CN100488250C - Interactive television system based on digital television broadcast network - Google Patents

Interactive television system based on digital television broadcast network Download PDF

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CN100488250C
CN100488250C CN 200510050718 CN200510050718A CN100488250C CN 100488250 C CN100488250 C CN 100488250C CN 200510050718 CN200510050718 CN 200510050718 CN 200510050718 A CN200510050718 A CN 200510050718A CN 100488250 C CN100488250 C CN 100488250C
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server
interactive
content
management server
data
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CN 200510050718
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CN1735196A (en
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孙喜庆
李文魁
王海滨
坚 韩
高占建
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华数数字电视有限公司;北京永新同方数字电视技术有限公司;杭州网通信息港有限公司
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Abstract

本发明涉及一种基于数字电视广播网络的互动电视系统,其特征在于:通过数字电视单向广播网和双向接入网配合实现交互节目,通过单向广播网以描述符的方式提供业务内容的引用机制,通过双向接入网实现业务内容访问和与用户的互动。 The present invention relates to a digital television broadcast network based interactive television system, comprising: interact with television programs through a digital broadcast network unidirectional and bidirectional access network to provide service content through a one-way broadcast network in a manner descriptor referral mechanism to access and interact with the user through a bi-directional access network to achieve business content. 本发明能与用户实现实时的信息交换,并且这种信息交换可进行多次。 The present invention enables real-time information exchange with the user, and this information exchange may be performed a plurality of times.

Description

基于数字电视广播网络的互动电视系统 Interactive TV system based on digital television broadcasting network

技术领域 FIELD

本发明属于电视广播领域,具体地,是一种基于数字电视广播网络的互动电视系统。 The present invention is in the field of television broadcasting, in particular, a digital television broadcast network based interactive television system.

背景技术 Background technique

近年来,以数据电缆为传输介质的有线电视系统已经广泛地进入了城镇家庭,用于传统电视和数据电视业务的发布,随着有线电视网络和数字机顶盒技术的日臻成熟,数字电视大有取代传统电视业务之势。 In recent years, data cable as the transmission medium of cable television system has been widely into the urban households, for publishing traditional TV and digital television services, as cable networks and digital set-top box technology has matured, digital TV has replaced potential traditional TV business. 本发明即是基于数字电视网络而进行的。 The present invention is based on a digital television network that is carried out.

数字电视网络的基本组成包括通用EPG (电子节目指南)服务器, 复用器和作为用户端的机顶盒(STB),电视台作为节目源,将预先制作好的节目流发布到复用器中,同时通用EPG服务器根据设定的节目单生成描述符,同样发布到复用器中,与前述的节目流混合后成为确定的码流,传输至用户的机顶盒,并在家用电视机上显示出来。 The basic components include a general purpose digital television network EPG (Electronic Program Guide) server, a multiplexer, and the UE as set-top box (STB), a TV program source, the pre-made good release program stream to the multiplexer while generic EPG the server generates a single set of program descriptor, also released into the multiplexer, the program stream after mixing with the stream to become established, transmitted to the user's set-top box and displayed on a home television.

现有技术下,节目信息发布是单向的,即只能由内容提供者(电视台)向接受者(用户)发布信息,而接受者并不能反馈信息;在某些情况下,内容提供者需要与接受者进行交流,通常用的方法是在数据广播服务器上对播出内容进行迭加,以挂角广告的形式附加关联信息,用户则通过电话、短信等方式将反^"信息回传至后台服务器。 Under the existing technology, information dissemination program is one way that can only be provided by a content provider (TV station) to release information to the recipient (user), and the recipient does not feedback; in some cases, content providers need to communicate with a recipient, the method is carried out usually superposition of broadcast content on the broadcast data server, association information in the form of GuaJiao advertising, the user by telephone, SMS, etc. the reaction ^ "message back to the back-end server.

