CN101212643B - One-way CATV network based interactive VOD system and method - Google Patents
One-way CATV network based interactive VOD system and method Download PDFInfo
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- CN101212643B CN101212643B CN2006100645717A CN200610064571A CN101212643B CN 101212643 B CN101212643 B CN 101212643B CN 2006100645717 A CN2006100645717 A CN 2006100645717A CN 200610064571 A CN200610064571 A CN 200610064571A CN 101212643 B CN101212643 B CN 101212643B
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Abstract
The invention discloses a video-on-demand system based on a one-way cable TV network and a method thereof; the system consists of a customization terminal, a system terminal, a receiver and the one-way cable TV network. By adopting the video-on-demand system and the method thereof, the system terminal filters corresponding EPG information in a field which is added with a smart card number in an event message table of an order program on a premise that a DVB standard is obeyed and filters the order program according to the smart card number of a user at the receiver. Hardware of the one-way cable TV network does not need to be modified, which greatly reduces retrofitting cost for the system; by adopting the video-on-demand system based on the one-way cable TV network and the method thereof, the user can conveniently know the object which generates the order program and information such as playing time of the order program so as to realize good user experience and a new mode of value-added service for cable TV network operators.
Description
Technical field
The present invention relates to a kind of digital video broadcast system, particularly relate to a kind of system and method for in one-way CATV network, realizing the interactive VOD business.
Background technology
Today, the mankind will enter Age of Network Medium, and the operation of radio and television extensive style is the development of incompatibility situation.Become today of inexorable trend at develop on a large scale television digitization especially of cable TV, satellite television, how to carry out new radio and television management mode and become inevitable trend.
From DVB (Digital video broadcast, digital video broadcasting) beginning, it has been recognized that interactive application is the basis of Digital Television of new generation.Experience the parlor from the study and experience, MHP is all distributing its enchanting charm all the time, for a kind of harmonious warm scene is built by family.Just imagine, when turning on TV, you also can receive the blessing that relatives and friends send, whom has do not want to attempt again? the solution of a new generation's digital television interaction information system is 3C (COMPUTER, COMMUNICATION, CONSUMERELECTRICS) product of fusion development, it has merged the function of consumption electronic product, computer and communication.Can allow the abundant interaction of user by the Internet, call center, two-way, IP set-top box etc., enjoy every function that operator provides.
Existing interactive service mainly comprises video request program, Internet access, TV shopping, e-bank and other bi-directional data traffic.Existing broadcasting and television network mostly is unidirectional, and most of user uses also is unidirectional common set-top box, and how also can realize receiving the exploitation difficult point that functions such as greeting card, program request just become prior art on the common machine top box.At present main solution is the existing unidirectional broadcasting and television network of transformation or adopts modes such as network interface card, Cable modem to carry out Internet and insert, makes unilateral network become the bilateral network that can carry out data interaction.This implementation need be carried out integral body transformation to prior network device, needs a large amount of equipment cost of cost.At present, many local tv stations have been carried out the interactive VOD business, adopt and carry out program request by phone or to broadcasting office, carry out Promgramming by broadcasting and TV then, broadcast in certain period of time.Therefore with regard to present business, the advantage that does not make full use of Digital Television realizes greeting card, program request etc.The user and do not know who to he sent greeting card and who to his program request program, do not know when go to watch yet.
Summary of the invention
The technical problem that the present invention solves be proposed a kind of on existing one-way CATV network ground foundation, the system and method for realization interactive VOD.Can allow the domestic consumer of Digital Television by interactions such as mutual transmission television congratulatory card, program request songs, reach to the user and experience the purpose that boosts consumption with brand-new digital living.
