CN102595214A - Method for offering digital TV program correlation recommendation - Google Patents
Method for offering digital TV program correlation recommendation Download PDFInfo
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- CN102595214A CN102595214A CN2012100562349A CN201210056234A CN102595214A CN 102595214 A CN102595214 A CN 102595214A CN 2012100562349 A CN2012100562349 A CN 2012100562349A CN 201210056234 A CN201210056234 A CN 201210056234A CN 102595214 A CN102595214 A CN 102595214A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005314 correlation function Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
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- 238000003780 insertion Methods 0.000 claims description 3
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- 241001503485 Mammuthus Species 0.000 description 5
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Abstract
The invention provides a method for offering digital TV program correlation recommendation. The method comprises the steps: the correlation among programs at digital TV end by the cloud computing model is calculated to obtain the correlation program list of each program; along with the broadcasting of each program of each channel, the correlation program list of the currently broadcasted program is broadcasted through the downstream channel of the channel, in this way, a set top box obtains program recommended service and is capable of receiving and displaying the correlation program list of the currently broadcasted program.
Description
Technical field
The present invention is the program navigating technology of DTV, relates in particular to the method for recommending to be associated with its current watch programs program to spectators.
Background technology
Television transmission technology has been accomplished the upgrading from simulation-to-digital at present basically, like the DVB-T of the DVB-S technology of the DVB-T technology of wired DTV, satellite television and terrestrial wireless broadcast TV and DMB-T/H technology etc.The outstanding progress of the various television systems in numeral back is that bearing capacity increases considerably.For example original PAL analog catv, the frequency of every 8MHz frequency band can only transmit the TV programme of a channel.After digitlization, transmittability has obtained large increase, for example adopts 64QAM modulation back to surpass 38Mbps for effective transmittability of digital signal.But after the digitlization of video frequency program information source, a cover MPEG-2 broadcast level SD program generally takies the 6-8Mbps transmission bandwidth, and this just means that an original channel can transmit 4-6 road program.Further, if adopt H.264 coding, every cover SD program accounts for the 1.5Mbps bandwidth, and each frequency can transmit the program more than 20 tunnel.
This program platform tricks that makes television digitization provided afterwards increases considerably, and the various places cable digital TV generally provides the program about 100 covers at present, selects for spectators provide more rating.But this has also increased the difficulty that spectators select program: the past generally is to offer selection through TV when TV station's tricks is few; But now too much platform tricks makes that the difficulty of consulting the TV newspaper is very big, buys the TV newspaper again to such an extent as to almost have no talent now; The common program mode of searching is the content that current each programs of traversal is broadcasting at present; Running into programs of interest just appreciates; But it is quite consuming time traveling through nearly hundred programs, but also probably because factors such as commercial breaks are missed own programs of interest.Therefore hope to utilize information technology to come, improve the efficient that spectators search program of interest for spectators provide program commending.
Summary of the invention
The purpose of this invention is to provide the related method of recommending of a kind of digital television program.
The objective of the invention is to realize, carry out the association of each channel EPG that broadcasts at the DTV head end and calculate, form the correlating programs tabulation of each program by following mode; Following program to broadcast issues; Appear at digital TV terminal, realize the related recommendation of program, concrete steps are following:
1) obtains the EPG of each channel, comprise following broadcast items and time list;
2) carry out between program related calculating,, calculate its broadcast time after broadcast items and its correlation in each channel, therefrom select the correlating programs of high this program of program formation of correlation degree to tabulate promptly for each program;
3) in program broadcast process,,, broadcast the correlating programs tabulation of this program synchronously according to the current program that broadcasts for each channel;
4) digital TV terminal receives the correlating programs tabulation of this program simultaneously when certain channel of rating, thereby obtains title, broadcast channel and the broadcast time of its correlating programs;
5) with the number of characters of the maximum common substring of programm name product divided by these 2 programm name number of characters, obtain estimating the correlation function of these 2 program degrees of correlation, concrete steps are following:
(1) removes the appended insertion of brackets in rear portion with numeral, obtain the programm name character string from the programm name information of EPG;
(2) find out broadcast earlier programm name with after broadcast the maximum common substring of programm name;
(3), broadcast program after obtaining for the correlation function value of broadcasting program earlier the product of the number of characters of the common substring of maximum divided by 2 programm name number of characters.
The formation of correlating programs tabulation is that each program all has independently correlating programs tabulation, comprises title, broadcast channel name, broadcast time, channel service identifier service_id and the channel transmission flow identifier transport_stream_id of each correlating programs.