这种模式下,电视信息的发布和用户信息的反馈是籍由不同的网络完成的,所占用的资源较多;并且,这样的信息交流只能进行单次, In this mode, user information and feedback publish television information is completed by the nationals of different networks, occupied more resources; and, the exchange of such information can only be a single,

4而不能反复进行。 4 can not be repeated. 发明内容 SUMMARY

本发明要解决的是电视广播系统与用户间交流不顺畅的问题,提供一种能与用户实现实时信息交换的,基于数字电视广播网络的互动 The present invention to solve is between television broadcasting system to communicate with users of the problem is not smooth, and enables the user to provide a real-time information exchange, based on interactive digital television broadcasting network

电一见系统。 Electric saw system.

为此,本发明采用的技术方案是这样的:基于数字电视广播网络的互动电视系统,其特征在于:通过数字电视单向广播网和双向接入网配合实现交互节目,通过单向广播网以描述符的方式提供业务内容的引用机制,通过双向接入网实现业务内容访问和与用户的互动。 For this purpose, the technical solution adopted by the invention is such that: based interactive TV digital TV broadcast network system, wherein: the interactive programs achieved by digital television broadcasting unidirectional and bidirectional networks with access network, to the one-way broadcast network descriptor way to provide business content referencing mechanism to access and interact with the user through a bi-directional access network to achieve business content.

进一步地,基于数字有线电视网络的互动电视系统,它包括节目源,将节目发布至复用器;根据节目源的节目单生成相应服务信息的通用EPG服务器,与复用器连接,将所生成的服务信息发布至复用器; 复用器将混合码流传输至用户机顶盒;它还包括负责完成互动业务的调度数据、生成描述符、播发数据、播发描述符,负责完成标准节目单的导入、互动业务播出计划单的生成导出的调度管理服务器;负责待发布的业务数据信息的存储、播发的内容管理服务器,该内容管理服务器对外开放特定的数据交换接口,调度管理服务器作为客户端调用该数据交换接口,进行互动业务内容数据的获取;接收来自调度管理服务器的互动业务播出计划单,生成私有表及描述符的专用EPG服务器,该专用EPG服务器一方面与调度管理服务器连接,通过数据交换接口进行节目 Further, based on a digital cable network interactive television system, comprising a source program, the program will be released to the multiplexer; single generic EPG server generating the service information corresponding to a program according to the program source is connected to the multiplexer, the generated the information distribution service to the multiplexer; multiplexer mixing stream transmission to the subscriber set-top box; dispatch responsible for completing the data also includes interactive services, generating a descriptor, broadcast data broadcast descriptor is responsible for the completion of a single standard program introduced generating export orders interactive services broadcast program scheduling management server; to be responsible for the release of the data storage business information, broadcast content management server, the content management server as a client calls open specific data exchange interface, scheduling management server the data exchange interface, a service with interactive content data; receiving broadcast interactive services from a single dispatch plan management server, and generating a private descriptor table dedicated EPG server, the EPG server dedicated scheduling management server connected on the one hand, by data exchange interface program 计划单的传输,另一方面与复用器连接,将所生成的私有表及描述符发布至复用器;播出互动业务内容的数据广播服务器,与调度管理服务器通讯,进行互动电视内容的发布,数据广播服务器为通信的服务端,调度管理服务器为通信的客户端,数据广播服 Single program transport, on the other hand is connected to the multiplexer, the generated private table and descriptor released to the multiplexer; broadcast interactive data broadcasting server business content, scheduling management server communication, interactive television content publish, broadcast data server to server communications, scheduling management server to client communication, data broadcasting service

务器同时与复用器通讯,将互动业务内容播出到复用器;复用器接受来自节目源、通用EPG服务器、数据广播服务器、专用EPG服务器的码流,复用之后的码流通过调制,经数字电视广播网络传输至用户机顶盒;用户机顶盒同时通过双向接入网与内容管理服务器通讯。 Communication service simultaneously with a multiplexer, the multiplexer to interactive broadcast service content; a multiplexer receiving from the program source, general EPG server, the data broadcasting server, a dedicated EPG server code stream, after the stream multiplexed by modulation, the digital television broadcasting network transmission to the subscriber set-top box; set-top box users simultaneously access network via a bidirectional communications with the content management server.

