CN1825943A - Viewing rate data automatic acquiring and statistical system for digital TV system and method thereof - Google Patents
Viewing rate data automatic acquiring and statistical system for digital TV system and method thereof Download PDFInfo
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Abstract
This invention discloses an automatic collection and statistic system and a method for audience rating data of the digital TV system including a data server, a data collecting module, a data receiving module and a data statistic module, in which, the data server is placed at the front of a two-way wire TV broadband net, the data collecting module is in the set-top box of the user used in collecting the Ratings data timely and receiving monitor data from the server and transferring the data to the server, the data receiving module is in the data server used in receiving the data transferred to the server from the collecting module, the data statistic module finishes the statistics to the Ratings to get the audience rating, which can collect Rating data from the set-top box of the terminal users automatically, transmit data via a two-way wire TV network and calculate the rating data at the server end to get accurate Rating data of digital TV programs.
Description
Technical field
The present invention relates to the digital television broadcasting field, relate in particular to a kind of viewing rate data automatic acquiring, statistical system and method that realizes digital television system.
Background technology
Digital Television is the new technology of radio and television, and it adopts digital signal to replace analog signal to come transmitting television program.Compare with the simulation cable television system, a main distinction in transmission is that frequency is only broadcast a cover simulation TV programme signal in the analog catv system, and frequency can be broadcast the digital television program signal of many covers after multiplexing in the digital television system.Promptly in digital television system, a channel of simulated television is divided into several sub-channels (among the present invention should sub-channel be called digital channel) again, each sub-channel transmits the digital TV programme of a cover, and this makes the TV programme that can transmit in the digital television system become the increase of several times.Simultaneously, in digital television system, the user need use set-top box to receive the digital television program of being broadcast by front end.
In China, the broadcasting and TV system has begun to carry out the conversion work to digital television system by the simulated television system, and applied in the market audience rating investigating technology is all at the simulated television system development, because digital television system exists huge difference technically with the simulation television system, these technique for investigation can't be used for the digital television system of various standards is carried out program audience rating data acquisition and statistics at all.Present audience rating investigating technology mainly has the following disadvantages: (1) is only applicable to the audience rating investigating of simulated television system, does not support the information of the digital television system of various standards is handled; (2) gathering viewing-data needs special hardware, and this equipment must with could operate as normal after the inner line related of television set is connected, bring very big inconvenience to the user, the enforcement that has influenced the audience rating investigating technology is with universal; (3) most systems are by third party's network (as telephone network or the Internet) passback data, and not only cost height, and transmission quality is subject to the ability that the third party provides service.
Therefore, need a kind of brand-new viewing rate data automatic acquiring, statistical system and method, be used for digital television system is carried out the data acquisition and the statistics of audience ratings.In China, there has been the cable TV network in a lot of places to have the ability that the IP broadband network service is provided through after the bidirectional rebuilding, this part network with bearer IP service in the cable TV network among the present invention is called cable television broadband network.The present invention has used the bidirectional characteristic of cable TV network in the processing procedure that realizes the digital television system audience information.
Summary of the invention
The object of the present invention is to provide a kind of viewing rate data automatic acquiring, statistical system and method for the digital television system based on the two-way cable TV network network.System and method provided by the invention can be gathered viewing-data automatically from terminal use's set-top box, transmit data by the two-way cable TV network network, and at the data server end viewing-data is added up, draw Exact Number TV program audience rating data.
For achieving the above object, the invention provides a kind of viewing rate data automatic acquiring, statistical system of digital television system, this system comprises data server, data acquisition module, data reception module and data statistics module, described data server is positioned at the front end of OUBN broadband networks, and database wherein is used for preserving user's viewing-data; Data acquisition module is positioned at user's the built-in bi-directional set-top box of Cable Modem, is used for gathering in real time user watched data, receives the Monitoring Data from server, and the viewing-data that transmits the user is given data server; Data reception module is positioned at data server, is used to receive the data that data acquisition module sends data server to; Data statistics module is arranged in but is not limited to data server, finishes the statistics to viewing-data, and draws audience ratings.
