CN109450515A - A kind of large and medium-sized UAV Communication relay system - Google Patents
A kind of large and medium-sized UAV Communication relay system Download PDFInfo
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- CN109450515A CN109450515A CN201811505691.5A CN201811505691A CN109450515A CN 109450515 A CN109450515 A CN 109450515A CN 201811505691 A CN201811505691 A CN 201811505691A CN 109450515 A CN109450515 A CN 109450515A
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- 238000004891 communication Methods 0.000 title claims abstract description 56
- 230000011664 signaling Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 37
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 claims description 4
- 230000006855 networking Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
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- 238000012544 monitoring process Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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- 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
- H04B7/18502—Airborne stations
- H04B7/18504—Aircraft used as relay or high altitude atmospheric platform
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- 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
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- 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
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- 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
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- 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
- H04B7/18517—Transmission equipment in earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
Abstract
The invention discloses a kind of large and medium-sized UAV Communication relay system, including be mounted on unmanned plane airborne 4G broadband connections base station, sighting distance airborne data terminal, defend logical airborne data terminal, airborne interchanger, airborne protocol module, HD video encoder and high definition O-E Payload；And defend logical ground data terminal, ground control's control station and ground portable terminal；Logical ground data terminal is defended to connect with ground control's control station two-way signaling；Airborne 4G broadband connections base station forms video with ground portable terminal or other flying platforms, voice communication connect, and connect with airborne interchanger two-way signaling；Airborne interchanger is connect via sighting distance airborne data terminal with logical airborne data terminal two-way signaling is defended；High definition O-E Payload is connect via HD video encoder with airborne interchanger one way signal.Unmanned plane 4G relay function over the horizon range can be achieved in the present invention, and realizes wide area network access by satellite, realizes surface units or the relayed communications function of other flying platforms.
Description
Technical field
The invention belongs to UAV Communication fields, are related to a kind of large and medium-sized UAV Communication relay system.
Background technique
UAV system is divided into Aerial parts and above ground portion, Aerial parts, that is, unmanned aerial vehicle platform, and above ground portion includes one
A or multiple earth stations, operator, which is located at, carries out flight manipulation to unmanned plane in earth station and task carries out.
Unmanned Aerial Vehicle Data link is divided into sighting distance data-link and Wei Tong data-link, sighting distance data-link operating distance by unmanned plane with
The limitation of earth station's horizon range, general farthest operating distance are 250km~300km.Currently, being to realize nothing using logical data-link is defended
The technical way of the observing and controlling of man-machine system over the horizon and information transmission.Logical data-link is defended to defend using the communication of geostationary orbit
Star carries out relay transmission, is not limited by horizon range, as long as within the scope of satellite beams, it is general up to thousands of miles, it all can be real
Data between existing earth station and unmanned plane are transmitted, and can satisfy unmanned plane a wide range of motor-driven, remote number in operation flight
It is with the obvious advantage compared with sighting distance data-link according to the requirement of transmission.
Communication support is the critical support in significant task, if there is a situation where communications to be obstructed in execution task, is utilized
Large and medium-sized UAV flight 4G broadband connections base station constructs empty day one information network, it is mutual can be completed in a short time communication
Connection guarantees information transmission；In addition to this, for specific task environment such as border or complicated landform environment, conventional communication mode
It is difficult to the area covered, can effectively increase horizon communication distance and network coverage model using the communications relay ability of unmanned plane
It encloses, extends visual field range coverage, the communication during guarantee task.It is compared with satellite communication platform, UAV Communication relaying
Working principle is similar to satellite, but flying height is low, and system and arranging is simple, the communication capacity with low lag, thus disposes more
Add flexibly.
Past UAV system does not have broadband connections relay function generally, can not with front surface units or other fly
Row Platform communication, therefore cannot achieve the extension and multi-party coordinated of communication range and the visual field.With largely making for unmanned plane
With, communication, scouting, in terms of assume responsibility for more and more tasks, need unmanned plane to incorporate entire communication network
System, therefore unmanned plane need to install airborne 4G broadband connections base station additional, realize ground communicate on a large scale or with other flying platforms into
Row communication, meets Joint Task needs.In addition the natural calamities such as earthquake, forest fire protection, emergency communication, public security anti-terrorism be can be also used in
With boundary make an inspection tour etc. application in.