When finishing, show programm name, place channel and the broadcast time of each program in the correlating programs tabulation of this program at current program automatically, the guiding spectators continue to watch related-program, and content comprises:
1) when showing the correlating programs tabulation, allows certain program in spectators' selective listing;
2) spectators judged whether to play according to the broadcast time of this program in the correlating programs tabulation, if broadcast, then directly switched frequency, this channel of rating according to its corresponding channel service identifier and channel transmission flow identifier in the linked list; If do not broadcast as yet, then submit to its corresponding channel service identifier, channel transmission flow identifier and broadcast time to set up the rating reservation; STB switches to institute's subscription channel according to channel service identifier and channel transmission flow identifier automatically when arriving broadcast time.
Description of drawings
Fig. 1 is the EPG format chart of Jinan synthesizer channel and Jinan channel for TV plays and movies;
Fig. 2 is correlating programs tabulation figure.
Embodiment
Explanation at length below with reference to Figure of description method of the present invention being done.
Every spectators have the appreciation interest of oneself, can preference appreciate certain type of specific program.Especially spectators when appreciating series performance such as TV play, often hope and can appreciate continuously.Therefore work as spectators and watch current program; Often mean that he is interested in such program, can find relative program according to current program like this, recommend spectators; Supply it therefrom to select, and needn't travel through whole channels again at the program of having watched that current program continued is watched.
Because the program platform that is provided cover quantity is big; The program of every programs is numerous, and the operand that carries out related calculating is huge, and the computing capability of digital TV terminal STB is limited; More lack enough memory spaces, therefore be difficult in the enterprising line correlation property calculating of STB.Utilize the cloud computing pattern for this reason; There is the DTV head-end system to bear related calculating of program and store tasks; Follow this channel program stream down going channel to broadcast the correlating programs tabulation of its current program according to the broadcast process of each channel, make the user terminal STB only need the program receiving recommendation service to get final product.
In order to realize the recommendation of program, at first need obtain the EPG (Electronic Program Guide) of each channel program that broadcasts.The EPG of each channel comprises the title and the time of the following broadcast items of this channel.
Then to each program of each channel as current broadcast items, in each channel, be later than in the program of its broadcast time and seek the program that is associated with it, form correlating programs and tabulate.Owing among the EPG programm name and broadcast time only are provided; Program is related mainly to be calculated through the correlation of title: with the maximum of programm name jointly the number of characters of substring divided by the product of these 2 programm name number of characters; Obtain estimating the correlation function of these 2 program degrees of correlation, concrete steps are following:
1) removes the appended insertion of brackets in rear portion with numeral, obtain the programm name character string from the programm name information of EPG;
2) find out broadcast earlier programm name with after broadcast the maximum common substring of programm name;
3), broadcast program after obtaining for the correlation function value of broadcasting program earlier the product of the number of characters of the common substring of maximum divided by 2 programm name number of characters.
Select the correlating programs that the highest program set of correlation function value forms this program, form its correlating programs tabulation.In order to make the information that spectators can more clear understanding correlating programs, the informational needs of each correlating programs comprises programm name, broadcasts channel designation and broadcast time in the correlating programs tabulation.And can change platform with this program of rating behind the correlating programs in order to select spectators, also to be filled into channel service identifier service_id and the channel transmission flow identifier transport_stream_id of place channel in this digital television system in the correlating programs information for each correlating programs in the correlating programs tabulation.
Said method is better for the relevance of excavating series performances such as TV series, but for some stationary column, difficulty is excavated character column close with it.For stationary column, increase program attribute information for this reason, when carrying out the related calculating of program,, not only carry out the programm name association, also carry out the programme attribute association for the program that programme attribute is arranged.
All formed independently correlating programs tabulation for whole programs like this.Because the correlating programs of each program tabulation merging data amount is very big, is not suitable for once providing to STB.Therefore adopt the correlating programs tabulation of following the program broadcast that current program is provided successively.
When program broadcasts; Head-end system is followed the broadcast process of each channel in each frequency; Periodically form MPTS to the correlating programs of current broadcast items tabulation and issue, with the program stream of this each channel of frequency carry out multiplexing, through the laggard capable RF broadcast of ovennodulation.
Spectators not only receive the program stream of the channel of seeing when watching DTV, receive the MPTS of the correlating programs tabulation under this channel place frequency simultaneously, through obtaining the correlating programs tabulation of current program after resolving.In the process of watching, spectators can comprise the correlating programs title, broadcast channel designation and broadcast time through remote controller controller top box programs recommended the appearing in the correlating programs tabulation, supply spectators to select.In order to realize the positive guide to spectators, before current playing programs finished, STB presented the correlating programs tabulation automatically.
