CN101399972B - Media center system and implementation method thereof - Google Patents
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Abstract
The invention provides a media center system and its accomplishing method for accomplishing centralized wiring of digital TV signal and multiple reception, which relate to multimedia technology. The system comprises: tuner pool, decoder pack, scheduling module, content distribution module, correcting module. The method comprises: receiving request of client terminal, controlling corresponding tuner in tuner pool to work; correcting the mistake for a device in the tuner pool when mistake happens in the device in the tuner pool; tuner in working state selects TV analog signal needed by client terminal from received multipath TV analog signal; decoding TV analog signal fitting demand of client terminal, outputting TV digital signal; transmitting the decoded TV digital signal to corresponding client terminal. The invention can avoid complex wiring and low flexibility of multipath digital TV signal of existing technology, and can solve playing problem of multipath TV.
Description
Technical field
The present invention relates to multimedia technology, relate in particular to a kind of media center system and its implementation based on the IGRS agreement.
Background technology
Along with the function of various information equipments from strength to strength, how and rapid development of network technology realizes interconnected and better collaborative work convenient, intelligent between each equipment, has become the focus that people pay close attention to.And, how to realize automatic discovery, intelligence interconnection, control mutually, resource-sharing, cooperation with service application etc. between the network equipment and the household equipment easily for " digital home network ", then be the main direction of person skilled research.
For this reason, technical staff's joint research both at home and abroad, formulated the industry standard of a plurality of home networks, (the protocol information device resource is shared cooperation with service as IGRS, Intelligent Grouping and ResourceSharing, claim IGRS again), UPnP agreement (UPnP, Universal Plug and Play) etc.
The IGRS agreement can be in narrow network domains (wired, wireless), support automatic device discovery, dynamic group net, resource-sharing and cooperation with service between multiple information equipment, household electrical appliance, the communication apparatus, thereby improve the interoperability and the ease for use of these equipment rooms, and create application model and the abundant application that makes new advances, thereby the IGRS agreement is to obtain primarily used network communication protocol standard at present.
The UPNP agreement is the network application-level protocol of a kind of framework on TCP/IP, can realize the interactive operations such as exchange of mutual discovery, interface statement and other information between networked devices based on the wireless network of UPNP agreement.Application number is 200410036513.4, denomination of invention is the application of " based on the media center and the manner of execution thereof of UPNP agreement ", disclose a kind of multiple audio-video document of realizing and play, and had the media center and the manner of execution thereof of family's network management function based on the UPNP agreement.
Though existing method can solve the intelligence interconnection between the network equipment and the home appliance, along with the raising of people's living standard, having multiple TV set in the one family has been a kind of general phenomenon.When needs use multiple TV set simultaneously, can both receive TV programme signal clearly in order to make every television set, this just need dispose independent TV signal receiver for every television set.So just make the wiring complexity of multi-path digital TV signal, and the flexibility of wiring can not be satisfied user's actual needs.
Summary of the invention
The invention provides a kind of media center system and its implementation, can realize the concentric wiring of digital television signal, multipath reception.
Media center system technical scheme of the present invention is as follows:
A kind of media center system comprises:
Tuner pool comprises at least two tuners, and described tuner is selected useful television analog signals therewith from multi-channel TV signals;
Decoder bank comprises at least two decoders, and described decoder is connected with described tuner is corresponding; Described decoder is decoded to described useful television analog signals therewith, the output TV digital signal;
Scheduler module is controlled the operating state of tuner in the described tuner pool according to the request of client;
Distribution module, the TV digital signal that Decoder bank is exported is sent to corresponding client;
Correction module is used for when certain equipment of described tuner pool is made mistakes the equipment of makeing mistakes in the described tuner pool being carried out error correction;
Wherein, described tuner pool and described Decoder bank are concentrated and are put together.
Described media center system also comprises:
Monitoring modular is used to monitor the request of client, and the request of client is transmitted to scheduler module.
Described media center system also comprises:
Input module is connected with the input of described monitoring modular, is used to import the request of client.
Described media center system also comprises:
Output module is connected with described distribution module, is used to export the TV digital signal of distribution module distribution.
Described media center system also comprises:
Transport module is connected with described output module, is used for the TV digital signal of transmission is carried out encoding and decoding.
