CN103763018B - Data receiving method for user terminal of satellite - Google Patents
Data receiving method for user terminal of satellite Download PDFInfo
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- CN103763018B CN103763018B CN201410022632.8A CN201410022632A CN103763018B CN 103763018 B CN103763018 B CN 103763018B CN 201410022632 A CN201410022632 A CN 201410022632A CN 103763018 B CN103763018 B CN 103763018B
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Abstract
The invention discloses a data receiving method for a user terminal of a satellite. The method includes the steps that firstly, a ground server sends file data needing to be pushed to the satellite and records primary file information; secondly, the satellite receives the file data and broadcasts the file data to the ground; thirdly, a ground monitoring terminal receives the file data, records received file information, is connected with the ground server and sends the received file information to the ground server; fourthly, the ground server obtains file information which is missed alone by comparing the primary file information with the received file information; fifthly, all file information which is missed alone is compared, file information which is missed together partially is obtained, and files which are missed together partially are determined according to file information which is missed alone; sixthly, the ground monitoring terminal which receives the files which are missed together partially sends the files to the other ground monitoring terminals which do not receive the files which are missed together partially.
Description
Technical field
The present invention relates to communication technology of satellite, the data receiver method of more particularly to a kind of satellite user terminal.
Background technology
Satellite digital distribution be a kind of new publication and distribution pattern, be using satellite network to have reception and ability to play
User terminal directly deliver the digitizeds such as phonotape and videotape, electron reading (newpapers and periodicals, magazine, books), game, software, industry Zone Information produce
The distribution service of product, and carry out copyright authentication and management when user uses.
Existing satellite digital distribution process is, by the digital publication of legal publication, after encryption, logical first
Cross ground-based server and send data to satellite, then satellite pushes data into user terminal in a broadcast manner, through recognizing
After card deciphering, user passes through the equipment browse such as computer, telescreen, portable terminal device and applies.Satellite digital distribution has covering model
Enclose the features such as wide, spread speed is fast, content quality is high, copyright protection is tight, receive very big concern in the industry from after release, open
The brand-new visual field in digital publishing field.
When using above-mentioned data-pushing mode, the situation that there is file data loss is it may occur however that by ground service
Device send to satellite up process it is also possible to occur in the descending process being pushed to user terminal by satellite.Prior art handss
Section, when solving loss of data, using the method for time backup or wave band backup, but favorably uses the time long, bandwidth occupancy is high
Shortcoming.It is thus desirable to proposing a kind of data receiver method of satellite user terminal, solve number of files in satellite digital distribution process
According to the problem lost.
The prior art relevant with the application is referring also to United States Patent (USP) US6088571.
Content of the invention
It is an object of the invention to provide a kind of data receiver method of satellite user terminal, solve satellite digital distribution process
The problem that middle file data is lost.
To achieve these goals, the present invention provides a kind of data receiver method of satellite user terminal, including：
Step one, ground-based server sends the file data needing to push, described ground-based server record simultaneously to satellite
The original file information of described file data；
Step 2, file data described in described satellite reception, and earthward broadcast described number of files by way of broadcast
According to；
Step 3, ground monitoring terminal receives described file data, file described in described ground monitoring terminal record simultaneously
The reception fileinfo of data, described ground monitoring terminal through internet is connected with described ground-based server, by described reception
Fileinfo sends to described ground-based server；
Step 4, described ground-based server passes through relatively described original file information and described reception fileinfo, obtains
Described ground monitoring terminal fails the independent disappearance fileinfo receiving；
Step 5, compares the described independent disappearance fileinfo of all ground monitoring terminals, knows less than predetermined threshold ratio
The local that the ground monitoring terminal of example is not received by lacks fileinfo jointly, jointly lacks fileinfo according to described local
Determine that local is common and lack file；
Step 6, by receive described local jointly lack file ground monitoring terminal through internet send described office
Portion lacks file jointly to the ground monitoring terminal being not received by described local and jointly lacking file.
Preferably, in above-mentioned data receiver method, described threshold percentage is 10%-30%.
Preferably, in above-mentioned data receiver method, described threshold percentage is 15%.
Preferably, in above-mentioned data receiver method, described ground monitoring terminal is distributed according to province domain, each geographical model saving
At least there is in enclosing a described ground monitoring terminal.
