CN104469403A - System and method for transmitting and receiving TS with network as transmission medium - Google Patents
System and method for transmitting and receiving TS with network as transmission medium Download PDFInfo
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- CN104469403A CN104469403A CN201410827674.9A CN201410827674A CN104469403A CN 104469403 A CN104469403 A CN 104469403A CN 201410827674 A CN201410827674 A CN 201410827674A CN 104469403 A CN104469403 A CN 104469403A
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- network
- transmission medium
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
-
- 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
- H04N21/643—Communication protocols
- H04N21/64322—IP
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a system and method for transmitting and receiving TS with a network as a transmission medium. A satellite signal received by a community satellite antenna is converted into an intermediate frequency signal through a tuning unit at the transmitting end to be output. The intermediate frequency signal is converted into TS stream through a DEMOD at the transmitting end to be output. A decoder at the transmitting end is used for obtaining a TS data package in the TS stream and packages the TS data package into a UDP/IP package, and the UDP/IP package is sent to a community local area network system. According to the system and method for transmitting and receiving the TS with the network as the transmission medium, there is no need to lay a cable television network, cost is saved, and meanwhile network resources are well utilized.
Description
Technical field
The present invention relates to digital television techniques field, be specifically related to a kind of network that utilizes and send as transmission medium and receive the system and method for TS.
Background technology
Along with popularizing of Digital Television, DVB and MPEG-2 system multiplexing technology is widely used, in the two kinds of multiplexed information streams defined in Moving Picture Experts Group-2, transport stream (TS) is applied the most general, mainly contains digital satellite live broadcast system (DVB-S), digital cable broadcast system (DVB-C) and DTB Digital Terrestrial Broadcasting system (DVB-T) according to the different DVB transmission systems of transmission medium; These three kinds main output systems are widely used in different occasions in conjunction with the feature of self, and DVB-S has the large and satellite antenna of broad covered area, program amount must be used to wide rural subscribers to the feature of star; DVB-C adopts cable of cable TV to be widely used in as transmission medium the city that user relatively concentrates, and feature is convenient to management, and can propagate local and external programme signal; DVB-T is mainly used in the user that the comparatively far away and cable television network in distance city cannot cover.Therefore the city of user than comparatively dense can not be widely used according to its feature DVB-S.Difficulty is to install satellite antenna, does not first have vacant open ground to fix up an aerial wire, even if can on balcony install, also may affect family life; Moreover some house type possibly cannot, to star, secondly be that some floor may be blocked by other building.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, provide a kind of network that utilizes send as transmission medium and receive the system and method for TS, the technical problem of satellite antenna inconvenience is installed for solving urban subscriber.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
Utilize network send as transmission medium and receive a system of TS, it comprises:
Community satellite antenna, for receiving satellite signal;
Community local area network network system, for the satellite signal transit that received by described community satellite antenna to playback equipment.
In order to realize the present invention better, further technical scheme is:
According to one embodiment of the invention, it also comprises:
The tuner of transmitting terminal, the satellite-signal for being received by described community satellite antenna is converted to intermediate-freuqncy signal and exports;
The DEMOD of transmitting terminal, exports for described intermediate-freuqncy signal being converted to TS stream;
The decoder of transmitting terminal, for obtaining the TS packet in TS stream, and dresses up UDP/IP bag, and is sent in described community local area network network system by UDP/IP bag by TS data envelope.
According to another embodiment of the invention, the tuner of described transmitting terminal adopts RDA5815S chip.
According to another embodiment of the invention, the DEMOD of described transmitting terminal adopts AVL6211 chip.
According to another embodiment of the invention, the decoder of described transmitting terminal adopts MPEG-2 decoder.
According to another embodiment of the invention, described MPEG-2 decoder adopts TF530 chip.
According to another embodiment of the invention, it also comprises:
The TS To IP of receiving terminal or IP To TS, exports for the UDP/IP bag in described community local area network network system is converted to TS stream;
The master chip of receiving terminal, for receiving TS packet from TS stream;
The decoder of receiving terminal, for the decoding of TS packet.
According to another embodiment of the invention, the TS To IP of receiving terminal is or/and IP To TS adopts TF530 chip.
The present invention can also be:
Utilize network send as transmission medium and receive a method of TS, it comprises:
By community satellite antenna receiving satellite signal;
The satellite-signal that community satellite antenna receives by community local area network network system transfers to playback equipment.
According to another embodiment of the invention, it comprises:
The satellite-signal received by described community satellite antenna is that intermediate-freuqncy signal exports by the tuner transition of transmitting terminal;
Described intermediate-freuqncy signal is converted to TS stream by the DEMOD of transmitting terminal export;
Obtain the TS packet in TS stream by the decoder of transmitting terminal, and TS data envelope is dressed up UDP/IP bag, and UDP/IP bag is sent in described community local area network network system.