所述内容管理服务器和调度管理服务器之间的数据交换接口与所述专用EPG服务器和调度管理服务器之间的数据交换接口为不同类型的萄:据交换?接口。 Data between the server and the content management schedule management server exchange data between the interface and the EPG server and the dedicated scheduling management server exchange interfaces for different types of grapes:? Data exchange interface. 如, 一个为FTP server ^妻口,另一个为web ssrvice接口。 For example, a port for the FTP server ^ wife, the other is a web ssrvice interface.

本发明的互动电视系统中,还可以包括应用服务器,用户机顶盒通过该应用服务器与内容管理服务器通讯。 Interactive TV system of the present invention may further include an application server, the user set-top box with the content management server via the communication server application.

前述的调度管理服务器中包括一同步模块,该同步模块与内容管理服务器、数据广播服务器、专用EPG服务器均保持连接,协调它们 The scheduling management server includes a synchronization module, the synchronization module and a content management server, the data broadcasting server, a dedicated EPG servers remains connected to coordinate their

的信息发布时间。 Published information.

专用EPG服务器是本发明中的重要组成部分,为减少对现有EPG 系统的影响,专用EPG服务器安装专用EPG应用软件,与调度管理服务器通过约定的格式接受其传输过来的互动业务计划单,并根据该计划单生成相应的私有表及描述符,每个互动业务的触发通过其对应的一个私有描述符来实现;当一个业务单元中有多个互动业务时,这些私有描述符依时间顺序被多次插入,其语法如下: Dedicated EPG server is an important part of the present invention, to reduce the impact on the existing EPG systems, EPG dedicated EPG server to install special application software and its transmission schedule management server accepts interactive services over the agreed format through a single program, and to form the corresponding single private descriptor table and according to the plan, each trigger interactive services implemented by a corresponding private descriptor; when a plurality of service units interactive services, these private descriptors are chronological multiple insertions, its syntax is as follows:

<table>table see original document page 6</column></row> <table><table>table see original document page 7</column></row> <table>在本发明中,信息发布是通过数字电视单向广播网进行的,现有条件下,可以是有线电视网,也可以是无线电视网、卫星电视网等; 信息的回传则通过双向接入网进行,凡能接入internet的网络资源均可作为接入网,如双向有线电视网、公用电话网、IP宽带网、移动通信网等。 <Table> table see original document page 6 </ column> </ row> <table> <table> table see original document page 7 </ column> </ row> <table> In the present invention, the information distribution through digital under existing conditions unidirectional broadcast network for television, and may be wired networks, wireless networks may be, a satellite television network; feedback information is performed by the bi-directional network, where the network can access the internet It can be used as an access network resources, such as two-way cable television network, a public telephone network, the IP broadband network, mobile communications network.

节目源和通用EPG服务器负责播出节目,即用户所收看到的主画面;工作人员根据电视台的节目单制作互动业务内容和互动业务计划单,互动业务内容即是与数字电视节目内容有关的关联数据信息,也就是用户所能看到的迭加的画面内容,该内容制作好后,保存在内容管理服务器中;互动业务计划单即前述互动业务内容的播出计划,包括播出时间、停留时间等,该计划单制作好后,保持在调度管理服务器中;用户进入数据广播频道后,调度管理服务器即根据节目内容, 从内容管理服务器中调取相关信息,发布到数据广播服务器中,并通过专用EPG服务器向复用器发布描述符,使该关联信息与节目源的主 EPG program source and general purpose server is responsible for broadcasting the program, namely the user's home screen to watch; the staff interactive services and interactive content based on business plans single television program-production, interactive services and digital content that is relevant to the content of television programs related data, that is, the user can see the contents of the image superimposed on the contents well prepared and stored in the content management server; interactive business plan that is the aforementioned single interactive business content broadcast program, including airtime, to stay time, after the planned single production, kept in dispatch management server; the user enters data broadcasting channel, scheduling management server that is based on program content, from the content management server retrieval of relevant information published to the data broadcast server and publishing the descriptor via a dedicated EPG server to the multiplexer, the program related information that the main source of

画面内容在复用器中成为混合码流,传输到用户机顶盒中;用户的反 A mixed picture content stream in the multiplexer for transmission to a user set top box; anti-user