The interactive VOD system based on one-way CATV network that the present invention proposes comprises: customization end, system end, receiving terminal and one-way CATV network network; Described customization end is used to customize request program, and the program request parameter is sent to system end, and described program request parameter comprises receiving terminal user profile, program request period, request program; System end comprises a broadcast management system, EPG server, video server, OSS and front end system, and the some broadcast management system receives the program request parameter of customization end, and sends the program request parameter to EPG server, video server, OSS; The request program transmission of Information stream that carries that generates is sent to the one-way CATV network network by front end system, receiving terminal comprises: set-top box and display terminal, management is filtered and be scheduled to the request program information of carrying in the transport stream of set-top box to the one-way CATV network network, regularly point out the receiving terminal user to watch the request program that the customization end subscriber is sent, and request program is shown by display terminal to demanding channel.
Preferably, customization end in communication terminal, landline telephone, set-top box, the internet terminal any one or multiple.
Preferably, the EPG server in the described system end increases receiving terminal smart card of set-top box information in the corresponding Event Information Table of request program.
Preferably, also comprise a filter in the described receiving terminal set-top box, be used for the request program information that belongs to receiving terminal being added to the predetermined broadcast program of set-top box according to the receiving terminal intelligent card numbers.
The interactive VOD method based on one-way CATV network that the present invention proposes comprises following treatment step:
1) the customization end subscriber carries out the program request customization at customization end, determines the program request parameter, and parameter comprises: receiving terminal user profile, program request period, request program, and the program request parameter is sent to the cable television system end;
2) the cable television system end sends request program according to the program request parameter on receiving terminal user's demanding channel; The simultaneity factor end will customize the request program segment information table that end subscriber information, receiving terminal user profile, request program and program request period information are compiled into the receiving terminal user, and send the receiving terminal user to;
3) receiving terminal filters the request program segment information table that the receiving system end is sent, and regularly points out the receiving terminal user to watch the request program that the customization end subscriber is sent to demanding channel according to information table.
Preferably, described receiving terminal user profile is the receiving terminal intelligent card numbers.
Preferably, described receiving terminal intelligent card numbers information stores is in the Short_event_descriptor of request program segment information table.
Preferably, described step 1) customization end subscriber carries out the program request customization by the mode of the Internet, phone, note or set-top box.
Preferably, described request program is TV song, television congratulatory card or television skit.
Preferably, the receiving terminal request program segment information table that the receiving system end is sent when start or switching channels in the described step 3).
Adopt interactive VOD system of the present invention and method, system end is finished the function of filtering corresponding EPG information to the field that increases recording smart card number in the Event Information Table of request program under the prerequisite of following the DVB standard, and carries out the filtration of request program on receiving terminal according to user smart card number.Do not need the one-way CATV network network is carried out modification on the hardware, greatly reduce the improvement cost of system, and adopt the present invention can make the user know the object of initiation request program and the information such as time that request program is play easily, have favorable user experience, may become a new value-added service pattern of cable network operator.
Description of drawings
Fig. 1 is based on the interactive VOD system schematic diagram of one-way CATV network in the preferred embodiment of the present invention;
Fig. 2 is that the receiving terminal set-top box is carried out the schematic diagram that reception is filtered in request program in the preferred embodiment of the present invention;
Fig. 3 is a receiving terminal set-top box initialization flowchart in the preferred embodiment of the present invention;
Fig. 4 is the EPG search routine figure of receiving terminal set-top box when changing platform in the preferred embodiment of the present invention.
Embodiment
Also the present invention is described in detail in conjunction with the accompanying drawings below by specific embodiment.
The interactive VOD system structure that the present invention is based on unidirectional wired network as shown in Figure 1 comprises: customization end, system end, receiving terminal and one-way CATV network network.The customization end is used to customize request program, and IP Information On Demand sent to system end, system end comprises a broadcast management system, EPG (Electronic program guide, electronic program guides) server, video server, OSS and front end system, the point broadcast management system receives the IP Information On Demand of customization end, and sends IP Information On Demand to EPG server, video server, OSS; The request program transmission of Information stream that carries that generates is sent to the one-way CATV network network by front end system, receiving terminal comprises: set-top box and display terminal, the request program information of carrying in the transport stream of set-top box to the one-way CATV network network is filtered and is scheduled to management, and request program is shown by display terminal.
