CN105979356A - Channel searching method and device of set-top box - Google Patents
Channel searching method and device of set-top box Download PDFInfo
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- CN105979356A CN105979356A CN201610410555.2A CN201610410555A CN105979356A CN 105979356 A CN105979356 A CN 105979356A CN 201610410555 A CN201610410555 A CN 201610410555A CN 105979356 A CN105979356 A CN 105979356A
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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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
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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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
Abstract
The embodiment of the invention discloses a channel searching method and device of a set-top box. The channel searching method of the set-top box comprises the steps of determining current free resources when searched frequency points are obtained, wherein the free resources comprise resources which can establish multi-path thread and search other frequency points except for the searched frequency points and resources which can distribute multiple channels on the current thread and search different program information corresponding to the searched frequency points; and if determining that the free resources currently exist, searching and storing corresponding program information based on the free resources. Aiming at the feature that most applications may be stopped and most resources may be made free when a front-end broadcasts data circularly and the set-top box searches channels, a way of multithread and multipath simultaneous table searching and multichannel PMT reception is adopted, so that channel searching time is shortened exponentially, the current situation of daily increase of the frequency points and the programs is solved efficiently, the project debugging time is shortened, the user experience is improved greatly, and the product competitiveness is increased.
Description
Technical field
The present embodiments relate to the technical field of Set Top Box, particularly relate to the method and device of a kind of Set Top Box tuning.
Background technology
Along with development and the progress of science and technology, the developing rapidly of computer technology, data compression technique, multimedia technology and Internet Internet technology in epoch, in particular with the development of data compression technique into, television is brought the epoch developed rapidly.By wired, satellite and terrestrial transmission, video, audio frequency and data are digitized so that multi-channel program can be transmitted in a physical channel, cause the quantity of television program transmission to be multiplied.
At present, the existing station search mode of Set Top Box mainly has following three kinds:
The first is NIT tuning, set-top box software development company can set an initial frequency (Main Frequency) in Set Top Box according to operator needs or claim dominant frequency point, Set Top Box can be according to the physical parameter of this dominant frequency point, such as frequency, symbol rate, go to lock this frequency with modulation system, obtain NIT table (Network Information Table), NIT table describes frequency present in the current network segment by Cable Delivery System Descriptor descriptor, symbol rate, the frequency point information such as modulation parameter, lock these frequencies the most successively, collect PAT, PMT, the tables such as SDT are to obtain programme information, and be stored in flash；
The second is manual tuning, the frequency that set-top box software locking user specifies, and collects the tables such as PAT, PMT, SDT to obtain programme information and to be stored in flash；
The third is full range point tuning, set-top box software development company can preset all frequency point information in current net according to operator needs in Set Top Box, Set Top Box locks these frequencies preset successively, collects the tables such as PAT, PMT, SDT to obtain programme information and to be stored in flash.
nullOwing to current DVB front-end server uses repeating query mode to broadcast programme information，For fear of DVB terminal unit (Set Top Box) ardware feature，Demod frequency locking typically requires 300-400ms、The most long-time，Demux demultiplexed data needs tens ms，Set Top Box resolves the tables such as PSI/SI and is also required to tens ms，For having tens in net at present、The most up to a hundred frequencies，The region of thousand of programs (the satellite transmission generally even more multiple programs Han 3000-4000)，According to locking each frequency successively at present、Search for the station search mode of each frequency PSI/SI table successively，Complete a NIT tuning、Or full range point tuning generally required for ten a few minutes、Dozens of minutes、The most long-time，If causing leaking platform due to reasons such as jitters during tuning、May must repeat once、Repeatedly tuning operation，For user, this obviously cannot stand for this.
Summary of the invention
The purpose of the embodiment of the present invention is to propose the method and device of a kind of Set Top Box tuning, it is intended to the problem solving how quick channel search.
For reaching this purpose, the embodiment of the present invention by the following technical solutions:
First aspect, a kind of method of Set Top Box tuning, described method includes:
In the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；
If it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource.
Preferably, described if it is determined that current available free resource, then before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether not search frequency.
Preferably, however, it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread search for described in do not search the programme information that frequency is corresponding.
Preferably, described if it is determined that current available free resource, then before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether to have searched for frequency described in pinning；
If having searched for frequency described in locked, then search for, described in parsing, the programme information that frequency is corresponding；
Other programme informations having searched for frequency described in determining whether corresponding do not search out；
The most then perform if it is determined that current available free resource, then to search for and store corresponding programme information according to described idling-resource.