馈表现为对关联信息的选择,这种选择是通过机顶盒进行的,该反馈信息经由双向接入网回传至应用服务器,并进一步回传至内容管理服 Feed showed a selection of related information, this choice is made by set-top box, the network feedback information back to the application server via a bi-directional, and further back to the content management service

务器,并由调度管理服务器调取进一步的相关信息,通过专用EPG服务器向复用器发布描述符,使该关联信息再次迭加到节目源所发布的节目内容上;如此反复,从而完成用户与内容提供商的交流、互动。 Service, a schedule management server retrieval by further related information, publishing the descriptor to the multiplexer through a dedicated EPG server, so that the related information again superimposed onto the program source program content posted; and so forth, thereby completing the user communication and content providers, interactive. 本发明所用的私有描述符中,descriptor-tag字段用以定义不同的业务类型,如: Private descriptors used in the present invention, descriptor-tag field to define different service types, such as:

<table>table see original document page 8</column></row> <table> <Table> table see original document page 8 </ column> </ row> <table>

该字段可区分不同紧急度的业务,相应地,机顶盒据此进行不同的处 This field can be a different degree of urgency of service differentiation, respectively, whereby the set top box at different

理; Management;

iTV—service-id是全网唯一标识的一个描述符,取值0 - 65535,在机顶盒中用作标记,以避免同一个互动业务被多次自动打开; start-offset:定义互动业务相对于主节目的起始时间; display—duration:定义互动业务的延续时间; URL—length:指明互动业务标识页面URL的长度; Char:为互动业务标识页面URL的内容。 iTV-service-id is a unique identifier descriptor of the entire network, the value 0 - 65535, used as a label in the set top box, to avoid a plurality of times with an interactive service is automatically opened; start-offset: defined with respect to the main interactive services the start time of the program; display-duration: the duration of the definition interactive services; URL-length: specifies interactive service identification page URL length; Char: interactive service identifier URL of the page content.

采用了该私有描述符,可以确保互动业务播出的精确性,使之与节目主画面在时间和内容上都形成良好的配合。 Using the private descriptor, broadcast interactive services to ensure the accuracy of the program so that the main screen in time and content to form a good fit.

附图说明 BRIEF DESCRIPTION

图l是本发明的结构框图。 Figure l is a block diagram of the present invention.

图2是本发明实施例1的机顶盒处理流程。 FIG 2 is a processing flow of the set top box 1 of the present invention. 图3、图4、图5是本发明实施例1的画面示意图。 3, FIG. 4, FIG. 5 is a schematic diagram of a screen example of the embodiment of the present invention. 图6是本发明实施例2的机顶盒处理流程。 FIG 6 is a process flow of the set top box 2 embodiment of the invention. 图7、图8是本发明实施例2的画面示意图。 FIG 7, FIG 8 is a schematic diagram of a screen of the embodiment 2 of the present invention.

