CN102427552B - Code stream broadcast system, code stream broadcast method and software over air upgrade method - Google Patents
Code stream broadcast system, code stream broadcast method and software over air upgrade method Download PDFInfo
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- CN102427552B CN102427552B CN201110288174.9A CN201110288174A CN102427552B CN 102427552 B CN102427552 B CN 102427552B CN 201110288174 A CN201110288174 A CN 201110288174A CN 102427552 B CN102427552 B CN 102427552B
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Abstract
The invention discloses a code stream broadcast system, a code stream broadcast method and a software over the air (OTA) upgrade method. The software OTA upgrade method comprises the following steps that: upgrading is launched and a current frequency point is locked; OTA upgrade code stream data are received and a software upgrade packet is downloaded; it is monitored whether there is frequency point switching operation; if not, the OTA upgrade code stream data are continuously received and the software upgrade packet is downloaded; if so, a replaced frequency point is inspected and is locked, and the OTA upgrade code stream data are continuously received and the software upgrade packet is downloaded. According to the OTA upgrade method provided in the invention, software OTA upgrade code streams are broadcasted at all frequency points; and when upgrading of original software in a set-top box or downloading of new software that does not existed in the set-top box is carried out, the user is allowed to carry out frequency point switching operation; therefore, using of the set-top box by the user is completely not influenced during the whole upgrading process as well as no cost load is added.
Description
Technical field
The present invention relates to a kind of digital television techniques, especially a kind of code stream broadcasting system, code stream broadcasting method and software aerial upgrade (Over The Air, OTA) method.
Background technology
Along with the development of digital television techniques, the function of Set Top Box is continuous development and improvement, and in house software is also being constantly updated, and this just need to carry out irregular software upgrading to Set Top Box, to meet the demand of the new function of user's Real-time Obtaining Set Top Box.The upgrading mode adopting is referred to as OTA upgrading, and user can directly pass through the reception downloading mode of signalling channel, creates and install update software in Set Top Box.
Existing a kind of OTA upgrade method is: set-top-box opening detects OTA upgrading sign, judge whether to carry out software upgrading, if need upgrading, go to move OTA ROMPaq (loader), if do not need upgrading, run application, user can normally use Set Top Box.OTA ROMPaq can be through detecting upgrade parameter, locked frequency point, from code stream, receive the sequence of operations such as data, data detection, data writing completes escalation process.This escalation process may expend the time that a few minutes do not wait to dozens of minutes, and user cannot use Set Top Box to watch TV programme, tuning, reception stock information etc. in this process, in addition, any one process in OTA escalation process occurs that mistake all may cause upgrading unsuccessfully, to user, uses and causes unnecessary trouble.
In prior art, also has a kind of OTA upgrading mode: in set-top box application program, have a upgrading module, this upgrading module, at running background, does not affect the normal use of Set Top Box under normal circumstances; When upgrade information being detected, upgrading module can lock upgrade frequency point, receives data and carries out OTA upgrading, in whole escalation process, user can only watch the program in upgrade frequency point, can not carry out across frequency zapping, can not carry out tuning, receive stock information etc., user is brought inconvenience.Also have a kind of similar mode (application number is CN200710125045.1), adopt two tuners, one for receiving OTA data, another one can be used for freely switching program, but this mode needs double high-frequency head hardware supports, can cause the increase of cost, versatility a little less than.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of code stream broadcasting system, code stream broadcasting method and software aerial upgrade method are provided, be intended to solve in set top box upgrading process, user cannot normally use Set Top Box and carry out the problem across frequency operation, such as freely changing program channel, tuning and receiving stock information etc.
For achieving the above object, the present invention adopts following technical proposals:
, described system comprises: code stream machine, for playing aerial upgrade code stream and shunting; At least one multiplexer, be coupled to described code stream machine, multiplexing for the program stream of each frequency and shunting Hou Ge road aerial upgrade code stream are carried out respectively, and at least one modulator, couple with described multiplexer, for each circuit-switched data stream after multiplexing is modulated to respectively to each frequency, broadcast.
A broadcasting method, described method comprises: the aerial upgrade code stream that code stream machine sowing is gone out splits into the aerial upgrade code stream that multichannel is identical; Each road aerial upgrade code stream in the identical aerial upgrade code stream of described multichannel is carried out multiplexingly one by one with the program stream of each frequency respectively, obtain multiplex data stream, and each circuit-switched data stream after multiplexing is modulated to different frequencies issues.
A software aerial upgrade method for described code stream broadcasting system, described method comprises: start upgrading, lock current frequency; Receive aerial upgrade bit stream data, download software upgrade package; Judged whether frequency handover operation, if without frequency handover operation, continue to receive described aerial upgrade bit stream data, download software upgrade package, if there is frequency handover operation, the frequency after changing checked, and lock the frequency after described replacing, continue to receive described aerial upgrade bit stream data, download software upgrade package.
