CN103763018A - Data receiving method for user terminal of satellite - Google Patents
Data receiving method for user terminal of satellite Download PDFInfo
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- CN103763018A CN103763018A CN201410022632.8A CN201410022632A CN103763018A CN 103763018 A CN103763018 A CN 103763018A CN 201410022632 A CN201410022632 A CN 201410022632A CN 103763018 A CN103763018 A CN 103763018A
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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, particularly relate to a kind of data receive method of satellite user terminal.
Background technology
Satellite digital distribution is a kind of new publication and distribution pattern, be to utilize satellite network directly to deliver the distribution service of the digital products such as phonotape and videotape, electron reading (newpapers and periodicals, magazine, books), game, software, industry Zone Information to the user terminal with reception and ability to play, and when user uses, carry out copyright authentication and management.
Existing satellite digital distribution process is, by the digital publication of legal publication, after encryption, first by ground-based server, send data to satellite, then satellite pushes data into user terminal in the mode of broadcast, after authentication deciphering, user is by equipment browse application such as computer, video screen, portable terminal devices.Satellite digital distribution has the features such as wide coverage, propagation velocity is fast, content quality is high, copyright protection is tight, after certainly releasing, receives very big concern in the industry, has opened the brand-new visual field in digital publishing field.
When using above-mentioned data-pushing mode, the situation that exists file data to lose, may occur in the up process that is sent to satellite by ground-based server, also may occur in the descending process that is pushed to user terminal by satellite.Prior art means are solving during loss of data, the method for the backup of employing time or wave band backup, but favourable long with the time, the shortcoming that bandwidth occupancy is high.Therefore need to propose a kind of data receive method of satellite user terminal, solve the problem that in satellite digital distribution process, file data is lost.
Summary of the invention
The object of this invention is to provide a kind of data receive method of satellite user terminal, solve the problem that in satellite digital distribution process, file data is lost.
To achieve these goals, the invention provides a kind of data receive method of satellite user terminal, comprising:
Step 1, ground-based server sends the file data that needs propelling movement to satellite, and described ground-based server records the original file information of described file data simultaneously;
Step 2, file data described in described satellite reception, and broadcast earthward described file data by the mode of broadcast;
Step 3, ground monitoring terminal receives described file data, described ground monitoring terminal records the reception fileinfo of described file data simultaneously, and described ground monitoring terminal through internet is connected with described ground-based server, and described reception fileinfo is sent to described ground-based server;
Step 4, described ground-based server is by more described original file information and described reception fileinfo, obtains described ground monitoring terminal and fails the independent disappearance fileinfo receiving;
Step 5, compare the described independent disappearance fileinfo of all ground monitoring terminals, know that the part not receiving lower than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly, according to described part, jointly lack fileinfo and determine local common disappearance file;
Step 6, sends described part by the ground monitoring terminal through internet that receives described part and jointly lack file and jointly lacks file to the ground monitoring terminal that does not receive described part and jointly lack file.
Preferably, in above-mentioned data receive method, described threshold percentage is 10%-30%.
Preferably, in above-mentioned data receive method, described threshold percentage is 15%.
Preferably, in above-mentioned data receive method, described ground monitoring terminal distributes according to province territory, at least has a described ground monitoring terminal in the geographic range of each province.
Preferably, in above-mentioned data receive method, described ground monitoring terminal distributes according to territory, county, at least has a described ground monitoring terminal in the geographic range in each county.
Preferably, in above-mentioned data receive method, the data source using described ground monitoring terminal as place geographic range, responds the data filling request of the domestic consumer's terminal in described geographic range.
