CN101459827A - Bi-directional interaction implementing method for digital television network - Google Patents
Bi-directional interaction implementing method for digital television network Download PDFInfo
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- CN101459827A CN101459827A CNA2009103001240A CN200910300124A CN101459827A CN 101459827 A CN101459827 A CN 101459827A CN A2009103001240 A CNA2009103001240 A CN A2009103001240A CN 200910300124 A CN200910300124 A CN 200910300124A CN 101459827 A CN101459827 A CN 101459827A
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Abstract
The invention relates to a method for realizing the digital television network two-way interaction a. The invention discloses the method for realizing the digital television network two-way interaction, which reduces the cost of data transmitting hardware between a front end system and a user terminal, and has high transmitting efficiency. The technical proposal of the method is mainly characterized by comprising the following steps: firstly, the front end system transmits program flow information to the user end through a broadcasting and TV network, secondly, the front end system transmits authorization control information and authorization management information to an service processing module through an IP network, thirdly, the service processing module analyzes the authorization control information and the authorization management information, and transmits the information to the user terminal through the IP network, thirdly, the user terminal transmits back transmission data information to the service processing module through the IP network, the service processing module analyzes the back transmission data information and then transmits the information to the front end system through the IP network, the service processing module is used for analyzing and storing data and the conversion between different communication protocols. The method has the advantages of low hardware cost and high transmission efficiency.
Description
Technical field
The present invention relates to digital television techniques, particularly the implementation method of digital TV network two-way interactive.
Background technology
Traditional digital TV broadcasting network is a unidirectional network, front end system can only send various data flow to each user terminal, but the user can not return to front end system to data by user terminal, therefore this traditional Digital Television solution can not adapt to following more carrying out of multiple digital value-added service, and this bottleneck has hindered the bigger forward development of China Digital TV largely.Current, domestic part Digital Television company has also proposed the solution of many realization digital TV network two-way interactives, mainly contain GSM (Global System for Mobile Communications), LMDS (Local MultipointDistribution Services), EoC (Ethernet over Coax) etc., can both realize the passback of data.In the process of transfer of data in order to guarantee that fail safe and stability all will relate to encryption technology, in fact ciphering process is exactly that CAS (condition receiving system) generation EMM (Entitlement Management Message) carries out empowerment management control with ECM (Entitlement Control Message) to the transmission of data flow, in the bilateral network of prior art, front end system receives TS stream with EMM and the ECM information via scrambler condition that is packaged into, undertaken multiplexing by multiplexer and program stream again, by sending to user terminal by CHINA RFTCOM Co Ltd after the modulators modulate, hardware cost is too high at last.The information data of user terminal passback then is transferred to front end system by GSM or LMDS or EoC, the GSM network need be leased network mobile, UNICOM, and expense height, technical difficulty are big; LMDS network service area coverage is less, and communication quality is subject to weather effect, is not suitable for remote transmission; EoC network hardware cost is too high.
Summary of the invention
Technical problem to be solved by this invention is: at the deficiencies in the prior art, propose a kind of implementation method of digital TV network two-way interactive, make that transfer of data hardware cost between front end system and the user terminal is low, efficiency of transmission is high.
The technical scheme that the present invention solves the problems of the technologies described above employing is: the implementation method of digital TV network two-way interactive may further comprise the steps:
A. front end system sends program stream information by CHINA RFTCOM Co Ltd to user terminal;
B. front end system sends Entitlement Control Message and Entitlement Management Message by IP network to Service Processing Module;
C. Service Processing Module is resolved Entitlement Control Message and Entitlement Management Message, and sends to user terminal by IP network;
D. user terminal sends the passback data message by IP network to Service Processing Module, and Service Processing Module sends to front end system by IP network after resolving the passback data message;
Described Service Processing Module is responsible for the parsing and the storage of data, and the conversion between the different communications protocol.
The invention has the beneficial effects as follows: adopt IP network between Service Processing Module and front end system, user terminal, to connect, formation data return path, hardware cost is low, the efficiency of transmission height.
Description of drawings
Fig. 1 is a method flow diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Innovative point of the present invention is: adopt IP network between Service Processing Module and front end system, user terminal, to connect, and formation data return path, hardware cost is low, the efficiency of transmission height.
