CN108900899A - A kind of fast search system and method for the top box of digital machine based on operator's platform - Google Patents
A kind of fast search system and method for the top box of digital machine based on operator's platform Download PDFInfo
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- CN108900899A CN108900899A CN201810973450.7A CN201810973450A CN108900899A CN 108900899 A CN108900899 A CN 108900899A CN 201810973450 A CN201810973450 A CN 201810973450A CN 108900899 A CN108900899 A CN 108900899A
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention provides a kind of fast search system and method for the top box of digital machine based on operator's platform, and method includes fast search process and programme attribute more new technological process.Fast search process：Screen locking is carried out according to setup parameter, starts filter, request network information table, service describing table and BAT bouquet association table parse corresponding table and data cached；All programs to be added are determined according to the description of network information table；According to one-to-one relationship, the relevant description of each program is taken out from service describing table and BAT bouquet association table respectively；All programs are stored to top box of digital machine；Programme attribute more new technological process：During the program playing process, frequency locking operation is carried out, meanwhile, start filter, requests the Program Association Table under the frequency point, then request program mapping table, it is data cached；According to the frequency point parameters of current frequency locking, all programs under corresponding frequency point are obtained, according to the identity property of Program Map Table in each program, judge whether programme attribute needs to update.
Description
Technical field
The present invention relates to digital TV technologies, are searched more particularly to top box of digital machine based on the program of operator's platform
Rope and program updating method.
Background technique
Top box of digital machine (STB)：It is the equipment of connection a television set and outside source, it can be by the number of compression
Signal changes into television content, and shows on a television set.Data transfer mode include wire cable, satellite antenna and
Terrestrial broadcasting.The received content of set-top box is other than image, sound, additionally it is possible to receive digital content, including electronic programming refers to
South, subtitle etc..
Transport stream (TS)：Transport Stream transport stream, will be with common time base or independent time reference
Single data flow (being transmitted for data) made of one or more PES combinations (compound).
Program Specific Information system (PSI)：Program Specific Information provides different programs and program
In heterogeneity how to be multiplexed into a unified code stream.
Service information system (SI)：Service Information further extends PSI, joined some pairs with
The useful information in family indicates the type of program, service provider, the correlation etc. of program.
Program Association Table (PAT)：Program Association Table defines channel all in current TS stream,
PID number comprising channel number PMT corresponding with each channel.
Program Map Table (PMT)：It, will if containing multiple channels in one TS stream of Program Map Table
Comprising the different pmt table of multiple PID, each pmt table can comprising actual program all audio-video PID and with actual program phase
The PID of other associated data.
Network information table (NIT)：Network Information Table transmits present networks and related with this other
Some information of network.Network information table mainly carries：Network identifier (Network_ID), network name, Transmission system ginseng
The information such as number, program service type and Service_ID.
Service describing table (SDT)：Service Description Table is for describing the road system Zhong Ge section destination name
Claim, the supplier of the program, if there is the corresponding time to describe the information of table etc..The table can describe current transmission stream,
Other transport streams can also be described, this is distinguished by Table ID.
BAT bouquet association table (BAT)：The Bouquet Association Table table provides a series of collection of similar programs
It closes.These programs can not very easily can carry out related-program using the table or certain one kind saves in the same transport stream
Purpose browsing and selection.
In top box of digital machine, tuning is a very important operation, can be by the program in transport stream by tuning
Information parses, and is added in top box of digital machine, and terminal user is enable to watch program, switches program, and check electronics
Program guide etc., the search routine thus packaged using one or search implementation method can be mentioned greatly for operator
Rise the experience of terminal user.
Mode currently based on all programs of the search of operator's platform includes two kinds, and one is web search
(Network Search), it is specific as follows one is quick channel search (Fast Scan)：
Network tuning (Network Search)：Network tuning is mainly the network information table description passed through in dominant frequency point,
All frequency point informations of whole network are parsed, then, top box of digital machine obtains PSI/SI agreement from each transport stream
Specified in respective table information, finally program is added in top box of digital machine；
Quick channel search (Fast Scan)：Quick channel search is mainly all frequency point informations and program letter in whole network
Breath, is added in the transport stream of dominant frequency point, top box of digital machine obtains specified in PSI/SI agreement from the transport stream of dominant frequency point
The information of respective table is added to all programs in whole network in top box of digital machine.
