CN105578211B - Live streaming based on unlimited service node accelerates network interim card optimization method and system - Google Patents
Live streaming based on unlimited service node accelerates network interim card optimization method and system Download PDFInfo
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- CN105578211B CN105578211B CN201510941097.0A CN201510941097A CN105578211B CN 105578211 B CN105578211 B CN 105578211B CN 201510941097 A CN201510941097 A CN 201510941097A CN 105578211 B CN105578211 B CN 105578211B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2385—Channel allocation; Bandwidth allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23103—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion using load balancing strategies, e.g. by placing or distributing content on different disks, different memories or different servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2405—Monitoring of the internal components or processes of the server, e.g. server load
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- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides the live streaming based on unlimited service node and accelerates network interim card optimization method and system, between source node server, several regional center servers, several edge node servers and several clients that the method is used to interact, the method includes：Whether detection client there is interim card；When detecting that interim card occurs in client, judge whether the ratio of Caton phenomenon occur more than the first preset ratio in all clients with client common edge node server；When more than the first preset ratio, edge node server is replaced to there is the client of Caton phenomenon.The invention is adjusted by the dynamic optimization of link between client and edge node server, to ensure that client can use the shake of network link, is promoted network service quality, to optimize Caton phenomenon, while being promoted the usage experience of client.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to the live streaming based on unlimited service node accelerates the optimization of network interim card
Method and system.
Background technology
With the development of network technology and video technique, there are more video vendors that can provide video source to the user, such as
Youku.com, iqiyi.com and Sohu etc..User can watch various videos and internet video live broadcasting program by network.User can also
Programme televised live is watched online by terminal devices such as computer and smart mobile phones.Although present network bandwidth can be supported
The download of high-speed large-flow.But due to various reasons, network transfer speeds are likely to occur unstable situation.This shakiness
Fixed situation will directly affect the download and broadcasting of programme televised live, be susceptible to broadcasting interim card.Although after interim card, user
It can continue to watch.But network interim card not only influences the effect of watching of user, but also regarding when user's omission interim card can be made
Frequency content.
Invention content
The purpose of the present invention is to provide it is a kind of can dynamically adjust network link and can optimize live streaming interim card based on
The live streaming of unlimited service node accelerates network interim card optimization method and system.
In order to solve the above technical problems, invention uses technical solution as described below.Live streaming based on unlimited service node
Accelerate network interim card optimization method, including the method be used for interact source node server, several regional center services
Between device, several edge node servers and several clients, it the described method comprises the following steps：Whether detection client goes out
Existing interim card；When interim card occurs in client, judgement blocks with all clients of client common edge node server
Whether the ratio for phenomenon of pausing is more than the first preset ratio；When more than the first preset ratio, to there is the client of Caton phenomenon
Replace edge node server.
Preferably, the detection client whether occur further include before interim card：From several edge node servers, point
With an edge node server to client；The net cast flow data request for receiving client judges edge node server
In whether store the net cast flow data of client request；When storage has the net cast stream in edge node server
When data, the net cast flow data is sent into the client；When not storing, edge node server takes to regional center
Business device obtains the net cast flow data, and the net cast flow data is sent the client.
Preferably, it is also wrapped when the edge node server obtains the net cast flow data to regional center server
It includes：Whether detection edge node server there is interim card；When interim card occurs in edge node server, judge to take with fringe node
Whether the ratio for being engaged in occurring in all edge node servers of device common area central server Caton phenomenon is pre- more than second
If ratio；When more than the second preset ratio, regional center server is replaced to there is the edge node server of Caton phenomenon.
Preferably, the detection edge node server whether occur further include before interim card：It is taken from several regional centers
It is engaged in device, one regional center server of distribution is to edge node server；Receive the net cast stream of edge node server
Request of data；Judge the net cast flow data that edge node server is asked whether is stored in regional center server；When
When storage has the net cast flow data in regional center server, the net cast flow data is sent into the fringe node
Server；When not storing, regional center server obtains the net cast flow data to source node server, and this is regarded
Frequency live streaming flow data sends the edge node server.