Preferably, in above-mentioned data receive 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, conventionally adopt the method for wave band backup, because which missing documents is ground-based server cannot judge, all files need to be uploaded to satellite again, occupied bandwidth is very high.In the present invention by the original file information of accepting fileinfo and ground-based server Transmit message of ground monitoring terminal relatively, just can obtain each ground monitoring terminal fail receive independent disappearance fileinfo, by the independent disappearance fileinfo of all ground monitoring terminals of contrast, just can know that the part not receiving lower than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly again.By part, jointly lack fileinfo and can find local common disappearance file.The ground monitoring terminal through internet that order receives local common disappearance file is connected with the ground monitoring terminal that does not receive local common disappearance file, send local common disappearance file to the ground monitoring terminal that does not receive local common disappearance file, just solved the problem of fraction user file disappearance, and avoided all files again to upload the too high phenomenon of occupied bandwidth.
2) in the present invention, setting threshold ratio is 10%-30%, preferential setting threshold ratio is 15%, expression does not receive local common disappearance file lower than 15% ground monitoring terminal, exceed 85% ground monitoring terminal and received local common disappearance file, now by the ground monitoring terminal through internet that receives local common disappearance file, send local common disappearance file to the ground monitoring terminal that does not receive local common disappearance file again, can solve fraction user file disappearance problem.
3) ground monitoring terminal is used for monitoring terrestrial user file reception condition, at least one ground monitoring terminal is set in the geographic range in each county, at least one ground monitoring terminal is set in the geographic range of each province, when there being user file to receive when imperfect, can be to the ground monitoring terminal feedback in County Level Regional, obtain in time complete file data, guaranteed that user receives the integrality of file data and ageing.
Accompanying drawing explanation
Hereinafter in exemplary and nonrestrictive mode, describe specific embodiments more of the present invention in detail with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is user terminal data method of reseptance flow chart.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing, specific embodiment is described in detail.
As shown in Figure 1, the embodiment of the present invention provides a kind of data receive method of satellite user terminal, comprising:
When prior art solves file data loss, conventionally adopt the method for wave band backup, because which missing documents is ground-based server cannot judge, all files need to be uploaded to satellite again, occupied bandwidth is very high.In the present invention by the original file information of accepting fileinfo and ground-based server Transmit message of ground monitoring terminal relatively, just can obtain each ground monitoring terminal fail receive independent disappearance fileinfo, by the independent disappearance fileinfo of all ground monitoring terminals of contrast, just can know that the part not receiving lower than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly again.By part, jointly lack fileinfo and can find local common disappearance file.
Local common disappearance file is the file that only has a minority not receive, and the reason of generation is that file data is successfully uploaded to satellite, and satellite has a few peoples successfully not receive in broadcasting process.Therefore make the ground monitoring terminal through internet that receives local common disappearance file be connected with the ground monitoring terminal that does not receive the local file of disappearance jointly, send local common disappearance file, just solved the problem of fraction user file disappearance, and avoided all files again to upload the too high phenomenon of occupied bandwidth.
In another embodiment of the present invention, setting threshold ratio is 10%-30%, preferential setting threshold ratio is 15%, expression does not receive local common disappearance file lower than 15% ground monitoring terminal, exceed 85% ground monitoring terminal and all received local common disappearance file, now by the ground monitoring terminal that receives local common disappearance file, send local common disappearance file to the ground monitoring terminal that does not receive local common disappearance file again, solved fraction user file disappearance problem; If what threshold percentage was arranged is too high, the user who receives local common disappearance file tails off, and possibly enough files cannot be sent to the user who does not receive local common disappearance file.
In another embodiment of the present invention, ground monitoring terminal is used for monitoring terrestrial user file reception condition, at least one ground monitoring terminal is set in the geographic range in each county, at least one ground monitoring terminal is set in the geographic range of each province, ground monitoring terminal is as the data source in region, when there being user file to receive when imperfect, can be to the ground monitoring terminal feedback in County Level Regional, be convenient to obtain in time complete file data, guaranteed that user receives the integrality of file data and ageing.