Described method is also included in software upgrade package downloaded after, software upgrade package is installed:
New version software corresponding to described software upgrade package is installed to the address space different from original software, then revises start-up parameter, point to new version software, after Set Top Box starts successfully next time, delete original software and software upgrade package; Or
New version software corresponding to described software upgrade package is installed to the address space identical with original software, covers original software; Or
New version software corresponding to described software upgrade package is installed to any available address space, and in start-up parameter, increases the information of new version software.
Described reception aerial upgrade code stream, download software upgrade package and further comprise:
Receive a block data;
Judge whether described block data received, if received, receive next block data, if do not receive, described block data is saved in buffer memory;
Judge whether to meet the data in buffer memory are write to imposing a condition in nonvolatile storage, if meet, the data in buffer memory and upgrade status are saved in nonvolatile storage; If do not meet, do not continue to receive next block data;
Judge whether to complete software upgrade package and download, if do not complete, repeat above steps.
Describedly judge whether frequency handover operation, if do not have frequency to switch, continued to receive aerial upgrade code stream, downloaded software upgrade package.
Described upgrade status at least comprises upgrading progress msg.
Before described startup upgrade step, also comprise: after Set Top Box electrifying startup, check upgrade status, judge whether to have existed upgrading, if there is not upgrading, check software upgrading sign, check and whether have new version software to need upgrading; If there is upgrading,
Judge whether to exist uncompleted download, if exist, start upgrading, according to upgrade status information, continue to download the part that software upgrade package does not complete download; If do not exist, the software upgrade package of having downloaded is installed.
Before described startup upgrade step, also comprise: described code stream broadcasting system by the program stream of aerial upgrade code stream and each frequency respectively multiplexing, modulation after at each frequency, send.
Describedly data in buffer memory write to imposing a condition in nonvolatile storage comprise:
Data in buffer memory reach the length of setting; And
All deblockings of software upgrade package have been downloaded.
Described frequency handover operation is zapping operation, tuning operation or receives stock information operation.
Software OTA upgrade method of the present invention, it is by broadcasting software aerial upgrade code stream at each frequency, the download of non-existent new software in the upgrading of original software or Set Top Box complete Set Top Box when allowing user to carry out across frequency operation in, in whole escalation process, do not affect user completely and use Set Top Box, user experiences completely less than escalation process, improving to greatest extent user experiences, solve the puzzlement that cannot normally use Set Top Box to cause user in escalation process, and do not needed to increase cost burden.
The present invention is guaranteeing that each frequency has under the prerequisite of enough bandwidth broadcast programs, use headend equipment by upgrading code stream with certain bandwidth modulation in each frequency, when upgrading module detects after upgrade information, can carry out OTA upgrading at any frequency, in escalation process, user can normally use Set Top Box, arbitrarily switch program, or carry out other and operate across frequency, experience completely less than just at upgrade software, after software all downloaded, upgrading module is carried out new software installation automatically on backstage.After installation, start next time moves the software of new edition.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of code stream broadcasting system;
Fig. 2 is another schematic diagram of code stream broadcasting system;
Fig. 3 is software aerial upgrade method flow diagram;
Fig. 4 downloads software upgrade package flow chart;
Fig. 5 is the upgrading check process figure powering on after start.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and illustrated embodiment of the present invention and explanation thereof are used for explaining the present invention, and improper restriction of the present invention not in pairs.
In the middle of claims and specification, used some vocabulary to censure specific element.Those of ordinary skill in affiliated field should be understood, and hardware manufacturer may be called same element by different titles.Claims of the present invention and specification are not used as distinguishing the method for element with the difference of title, but the difference in function is used as the criterion of distinguishing with element.In the whole text, in the middle of specification and follow-up right item, be open term mentioned " comprising ", therefore should be construed to " comprise but be not limited to ".In addition, " coupling " word comprises directly any and is indirectly electrically connected means at this.Therefore, if describe first device in literary composition, be coupled to the second device, represent that this first device can directly be electrically connected in this second device, or be indirectly electrically connected to this second device by other device or connection means.
The technical program is guaranteeing that each frequency has under the prerequisite of enough bandwidth broadcast programs, use headend equipment by upgrading code stream with certain bandwidth modulation in each frequency, when upgrading module detects after upgrade information, can carry out OTA upgrading at any frequency, in escalation process, user can normally use Set Top Box, arbitrarily switch program, or carry out other and operate across frequency, experience completely less than just at upgrade software, after software all downloaded, upgrading module is carried out new software installation automatically on backstage.After installation, start next time moves the software of new edition.
