CN202009401U - P2P (Peer-to-peer) downloading system based on DVB (digital video broadcasting) network - Google Patents
P2P (Peer-to-peer) downloading system based on DVB (digital video broadcasting) network Download PDFInfo
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- CN202009401U CN202009401U CN201020540399XU CN201020540399U CN202009401U CN 202009401 U CN202009401 U CN 202009401U CN 201020540399X U CN201020540399X U CN 201020540399XU CN 201020540399 U CN201020540399 U CN 201020540399U CN 202009401 U CN202009401 U CN 202009401U
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Abstract
The utility model discloses a P2P (peer-to-peer) downloading system based on a DVB (digital video broadcasting) network, belonging to the technical field of multimedia transmission. The P2P downloading system comprises a P2P cache service system, a P2P broadcasting delivery server, a data converting device, a DVB digital television receiving card device and a receiving module, wherein the P2P cache service system obtains and caches P2P data; the P2P broadcasting delivery server extracts the P2P data from the P2P cache service system and packages the P2P data as an IP (Internet Protocol) data packet to send to the data converting device; and the data converting device converts the IP data packet into TS (transport stream) data, outputs the TS data to the DVB digital television receiving card device and sends the TS data to the receiving module, and the receiving module restores the TS data to P2P data packet. With the adoption of the P2P downloading system, high speed data broadcasting capacity of the DVB broadcasting network can be realized so as to ensure that the internet and the DVB broadcasting network form an integrated cooperative service. A backbone network does not need to be rebuilt in the system, and the system can be created at low cost and is easy to copy and popularize.
Description
Technical field
The utility model relates to a kind of P2P download system, belongs to the multimedia transmission technical field.Be particularly related to a kind ofly on the DVB radio network, change the DVB encapsulation by P2P resource data bag being carried out IP, broadcast transmitted on digital TV network is cached to user terminal in advance, realizes that finally terminal P2P downloads, and improves the download system of P2P downloading rate.
Background technology
Along with the development of the Internet and digital media technology, mode and kind that family digital information inserts also become abundanter.Wherein share and DVB (Digital Video Broadcasting, digital video broadcasting) Digital Television propelling movement two big content sources are main with internet information resource.The main flow that has become resource-sharing is used in P2P (Peer to Peer) peer-to-peer network transmission based on the Internet, but makes that also the Internet day by day blocks up simultaneously; The DVB digital television signal still is traditional television network broadcast, data transmission format is a TS (transport stream, the abbreviation of Transport Stream, follow ISO/IEC 13818-1 standard), possesses googol according to descending propelling movement bandwidth resources, but because the broadcast channel unidirectional characteristic can't be applied to the P2P service of main flow maturation on the Internet in the DVB digital TV broadcasting network.Subject matter have following some:
■ P2P agreement itself is based on the Internet, and the high-speed downstream broadcast channel that the digital television broadcasting netting gear is equipped with is unidirectional, can not satisfy the requirement of P2P agreement.
■ user has adapted to and has been familiar with the P2P download tool and the use pattern of the Internet, is difficult to be accepted as digital TV broadcasting network customization, special broadcast reception download tool.
The ■ the Internet is not communicated with mutually with digital TV broadcasting network, does not have the system or the passage that can interknit, and can't share the resource in each automatic network.
The Internet adopts the different basic physics network equipments to set up respectively with the DVB digital TV network, though between the core backbone network, set up the physical channel, but the application of P2P still concentrates in the Internet, although the advantage of DVB digital tv network is a high-speed broadcast, the unidirectional characteristic of broadcast channel is restricted it in the P2P application development.Though there has been cat CM (Cable Modem) can connect the Internet formation two-way interactive system on the market based on digital tv network, can use the P2P download tool, this system does not possess the high-speed broadcast push channel; Can't realize utilizing the high-speed broadcast passage to improve the target of P2P downloading rate.
