CN107026688B - Satellite broadcast data one-way receiving station and data transmission method thereof - Google Patents
Satellite broadcast data one-way receiving station and data transmission method thereof Download PDFInfo
- Publication number
- CN107026688B CN107026688B CN201710307605.9A CN201710307605A CN107026688B CN 107026688 B CN107026688 B CN 107026688B CN 201710307605 A CN201710307605 A CN 201710307605A CN 107026688 B CN107026688 B CN 107026688B
- Authority
- CN
- China
- Prior art keywords
- beidou
- antenna
- receiving station
- information
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention discloses a satellite broadcast data one-way receiving station and a data transmission method thereof, wherein the satellite broadcast data one-way receiving station comprises an antenna feeder system: the system mainly comprises a plurality of antenna receiving units, a radio frequency unit, a power amplifier and an LNB; a system management control platform: the system mainly comprises a main control unit, a user gateway and a user interface; the system application software comprises: the system comprises marine remote sensing data satellite broadcast single receiving station application software and the like; the Beidou satellite communication system also comprises IDU equipment, a Beidou user machine, an A-TDM demodulator, a decryption unit and a Beidou transceiver module; the unidirectional receiving station receives satellite broadcast signals through the antenna unit, the satellite broadcast signals are sent to a baseband for A-TDM demodulator demodulation and decryption processing after being processed by the radio frequency unit, then the signals are sent to the main control unit through the user gateway and the user interface, and the main control unit performs unified control and management on forward release information and Beidou information sent by the Beidou transmitting and receiving module; the invention realizes wide-area and high-efficiency information broadcasting distribution capability and a safety authorization mechanism, and realizes conditional reception of marine remote sensing data.
Description
Technical Field
The invention relates to a satellite broadcast data one-way receiving station and a data transmission method thereof.
Background
At present, in China, maritime satellite (inmarsat), Shuraya (Thuraya), Iridium and other foreign satellite communication system products are generally adopted for satellite communication, and although the communication quality is high, the products belong to narrow-band communication, the transmission rate is low, and high-speed communication services such as multimedia and the like cannot be realized. Meanwhile, the problems of high after-sale maintenance price and time delay of foreign products are difficult to solve.
Compared with foreign countries, the domestic satellite communication technology level is far away, and particularly in the aspects of civil satellite systems and application technologies, the domestic satellite communication technology is still in the starting stage. For many years, domestic satellite applications including satellite phones, satellite broadcasting, broadband satellite communication and the like mainly depend on foreign systems and devices, the satellite systems and satellite terminal technologies are also limited by foreign manufacturers, and the safety and reliability of satellite communication are not effectively guaranteed. At present, no broadband satellite communication system developed specially aiming at the characteristics of large forward data volume, small backward data volume and the like of a marine remote sensing data distribution system exists at home and abroad.
In recent years, with the development of satellite communication technology and the attention of China to satellite communication, China has made certain progress in the field of satellite communication. The satellite communication system independently developed in China basically can meet military requirements, but no mature solution of a commercial satellite communication system exists in the civil market at present, and the solution clearly contrasts with the domestic huge market requirements. The domestic broadband satellite communication system has huge market potential.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a satellite broadcast data one-way receiving station and a data transmission method thereof, which are suitable for a satellite communication system with large forward data volume and small backward data volume of a marine remote sensing data distribution system.
The purpose of the invention is realized by the following technical scheme:
a satellite broadcast data one-way receiving station comprising:
an antenna feeder system: the system mainly comprises a plurality of antenna receiving units, a radio frequency unit, a power amplifier and an LNB;
a system management control platform: the system mainly comprises a main control unit, a user gateway and a user interface;
the system application software comprises: the method comprises the steps of applying software of a marine remote sensing data satellite broadcast single receiving station;
the Beidou satellite communication system also comprises IDU equipment, a Beidou user machine, an A-TDM demodulator, a decryption unit and a Beidou transceiver module;
the unidirectional receiving station receives satellite broadcast signals through the antenna unit, the satellite broadcast signals are sent to a baseband for A-TDM demodulator demodulation and decryption processing after being processed by the radio frequency unit, then the signals are sent to the main control unit through the user gateway and the user interface, and the main control unit performs unified control and management on forward release information and Beidou information sent by the Beidou transmitting and receiving module; the one-way receiving station sends an information on-demand application or query request to the publishing center through the Beidou short message transmission channel and uploads the position information of the one-way receiving station.