Compared with prior art, one of beneficial effect of the present invention is:
A kind of network that utilizes of the present invention sends as transmission medium and receives the system and method for TS, does not need to lay cable television network, provides cost savings, also well make use of Internet resources simultaneously.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technical scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the flow process principle schematic of transmitting terminal according to an embodiment of the invention.
Fig. 2 shows the flow process principle schematic of receiving terminal according to an embodiment of the invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Along with network technology development, the speed of Internet Transmission is more and more faster, all there is 1000M network now, and all complete netting twine in now a lot of communities, in Zai Jiang community, each user sets up into a community local area network (wired or wireless local area network (LAN)), the present embodiment utilizes existing local network transport DVB-S signal data in community, although certain network bandwidth can be taken, but also can not affect user and normally use network, Internet Transmission DVB-S signal data is adopted just not need user installation satellite antenna, user just no longer considers to fix up an aerial wire position and the problem to star.Therefore the community of network is being had just can well to promote DVB-S.First in community, look for the open ground installation satellite antenna that a piece vacant, require can not be blocked to the direction of star, in community, the roof of high building is best selection, the transmitting terminal of the design's invention is first from antenna receiving signal, again signal is obtained TS packet through tuner and decoder, then TS data envelope is dressed up UDP/IP data broadcast in network, user utilizes the design's invention receiving terminal from network, obtain UDP/IP data at home, then TS data are reduced into, finally give MPEG-2 decoder by TS data, decoder is output audio and video again, sound and picture signal present in front of the user the most at last.
Shown in Fig. 1, Fig. 2, a kind of network that utilizes sends as transmission medium and receives the system of TS, and it comprises community satellite antenna and community local area network network system, and community satellite antenna is used for receiving satellite signal; The satellite signal transit that community local area network network system is used for described community satellite antenna to receive is to playback equipment.
Transmitting terminal as shown in Figure 1 also comprises:
The tuner of transmitting terminal, the satellite-signal for being received by described community satellite antenna is converted to intermediate-freuqncy signal and exports;
The DEMOD of transmitting terminal, exports for described intermediate-freuqncy signal being converted to TS stream;
The decoder of transmitting terminal, for obtaining the TS packet in TS stream, and dresses up UDP/IP bag, and is sent in described community local area network network system by UDP/IP bag by TS data envelope.
Receiving terminal as shown in Figure 2 also comprises:
The TS To IP of receiving terminal or IP To TS, exports for the UDP/IP bag in described community local area network network system is converted to TS stream;
The master chip of receiving terminal, for receiving TS packet from TS stream;
The decoder of receiving terminal, for the decoding of TS packet.
Again as shown in Figure 1, for the operation principle of sending ending equipment, first satellite antenna receiving satellite signal is utilized, and RF signal is passed to tuner, the RDA5815S chip that tuner adopts, RF signal exports intermediate-freuqncy signal after tuner, DEMOD (employing be AVL6211 chip) receiving intermediate frequency signal exports TS stream through process, TS stream passes to MPEG-2 decoder again, what MPEG-2 decoder adopted is TF530 chip, TF530 is also the main control chip of whole transmitting terminal system, it normally works except coordinating whole system, topmost function TS data envelope is dressed up UDP/IP bag, and UDP/IP bag is sent in network.First TF530 receives TS packet from TS stream, a complete TS bag is 188 bytes, TS package is just dressed up UDP/IP data broadcast in network after receiving a TS bag by it, the reception that TS wraps, packing and transmission are completed by TF530 chip hardware circuit completely, software only needs to arrange relevant parameter, then it just can be allowed to start working, so just can ensure the efficiency of whole processing procedure, the situation missing TS data can not be there is.Bundling port number and broadcast address during broadcast data, such receiving terminal could receive data according to this port numbers and broadcast address.For the ease of management sending ending equipment, we have made a web server inside transmitting terminal software, and just fix IP address when just filling, later maintenance just can log in web server; Frequency point parameters can be set in web page, referring to signal condition, local ip address be set, the port numbers of broadcast and broadcast address etc. are set.
Again as shown in Figure 2, receiving terminal flow chart asks for an interview Fig. 2, first receiving terminal adopts TF530 chip to receive UDP/IP data, then TS packet is reduced into, and pass to main control chip with the form of TS stream, TS To IP and IP To TS be all adopt be TF530 chip, but the software of receiving terminal and transmitting terminal is different, TF530 completes TS To IP or IP To TS function according to different software.That the master chip of receiving terminal adopts is Hi3716MV300, it receives TS packet from TS stream, through MPEG-2 decoding, audio/video decoding, then output audio and video, sound and image present the most at last, if data flow then can directly be saved in memory device.