For realizing the viewing rate data automatic acquiring and the statistics of digital television system TV programme, the present invention also provides a kind of viewing rate data automatic acquiring, statistical method of digital television system, and this method step is as follows:
A. be connected based on the two-way of IP technology with the foundation of front end data server by built-in Cable Modem after set-top box powers up and starts, and automatic log-on data acquisition module;
B. the data acquisition module in the subscriber computer top box reads current digital channel information, and this information encoded according to predetermined form as viewing-data together with user ID, and the data after will encode by the back channel transfer to the data server that is positioned at the cable television broadband network front end;
C. after data server receives the data of set-top box transmission, go out user ID and digital channel information according to predetermined format from extracting data, the time is kept in the viewing-data table corresponding with this user ID together with digital channel information to start with the current machine of the data server time on date then;
D. after the user changes digital channel, the automatic new viewing-data of driving data acquisition module collection, send data server behind the coding to, after data server receives these data, at first the time on current machine date is watched that as the user concluding time of previous digital channel writes in this user's the viewing-data table, generate new rating record then, until user's closure plane top box;
E. upgrade digital channel program information table in the data server, data statistics module is shown according to this, according to predefined computing formula user watched tables of data is added up, and draws the audience rating data of program or digital channel.
In the aforesaid step, but the equal independent operating of data acquisition module and data statistics module, and two module operations separately are not subjected to the other side's constraint each other, can add up on the same day such as the data that gather the previous day.The purpose of doing like this is the accuracy that can guarantee the time started and the concluding time of each program correspondence in the digital channel program information table, thereby can count audience ratings accurately.
In the aforesaid step, user ID can be the MAC Address of fixed IP addresses or Cable Modem, also can be the card number of the IC-card corresponding with set-top box, also can be a sign that is kept at the unique differentiation of the energy user in the set-top box in advance.
In the aforesaid step, digital channel information is meant the indispensable information of a digital channel of the unique identification of energy, the invention provides the methods of two kinds of structure digital channel information, and is as described below respectively:
1) digital channel information comprises two parts content, a part is set-top box employed frequency of tuner when normally receiving this digital channel code stream, usually to be used to broadcast the frequency of the frequency of this digital channel code stream be consistent for this frequency and front end, and this frequency numerical value can obtain by the tuning control chip of set-top box; Another part is the program code of this digital channel, can be the program code field contents in the pat table in the current multiplex stream (using this program code during set-top box search program), it also can be the numbering that front end is distributed to each program in the current multiplex stream, the corresponding programs of each program code utilizes program code to identify a programs uniquely in the multiplexing program stream that same frequency transmits.Thereby, in digital television system, tuned frequency and program code can be determined a digital channel uniquely, the present invention constructs one of digital channel information approach and just is to use tuned frequency and program code as digital channel information, digital channel information can be expressed as＜tuned frequency in this method, program code〉form.
2) all programs that digital TV front-end is broadcasted are distributed overall program coding unitedly, and should be inserted in the middle of the code stream by overall situation program coding.The overall program coding of every suit program correspondence is unique, thereby overall program coding can be used as the identity card of program, and the overall program coding that will have this attribute can uniquely identify a programs as digital channel information.
For example, in some digital television system, front end carries out overall situation unified distribution to the content of the program code field in the pat table, promptly the program in all multiplex stream is unified numbering, so, each program code just can a corresponding unique digital channel, singly is that program code just can be as digital channel information in this case, and here the program code in the pat table just belongs to a kind of overall program and encodes.
In the aforesaid step, owing to writing down time started and the concluding time that the user watches certain digital channel in the user watched table, and therefore the time started and the concluding time of writing down the concrete program of each digital channel broadcast in the digital channel program information table associate the audience ratings that just can accurately count each program in each digital channel with this two classes table.
The present invention also provides a kind of method of monitor user ' set-top box state, this method can be used for judging whether closure plane top box of user, the process of this method is such: data server at set intervals (this time interval can by default) send one to designated user and detect packet, if receive replying of subscriber computer top box, illustrate that set-top box just in use; If do not receive replying of subscriber computer top box, illustrate that the user has closed set-top box, then data server as the user watched concluding time, and is recorded in current machine time during database table writes down accordingly.