Preferably, the edge node server includes the first buffer area, and first buffer area also executes step：Judge
Whether the pre- reproduction time of data cached first in the first buffer area is more than the first maximum delay threshold value；It is broadcast in advance when described first
When putting the time and being more than the first maximum delay threshold value, then the net cast flow data in first buffer area is pumped；The region
Central server includes the second buffer area, and second buffer area also executes step：Judge data cached in the second buffer area
The second pre- reproduction time whether more than the second maximum delay threshold value；When the described second pre- reproduction time is more than the second maximum delay
When threshold value, then the net cast flow data in second buffer area is pumped.
Live streaming based on unlimited service node accelerates network interim card optimization system, the system comprises source node server,
Several regional center servers, several edge node servers and several clients, the source node server is for receiving
With distribution net cast flow data, regional center server is interconnected with the source node server to obtain net cast stream
Data, edge node server are connected between the regional center server and the client, and are used for net cast stream
The caching of data；The edge node server further includes：First detection unit, for detecting whether client interim card occurs；
First comparing unit, for when interim card occurs in client, judging all clients with client common edge node server
Whether occurs the ratio of Caton phenomenon in end more than the first preset ratio；First replaces unit, for when more than the first default ratio
When example, edge node server is replaced to there is the client of Caton phenomenon.
Preferably, the edge node server further includes：First allocation unit is used for from several edge node servers
In, one edge node server of distribution is to client；First receiving unit, the net cast flow data for receiving client
Request；First judging unit, the net cast fluxion for judging whether to store client request in edge node server
According to；First transmission unit, for when in edge node server storage have the net cast flow data when, the video is straight
It broadcasts flow data and sends the client；When not storing, edge node server is straight to the regional center server acquisition video
Flow data is broadcast, and the net cast flow data is sent into the client.
Preferably, the regional center server further includes：Second detection unit is for detecting edge node server
It is no interim card occur；Second comparing unit, it is total with edge node server for when interim card occurs in edge node server, judging
With whether occurring the ratio of Caton phenomenon in all edge node servers of regional center server more than the second preset ratio；
Second replaces unit, for when more than the second preset ratio, region to be replaced to there is the edge node server of Caton phenomenon
Central server.
Preferably, the regional center server further includes：Second allocation unit is used for from several regional center servers
In, one regional center server of distribution is to edge node server；Second receiving unit, for receiving edge node server
Net cast flow data request；Second judgment unit, for judging whether stored fringe node in regional center server
The net cast flow data of server request；Second transmission unit has the video for working as storage in regional center server
When flow data is broadcast live, the net cast flow data is sent into the edge node server；When not storing, regional center service
Device obtains the net cast flow data to source node server, and the net cast flow data is sent the fringe node service
Device.
Preferably, the edge node server includes third judging unit, for judging the caching in the first buffer area
Whether the first pre- reproduction time of data is more than the first maximum delay threshold value；First pumps unit, is broadcast in advance for working as described first
When putting the time and being more than the first maximum delay threshold value, then the net cast flow data in first buffer area is pumped；The region
Central server includes the 4th judging unit, for whether judging the pre- reproduction time of data cached second in the second buffer area
More than the second maximum delay threshold value；Second pumps unit, for being more than the second maximum delay threshold when the described second pre- reproduction time
When value, then the net cast flow data in second buffer area is pumped.
The beneficial technical effect of the present invention lies in：The live streaming based on unlimited service node accelerates network interim card optimization method
By the way that edge node server is distributed to client, whether detection client there is interim card, after interim card occurs in client, is
The client for interim card occur replaces edge service node.Pass through the dynamic optimization of link between client and edge node server
Adjustment promotes network service quality, to optimize Caton phenomenon, together to ensure that client can use the shake of network link
The usage experience of Shi Tisheng clients.
Description of the drawings
Fig. 1 is the flow that the live streaming based on unlimited service node that preferred embodiment provides accelerates network interim card optimization method
Figure.
Fig. 2 is the method flow diagram executed before step 101 in Fig. 1.
Fig. 3 is the method flow diagram for including in step 204 in Fig. 2.
