CN101145824B - Network device based on satellite communication transmission and software forwarding - Google Patents
Network device based on satellite communication transmission and software forwarding Download PDFInfo
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- CN101145824B CN101145824B CN2007101346971A CN200710134697A CN101145824B CN 101145824 B CN101145824 B CN 101145824B CN 2007101346971 A CN2007101346971 A CN 2007101346971A CN 200710134697 A CN200710134697 A CN 200710134697A CN 101145824 B CN101145824 B CN 101145824B
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Abstract
The invention relates to a network device based on satellite communication transmission and software forwarding. The invention comprises a satellite unit A1, a satellite receiving unit A2, a master station unit 8, a satellite unit B11, and a satellite receiving unit B12; wherein, the satellite unit A1 is connected with the satellite receiving unit A2 through electromagnetic wave wireless transmission; the satellite receiving unit A2 is connected with the master station unit 8 through a netting twine; the master station unit is connected with the satellite unit B11 through the electromagnetic wave wireless transmission; the satellite unit B11 is connected with the receiving unit B12 through the electromagnetic wave wireless transmission. The invention has the following advantages that: thedevice comprises that the downlink transmission speed of the satellite is fast, and can be up to tens of MBPS; the cost is lower, and all the hardware are of the standard hardware without refitting; the coverage area is larger and the invention is applied in all the regions that the satellite is able to cover; the adaptability is stronger and the invention is suitable for different requirements of the large common users; the downlink channel direct construction network mode is convenient in application and high in efficiency.
Description
Technical field
The invention provides a kind of satellite retransmission unit, specifically is a kind of network equipment based on satellite communication transmission and software forwarding, the invention belongs to the wireless network communication technique field.
Background technology
Because the satellite covering area difference of present stage, each satellite alternates betwwen good and bad at each regional signal, and the program on each satellite is also inequality, program for user's needs, the local signal quality is satellite this program and have the satellite of this program not cover this area not preferably, and this does not also have good solution.If can with the signal forwarding that do not cover this area satellite to the satellite that covers this area, just can be good at addressing this problem.
Existing retransmission technique is divided into two kinds: a kind ofly directly finish on satellite, directly program is sent on another satellite by a satellite, use on network program is live, for domestic consumer usually, expense is very expensive, and will be through debugging for a long time.Another kind of mode is that a ground station receives, and sends through non-line volume and signal processing then again, and this uses usually on TV station relays, and for domestic consumer, expense is also very expensive, and treated content does not need for domestic consumer yet.So present stage, a kind of utility unit low-cost and that can provide satellite programming to transmit that possesses was provided.
Summary of the invention
Technical problem: the objective of the invention is to overcome deficiency of the prior art, a kind of network equipment of transmitting based on satellite communication transmission and software be provided, have with low cost, with strong points, the high communication quality, the advantage of Zhuan Faing as required.
Technical scheme: the present invention is regional preferably at two satellite-signals, receiving element (ground satellite station connects the computer list and receives card) receives the program of a satellite via satellite, by software the program that receives is sent to an other satellite from the another one ground satellite station then and gets on.Program stream is the electromagnetic wave form among the present invention, and receiving also by the satellite receiving element, the denoising amplification is reduced into the initial IP packet; By software the IP packet being sent to main station unit by network adapter then is the IP packet, (full name is the digital broadcasting satellite system standard for Digital VideoBroadcasting-Satellite to be converted to DVB-S via the main website end, the standard of China Broadcast ﹠ Television trade information transmission) data, be sent to an other satellite with the electromagnetic wave form after modulating, the satellite receiving element in strange land just can receive then.
The present invention specifically comprises first satellite unit, the first satellite receiving element, main station unit, second satellite unit, the second satellite receiving element; Wherein first satellite unit is connected with the first satellite receiving element by the electromagnetic wave wireless transmission, the first satellite receiving element is connected with main station unit by netting twine, main station unit is connected by the electromagnetic wave wireless transmission with second satellite unit, and second satellite unit is connected by the electromagnetic wave wireless transmission with the second satellite receiving element.
