CN114499632A - Data transmission method based on fusion of heaven-earth satellite and broadband satellite - Google Patents
Data transmission method based on fusion of heaven-earth satellite and broadband satellite Download PDFInfo
- Publication number
- CN114499632A CN114499632A CN202111653453.0A CN202111653453A CN114499632A CN 114499632 A CN114499632 A CN 114499632A CN 202111653453 A CN202111653453 A CN 202111653453A CN 114499632 A CN114499632 A CN 114499632A
- Authority
- CN
- China
- Prior art keywords
- satellite
- data
- broadband
- fusion
- data transmission
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 64
- 230000004927 fusion Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000008447 perception Effects 0.000 abstract 1
- 238000010295 mobile communication Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile 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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
-
- 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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18558—Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations
-
- 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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
-
- 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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/18586—Arrangements for data transporting, e.g. for an end to end data transport or check
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention discloses a data transmission method based on fusion of an aerospace satellite and a broadband satellite, which comprises the following steps: s1, the user generates the narrow-band data of the heaven-earth through the application program and transmits the narrow-band data to the satellite wide-band and narrow-band fusion data gateway through the lightweight data transmission interface; and S2, accessing the broadband data transmitted by the satellite broadband indoor unit to the satellite broadband and narrowband fusion data gateway through the Ethernet module. According to the invention, important data transmission is carried out through link judgment and a lightweight protocol, the problems that the cost of the existing dual-satellite data link is too high, and the single broadband link is influenced by severe weather and is difficult to ensure the important data return are solved, the remote technical support before the broadband satellite terminal is started and the emergency communication requirement under special conditions are effectively ensured, the user experience perception is improved, and the overall safety and service quality of the satellite service are improved.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a data transmission method based on the fusion of an aerospace satellite and a broadband satellite.
Background
The heaven-earth satellite is the first mobile communication satellite independently researched and developed in China, and the satellite, a chip, a terminal, a gateway station and the like of the heaven-earth satellite are independently researched and developed in a whole system, so that the blank of an internal independent mobile communication system is filled, and the current situation of satellite mobile communication service in foreign countries is broken through. The satellite mobile communication system can be forwarded through the satellite relay, large-range, long-distance, flexible voice, short message and packet data services are provided for users, and the satellite mobile communication system has the advantages of comprehensive coverage, emergency communication and general service due to the fact that links are established quickly and the influence of weather on satellite frequency is small; meanwhile, the problems that the antenna needs to be kept approximately opposite to the satellite direction, the data communication speed is low, the use cost is high when the handset is used for communication, and a wide band satellite is used exist.
The broadband satellite communication network is a satellite communication network using frequencies of C, Ku and Ka, and the satellite communication rate is much higher than that of a mobile satellite communication network, so the satellite is often called a broadband satellite. The broadband satellite communication system can process and transmit data, images and videos at a high rate through a broadband satellite, and has great advantages in emergency communication and general service requiring high-rate communication; meanwhile, the problems that the satellite remote station is complex to the satellite and the communication link is easily affected by extreme weather exist.
In the actual satellite communication case, two different satellite resources are used as backups at present, although the safety is improved, the satellite network resources are rare and expensive, and the cost is high; voice mode remote technical support is often required before emergency satellite broadband networks are built. When influenced by environmental factors such as severe weather, in order to ensure the timeliness of data transmission contents and save the traffic bandwidth cost, the invention designs a data transmission method based on the fusion of an aerospace satellite and a broadband satellite to solve the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a data transmission method based on the fusion of an aerospace satellite and a broadband satellite.
The invention provides a data transmission method based on the fusion of an aerospace satellite and a broadband satellite, which comprises the following steps:
s1, the user generates the narrow-band data of the heaven-earth through the application program and transmits the narrow-band data to the satellite wide-band and narrow-band fusion data gateway through the lightweight data transmission interface;
s2, accessing the broadband data transmitted by the satellite broadband indoor unit to the satellite broadband and narrowband fusion data gateway through the Ethernet module;
s3: after receiving the data, the wide-band and narrow-band satellite fusion data gateway stores the data and sends the data to a data sending routing module for link judgment;
s4: when the broadband satellite network is judged to be unavailable (such as satellite network interruption, too high packet loss rate, or the situation that the broadband satellite terminal module is tried to be switched on or off by a broadband satellite terminal control board and the like), basic data transmission is completed by only utilizing the bottom protection of the skynet transmission circuit;
s5: the service application platform sends the weather data and the position information to an information monitoring platform of the client through the capacity open center for the client to deal with in an emergency;
and S6, after the gateway judges that the broadband satellite network is recovered, recovering real-time broadband information transmission according to a preset strategy or retransmitting unsuccessfully transmitted full information to the service application platform in idle, and supplementing the original data by the service application platform to the information monitoring platform of the client.