Described transport module is: power line carrier or WLAN (wireless local area network) or Ethernet.
Described media center system also comprises:
Power module is used to described tuner, decoder, scheduler module and distribution module that power supply is provided.
The technical scheme of the implementation method of media center of the present invention is as follows:
A kind of implementation method of media center system may further comprise the steps:
Receive the request of client, the control corresponding tuner in tuner pool is carried out work;
When certain equipment in the described tuner pool is made mistakes, the equipment of makeing mistakes in the described tuner pool is carried out error correction;
In running order tuner is selected the television analog signals therewith that client needs from the multi-channel television analog signal that receives;
The television analog signals therewith that meets the client requirement is decoded the output TV digital signal;
Decoded TV digital signal is sent to corresponding client.
In the request according to client is also to comprise before client is distributed corresponding tuner:
The request of monitoring client, and having monitored after client sends request, the request of client is transmitted.
Described method also comprises:
Decoded TV digital signal is exported to client.
In the present invention, owing to will need be the tuner of every television set setting originally, equipment such as decoder are concentrated and are placed, and carry out centralized control, scheduling and distribution, therefore multi-path digital TV signal wiring complexity and the not high problem of flexibility in the prior art have been avoided, thereby realized multi-path digital TV signal one tunnel local the broadcast and the multi-channel network distribution, solved the playback problem of multi-channel television.And according to technical scheme of the present invention, can the digits deleted television signal line and freely inserts, so realized flexible wiredly, strengthened the flexibility of connecting up.
Description of drawings
Fig. 1 is the composition schematic diagram of media center system of the present invention;
Fig. 2 is the concrete structure figure of media center system of the present invention;
Fig. 3 is the flow chart of the implementation method of media center system of the present invention;
Fig. 4 is the flow chart that the Web TV of the implementation method of media center system according to the present invention is realized;
Fig. 5 is the flow chart that the network media of the implementation method of media center system according to the present invention is realized.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
Media center system of the present invention is used to receive television analog signals therewith, therefrom selects the television analog signals therewith that meets the client needs, and to its decoding, and the output TV digital signal.
As shown in Figure 1, described media center system comprises: tuner pool, Decoder bank, scheduler module and distribution module.
Wherein, tuner pool comprises at least two tuners, and described tuner is selected useful television analog signals therewith from multi-channel TV signals;
Decoder bank is concentrated placement with described tuner pool, comprises at least two decoders, and described decoder is connected with described tuner is corresponding; Described decoder is decoded to described useful television analog signals therewith, the output TV digital signal;
Scheduler module is controlled the operating state of tuner in the described tuner pool according to the request of client;
Distribution module, the TV digital signal that Decoder bank is exported is sent to corresponding client;
Correction module is used for when certain equipment of described tuner pool is made mistakes the equipment of makeing mistakes in the described tuner pool being carried out error correction.
Scheduler module is selected a tuner that meets the requirements of the customers from tuner pool.Then by the tuner of choosing from be input to multi-channel TV signals wherein, select the client and want the television analog signals therewith received, and send it to decoder with the corresponding connection of the tuner of being chosen, by decoder this TV signal is decoded.TV digital signal behind decoder decode sends it to clients corresponding by distribution module.
Need to prove that described tuner pool and Decoder bank are concentrated and put together, that is to say to be brought together, form tuner pool and Decoder bank respectively being respectively independent tuner and the decoder that is provided with of each user originally.And described tuner pool and described Decoder bank also are set together.
Owing to will be concentrated placement such as the tuner that is provided with respectively of each user, decoder and form tuner pool and Decoder bank respectively originally, and tuner pool and Decoder bank are carried out centralized dispatching, control by scheduler module, thereby, utilize media center system of the present invention to realize one tunnel local the broadcast and the multi-channel network distribution of multi-path digital TV signal, solved the reception problem of multi-path digital TV signal, and it is easy to connect up.
Certainly in media center, also set up mechanism for correcting errors, when certain equipment in the tuner pool is made mistakes, it has been carried out correction process, to guarantee the operate as normal of media center system by described correction module.
On the basis of media center system shown in Figure 1, described media center system also comprises: monitoring modular, input module, output module, transport module and power module.