Fig. 4 is the structure that the live streaming based on unlimited service node that preferred embodiment provides accelerates network interim card optimization system
Block diagram.
Fig. 5 is the structure chart of edge node server in Fig. 4.
Fig. 6 is the structure chart of regional center server in Fig. 4.
Fig. 7 is the structure chart of source node server in Fig. 4.
Specific implementation mode
To make those skilled in the art that the purpose, technical scheme and advantage of invention be more clearly understood, below
Invention is further elaborated in conjunction with the accompanying drawings and embodiments.
Shown in referring to Fig.1, the live streaming based on unlimited service node accelerates the flow chart of network interim card optimization method 10.The party
Source node server that method 10 is used to interact, several regional center servers, several edge node servers and several
Between client.This method 10 includes the following steps：
101：Whether detection client there is interim card.With reference to shown in Fig. 2, whether detection client occurs also wrapping before interim card
Method flow 20 is included, specifically：
201：From several edge node servers, one edge node server of distribution is to client；
202：Receive the net cast flow data request of client；
203：Judge whether to store the net cast flow data of client request in edge node server；
204：When storage has the net cast flow data in edge node server, which is sent
The client；When not storing, edge node server obtains net cast flow data to regional center server, and this is regarded
Frequency live streaming flow data sends the client.When detecting that interim card occurs in client, detection and the client common edge node
Whether other all clients of server there is interim card.By the side of other clients of detection common edge node server
It is that the network of client goes wrong or common edge node server goes wrong that formula, which can be distinguished,.The network of client in this way
Then client can self check processing to problem.According to this when interim card occurs in client, reduce some mistakes blindly handled
Journey, while carrying out efficient processing convenient for finding problem.
102：When interim card occurs in client, judgement goes out with all clients of client common edge node server
Whether the ratio of existing Caton phenomenon is more than the first preset ratio.In the present embodiment, real-time statistics are all shares an edge section
The quantity of all clients of point server detects and occurs the client terminal quantity of Caton phenomenon in all clients, calculates and occurs
Accounting of the client terminal quantity of Caton phenomenon in all clients, to obtain the first preset ratio.Certainly in the present embodiment,
First preset ratio can be counted according to real data and be got, and can also be configured according to specific application environment.
103：When more than the first preset ratio, edge node server is replaced to there is the client of Caton phenomenon.
In the present embodiment, when the client terminal quantity for Caton phenomenon occur is more than the first preset ratio, to there is the client of Caton phenomenon
Replace edge node server.In the present embodiment, the principle for replacing edge node server is to select adjacent service quality most
Excellent edge node server, so that client obtains requested net cast fluxion from adjacent edge node server
According to, to solve the problems, such as client network interim card, achieve the effect that interim card optimize.In the present embodiment, the measurement of service quality
Standard is exactly interim card.Due in this method 10, being provided with a large amount of edge node server, therefore it can realize quick side
The replacement of edge node server realizes that the dynamic optimization of client and edge node server adjusts, ensures that client can fit
The shake for answering network link promotes the purpose of user experience to reach optimization interim card.
With reference to shown in Fig. 3, in the present embodiment, edge node server is obtained to regional center server in step 204
Further include 301 when net cast flow data：Whether detection edge node server there is interim card.In the present embodiment, side is detected
Whether edge node server occurs further including distributing a regional center service from several regional center servers before interim card
Device is to edge node server；Receive the net cast flow data request of edge node server；Judge regional center server
In whether store edge node server request net cast flow data；When storage has video straight in regional center server
When broadcasting flow data, net cast flow data is sent into the edge node server；When not storing, regional center server is to source
Node server obtains net cast flow data, and the net cast flow data is sent the edge node server.In addition, inspection
Survey edge node server and whether occur further include after interim card when detecting that interim card occurs in edge node server, detection with
Whether other all edge node servers of the edge node server common area central server there is interim card.By inspection
Survey common area central server other edge node servers mode can distinguish be edge node server network
It goes wrong or common area central server goes wrong.The fringe node service if the network problem of edge node server
Device can self check processing.According to this when interim card occurs in edge node server, reduce some processes blindly handled,
Simultaneously efficient processing is carried out convenient for finding problem.