Preferably, in above-mentioned data receiver method, described ground monitoring terminal is distributed according to county domain, the geographical model in each county
At least there is in enclosing a described ground monitoring terminal.
Preferably, in above-mentioned data receiver method, using described ground monitoring terminal as place geographic range data source,
Respond the data filling request of the general subscriber terminal in described geographic range.
Preferably, in above-mentioned data receiver method, described file data is multimedia video file.
At least there is following technique effect in the present invention：
1) when prior art solves file data loss, the method generally adopting wave band backup, due to ground-based server no
Which missing documents is method judge, needs again to be uploaded to all files satellite, and occupied bandwidth is very high.Pass through in the present invention to compare
The original file information accepting fileinfo and ground-based server transmission file of ground monitoring terminal is it is possible to obtain each ground
Face monitoring terminal fails the independent disappearance fileinfo receiving, then by contrasting the independent disappearance file of all ground monitoring terminals
Information is so that it may know that the local being not received by less than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly.
Fileinfo is jointly lacked by local and can find local common disappearance file.Order receives the common ground prison lacking file in local
Survey terminal through internet and be connected with the ground monitoring terminal not receiving local common disappearance file, send local and jointly lack
Lose file to not receiving the common ground monitoring terminal lacking file in local, just solve asking of fraction of subscribers missing documents
Topic, and avoid all files are uploaded again the too high phenomenon of occupied bandwidth.
2) in the present invention, given threshold ratio is 10%-30%, and preferential given threshold ratio is 15%, and expression is less than
15% ground monitoring terminal is not received by local common disappearance file, and the ground monitoring terminal more than 85% have received office
Portion lacks file jointly, now sends local by the ground monitoring terminal through internet receiving local common disappearance file again
Common disappearance file is to being not received by the common ground monitoring terminal lacking file in local, it is possible to resolve fraction of subscribers file
Disappearance problem.
3) ground monitoring terminal is used for monitoring terrestrial user file reception situation, arrange in the geographic range in each county to
A few ground monitoring terminal, arranges at least one ground monitoring terminal in each geographic range saving, connects when there being user file
When receiving imperfect, in time can obtain complete file data it is ensured that user to the ground monitoring terminal feedback in County Level Regional
Receive file data integrity with ageing.
Brief description
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is user terminal data method of reseptance flow chart.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with accompanying drawing to concrete reality
Apply example to be described in detail.
As shown in figure 1, the embodiment of the present invention provides a kind of data receiver method of satellite user terminal, including：
Step 101, ground-based server sends the file data needing to push, ground server record file simultaneously to satellite
The original file information of data；
Step 102, satellite reception file data, and earthward broadcasting file data by way of broadcast；
Step 103, ground monitoring terminal receives file data, simultaneously the reception literary composition of ground monitoring terminal log file data
Part information, ground monitoring terminal through internet is connected with ground-based server, will receive fileinfo and send to ground-based server；
Step 104, ground-based server, by comparing original file information and receiving fileinfo, obtains ground monitoring terminal
Fail the independent disappearance fileinfo receiving；
Step 105, compares the independent disappearance fileinfo of all ground monitoring terminals, knows less than predetermined threshold ratio
The local that ground monitoring terminal is not received by lacks fileinfo jointly, determines local according to the common fileinfo that lacks in local
Common disappearance file；
Step 106, sends local by the ground monitoring terminal through internet receiving local common disappearance file common
Disappearance file is to the ground monitoring terminal being not received by local common disappearance file.
When prior art solves file data loss, the method generally adopting wave band backup, because ground-based server cannot
Judged which missing documents, needs again to be uploaded to all files satellite, occupied bandwidth is very high.Pass through comparatively in the present invention
Accept fileinfo and the ground-based server of face monitoring terminal send the original file information of file it is possible to obtain each ground
Monitoring terminal fails the independent disappearance fileinfo receiving, then by contrasting the independent disappearance file letter of all ground monitoring terminals
Breath is so that it may know that the local being not received by less than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly.By
Local common disappearance fileinfo can find local and jointly lack file.
