CN101998173A - Distributed media sharing play controller as well as media play control system and method - Google Patents
Distributed media sharing play controller as well as media play control system and method Download PDFInfo
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- CN101998173A CN101998173A CN2009101898001A CN200910189800A CN101998173A CN 101998173 A CN101998173 A CN 101998173A CN 2009101898001 A CN2009101898001 A CN 2009101898001A CN 200910189800 A CN200910189800 A CN 200910189800A CN 101998173 A CN101998173 A CN 101998173A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
- H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
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- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
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Abstract
The invention discloses a distributed media sharing play controller. The distributed media sharing play controller is in communication connection with a network and a user terminal and comprises a first signal interface, a second signal interface, a data storage module and a main control module, wherein the first signal interface is used for receiving a media signal in the network; the second signal interface is used for receiving a control instruction of the user terminal; the data storage module is used for storing the media data in the media signal; and the main control module is used for sending the media data stored by the data storage module to the user terminal through the second signal interface after the second signal interface receives the control instruction of the user terminal. The invention also provides a media play control system and method, so that the interactive service needs such as demanding of the user and the like are not influenced by a server or the input/output bandwidth and large-scale media information play control of the system is realized.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of disributed media and share Broadcast Control device, system of playing and controlling media and method.
Background technology
In recent years, along with development of internet technology and people's demand, video request program becomes new technical concerns point gradually.Video request program roughly can reduce two kinds:
A kind of being based on the complete IP network realizes that as Fig. 1, the user to the Internet, carries out the program request of video by network insertions such as broadband network DSL, optical fiber access or wlan on the internet.
A kind ofly be based on the interactive medium business that broadcasting and TV (digital TV network) combine with communication network (IP network), as IPTV business based on digital television system.
The inventor is in realizing process of the present invention, find that there is following shortcoming at least in prior art: no matter be scheme one or scheme two, in interactive services such as support mass users program request, system is subject to the quantity of server and the gateway bandwidth of IP metropolitan area network.
Summary of the invention
The embodiment of the invention provides a kind of disributed media to share studio equipment, system of playing and controlling media and method, so that system is not subjected to the restriction of the quantity and the gateway bandwidth of server, thereby realizes large-scale media information Broadcast Control.
According to an aspect of the present invention, provide a kind of disributed media to share the Broadcast Control device, described disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described disributed media are shared the Broadcast Control device and are communicated to connect, described user terminal and described disributed media are shared the Broadcast Control device and are communicated to connect, and described disributed media is shared the Broadcast Control device and comprised first signaling interface, secondary signal interface, data memory module and main control module;
Wherein, described first signaling interface is used for receiving described hfc plant HFC signal;
Described secondary signal interface is used to receive the control command of described user terminal;
Described data memory module is used for storing the media data of described HFC signal;
Described main control module is used for after the described secondary signal interface of reception receives the control command of described user terminal, and the described media data that described data memory module is stored sends to sending described user terminal by described secondary signal interface.
According to a further aspect in the invention, a kind of system of playing and controlling media also is provided, comprise that a plurality of disributed medias share the Broadcast Control device, user terminal and hfc plant, described a plurality of disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described a plurality of disributed media are shared the Broadcast Control device and are communicated to connect, and described user terminal and described a plurality of disributed media are shared the Broadcast Control device and communicated to connect
Wherein, described hfc plant is used to provide the HFC signal;
Described a plurality of disributed media is shared the HFC signal that the Broadcast Control device is used to receive described hfc plant, and store media data in the described media signal, and when receiving the control command of described user terminal, the media data of described storage is sent to described user terminal.
According to a further aspect in the invention, a kind of medium broadcast control method also is provided, described medium broadcast control method is applied to comprise in a plurality of disributed medias shared Broadcast Control device, user terminal and the network architecture, described network comprises hfc plant, described disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described disributed media are shared the Broadcast Control device and are communicated to connect, described user terminal and described disributed media are shared the Broadcast Control device and are communicated to connect, and described method comprises:
The shared Broadcast Control device of described disributed media receives the HFC signal in the described hfc plant;
The shared Broadcast Control device of described disributed media is stored the media data in the described HFC signal;
When the shared Broadcast Control of described disributed media receives the control command of described user terminal transmission, the media data of described storage is exported to described user terminal.