302：When interim card occurs in edge node server, judge and edge node server common area central server
All edge node servers in whether there is the ratio of Caton phenomenon more than the second preset ratio.In the present embodiment, real
The quantity of all edge node servers for sharing a regional center server of Shi Tongji detects all fringe node clothes
There is the edge node server quantity of Caton phenomenon in business device, calculates the edge node server quantity for Caton phenomenon occur and exist
Accounting in all edge node servers, to obtain the second preset ratio.Certainly in the present embodiment, second preset ratio
It can be counted and be got according to real data, can also be configured according to specific application environment.
303：When more than the second preset ratio, regional center clothes are replaced to there is the edge node server of Caton phenomenon
Business device.In the present embodiment, when the edge node server quantity for Caton phenomenon occur is more than the second preset ratio, for card
The edge node server for phenomenon of pausing replaces regional center server.In the present embodiment, Edge Server keep with it is neighbouring
Regional center server connecting test, and the principle for replacing regional center server is to select the region of adjacent service optimal quality
Central server, so that edge node server obtains requested net cast fluxion from adjacent regional center server
According to, to solve the problems, such as edge node server network interim card, achieve the effect that interim card optimize.In the present embodiment, edge section
Point server and regional center server can be converted, i.e., when edge node server can by promoted service quality,
It is converted into regional center server.It equally, can be with translation bit fringe node service after regional center server service quality declines
Device.By the conversion of this edge node server and regional center server, to form optimal network link, to carry out
Rational layout, to optimize interim card.Due in this method 10, being provided with a large amount of regional center server, therefore can
It realizes the replacement for the edge node server read soon, realizes the dynamic optimization tune of edge node server and regional center server
It is whole, to promote the service quality of whole network.
Specifically, in the present embodiment, using such as above-mentioned similar between source node server and regional center server
Whether optimization method, i.e. detection zone central server there is interim card；When there is interim card in regional center server, judgement and area
Occur in all areas central server of domain central server common source node server Caton phenomenon ratio whether be more than
Third preset ratio；When more than third preset ratio, the source closed on is replaced to there is the regional center server of Caton phenomenon
Node server, so that regional center server obtains net cast flow data from adjacent source node server, to solve
Certainly regional center server network interim card problem achievees the effect that interim card optimizes.This method 10 is that client sets up source section simultaneously
Point server, regional center server and edge node server Three Tiered Network Architecture, and optimize in source node server, region
Link dynamic between central server, edge node server and client adjusts, and ensures that client can adapt to network link
Shake, to improve network service quality.
Specifically, in the present embodiment, edge node server includes the first buffer area, which also executes：
Judge the pre- reproduction time of data cached first in the first buffer area whether more than the first maximum delay threshold value；It is broadcast in advance when first
When putting the time and being more than the first maximum delay threshold value, then net cast flow data is pumped.Regional center server includes the second caching
Area, second buffer area also execute：Judge the pre- reproduction time of data cached second in the second buffer area whether more than second
Maximum delay threshold value；When the second pre- reproduction time is more than the second maximum delay threshold value, then net cast flow data is pumped.If
When the full-mesh network shake of region, it still will appear lasting Caton phenomenon, taken by edge node server and regional center
Be engaged in device the first buffer area and the second buffer area carry out it is data cached compared with net cast flow data, and according to comparison result into
The corresponding treatment measures of row.Such as when the first pre- reproduction time is more than the first maximum delay threshold value, then it represents that taken in fringe node
It is engaged in data cached excessive in device, adjusts the whole network Caton phenomenon using net cast flow data is pumped at this time.Similarly, as when the
When two pre- reproduction times are more than the second maximum delay threshold value, then it represents that it is data cached excessive in central server in the zone, this
Shi Caiyong pumps net cast flow data to adjust the whole network Caton phenomenon.In the present embodiment, the first pre- reproduction time, second pre-
Reproduction time, the first maximum delay threshold value and the second maximum delay threshold value should be configured according to specifically used environment, with
It is adapted to different network resource requirements.