As can be seen from Figure 1, the some broadcast management system can receive the IP Information On Demand that clients such as mobile phone, phone, set-top box, browser send over, and it is the set of Web website, call center etc.In post-production, EPG server, video server, OSS etc. obtain IP Information On Demand, generate corresponding transport stream according to the DVB standard, are broadcasting and television networks from what walk after front end system comes out.By the receiving terminal set-top box the relevant self-defined information that carries in the transport stream is filtered and be scheduled to the management, just can finish whole on-demand process.
Customization greeting card, program request song can be taked multiple mode, such as by Web website, phone, take back pass on Gong can set-top box.The radio and TV operator can also set up the Digital Television virtual community, the card number of the smart card of the terminal set top box of registered user name password and own correspondence.As example, the customization flow process comprises:
(1) operator sets up the Digital Television virtual community, perhaps the website of program request;
(2) user registers account number, password and intelligent card corresponding number, with the OSS of operator on the auto-associating;
(3) user lands the Digital Television community sites of operator;
(4) can from above-mentioned Digital Television community, select greeting card, and the blessing language of wanting, perhaps the period of broadcasting is determined in the song of program request and other relevant services simultaneously;
(5) card number of definite terminal box that will send if recipient user also has registration, can directly be imported the ID of community, finishes the mapping of ID to user terminal set-top box card number automatically by system like this.
Masterplate and program request song that certain operator also can provide special channel to play greeting card, the user can customize by the mode of note and phone.What use as the user is when having the set-top box of retransmission function, can finish customization on terminal set top box by remote controller.
After customization is finished, the content that system end broadcasts according to user's needs establishment, and necessary parameter is set, simultaneously at corresponding period broadcast items.VOD system of the present invention is followed the DVB standard, has done necessary modifications simultaneously.After user's start, set-top box is learnt good friend's IP Information On Demand by the corresponding information of retrieval, finishes predetermined and information simultaneously.After the time arrived, the receiving terminal set-top box had the good friend to send blessing information or IP Information On Demand to note the prompting watched automatically, and the user can switch to corresponding channel and watch.Owing to need filter the EPG information of being received, therefore can it can be met the demands by the definition of the Short_event_descriptor descriptor in Event Information Table (EIT) table is transformed.Can finish the function of filtering corresponding EPG information by the field that in Short_event_descriptor, increases recording smart card number.
Short_event_descriptor descriptor in the existing DVB standard only provides the description field of program segment name and program segment, does not have the description of intelligent card numbers, and therefore existing standard can not satisfy the requirement that the unique appointment of program receives the user.Though by CA (Conditional Access, the condition reception) system can address this problem, but more complicated, and be unfavorable for the maintenance of CA module, therefore the present invention is by redefining Short_event_descriptor, can handle in simpler mode, finish the purpose that the unique appointment of different programs receives the user.Definition is when SmartCard_ID_Length is 0x00 in the present embodiment, then expression broadcasting, otherwise be the intelligent card numbers length of receiving terminal, describe intelligent card numbers with the Card_Num field simultaneously, with the EPG information of handling common EPG information respectively and carrying intelligent card numbers.The handling process of system end is:
(1) the greeting card information of operator's layout broadcast or the song of program request; The program of institute's layout here is unified in several fixing channels and broadcasts;
(2) operator manages one or more multiplexers by network management system (nms), generates tables such as Event Information Table, and the respective field that Short_event_descriptor descriptor in the EIT table is set simultaneously is the intelligent card numbers of receiving terminal;
(3) operator carries out scrambling by the CA system, transmits signal simultaneously and gives the client.
After the problem of system end solves, how also to solve greeting card with customization and on terminal, perfectly show or allow the song etc. of program request not be received the problem that the person watches timely.For this reason, native system solves by receiving terminal, and its concrete flow process is as follows:
(1) carry out initialization operation after user's start, the search strategy of EPG is set, as shown in Figure 3, read intelligent card numbers simultaneously, and preserve, search strategy can be selected the whole network search herein.