Fig. 1 is the schematic diagram of code stream broadcasting system, code stream broadcasting system 10 comprises code stream machine 101 and corresponding multiplexer and the modulator of each frequency, its intermediate-frequeney point 1 correspondence be multiplexer 1 and modulator 1, frequency 2 correspondences be multiplexer 2 and modulator 2...... frequency N corresponding be multiplexer N and modulator N.Code stream machine 101 couples with multiplexer, and each multiplexer couples with corresponding modulator.On a frequency, can there is multiple programs simultaneously, be referred to as program stream, program stream 1 as shown in FIG., program stream 2...... program stream N.Code stream machine 101 for example, by OTA upgrade (passing through splitter) after code stream shunting, can obtain the OTA upgrading code stream that multichannel is identical, take frequency 1 as example, by multiplexer 1, realize the multiplexing of program stream 1 and OTA upgrading code, then 1 pair of the modulator data flow after multiplexing is modulated, and finally making has identical upgrade data in each frequency.Data flow after modulation is sent to Set Top Box 102, and signal amplifier can be passed through in centre, the processes such as network transmission, and this is the common technological know-how in affiliated field, herein for succinctly repeating no more.In another embodiment of the present invention, as shown in Figure 2, also can adopt one or more multiplexers with multichannel output to carry out a plurality of multiplexers shown in alternate figures 1, or adopt other to there is the device of multiplexing function.In addition, a plurality of modulators shown in Fig. 1 also can have the modulator of multichannel input to replace as shown in Figure 2.Multiplexer Yi road output is connected with the input of modulator Yi road, to guarantee that the data of each road after multiplexing all can be modulated.This embodiment is the reasonable distortion to Fig. 1 illustrated embodiment, and those skilled in the art, when making according to the actual requirements similar change, does not separately repeat.
Fig. 3 is software aerial upgrade method flow diagram, comprising:
Step 301: start upgrading, lock current frequency;
Step 302: receive aerial upgrade bit stream data, download software upgrade package;
Step 303: monitoring users operation;
Step 304: judged whether frequency handover operation, if without frequency handover operation, continued step 302, if there is frequency handover operation, continued step 305;
Step 305: the frequency after changing is checked, and lock the frequency after described replacing, continue step 302 and receive aerial upgrade bit stream data, download software upgrade package.Escalation process is supported " breakpoint transmission ", when application program is switched after frequency, can on new frequency, continue to receive and not yet download complete data.
With zapping, be operating as example, above-mentioned steps 303 and 304 is in fact for monitoring zapping operation and judging whether this zapping operation has been switched to another frequency from a frequency.It is also so that tuning, stock information receive operation, does not separately repeat.Though the present invention is received as example with zapping, tuning, stock information, is not limited to this, all operations that relate to frequency switching are all applicable to the present invention.
In order to tackle the situation of interrupting of downloading, need to carry out piecemeal to the data of downloading, and each piece is carried out to mark.This mark includes but not limited to: whole version number, piece sequence number, piece sum.Here, with 256 piecemeals (Section), form a piece.In OTA escalation process, download software upgrade package flow process as shown in Figure 4:
Step 401: receive a block data;
Step 402: judge whether this block data received, if received, continue step 402 and receive next block data, if do not receive, continue step 403;
Step 403: this block data is saved in buffer memory;
Step 404: judge whether to meet the data in buffer memory (DDR) are write to imposing a condition in nonvolatile storage (Flash), such as the data in buffer memory reach the length of setting, all deblockings of software upgrade package have been downloaded.If meet, continue step 405, if do not meet, continue step 401 and receive next block data;
Step 405: the data in buffer memory and upgrade status are saved in Flash memory, and upgrade status can comprise upgrading progress msg;
Step 406: judge whether to complete software upgrade package and download, if do not complete, continue step 401, if complete, enter step 407;
Step 407: mounting software AKU.
Installation after download completes:
New version software corresponding to software upgrade package is installed to the address space different from original software, then revises start-up parameter, point to new version software, after Set Top Box starts successfully next time, delete original software and software upgrade package; Or new version software corresponding to software upgrade package is installed to the address space identical with original software, covers original software; Or new version software corresponding to described software upgrade package is installed to any available address space, and in start-up parameter, increases the information of new version software.
In OTA upgrading downloading process, also likely run into the situation of power-off, when restarting or powering on, can carry out the upgrading check process powering on after start shown in Fig. 5:
Step 501: check upgrade status;
Step 502: judge whether to have existed upgrading, if having, enter step 503, if do not have, enter step 504;
Step 503: judge whether to exist uncompleted download, if exist, continue step 505, if do not have, continue step 506;
Step 504: check software upgrading sign, check and whether have new version software to need upgrading;
Step 505: start upgrading, continue to download according to upgrade status information the part that software upgrade package does not complete download;
Step 506: the software upgrade package of having downloaded is installed.