Preferably, described if it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in searched for the resource of different programme informations corresponding to frequency, then automatically distribute passage according to described idling-resource, and searched for, described in the passage acquisition of distribution, other programme informations that frequency is corresponding.
Second aspect, the device of a kind of Set Top Box tuning, described device includes:
Determine module, for in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；
Search module, for if it is determined that current available free resource, then searching for and store corresponding programme information according to described idling-resource.
Preferably, described device also includes:
First judge module, is used for judging whether not search frequency.
Preferably, described search module, it is used for:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread search for described in do not search the programme information that frequency is corresponding.
Preferably, described device also includes:
Second judge module, is used for judging whether to have searched for frequency described in pinning；
Parsing module, if having searched for frequency described in locked, has then searched for, described in parsing, the programme information that frequency is corresponding；
3rd judge module, other programme informations being used for having searched for frequency corresponding described in determining whether do not search out；
Perform module, for the most then performing if it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource.
Preferably, described search module, it is used for:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in searched for the resource of different programme informations corresponding to frequency, then automatically distribute passage according to described idling-resource, and searched for, described in the passage acquisition of distribution, other programme informations that frequency is corresponding.
The embodiment of the present invention provides the method and device of a kind of Set Top Box tuning, in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；If it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, major applications can be cut off and the feature of idle most resource when broadcasting data and Set Top Box tuning for front end repeating query, use the mode that multithreading multichannel searches table simultaneously, multichannel PMT receives, become multiple shortens the tuning time, solve the present situation that current frequency, number of programs are increasing efficiently, shorten the project debugging time, be greatly improved Consumer's Experience sense, improve product competitiveness.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the embodiment of the present invention provides a kind of method of Set Top Box tuning；
Fig. 2 is the schematic flow sheet of the method for the another kind of Set Top Box tuning that the embodiment of the present invention provides；
Fig. 3 is the schematic flow sheet of the method for the another kind of Set Top Box tuning that the embodiment of the present invention provides；
Fig. 4 is the high-level schematic functional block diagram of the device of a kind of Set Top Box tuning that the embodiment of the present invention provides；
Fig. 5 is the system architecture diagram of a kind of Set Top Box that the embodiment of the present invention provides.
Detailed description of the invention
With embodiment, the embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.It is understood that specific embodiment described herein is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.It also should be noted that, for the ease of describing, accompanying drawing illustrate only the part relevant to the embodiment of the present invention rather than entire infrastructure.
It is the schematic flow sheet that the embodiment of the present invention provides a kind of method of Set Top Box tuning with reference to Fig. 1, Fig. 1.
As it is shown in figure 1, the method for described Set Top Box tuning includes:
Step 101, in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；
Concrete, after getting the frequency needing search, Set Top Box can distribute resource requirement automatically according to the idle condition of current Demod, Demux and newly-built multichannel thread simultaneously scans for program specific information/business information (Program Special Information/Service Information, the PSI/SI) table of other frequencies.
Newly-built every road is searched table thread and is being searched out Program Association Table (Program Association Table, PAT) after, can be according to PID Packet Identifier (the Program Map Table being resolved to, Packet Identifier, Program Map Table, PMT PID) and Demux on idle channel situation automatically distribute passage, for the Program Map Table (Program Map Table, PMT) searching this frequency difference program simultaneously.
Step 102, however, it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource.
Preferably, described if it is determined that current available free resource, then before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether not search frequency.
Preferably, however, it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread search for described in do not search the programme information that frequency is corresponding.
Concrete, as in figure 2 it is shown, judge whether not search frequency, the most then judge that resource is the most enough, the most then set up multichannel tuning circuit.
Preferably, described if it is determined that current available free resource, then before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether to have searched for frequency described in pinning；
If having searched for frequency described in locked, then search for, described in parsing, the programme information that frequency is corresponding；
Other programme informations having searched for frequency described in determining whether corresponding do not search out；
The most then perform if it is determined that current available free resource, then to search for and store corresponding programme information according to described idling-resource.
Preferably, described if it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in searched for the resource of different programme informations corresponding to frequency, then automatically distribute passage according to described idling-resource, and searched for, described in the passage acquisition of distribution, other programme informations that frequency is corresponding.