Carry out the search of EPG when (2) user changes platform;
When (3) searching for EPG, obtain the relevant information in the Short_event_descriptor descriptor simultaneously, contrast current intelligent card numbers, whether equate;
(4) belong to this user reception and do not have scheduled Event information stores in predetermined management for retrieving, point out the user to receive information simultaneously;
(5) can eject dialog box when time arrival and carry out programmed alarm;
(6) after the user confirms a reservation prompting, jump to corresponding channel, watch the information that the good friend sends or the content of program request.
Realize the above processing that receives, can adopt the structure of set-top box end as shown in Figure 2.On the surface, predetermined structure of the present invention is compared with the predetermined structure of common machine top box has increased filter module.Existing establishing a capital in advance of set-top box is passive, promptly initiatively removes the predetermined program of liking by the user.And predetermined structure of the present invention is the structure of an active, promptly belongs to the programme information that this set-top box receives by filtration in retrieval EPG information, and initiatively adds in the predetermined formation.Therefore also just reached and received only programme information and the predetermined purpose of playing that belongs to this box.
After the user changed platform, set-top box can start search EPG flow process, collects predetermined information simultaneously, and its handling process as shown in Figure 4.By primitive network ID, TSID (transport stream ID, Transport Stream ID), predetermined information of ServiceID and program (Event) time started unique identification, the prompting user does corresponding operation when clashing.The conflict here is meant the conflict that program start time is identical and produce.By this processing, after the time arrived, predetermined management meeting was carried out prompting operation to the user.
The present invention can also carry out the interactive VOD of TV song and television skit except carrying out the interactive VOD of greeting card in addition.The consumption of adopting the present invention can stimulate vast radio and television user builds a kind of harmonious warm situation for vast family.
Claims (10)
1. the interactive VOD system based on one-way CATV network is characterized in that, described system comprises: customization end, system end, receiving terminal and one-way CATV network network; Described customization end is used to customize request program, and the program request parameter is sent to system end, and described program request parameter comprises receiving terminal user profile, program request period, request program; System end comprises a broadcast management system, EPG server, video server, OSS and front end system, and the some broadcast management system receives the program request parameter of customization end, and sends the program request parameter to EPG server, video server, OSS; The request program transmission of Information stream that carries that generates is sent to the one-way CATV network network by front end system, receiving terminal comprises: set-top box and display terminal, management is filtered and be scheduled to the request program information of carrying in the transport stream of set-top box to the one-way CATV network network, regularly point out the receiving terminal user to watch the request program that the customization end subscriber is sent, and request program is shown by display terminal to demanding channel.
2. the interactive VOD system based on one-way CATV network according to claim 1 is characterized in that, described customization end be in communication terminal, landline telephone, set-top box, the internet terminal any one or multiple.
3. the interactive VOD system based on one-way CATV network according to claim 1 and 2 is characterized in that, the EPG server in the described system end increases receiving terminal smart card of set-top box information in the corresponding Event Information Table of request program.
4. the interactive VOD system based on one-way CATV network according to claim 3, it is characterized in that, also comprise a filter in the described receiving terminal set-top box, be used for the request program information that belongs to receiving terminal being added to the predetermined broadcast program of set-top box according to the receiving terminal intelligent card numbers.
5. interactive VOD method based on one-way CATV network is characterized in that described method comprises following treatment step:
1) the customization end subscriber carries out the program request customization at customization end, determines the program request parameter, and parameter comprises: receiving terminal user profile, program request period, request program, and the program request parameter is sent to the cable television system end;
2) the cable television system end sends request program according to the program request parameter on receiving terminal user's demanding channel; The simultaneity factor end will customize the request program segment information table that end subscriber information, receiving terminal user profile, request program and program request period information are compiled into the receiving terminal user, and send the receiving terminal user to;
3) receiving terminal filters the request program segment information table that the receiving system end is sent, and regularly points out the receiving terminal user to watch the request program that the customization end subscriber is sent to demanding channel according to information table.