Both the above channel search method has the disadvantage that：
1) network tuning：Network tuning needs take an undesirably long time.By taking DVBC as an example, if contained in carrier network
There are 70 frequency points, about 1.5 seconds each locking frequency point time obtained time about 3 seconds of corresponding table specified in PSI/SI agreement,
It is 4.5 seconds that the addition for completing a frequency point program, which needs the time, that is to say, that the search for completing whole network needs the time to be
4.5*70=315 the second；
2) quick channel search：Quick channel search is searched for for network tuning, has sizable improvement at time-consuming aspect, but
It is that can increase accordingly transport stream transmission code rate since the information of all programs is all attached in transport stream.
The fast search that the present invention is realized has great improvement for network tuning in terms of time-consuming, completes
The time of whole network search is about 12 seconds；It is only to add additional micro data, to biography for quick channel search
The transmission code rate of defeated stream is also only micro increase.
Summary of the invention
In order to solve the above technical problems existing in the prior art, the present invention provides a kind of time-consumings less and to transport stream
Transmission code rate influence the method for fast searching of lesser new top box of digital machine.
The purpose of the present invention is be achieved through the following technical solutions：
A kind of method for fast searching of the top box of digital machine based on operator's platform, including search routine and programme attribute update
Process；
Fast search process includes the following steps：
S11, screen locking is carried out according to the parameter of top box of digital machine search interface setting；
S12, starting filter, request network information table；
S13, starting filter, request service describing table；
S14, starting filter, requested service group's contingency table；
S15, network information table is obtained, parsed and data cached；
S16, service describing table is obtained, parsed and data cached；
S17, BAT bouquet association table is obtained, parsed and data cached；
S18, firstly, the description according to network information table determines all programs to be added；Then, it is closed according to one-to-one correspondence
System takes out the relevant description of each program from service describing table and BAT bouquet association table respectively, completes to each programme attribute
Addition；It should be noted that must be comprising describing and transmitting to the frequency point information of the program in network information table in programme attribute
Traffic identifier；
S19, all programs are stored to top box of digital machine；
Programme attribute more new technological process includes：
S21, program play during, the frequency point information according to corresponding to current playing program, carry out frequency locking operation；
S22, starting filter, request program contingency table；
S23, Program Association Table is obtained, parsed and data cached；
S24, starting filter, according to the description of Program Association Table, request program mapping table；
S25, Program Map Table is obtained, parsed and data cached；
S26, according to the frequency point information of frequency locking current in S21, obtain all programs in set-top box under the frequency point, and according to
The identity property of Program Map Table, judges whether programme attribute needs to update, if you need to update, from current transmission stream Program Map Table
It is data cached in, find the corresponding description of corresponding each program, and carry out again to the part attribute for correspond to program in set-top box
New assignment；
If S27, the program currently updated are exactly program being played on, need to replay the program, otherwise,
Without replaying.
Specifically, in S15, in network information table comprising service identifiers corresponding to each program, programme type identification and
The logical number of program is identified in network；In S16, the mark of programm name corresponding to each program is included in service describing table
And scrambled program mark；In S17, in BAT bouquet association table comprising each program in a network belonging to business group message identification.
Preferably, the sequencing that network information table, service describing table and BAT bouquet association table obtain is different, need
The table that will acquire first is parsed and is cached, and all data to network information table, service describing table and BAT bouquet association table are all
After obtaining, then handle together.
In S26, the condition for judging whether programme attribute needs to update is：The mark of Program Map Table in programme attribute is
No is ' 0 ', indicates to need to update if it is ' 0 ', then indicates that program is updated if it is non-' 0 ', do not need to update.
A kind of fast search system the present invention also provides top box of digital machine based on operator's platform comprising search module
With programme attribute update module；
Fast search module includes：
First frequency locking unit is used to carry out screen locking according to the frequency point parameters that top box of digital machine search interface is arranged；
First filter start unit is used to start filter, requests network information table；
Second filter start unit is used to start filter, requests service describing table；
Third filter start unit is used to start filter, requested service group's contingency table；
First extraction unit is used to parse network information table and caches；
Second extraction unit is used for analysis service and describes table and cache；
Third extraction unit is used to parse BAT bouquet association table and caches；
Collection unit is used to determine all programs to be added according to the description of network information table, according to one-to-one correspondence
Relationship takes out the relevant description of each program from service describing table and BAT bouquet association table respectively, completes to each program category
The addition of property；It should be noted that must be comprising describing and passing to the frequency point information of the program in network information table in programme attribute
Defeated traffic identifier；
Storage unit is used to store all programs to top box of digital machine；
Programme attribute update module includes：
Second frequency locking unit, for carrying out frequency locking operation to frequency point corresponding to the program during program plays；
4th filter start unit is used to start filter, request program contingency table；
4th extraction unit is used to parse Program Association Table and caches；
5th filter start unit is used to start filter, is reflected according to the description request program in Program Association Table
Firing table；
5th extraction unit is used to parse Program Map Table and caches；
Judging unit is updated, the frequency point parameters according to current frequency locking are used for, obtains in set-top box and owns under current frequency point
Program judges whether program needs to update according to the mark of the Program Map Table in programme attribute, if it is judged that need
Update, directly from Program Map Table it is data cached in find corresponding description, and to the part for corresponding to program in set-top box
Attribute carries out assignment again；
Program updating unit is used to update the program that Update attribute is needed in set-top box.