When the correlating programs tabulation showed, spectators can therefrom select certain program.If selected program has begun to broadcast, then STB directly switches to this channel according to channel service identifier service_id and channel transmission flow identifier transport_stream_id.If selected program does not begin to broadcast as yet, then STB is set up the reservation of this program is watched, promptly notes broadcast time, channel service identifier service_id and channel transmission flow identifier transport_stream_id in this programme information.When arriving reservation during broadcast time, STB automatically switches to the channel of being preengage and watches.
Below with practical implementation case explanation the present invention.
In a cable TV station; Broadcast the program of 100 channels altogether, wherein 4 channels such as Jinan synthesizer channel broadcast at frequency 626MHz, and Transport_stream_id is 6; Service_id is 603; The Jinan channel for TV plays and movies broadcasts at frequency 658MHz, and Transport_stream_id is 23, and Service_id is 2301.
At first obtain the EPG information of each channel that broadcasts, Fig. 1 is the EPG of a kind of Jinan synthesizer channel and Jinan channel for TV plays and movies, but the EPG form is not limited to Fig. 1.The title and the broadcast time that comprise each program among the EPG of each channel.
For the Jinan synthesizer channel program " dare-to-die corps (2) " that 19:33 broadcasted on August 22nd, 2011, need set up the programs recommended tabulation that during it broadcasts, needs, below be concrete search and constructive process:
1) bracket and the numeral of removal broadcast items " dare-to-die corps (2) " back obtain programm name " dare-to-die corps ", and number of characters is 3;
2) each channel calculated correlation function with this program names respectively with the program names of interior broadcast in 3 hours after on August 22nd, 2011 19:33, and promptly maximal phase is with the length of substring.Like the Jinan synthesizer channel program " dare-to-die corps (3) " that 19:58 broadcasted on August 22nd, 2011; Bracket and the numeral of removing the back obtain programm name " dare-to-die corps "; With the maximal phase of broadcast items be " dare-to-die corps " with substring, then their correlation function value is 3; The Jinan channel for TV plays and movies program " mammoth dare-to-die corps (5) " that 20:05 broadcasted on August 22nd, 2011; Bracket and the numeral of removing the back obtain programm name " mammoth dare-to-die corps "; With the maximal phase of broadcast items be " dare-to-die corps " with substring, then their correlation function value is 3;
3) the achievement of the correlation function value between 2 programs divided by these 2 programm name number of characters, obtain the correlation function between these 2 programs: " dare-to-die corps (2) " are 3/ (3*3)=0.333 with the correlation function of " dare-to-die corps (3) "; " dare-to-die corps (2) " are 3/ (3*5)=0.2 with " mammoth dare-to-die corps (5) " correlation function;
4) be later than 3 hours broadcast times of this broadcast items to all and select partial programme from high to low according to the correlation function value with interior program; And the channel service identifier and the channel transmission flow identifier information of adding the channel broadcast; The tabulation of formation correlating programs, as shown in Figure 2.
The Jinan synthesizer channel is during on August 22nd, 2011,19:33 to 19:58 broadcasted " dare-to-die corps (2) ", and the DTV head-end system is packaged into TS stream to the correlating programs of this program tabulation (table 2), follows Jinan synthesizer channel place frequency cocycle to broadcast.
When STB is watched the Jinan synthesizer channel during this period, be received in the correlating programs tabulation on the same frequency simultaneously.Can control this correlating programs tabulation through remote controller and show that at video screen displaying contents mainly comprises program names, channel name and broadcast time.