As a further improvement of the scheme, the antenna receiving unit comprises a single-receiving shipborne station antenna, a ground fixed station antenna and a vehicular station antenna.
As a further improvement of the scheme, in the process of sending an information on demand application or query request to a publishing center through a Beidou short message transmission channel and uploading the position information of the receiving station, firstly, a user inputs the information on demand or query request through a main control unit and sends the information on demand or query request to a Beidou satellite through an information processing unit and an antenna module of a Beidou transceiver module, and after the system carries out an authentication request on the uploaded information request, the queried or requested data is unicast or multicast to a corresponding terminal, so that the information request and query are returned.
As a further improvement of the scheme, the Beidou transceiver module comprises a Beidou antenna module, a Beidou module and an information processing module, and the Beidou module is communicated with the radio frequency unit through the Beidou antenna module and is connected with the main control unit through the information processing module.
The data transmission method of the satellite broadcast data one-way receiving station comprises the following steps:
receiving a forward service data flow sent by a broadcast satellite transparent forwarding main control station through an antenna feeder system:
SO1. the antenna feed system transforms the Ku frequency band to the L frequency band after LNB down-conversion processing and carries out filtering processing;
the signal of S02.L frequency band is sent to IDU equipment through a feeder line, the demodulation processing, LDPC decoding and de-encapsulation of the signal are completed, and finally IP packet data are obtained;
s03, analyzing and integrating the IP packet data by the system management control platform to generate an original data file;
s04, outputting the received broadcast content to a back-end data processing device after performing primary identification, classification, statistics and filtering on the received broadcast content;
and S05, timely storing and deleting the received broadcast content, maintaining the disk space and ensuring the stable operation of the server.
The data processing flow of the return Beidou link is as follows:
s11, the system management control platform sends a Beidou short message to the master station or the small station through application software, wherein the Beidou short message comprises contents such as a short message, an equipment state, a service state, a positioning application and the like;
s12, the IDU equipment carries out IP packet analysis, extracts short message contents and then sends the short messages to the Beidou user machine through the RS232 serial port;
s13, a Beidou multi-frequency antenna, a radio frequency, a baseband and a main control board are integrated in the Beidou user machine, after a series of processing, short messages are finally sent to the Beidou satellite, and information pushing of a Beidou forward link is completed.
As a further improvement of the scheme, the Beidou forward link adopts an A-TDM forward broadcast system.
The invention has the beneficial effects that: a data transmission technology platform based on broadband satellite communication adopts an A-TDM forward broadcast system in the forward development, so that wide-area and efficient information broadcast distribution capacity and a safety authorization mechanism are realized, and conditional reception of marine remote sensing data is realized.
Drawings
FIG. 1 is a schematic diagram of a structure of a satellite broadcast data one-way receiving station;
fig. 2 is a schematic diagram of data transmission according to the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in figures 1 and 2 of the drawings,
a satellite broadcast data one-way receiving station comprising:
an antenna feeder system: the system mainly comprises a plurality of antenna receiving units, a radio frequency unit, a power amplifier and an LNB;
a system management control platform: the system mainly comprises a main control unit, a user gateway and a user interface;
the system application software comprises: the method comprises the steps of applying software of a marine remote sensing data satellite broadcast single receiving station;
the Beidou satellite communication system also comprises IDU equipment, a Beidou user machine, an A-TDM demodulator, a decryption unit and a Beidou transceiver module;
the unidirectional receiving station receives satellite broadcast signals through the antenna unit, the satellite broadcast signals are sent to a baseband for A-TDM demodulator demodulation and decryption processing after being processed by the radio frequency unit, then the signals are sent to the main control unit through the user gateway and the user interface, and the main control unit performs unified control and management on forward release information and Beidou information sent by the Beidou transmitting and receiving module; the one-way receiving station sends an information on-demand application or query request to the publishing center through the Beidou short message transmission channel and uploads the position information of the one-way receiving station.
As a further improvement of the scheme, the antenna receiving unit comprises a single-receiving shipborne station antenna, a ground fixed station antenna and a vehicular station antenna.