Preferably, in S3, if the satellite broadband network is available (the link is available, and the broadband terminal is enabled and available), the satellite broadband network performs full data volume transmission (broadband satellite data and skyward data), the data is stored and processed after reaching the service application platform, and after the processing is completed, the service application platform sends the data to the relevant network and the relevant application platform of the client through the capability opening center, respectively, for disposal and use.
Preferably, the transmission process comprises a wide-narrow band satellite fusion data gateway, a lightweight data transmission interface, an skyward satellite outdoor unit, an ACU controller, a wide-band satellite outdoor unit, a service application platform, and the like.
Preferably, the wide-narrow band satellite fusion data gateway is composed of an ethernet communication module, an skywalking satellite data module, a wide-band satellite terminal control panel and a wide-band satellite terminal indoor unit.
Preferably, the skywalking satellite data module corresponds to a skywalking satellite outdoor unit, and the transmission content includes satellite mobile voice, short messages and data.
Preferably, the ethernet module corresponds to a broadband satellite terminal control panel and a broadband satellite terminal indoor unit, and then accesses to a broadband network through the broadband satellite indoor unit, and transmits to a user system (such as a video and data transmission system) through WiFi and ethernet, where the transmission content is broadband traffic data.
Preferably, the content transmitted by the lightweight data transmission interface is composed of positioning information, heaven-earth voice, short messages and data information.
The invention has the beneficial effects that:
the invention discloses a data transmission method based on fusion of a wide-narrow band satellite fusion data gateway, a lightweight data transmission interface, an OTU (satellite over-the-air) outdoor unit, an ACU (access control unit) controller, a broadband satellite outdoor unit, a service application platform and the like, wherein the data transmission method is based on fusion of an OTU and a broadband terminal, redundancy is carried out on important application data in broadband satellite communication by using voice, short messages and narrowband data transmission capability of an OTU (satellite over-the-air) mobile communication system, and important data transmission is carried out by link judgment and a lightweight protocol.
Drawings
Fig. 1 is a schematic flow chart of a data transmission method based on a data transmission method in which an aerospace satellite and a broadband satellite are fused according to the present invention;
fig. 2 is a data transmission diagram of the fusion of the wide-band satellite and the narrow-band satellite based on the data transmission method of the fusion of the skynet satellite and the wide-band satellite according to the present invention;
fig. 3 is a flowchart of an end station side and a main station side of a data transmission method based on the fusion of an aerospace satellite and a broadband satellite according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In an embodiment, referring to fig. 1 to 3, a data transmission method based on the fusion of an aerospace satellite and a broadband satellite includes the following steps:
s1, the user generates the narrow-band data of the heaven-earth through the application program and transmits the narrow-band data to the satellite wide-band and narrow-band fusion data gateway through the lightweight data transmission interface;
s2, accessing the broadband data transmitted by the satellite broadband indoor unit to the satellite broadband and narrowband fusion data gateway through the Ethernet module;
s3: after receiving the data, the broadband and narrowband satellite fusion data gateway stores the data, and transfers the data to a data sending routing module for link judgment, if the satellite broadband network is judged to be available (the link is available, and a broadband terminal is opened and available), the satellite broadband network transmits the full data volume (broadband satellite data and skyward data), the data is stored and processed after the data is transmitted to a service application platform, and after the data is processed, the service application platform respectively sends the data to a related network and a client related application platform through a capacity opening center for disposal and use;
the transmission process comprises a wide-band and narrow-band satellite fusion data gateway, a lightweight data transmission interface, an all-weather satellite outdoor unit, an ACU controller, a wide-band satellite outdoor unit, a service application platform and the like;
the satellite data module corresponds to an satellite outdoor unit, and the transmission content comprises satellite mobile voice, short messages and data;
s4: when the broadband satellite network is judged to be unavailable (such as satellite network interruption, too high packet loss rate, or the situation that the broadband satellite terminal module is tried to be switched on or off by a broadband satellite terminal control board and the like), basic data transmission is completed by only utilizing the bottom protection of the skynet transmission circuit;
the wide-band and narrow-band satellite fusion data gateway is composed of an Ethernet communication module, an skynet satellite data module, a broadband satellite terminal control panel and a broadband satellite terminal indoor unit;
s5: the service application platform sends the weather data and the position information to an information monitoring platform of the client through the capacity open center for the client to deal with in an emergency;
the Ethernet module corresponds to a broadband satellite terminal control panel and a broadband satellite terminal indoor unit, is accessed to a broadband network through the broadband satellite indoor unit, and is transmitted to a user system (such as video and data transmission systems) through WiFi and Ethernet, and the transmission content is broadband flow data;