Description of drawings
Fig. 1 is digital television system viewing rate data automatic acquiring involved in the present invention, the embodiment block diagram of statistical system;
Fig. 2 is the workflow diagram of data acquisition module and receiver module among the present invention;
Fig. 3 is the workflow diagram that data server is carried out monitoring among the present invention to acquisition module;
Fig. 4 is the workflow diagram of data statistics module among the present invention;
Fig. 5 determines among the present invention that the user specifically watches program and the process of watching the time span institute using method of program;
Fig. 6 is an embodiment of the coded format of Frame that data acquisition module sends among the present invention.
Embodiment
With reference to figure 1, embodiment block diagram for system involved in the present invention, dispose data server 101 at the cable TV broadband network front end, data reception module and statistical module all are included in the data server among this embodiment, be used for receiving the viewing-data of gathering from the data acquisition module that is positioned at 104 places, and utilize these data statisticss to go out audience ratings.Wired broadband network front end 102 is meant the IP broadband networks backbone layer present position after bidirectional rebuilding, and data server 101 can be positioned at this place.103 are meant through improved and can transmit the line transmission system that digital television program can transmit the cable TV network of bidirection internet data again.104 expressions are positioned at the built-in set-top box of Cable Modem at user place, and data acquisition module is included in wherein, is used to gather this user's viewing-data.
The viewing rate data automatic acquiring of digital television system provided by the invention, statistical method comprise the steps:
A. be connected based on the two-way of IP technology with the foundation of front end data server by built-in Cable Modem after set-top box powers up and starts, and automatic log-on data acquisition module;
B. the data acquisition module in the subscriber computer top box reads current digital channel information, and this information encoded according to predetermined form as viewing-data together with user ID, and the data after will encode by the back channel transfer to the data server that is positioned at the cable television broadband network front end;
C. after data server receives the data of set-top box transmission, go out user ID and digital channel information according to predetermined format from extracting data, the time is kept in the viewing-data table corresponding with this user ID together with digital channel information to start with the current machine of the data server time on date then;
D. after the user changes digital channel, the automatic new viewing-data of driving data acquisition module collection, send data server behind the coding to, after data server receives these data, at first the time on current machine date is watched that as the user concluding time of previous digital channel writes in this user's the viewing-data table, generate new rating record then, until user's closure plane top box;
E. upgrade digital channel program information table in the data server (programm name of this table record each digital channel broadcast items on the same day and corresponding date and time information, as time started and concluding time), data statistics module is shown according to this, according to predefined computing formula user watched tables of data is added up, draw the audience rating data of program or digital channel.
At least comprise following a few class database table in the Database Systems of the present invention:
A) program information table of digital channel broadcast items is called for short the digital channel program information table.The corresponding such table of each digital channel, this table are including but not limited to the field that following content can be provided:
Programm name: the title of the program that broadcasts at this channel
Program zero-time: the time that program begins to broadcast
Program end time: program finishes the time of broadcast
B) the viewing-data table related with the user who is used as the data acquisition object, the corresponding such table of each user, this table are including but not limited to the field that following content can be provided:
Tuned frequency: the employed frequency of tuner when referring to that set-top box receives current program
Program code: refer to program program code in the pat table in current frequency multiplex stream that the user watches
The rating zero-time: the user begins to watch the time of this digital channel, and this time value is taken from the machine time of data server
The rating concluding time: the time that this digital channel is watched in user's end, this time value is taken from the machine time of data server
C) audience rating statistical table, the corresponding such table of each digital channel, this table are including but not limited to the field that following content can be provided:
Programm name: be used for representing that this shows the title of the broadcast items of pairing digital channel
Program audience rating: the audience ratings of representing this program
D) digital channel information is to the mapping table of digital channel title, and the record in this table needs input in advance, if the channel arrangement has adjustment, needs to upgrade synchronously this table content, and this table is including but not limited to the field that following content can be provided:
Tuned frequency: the employed frequency of tuner when referring to that set-top box receives current program
Program code: refer to program program code in the pat table in current frequency multiplex stream that the user watches
Digital channel title: digital channel information＜tuned frequency, program code〉title of pairing digital channel, as＜363MHz, 2〉corresponding digital channel title is Guangdong satellite TV
With reference to figure 2, the workflow diagram for data acquisition module among the present invention and receiver module is described in detail as follows:
1. the user opens set-top box, and set-top box normally starts back trigger data acquisition module work, and with sending data server to behind the digital channel information of current digital channel and the user ID coding, as the viewing-data that sends first;
2. if the user changes digital channel, then continue execution in step 3., otherwise rest on this step;
3. data acquisition module is transferred to data server after with new digital channel information and user ID coding;
4. data server receives the audience information table that data is deposited after the data in the user;
5. then jump to step 6. as if user's closure plane top box, otherwise jump to step 2.;
6. finish.