As a further improvement of the scheme, in the process of sending an information on demand application or query request to a publishing center through a Beidou short message transmission channel and uploading the position information of the receiving station, firstly, a user inputs the information on demand or query request through a main control unit and sends the information on demand or query request to a Beidou satellite through an information processing unit and an antenna module of a Beidou transceiver module, and after the system carries out an authentication request on the uploaded information request, the queried or requested data is unicast or multicast to a corresponding terminal, so that the information request and query are returned.
As a further improvement of the scheme, the Beidou transceiver module comprises a Beidou antenna module, a Beidou module and an information processing module, and the Beidou module is communicated with the radio frequency unit through the Beidou antenna module and is connected with the main control unit through the information processing module.
The equipment list of the satellite broadcast data one-way receiving station is as follows:
the core equipment single receiving station IDU complete machine comprises a radio frequency unit, an A-TDM demodulator, a decryption unit, a user gateway, a user interface and a main control unit, and specific indexes and parameters of the core equipment IDU complete machine are as follows:
the core software marine remote sensing data satellite broadcasting single receiving station application software is also realized in a self-developed mode, and has the functions as shown in the following table:
receiving forward-issued information
The unidirectional receiving station receives satellite broadcast signals through the antenna unit, the satellite broadcast signals are processed by the radio frequency unit and then are sent to the baseband for a series of processing of the signals, firstly, the A-TDM demodulator demodulates the signals, then, the signals are decrypted and sent to the main control unit through the user gateway and the user interface, and the main control unit performs unified control and management on forward release information and Beidou information sent by the Beidou transceiver module.
Sending return data information
The one-way receiving station sends an information on-demand application or query request to the publishing center through the Beidou short message transmission channel and uploads the position information of the one-way receiving station. The process comprises the steps that firstly, a user inputs an information request for requesting or inquiring through a main control unit, the information request is sent to a Beidou satellite through an information processing unit and an antenna module of a Beidou transceiver module, and after the system carries out an authentication request on the information request to be uploaded, data inquired or requested are unicast or multicast (required by a plurality of users) to corresponding terminals, so that the information request and inquiry are returned.
The data transmission method of the satellite broadcast data one-way receiving station comprises the following steps:
receiving a forward service data flow transmitted by a broadcast satellite transparent forwarding main control station through an antenna feeder system;
SO1. the antenna feed system transforms the Ku frequency band to the L frequency band after LNB down-conversion processing and carries out filtering processing;
the signal of S02.L frequency band is sent to IDU equipment through a feeder line, the demodulation processing, LDPC decoding and de-encapsulation of the signal are completed, and finally IP packet data are obtained;
s03, analyzing and integrating the IP packet data by the system management control platform to generate an original data file;
s04, outputting the received broadcast content to a back-end data processing device after performing primary identification, classification, statistics and filtering on the received broadcast content;
and S05, timely storing and deleting the received broadcast content, maintaining the disk space and ensuring the stable operation of the server.
The Beidou return link data processing flow comprises the following steps:
s11, the system management control platform sends a Beidou short message to the master station or the small station through application software, wherein the Beidou short message comprises contents such as a short message, an equipment state, a service state, a positioning application and the like;
s12, the IDU equipment carries out IP packet analysis, extracts short message contents and then sends the short messages to the Beidou user machine through the RS232 serial port;
s13, a Beidou multi-frequency antenna, a radio frequency, a baseband and a main control board are integrated in the Beidou user machine, after a series of processing, short messages are finally sent to the Beidou satellite, and information pushing of a Beidou forward link is completed.
As a further improvement of the scheme, the Beidou forward link adopts an A-TDM forward broadcast system.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A one-way satellite broadcast data receiving station, comprising:
an antenna feeder system: the system mainly comprises a plurality of antenna receiving units, a radio frequency unit, a power amplifier and an LNB;
a system management control platform: the system mainly comprises a main control unit, a user gateway and a user interface;
the system application software comprises: the method comprises the steps of applying software of a marine remote sensing data satellite broadcast single receiving station;
the Beidou satellite communication system also comprises IDU equipment, a Beidou user machine, an A-TDM demodulator, a decryption unit and a Beidou transceiver module;
the unidirectional receiving station receives satellite broadcast signals through the antenna unit, the satellite broadcast signals are sent to a baseband for A-TDM demodulator demodulation and decryption processing after being processed by the radio frequency unit, then the signals are sent to the main control unit through the user gateway and the user interface, and the main control unit performs unified control and management on forward release information and Beidou information sent by the Beidou transmitting and receiving module; the one-way receiving station sends an information on-demand application or query request to the publishing center through the Beidou short message transmission channel and uploads the position information of the one-way receiving station.