The utility model content
The utility model technical issues that need to address are, set up getting in touch of the Internet and DVB digital tv network at server end, with internet hot spots P2P resource forwarding to the broadcast channel of DVB digital tv network, in the DVB digital tv network, realize the transmission of P2P protocol data, and invent a P2P resource website is provided; Terminal is still used traditional P2P download tool, just can improve downloading rate from the Internet and DVB digital tv network while downloaded resources.
The purpose of this utility model provides a kind of P2P download system " PPDVB " based on the DVB radio network, and this system can obtain P2P downloaded resources data from the Internet analysis automatically, and is forwarded on the DVB digital television broadcasting passage; Utilize IP to change DVB technical transmission P2P protocol data bag; Simultaneously provide website in P2P resource of the virtual formation of terminal, when the user starts the P2P download, can be simultaneously on the Internet and DVB radio network, obtain resource data, under the situation of user's occupation mode,, improve downloading rate by two net cooperation with service without any change.
P2P download system based on the DVB radio network comprises the P2P caching system, P2P broadcasts push server, data conversion equipment, DVB Digital Television receiving card equipment and receiver module, described P2P caching system and Internet connection, obtain and buffer memory P2P data, described P2P broadcasting push server is extracted the P2P data encapsulation and is sent to data conversion equipment for the IP packet from the P2P caching system, data conversion equipment is converted to the TS flow data with the IP packet and exports to DVB Digital Television receiving card equipment, described DVB Digital Television receiving card equipment sends to receiver module with the TS flow data, receiver module is reduced to the P2P packet with the TS flow data, and being connected with P2P download software provides P2P data.Data conversion equipment is the equipment that the IP bag of a standard changes DVB packet TS stream.DVB Digital Television receiving card equipment receiving digital television broadcast signal, the TS flow data is exported to receiver module in the computer, receiver module obtains TS stream from DVB Digital Television receiving card equipment, restore the P2P packet that broadcasting pushes, and virtually become a P2P resource website is provided, download software to P2P data source be provided, with broadcast channel in advance the P2P that passes to of the P2P data high-speed of buffer memory download software.
Described P2P caching system is arranged on the network interface node of the P2P resource providing server of the Internet.
Described P2P caching system comprises that described P2P caching system comprises P2P analysis module, extraction module and buffer memory equipment, and the P2P analysis module is analyzed the P2P data, and extraction module extracts the P2P data from the Internet, and with data storing in buffer memory equipment.
The P2P data comprise resource seed information and P2P resource data.
Described P2P broadcasting push server comprises that multicast pushes module, and described multicast pushes the P2P data in the module extraction P2P caching system and is encapsulated as multicast IP bag back and sends.
Described receiver module comprises: DVB changes IP packet assembly, the P2P cache management is safeguarded assembly and P2P virtual data source component, DVB changes IP packet assembly will, the TS flow data is reduced to the multicast IP data bag, the P2P cache management safeguards that assembly extracts P2P data and the storage in the multicast IP data bag, and P2P virtual data source component is searched the P2P data and virtual P2P data source is set.Receiver module is arranged on terminal computer.
Described DVB radio network is cabled digital radio network, received terrestrial digital broadcasting network or satellite digital broadcasting network.
The core of native system scheme is to set up cache node to collect internet hot spots P2P resource, sends by DVB digital television broadcasting net, relies on the virtual P2P of terminal receiver module source, realizes that high speed P2P downloads.Front end P2P caching system is positioned over the network interface node place of the P2P resource providing server of the Internet in this system, is responsible for analyzing the P2P data of extracting focus, and is cached to server; Send with the multicast form by the P2P hot point resource data of P2P broadcasting push server these buffer memorys, the output of P2P broadcasting push server is connected to data conversion equipment, with ETSI EN 301 192 standards (the data broadcasting application standard in the digital video broadcasting, European standard) is the basis, the IP bag is converted to the TS flow data, on digital TV broadcasting network, transmits.When terminal computer connects the Internet, data by the broadcasting of the P2P on DVB Digital Television receiving card equipment receiving digital television broadcast network propelling movement, by being arranged on the receiver module on the terminal computer, the data virtual that P2P broadcasting is pushed becomes a P2P data source, download software with P2P and carry out mutual connection processing, the data in buffer in advance that P2P broadcasting is pushed flows to P2P download software at a high speed, realizes that high speed P2P downloads.