The first satellite receiving element comprises: by first exterior aerial, feed and frequency converter, first terminal that the wire signal feeder line is connected successively, comprise the first indoor satellite receiving card, reflecting software in first terminal; The first satellite receiving element receives the Radio Satellite signal that sends from first satellite unit, by reflecting software the program of the first indoor satellite receiving card is sent to program receiving element in the main station unit by common netting twine then.
Main station unit comprises: program receiving element and program transmitting element; The program dispatching centre sends the Radio Satellite signal to second satellite unit, and the program receiving element is connected by common netting twine with the program transmitting element.
The second satellite receiving element comprises: second exterior aerial and feed thereof and frequency converter and second standard computer terminal that installs the second indoor satellite receiving card additional, this three connects successively by the wire signal feeder line.
The concrete process of carrying out is:
● satellite receiving element A receives the program that sends from satellite unit A, and denoising amplifies and be reduced into the initial IP packet, then the IP packet is sent to main station unit program receiving center by reflecting software
● main station unit program receiving center receives is converted to the data of DVB-S with the IP data for after the content program dispatching centre, is sent to satellite unit B with the electromagnetic wave form after modulating.
● satellite unit B sends to satellite receiving element B with the program of repacking
Beneficial effect: beneficial effect of the present invention comprises that satellite downlink transfer speed is fast: can reach tens MBPSs; With low cost: employed hardware all is standard hardware under the existing environment, need not reequip; Broad covered area: the zone that satellite can cover can be suitable for the inventive method; Adaptability is strong: difference 8 demands that are fit to vast domestic consumer; Downlink channel direct construction network mode, it is more convenient to use, and efficient is higher.
Description of drawings
Fig. 1 is a structure drawing of device of the present invention.
Wherein have: the first satellite unit A1, the first satellite receiving element A2, main station unit 8, first exterior aerial 3, feed and frequency converter 4, first terminal, 5, the first indoor satellite receiving cards 6, reflecting software 7; The second satellite unit B11, the second satellite receiving element B12, main station unit 8, program receiving element 9, program transmitting element 10, second exterior aerial 13, feed and frequency converter 14, second standard computer terminal, 15, the second indoor satellite connect card 16.
Embodiment
This specific embodiment combination technology scheme and accompanying drawing describe in further detail practical application of the present invention.
As shown in drawings: the present invention includes the first satellite unit A1, the first satellite receiving element A2, main station unit 8, the second satellite unit B11, the second satellite receiving element B12; Wherein the first satellite unit A1 is connected with the first satellite receiving element A2 by the electromagnetic wave wireless transmission, the first satellite receiving element A2 is connected with main station unit 8 by netting twine, main station unit is connected by the electromagnetic wave wireless transmission with the second satellite unit B11, and the second satellite unit B11 is connected by the electromagnetic wave wireless transmission with the second satellite receiving element B2.
Wherein the first satellite receiving element A2 comprises: first exterior aerial 3 and feed thereof and frequency converter 4 and first standard computer terminal 5 that installs the standard first indoor satellite receiving card 6 additional, this three connects successively by the wire signal feeder line, also has reflecting software 7.The Radio Satellite signal that reception is sent from the first satellite unit A1 is sent to program receiving element 9 in main station unit 8 with program by common netting twine by reflecting software then.
Wherein main station unit 8 comprises: program receiving element 9 and program transmitting element 10; Program dispatching centre 10 sends the Radio Satellite signal to the second satellite unit B11, and program receiving element 9 is connected by common netting twine with program transmitting element 10;
Wherein satellite receiving element B12 comprises: exterior aerial 13 and feed thereof and frequency converter 14 and second standard computer terminal 15 that has installed satellite receiving card 16 in the standard chamber additional, this three connects successively by the wire signal feeder line.