Further include replay judging unit, is used to judge whether the program updated to be program being played on, if it is,
The program is replayed, otherwise, without replaying program；
Specifically, first filter start unit, obtains network information table, contains service corresponding to each program in table
Mark, programme type identification and program logic number-mark；Second filter start unit obtains service describing table, in table
It is identified containing name identification corresponding to each program and scrambled program；Third filter start unit obtains business group association
Table contains the business group message identification of each program in table.
Preferably, parse cache unit, due to network information table, service describing table and BAT bouquet association table obtain it is successive
Sequence be it is different, the table for needing will acquire first is parsed and is cached, to network information table, service describing table and business group close
After all data of connection table all obtain, then handle together.
Preferably, judging unit is updated, judging whether programme attribute needs to update is reflected according to the program in programme attribute
The identifying whether of firing table determines whether programme attribute needs to update for ' 0 ', indicates to need to update if it is ' 0 ', if it is non-
' 0 ' then indicates that program is updated, does not need to update.
Preferably, judging unit is updated, the frequency point parameters according to current frequency locking are used for, obtains current frequency point in set-top box
Under all programs, judge whether program needs to update according to the mark of the Program Map Table in programme attribute, if programme attribute
In Program Map Table be identified as ' 0 ', indicate that the program needs to update, directly from Program Map Table it is data cached in find
Corresponding description, and assignment again is carried out to the part attribute for corresponding to program in set-top box；If the program in programme attribute reflects
Firing table is identified as non-' 0 ', then it represents that program is updated, does not need to update again.
Beneficial effects of the present invention are as follows：
The fast search that the present invention is realized has great improvement for network tuning in terms of time-consuming, completes
The time of whole network search is about 12 seconds；It is only to add additional micro data, to biography for quick channel search
The transmission code rate of defeated stream is also only micro increase, moreover, the operator platform more for frequency point, effect are more obvious.
Detailed description of the invention
Fig. 1 is the search routine schematic diagram of the searching method of the embodiment of the present invention one；
Fig. 2 is that the programme attribute of the searching method of the embodiment of the present invention one updates flow diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one：
A kind of method for fast searching the present embodiment provides top box of digital machine based on operator's platform, including search routine and
Programme attribute more new technological process illustrates its method below in conjunction with Fig. 1 and 2.
Fast search process：
As shown in Figure 1, starting to search for, frequency locking is carried out according to the frequency locking parameter of top box of digital machine search interface setting, and
Apply for filter difference screen information table, service describing table and BAT bouquet association table data, i.e. starting filter, requests net
Network information table, service describing table and BAT bouquet association table；
Since the sequencing that each table obtains is different, needs the table that will first obtain to be parsed and be cached, etc.
Other tables all obtain, then handle together；
It, will according to one-to-one relationship after network information table, service describing table and BAT bouquet association table all obtain
The description of each program in these tables is taken out, and is added in the attribute of corresponding program.Wherein：Network information table can obtain
To the mark of frequency point corresponding to each program, transport stream identification, service identifiers, programme type identification (such as TV programme, broadcast section
Mesh etc.) and program logic number-mark；The mark of programm name corresponding to the available program of service describing table and scrambled program
Mark；The available program of BAT bouquet association table in a network belonging to business group information；
It stores finally, these are searched out the program come to top box of digital machine.
It should be noted that the information of these programs and imperfect, top box of digital machine can not be using these information by program
It plays back, because having lacked the most important information of broadcasting program in these programme attributes：Program Association Table and Program Map Table
Information.
Programme attribute more new technological process：
As shown in Fig. 2, after fast search completion, starting to play the program for searching out and, due to broadcasting as above
Program has lacked the critical data of Program Association Table, Program Map Table, can not normal play.