It is existing from rotor UAV system install airborne communication base station additional and carry out relayed communications use independent downlink
Data channel transmits mobile data and realizes the landing of high-altitude base station mobile handset signal to ground control station, and passes through wired mode
Public network is accessed, mobile communication is completed.This method needs to install data-interface additional in earth station and sets up ground-plane antenna, and by sighting distance
Scope limitation, when unmanned plane executes task at a distance, signal decaying is big, signal-to-noise ratio is low, and ground receiver effect is poor；Small-sized four
Axis unmanned plane, which installs 4G communication device additional, takes photo by plane, and domestic three big operators is supported, by passing video under Radio Link to ground
Base station.This method operating distance is short, relies on operator's base station location, and unmanned plane endurance voyage is small, is not suitable for field and appoints on a large scale
Business needs；Airliner installs Wireless Broadband Communication Systems additional, can be sent to main cabin core system information in wireless form
Ground data center supports passenger to pass through 2G, 3G mobile terminal access internet aboard, Ground Electronic can fly and wrap
More new content be wirelessly uploaded to electronic flight bag on machine, also can by the aircraft state data of onboard maintenance system and maintenance number
According to ground data center is sent to, the state of flight of aircraft is monitored in real time convenient for ground maintenance personnel, ensure the operation peace of aircraft
Entirely.This method is to have man-machine customization, and system is relative complex, and occupies large bandwidth.In addition, such unmanned plane and having man-machine is all deposited
In the problem that cruise duration is short, it is unable to satisfy prolonged mission requirements.
Summary of the invention
For the above problem for solving the prior art, the purpose of the present invention is to provide a kind of large and medium-sized UAV Communications to relay
System, it can be achieved that unmanned plane over the horizon range with the voice of surface units or other flying platforms, data and reconnaissance
Communication relay function.
The present invention on large and medium-sized unmanned plane by installing airborne 4G broadband connections base station equipment additional unmanned plane may be implemented
Reconnaissance between face command and control station, surface units and other flying platforms is shared, realizes the interconnection of voice, video information
Intercommunication, so that the information data that unmanned plane, surface units and other flying platforms are collected, which is rapidly distributed to other, scouts system
Unite simultaneously it is implemented to guide, make up someone's fixed wing aircraft and helicopter endurance, in terms of deficiency, be ground
Unit etc. provides air support, incorporates intelligence reconnaissance system, the communication for fast implementing each task node and association for UAV system
It is same to provide sound assurance.4G broadband connections base station equipment is loaded using large and medium-sized unmanned plane, supports ground large coverage
Interior communication, supplement and backup as ground base station.
To achieve the goals above, large and medium-sized UAV Communication relay system of the invention includes being mounted on unmanned plane
Airborne 4G broadband connections base station, sighting distance airborne data terminal, defend logical airborne data terminal, airborne interchanger, airborne protocol module,
HD video encoder and high definition O-E Payload；And defend logical ground data terminal, ground control's control station and ground portable end
End；It is described defend logical airborne data terminal and defend logical ground data terminal via telecommunication satellite composition defend logical data-link；It is described defend it is logical
Ground data terminal is connect with ground control's control station two-way signaling；The airborne 4G broadband connections base station is set using integrated
Meter, by independence networking, constructs the wireless coverage network of domain type, is formed with the ground portable terminal or other flying platforms
Video, voice communication connection, and connect with airborne interchanger two-way signaling；The airborne interchanger is via sighting distance on-board data
Terminal is defended logical airborne data terminal two-way signaling and is connect with described；The high definition O-E Payload its via HD video encoder with
The airborne interchanger one way signal connection, is used to acquire on a large scale and scouts video, and by data collected via described
Airborne interchanger passes to the airborne 4G broadband connections base station and ground control's control station.
It is preferred that the airborne 4G broadband connections base station uses forth generation mobile communication TD-LTE technical system, including channel list
Member, radio frequency unit, configuration crosspoint, business unit, audio-video unit and antenna for base station, have various types of user terminals
Interface supports registration, authentication, roaming, handover and the address Route Selection of user, and has audio-video service log-on and place
Manage module.
It is preferred that the sighting distance airborne data terminal is for completing uplink telecommand, the reception of information and Use of Video-TLM information
Transmission, have satellite communication link interface, can by synchronous serial interface receive defend logical link remote information, the sighting distance is airborne
There is image procossing board in data terminal, high definition photoelectric image data can be subjected to digital compression, and by the compound telemetering of image
Information source frame is output to outside and defends logical airborne data terminal.
It is preferred that the high definition O-E Payload includes electrooptical device, infrared facility, laser illuminator device, for unmanned plane
Neighbouring all kinds of fixations and mobile target carry out high resolution imaging and search.
It is preferred that there are the HD video encoder video for TCP/IP network, audio and data to carry out high quality pressure
Reduce the staff the coding unit of code.