With reference to shown in Fig. 4, the live streaming based on unlimited service node that preferred embodiment provides accelerates network interim card optimization system
The structure diagram of system.The system 40 include source node server 41, regional center server 42, edge node server 43 and
Several subscription clients (being not marked in figure).Source node server 41 is for receiving and distributing net cast flow data, in region
Central server 42 is interconnected with source node server 41 to obtain net cast flow data, and edge node server 43 is connected to
Between regional center server 42 and client, and for the caching of net cast flow data.
Referring to Figure 5, the structure diagram of edge node server.Edge node server 43 further includes the first detection list
Member 431, for detecting whether client interim card occurs；First comparing unit 432, for when interim card occurs in client, judging
It is whether default more than first with the ratio that occurs Caton phenomenon in all clients of client common edge node server 43
Ratio；First replaces unit 433, for when more than the first preset ratio, edge to be replaced to there is the client of Caton phenomenon
Node server 43.The system 40 replaces edge after detecting that interim card occurs in client, to there is the client of Caton phenomenon
Node server 43 improves user to realize that the dynamic link between client and edge node server 43 is optimized and revised
Usage experience.
Wherein, in the present embodiment, first unit 433 is replaced, be used for when more than the first preset ratio, to there is interim card
The client of phenomenon replaces edge node server 43.In the present embodiment, it is pre- that first is preset in edge node server 43
If ratio, when occur in all clients for sharing an edge node server 43 client terminal quantity of Caton phenomenon with it is all
When the accounting of client terminal quantity is more than the first preset ratio, edge node server is replaced to there is the client of Caton phenomenon
43.In the present embodiment, the principle for replacing edge node server 43 is to select the fringe node clothes of adjacent service optimal quality
Business device 43, so that client obtains requested net cast flow data from adjacent edge node server 43, to solve
Certainly client network interim card problem achievees the effect that interim card optimizes.In the present embodiment, the measurement standard of service quality is exactly card
.Due in the system 40, being provided with a large amount of edge node server 43, therefore it can realize the fringe node clothes read soon
The replacement of business device 43 realizes that client and the dynamic optimization of edge node server 43 adjust, to reach optimization interim card, promotes use
The purpose of family usage experience.
Edge node server 43 further includes the first allocation unit 434, for from several edge node servers 43, dividing
Client is given with an edge node server 43；First receiving unit 435, the net cast flow data for receiving client
Request；First judging unit 436, the net cast for judging whether to store client request in edge node server 43
Flow data；First transmission unit 437, for when in edge node server 43 storage have net cast flow data when, by video
Live streaming flow data sends the client；When not storing, edge node server 43 is straight to regional center server acquisition video
Flow data is broadcast, and the net cast flow data is sent into the client.In the present embodiment, edge node server includes first
Buffer area, for storing video data；Third judging unit 438, for judging data cached first in the first buffer area
Whether pre- reproduction time is more than the first maximum delay threshold value；First pumps unit 439, for being more than the when the first pre- reproduction time
When one maximum delay threshold value, then net cast flow data is pumped.
With reference to shown in Fig. 6, the structure diagram of regional center server.In the present embodiment, regional center server 42 is gone back
Including second detection unit 421, for detecting whether edge node server 43 interim card occurs；Second comparing unit 422, is used for
When interim card occurs in edge node server 43, judge all with 43 common area central server 42 of edge node server
Whether occurs the ratio of Caton phenomenon in edge node server 43 more than the second preset ratio；Second replaces unit 423, is used for
When more than the second preset ratio, regional center server 42 is replaced to there is the edge node server 43 of Caton phenomenon.Its
In, second detection unit 421 is additionally operable to when detecting that interim card occurs in edge node server 43, and detection takes with the fringe node
Whether other all edge node servers 43 of business 43 common area central server 42 of device there is interim card.In the present embodiment,
The principle for replacing regional center server 42 is to select the regional center server 42 of adjacent service optimal quality, for edge section
Point server 43 obtains requested net cast flow data from adjacent regional center server 42, to solve edge section
43 network interim card problem of point server achievees the effect that interim card optimizes.In the present embodiment, the measurement standard of service quality is exactly
Interim card.Due in the system 40, being provided with a large amount of regional center server 42, therefore it can realize the regional center read soon
The replacement of server 42 realizes that edge node server 43 and the dynamic optimization of regional center server 42 adjust, to promote net
Network service quality.