Spectators can therefrom select some programs.If spectators have selected Jinan channel for TV plays and movies " mammoth dare-to-die corps (5) " when 19:50; Because this program has begun to play; STB is just inquired about the transport_stream_id and the service_id of this program place channel in the correlating programs tabulation, carries out channel then and switches.If spectators have selected Jinan channel for TV plays and movies " mammoth dare-to-die corps (6) " when 19:50; Because this program does not begin to play as yet, STB is then watched according to the exploitation reproduction time of this program in the correlating programs tabulation, the transport_stream_id and the service_id foundation reservation of place channel; When arriving subscription time, then carry out the channel switching according to transport_stream_id in the reservation and service_id.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (3)
1. the related method of recommending of a digital television program; It is characterized in that carrying out the association calculating of each channel EPG that broadcasts at the DTV head end; Form the correlating programs tabulation of each program, follow program to broadcast and issue, appear at digital TV terminal; Realize the related recommendation of program, concrete steps are following:
1) obtains the EPG of each channel, comprise following broadcast items and time list;
2) carry out between program related calculating,, calculate its broadcast time after broadcast items and its correlation in each channel, therefrom select the correlating programs of high this program of program formation of correlation degree to tabulate promptly for each program;
3) in program broadcast process,,, broadcast the correlating programs tabulation of this program synchronously according to the current program that broadcasts for each channel;
4) digital TV terminal receives the correlating programs tabulation of this program simultaneously when certain channel of rating, thereby obtains title, broadcast channel and the broadcast time of its correlating programs;
5) with the number of characters of the maximum common substring of programm name product divided by these 2 programm name number of characters, obtain estimating the correlation function of these 2 program degrees of correlation, concrete steps are following:
(1) removes the appended insertion of brackets in rear portion with numeral, obtain the programm name character string from the programm name information of EPG;
(2) find out broadcast earlier programm name with after broadcast the maximum common substring of programm name;
(3), broadcast program after obtaining for the correlation function value of broadcasting program earlier the product of the number of characters of the common substring of maximum divided by 2 programm name number of characters.
2. method according to claim 1; The formation that it is characterized in that the correlating programs tabulation is that each program all has independently correlating programs tabulation, comprises title, broadcast channel name, broadcast time, channel service identifier service_id and the channel transmission flow identifier transport_stream_id of each correlating programs.
3. method according to claim 1; It is characterized in that at current program when finishing; Automatically show programm name, place channel and the broadcast time of each program in the correlating programs tabulation of this program, the guiding spectators continue to watch related-program, and content comprises:
1) when showing the correlating programs tabulation, allows certain program in spectators' selective listing;
2) spectators judged whether to play according to the broadcast time of this program in the correlating programs tabulation, if broadcast, then directly switched frequency, this channel of rating according to its corresponding channel service identifier and channel transmission flow identifier in the linked list; If do not broadcast as yet, then submit to its corresponding channel service identifier, channel transmission flow identifier and broadcast time to set up the rating reservation; STB switches to institute's subscription channel according to channel service identifier and channel transmission flow identifier automatically when arriving broadcast time.
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| CN102868929A (en) * | 2012-08-31 | 2013-01-09 | 深圳市龙视传媒有限公司 | Video display method and system, and digital television terminal |
| CN103501449A (en) * | 2013-10-08 | 2014-01-08 | 十分（北京）信息科技有限公司 | Method and device for recommending video source associated with television program |
| CN103747292A (en) * | 2014-01-10 | 2014-04-23 | 北京酷云互动科技有限公司 | Television program-associated application program recommending method and recommending device |
| CN103888821A (en) * | 2014-03-17 | 2014-06-25 | 深圳市九洲电器有限公司 | High-definition program switching method and system |
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| CN102868929A (en) * | 2012-08-31 | 2013-01-09 | 深圳市龙视传媒有限公司 | Video display method and system, and digital television terminal |
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| CN104581226A (en) * | 2014-12-12 | 2015-04-29 | 乐视致新电子科技（天津）有限公司 | Method and device for recommending programs by aiming at current live stream |
| CN104954821A (en) * | 2015-06-24 | 2015-09-30 | 北京酷云互动科技有限公司 | Program correlation calculating method and system |
| CN105898590A (en) * | 2015-12-10 | 2016-08-24 | 乐视网信息技术（北京）股份有限公司 | Media content play method, device and system |
| CN105721925A (en) * | 2016-01-27 | 2016-06-29 | 天脉聚源（北京）科技有限公司 | Method and device for recommending relevant video |
| CN105898412A (en) * | 2016-04-26 | 2016-08-24 | 湖北睛彩视讯科技有限公司 | Internet tv cloud platform |
| CN106060602A (en) * | 2016-07-08 | 2016-10-26 | 腾讯科技（深圳）有限公司 | Data playing method and playing terminal |
| CN106060602B (en) * | 2016-07-08 | 2020-07-03 | 腾讯科技（深圳）有限公司 | Data playing method and playing terminal |
| CN106210862A (en) * | 2016-07-21 | 2016-12-07 | 青岛海信传媒网络技术有限公司 | Method for processing program information and device |
| CN107124633A (en) * | 2017-04-11 | 2017-09-01 | 青岛海信电器股份有限公司 | A kind of television channel screening technique and DTV |
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