According to the described system schema of the utility model, the P2P data of the Internet are extracted and buffer memory, by DVB digital TV broadcasting network broadcast transmission, make terminal obtain the P2P data simultaneously from the Internet and DVB radio network simultaneously, realize that high speed P2P downloads.
Compare with prior art, advantage of the present utility model is:
The utility model can make the high-speed datacasting ability of DVB digital television broadcasting net be brought into play by the P2P mainstream applications, the Internet and DVB radio network is formed merge cooperation with service, has improved the speed of download of P2P data greatly.This system does not need to transform to backbone network, and the system buildup cost is low, is easy to duplicate popularization.
Description of drawings
Fig. 1 is the structural representation based on the P2P download system of DVB radio network;
Fig. 2 is the workflow schematic diagram of the P2P caching system among Fig. 1;
Fig. 3 is the workflow schematic diagram of the P2P broadcasting push server among Fig. 1;
Fig. 4 is the workflow schematic diagram that the receiver module among Fig. 1 receives data;
Fig. 5 is that the receiver module among Fig. 1 is downloaded the workflow schematic diagram that software is carried data to P2P.
Embodiment
The utility model will be further described below by specific embodiments and the drawings.
In the present embodiment based on the P2P download system of DVB radio network, with widely used BitTorrent agreement is the P2P application, comprise: the P2P caching system, P2P broadcasts push server, data conversion equipment, DVB Digital Television receiving card equipment and PPDVB receiver module, described P2P caching system and Internet connection, obtain and buffer memory P2P data, described P2P broadcasting push server is extracted the P2P data encapsulation and is sent to data conversion equipment for the IP packet from the P2P caching system, data conversion equipment is converted to the TS flow data with the IP packet and exports to DVB Digital Television receiving card equipment, described DVB Digital Television receiving card equipment sends to receiver module with the TS flow data, receiver module is reduced to the P2P packet with the TS flow data, and being connected with P2P download software provides P2P data.Its structure as shown in Figure 1, dotted portion is structural representation part of the present utility model.Wherein the TS flow data outputs on the DVB Digital Television receiving card equipment by the DVB radio network, and the DVB radio network can be cabled digital radio network, received terrestrial digital broadcasting network or satellite digital broadcasting network.
The network interface node of the P2P resource providing server that the P2P caching system is built in the Internet, and be connected with the P2P resource providing server, analyze the P2P resource, and buffer memory P2P data.
Comprise P2P analysis module, extraction module and buffer memory equipment in the P2P caching system, the P2P analysis module is analyzed the P2P data, and extraction module extracts corresponding P2P data from the Internet, and with metadata cache in buffer memory equipment.Its internal work flow process is with reference to figure 2, and step is described in detail as follows, and what wherein dotted portion showed is the P2P caching system:
(1) the P2P analysis module receives the P2P download request from the internet terminal user, analyzes the information of the P2P resource seed that obtains the BitTorrent agreement, and according to download user quantity, it is sorted.
(2) extraction module is according to 10 the most forward P2P resource seed informations of ordering of the ordering indication of P2P analysis module, and the P2P resource providing server obtains corresponding P2P resource data from the Internet.
(3) extraction module is cached to the resource data of 10 P2P in the buffer memory equipment, as the propelling data source of P2P broadcasting push server.
P2P broadcasting push server comprises that multicast pushes module, and this module sends after extracting the P2P data in the P2P caching system and being encapsulated as multicast IP bag.Specifically, it is that the P2P resource seed information and the data that are buffered in the buffer memory equipment are carried out the burst processing that multicast pushes module, by the form encapsulation back transmission of multicast IP agreement, exports to data conversion equipment.Its workflow is with reference to figure 3, and step is described in detail as follows:
(1) from buffer memory equipment, obtains 10 P2P resource seed informations, form the broadcast resource list information, and encapsulate with the form of multicast IP bag.