Due in the search phase, the frequency point information of program is added in programme attribute by network information table, so
When program plays, the frequency locking that top box of digital machine can be carried out according to the frequency point information of program is operated；After frequency locking, starting filtering
Device, request program contingency table data；
After Program Association Table obtains, according in Program Association Table description start filter, request program mapping table,
After obtaining Program Map Table, parses data and be cached；
It is all under current frequency point from being obtained in teaching machine set-top box according to the frequency point parameters of the current frequency locking of top box of digital machine
Program determines the need for updating program according to the mark of the Program Map Table in each programme attribute, if saved in program
Mesh mapping table is identified as ' 0 ', and expression needs to update, at this moment, from transport stream Program Map Table it is data cached in, according to one
One corresponding relationship finds the data of corresponding program, again sets attribute；If in program Program Map Table be identified as it is non-
' 0 ', then it represents that program is updated, does not need to update；
If the program updated is currently playing program, currently playing program is replayed, if it is not, then being not necessarily to
It replays.
Generally speaking, finally search out come program number be according in network information table to sections all in whole network
Mesh describes come what is determined, and service describing table, BAT bouquet association table, Program Association Table, Program Map Table are only merely to each section
Purpose attribute is described or supplements.Due to taking Program Association Table and Program Map Table under each frequency point of dynamic acquisition
Data reduce the transmission code rate of dominant frequency point transport stream, greatly improve the tuning usage experience of broken clients.
To sum up the inventive point of this example is：Actual programs number in network is determined according to network information table
Method；And using in playing process, dynamic is carried out to Program Association Table and Program Map Table by way of automatically updating
It obtains, the process flow of addition attribute.
Embodiment two：
The present embodiment provides a kind of systems of method for fast searching for realizing embodiment one comprising tuning module and
Programme attribute update module.
Program tuning module includes：
First frequency locking unit is used to carry out screen locking according to the frequency point parameters that top box of digital machine search interface is arranged；
First filter start unit is used to start filter, requests network information table；
Second filter start unit is used to start filter, requests service describing table；
Third filter start unit is used to start filter, requested service group's contingency table；
First extraction unit is used to parse network information table and caches；
Second extraction unit is used for analysis service and describes table and cache；
Third extraction unit is used to parse BAT bouquet association table and caches；
Collection unit is used to determine all programs to be added according to the description of network information table, according to one-to-one correspondence
Relationship takes out the relevant description of each program from service describing table and BAT bouquet association table respectively, completes to each program category
The addition of property；Frequency point mark, transport stream identification, service identifiers, program corresponding to the available each program of network information table
Type identification (such as TV programme, broadcast program) and program logic number-mark；The available program institute of service describing table is right
The programm name mark and scrambled program mark answered；The available program of BAT bouquet association table in a network belonging to business group letter
Breath；It should be noted that must be comprising describing and transmitting to fail to be sold at auction to the frequency point information of the program in network information table in programme attribute
Know；
Storage unit is used to search out the program come and stores to top box of digital machine.
Programme attribute update module includes：
Second frequency locking unit, for carrying out frequency locking operation to frequency point corresponding to the program during program plays；
4th filter start unit is used to start filter, request program contingency table；
4th extraction unit is used to parse Program Association Table and caches；
5th filter start unit is used to start filter, is reflected according to the description request program in Program Association Table
Firing table；
5th extraction unit is used to parse Program Map Table and caches；
Judging unit is updated, the frequency point parameters according to current frequency locking are used for, obtains in set-top box and owns under current frequency point
Program judges whether program needs to update according to the mark of the Program Map Table in programme attribute, if it is judged that need
Update, directly from Program Map Table it is data cached in find corresponding description, and to the part for corresponding to program in set-top box
Attribute carries out assignment again；
Program updating unit is used to update the program that Update attribute is needed in set-top box.
Judging unit is replayed, is used to judge whether the program updated to be program being played on, if it is, broadcasting again
The program is put, otherwise, without replaying program.