Above-mentioned steps 2. in, the user changes behind the digital channel can gather up-to-date viewing-data by automatic driving data acquisition module, and sends to data server according to the predetermined format coding.
Because the behavior of user's closure plane top box may occur in any time, in the actual conditions, data acquisition module has just quit work behind user's closure plane top box, data server one end provides corresponding method to come the state of monitor user ' set-top box among the present invention, and the concluding time of the last program of watching of generation user, only in this way operation could guarantee the integrality of viewing-data.
With reference to figure 3, be the workflow diagram of data server among the present invention to data acquisition module execution observation process, be described in detail as follows:
1. data server sends to the subscriber computer top box at interval at regular intervals and detects packet;
2. if set-top box receives the detection packet, the current viewing-data of data collecting module collected then is together with sending data server to behind the user ID coding;
3. data server judges whether to receive the reply data bag of data acquisition module in the subscriber computer top box, then jumps to step 4. as if receiving, otherwise jumps to step 5.;
4. analyze the reply data bag, from packet, extract active user's audience information, the last item record in the user watched tables of data of this information of same is compared, if the digital channel information of the two is identical, then jump to step 1., otherwise jump to step 1. after upgrading the viewing-data table record;
5. with concluding time time on machine date of current data server, and add in the database table respective record as the last program of watching of user.
Aforesaid step 3. in, the purpose of analyzing the reply data bag is whether the data acquisition module work that detects in the subscriber computer top box normal.
With reference to figure 4, the workflow diagram for data statistics module among the present invention is described in detail as follows:
1. by the program information table of Systems Operator's each digital channel of typing in data server;
2. be kept in the audience rating statistical table according to the various indicator-specific statistics audience ratings of arranging in advance, and with the result.
With reference to figure 5, for determining user program of specifically watching and the process of watching the time span institute using method of program among the present invention:
1. utilize digital channel information to determine the pairing digital channel title of current record in the user watched table to the mapping table of digital channel title;
2. find the associated digital channel program information table of digital channel title corresponding with current record in the user watched tables of data;
3. judge that the broadcast time which program is arranged in the program information table dropped in the rating zero-time and rating concluding time section of current note in the viewing-data table, so just can determine the user has watched which program of this digital channel.
All records in the user watched tables of data are carried out aforesaid operation just can count the user and watched which program and the time span of watching each program.All user watched tables of data are carried out above-mentioned processing, just can obtain the audience rating statistical data of each program.
With reference to figure 6, be an embodiment of the coded format of Frame that data acquisition module sends among the present invention.
As mentioned above, the process data (watching the time span of certain program as the user) that produces in calculating the process of audience ratings both can be kept in the corresponding database table according to the needs of system design, also can not preserve.
Described above is an embodiment who comparatively optimizes of the present invention, and within the scope of the invention, the foregoing description can also have a variety of variations.For example can only write down the programme information of all digital channels with a program information table, only write down all user watched data with a user watched tables of data, only write down the program audience rating data of all digital channels with an audience rating statistical table, enforcement may not necessarily reach the purpose of optimization system only like this.
To announcement of the present invention,, do not break away from guidance of the present invention and scope according to above-mentioned, the present invention is made various changes and variation is obviously for those skilled in the art.Therefore, the present invention attempts to be included in various variations and the change in the equivalence techniques scope of the present invention.
Claims (9)
1, a kind of viewing rate data automatic acquiring of digital television system, statistical system, it is characterized in that comprising data server, data acquisition module, data reception module and data statistics module, described data server is positioned at the front end of OUBN broadband networks, and database wherein is used for preserving user's viewing-data; Data acquisition module is positioned at user's the built-in bi-directional set-top box of Cable Modem, is used for gathering in real time user watched data, receives the Monitoring Data from server, and the viewing-data that transmits the user is given data server; Data reception module is positioned at data server, is used to receive the data that data acquisition module sends data server to; Data statistics module is arranged in but is not limited to data server, finishes the statistics to viewing-data, and draws audience ratings.