(2) from buffer memory equipment, obtain the P2P resource data of 10 correspondences, and, carry out Fragmentation according to the piece of fixed size.
(3) each resource data burst all is encapsulated in the multicast IP data bag in (1) step and sends, output is connected to data conversion equipment.
Data conversion equipment is that the IP bag that meets ETSI EN 301 192 standards changes the special equipment that DVB packet TS flows, and is prior art, for example can select SkyStream IPE-2000, but be not limited in this.It according to the conversion of the multi-protocols encapsulation format in ETSI EN 301 192 standards, finally exports broadcast transmitted in the DVB radio network with the packet form of TS stream with the multicast IP data bag.
DVB Digital Television receiving card equipment is a kind of computer peripheral equipment that is used to receive the DVB digital TV broadcast signal, and digital television signal is exported to computer by interfaces such as PCI/USB, is prior art.Be arranged on the terminal computer.
Specifically, accept module, P2P is broadcasted the P2P storage of propelling movement to the hard disk of terminal computer by DVB Digital Television receiving card equipment; When the user started P2P download software, receiver module virtual P2P data source on the user terminal computer provided website, downloaded software to P2P and carried the P2P data that are stored in advance in the hard disk at a high speed.
Described receiver module comprises: DVB changes IP packet assembly, the P2P cache management is safeguarded assembly and P2P virtual data source component, DVB changes IP packet assembly the TS flow data is reduced to the multicast IP data bag, the P2P cache management safeguards that assembly extracts P2P data and the storage in the multicast IP data bag, and P2P virtual data source component is searched the P2P data and virtual P2P data source is set.
Receiver module mainly contains 2 functions:
Function 1 receives data function: according to ETSI EN 301 192 standards, to the TS flow data of DVB radio network transmission, carry out the encapsulation process combination and be reduced to the multicast IP data bag, receive storage P2P resource data burst to hard disk.From the DVB radio network receive and storage P2P resource data to the process of local hard drive with reference to figure 4, what wherein dotted portion showed is the structure of receiver module.Step is described in detail as follows:
(1) DVB changes IP packet assembly by DVB Digital Television receiving card equipment reception TS flow data, and according to the encapsulation of the multi-protocols in ETSI EN 301192 standards standard, combination TS stream restores the multicast IP data bag.
(2) the P2P cache management safeguards that assembly extracts the P2P resource data burst of multicast IP bag transmission, and stores on the local hard drive.
(3) the P2P cache management safeguards that assembly stores P2P resource seed information in the database of local hard drive into, P2P resource seed information according to the transmission of multicast IP bag, the data cached burst of a plurality of resources and P2P resource seed information are by the local database record corresponding relation.Make terminal when certain P2P resource file is downloaded in request, can rely on seed information, from local hard drive, find the resource data burst of corresponding this document.
Function 2, answer P2P download request transmission P2P resource data: when the user starts P2P download tool software (as: sudden peal of thunder, electric donkey etc.), the virtual P2P data source component of receiver module can be intercepted and captured the P2P download request, rely on the seed information of request to search in local hard drive whether the resource content that has prestored is arranged, and a virtual local P2P data source is set, download software to P2P and carry the resource data burst.Receiver module is downloaded flow process that software carries the resource data burst with reference to figure 5 from local hard drive to P2P, and step is described in detail as follows:
(1) by the download request of grid layer monitoring P2P download software, intercepts and captures the seed information in the P2P download request information, as P2P resource lookup foundation.
(2) by seed information search be stored in advance on the local hard drive P2P resource data burst, and, seek the P2P resource data burst of appointment according to the download request of P2P download tool.
(3) when finding the P2P resource data burst of available storage in advance, by the local network connection of computer operating system, return a P2P download request to P2P download tool software and respond, inform that local network is connected with a virtual P2P Source Site.
(4) P2P downloads software after receiving the P2P Source Site information of being responded by the P2P virtual data source component of receiver module, can begin to connect the P2P Source Site that local network connects, and set up the P2P data transmission channel.