The embodiment of the invention is shared the Broadcast Control device owing to increase disributed media between hfc plant and user terminal, media data in the HFC signal of interactive service devices such as server program request in the hfc plant system is stored, when receiving user's control command, media data with needs is sent to the user again, thereby when the interactive service demands such as program request of mass users occurring, can avoid the server in the hfc plant to be visited by mass users, that is to say, interactive service demands such as user's program request can not be subjected to the influence of server in the hfc plant, be not subjected to the influence of gateway bandwidth, thus the large-scale media information Broadcast Control of the system of realization.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use in prior art or the embodiment description below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is based on the applied environment figure of the media services network of plurality of access modes;
Fig. 2 is based on the applied environment figure of the cable TV network of optical fiber and coaxial cable;
Fig. 3 is based on the applied environment figure of optical fiber PON (the Passive Optical Network) system of Edge Server;
Fig. 4 is based on the applied environment figure of the cable television system of Edge Server;
Fig. 5 is first kind of applied environment figure that the disributed media of the embodiment of the invention is shared the Broadcast Control device;
Fig. 6 is second kind of applied environment figure that the disributed media of the embodiment of the invention is shared the Broadcast Control device;
Fig. 7 is that the disributed media of the embodiment of the invention is shared the schematic diagram that the Broadcast Control device is formed the network of cooperation
Fig. 8 be the embodiment of the invention a double-layer structure share the schematic diagram of the network of the cooperation that the Broadcast Control device forms by disributed media;
Fig. 9 is the copy amount control table that the distributed DHT based on sandwich construction of the embodiment of the invention searches;
The schematic diagram in the territory that Figure 10 specifically deposits for the distributed DHT index based on sandwich construction of the embodiment of the invention;
Figure 11 is the flow chart of the lookup method of the embodiment of the invention;
Figure 12 is the practical application figure of the lookup method of the embodiment of the invention;
Figure 13 is the adding of the memory node of the embodiment of the invention and the schematic diagram of leaving away;
Figure 14 is the flow chart of the media playing method of the embodiment of the invention;
Figure 15 is the schematic diagram that is applied to digital television system of the media playing method of the embodiment of the invention;
Figure 16 is the practical application figure of the media playing method of the embodiment of the invention;
Figure 17 is the structure chart that the disributed media of the embodiment of the invention is shared the Broadcast Control device;
Figure 18 is another structure chart that the disributed media of the embodiment of the invention is shared the Broadcast Control device;
Figure 19 is the distributed storage of the embodiment of the invention and Distributed Calculation agency's network layer Organization Chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
How to solve the great demand of user to server and memory, the present invention proposes, end at network, (Hybrid Fiber-Coaxial is HFC) in the network, or digital subscriber line (Digital Subscriber Line as hybrid fiber/ coax, HFC, DSL) in the access network, or passive fiber (PassiveOptical Network, PON) in the access network, the shared Broadcast Control device of increase disributed media.This disributed media is shared the Broadcast Control device and is deployed in the sub-district, or in the corridor, for a plurality of users provide medium Broadcast Control service, and metadata cache (comprising uplink and downlink), service agent can also be provided.Share the Broadcast Control device owing between hfc plant or PON network and user terminal, increase a plurality of disributed medias, the HFC signal of interactive service devices such as server program request in hfc plant or the PON network system or the media data in the PON signal are stored, when receiving user's control command, media data with needs is sent to the user again, thereby when the interactive service demands such as program request of mass users occurring, can avoid the server in hfc plant or the PON network to be visited by mass users, that is to say, interactive service demands such as user's program request can not be subjected to the influence of server in hfc plant or the PON network, be not subjected to the influence of gateway bandwidth, thus the large-scale media information Broadcast Control of the system of realization.
Adopt the present invention, a plurality of users (or family) can a public agent equipment (disributed media is shared the Broadcast Control device), the user shares the Broadcast Control device without the maintenance and management disributed media simultaneously, the shared Broadcast Control device portion of disributed media can be with the data information memory of network, to support the user's time-shift demand simultaneously.
Disributed media is shared the support of Broadcast Control device network signal is converted to signal form or the coding that subscriber household equipment needs, and has reduced the needed upgrading cost of subscriber household equipment access network.
Disributed media is shared the Broadcast Control device; unification is managed by network provider; therefore, can accomplish perfect copyright management, share the Broadcast Control device by disributed media; the media information of distribution; artistic work can be accomplished perfect knowledge producing region protection, and disributed media is shared the Broadcast Control device; be that mass users provides the channel of digital media information consumption, this makes the easier user's of obtaining of consumption price the acceptance of digital product.
As Fig. 2, at present, digital TV network arrives family to the sub-district, what generally adopt is coaxial cable, hybrid fiber/ coax, HFC (Hybrid Fiber-Coaxial, HFC) network is in population inhabitation compact district, have users up to ten thousand, share a hfc plant, if when a lot of user carries out demand (telecommunication) service simultaneously, the server of hfc plant can not support.HFC is made up of fiber optic backbone, coaxial cable branch line and subscriber distribution network network three parts usually, and the programme signal of coming out from cable TV station becomes light signal earlier and transmits at main line; Behind the user area, light signal is converted to the signal of telecommunication, after distributor distributes, deliver to the user by coaxial cable.
Fig. 3 is based on the system that optical fiber inserts, and IP is carried on the photosystem, and directly access network carries out communication with data service center, and this system carries out demand (telecommunication) service, is subject to the number of servers of data service center and the outlet bandwidth of data service center equally.
Fig. 3 is based on the connecting system of optical fiber PON, for the samll cities and towns of living and comparatively disperseing, more suitable, but for the intensive sub-district of living, or live in the resident family of high-rise apartment building formula building, every family introduces optical fiber and inserts, and is unrealistic at present, and, in time arrived subscriber household, the equipment that directly inserts by optical fiber still is fewer at present, and light need be inserted conversion of signals is the signal of telecommunication, as ether interface, adsl interface, coaxial cable interface.