Wherein the input of monitoring modular is connected with input module, and output is connected with scheduler module.One end of output module is connected to the output of distribution module, and the other end is connected to the input of transport module; Described power module is connected to described tuner pool and Decoder bank.
The request of client is input to media center system through input module.When having the client to initiate to play the TV programme requirement, monitoring modular is transmitted to scheduler module with the request of client.Comprise that in the request of client the client wants channel, the channel stream of the program watched, and the selected dispatching algorithm of client etc.Scheduler module is according to the selected dispatching algorithm of client, from tuner pool, select the tuner that meets the requirements of the customers, from the multi-channel TV signals of input, select the road TV signal that meets the requirements of the customers by tuner, and described TV signal sent to the corresponding decoder of described tuner decode.TV digital signal behind described decoder decode is sent to distribution module, is sent to the transport module interface of relative client through output module, by transport module it is transferred to this client.Power module provides power supply for described tuner, decoder, scheduler module and distribution module etc.
Certainly, client can be provided with set-top box, also set-top box can be set, and the quantity of the set-top box of setting is determined by the client.If client is provided with set-top box, then the TV digital signal of transport module transmission sends to set-top box, is carried out the decoding and the broadcast of signal by set-top box.
Transport module can be modes such as power line carrier, WLAN (wireless local area network), Ethernet, and the path of TCP/IP is provided, can be according to client's needs independent assortment.If client's environment for use can freely connect up, can preferentially select the mode of Ethernet so.Power line carrier (PLC) mode can be in client's whole system under the situation of electric power networks of a path to be used.WLAN (wireless local area network) can be applied under the less situation of the interference ratio of external environment.More than three kinds of modes from having put forward selectable implementation with the flexibility aspect economically, can fully satisfy user's needs.
If decoded TV digital signal is transmitted based on power line carrier, then the TV digital signal of transmission is decoded and encoded by power line carrier; If transmit based on WLAN (wireless local area network), then by wireless standard, for example 802.11x etc. carries out Code And Decode to the TV digital signal of transmission.Certainly, the implementation of transport module is not limited in three kinds of modes enumerating at this.
Need to prove that the tuner in the tuner pool is concentrated by the mode of amplifier or tuner winding and placed, or parallel placement in logic.Media center system adopts the IGRS agreement that the Service Source of multi-path digital TV is issued, and comprises the address, port, interaction protocol of server etc., and client finds to media center that based on the IGRS agreement distribution module is distributed based on the IGRS agreement.
The TV digital signal of media center system transmission comprises picture, music, TV play, film etc.
The TV digital signal of media center system transmission comprises picture, music, TV play, film etc.
Because the equipment in the media center system adopts centralized control, scheduling, distribution, realized one tunnel local the broadcast and the multi-channel network distribution of multi-path digital TV signal SD, solved the playback problem of multi-channel television.And technical scheme according to the present invention has been omitted digital television signal line and freely inserting, so has realized flexible wiredly, has strengthened the flexibility of connecting up.
Corresponding with media center system, the present invention also provides a kind of implementation method of media center system.As shown in Figure 3, described media center implementation method may further comprise the steps:
(1) request of reception client, the control corresponding tuner in tuner pool is carried out work;
(2) when described tuner is made mistakes, described tuner is carried out error correction, to guarantee the operate as normal of media center system.
(3) in running order tuner is selected the television analog signals therewith that client needs from the multi-channel television analog signal that receives;
(4) television analog signals therewith that meets the client requirement is decoded the output TV digital signal;
(5) decoded TV digital signal is sent to corresponding client.
Pass through the method, realized one tunnel local the broadcast and the multi-channel network distribution of multi-path digital TV signal SD, thereby omitted television signal line and freely inserted, therefore realized flexible wired, strengthened the flexibility of wiring, and the mechanism for correcting errors by setting up, when certain equipment in the tuner pool is made mistakes, it is carried out correction process, to guarantee the operate as normal of media center system.
As further improvement, the implementation method of media center system of the present invention also comprises before in step (1): the request of (11) monitoring client, and having monitored after client sends request, the request of client is transmitted.Can effectively control the operating state of tuner by this step.
In addition, described method also comprises step after step (4):
(5) decoded TV digital signal is exported to client.