2, a kind of viewing rate data automatic acquiring of digital television system, statistical method is characterized in that comprising the steps:
A. be connected based on the two-way of IP technology with the foundation of front end data server by built-in Cable Modem after set-top box powers up and starts, and automatic log-on data acquisition module;
B. the data acquisition module in the subscriber computer top box reads current digital channel information, and this information encoded according to predetermined form as viewing-data together with user ID, and the data after will encode by the back channel transfer to the data server that is positioned at the cable television broadband network front end;
C. after data server receives the data of set-top box transmission, go out user ID and digital channel information according to predetermined format from extracting data, the time is kept in the viewing-data table corresponding with this user ID together with digital channel information to start with the current machine of the data server time on date then;
D. after the user changes digital channel, the automatic new viewing-data of driving data acquisition module collection, send data server behind the coding to, after data server receives these data, at first the time on current machine date is watched that as the user concluding time of previous digital channel writes in this user's the viewing-data table, generate new rating record then, until user's closure plane top box;
E. upgrade digital channel program information table in the data server, data statistics module is shown according to this, according to predefined computing formula user watched tables of data is added up, and draws the audience rating data of program or digital channel.
3, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method, the make that it is characterized in that described digital channel information is: with tuned frequency and program code as digital channel information, tuned frequency wherein is meant the employed frequency of tuner when set-top box normally receives current digital channel code stream, and program code is meant the content of the program code field in the pat table of current multiplex stream or the numbering that front end is distributed to each program in the current multiplex stream.
4, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method, the make that it is characterized in that described digital channel information is: be the unique program coding of each program distribution overall situation, should encode, and be inserted in the middle of the code stream as digital channel information.
5, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method is characterized in that will preserving the database table that following content is provided in the described data server:
Digital channel program information table: title, the initial and concluding time of each program that this this channel of table record is broadcasted;
User watched tables of data: title, the initial and concluding time of this table record user institute viewing channel;
Audience rating statistical table: this table record programm name and program audience rating;
Digital channel information arrives the mapping table of digital channel title: the corresponding relation between this table record digital channel information and the digital channel title.
6, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method is characterized in that the job step of data acquisition module and receiver module is as follows:
1. the user opens set-top box, and set-top box normally starts back trigger data acquisition module work, and with sending data server to behind the digital channel information of current digital channel and the user ID coding, as the viewing-data that sends first;
2. if the user changes digital channel, then continue execution in step 3., otherwise rest on this step;
3. data acquisition module is transferred to data server after with new digital channel information and user ID coding;
4. data server receives the audience information table that data is deposited after the data in the user;
5. then jump to step 6. as if user's closure plane top box, otherwise jump to step 2.;
6. finish.
7, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method is characterized in that data server is as follows to the step of set-top box execution observation process:
1. data server sends to the subscriber computer top box at interval at regular intervals and detects packet;
2. if set-top box receives the detection packet, the current viewing-data of data collecting module collected then is together with sending data server to behind the user ID coding;
3. data server judges whether to receive the reply data bag of data acquisition module in the subscriber computer top box, then jumps to step 4. as if receiving, otherwise jumps to step 5.;
4. analyze the reply data bag, from packet, extract active user's audience information, the last item record in the user watched tables of data of this information of same is compared, if the digital channel information of the two is identical, then jump to step 1., otherwise jump to step 1. after upgrading the viewing-data table record;
5. with the machine time of current data server concluding time, and add in the database table respective record as the last program of watching of user.
8, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method is characterized in that the job step of data statistics module is as follows:
1. by the program information table of Systems Operator's each digital channel of typing in data server;
2. be kept in the audience rating statistical table according to the various indicator-specific statistics audience ratings of arranging in advance, and with the result.
9, the viewing rate data automatic acquiring of digital television system according to claim 2, statistical method is characterized in that the process steps of program that definite user specifically watches and the time span institute using method of watching program is as follows:
1. utilize digital channel information to determine the pairing digital channel title of current record in the user watched table to the mapping table of digital channel title;
2. find the associated digital channel program information table of digital channel title corresponding with current record in the user watched tables of data;
3. judge that the broadcast time which program is arranged in the program information table dropped in the rating zero-time and rating concluding time section of current record in the viewing-data table, so just can determine the user has watched which program of this digital channel.
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2006
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