Fig. 4, the network architecture based on Edge Server, in order to support the mass users demand (telecommunication) service,, be deployed to the edge of IP network with data server, by edge orthogonal amplitude (Quadrature AmplitudeModulation, QAM) equipment is converted to the coaxial cable signal with the IP data, offers the domestic consumer, though this clock scheme increases the quantity of server, adopts distributed deployment to improve overall bandwidth simultaneously.
But this method in the deployment of server, need be looked for machine room and settle data server, but its bandwidth still is limited and outlet bandwidth server.
In order to support large-scale magnanimity demand (telecommunication) service, the present invention proposes, and the transmission line in edge network seals in disributed media and shares the Broadcast Control device, or in the terminal equipment of Access Network, increases disributed media and share the Broadcast Control device.
As Fig. 5, in cable TV network, in coaxial cable, seal in disributed media and share Broadcast Control device (sharing the Broadcast Control device), this disributed media is shared the Broadcast Control device, obtains the media business data from HFC radio network or PON network (first signal input interface), and store inner data storage into, data storage can be storage mediums such as internal memory, flash memory, hard disk.
Disributed media is shared the Broadcast Control device, information index is provided, mutual with the set-top box or the PC of subscriber household, after the shared Broadcast Control device of disributed media receives user's instruction, with the media business data of storage, be encapsulated in the signal form of transmission over coaxial cable, be transferred to the user as IP_QAM, just the interface between user and the shared Broadcast Control device is the secondary signal output interface.
The set-top box of subscriber household, and disributed media shares mutual between the Broadcast Control device, can be various ways carry out alternately (secondary signal is imported, output interface) as the IP_QAM agreement, or other is based on the transmission communication agreement of coaxial cable.
Share the Broadcast Control device because of disributed media and dispose, as apartment user's corridor, therefore near subscriber household, can not change on present user's the basis of set-top box, adopt telephone wire, or wireless WLAN, WI_FI, Bluetooth protocol, or the door bell and button system of corridor, set up the control channel of user to the shared Broadcast Control device of disributed media, just the user is to the input of the 3rd signal, the output interface of sharing the Broadcast Control device, or, set up the user shares the Broadcast Control device to disributed media control channel based on the IP_QAM agreement.
In a hfc plant, or on coaxial cable, can dispose a plurality of disributed medias and share the Broadcast Control device according to number of users, disributed media is shared between the Broadcast Control device, taking one or more channels or frequency carries out alternately, and disributed media is shared the agreement (input of first signal, output interface) that adopts P2P between the Broadcast Control device, or other protocol modes carry out the interchange of information, carries out sharing of media information, alternately, or media information search addressing.
In the present embodiment, first signal input output interface, refer to that disributed media is shared between the Broadcast Control device or disributed media is shared the Broadcast Control device to the interface between the server, disributed media is shared the Broadcast Control device and is obtained media data by this interface from server, also can share the Broadcast Control device from other disributed media and obtain media data;
The secondary signal input/output interface refers to that disributed media shares the Broadcast Control device to the HFC interface between the user, the user by this interface acquisition can program request digital television signal;
The 3rd signal input output interface, refer between the shared Broadcast Control device of disributed media, or disributed media is shared the Broadcast Control device to the non-HFC interface between the user, such as, ether interface, the user by this interface obtain can program request digital television signal or other digital signals alternately, disributed media is shared the Broadcast Control device by this interface, by the Internet interaction data; Described disributed media is shared between the Broadcast Control device can pass through the HFC signal, or the ether signal, or the DSL signal, or passes through the media data of the described storage of internet network interaction.
As Fig. 6, disributed media is shared the Broadcast Control device, and internet is provided network access facility, and the user is transferred in the network after the data of oneself can being shared Broadcast Control device buffer memory through disributed media.
As Fig. 6, disributed media is shared the Broadcast Control device, for the user provides the service of P2P or media buffer, and by internet NetFind media data, or buffered media data.
As Fig. 6, disributed media is shared between the Broadcast Control device, by the internet network, form huge media management shared network, a plurality of disributed medias are shared the Broadcast Control device, by front-end business platform (also can be referred to as center management server), form medium Broadcast Control network, the front-end business platform is shared the Broadcast Control device according to the temperature of medium to the disributed media of medium and is adjusted deployment.
As Fig. 7, disributed media is shared the Broadcast Control device, deployment according to network, in networking, can regard a kind of tree network structure as, or a kind of network configuration of grape (on the wall scroll network line that possesses, there are a plurality of disributed medias to share the Broadcast Control device, the grapy structure of class, a kind of distortion of tree structure).
According to fashion trend, user's program request behavior meets sixteen principles substantially, and the user a time period 80% can see 20% program, therefore, hot programs must have a plurality of copies, so that the user watches, 80% cold program on the other hand, need carry out Search and Orientation, in yet another aspect, local cold program, in the overall situation, also might be the thermal center order.
Search and manage copy for convenience, the embodiment of the invention proposes the media management mechanism based on multilayer DHT index.
As Fig. 8, disributed media is shared the Broadcast Control device, according to configuration, or network transfer delay or bandwidth, form different territories (area), each territory, one or more host nodes (MASTER) and some node nodes are arranged, form one territory, the media data of the overall situation is set up index on the MASTER node, at the MASTER index, only navigate to the territory, in the territory, do not carry out index.In the present embodiment, share the Broadcast Control device for disributed media and can be used as MASTER node or some node nodes.