By centralized control to equipment in the media center, multi-path digital TV signal wiring complexity and the not high problem of flexibility in the prior art have been avoided, thereby realized one tunnel local the broadcast and the multi-channel network distribution of multi-path digital TV signal SD, solved the playback problem of multi-channel television.And technical scheme according to the present invention has been omitted television signal line and freely inserting, so has realized flexible wiredly, has strengthened the flexibility of connecting up.
Because media center system can be carried out centralized control, scheduling and distribution to the multi-path digital TV signal that is input to wherein, thereby its practicality in family's digital network is very strong.
Fig. 4 is the flow process of Web TV implementation procedure.Workflow between media center system and the digital TV set-top box, step is as follows:
(s1) when client enters the Web TV function, client at first sends connection request to media center system.
(s2) media center system is under situation working properly, the connection request of customer in response end, and set up network and connect.
(s3) after network connected foundation, client sent " the rendition list request " to media center system.Media center system is replied this request, sends all channel informations of current Digital Television, comprises the needed PID of channel, channel name and transmission stream decoding (Packet Identifier).Client receives these programme informations and is kept at this locality.
(s4) client sends the playing request order to media center system, comprises the channel that will play in the playing request order.
(s5) media center system sends the transmit flow data of this channel according to described playing request order, and the Web TV player uses the pairing PID of this channel that the transmit flow data decoding is play.
The concrete course of work of media center system is as follows:
The monitoring modular of media center inside is transmitted to scheduler module with the request of client after the request that detects client, select a tuner that meets the requirements of the customers by scheduler module from tuner pool.Then by the tuner of choosing from be input to multi-channel TV signals wherein, select the client and want the television analog signals therewith received, and send it to decoder with the corresponding connection of the tuner of being chosen, by decoder this TV signal is decoded.TV digital signal behind decoder decode sends it to clients corresponding by distribution module.The TV digital signal that is sent to is decoded and play by the network player of client.
(s6) when client was changed the platform operation, client sent the playing request order to media center system once more, and this order comprises the channel that client is chosen.Its processing mode is identical with the process of beginning playing network television.
(s7) when client need show EPG (electric program menu) information, client sends " EPG request " order to media center system, and the media center system response concurrent send all EPG information.
(s8) when client wants is carried out PVR (personal digital video recorder) performance recording, client sends the performance recording order to media center system, this order comprises the channel of recording, the beginning and ending time point of recording, time period or can record from the current time, the media center system response is also carried out performance recording to the channel and the recording time of appointment.When the client button was selected to stop to record, transmission was ceased and desisted order, and then media center system stops performance recording.
(s9) when client is selected to exit network TV, client sends to media center system and closes connection request, and the media center system response also disconnects connection.
Media center system of the present invention except being applied in the above-mentioned Web TV, can also be applied in fields such as the network media.
Below in conjunction with Fig. 5, the workflow when media center system of the present invention is applied to the network media is described once.
(T1) when client enters network media function, client terminal start-up IGRS protocol stack, it is interconnected that then client device and media center are carried out smart machine, finds method, apparatus, subscribing service and service, releases news.Obtain the media file of sharing on the media center server by the IGRS agreement.By network resource manager these media files are sorted out processing again, media file has: picture, music and video.
(T2) client goes up the media file that shows according to terminal UI interface (user interface), selects the media file of oneself liking.
(T3) digital TV set-top box sends the request of playing specified file by the IGRS agreement.Media center system sends media stream data to digital TV set-top box.
(T4) client receives the media stream data that sends over from media center system, according to the type selecting player of media file, media stream data is sent to the player decoding play.
As long as a startup IGRS protocol stack, IGRS protocol stack just always in background work, take hardware resource and do not discharge.The digital TV set-top box terminal can be upgraded local listed files information according to the file situation of the current storage of media center system constantly by the IGRS protocol stack.
For the operating process of digital TV set-top box end, then can carry out in the following manner.When mobile devices such as USB device and portable hard drive were inserted into digital TV set-top box, one start of digital TV set-top box terminal just started equipment control monitoring programs such as USB device and portable hard drive.In case terminal detects the insertion of mobile device, then terminal is with regard to this equipment of horse back carry.During local resource manager, the media file on the movable storage device is sorted out management in operation, respectively it is saved in picture in the explorer, music, the video file information structural array according to the classification of media file.