The mating ground command and control station of logical ground data terminal is defended described in it is preferred that and is arranged in commanding in the rear control centre, is used for
Complete task phase ultra-viewing distance remote control, telemetering and information transmission.
It is preferred that ground control's control station includes link access unit, ground protocol module, ground interchanger and calculating
Machine, in which: the link access unit is as ground control's control station and the data-interface for defending logical ground data terminal, Yi Jiyu
The data-interface of ground protocol module；Voice, the video serial ports letter of the ground protocol module receives link access unit transmission
Number, it then changes into network signal and is sent to ground interchanger.
It is preferred that the ground portable terminal includes that platform, plate portable terminal, hand-held station, DV and pen are born in ground
Note is originally.
It is preferred that the airborne 4G broadband connections base station+data transmit speed between HD video encoder and airborne interchanger
Rate is less than or equal to 8192kbps, defends logical data-link forward data transmission rate less than or equal to 512kbps, back message transmission rate
Less than or equal to 8192kbps, it is small that high definition photoelectric video message transmission rate between platform is born on airborne 4G broadband connections base station and ground
In being equal to 8192kbps, data transmission between platform+hand-held station+plate portable terminal is born on airborne 4G broadband connections base station and ground
Rate is less than or equal to 8192kbps.
Compared with prior art, the invention has the following advantages that
1, the voice between earth station and unmanned plane, video, the transmission of remote-control romote-sensing data are not limited by horizon range, nobody
Machine over the horizon range by defending logical data-link flight when, earth station can pass through the airborne 4G broadband connections base of UAV flight
It stands and carries out voice, video communication and scout to believe with front surface units (personnel, fleet etc.) or other flying platforms as relaying
Breath is shared, so that the information data that unmanned plane, surface units, other flying platforms are collected, which is rapidly distributed to other, scouts system
It unites and it is implemented to guide, to realize that the communication of each task node, collaboration provide sound assurance, so that each side is cooperateed with and match
It closes.
2, voice and video data are transmitted by UAV TT & C's data-link, are not required to individually increase voice and video communication chain
Road, earth station are not required to set up ground base station antenna, can reduce earth station and integrate difficulty.Bear platform, plate portable terminal, hand in ground
Holding platform, DV and notebook etc. is portable equipment, and personnel are easy to carry about with one in mission area, easy to use, can fast quick access
Enter the 4G network of the building of unmanned plane.
3, the present invention carries out Video coding compression to high definition photoelectric image using HD video encoder, and the airborne broadband 4G is logical
Letter base station carries out coding compression to the voice and video data that ground portable terminal transmits, while high definition can be set in earth station
The video frame rate and code rate of video encoder and airborne 4G broadband connections base station are ensuring the clear continuous, video flowing of call voice
Unmanned plane is saved while smooth not Caton and defends logical data-link bandwidth, and does not influence the normal biography of other data in measuring and control data frame
It is defeated.
4, large and medium-sized unmanned plane has the characteristics that loading capacity is big, airborne period is long, is suitble to high and medium flight.Due to airborne 4G
The height of broadband connections antenna for base station is increased with unmanned plane and is increased, and angle of coverage is constantly adjusted with unmanned plane direction of rotation, energy
The covering of large area signal is effectively realized, task cost is greatly saved.
5, the aerial relay function of 4G is realized using large and medium-sized unmanned plane, has the ability of local networking, and logical by defending
It realizes wide area network access, by the long endurance feature of unmanned plane, at home and abroad still belongs to the first time, prospect is using wide.
Detailed description of the invention
Fig. 1 is UAV Communication relay system composition schematic diagram.
Fig. 2 is airborne 4G broadband connections base station composition schematic diagram.
Specific embodiment
With reference to the accompanying drawing, a specific embodiment of the invention is described in further detail.
As shown in Figure 1, a kind of large and medium-sized UAV Communication relay system provided by the invention, including be mounted on unmanned plane and put down
Airborne 4G broadband connections base station on platform, sighting distance airborne data terminal defend logical airborne data terminal, airborne interchanger, airborne association
Discuss module, HD video encoder and high definition O-E Payload；And defend logical ground data terminal, ground control's control station and ground
Portable terminal；It defends logical airborne data terminal and defends logical ground data terminal and logical data-link is defended by telecommunication satellite composition.