(5) after the P2P data transmission channel is set up, P2P downloads software and begins to send the request of resource data burst, the resource data burst that does not also have acquisition is obtained in trial, the P2P virtual data source component of receiver module is according to the data fragmentation solicited message, in the P2P resource data burst of buffer memory in advance, search corresponding fragment data, and be transferred to P2P and download software.
Claims (6)
1. P2P download system based on the DVB radio network, it is characterized in that comprising the P2P cache service system, P2P broadcasts push server, data conversion equipment, DVB Digital Television receiving card equipment and receiver module, described P2P cache service system is and Internet connection, be used to obtain the also P2P cache service system of buffer memory P2P data, described P2P broadcasting push server is extracted the P2P data encapsulation and is sent to data conversion equipment for the IP packet from the P2P cache service system, data conversion equipment is converted to the TS flow data with the IP packet and exports to DVB Digital Television receiving card equipment, described DVB Digital Television receiving card equipment sends to receiver module with the TS flow data, and receiver module is reduced to the P2P packet with the TS flow data.
2. the P2P download system based on the DVB radio network according to claim 1 is characterized in that described P2P cache service system is arranged on the network interface node of the P2P resource providing server of the Internet.
3. the P2P download system based on the DVB radio network according to claim 2 is characterized in that described P2P caching system comprises the P2P analysis module that is used for analyzing the P2P data, is used for the buffer memory equipment that extracts the extraction module of P2P data from the Internet and be used for storage.
4. the P2P download system based on the DVB radio network according to claim 1 is characterized in that described P2P broadcasting push server comprises that multicast pushes module, extracts the P2P data in the P2P cache service system and be encapsulated as multicast IP bag back to send.
5. the P2P download system based on the DVB radio network according to claim 1, it is characterized in that described receiver module comprises that DVB changes IP packet assembly, the P2P cache management is safeguarded assembly and P2P virtual data source component, DVB changes IP packet assembly the TS flow data is reduced to the multicast IP data bag, the P2P cache management safeguards that assembly extracts P2P data and the storage in the multicast IP data bag, and P2P virtual data source component is searched the P2P data and virtual P2P data source is set.
6. the P2P download system based on the DVB radio network according to claim 1 is characterized in that described DVB radio network is cabled digital radio network, received terrestrial digital broadcasting network or satellite digital broadcasting network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020540399XU CN202009401U (en) | 2010-09-21 | 2010-09-21 | P2P (Peer-to-peer) downloading system based on DVB (digital video broadcasting) network |
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| CN201020540399XU CN202009401U (en) | 2010-09-21 | 2010-09-21 | P2P (Peer-to-peer) downloading system based on DVB (digital video broadcasting) network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539633A (en) * | 2015-01-21 | 2015-04-22 | 冯山泉 | Large multimedia file content receiving method and system |
| CN114793296A (en) * | 2021-11-04 | 2022-07-26 | 珠海迈科智能科技股份有限公司 | Processing method for sharing DVB real-time TS stream based on p2p network |
-
2010
- 2010-09-21 CN CN201020540399XU patent/CN202009401U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539633A (en) * | 2015-01-21 | 2015-04-22 | 冯山泉 | Large multimedia file content receiving method and system |
| CN114793296A (en) * | 2021-11-04 | 2022-07-26 | 珠海迈科智能科技股份有限公司 | Processing method for sharing DVB real-time TS stream based on p2p network |
| CN114793296B (en) * | 2021-11-04 | 2023-09-19 | 珠海迈科智能科技股份有限公司 | Processing method for sharing DVB real-time TS stream based on p2p network |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING GEHUA CATV NETWORK CO., LTD. Effective date: 20120322 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120322 Address after: 100191 Beijing Haidian District City Garden Road, No. 14 building A block two layer on the west side of star Co-patentee after: Beijing Gehua Cable TV Network Co., Ltd. Patentee after: BEIJING GEHUA CABLE DIGITAL MEDIA CO., LTD. Address before: 100191 Beijing Haidian District City Garden Road, No. 14 building A block two layer on the west side of star Patentee before: BEIJING GEHUA CABLE DIGITAL MEDIA CO., LTD. |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20111012 |