2. The one-way satellite broadcast data receiving station of claim 1, wherein: the antenna receiving unit comprises a single-receiving shipborne station antenna, a ground fixed station antenna and a vehicle-mounted station antenna.
3. The one-way satellite broadcast data receiving station of claim 1, wherein: in the process of transmitting the information on demand application or query request to the issuing center through the Beidou short message transmission channel and uploading the position information of the receiving station, firstly, a user inputs the information on demand or query request through the main control unit and transmits the information on demand or query request to the Beidou satellite through the information processing unit and the antenna module of the Beidou transceiving module, and after the system carries out authentication request on the information uploading request, the system unicasts or multicasts the queried or requested data to the corresponding terminal to realize the return information request and query.
4. The one-way satellite broadcast data receiving station of claim 1, wherein: the Beidou transceiver module comprises a Beidou antenna module, a Beidou module and an information processing module, wherein the Beidou module is communicated with the radio frequency unit through the Beidou antenna module and is connected with the main control unit through the information processing module.
5. The data transmission method of the satellite broadcast data one-way receiving station is characterized by comprising the following steps:
and (3) receiving a service data flow:
SO1. the antenna feed system transforms the Ku frequency band to the L frequency band after LNB down-conversion processing and carries out filtering processing;
the signal of S02.L frequency band is sent to IDU equipment through a feeder line, the demodulation processing, LDPC decoding and de-encapsulation of the signal are completed, and finally IP packet data are obtained;
s03, analyzing and integrating the IP packet data by the system management control platform to generate an original data file;
s04, outputting the received broadcast content to a back-end data processing device after performing primary identification, classification, statistics and filtering on the received broadcast content;
s05, timely storing and deleting the received broadcast content, maintaining a disk space and ensuring stable operation of a server;
the Beidou link processing flow comprises the following steps:
s11, the system management control platform sends a Beidou short message to the master station or the small station through application software, wherein the Beidou short message comprises a short message, an equipment state, a service state and a positioning application;
s12, the IDU equipment carries out IP packet analysis, extracts short message contents and then sends the short messages to the Beidou user machine through the RS232 serial port;
s13, a Beidou multi-frequency antenna, a radio frequency, a baseband and a main control board are integrated in the Beidou user machine, after a series of processing, short messages are finally sent to the Beidou satellite, and information pushing of a Beidou forward link is completed.
6. The data transmission method of the satellite broadcast data unidirectional receiving station according to claim 5, characterized in that: the Beidou forward link adopts an A-TDM forward broadcast system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307605.9A CN107026688B (en) | 2017-05-03 | 2017-05-03 | Satellite broadcast data one-way receiving station and data transmission method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307605.9A CN107026688B (en) | 2017-05-03 | 2017-05-03 | Satellite broadcast data one-way receiving station and data transmission method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107026688A CN107026688A (en) | 2017-08-08 |
| CN107026688B true CN107026688B (en) | 2020-11-03 |
Family
ID=59528358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710307605.9A Active CN107026688B (en) | 2017-05-03 | 2017-05-03 | Satellite broadcast data one-way receiving station and data transmission method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107026688B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092649B (en) * | 2019-12-25 | 2021-09-28 | 武汉中原电子集团有限公司 | Single big dipper location fairway buoy based on global low orbit satellite communication |
| CN115037354B (en) * | 2022-06-06 | 2023-03-28 | 中国人民解放军32039部队 | Spatial data distribution service platform and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296677A (en) * | 1998-04-06 | 2001-05-23 | 艾利森公司 | Demodulation method and apparatus in high speed time division multiplexed packet data transmission |