In the area territory, each node is set up (Distributed Hash Table) the dht index in this territory.
As Fig. 9, on the MASTER node, set up index, the number of the backup of hot programs may have very many, in the area territory, each node is set up (Distributed Hash Table) the DHT index in this territory, at this index place, note the number of copy at the corresponding levels, this copy is arranged if any what AREA.
As Figure 10, the person of searching produces the numeral less than the copy number, and searches data name associating, produces a KEY, finds a territory of depositing this copy according to this KEY.
The index of copy, through HASH, hash is distributed to many disributed medias and shares the Broadcast Control device;
Because coding rule is certain, if therefore just inquire about the operation of copy address, rather than increase the operation of deletion copy, inquiry, can inquire about the number of copy, but tentative directly to the shared Broadcast Control device proposition of the disributed media of copy address query requests.
When content very popular, the quantity of copy is a lot, the index occupation space that keeps copy is bigger, can arrange, when copy amount surpasses 100 or other set points the time, only provide set point as 100 index, index is carried out load sharing, dynamically index is based upon the light disributed media of load and shares on the Broadcast Control device.
As Figure 11, provide the step of a concrete lookup method:
Step 111 finds the computer or the network equipment (AreaNumDHT) that stores distributed AREA copy DHT table according to the context number HASH of data, obtains the number of copy; (table in the query graph 9)
Step 112, according to the number of copy, can obtain copy Index numbering by HASH (data name+copy numbering), find the territory (AreaIndexDHT) that is specifically stored copy, this step can be carried out load sharing dynamically according to the load of concrete AREA; (table among inquiry Figure 10)
Step 113 has obtained the MASTER node (AreaMaster) of concrete AREA, and the MASTER node (AreaMaster) among the AREA for the outer node of AREA, provides the agency.
Step 114, MASTER node (AreaMaster) finds the position (AreaNode) of copy, offers outside node, when external node is provided, provides load sharing control, for the node of high load capacity, carries out balance.
Step 115, the node in this territory (AreaNode) is searched copy, directly searches the node in this territory, can search to step 111 then at first in this domain lookup.
Figure 12 is the practical application figure of Figure 11.In Figure 12, the step S111 of empty frame 1 corresponding Figure 11, by that analogy.
There are how many territories to preserve the copy of data, need add up and appraise and decide, each MASTER node, count the copy that preserve in this territory, this information is reported " Area copy number DHT (inquiry of copy number is provided) " of being responsible for this section HASH spatial data statistics respectively, gather by this node and calculate.Concrete algorithm can be used for reference the MAPREDUCE algorithm.
In the territory, the Master node provides, and to the inquiry proxy of external domain, the node in this territory is in this domain lookup information, as searching on area.
In the territory, set up copy number and the DHT index of life cycle in the territory, search node, at first search the number of copy in the territory, find desired node then.
The generation of copy, the person of searching, when searching the DHT index of copy number and life cycle, check the relation of copy amount and copy user number, be higher than copy amount if find the use number of copy, while is according to the memory space and the gateway bandwidth conditions of this node, whether decision preserves this copy, if this copy is preserved in decision, after successfully obtaining copy, to the node of preserving this copy number and the DHT index concordance list of life cycle, ask more latest copy number and the DHT concordance list of life cycle.This node according to the adding and the release situation of copy, is adjusted, or upgrades the node index of preserving these nodes.
Withdrawing from of copy, copy adds fashionable, has obtained the life cycle of copy, after arriving life cycle, to the node of preserving copy number and the DHT concordance list of life cycle, this copy on this this node of request deletion.
Preserve the node of copy number and the DHT concordance list of life cycle, after the agreement, adjust the DHT concordance list of copy amount and copy, guarantee that the DHT concordance list of copy is kept correct sensing.
Distributed systems, the correct sensing that needs to preserve index, and the disributed media of preservation copy is shared the Broadcast Control device, the more needs of latest copy are arranged, and simultaneously disributed media is shared that the Broadcast Control device might go offline and is waited unusual generation, therefore, index search failure, be inevitable.But need the correctness of keeping index as far as possible.
As Figure 13, provided memory node 1 and left away, memory node 5 adds the process of the sensing memory node 5 of index node 1.
The flow chart of the media playing method that Figure 14 provides for the embodiment of the invention.In the present embodiment, described medium broadcast control method is applied to comprise that a plurality of disributed medias share Broadcast Control device, user terminal, hfc plant and the PON network architecture.
Step S140, described disributed media share the Broadcast Control device and receive the HFC signal in the described hfc plant or receive PON signal in the described PON network;
Step S142, the shared Broadcast Control device of described disributed media is stored the media data information in described HFC signal or the PON signal;
When step S144, described disributed media share Broadcast Control and receive the control command that described user terminal sends, the media data of described storage is packaged into HFC signal or ether signal, exports described user terminal to.
In the present embodiment, first disributed media that described a plurality of disributed media is shared in the Broadcast Control device is shared the Broadcast Control device by the HFC signal, or the ether signal, or the DSL signal, or by the internet network, with the media data of the shared mutual described storage of Broadcast Control device of second disributed media; And the shared Broadcast Control device of first disributed media in the shared Broadcast Control device of described a plurality of disributed media is sent to described user terminal according to the control command of described user terminal with media data described in the shared Broadcast Control device of described second disributed media.