As from the foregoing, the embodiment of the present invention has following advantage:
1) when prior art solves file data loss, conventionally adopt the method for wave band backup, because which missing documents is ground-based server cannot judge, all files need to be uploaded to satellite again, occupied bandwidth is very high.In the present invention by the original file information of accepting fileinfo and ground-based server Transmit message of ground monitoring terminal relatively, just can obtain each ground monitoring terminal fail receive independent disappearance fileinfo, by the independent disappearance fileinfo of all ground monitoring terminals of contrast, just can know that the part not receiving lower than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly again.By part, jointly lack fileinfo and can find local common disappearance file.The ground monitoring terminal through internet that order receives local common disappearance file is connected with the ground monitoring terminal that does not receive local common disappearance file, send local common disappearance file to the ground monitoring terminal that does not receive local common disappearance file, just solved the problem of fraction user file disappearance, and avoided all files again to upload the too high phenomenon of occupied bandwidth.
2) in the present invention, setting threshold ratio is 10%-30%, preferential setting threshold ratio is 15%, expression does not receive local common disappearance file lower than 15% ground monitoring terminal, exceed 85% ground monitoring terminal and received local common disappearance file, now by the ground monitoring terminal through internet that receives local common disappearance file, send local common disappearance file to the ground monitoring terminal that does not receive local common disappearance file again, can solve fraction user file disappearance problem.
3) ground monitoring terminal is used for monitoring terrestrial user file reception condition, at least one ground monitoring terminal is set in the geographic range in each county, at least one ground monitoring terminal is set in the geographic range of each province, when there being user file to receive when imperfect, can be to the ground monitoring terminal feedback in County Level Regional, obtain in time complete file data, guaranteed that user receives the integrality of file data and ageing.
So far, those skilled in the art will recognize that, although detailed, illustrate and described multiple exemplary embodiment of the present invention herein, but, without departing from the spirit and scope of the present invention, still can directly determine or derive many other modification or the modification that meet the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or modifications.
Claims (7)
1. a data receive method for satellite user terminal, is characterized in that, comprising:
Step 1, ground-based server sends the file data that needs propelling movement to satellite, and described ground-based server records the original file information of described file data simultaneously;
Step 2, file data described in described satellite reception, and broadcast earthward described file data by the mode of broadcast;
Step 3, ground monitoring terminal receives described file data, described ground monitoring terminal records the reception fileinfo of described file data simultaneously, and described ground monitoring terminal through internet is connected with described ground-based server, and described reception fileinfo is sent to described ground-based server;
Step 4, described ground-based server is by more described original file information and described reception fileinfo, obtains described ground monitoring terminal and fails the independent disappearance fileinfo receiving;
Step 5, compare the described independent disappearance fileinfo of all ground monitoring terminals, know that the part not receiving lower than the ground monitoring terminal of predetermined threshold ratio lacks fileinfo jointly, according to described part, jointly lack fileinfo and determine local common disappearance file;
Step 6, sends described part by the ground monitoring terminal through internet that receives described part and jointly lack file and jointly lacks file to the ground monitoring terminal that does not receive described part and jointly lack file.
2. data receive method according to claim 1, is characterized in that, described threshold percentage is 10%-30%.
3. data receive method according to claim 2, is characterized in that, described threshold percentage is 15%.
4. according to the data receive method described in any one in claim 1-3, it is characterized in that, described ground monitoring terminal distributes according to province territory, at least has a described ground monitoring terminal in the geographic range of each province.
5. data receive method according to claim 4, is characterized in that, described ground monitoring terminal distributes according to territory, county, at least has a described ground monitoring terminal in the geographic range in each county.
6. data receive method according to claim 5, is characterized in that, the data source using described ground monitoring terminal as place geographic range responds the data filling request of the domestic consumer's terminal in described geographic range.
7. data receive method according to claim 1, is characterized in that, described file data is multimedia video file.
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| CN201410022632.8A CN103763018B (en) | 2014-01-17 | 2014-01-17 | Data receiving method for user terminal of satellite |
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| CN201410022632.8A CN103763018B (en) | 2014-01-17 | 2014-01-17 | Data receiving method for user terminal of satellite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103763017A (en) * | 2014-01-17 | 2014-04-30 | 航天数字传媒有限公司 | Data receiving method for user terminal of satellite |
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2014
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