| CN1325570A (en) * | 1998-09-01 | 2001-12-05 | 艾利森公司 | Asynchronous time division multiplexed packet data transmission system |
| WO2008108885A2 (en) * | 2006-09-26 | 2008-09-12 | Viasat, Inc. | Improved spot beam satellite systems |
| CN103390115A (en) * | 2013-08-02 | 2013-11-13 | 国家卫星海洋应用中心 | Seasat remote sensing observation data matching method and system |
| CN105007114A (en) * | 2015-06-30 | 2015-10-28 | 中国空间技术研究院 | Dual-mode satellite mobile broadcast system with two-channel return link, and transmission method |
| CN205539497U (en) * | 2016-04-08 | 2016-08-31 | 湖北华中电力科技开发有限责任公司 | Electric wire netting geographic information collection system based on reinforcing of big dipper ground |
-
2017
- 2017-05-03 CN CN201710307605.9A patent/CN107026688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296677A (en) * | 1998-04-06 | 2001-05-23 | 艾利森公司 | Demodulation method and apparatus in high speed time division multiplexed packet data transmission |
| CN1325570A (en) * | 1998-09-01 | 2001-12-05 | 艾利森公司 | Asynchronous time division multiplexed packet data transmission system |
| WO2008108885A2 (en) * | 2006-09-26 | 2008-09-12 | Viasat, Inc. | Improved spot beam satellite systems |
| CN103390115A (en) * | 2013-08-02 | 2013-11-13 | 国家卫星海洋应用中心 | Seasat remote sensing observation data matching method and system |
| CN105007114A (en) * | 2015-06-30 | 2015-10-28 | 中国空间技术研究院 | Dual-mode satellite mobile broadcast system with two-channel return link, and transmission method |
| CN205539497U (en) * | 2016-04-08 | 2016-08-31 | 湖北华中电力科技开发有限责任公司 | Electric wire netting geographic information collection system based on reinforcing of big dipper ground |
Non-Patent Citations (1)
| Title |
|---|
| DVB-RCS技术及其在航空卫星宽带通信中的应用;刘欣，等;《电子质量》;20120520;第18-20页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107026688A (en) | 2017-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9351335B2 (en) | Method for transmitting broadcast services in a radiocommunication cellular network through a femto base station, and corresponding femto base station | |
| CN107147435B (en) | Satellite broadcast data ground fixed two-way station and data transmission method thereof | |
| CN107135028A (en) | Ocean remote sensing data distributes ground master station and its data transmission method | |
| CN110677709B (en) | CPE (customer premises equipment) supporting live broadcast of 4K or 8K television and application system thereof | |
| CN101325595A (en) | Device for managing the reception by terminals of multimedia content transmitted by infrastructures | |
| CN107026688B (en) | Satellite broadcast data one-way receiving station and data transmission method thereof | |
| CN102934372A (en) | Satellite communication system and method for transmitting data | |
| CN104038843A (en) | Train comprehensive service platform on basis of gigabit Ethernet and WIFI (wireless fidelity) technology | |
| CN101534449A (en) | Receiving and transmitting method of a mobile digital broadcast television and used terminal | |
| CN101465829A (en) | Method and apparatus for transmitting and receiving layered modulation data | |
| EP2517378B1 (en) | Installation for emission/reception of satellite signals | |
| CN202183788U (en) | Vehicle-mounted information system | |
| CN104125515A (en) | Big data push system based on digital TV middleware technology | |
| CN201274578Y (en) | Mobile communication terminal | |
| CN108616301A (en) | A kind of method and system of the Big Dipper data transmission of high-capacity and high-speed degree | |
| CN101291237A (en) | Downlink data transmission method and apparatus for multicast and broadcast service | |
| CN101592740A (en) | The Beidou satellite automatic sending system of weather data | |
| CN100413251C (en) | Unicast data group addressing method and its system | |
| CN100438379C (en) | Information distribution system and method, and radio base station | |
| CN103078693A (en) | Power-line-based digital terrestrial multimedia broadcasting (DTMB) transmission method and device | |
| CN207251822U (en) | A kind of terrestrial DTV covers system | |
| CN201118589Y (en) | Network device based on satellite communication transmission and software forward | |
| CN101729174A (en) | Method for realizing digital mobile broadcast service, mobile terminal and system | |
| CN101145824B (en) | Network device based on satellite communication transmission and software forwarding | |
| CN101145823A (en) | Implementation device for shared outbound link of satellite network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 610000 Building 1, No. 11, Gaopeng Avenue, Chengdu hi tech Zone, Chengdu, Sichuan Patentee after: Chengdu Guoheng Space Technology Engineering Co.,Ltd. Address before: No. 1 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee before: CHENGDU GUOHENG SPACE TECHNOLOGY ENGINEERING Co.,Ltd. |