具体实施方式 Detailed ways

参见附图1 。 1 of the drawings. 本发明是一基于数字有线电视网络的互动电视系统, 它包括节目源9,将节目发布至复用器7;通用EPG服务器2,根据节目源9的节目单生成描述符,通用EPG服务器2与复用器7连接, 将所生成的描述符发布至复用器;复用器7将混合码流传输至用户机顶盒8,使用户收看到节目的主体画面;它还包括调度管理服务器1, 负责完成互动业务的调度数据、生成描述符、播发数据、播发描述符, 负责完成标准节目单的导入、互动业务播出计划单的生成导出;内容管理服务器5,负责待发布的业务数据信息的存储、播发,内容管理服务器5对外开放特定的FTP Server接口,调度管理服务器1作为客户端调用该FTP server 4妻口,通过FTP协议进行互动业务内容数据的获取;专用EPG服务器3,接收来自调度管理服务器l的业务播出计划单,生成私有描述符,专用EPG服务器3—方面与调度管理 The present invention is based on a digital cable network interactive television system comprising a program source 9, the program will be released to the multiplexer 7; generic EPG server 2, based on the program to generate a single program source 9 descriptors, general EPG server 2 multiplexer 7 is connected, to release the generated descriptor to the multiplexer; 7 multiplexer mixing stream transmission to the subscriber set-top box 8, allowing users to watch a program body screen; also includes scheduling management server 1, is responsible complete interactive service scheduling data, generate descriptors, broadcast data, broadcast descriptor is responsible for completing the import standard program listings, interactive broadcast business plan to generate export orders; content management server 5, responsible for storing data to be released by business information , broadcast, the content management server FTP server 5 special open interfaces, scheduling management server 1 as the client invokes the FTP server 4 wife port, interactive services that acquires contents data through the FTP protocol; dedicated EPG server 3 receives from the scheduling management l broadcast server service planning bill, generating a private descriptor, a dedicated EPG server management and scheduling aspects 3- 务器1连接,通过web service接口进行节目计划单的传输,另一方面与复用器7连接,将所生成的私有描述符发布至复用器;数据广播服务器4,与调度管理服务器l通讯,进行互动电视内容的发布,数据广播服务器为通信的服务端,调度管理服务器为通信的客户端,数据广播服务器4同时与复用器7通讯,将互动业务内容播出到复用器; 复用器7接受来自节目源9、通用EPG服务器2、数据广播服务器4、 专用EPG服务器3的码流,复用之后的码流通过Q雄技术调制,经有线电视网络传输至用户机顶盒8;调度管理服务器l中包括一同步模块11,该同步模块与内容管理服务器5、数据广播服务器4、专用EPG 服务器3均保持连接,协调它们的信息发布时间;用户机顶盒8同时通过应用服务器6与内容管理服务器5通讯。 Service 1 is connected, a single program is scheduled for transmission by the interface web service, on the other hand is connected to the multiplexer 7, to release the generated private descriptor to the multiplexer; data broadcasting server 4, and schedule management server communication l , interactive TV content publishing, broadcast data server to server communications, scheduling management server to client communication, data broadcasting servers and 4 simultaneous communications multiplexer 7, the interactive business content broadcast to the multiplexer; complex 7 9 demultiplexer accepts generic EPG server 2, the data broadcasting server 4, a dedicated EPG server streams from the program source 3, after stream multiplexed by the male Q modulation techniques, transmission via the cable television network to a user set top box 8; scheduling management server l includes a synchronization module 11, the synchronization module and the content management server 5, the data broadcasting server 4, a dedicated EPG server 3 remain connected to coordinate their information published; user set top box 8 at the same time by the application server 6 and the content management 5 server communications.

在后台制作程序中,工作人员根据电视台(即节目源)的节目单制作互动业务内容和互动业务计划单,互动业务内容即是与数字电视节目内容有关的关联数据信息,也就是用户所能看到的迭加的画面内容,该内容制作好后,保存在内容管理服务器5中;互动业务计划单即前述互动业务内容的播出计划,包括播出时间、停留时间等,该计划单制作好后,保持在调度管理服务器l中;用户进入数据广播频道后,调度管理服务器即根据节目内容,从内容管理服务器中调取相关信息,发布到数据广播服务器4中,并通过专用EPG服务器3向复用器发布描述符,使该关联信息与节目源的主画面内容在复用器中成为混合码流,传输到用户机顶盒中;用户的反馈表现为对关联信息的选择,这种选择是通过机顶盒进行的,该反馈信息同样经由有线电视网络回传至应用服务器 In the background making program staff to create interactive business content and interactive services based on a single television program (ie program source) of a single program, interactive business content data that is associated with the digital content related to the television program, that is, the user can see screen content to the superposition of the contents well prepared and stored in the content management server 5; interactive business plan that is the aforementioned single interactive business content broadcast program, including airtime, residence time, the planned single production after holding in the schedule management server l; the user enters data broadcast channel, scheduling management server that is based on program content, from the content management server retrieval of relevant information posted to the data broadcast server 4, and the dedicated EPG server 3 multiplexer deployment descriptor, the main picture information content of the associated program source code of a mixed stream in the multiplexer for transmission to a user set top box; user feedback on the performance of selection related information, which is selected by set-top boxes, and the feedback information via cable television network back to the same application server 6,并进一步回传至内容管理服务器5,并由调度管理服务器调取进一步的相关信息,通过专用EPG服务器向复用器发布描述符,使该关联信息再次迭加到节目源所发布的节目内容上, 如此反复进行。 6, and further back to the content management server 5 by the schedule management server and obtain further information, publishing the descriptor to the multiplexer through a dedicated EPG server, so that the related information is superimposed again to the program source the program is published content, repeat the procedure.