Figure 15 is applied to the schematic diagram of digital television system for the present invention, and digital television system possesses broadcast characteristic.
Step 151, by digital television channel, hfc plant, satellite channel, with hot programs, PUSH shares in the Broadcast Control device to disributed media in advance, shares the Broadcast Control device and passes through down-conversion, digital signal is extracted, store programme information into disributed media and share in the internal storage of Broadcast Control device, along with the development of disk technology, the cost and price of jumbo disk is also more and more lower, the large-scale disributed media of disposing is shared the Broadcast Control device, is not too high for the cost requirement of operator.
In the step 151, by digital television channel, can also transmit the EPG generator code of program, this program code is shared the Broadcast Control device at disributed media and is carried out the corresponding program of indication user's program request.
In step 151, by digital television channel, can also transmit the program code execution that disributed media is shared the Broadcast Control device, share the program of Broadcast Control device to disributed media and upgrade.
Obviously, the DVB-C business platform needs the control disributed media to share the program code upgrading of Broadcast Control device, need carry out strict information encryption to this passage, resists illegal invasion.
Step 152, disributed media is shared the Broadcast Control device, on frequency and channel that the user can receive, generates the EPG information that subscriber equipment can receive, or other interactive information, as the WEB page.
Step 153, the user checks by the EPG or the web page or searches the programme information that need watch, after finding, assigns and watch instruction.
Step 154, disributed media are shared the program of Broadcast Control device with storage inside, or as the program of agency at the shared Broadcast Control device of other disributed media, read out, and generate the signal form that the user can receive, and are sent to the user.
Step 155, disributed media is shared the Broadcast Control device, by hfc plant, or the INTERNET network, user's program request record is instant, or after the bulk statistics, be pooled to charge system, the user is carried out accounting management.
Step 156, Subscriber Management System, by user's management, management is paid the fees, authority, and with charge system interlock, the user is managed.
Figure 16 is the practical application figure of Figure 15.In Figure 16, the step S151 among 1 corresponding Figure 15 in the empty frame, by that analogy.
Figure 17, the present invention can be applied in the cable television system, disributed media is shared Broadcast Control device 162 and is communicated to connect with network 161 and user terminal 163 respectively, disributed media is shared Broadcast Control device 162 and is comprised first signaling interface 1620, down conversion module 1621, quadrature amplitude demodulation module 1622, data memory module 1623, main control module 1624, quadrature amplitude modulation module 1625, up-conversion module 1626, secondary signal interface 1627 and the 3rd signaling interface 1628.In the present embodiment, disributed media is shared Broadcast Control device 162, also to the HFC signal, provides the function of transparent transmission.In the present embodiment, network 161 is a hfc plant.
In the present embodiment, be carried on the digital media information on the hfc plant 161, it is the HFC signal, behind first signaling interface 1620, after passing through down conversion module 1621 and quadrature amplitude demodulation module 1622 again, media data in the digital media information is extracted out, is stored in the data memory module 1623;
Down conversion module 1621 is used for the HFC signal of the media signal of the network of described first signaling interface reception is carried out frequency translation; Quadrature amplitude demodulation module 1622 is used for the signal after the described down conversion module conversion is carried out quadrature amplitude demodulation, to obtain media data.
In the present embodiment, down conversion module 1621, quadrature amplitude demodulation module 1622, quadrature amplitude modulation module 1625, the function of up-conversion module 1626 is familiar with by those skilled in the art, no longer describes herein.
The HFC signal can be crossed the shared Broadcast Control device of disributed media by transparent transmission, particularly when the shared Broadcast Control device of disributed media breaks down, does not influence the user and watches other broadcast programs.
In the present embodiment, cable television system can also comprise that a plurality of disributed medias share the Broadcast Control device, first signaling interface 1620 that disributed media is shared in the Broadcast Control device 162 can communicate to connect with the shared Broadcast Control device of other disributed media, the disributed media that this first signaling interface 1620 receives other shares that the Broadcast Control device sends when calling disributed media and sharing the instruction of media data of the storage in the Broadcast Control device 162, this disributed media is shared the media data that the main control module 1624 in the Broadcast Control device 162 will store and is packaged into the HFC signal, is sent to this other the shared Broadcast Control device of disributed media via described first signaling interface 1620.Or, directly by described first signaling interface 1620 directly under the call instructions with main control module 1624, the media data of storage is packaged into the HFC signal, and is sent to this other disributed media and shares the Broadcast Control device.
Certainly, the 3rd signaling interface 1628 that disributed media is shared in the Broadcast Control device 162 can communicate to connect with the shared Broadcast Control device of other disributed media, the disributed media that the 3rd signaling interface 1628 receives other shares that the Broadcast Control device sends when calling disributed media and sharing the instruction of media data of the storage in the Broadcast Control device 162, this disributed media is shared the media data that the main control module 1624 in the Broadcast Control device 162 will store and is packaged into the ether signal, is sent to this other the shared Broadcast Control device of disributed media via described the 3rd signaling interface 1628.Or, directly by described the 3rd signaling interface 1628 directly under the call instructions with main control module 1624, the media data of storage is packaged into the ether signal, and is sent to this other disributed media and shares the Broadcast Control device.