6. the interactive VOD method based on one-way CATV network according to claim 5 is characterized in that described receiving terminal user profile is the receiving terminal intelligent card numbers.
7. the interactive VOD method based on one-way CATV network according to claim 6 is characterized in that, described receiving terminal intelligent card numbers information stores is in the Short_event_descriptor of request program segment information table.
8. according to each described interactive VOD method of claim 5-7, it is characterized in that described step 1) customization end subscriber carries out the program request customization by the mode of the Internet, phone, note or set-top box based on one-way CATV network.
9. according to each described interactive VOD method of claim 5-7, it is characterized in that described request program is TV song, television congratulatory card or television skit based on one-way CATV network.
10. according to each described interactive VOD method of claim 5-7, it is characterized in that the receiving terminal request program segment information table that the receiving system end is sent when start or switching channels in the described step 3) based on one-way CATV network.
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| CN2006100645717A CN101212643B (en) | 2006-12-28 | 2006-12-28 | One-way CATV network based interactive VOD system and method |
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| CN2006100645717A CN101212643B (en) | 2006-12-28 | 2006-12-28 | One-way CATV network based interactive VOD system and method |
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| CN101212643B true CN101212643B (en) | 2011-08-10 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437146B (en) * | 2008-12-04 | 2011-04-06 | 四川长虹电器股份有限公司 | Interactive television system |
| CN101959049B (en) * | 2009-07-15 | 2013-02-27 | 深圳Tcl新技术有限公司 | Method for filtering EIT (Electronic Impedance Tomography) and digital television all-in-one machine adopting same |
| CN102185851A (en) * | 2009-12-02 | 2011-09-14 | 华为技术有限公司 | Timing playing device setting method and system |
| CN102378046A (en) * | 2010-08-13 | 2012-03-14 | 国基电子（上海）有限公司 | Server and method for realizing sharing of audio and video programs of set top box by using same |
| CN102868914A (en) * | 2011-07-08 | 2013-01-09 | 柏视数码科技(上海)有限公司 | Method and system for realizing video on demand on unidirectional digital television set-top box |
| CN102255970B (en) * | 2011-07-20 | 2013-12-18 | 北京视博云科技有限公司 | Interactive service remote access system |
| CN103327366A (en) * | 2013-05-23 | 2013-09-25 | 深圳市龙视传媒有限公司 | One-way video-on-demand method, one-way video-on-demand related equipment and one-way video-on-demand system |
| CN104378680B (en) * | 2014-11-14 | 2017-10-31 | 康佳集团股份有限公司 | A kind of intelligent television community users authentication method and processing system |
| CN105959791B (en) * | 2016-04-21 | 2019-12-03 | 深圳Tcl数字技术有限公司 | The playback method and device of TV programme |
| CN114866798B (en) * | 2022-05-10 | 2024-01-02 | 杭州国芯科技股份有限公司 | Method for rapidly acquiring programs in DVB network |
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| CN1516468A (en) * | 2003-08-29 | 2004-07-28 | 广州新华夏宽带网视讯技术有限公司 | Telephone video requesting system and its method |
| CN1798328A (en) * | 2004-12-30 | 2006-07-05 | 华为技术有限公司 | Implement system and method for customizing content of TV program |
| CN1852424A (en) * | 2006-01-16 | 2006-10-25 | 华为技术有限公司 | Flow-medium performace performance ordering method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516468A (en) * | 2003-08-29 | 2004-07-28 | 广州新华夏宽带网视讯技术有限公司 | Telephone video requesting system and its method |
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| CN1852424A (en) * | 2006-01-16 | 2006-10-25 | 华为技术有限公司 | Flow-medium performace performance ordering method |
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