The above content is combine specific optimal technical scheme further detailed description of the invention, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of method for fast searching of top box of digital machine based on operator's platform, it is characterised in that：It include search routine and
Programme attribute more new technological process；
Fast search process includes the following steps：
S11, screen locking is carried out according to the parameter of top box of digital machine search interface setting；
S12, starting filter, request network information table；
S13, starting filter, request service describing table；
S14, starting filter, requested service group's contingency table；
S15, network information table is obtained, parsed and data cached；
S16, service describing table is obtained, parsed and data cached；
S17, BAT bouquet association table is obtained, parsed and data cached；
S18, firstly, the description according to network information table determines all programs to be added；Then, according to one-to-one relationship,
The relevant description of each program is taken out from service describing table and BAT bouquet association table respectively, completion adds each programme attribute
Add；It should be noted that must be comprising describing and transmitting to fail to be sold at auction to the frequency point information of the program in network information table in programme attribute
Know；
S19, all programs are stored to top box of digital machine；
Programme attribute more new technological process includes：
S21, program play during, the frequency point information according to corresponding to current playing program, carry out frequency locking operation；
S22, starting filter, request program contingency table；
S23, Program Association Table is obtained, parsed and data cached；
S24, starting filter, according to the description of Program Association Table, request program mapping table；
S25, Program Map Table is obtained, parsed and data cached；
S26, according to the frequency point information of frequency locking current in S21, obtain all programs in set-top box under the frequency point, and according to program
The identity property of mapping table, judges whether programme attribute needs to update, if you need to update, from the slow of current transmission stream Program Map Table
In deposit data, the corresponding description of corresponding each program is found, and the part attribute for corresponding to program in set-top box is assigned again
Value；
If S27, the program currently updated are exactly program being played on, need to replay the program, otherwise, does not have to
It replays.
2. method for fast searching according to claim 1, it is characterised in that：It include each section in the network information table in S15
The logical number of program is identified in service identifiers corresponding to mesh, programme type identification and network.
3. method for fast searching according to claim 1, it is characterised in that：It include each section in the service describing table in S16
The mark of programm name corresponding to mesh and scrambled program mark.
4. method for fast searching according to claim 1, it is characterised in that：In S17, comprising each in the BAT bouquet association table
Program in a network belonging to business group message identification.
5. method for fast searching according to any one of claims 1 to 4, it is characterised in that：The network information table, service are retouched
State the sequencing that table and BAT bouquet association table obtain be it is different, the table for needing will acquire first is parsed and is cached, to net
After all data of network information table, service describing table and BAT bouquet association table all obtain, then handle together.
6. method for fast searching according to claim 1, it is characterised in that：In S26, judge what whether programme attribute needed to update
Condition is：Program Map Table in programme attribute identifies whether to be ' 0 ', indicates to need to update if it is ' 0 ', if it is non-
' 0 ' then indicates that program is updated, does not need to update.
7. a kind of fast search system of top box of digital machine based on operator's platform, it is characterised in that：Including fast search module
With programme attribute update module；
Fast search module includes：
First frequency locking unit is used to carry out screen locking according to the frequency point parameters that top box of digital machine search interface is arranged；
First filter start unit is used to start filter, requests network information table；
Second filter start unit is used to start filter, requests service describing table；
Third filter start unit is used to start filter, requested service group's contingency table；
First extraction unit is used to parse network information table and caches；
Second extraction unit is used for analysis service and describes table and cache；
Third extraction unit is used to parse BAT bouquet association table and caches；
Collection unit is used to determine all programs to be added according to the description of network information table, according to one-to-one relationship,
The relevant description of each program is taken out from service describing table and BAT bouquet association table respectively, completion adds each programme attribute
Add；It should be noted that must be comprising describing and transmitting to fail to be sold at auction to the frequency point information of the program in network information table in programme attribute
Know；
Storage unit is used to store all programs to top box of digital machine；
Programme attribute update module includes：
Second frequency locking unit, for carrying out frequency locking operation to frequency point corresponding to the program during program plays；
4th filter start unit is used to start filter, request program contingency table；
4th extraction unit is used to parse Program Association Table and caches；
5th filter start unit is used to start filter, according to the description request program mapping table in Program Association Table；
5th extraction unit is used to parse Program Map Table and caches；
Judging unit is updated, the frequency point parameters according to current frequency locking are used for, all programs under current frequency point in acquisition set-top box,
Judge whether program needs to update according to the mark of the Program Map Table in programme attribute, if it is judged that need to update,
Directly from Program Map Table it is data cached in find corresponding description, and to corresponded in set-top box the part attribute of program into
Capable assignment again；
Program updating unit is used to update the program that Update attribute is needed in set-top box.
8. system according to claim 7, it is characterised in that：
Further include replay judging unit, is used to judge whether the program updated to be program being played on, if it is, again
The program is played, otherwise, without replaying program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810973450.7A CN108900899B (en) | 2018-08-24 | 2018-08-24 | Operator platform-based quick search method for digital set top box |
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| CN111190684A (en) * | 2019-12-31 | 2020-05-22 | 深圳Tcl数字技术有限公司 | Display terminal user interface replacing method, device, equipment and storage medium |
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