Figure 18, the present invention can also be applied to passive fiber (Passive Optical Network, PON) in the network access system, disributed media is shared Broadcast Control device 172 and is communicated to connect with network 171 and user terminal 173, and disributed media is shared Broadcast Control device 172 and comprised first signaling interface 1720, network protocol module 1722, data memory module 1723, main control module 1724, quadrature amplitude modulation module 1725, up-conversion module 1726, secondary signal interface 1727 and the 3rd signaling interface 1728.Disributed media is shared Broadcast Control device 172, utilizes broadcast channel to receive data in the pon network, and storage, can also share the Broadcast Control device with other disributed medias in the network and form network, for the user provides the media business service.Should middlely use,, comprise being not limited to the Ethernet interface, DSL network interface, wlan network or the like simultaneously for user terminal provides network interface.When the shared Broadcast Control device of disributed media possessed wlan network, it can form wireless MESH network each other, utilizes Radio Link to carry out communication, interactive information each other.
In the present embodiment, first signaling interface 1720 receives the digital media information that is carried on the PON network, promptly, the PON signal, network protocol module 1722 detunes the digital media information that receives, and obtaining media data, and is stored in the data memory module 1723; In the present embodiment, first signaling interface 1720 can comprise the PON module, can be understood as and identifies the PON signal.
After secondary signal interface 1727 receives user's control command, this instruction is forwarded to main control module 1724, obtains the media data of storage from data memory module 1723 by main control module 1724 notice quadrature amplitude modulation modules 1725.In the present embodiment, after media data process quadrature amplitude modulation module 1725 and the up-conversion module 1726, up-conversion module 1726 is packaged into HFC signal by secondary signal interface 1727 with described media data with the media data after the frequency conversion, or, by the 3rd signaling interface 1628 described media data is packaged into ethernet signal, send on the channel of user's reception, receive for user terminal 173.In the present embodiment, secondary signal interface 1627 is the HFC interface.
In the present embodiment, passive fiber (Passive Optical Network, PON) network access system can also comprise that a plurality of disributed medias share the Broadcast Control device, first signaling interface 1720 that disributed media is shared in the Broadcast Control device 172 can communicate to connect with the shared Broadcast Control device of other disributed media, the disributed media that this first signaling interface 1720 receives other shares that the Broadcast Control device sends when calling disributed media and sharing the instruction of media data of the storage in the Broadcast Control device 172, the media data that main control module 1724 in the shared Broadcast Control device 172 of this disributed media will be stored is packaged into fiber-optic signal, be the PON signal, be sent to this other disributed media via described first signaling interface 1720 and share the Broadcast Control device.Or, directly by described first signaling interface 1720 directly under the call instructions with main control module 1724, the media data of storage is packaged into the PON signal, and is sent to this other disributed media and shares the Broadcast Control device.
Certainly, the 3rd signaling interface 1728 that disributed media is shared in the Broadcast Control device 172 can communicate to connect with the shared Broadcast Control device of other disributed media, the disributed media that the 3rd signaling interface 1728 receives other shares that the Broadcast Control device sends when calling disributed media and sharing the instruction of media data of the storage in the Broadcast Control device 172, this disributed media is shared the media data that the main control module 1724 in the Broadcast Control device 172 will store and is packaged into the ether signal, is sent to this other the shared Broadcast Control device of disributed media via described the 3rd signaling interface 1728.Or, directly by described the 3rd signaling interface 1728 directly under the call instructions with main control module 1724, the media data of storage is packaged into the ether signal, and is sent to this other disributed media and shares the Broadcast Control device.
A plurality of disributed medias are shared the Broadcast Control device, can pass through wlan network or local area network (LAN) or wireless MESH network, form the network of P2P, mutually interaction data.
Figure 19, along with the widespread deployment of the shared Broadcast Control device of disributed media, what user's information can be a large amount of stores in the network, and user's data is at first carried out buffer memory in network, and data finally store in the data center.
Disributed media is shared the Broadcast Control device, supporting simultaneously provides computing capability to the user, user's data and program are shared in the Broadcast Control device at disributed media and are moved, just with the computing of user on home computer or mobile phone or TV or game machine, load or share the Broadcast Control device by disributed media and act on behalf of computing, this mode, be actually disributed media is shared the node of Broadcast Control device as cloud computing, while, many computers of system call calculated for the user according to the situation of user's service log-on.
Sharing the Broadcast Control device because of disributed media is widely deployed in user's the sub-district or corridor, its power supply management is not by user's control simultaneously, therefore shares the network that the Broadcast Control device is formed by disributed media, and it has stable, maintenance update is undertaken by the network personnel of specialty, convenient for users to use, possessed certain convergence ratio simultaneously, divide on each user, input is little, easily according to user's growth, progressively invest flexibly simultaneously, operation and management also is convenient in operator.
The present invention, can regard as, by operator,, disposed a huge P2P network in position near the user, node disributed media in this network is shared Broadcast Control device (peer), be to provide and dispose, manage maintenance by operator, this architecture simultaneously by operator, avoided forming the variety of problems of P2P network, can not get effectively safeguarding or the like as copyright by user's computer.