Regional center server 42 further includes the second allocation unit 424, for from several regional center servers, distributing
One regional center server 42 gives edge node server 43；Second receiving unit 425, for receiving edge node server
43 net cast flow data request；Second judgment unit 426, for judging whether stored side in regional center server 42
The net cast flow data that edge node server 43 is asked；Second transmission unit 427, is deposited for working as in regional center server 42
When being placed with net cast flow data, net cast flow data is sent into the edge node server 43；When not storing, in region
Central server 42 obtains net cast flow data to source node server 41, and the net cast flow data is sent the edge section
Point server 43.
Regional center server 42 includes the second buffer area, for storing video data；4th judging unit 428, is used for
Judge the pre- reproduction time of data cached second in the second buffer area whether more than the second maximum delay threshold value；Second pumps list
Member 429, for when the second pre- reproduction time is more than the second maximum delay threshold value, then pumping net cast flow data.
With reference to shown in Fig. 7, the structure diagram of source node server.Source node server 41 includes third detection unit 411,
Whether there is interim card for detection zone central server 42；Third comparing unit 432 goes out for working as regional center server 42
When existing interim card, judgement occurs with all areas central server 42 of 42 common source node server 41 of regional center server
Whether the ratio of Caton phenomenon is more than third preset ratio；Third replaces unit 433, is used for when more than third preset ratio,
Source node server 41 is replaced to there is the regional center server 42 of Caton phenomenon.The system 40 is detecting regional center clothes
After interim card occurs in business device 42, source node server 41 is replaced to there is the regional center server 42 of Caton phenomenon, to realize
Dynamic link between regional center server 42 and source node server 41 is optimized and revised, and the usage experience of user is improved.
The live streaming based on unlimited service node accelerates network interim card optimization system 40 to set up source node service for client
43 Three Tiered Network Architecture of device 41, regional center server 42 and edge node server, and optimize source node server 41, region
Link dynamic between central server 42, edge node server 43 and client adjusts, and ensures that client can adapt to net
The shake of network link, to improve network service quality.
The foregoing is merely the preferred embodiments of invention, rather than do limitation in any form to invention.The skill of this field
Art personnel can impose various equivalent changes and improvement on the basis of the above embodiments, all to be done within the scope of the claims
Equivalent variations or modification should all be fallen within the protection domain of invention.
Claims (10)
1. the live streaming based on unlimited service node accelerates network interim card optimization method, the source node that the method is used to interact
Between server, several regional center servers, several edge node servers and several clients, which is characterized in that institute
The method of stating includes the following steps：
Whether detection client there is interim card；
When interim card occurs in client, judge that occurring interim card in all clients with client common edge node server shows
Whether the ratio of elephant is more than the first preset ratio；
When more than the first preset ratio, edge node server is replaced to there is the client of Caton phenomenon.
2. the method as described in claim 1, which is characterized in that whether the detection client, which interim card occurs, further includes before：
From several edge node servers, one edge node server of distribution is to client；
Receive the net cast flow data request of client；
Judge whether to store the net cast flow data of client request in edge node server；
When storage has the net cast flow data in edge node server, the net cast flow data is sent into the visitor
Family end；
When not storing, edge node server obtains the net cast flow data to regional center server, and this is regarded
Frequency live streaming flow data sends the client.
3. method as claimed in claim 2, which is characterized in that the edge node server is obtained to regional center server
Further include when the net cast flow data：
Whether detection edge node server there is interim card；
When interim card occurs in edge node server, all sides with edge node server common area central server are judged
Whether occurs the ratio of Caton phenomenon in edge node server more than the second preset ratio；
When more than the second preset ratio, regional center server is replaced to there is the edge node server of Caton phenomenon.