Above-described embodiment is of the present inventionly more preferably to select, other embodiment that modifies on basis of the present invention or expand, and relevant technical staff in the field can be easy to expect and realize, the present invention repeats no more.
Although the present invention is to disclose as above with regard to preferred embodiment, so it is not in order to limit the present invention.Persons of ordinary skill in the technical field of the present invention, without departing from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is when defining and be as the criterion depending on previous claims.
Claims (7)
1. a software aerial upgrade method that adopts code stream broadcasting system, described system comprises:
Code stream machine, for playing aerial upgrade code stream and shunting;
At least one multiplexer, is coupled to described code stream machine, multiplexing for the program stream of each frequency and shunting Hou Ge road aerial upgrade code stream are carried out respectively, and
At least one modulator, couples with described multiplexer, for each circuit-switched data stream after multiplexing is modulated to respectively to each frequency, broadcasts;
It is characterized in that, described method comprises:
Set Top Box starts upgrading, locks current frequency;
Receive aerial upgrade bit stream data, download software upgrade package;
Judge whether frequency handover operation, if without frequency handover operation, continued to receive described aerial upgrade bit stream data, downloaded software upgrade package, if there is frequency handover operation,
Frequency after changing is checked, and lock the frequency after described replacing, continue to receive described aerial upgrade bit stream data, download software upgrade package.
2. the method for claim 1, is characterized in that, described method is also included in software upgrade package downloaded after, software upgrade package is installed:
New version software corresponding to described software upgrade package is installed to the address space different from original software, then revises start-up parameter, point to new version software, after Set Top Box starts successfully next time, delete original software and software upgrade package; Or
New version software corresponding to described software upgrade package is installed to the address space identical with original software, covers original software; Or
New version software corresponding to described software upgrade package is installed to any available address space, and in start-up parameter, increases the information of new version software.
3. the method for claim 1, is characterized in that, described reception aerial upgrade bit stream data is downloaded software upgrade package and further comprised: receives a block data;
Judge whether described block data received, if received, receive next block data, if do not receive, described block data is saved in buffer memory;
Judge whether to meet the data in buffer memory are write to imposing a condition in nonvolatile storage, if meet, the data in buffer memory and upgrade status are saved in nonvolatile storage; If do not meet, do not continue to receive next block data;
Judge whether to complete software upgrade package and download, if do not complete, repeat above steps.
4. method as claimed in claim 3, is characterized in that, described upgrade status at least comprises upgrading progress msg.
5. the method for claim 1, it is characterized in that, before described startup upgrade step, also comprise: after Set Top Box electrifying startup, check upgrade status, judge whether to have existed upgrading, if there is not upgrading, check software upgrading sign, check and whether have new version software to need upgrading; If there is upgrading, judge whether to exist uncompleted download, if exist, start upgrading, according to upgrade status information, continue to download the part that software upgrade package does not complete download; If do not exist, the software upgrade package of having downloaded is installed.
6. method as claimed in claim 3, is characterized in that, describedly data in buffer memory are write to imposing a condition in nonvolatile storage comprises:
Data in buffer memory reach the length of setting; And
All deblockings of software upgrade package have been downloaded.
7. the method for claim 1, is characterized in that, described frequency handover operation is zapping operation, tuning operation or receives stock information operation.
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| CN201110288174.9A CN102427552B (en) | 2011-09-26 | 2011-09-26 | Code stream broadcast system, code stream broadcast method and software over air upgrade method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104363512A (en) * | 2014-11-04 | 2015-02-18 | 福建新大陆通信科技股份有限公司 | Simple STB (set top box) upgrading method and system without operating system |
| CN106028153A (en) * | 2016-06-21 | 2016-10-12 | 深圳创维数字技术有限公司 | Set top box upgrading and channel changing methods and systems |
| CN106101841A (en) * | 2016-07-13 | 2016-11-09 | 青岛海信宽带多媒体技术有限公司 | The firmware upgrade method of a kind of projection TV and device |
| CN107396188B (en) * | 2017-09-08 | 2019-08-02 | 北京赛科世纪科技股份有限公司 | A kind of upgrade method and system of set-top box |
| CN114281394A (en) * | 2021-12-06 | 2022-04-05 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Method, system, equipment and medium for fast on-line upgrading program |
| CN119135994B (en) * | 2024-10-08 | 2026-04-07 | 中国电信股份有限公司 | Upgrade optimization method and device of set top box, electronic equipment and storage medium |
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