Concrete, pin frequency, it may be judged whether pin, if, then search for this frequency Program Association Table/SDT Service Description Table (Program Association Table/Service Description Table, PAT/SDT), it may be judged whether storage PMT PID does not searches, if, then judge demultiplexing, it is possible to writing Demux (Demultiplex, DMX) passage is the most enough, the most then search PMT according to the PMT PID parsed and resolve.
The embodiment of the present invention provides a kind of method of Set Top Box tuning, in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；If it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, major applications can be cut off and the feature of idle most resource when broadcasting data and Set Top Box tuning for front end repeating query, use the mode that multithreading multichannel searches table simultaneously, multichannel PMT receives, become multiple shortens the tuning time, solve the present situation that current frequency, number of programs are increasing efficiently, shorten the project debugging time, be greatly improved Consumer's Experience sense, improve product competitiveness.
It it is the high-level schematic functional block diagram of the device of a kind of Set Top Box tuning that the embodiment of the present invention provides with reference to Fig. 4, Fig. 4.
As shown in Figure 4, the device of described Set Top Box tuning includes:
Determine module 401, for in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；
Search module 402, for if it is determined that current available free resource, then searching for and store corresponding programme information according to described idling-resource.
Preferably, described device also includes:
First judge module, is used for judging whether not search frequency.
Preferably, described search module 402, it is used for:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread search for described in do not search the programme information that frequency is corresponding.
Preferably, described device also includes:
Second judge module, is used for judging whether to have searched for frequency described in pinning；
Parsing module, if having searched for frequency described in locked, has then searched for, described in parsing, the programme information that frequency is corresponding；
3rd judge module, other programme informations being used for having searched for frequency corresponding described in determining whether do not search out；
Perform module, for the most then performing if it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource.
Preferably, described search module, it is used for:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in searched for the resource of different programme informations corresponding to frequency, then automatically distribute passage according to described idling-resource, and searched for, described in the passage acquisition of distribution, other programme informations that frequency is corresponding.
The embodiment of the present invention provides the device of a kind of Set Top Box tuning, in the case of getting and searching for frequency, determine current idle resource, described idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include the resource of having searched for different programme informations corresponding to frequency described in can distribute multiple passage in current thread simultaneously scans for；If it is determined that current available free resource, then search for and store corresponding programme information according to described idling-resource, major applications can be cut off and the feature of idle most resource when broadcasting data and Set Top Box tuning for front end repeating query, use the mode that multithreading multichannel searches table simultaneously, multichannel PMT receives, become multiple shortens the tuning time, solve the present situation that current frequency, number of programs are increasing efficiently, shorten the project debugging time, be greatly improved Consumer's Experience sense, improve product competitiveness.
It is the system architecture diagram of a kind of Set Top Box that the embodiment of the present invention provides with reference to Fig. 5, Fig. 5.
In embodiment of the present invention example, make full use of multichannel hardware resource, open multichannel simultaneously and search table thread, the whole search time that the bottlenecks such as reduction hardware frequency locking cause is the longest, open multiple passage on Demux receives PMT simultaneously simultaneously simultaneously, at utmost reduce because of front end Round Robin transmission data and single cycle receipts table cause time-consuming, use both the above mechanism can largely to reduce tuning time-consuming simultaneously.
As shown in Figure 5, program search is packaged into Search module by native system, it is in intermediate layer, calls for upper strata, relies on the function that the layers such as module and Driver, SDK, OS, Hardware such as Flash, Database, Connect, DVB SI, SI Service provide.
The know-why of the embodiment of the present invention is described above in association with specific embodiment.These describe the principle being intended merely to explain the embodiment of the present invention, and can not be construed to the restriction to embodiment of the present invention protection domain by any way.Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the embodiment of the present invention, within these modes fall within the protection domain of the embodiment of the present invention.
Claims (10)
1. the method for a Set Top Box tuning, it is characterised in that described method includes:
In the case of getting and searching for frequency, determine that current idle resource, described idling-resource include
Can set up multichannel thread simultaneously scan for except described search for frequency in addition to the resource of other frequencies, and include working as
Can distribute on front thread multiple passage simultaneously scan for described in searched for different programme informations corresponding to frequency
Resource；
If it is determined that current available free resource, then search for and store corresponding program letter according to described idling-resource
Breath.
Method the most according to claim 1, it is characterised in that described if it is determined that the most available free
Resource, then, before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether not search frequency.
Method the most according to claim 2, it is characterised in that if it is determined that current available free resource,
Then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to other frequencies
Resource, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread
The programme information that frequency is corresponding is not searched described in search.