Disributed media among the present invention is shared the Broadcast Control device, has possessed user interface form flexibly simultaneously, can support user's television set, computer, and mobile phone or the like, convenient for users to use.
The technical scheme that the embodiment of the invention provides, share the Broadcast Control device owing between hfc plant or PON network and user terminal, increase a plurality of disributed medias, the HFC signal of interactive service devices such as server program request in hfc plant or the PON network system or the media data in the PON signal are stored, when receiving user's control command, media data with needs is sent to the user again, thereby when the interactive service demands such as program request of mass users occurring, can avoid the server in hfc plant or the PON network to be visited by mass users, that is to say, interactive service demands such as user's program request can not be subjected to the influence of server in hfc plant or the PON network, be not subjected to the influence of gateway bandwidth, thus the large-scale media information Broadcast Control of the system of realization.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (16)
1. a disributed media is shared the Broadcast Control device, it is characterized in that, described disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described disributed media are shared the Broadcast Control device and are communicated to connect, described user terminal and described disributed media are shared the Broadcast Control device and are communicated to connect, and described disributed media is shared the Broadcast Control device and comprised first signaling interface, secondary signal interface, data memory module and main control module;
Wherein, described first signaling interface is used for receiving described hfc plant HFC signal;
Described secondary signal interface is used to receive the control command of described user terminal;
Described data memory module is used for storing the media data of described HFC signal;
Described main control module is used for after the described secondary signal interface of reception receives the control command of described user terminal, and the described media data that described data memory module is stored sends to sending described user terminal by described secondary signal interface.
2. disributed media according to claim 1 is shared Broadcast Control, it is characterized in that, also comprises:
Down conversion module, the digital media information that is used for the HFC signal of hfc plant that described first signaling interface is received carries out frequency translation;
The quadrature amplitude demodulation module is used for the signal after the described down conversion module conversion is carried out quadrature amplitude demodulation, to obtain media data;
Described data memory module is used to store the media data that described quadrature amplitude demodulation module obtains.
3. disributed media according to claim 1 is shared the Broadcast Control device, it is characterized in that, described disributed media is shared the Broadcast Control device and also is connected with PON network service, and described disributed media is shared the Broadcast Control device and also comprised:
Described first signaling interface also is used for receiving the PON signal of described PON network;
Network protocol module is used for the PON signal of described reception is detuned, to obtain media data;
Described data memory module is used to store the media data that described network protocol module obtains.
4. disributed media according to claim 1 is shared the Broadcast Control device, it is characterized in that, also comprises:
The quadrature amplitude modulation module is used for obtaining described media data from described data memory module, and modulating after described main control module receives described secondary signal interface and receives the control command of described user terminal;
The up-conversion module is used for the media data after the described quadrature amplitude modulation module modulation is carried out frequency translation, to be transformed into the media data that described user terminal can receive;
Described secondary signal interface is used for the media data after the described frequency conversion, is sent to described user terminal after being packaged into another HFC signal.
5. disributed media according to claim 4 is shared the Broadcast Control device, it is characterized in that, also comprises:
The 3rd signaling interface is used for the media data after the described frequency conversion is packaged into the ether signal, and is sent to described user terminal.
6. disributed media according to claim 1 is shared the Broadcast Control device, it is characterized in that, described disributed media is shared the Broadcast Control device and is also communicated to connect with the shared Broadcast Control device of other disributed media, described first signaling interface also is used for when receiving described other disributed media and share the instruction of the media data that calls storage of Broadcast Control device, the media data of described storage is encapsulated another HFC signal or another PON signal, and be sent to described other disributed media and share the Broadcast Control device, or described the 3rd signaling interface also is used for when receiving described other disributed media and share the instruction of the media data that calls storage of Broadcast Control device, the media data of described storage is packaged into the ether signal, and is sent to described other disributed media and shares the Broadcast Control device.
7. system of playing and controlling media, it is characterized in that, comprise that a plurality of disributed medias share the Broadcast Control device, user terminal and hfc plant, described a plurality of disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described a plurality of disributed media are shared the Broadcast Control device and are communicated to connect, and described user terminal and described a plurality of disributed media are shared the Broadcast Control device and communicated to connect
Wherein, described hfc plant is used to provide the HFC signal;
Described a plurality of disributed media is shared the HFC signal that the Broadcast Control device is used to receive described hfc plant, and store media data in the described media signal, and when receiving the control command of described user terminal, the media data of described storage is sent to described user terminal.
8. system according to claim 7, it is characterized in that, described system of playing and controlling media also comprises the PON network, described PON network and described a plurality of disributed media are shared the Broadcast Control device and are communicated to connect, be used to provide the PON signal, described a plurality of disributed medias are shared the Broadcast Control device and are used to receive the PON signal of described PON network, and store the media data in the described media signal, and when receiving the control command of described user terminal, the media data of described storage is sent to described user terminal.
9. system according to claim 7 is characterized in that, described a plurality of disributed medias are shared the Broadcast Control device and comprised that first disributed media is shared the Broadcast Control device and second disributed media is shared the Broadcast Control device;
Wherein, described first disributed media is shared the Broadcast Control device and is used for the signal by HFC, or ether signal, or the PON signal, share the media data of the mutual described storage of Broadcast Control device with second disributed media, be used for when receive described second disributed media share the transmission of Broadcast Control device call the instruction of media data the time, the media data of described storage is packaged into the HFC signal, or the ether signal, or the PON signal, and be sent to the shared Broadcast Control device of described second disributed media.