s6, after the gateway judges the broadband satellite network is recovered, the real-time broadband information transmission is recovered according to the preset strategy or the unsuccessfully transmitted full information is retransmitted to the service application platform in idle time, the original data is supplemented by the service application platform and is transmitted to the information monitoring platform of the client;
the content transmitted by the lightweight data transmission interface consists of positioning information, heaven-through voice, short messages and data information.
The invention can be used in the fields of frontier inspection, urban disaster emergency, government emergency, natural disaster emergency, forestry, water conservancy, local dispatching, maritime communication and the like, and is used in the application scenes of satellite fixed terminals, portable stations, vehicle-mounted stations, ship-mounted stations, unmanned aerial vehicles and the like.
(1) Various disaster recovery emergency and rescue communication applications
When a disaster happens, local or professional rescue workers need to arrive at a disaster site in time to carry out disaster relief treatment, light and reliable satellite communication equipment needs to be equipped for the rescue workers, smooth information communication is ensured, safety and efficiency of the disaster relief treatment are improved, and by equipping the wide-band and narrow-band satellite fusion terminal, the portable station/vehicle-mounted station equipment can support information transmission such as disaster site situation return, dangerous case reporting, command issuing and the like, timely communication requirements of the disaster site and a command center outside are met, front-end rescue worker position information is obtained to be scheduled in a coordinated manner, and rescue progress is known in real time.
To some satellite fixed stations of outlying region preinstallation, open transmission channel through sky expert satellite data control broadband satellite terminal module, the information of real-time transmission collection, to some vehicles, personnel are difficult to reach the region, still can gather passback front end actual picture, video through unmanned aerial vehicle/ship mode, further promote the validity of suing and labouring.
(2) Ocean transport safety monitoring
The condition of a cab is dynamically identified through a camera, warning information such as unmanned warning, hijacking warning and the like and videos are transmitted back to a user monitoring platform through a satellite link for a client to handle in real time, and the heaven-through satellite provides ship position information on one hand and serves as a key information feedback guarantee when the broadband satellite network environment is poor on the other hand.
The ocean broadband data transmission service receives the satellite data through the antenna on the ship, and the wide-band and narrow-band satellite fusion terminal is used as an information storage medium to carry out the data transmission service, so as to provide related services for users, and the method comprises the following steps:
recording data is generated according to video monitoring contents, and the data are correspondingly processed to form Tiantong narrow-band data; when a bandwidth network is interrupted in severe weather, the satellite broadband short data fusion gateway sends related information such as 'cab unattended alarm' and the like through an antenna channel; when data are sent to the heaven-through master station, the service application platform stores the data, the processed data are sent to an information monitoring platform of a client through the capacity opening module, the client finds an alarm, the satellite can get in contact with a ship through the heaven-through satellite voice and timely handle the data, when the satellite network manager judges that the broadband satellite network is recovered, the total data which are not successfully sent are sent to the service application platform, the service application platform completes the missing video information before the completion and sends the video information to the information monitoring platform of the client for the client to process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A data transmission method based on the fusion of an astronomical satellite and a broadband satellite is characterized by comprising the following steps:
s1, generating weather-pass narrow-band data by the user through the application program and transmitting the data to the satellite broadband and narrow-band fusion data gateway through the lightweight data transmission interface;
s2, accessing the broadband data transmitted by the satellite broadband indoor unit to the satellite broadband and narrowband fusion data gateway through the Ethernet module;
s3: after receiving the data, the wide-band and narrow-band satellite fusion data gateway stores the data and sends the data to a data sending routing module for link judgment;
s4: when the broadband satellite network is judged to be unavailable (such as satellite network interruption, too high packet loss rate, or the situation that the broadband satellite terminal module is tried to be switched on or off by a broadband satellite terminal control board and the like), basic data transmission is completed by only utilizing the bottom protection of the skynet transmission circuit;
s5: the service application platform sends the weather data and the position information to an information monitoring platform of the client through the capacity open center for the client to deal with in an emergency;
and S6, after the gateway judges that the broadband satellite network is recovered, recovering real-time broadband information transmission according to a preset strategy or retransmitting unsuccessfully transmitted full information to the service application platform in idle, and supplementing the original data by the service application platform to the information monitoring platform of the client.