Airborne 4G broadband connections base station uses forth generation mobile communication TD-LTE technical system comprising channel unit is penetrated
Modules and the antenna for base station such as frequency unit, configuration crosspoint, business unit, audio-video unit, as shown in Fig. 2, outdoor machine moving frame
If.Equipment can independence networking, construct the wireless coverage network of domain type.It supports various user terminal to access, realizes wireless channel
Control.Support user registration, authentication, roaming, handover and address Route Selection, have audio-video business function registration with
Processing capacity.Airborne 4G broadband connections base station can provide access net (PMP) and two kinds of operating modes of ad hoc network (NTN) simultaneously, respectively
It is covered and the covering of 4G ad hoc network from using different frequency range frequency point to provide 4G access net.4G broadband connections antenna for base station is mainly used for sky
Empty, air-ground dialogue, completes the transmitting and receive capabilities of radiofrequency signal.The course of work of airborne 4G broadband connections base station is as follows: machine
Voice or vision signal that 4G broadband connections base station receives ground portable terminal are carried, radiofrequency signal completes signal filter in radio frequency unit
Wave, amplification and down coversion finally export intermediate-freuqncy signal and the processing such as are demodulated, decoded to channel unit, send to audio-video unit
Voice or Video coding are carried out according to video configuration parameter and network settings afterwards, airborne interchanger is sent to by network interface；Machine
Carry the video data that 4G broadband connections base station receives high definition O-E Payload, channel unit encodes it, modulation treatment, send to
Radio frequency unit completes up-conversion and enhanced processing, is finally launched by antenna for base station.
It includes flying control seat, load control seat and link monitoring seat that ground control's control station, which configures seat, wherein chain
It is responsible for being monitored the state for defending logical data-link in road monitoring seat.When unmanned plane flight over the horizon range, logical number is defended
Remote-control romote-sensing and reconnaissance data are transmitted according to chain, sighting distance airborne data terminal externally exports the remote-control data for defending logical data-link transmission,
Link access unit externally exports the telemetry for defending logical data-link transmission.Fly control seat, load control seat with serial ports and UDP
The form of multicast sends and receives remote-control romote-sensing data in local area network, and carries out corresponding position by flying-controlled box and load software
Reason.
Sighting distance airborne data terminal is mainly used for completing uplink telecommand, the reception of information and the hair of Use of Video-TLM information
It send, has satellite communication link interface function, can be received by synchronous serial interface and defend logical link remote information.Sighting distance on-board data is whole
The interface unit at end has to defending logical link remote information and sighting distance primary link remote information be total to the function that serial ports alternative exports.
Inside there is image procossing board, high definition photoelectric image data can be carried out to digital compression, and the compound telemetering information source frame of image is exported
Logical airborne data terminal is defended to outside.
High definition O-E Payload includes electrooptical device, infrared facility, laser illuminator device, to all kinds of solid near unmanned plane
Fixed and mobile target carries out high resolution imaging and search, unmanned plane by spiraling, the modes such as side view come execute patrol, scouting,
The tasks such as monitoring.
HD video encoder specifically for the video of TCP/IP network, audio and data carry out high quality compressed encoding and
Network transmission.
High definition O-E Payload and airborne 4G broadband connections base station pass through HD video encoder and built-in audio-video plate respectively
The signals such as video, voice, telemetering are sent to airborne interchanger by the modules such as card, and airborne protocol module receives the net of airborne interchanger
Network data are changed into the serial data of sighting distance airborne data terminal, and sighting distance airborne data terminal is compound by video, voice and telemetering
Data, which are output to, defends logical airborne data terminal, is then sent to by defending logical data-link and defends logical ground data terminal, defends logical ground
Data terminal passes through cable again and is sent to ground control's control station.
It defends the mating ground command and control station of logical ground data terminal and is arranged in commanding in the rear control centre, be mainly used for completing
Task phase ultra-viewing distance remote control, telemetering and information transmission.
Ground control's control station includes link access unit, ground protocol module, ground interchanger and computer, in which:
Link access unit is as ground control's control station and the data-interface for defending logical ground data terminal, and and ground
The data-interface of protocol module.
Voice, the video rs 232 serial interface signal of ground protocol module receives link access unit transmission, then change into network signal
It is sent to ground interchanger；Computer receives the voice of ground switch network, vision signal and passes through audio and video playing software
It is decoded into analog voice and video is played in real time；Unmanned aerial vehicle operator sends out the control instruction of HD video encoder
It is sent in the switch network of ground, ground protocol module receives the control instruction in the switch network of ground and transmitted by serial ports
It to link access unit, is transmitted to by link access unit and defends logical ground data terminal, defended logical ground data terminal and pass through again
It defends logical data-link and is sent to unmanned aerial vehicle platform.
Control instruction content include HD video encoder and airborne 4G broadband connections base station video configuration parameter and
The parameters such as network settings.