As shown in Figure 1, the implementation method of the digital TV network two-way interactive among the present invention, adopt following steps to realize: a. front end system sends program stream information by CHINA RFTCOM Co Ltd to user terminal;
B. front end system sends Entitlement Control Message and Entitlement Management Message by IP network to Service Processing Module;
C. Service Processing Module is resolved Entitlement Control Message and Entitlement Management Message, and sends to user terminal by IP network;
D. user terminal sends the passback data message by IP network to Service Processing Module, and Service Processing Module sends to front end system by IP network after resolving the passback data message;
IP network has that hardware cost is low, and signal quality is good, and is applied widely, and operation cost is hanged down these basic characteristics.Send Entitlement Control Message and Entitlement Management Message for front end system to user terminal, we have changed the delivering path of traditional Broadcasting Cable Network, program stream is still transmitted by traditional Broadcasting Cable Network, and Entitlement Control Message and Entitlement Management Message are transmitted by IP network, guaranteed safety of data transmission like this.And since by Service Processing Module as the intermediate conveyor hinge, realize the transmission of " point-to-point ", its transmission speed is than originally by fast many of traditional Broadcasting Cable Network transmitting speed.In the passback of information, also be that user terminal earlier will return data message by IP network and be sent to Service Processing Module, after Service Processing Module is resolved, transfer to front end system by IP network again.Service Processing Module among the present invention is responsible for the parsing and the storage of data, and the conversion between the different communications protocol, can realize by software.
Claims (1)
- The implementation method of [claim 1] digital TV network two-way interactive is characterized in that: may further comprise the steps:A. front end system sends program stream information by CHINA RFTCOM Co Ltd to user terminal;B. front end system sends Entitlement Control Message and Entitlement Management Message by IP network to Service Processing Module;C. Service Processing Module is resolved Entitlement Control Message and Entitlement Management Message, and sends to user terminal by IP network;D. user terminal sends the passback data message by IP network to Service Processing Module, and Service Processing Module sends to front end system by IP network after resolving the passback data message;Described Service Processing Module is responsible for the parsing and the storage of data, and the conversion between the different communications protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103001240A CN101459827A (en) | 2009-01-09 | 2009-01-09 | Bi-directional interaction implementing method for digital television network |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009103001240A CN101459827A (en) | 2009-01-09 | 2009-01-09 | Bi-directional interaction implementing method for digital television network |
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| CN101459827A true CN101459827A (en) | 2009-06-17 |
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| CNA2009103001240A Pending CN101459827A (en) | 2009-01-09 | 2009-01-09 | Bi-directional interaction implementing method for digital television network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854362A (en) * | 2010-05-21 | 2010-10-06 | 中兴通讯股份有限公司 | Data card, data card system and method for realizing multimedia service |
| CN104023253A (en) * | 2014-06-24 | 2014-09-03 | 广州高清视信数码科技股份有限公司 | Method and system for transforming one-way set-top box into two-way set-top box |
| CN110891187A (en) * | 2019-11-30 | 2020-03-17 | 广西广播电视信息网络股份有限公司 | Program authorization control method of household intelligent terminal |
-
2009
- 2009-01-09 CN CNA2009103001240A patent/CN101459827A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854362A (en) * | 2010-05-21 | 2010-10-06 | 中兴通讯股份有限公司 | Data card, data card system and method for realizing multimedia service |
| WO2011143857A1 (en) * | 2010-05-21 | 2011-11-24 | 中兴通讯股份有限公司 | Data card, data card system and multi-media service implementation method |
| CN101854362B (en) * | 2010-05-21 | 2014-07-16 | 中兴通讯股份有限公司 | Data card, data card system and method for realizing multimedia service |
| CN104023253A (en) * | 2014-06-24 | 2014-09-03 | 广州高清视信数码科技股份有限公司 | Method and system for transforming one-way set-top box into two-way set-top box |
| CN110891187A (en) * | 2019-11-30 | 2020-03-17 | 广西广播电视信息网络股份有限公司 | Program authorization control method of household intelligent terminal |
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Open date: 20090617 |