参见附图2。 See Figure 2. 本实施例是一互动电视业务,用户进入广播频道后30-60秒后(为了方便用户切换频道),STB EPG程序按照3s - 5s的cycle time 实时#r观'J当前TS 中的iTV_EIT是否存在iTV_Service—descriptor,如果没有再一全测该TS中标准EIT中是否存在iTV_Service_descriptor。 This embodiment is an interactive television service, the user enters the broadcast channel after 30-60 seconds (for convenience user switches a channel), STB EPG program according 3s - 5s cycle time of real-time #r View 'J of the current TS whether there iTV_EIT iTV_Service-descriptor, if there is no longer a full iTV_Service_descriptor if the measured standard TS EIT. 一旦检测到该描述符,再行检查该描述符中iTV_service —ty.pe的值是否为强制类型0x03,如果是则直接打开描述符中URL指向的互动业务内容。 Upon detection of the descriptor, and then checks whether the value of the row descriptor iTV_service -ty.pe to 0x03, if the descriptor directly open the URL points to the interactive service content type is mandatory.

若描述符类型是通用交互类型0x01,则再根据该描述符的iTV—service-id对应4全查一几顶盒本;也记录状态,判断该描述符是否曾经被打开过。 If the type is a generic descriptor interaction type 0x01, then the descriptor based on the iTV-service-id 4 corresponding to a full investigation of the present several top box; also recorded state, it is determined whether the descriptor has been opened. 若该描迷符被打开过,则EPG不主动打开对应该描述符的互动业务提示框。 If the fan character description been opened, the EPG should not take the initiative to open descriptors interactive services prompt box. 若没有被打开过则EPG显示对应该描述符的互动业务提示框。 If you have not been opened to display the EPG descriptor interactive services should prompt box.

在互动业务提示框状况可选择是否进入该提示框指向的互动业务内容,该状态下视音频能正常收看。 In the interactive prompt box business situation can choose whether to enter the interactive business content of the prompt box pointing, this state can normally watch video and audio.

在EPG状态,用户按红色键/Fl键可激活搜索iTV-Service—descriptor。 State in the EPG, the user presses the red button / Fl key to activate the search iTV-Service-descriptor.

互动业务提示框状态,选择确定进入互动业务内容;选择取消退 State interactive services prompt box, choose OK Go to interactive business content; select Cancel retreat

出提示框状态,返回进入互动业务提示框状态前一刻所观看的频道状太 The prompt box state, back into the state interactive services before the balloon moment watched channels like too

心o Heart o

参与互动电视业务;按"后退,,键返回上个页面;按"退出"键退出Browser,输入控制由EPG接管;如果用户无操作,则Browser 关闭时间由页面决定。 Participate in interactive TV services; press "Back ,, key to return to the previous page; press" Exit "button to exit the Browser, input control taken over by the EPG; if no user operation, the closing time is determined by the Browser page.

在Browser状态下,由于不能进行EPG操作,遥控器的菜单等EPG 相关键将被屏蔽,直到用户按"退出"键,退出browser的控制。 In Browser state, since the operation can not be performed EPG, EPG menus related to the remote control keys will be blocked until the user presses the "exit" key to exit the control of the browser.

如果找不到URL对应页面,Browser调用内置故障提示页面,请用户退出至频道状态或后退回到上一页面。 If you can not find the page corresponding to the URL, Browser calls the built-in fault tips page, the user exits the channel state or back to return to the previous page.

参见图3、图4、图5。 Referring to FIG 3, FIG 4, FIG 5. 在用户收看节目时,EPG状态下画面上出现互动业务的提示框;当用户选择"确定"后,画面上出现互动业务的题目内容;用户选4爭正确答案后,画面上出现互动业务结果。 When the user watch the program, balloon interactive services appear under EPG state on the screen; when the user selects "OK", the title interactive business content appears on the screen; the user 4 election battle correct answer, interactive business results appear on the screen.