Method the most according to claim 1, it is characterised in that described if it is determined that the most available free
Resource, then, before searching for and store corresponding programme information according to described idling-resource, also include:
Judge whether to have searched for frequency described in pinning；
If having searched for frequency described in locked, then search for, described in parsing, the programme information that frequency is corresponding；
Other programme informations having searched for frequency described in determining whether corresponding do not search out；
The most then perform if it is determined that current available free resource, then search for according to described idling-resource and store
Corresponding programme information.
Method the most according to claim 4, it is characterised in that described if it is determined that the most available free
Resource, then search for and store corresponding programme information according to described idling-resource, including:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in have searched for frequency corresponding
The resource of different programme informations, then automatically distribute passage according to described idling-resource, and by distribution
Passage has searched for, described in obtaining, other programme informations that frequency is corresponding.
6. the device of a Set Top Box tuning, it is characterised in that described device includes:
Determine module, for, in the case of getting and searching for frequency, determining current idle resource, institute
State idling-resource include setting up multichannel thread simultaneously scan for except described search for frequency in addition to other frequencies
Resource, corresponding with including having searched for frequency described in can distribute multiple passage in current thread simultaneously scans for
The resource of different programme informations；
Search module, for if it is determined that current available free resource, then searches for according to described idling-resource and deposits
The corresponding programme information of storage.
Device the most according to claim 6, it is characterised in that described device also includes:
First judge module, is used for judging whether not search frequency.
Device the most according to claim 7, it is characterised in that described search module, is used for:
If it is determined that have can set up multichannel thread simultaneously scan for except described search for frequency in addition to other frequencies
Resource, then automatically distribute the resource of multichannel thread according to described idling-resource, and by described multichannel thread
The programme information that frequency is corresponding is not searched described in search.
Device the most according to claim 6, it is characterised in that described device also includes:
Second judge module, is used for judging whether to have searched for frequency described in pinning；
Parsing module, if having searched for frequency described in locked, has then searched for frequency corresponding described in parsing
Programme information；
3rd judge module, has searched for other programme informations corresponding to frequency not described in determining whether
Search out；
Perform module, for the most then performing if it is determined that current available free resource, then according to the described free time
Resource searching also stores corresponding programme information.
Device the most according to claim 9, it is characterised in that described search module, is used for:
If it is determined that have in current thread can distribute multiple passage simultaneously scan for described in have searched for frequency corresponding
The resource of different programme informations, then automatically distribute passage according to described idling-resource, and by distribution
Passage has searched for, described in obtaining, other programme informations that frequency is corresponding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410555.2A CN105979356B (en) | 2016-06-12 | 2016-06-12 | A kind of method and device of set-top box tuning |
| PCT/CN2017/087647 WO2017215515A1 (en) | 2016-06-12 | 2017-06-09 | Channel search method and apparatus for use in set top box |
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| CN201610410555.2A CN105979356B (en) | 2016-06-12 | 2016-06-12 | A kind of method and device of set-top box tuning |
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| CN105979356B CN105979356B (en) | 2019-01-25 |
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| CN107172480A (en) * | 2017-05-26 | 2017-09-15 | 青岛海信电器股份有限公司 | The data transmission processing method and device of demultiplexer |
| CN107396174A (en) * | 2017-05-31 | 2017-11-24 | 青岛海信电器股份有限公司 | A kind of code stream demodulation method and TV |
| CN107147922A (en) * | 2017-06-20 | 2017-09-08 | 深圳市茁壮网络股份有限公司 | Frequency resource allocation methods and frequency resource management server |
| CN107147922B (en) * | 2017-06-20 | 2019-06-18 | 深圳市茁壮网络股份有限公司 | Frequency point resource allocation methods and frequency point resource management server |
| CN107295397A (en) * | 2017-06-27 | 2017-10-24 | 金华知产婺源信息技术有限公司 | A kind of channel search method and device for shortening the tuning time |
| CN109788342A (en) * | 2019-01-30 | 2019-05-21 | 四川长虹电器股份有限公司 | A kind of device and method of digital television devices quick search program |
| CN113596541A (en) * | 2021-07-30 | 2021-11-02 | 深圳市杰科数码有限公司 | Set top box, user operation-free installation method thereof and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017215515A1 (en) | 2017-12-21 |
| CN105979356B (en) | 2019-01-25 |
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