2. The data transmission method based on the fusion of the skyward satellite and the broadband satellite as claimed in claim 1, wherein in S3, if the satellite broadband network is determined to be available (the link is available, the broadband terminal is enabled and available), the satellite broadband network performs full data volume transmission (the broadband satellite data and the skyward data), the data is stored and processed after reaching the service application platform, and after the processing is completed, the service application platform sends the data to the relevant network and the customer-relevant application platform through the capability opening center respectively for disposal and use.
3. The data transmission method based on the fusion of the skywalking satellite and the broadband satellite according to claim 1, wherein the transmission process is composed of a broadband and narrowband satellite fusion data gateway, a lightweight data transmission interface, a skywalking satellite outdoor unit, an ACU controller, a broadband satellite outdoor unit, a service application platform, and the like.
4. The data transmission method based on the fusion of the skywalking satellite and the broadband satellite according to claim 3, wherein the broadband and narrowband satellite fusion data gateway is composed of an Ethernet communication module, a skywalking satellite data module, a broadband satellite terminal control board and a broadband satellite terminal indoor unit.
5. The data transmission method based on the fusion of the skywalking satellite and the broadband satellite according to claim 4, wherein the skywalking satellite data module corresponds to a skywalking satellite outdoor unit, and the transmission content includes satellite mobile voice, short messages and data.
6. The method as claimed in claim 4, wherein the ethernet module corresponds to a broadband satellite terminal control board and a broadband satellite terminal indoor unit, and the ethernet module accesses a broadband network through the broadband satellite indoor unit and transmits the broadband network to a user system (such as video and data transmission systems) through WiFi and ethernet, and the transmission content is broadband traffic data.
7. The data transmission method based on the fusion of the skywalking satellite and the broadband satellite according to claim 3, wherein the content transmitted by the lightweight data transmission interface is composed of positioning information, skywalking voice, short messages and data information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653453.0A CN114499632B (en) | 2021-12-30 | 2021-12-30 | Data transmission method based on integration of space satellite and broadband satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653453.0A CN114499632B (en) | 2021-12-30 | 2021-12-30 | Data transmission method based on integration of space satellite and broadband satellite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114499632A true CN114499632A (en) | 2022-05-13 |
| CN114499632B CN114499632B (en) | 2024-04-16 |
Family
ID=81497233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111653453.0A Active CN114499632B (en) | 2021-12-30 | 2021-12-30 | Data transmission method based on integration of space satellite and broadband satellite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114499632B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116132300A (en) * | 2022-09-15 | 2023-05-16 | 电子科技大学 | Link identification method based on gradient lifting decision tree feature combination |
| CN118041432A (en) * | 2024-04-12 | 2024-05-14 | 成都迅翼卫通科技有限公司 | Direct-connection satellite terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070186251A1 (en) * | 2006-02-03 | 2007-08-09 | Horowitz Edward D | Emergency satellite network |
| CN206237399U (en) * | 2016-11-23 | 2017-06-09 | 北京坦达信息科技有限公司 | A kind of moving emergency communication terminal |
| CN106850042A (en) * | 2017-01-18 | 2017-06-13 | 成都科脉通信技术有限公司 | Double star backup fixed base stations |
| CN107302394A (en) * | 2017-06-19 | 2017-10-27 | 四川腾盾科技有限公司 | A kind of unmanned aerial vehicle (UAV) control method based on Big Dipper short message |