The common file that lacks in local is the file that only a minority is not received by, and Producing reason is that file data becomes
Work(is uploaded to satellite, and satellite has a few peoples not to be properly received in broadcasting process.Therefore order receives local common disappearance literary composition
The ground monitoring terminal through internet of part is connected with not receiving the common ground monitoring terminal lacking file in local, sends
Local is common to lack file, with regard to solving the problems, such as fraction of subscribers missing documents, and avoids and again uploads all files
The too high phenomenon of occupied bandwidth.
In another embodiment of the present invention, given threshold ratio is 10%-30%, and preferential given threshold ratio is
15%, represent that the ground monitoring terminal less than 15% is not received by local common disappearance file, the ground monitoring more than 85%
Terminal have received locally common disappearance file, is now sent out by the ground monitoring terminal receiving local common disappearance file again
Send the common file that lacks in local to being not received by the common ground monitoring terminal lacking file in local, solve fraction of subscribers
Missing documents problem；If by threshold percentage arrange too high, receive the common user lacking file in local and tail off, may
Enough files cannot be sent to and not receive the common user lacking file in local.
In another embodiment of the present invention, ground monitoring terminal is used for monitoring terrestrial user file reception situation,
Arrange in the geographic range in each county and at least one ground is set at least one ground monitoring terminal, each geographic range saving
Monitoring terminal, ground monitoring terminal as the data source in region, when there being user's file reception imperfect, can be at county level
Ground monitoring terminal feedback in region, is easy to obtain complete file data in time it is ensured that user receives file data
Integrity with ageing.
From the foregoing, it will be observed that the embodiment of the present invention has the advantage that：
1) when prior art solves file data loss, the method generally adopting wave band backup, due to ground-based server no
Which missing documents is method judge, needs again to be uploaded to all files satellite, and occupied bandwidth is very high.Pass through in the present invention to compare
The original file information accepting fileinfo and ground-based server transmission file of ground monitoring terminal is it is possible to obtain each ground
Face monitoring terminal fails the independent disappearance fileinfo receiving, then by contrasting the independent disappearance file of all ground monitoring terminals
Information is so that it may know that the local being not received by less than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly.
Fileinfo is jointly lacked by local and can find local common disappearance file.Order receives the common ground prison lacking file in local
Survey terminal through internet and be connected with the ground monitoring terminal not receiving local common disappearance file, send local and jointly lack
Lose file to not receiving the common ground monitoring terminal lacking file in local, just solve asking of fraction of subscribers missing documents
Topic, and avoid all files are uploaded again the too high phenomenon of occupied bandwidth.
2) in the present invention, given threshold ratio is 10%-30%, and preferential given threshold ratio is 15%, and expression is less than
15% ground monitoring terminal is not received by local common disappearance file, and the ground monitoring terminal more than 85% have received office
Portion lacks file jointly, now sends local by the ground monitoring terminal through internet receiving local common disappearance file again
Common disappearance file is to being not received by the common ground monitoring terminal lacking file in local, it is possible to resolve fraction of subscribers file
Disappearance problem.
3) ground monitoring terminal is used for monitoring terrestrial user file reception situation, arrange in the geographic range in each county to
A few ground monitoring terminal, arranges at least one ground monitoring terminal in each geographic range saving, connects when there being user file
When receiving imperfect, in time can obtain complete file data it is ensured that user to the ground monitoring terminal feedback in County Level Regional
Receive file data integrity with ageing.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe the multiple of the present invention and show
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that and recognize
It is set to and cover other variations or modifications all these.
Claims (7)
1. a kind of data receiver method of satellite user terminal, including：
Step one, ground-based server sends, to satellite, the file data needing to push, simultaneously described in described ground-based server record
The original file information of file data；
Step 2, file data described in described satellite reception, and earthward broadcast described file data by way of broadcast；
Step 3, ground monitoring terminal receives described file data, file data described in described ground monitoring terminal record simultaneously
Reception fileinfo, described ground monitoring terminal through internet is connected with described ground-based server, by described reception file
Information sends to described ground-based server；
Step 4, described ground-based server passes through relatively described original file information and described reception fileinfo, obtains described
Ground monitoring terminal fails the independent disappearance fileinfo receiving；
It is characterized in that, described data receiver method also includes：
Step 5, compares the described independent disappearance fileinfo of all ground monitoring terminals, knows less than predetermined threshold ratio
The local that ground monitoring terminal is not received by lacks fileinfo jointly, jointly lacks fileinfo according to described local and determines
Local is common to lack file；
Step 6, sends described local altogether by the ground monitoring terminal through internet receiving described local and jointly lacking file
Same disappearance file jointly lacks the ground monitoring terminal of file to being not received by described local.