参见附图6。 See Figure 6. 本实施例是一多画面互动电视业务,它是通过一个 The present embodiment is a multi-screen interactive TV services, which is obtained by a

特色的互动业务。 Features interactive services.

在当前TS流中的SDT中插入multiview-descriptor,取代原先的mosaic—descriptor,表示这个业务是多画面业务的主入口业务。 TS stream is inserted in the current SDT multiview-descriptor, to replace the original mosaic-descriptor, it indicates that the business is a front ingress traffic multi-screen service. 语法如下: The syntax is as follows:

<table>table see original document page 12</column></row> <table>其中如果从数据广播服务器调用浏览器,URL形式如下: "dvb: //OC—nid. OC-transport-id. OC—service—id. 0C—componen t_id/Multiview. htm?Ocpid=xxx&Net_id=xxx&Transport-id=xxx&Service_id=xxx" <Table> table see original document page 12 </ column> </ row> <table> wherein if the data broadcasting browser from the call server, URL form as follows: "dvb:.. // OC-nid OC-transport-id OC -service-id. 0C-componen t_id / Multiview. htm? Ocpid = xxx & Net_id = xxx & Transport-id = xxx & Service_id = xxx "

如果采用IP方式,URL形式如下: If IP mode, URL looks like this:

http :〃www.hzdtv.tv/path.. ./Multiview.htm?Net—id=xxx&Transp ort—id=xxx&Service—id=xxx。 http: 〃www.hzdtv.tv / path .. ./Multiview.htm?Net-id=xxx&Transp ort-id = xxx & Service-id = xxx.

参见图7、图8。 Referring to FIG 7, FIG 8. 用户收看节目时,画面上出现多个可供选择的子画面,用户选择其中一个后,即进入到所选择的节目内容。 When the user views sub-picture program, a plurality of alternative appear on the screen, the user selects one of them, that is, into the selected programming content.

Claims (5)

