, the second active and standby engine respectively
The data packet from first video server, second video server is fetched, realizes such as claim 1-4 any one
A kind of double-link backup method based on optical fiber 4KHDR ultra high-definition transmission of video.
9. a kind of dual link standby system as claimed in claim 8, it is characterised in that: the first link backup receiver and
The second link backup receiver is separately connected different displays.
10. a kind of computer readable storage medium, is stored thereon with computer program, it is characterised in that: the computer program
Realize that one kind as described in claim 1-4 any one is based on optical fiber 4KHDR ultra high-definition transmission of video when being executed by processor
Double-link backup method.
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| CN201811331323.3A CN109412756A (en) | 2018-11-09 | 2018-11-09 | A kind of double-link backup method, system and storage medium based on optical fiber 4KHDR ultra high-definition transmission of video |
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| CN201811331323.3A CN109412756A (en) | 2018-11-09 | 2018-11-09 | A kind of double-link backup method, system and storage medium based on optical fiber 4KHDR ultra high-definition transmission of video |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164212A (en) * | 2019-05-28 | 2019-08-23 | 刘秀萍 | A kind of shared interaction classroom system in cross-region space |
| CN114866848A (en) * | 2022-04-02 | 2022-08-05 | 北京广播电视台 | IP video main and standby data filtering system and filtering method |
| CN115065858A (en) * | 2022-08-18 | 2022-09-16 | 广州市保伦电子有限公司 | Audio and video transmission method and system based on double optical fibers |
| CN115473794A (en) * | 2022-11-02 | 2022-12-13 | 广州市保伦电子有限公司 | Ultralow-delay switching processing method and system under audio dual backup |
| CN115550683A (en) * | 2021-06-29 | 2022-12-30 | 华为技术有限公司 | Video data transmission method and device |
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2018
- 2018-11-09 CN CN201811331323.3A patent/CN109412756A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164212A (en) * | 2019-05-28 | 2019-08-23 | 刘秀萍 | A kind of shared interaction classroom system in cross-region space |
| CN115550683A (en) * | 2021-06-29 | 2022-12-30 | 华为技术有限公司 | Video data transmission method and device |
| CN114866848A (en) * | 2022-04-02 | 2022-08-05 | 北京广播电视台 | IP video main and standby data filtering system and filtering method |
| CN115065858A (en) * | 2022-08-18 | 2022-09-16 | 广州市保伦电子有限公司 | Audio and video transmission method and system based on double optical fibers |
| CN115065858B (en) * | 2022-08-18 | 2022-11-15 | 广州市保伦电子有限公司 | Audio and video transmission method and system based on double optical fibers |
| CN115473794A (en) * | 2022-11-02 | 2022-12-13 | 广州市保伦电子有限公司 | Ultralow-delay switching processing method and system under audio dual backup |
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