| CN112468323A (en) * | 2020-11-10 | 2021-03-09 | 南京大学 | Broadband and narrowband integrated communication equipment and system |
-
2021
- 2021-12-30 CN CN202111653453.0A patent/CN114499632B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070186251A1 (en) * | 2006-02-03 | 2007-08-09 | Horowitz Edward D | Emergency satellite network |
| CN206237399U (en) * | 2016-11-23 | 2017-06-09 | 北京坦达信息科技有限公司 | A kind of moving emergency communication terminal |
| CN106850042A (en) * | 2017-01-18 | 2017-06-13 | 成都科脉通信技术有限公司 | Double star backup fixed base stations |
| CN107302394A (en) * | 2017-06-19 | 2017-10-27 | 四川腾盾科技有限公司 | A kind of unmanned aerial vehicle (UAV) control method based on Big Dipper short message |
| CN112468323A (en) * | 2020-11-10 | 2021-03-09 | 南京大学 | Broadband and narrowband integrated communication equipment and system |
Non-Patent Citations (1)
| Title |
|---|
| 谌德军 等: "便携式宽窄带融合卫星通信终端在应急通信的应用及实践", 卫星应用, no. 12, pages 49 - 53 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116132300A (en) * | 2022-09-15 | 2023-05-16 | 电子科技大学 | Link identification method based on gradient lifting decision tree feature combination |
| CN116132300B (en) * | 2022-09-15 | 2024-04-30 | 电子科技大学 | Link identification method based on gradient lifting decision tree feature combination |
| CN118041432A (en) * | 2024-04-12 | 2024-05-14 | 成都迅翼卫通科技有限公司 | Direct-connection satellite terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114499632B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Darwish et al. | LEO satellites in 5G and beyond networks: A review from a standardization perspective | |
| CN106888266B (en) | Ship supervision system based on multi-network fusion and data exchange method thereof | |
| CN101635594B (en) | Satellite mobile communication system based on partial satellite baseband switching | |
| CN114448492B (en) | Economical data transmission method based on satellite broadband short data fusion | |
| CN205453694U (en) | Emergent command system of satellite communication based on image transmission | |
| CN114401033A (en) | Portable wide-narrow band fusion satellite communication terminal and method | |
| CN205304979U (en) | Emergency satellite communication image transmission system | |
| CN107509166A (en) | The method and system of multilink switching synchronous gateway based on earth-space communication | |
| CN101697252A (en) | System and method for monitoring vehicles in real time | |
| CN114499632A (en) | Data transmission method based on fusion of heaven-earth satellite and broadband satellite | |
| CN113596775A (en) | Unmanned aerial vehicle communication system | |
| CN115765831A (en) | One-station two-satellite communication system and method under same-orbit two-satellite coverage | |
| CN114710773A (en) | Emergency cooperative command system | |
| CN114286457B (en) | Shipborne terminal multi-mode communication method integrating VDES, beidou No. three and 4G/5G networks | |
| CN103731194A (en) | Emergency-meeting wireless communication system and method | |
| CN214046017U (en) | Unmanned aerial vehicle emergency networking architecture based on 230M power wireless private network | |
| CN212572976U (en) | Small-area fusion wide-narrow-band emergency communication system | |
| CN117318795A (en) | Air-to-ground transmission system and method supporting wide and narrow band link switching | |
| CN201323579Y (en) | Transmission system for sending command to designated ship side from shore side by satellite | |
| CN116667914B (en) | Emergency information service system and method based on satellite-borne unmanned aerial vehicle and high-flux satellite | |
| CN117041928A (en) | Integrated emergency rescue platform | |
| CN115314861B (en) | Automatic switching strategy and user management method based on marine multi-satellite link and gateway equipment | |
| CN113839703B (en) | Flexible forwarding system combining frequency resource optimization and link dynamic management technology and forwarding method thereof | |
| CN112924995A (en) | Remote control system and control method thereof | |
| CN208609108U (en) | A kind of maritime affairs emergency communication system |
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 |