1. 基于数字电视广播网络的互动电视系统,其特征在于:通过数字电视单向广播网和双向接入网配合实现交互节目,通过单向广播网以描述符的方式提供业务内容的引用机制,通过双向接入网实现业务内容访问和与用户的互动;它包括节目源,将节目发布至复用器;根据节目源的节目单生成相应服务信息的通用EPG服务器,与复用器连接,将所生成的服务信息发布至复用器;复用器将混合码流传输至用户机顶盒;它还包括负责完成互动业务的调度数据、生成描述符、播发数据、播发描述符,负责完成标准节目单的导入、互动业务播出计划单的生成导出的调度管理服务器;负责待发布的业务数据信息的存储、播发的内容管理服务器,该内容管理服务器对外开放特定的数据交换接口,调度管理服务器作为客户端调用该数据交换接口,进行互动业务内容数 1. Based interactive TV digital TV broadcast network system, wherein: interact with television programs through a digital broadcast network unidirectional and bidirectional access network to provide service content through a one-way broadcast network to reference a descriptor mechanism, by a bidirectional access network, the service content access and interaction with the user; it includes a program source, to publish the program multiplexer; single generic EPG server generating the service information corresponding to a program according to the program source is connected to the multiplexer, the the generated information distribution service to the multiplexer; multiplexer mixing stream transmission to the subscriber set-top box; dispatch responsible for completing the data also includes interactive services, generating a descriptor, broadcast data, broadcast descriptor, the program responsible for completing the standard single import, export generation of interactive services broadcast a single program scheduling management server; responsible for storing business data information to be published, broadcast content management server, open the content management server specific data exchange interface, scheduling management server as a client call to end the data exchange interface, interactive services digital content 的获取;接收来自调度管理服务器的互动业务播出计划单,生成私有表及描述符的专用EPG服务器,该专用EPG服务器一方面与调度管理服务器连接,通过数据交换接口进行节目计划单的传输,另一方面与复用器连接,将所生成的私有表及描述符发布至复用器;播出互动业务内容的数据广播服务器,与调度管理服务器通讯,进行互动电视内容的发布,数据广播服务器为通信的服务端,调度管理服务器为通信的客户端,数据广播服务器同时与复用器通讯,将互动业务内容播出到复用器;复用器接受来自节目源、通用EPG服务器、数据广播服务器、专用EPG服务器的码流,复用之后的码流通过调制,经数字电视广播网络传输至用户机顶盒;用户机顶盒同时通过应用服务器与内容管理服务器通讯。 Acquisition; interactive services broadcast programs received from a single scheduling management server, and generating a private descriptor table dedicated EPG server, the EPG server dedicated scheduling management server connected on the one hand, the interface program is scheduled for transmission through a single data exchange, On the other hand connected to the multiplexer, will release the generated private table and descriptor to the multiplexer; broadcast interactive data broadcasting server business content, scheduling management server communication, publish interactive TV content, data broadcasting servers the service end of the communication, scheduling management server to client communication, data broadcasting servers simultaneously and multiplexer communication, interactive business content will be broadcast to the multiplexer; multiplexer to accept the program source, generic EPG servers, data broadcasts from stream server, a dedicated EPG server, after the code by modulating a multiplexed stream, the digital television broadcasting network transmission to the subscriber set-top box; set-top box while the user via the application server and the content management server communication.
2. 如权利要求1所述的基于数字电视广播网络的互动电视系统,其特征在于:所述内容管理服务器和调度管理服务器之间的数据交换接口与所述专用EPG服务器和调度管理服务器之间的数据交换接口为不同类型的数据交换接口。 2. The digital television broadcast network based interactive television system as recited in claim 1, wherein: said content management data between the server and the server exchange scheduling management interface between the dedicated EPG server and schedule management server interface to exchange data exchange interfaces for different types of data.
3. 如权利要求2所述的基于数字电视广播网络的互动电视系统,其特征在于:它还包括应用服务器,用户机顶盒通过该应用服务器与内容管理服务器通讯。 Based on the digital television broadcast network interactive television system according to claim 2, characterized in that: it further comprises an application server, the user set-top box with the content management server via the communication server application.
4. 如权利要求3所述的基于数字电视广播网络的互动电视系统,其特征在于:调度管理服务器中包括一同步模块,该同步模块与内容管理服务器、数据广播服务器、专用EPG服务器均保持连接,协调它们的信息发布时间。 4. The digital television broadcast network based interactive television system as recited in claim 3, wherein: the schedule management server includes a synchronization module, the synchronization module and a content management server, the data broadcasting server, a dedicated EPG server remain connected coordinate their information dissemination time.
5. 如权利要求4所述的基于数字电视广播网络的互动电视系统,其特征在于:专用EPG服务器安装专用EPG应用软件,接收调度管理服务器传输过来的约定格式的互动业务计划单,并根据该计划单生成相应的私有表及描述符,每个互动业务的触发通过其对应的一个私有描述符来实现;当一个业务单元中有多个互动业务时,这些私有描述符依时间顺序被多次插入,其语法如下:Syntax No.of bits IdentifieriTV一service—descriptor (){ descriptor—tag 8 Uimsbfdescriptor—length 8 UimsbfiTV一service一type 8 UimsbfiTV一service—id 16 Uimsbfstart—offset 24 Uimsbfdisplay—duration 24 uimsbfURL—length 16 uimsbffor(i=0;i<N;i++){ Char 8 uimsbf 5. The digital television broadcast network based interactive television system according to claim 4, wherein: EPG dedicated EPG server to install special application software, the management server receives the scheduling transmission over a single interactive services plan agreed format, and based on the single program generates the corresponding private tables and descriptors, each trigger interactive services implemented by a corresponding private descriptor; when a plurality of service units interactive services, these private descriptors is a plurality of times chronological insert the following syntax: syntax No.of bits IdentifieriTV a service-descriptor () {descriptor-tag 8 Uimsbfdescriptor-length 8 UimsbfiTV a type 8 UimsbfiTV a service a service-id 16 Uimsbfstart-offset 24 Uimsbfdisplay-duration 24 uimsbfURL-length 16 uimsbffor (i = 0; i <N; i ++) {Char 8 uimsbf
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