4. method as claimed in claim 3, which is characterized in that whether the detection edge node server occurs before interim card
Further include：
From several regional center servers, one regional center server of distribution is to edge node server；
Receive the net cast flow data request of edge node server；
Judge the net cast flow data that edge node server is asked whether is stored in regional center server；
When storage has the net cast flow data in regional center server, the net cast flow data is sent into the side
Edge node server；
When not storing, regional center server obtains the net cast flow data to source node server, and by the video
Live streaming flow data sends the edge node server.
5. the method as described in claim 1, which is characterized in that the edge node server includes the first buffer area, described
First buffer area also executes step：
Judge the pre- reproduction time of data cached first in the first buffer area whether more than the first maximum delay threshold value；When described
When first pre- reproduction time is more than the first maximum delay threshold value, then the net cast flow data in first buffer area is pumped；
The regional center server includes the second buffer area, and second buffer area also executes step：
Judge the pre- reproduction time of data cached second in the second buffer area whether more than the second maximum delay threshold value；When described
When second pre- reproduction time is more than the second maximum delay threshold value, then the net cast flow data in second buffer area is pumped.
6. the live streaming based on unlimited service node accelerates network interim card optimization system, which is characterized in that the system comprises source sections
Point server, several regional center servers, several edge node servers and several clients, the source node server
For receiving and distributing net cast flow data, regional center server is interconnected with the source node server and is regarded with obtaining
Frequency live streaming flow data, edge node server are connected between the regional center server and the client, and for regarding
The caching of flow data is broadcast live in frequency；The edge node server further includes：
First detection unit, for detecting whether client interim card occurs；
First comparing unit, it is all with client common edge node server for when interim card occurs in client, judging
Whether occurs the ratio of Caton phenomenon in client more than the first preset ratio；
First replaces unit, for when more than the first preset ratio, fringe node to be replaced to there is the client of Caton phenomenon
Server.
7. system as claimed in claim 6, which is characterized in that the edge node server further includes：
First allocation unit, for from several edge node servers, one edge node server of distribution to be to client；
First receiving unit, the net cast flow data for receiving client are asked；
First judging unit, the net cast fluxion for judging whether to store client request in edge node server
According to；
First transmission unit, for when in edge node server storage have the net cast flow data when, by the video
Live streaming flow data sends the client；When not storing, edge node server obtains the video to regional center server
Flow data is broadcast live, and the net cast flow data is sent into the client.
8. system as claimed in claim 7, which is characterized in that the regional center server further includes：
Second detection unit, for detecting whether edge node server interim card occurs；
Second comparing unit, for when interim card occurs in edge node server, judging and edge node server common area
Whether occurs the ratio of Caton phenomenon in all edge node servers of central server more than the second preset ratio；
Second replaces unit, for when more than the second preset ratio, being replaced to there is the edge node server of Caton phenomenon
Regional center server.
9. system as claimed in claim 8, which is characterized in that the regional center server further includes：
Second allocation unit, for from several regional center servers, one regional center server of distribution to be to fringe node
Server；
Second receiving unit, the net cast flow data for receiving edge node server are asked；
Second judgment unit, for judging that the video for whether storing edge node server request in regional center server is straight
Broadcast flow data；
Second transmission unit, for when in regional center server storage have the net cast flow data when, by the video
Live streaming flow data sends the edge node server；When not storing, regional center server obtains institute to source node server
Net cast flow data is stated, and the net cast flow data is sent into the edge node server.
10. system as claimed in claim 6, which is characterized in that the edge node server includes third judging unit, is used
In judging the pre- reproduction time of data cached first in the first buffer area whether more than the first maximum delay threshold value；First pumps
Unit, for when the described first pre- reproduction time is more than the first maximum delay threshold value, then pumping in first buffer area
Net cast flow data；
The regional center server includes the 4th judging unit, for judging that data cached second in the second buffer area is pre-
Whether reproduction time is more than the second maximum delay threshold value；Second pumps unit, for being more than the when the described second pre- reproduction time
When two maximum delay threshold values, then the net cast flow data in second buffer area is pumped.
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