Practical application hardware environment of the present invention is as follows:
The first satellite unit A1: Chinastar 1 satellite;
First exterior aerial 3 and feed thereof and frequency converter 4: 1.8 meters antennas of Chengdu nova and centre halfback's 11300 feed frequency converters thereof;
First standard computer terminal 5: central processing unit is Celeron 1.7Ghz, in save as 256MB, hard disk is 40GB;
The SkyStar satellite receiving card of satellite receiving card 6:Technisat company in first standard chamber;
Reflecting software 7:Mcast software;
Main station unit 8 is specially: the A9780 main station unit of Alcatel company, and the electromagnetic wave of employing Ku wave band between this unit and the satellite, the agreement of abideing by DVB-S communicates;
The BAS system of program receiving element 9:Thales company;
The DVB-S system of program transmitting element 10:Thales company;
The second satellite unit B11: No. four satellites in Asia;
Second exterior aerial 13 and feed thereof and frequency converter 14: 1.8 meters antennas of Chengdu nova and centre halfback's 11300 feed frequency converters thereof;
Second standard computer terminal 15: central processing unit is Celeron 1.7Ghz, in save as 256MB, hard disk is 40GB;
The SkyStar satellite receiving card of satellite receiving card 16:Technisat company in second standard chamber;
The compared with prior art concrete effect of the present invention
Forwarding rate | Stability | Cost | |
The use inter-satellite is transmitted | 40M | Less stable | Very expensive |
Use ground hardware to transmit | 40M | Stable | Very expensive |
Use this patent mode | 40M | More stable | Cheaply |
Claims (4)
1. the network equipment based on satellite communication transmission and software forwarding is characterized in that this device comprises that first satellite unit (A1), the first satellite receiving element (A2), program send receiving element (8), second satellite unit (B1), the second satellite receiving element (B2); Wherein first satellite unit (A1) is connected with the first satellite receiving element (A2) by the electromagnetic wave wireless transmission, the first satellite receiving element (A2) sends receiving element (8) by netting twine and program and is connected, program sends receiving element (8) and is connected by the electromagnetic wave wireless transmission with second satellite unit (B1), and second satellite unit (B1) is connected by the electromagnetic wave wireless transmission with the second satellite receiving element (B2).
2. the network equipment based on satellite communication transmission and software forwarding according to claim 1, it is characterized in that the first satellite receiving element (A2) comprising: first exterior aerial (3), feed and frequency converter (4), first terminal (5) by the wire signal feeder line is connected successively comprise the first indoor satellite receiving card (6), reflecting software (7) in first terminal (5); The first satellite receiving element (A2) receives the Radio Satellite signal that sends from first satellite unit (A1), by reflecting software the program of the first indoor satellite receiving card (6) is sent to program by common netting twine then and sends program receiving element (9) in the receiving element (8).
3. the network equipment based on satellite communication transmission and software forwarding according to claim 1 is characterized in that program sends receiving element (8) and comprising: program receiving element (9) and program transmitting element (10); Program transmitting element (10) sends the Radio Satellite signal to second satellite unit (B1), and program receiving element (9) is connected by common netting twine with program transmitting element (10).
4. the network equipment based on satellite communication transmission and software forwarding according to claim 1, it is characterized in that the second satellite receiving element (B2) comprising: second exterior aerial (13) and feed thereof and frequency converter (14) He Yitai have installed second standard computer terminal (15) of the second indoor satellite receiving card (16) additional, and this three connects successively by the wire signal feeder line.
Priority Applications (1)
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CN2007101346971A CN101145824B (en) | 2007-11-06 | 2007-11-06 | Network device based on satellite communication transmission and software forwarding |
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CN2007101346971A CN101145824B (en) | 2007-11-06 | 2007-11-06 | Network device based on satellite communication transmission and software forwarding |
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CN101145824A CN101145824A (en) | 2008-03-19 |
CN101145824B true CN101145824B (en) | 2010-10-13 |
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CN2007101346971A Expired - Fee Related CN101145824B (en) | 2007-11-06 | 2007-11-06 | Network device based on satellite communication transmission and software forwarding |
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CN103095682A (en) * | 2012-12-05 | 2013-05-08 | 四川金网通电子科技有限公司 | Satellite receiver with data traffic distribution function |
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CN201118589Y (en) * | 2007-11-06 | 2008-09-17 | 南京中网通信有限公司 | Network device based on satellite communication transmission and software forward |
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CN201118589Y (en) * | 2007-11-06 | 2008-09-17 | 南京中网通信有限公司 | Network device based on satellite communication transmission and software forward |
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C14 | Grant of patent or utility model | ||
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20171106 |