When entering into " local media ", UI shows the local media listed files respectively, and client is operated by remote controller key, selects the file oneself liked, selects corresponding player according to the file type of selecting, and plays.
Certainly; embodiments of the invention also can have a variety of; under the situation that does not deviate from embodiments of the invention spirit and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to embodiments of the invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of embodiments of the invention.
Claims (10)
1. media center system is characterized in that comprising:
Tuner pool comprises at least two tuners, and described tuner is selected useful television analog signals therewith from multi-channel TV signals;
Decoder bank comprises at least two decoders, and described decoder is connected with described tuner is corresponding; Described decoder is decoded to described useful television analog signals therewith, the output TV digital signal;
Scheduler module is connected with described tuner pool, according to the request of client, controls the operating state of tuner in the described tuner pool;
Distribution module is connected with described Decoder bank, and the TV digital signal that Decoder bank is exported is sent to corresponding client;
Correction module is connected with described tuner pool, is used for when certain equipment of described tuner pool is made mistakes the equipment of makeing mistakes in the described tuner pool being carried out error correction;
Wherein, described tuner pool and described Decoder bank are concentrated and are put together.
2. media center system according to claim 1 is characterized in that also comprising:
Monitoring modular is used to monitor the request of client, and the request of client is transmitted to scheduler module.
3. media center system according to claim 2 is characterized in that also comprising:
Input module is connected with the input of described monitoring modular, is used to import the request of client.
4. media center system according to claim 3 is characterized in that also comprising:
Output module is connected with described distribution module, is used to export the TV digital signal of distribution module distribution.
5. media center system according to claim 4 is characterized in that also comprising:
Transport module is connected with described output module, is used for the TV digital signal of transmission is carried out encoding and decoding.
6. media center system according to claim 5 is characterized in that:
Described transport module is: power line carrier or WLAN (wireless local area network) or Ethernet.
7. media center system according to claim 6 is characterized in that also comprising:
Power module is used to described tuner, decoder, scheduler module and distribution module that power supply is provided.
8. the implementation method of a media center system is characterized in that may further comprise the steps:
Receive the request of client, the control corresponding tuner in tuner pool is carried out work;
When certain equipment in the described tuner pool is made mistakes, directly the equipment of makeing mistakes in the described tuner pool is carried out error correction;
In running order tuner is selected the television analog signals therewith that client needs from the multi-channel television analog signal that receives;
The television analog signals therewith that meets the client requirement is decoded the output TV digital signal;
Decoded TV digital signal is sent to corresponding client.
9. the implementation method of media center system according to claim 8 is characterized in that, is also to comprise before client is distributed corresponding tuner in the request according to client:
The request of monitoring client, and having monitored after client sends request, the request of client is transmitted.
10. the implementation method of media center system according to claim 9 is characterized in that, described method also comprises:
Decoded TV digital signal is exported to client.
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| CN2007101523656A CN101399972B (en) | 2007-09-28 | 2007-09-28 | Media center system and implementation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888543A (en) * | 2010-06-10 | 2010-11-17 | 青岛海信宽带多媒体技术有限公司 | Method and device for transmitting television signals in local area network (LAN) |
| CN101873471B (en) * | 2010-06-12 | 2012-08-15 | 中山大学 | Digital home multimedia playing system and method thereof |
| CN102098563A (en) * | 2011-02-22 | 2011-06-15 | 深圳市同洲电子股份有限公司 | Interactive digital television system and method as well as digital television receiving terminal and client |
| CN103188343A (en) * | 2013-01-09 | 2013-07-03 | 北京卓越信通电子股份有限公司 | Program control method of sound source server and corresponding device |
| CN103199895B (en) * | 2013-01-09 | 2015-08-12 | 北京卓越信通电子股份有限公司 | A kind of audio frequency remote access and Play System |
| CN115174989A (en) * | 2022-06-27 | 2022-10-11 | 海宁奕斯伟集成电路设计有限公司 | Television signal processing equipment, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989706A (en) * | 2005-04-28 | 2007-06-27 | 松下电器产业株式会社 | Digital broadcasting receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1989706A (en) * | 2005-04-28 | 2007-06-27 | 松下电器产业株式会社 | Digital broadcasting receiver |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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