10. system according to claim 9, it is characterized in that, the shared Broadcast Control device of described first disributed media also is used for the control command according to described user terminal, and obtain described second disributed media and share the described media data of storing in the Broadcast Control device, and the described media data that obtains is sent to described user terminal.
11. system according to claim 7 is characterized in that, also comprises:
The front-end business platform is shared the Broadcast Control device with described a plurality of disributed medias and is communicated to connect, and is used for according to the temperature of medium described a plurality of disributed medias being shared the Broadcast Control device and adjusts and dispose.
12. system according to claim 7 is characterized in that, described a plurality of disributed medias are shared the Broadcast Control device and also are used for according to configuration, or network transfer delay or bandwidth, form different territories, and wherein, there are one or more host nodes and some nodes in described territory.
13. medium broadcast control method, it is characterized in that, described medium broadcast control method is applied to comprise in a plurality of disributed medias shared Broadcast Control device, user terminal and the network architecture, described network comprises hfc plant, described disributed media is shared the Broadcast Control device and is communicated to connect with described user terminal and hfc plant respectively, described hfc plant and described disributed media are shared the Broadcast Control device and are communicated to connect, and described user terminal and described disributed media are shared the Broadcast Control device and communicated to connect, and described method comprises:
The shared Broadcast Control device of described disributed media receives the HFC signal in the described hfc plant;
The shared Broadcast Control device of described disributed media is stored the media data in the described HFC signal;
When the shared Broadcast Control of described disributed media receives the control command of described user terminal transmission, the media data of described storage is exported to described user terminal.
14. method according to claim 13 is characterized in that, when described network also comprised the PON network, described PON network and described a plurality of disributed media were shared the Broadcast Control device and are communicated to connect, and described method also comprises:
The shared Broadcast Control device of described disributed media receives the PON signal in the described PON network;
The shared Broadcast Control device of described disributed media is stored the media data in the described PON signal;
When the shared Broadcast Control of described disributed media receives the control command of described user terminal transmission, the media data of described storage is exported to described user terminal.
15. method according to claim 13 is characterized in that, comprising:
When described a plurality of disributed medias share that first disributed media in the Broadcast Control device shares that the Broadcast Control device receives that described second disributed media shares that the Broadcast Control device sends call the instruction of media data the time, the media data of described storage is packaged into the HFC signal, or ether signal, or the PON signal, and be sent to the shared Broadcast Control device of described second disributed media.
16. method according to claim 13 is characterized in that, comprising:
First disributed media that described a plurality of disributed media is shared in the Broadcast Control device is shared the control command of Broadcast Control device according to described user terminal, obtain described second disributed media and share the described media data of storing in the Broadcast Control device, and the described media data that obtains is sent to described user terminal.
Priority Applications (2)
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| CN2009101898001A CN101998173B (en) | 2009-08-27 | 2009-08-27 | Distributed media sharing play controller as well as media play control system and method |
| PCT/CN2010/075621 WO2011023056A1 (en) | 2009-08-27 | 2010-07-31 | Distributed media share play control device, media play control system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101898001A CN101998173B (en) | 2009-08-27 | 2009-08-27 | Distributed media sharing play controller as well as media play control system and method |
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| CN101998173A true CN101998173A (en) | 2011-03-30 |
| CN101998173B CN101998173B (en) | 2012-11-07 |
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| CN103108005A (en) * | 2011-11-11 | 2013-05-15 | 上海聚力传媒技术有限公司 | Method, device and system for achieving data sharing in distributed storage system |
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| CN105049874A (en) * | 2015-07-15 | 2015-11-11 | 华数传媒网络有限公司 | Integrated broadcast control platform and integrated broadcast control method |
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| US5933849A (en) * | 1997-04-10 | 1999-08-03 | At&T Corp | Scalable distributed caching system and method |
| CN1368811A (en) * | 2001-02-06 | 2002-09-11 | 北京华诺信息技术有限公司 | Device and method for sharing information communication and storage space in broadband network system |
| CN101083600A (en) * | 2006-05-29 | 2007-12-05 | 华为技术有限公司 | Method for realizing distributed storage network and data distributed storage |
| CN100579208C (en) * | 2007-03-30 | 2010-01-06 | Ut斯达康通讯有限公司 | Distributed flow media distribution system, and flow media memory buffer and scheduling distribution method |
| CN101350763A (en) * | 2007-07-16 | 2009-01-21 | 华为技术有限公司 | Resource management method, system and network appliance |
| CN101442475A (en) * | 2007-11-24 | 2009-05-27 | 华为技术有限公司 | Distributed business acting method, network system and network appliance |
| CN101447910B (en) * | 2007-11-26 | 2012-04-25 | 华为技术有限公司 | Distributed network storage control method, device and distribution system |
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| CN103108005A (en) * | 2011-11-11 | 2013-05-15 | 上海聚力传媒技术有限公司 | Method, device and system for achieving data sharing in distributed storage system |
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| CN101998173B (en) | 2012-11-07 |
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