2. data receiver method according to claim 1 is it is characterised in that described threshold percentage is 10%-30%.
3. data receiver method according to claim 2 is it is characterised in that described threshold percentage is 15%.
4. the data receiver method according to any one in claim 1-3 is it is characterised in that described ground monitoring terminal
According in the distribution of province domain, each geographic range saving, at least there is a described ground monitoring terminal.
5. data receiver method according to claim 4 is it is characterised in that described ground monitoring terminal is divided according to county domain
Cloth, at least has a described ground monitoring terminal in the geographic range in each county.
6. data receiver method according to claim 5 is it is characterised in that using described ground monitoring terminal as location
The data source of reason scope, responds the data filling request of the general subscriber terminal in described geographic range.
7. data receiver method according to claim 1 is it is characterised in that described file data is multimedia video literary composition
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022632.8A CN103763018B (en) | 2014-01-17 | 2014-01-17 | Data receiving method for user terminal of satellite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022632.8A CN103763018B (en) | 2014-01-17 | 2014-01-17 | Data receiving method for user terminal of satellite |
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| CN103763018A CN103763018A (en) | 2014-04-30 |
| CN103763018B true CN103763018B (en) | 2017-02-08 |
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| CN201410022632.8A Expired - Fee Related CN103763018B (en) | 2014-01-17 | 2014-01-17 | Data receiving method for user terminal of satellite |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103763017B (en) * | 2014-01-17 | 2017-02-22 | 航天数字传媒有限公司 | Data receiving method for user terminal of satellite |
Citations (6)
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|---|---|---|---|---|
| US6088571A (en) * | 1998-01-30 | 2000-07-11 | Motorola, Inc. | Method and apparatus for multi-constellation satellite broadcast with error correction |
| CN1792056A (en) * | 2003-05-16 | 2006-06-21 | 高通股份有限公司 | Reliable reception of broadcast/multicast content |
| CN102118692A (en) * | 2009-12-30 | 2011-07-06 | 上海无线通信研究中心 | Information retransmitting method for improving multicast efficiency of cellular system |
| JP2011146942A (en) * | 2010-01-15 | 2011-07-28 | Kodaira Associates Kk | Satellite receiving apparatus and communication method |
| CN103236880A (en) * | 2013-04-18 | 2013-08-07 | 航天数字传媒有限公司 | Satellite digital distribution system and satellite digital distribution method |
| CN203225755U (en) * | 2013-04-18 | 2013-10-02 | 航天数字传媒有限公司 | Satellite digital distribution system |
-
2014
- 2014-01-17 CN CN201410022632.8A patent/CN103763018B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| US6088571A (en) * | 1998-01-30 | 2000-07-11 | Motorola, Inc. | Method and apparatus for multi-constellation satellite broadcast with error correction |
| CN1792056A (en) * | 2003-05-16 | 2006-06-21 | 高通股份有限公司 | Reliable reception of broadcast/multicast content |
| CN102118692A (en) * | 2009-12-30 | 2011-07-06 | 上海无线通信研究中心 | Information retransmitting method for improving multicast efficiency of cellular system |
| JP2011146942A (en) * | 2010-01-15 | 2011-07-28 | Kodaira Associates Kk | Satellite receiving apparatus and communication method |
| CN103236880A (en) * | 2013-04-18 | 2013-08-07 | 航天数字传媒有限公司 | Satellite digital distribution system and satellite digital distribution method |
| CN203225755U (en) * | 2013-04-18 | 2013-10-02 | 航天数字传媒有限公司 | Satellite digital distribution system |
Non-Patent Citations (1)
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| 王军等.交换式以太网中连续实时流媒体的可靠组播.《软件学报》.2004,(第02期), * |
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Granted publication date: 20170208 Termination date: 20220117 |