Just can by satellite for pushing supplementary service in urban subscriber by the design's invention, this overlaps ripe scheme is exactly be user push data.Push data are saved in hard disk by receiving terminal, and store according to the propelling movement specification of front end when preserving data, it is exactly portion's audio-video document that data receiver completes, and then user just can watch these films, and the data of every day have and can upgrade.There is the design to invent me and even had a more bold idea, utilize it can replace DVB-C signal, because transmitting terminal has bound port numbers and broadcast address, therefore multiple equipment can be adopted to forward different programs, such as transmitting terminal 1 forwards CCTV's program, transmitting terminal 2 forwards economizes platform, and transmitting terminal 3 forwards local program.As long as the network bandwidth can set up N number of transmitting terminal enough in theory.Receiving terminal can be selected to receive data according to the port of each transmitting terminal and broadcast address, so just can reach the object switching frequency.Just do not need to lay cable television network by this design, provide cost savings, well make use of Internet resources simultaneously yet.
In sum, 1) utilize netting twine to transmit TS packet, thus replacement cable of cable TV transmits, and has broken traditional mentality of designing.2) TS To IP and IP To TS mentality of designing and solution.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of and claim open in the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. utilize network send as transmission medium and receive a system of TS, it is characterized in that it comprises:
Community satellite antenna, for receiving satellite signal;
Community local area network network system, for the satellite signal transit that received by described community satellite antenna to playback equipment.
2. the network that utilizes according to claim 1 sends as transmission medium and receives the system of TS, it is characterized in that it also comprises:
The tuner of transmitting terminal, the satellite-signal for being received by described community satellite antenna is converted to intermediate-freuqncy signal and exports;
The DEMOD of transmitting terminal, exports for described intermediate-freuqncy signal being converted to TS stream;
The decoder of transmitting terminal, for obtaining the TS packet in TS stream, and dresses up UDP/IP bag, and is sent in described community local area network network system by UDP/IP bag by TS data envelope.
3. the network that utilizes according to claim 2 sends as transmission medium and receives the system of TS, it is characterized in that the tuner of described transmitting terminal adopts RDA5815S chip.
4. the network that utilizes according to claim 2 sends as transmission medium and receives the system of TS, it is characterized in that the DEMOD of described transmitting terminal adopts AVL6211 chip.
5. the network that utilizes according to claim 2 sends as transmission medium and receives the system of TS, it is characterized in that the decoder of described transmitting terminal adopts MPEG-2 decoder.
6. the network that utilizes according to claim 2 sends as transmission medium and receives the system of TS, it is characterized in that described MPEG-2 decoder adopts TF530 chip.
7. the network that utilizes according to any one of claim 2 ~ 6 sends as transmission medium and receives the system of TS, it is characterized in that it also comprises:
The TS To IP of receiving terminal or IP To TS, exports for the UDP/IP bag in described community local area network network system is converted to TS stream;
The master chip of receiving terminal, for receiving TS packet from TS stream;
The decoder of receiving terminal, for the decoding of TS packet.
8. the network that utilizes according to claim 7 sends as transmission medium and receives the system of TS, it is characterized in that the TS To IP of receiving terminal or/and IP To TS adopts TF530 chip.
9. utilize network send as transmission medium and receive a method of TS, it is characterized in that it comprises:
By community satellite antenna receiving satellite signal;
The satellite-signal that community satellite antenna receives by community local area network network system transfers to playback equipment.
10. the network that utilizes according to claim 9 sends as transmission medium and receives the method for TS, it is characterized in that it comprises:
The satellite-signal received by described community satellite antenna is that intermediate-freuqncy signal exports by the tuner transition of transmitting terminal;
Described intermediate-freuqncy signal is converted to TS stream by the DEMOD of transmitting terminal export;
Obtain the TS packet in TS stream by the decoder of transmitting terminal, and TS data envelope is dressed up UDP/IP bag, and UDP/IP bag is sent in described community local area network network system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827674.9A CN104469403A (en) | 2014-12-25 | 2014-12-25 | System and method for transmitting and receiving TS with network as transmission medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827674.9A CN104469403A (en) | 2014-12-25 | 2014-12-25 | System and method for transmitting and receiving TS with network as transmission medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104469403A true CN104469403A (en) | 2015-03-25 |
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ID=52914664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827674.9A Pending CN104469403A (en) | 2014-12-25 | 2014-12-25 | System and method for transmitting and receiving TS with network as transmission medium |
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| CN (1) | CN104469403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106507064A (en) * | 2015-09-08 | 2017-03-15 | 格得电子工业股份有限公司 | Chromacoder |
| CN107770632A (en) * | 2017-10-17 | 2018-03-06 | 安徽广行通信科技股份有限公司 | The live broadcasting method that a kind of DVB/IP is combined |
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