Ground portable terminal includes that platform, plate portable terminal, hand-held station, DV and notebook are born in ground,
In:
A portable terminal that platform is access band wireless network is born on ground, is internally integrated audio/video coding plate
Card realizes the multiple business application under moving condition, supports the business such as voice, video, data, short message, provides access 4G wide
Ability with communication base station is suitble to field rapid deployment to use, can unattended work.It is sent by receiving DV
Image, is transmitted to airborne 4G broadband connections base station and notebook, also can receive the high letter out of airborne 4G broadband connections base station transmission
Electrical image is transmitted to notebook, and notebook is decoded into video by audio and video playing software and is played in real time.
Hand-held station is a Portable intelligent terminal device, and integration of equipments TD-LTE communication module supports multimedia number
According to business, it is suitable for various field environments and uses, former and later two built-in video acquisition cameras supports video monitoring, conference applications.
Plate portable terminal is a multi-service intelligent terminal, and integration of equipments wireless communication module is, it can be achieved that TD-
The access of LTE, the type of business of support include voice, cluster, video, data, short message etc..
DV uses commercial DV.
Airborne 4G broadband connections base station and airborne interchanger transmit digital speech and compressed by network interface connection all the way
Video data.
High definition O-E Payload is connect with HD video encoder by SDI all the way, and HD video data are transmitted.
HD video encoder and airborne interchanger transmit control instruction and compressed video by network interface connection all the way
Data.
Airborne interchanger and airborne protocol module pass through network interface connection all the way, transmission control instruction, digital speech and video
Data.
Airborne protocol module is connect with sighting distance airborne data terminal by RS422 synchronous serial interface, and control instruction, number are transmitted
Voice and video data.
It defends logical airborne data terminal and is connect with sighting distance airborne data terminal by RS422 synchronous serial interface, transmission control instruction,
Digital speech, remote-control romote-sensing data and video data.
Logical ground data terminal and ground control's control station are defended by network interface connection, it is transmission control instruction, digital speech, distant
Control telemetry and video data.
Ground protocol module is connect with link access unit by RS422 synchronous serial interface, and control instruction, digital speech are transmitted
And video data.
Ground protocol module and ground interchanger pass through network interface connection all the way, transmission control instruction, digital speech and video
Data.
Ground interchanger and computer pass through network interface connection, transmission control instruction, digital speech, remote-control romote-sensing data and view
Frequency evidence.
DV is born platform with ground and is connect by HDMI, and image data is transmitted.
It bears platform and notebook and passes through network interface connection, transmitting video data in ground.
Airborne 4G broadband connections base station+message transmission rate is less than or equal between HD video encoder and airborne interchanger
8192kbps defends logical data-link forward data transmission rate and is less than or equal to less than or equal to 512kbps, back message transmission rate
8192kbps, airborne 4G broadband connections base station and ground are born high definition photoelectric video message transmission rate between platform and are less than or equal to
It is small that message transmission rate between platform+hand-held station+plate portable terminal is born on 8192kbps, airborne 4G broadband connections base station and ground
In equal to 8192kbps.
The course of work of system is as follows:
Airborne 4G broadband connections base station receives ground and bears platform, plate portable terminal, hand-held station or other flying platforms hair
The signals such as the video, the voice that send are converted into digital signal by modules such as built-in audio-video boards and are sent to machine by network interface
Interchanger is carried, while video data is sent to HD video encoder, HD video encoder by SDI by high definition O-E Payload
Compressed video data will be encoded, airborne interchanger is sent to by network interface, airborne interchanger is passed through net by airborne protocol module
The network data that mouth is sent passes through RS422 synchronous serial interface again and is sent to sighting distance airborne data terminal, and sighting distance airborne data terminal will
The digital signal is sent to by RS422 synchronous serial interface and defends logical airborne data terminal, defends logical airborne data terminal by defending logical number
It will be sent to comprising digital speech, video and downlink telemetry signal according to chain and defend logical ground data terminal, and defend logical ground data terminal
All data are sent to ground control's control station by network interface, the ground protocol module of ground control's control station passes through RS422
Then the voice and video rs 232 serial interface signal that synchronous serial interface receives link access unit is sent changes into network signal and is sent by network interface
Give ground interchanger.Unmanned aerial vehicle operator receives the letter such as voice, video of ground switch network by computer network interface
Number and analog voice and video are decoded by audio and video playing software played in real time, pass through and fly control and load controls software
Handle the data such as telemetering.
Conversely, unmanned aerial vehicle operator is sent to ground exchange by network interface to the control instruction of HD video encoder
In machine network, ground protocol module receives the control instruction in the switch network of ground by network interface and goes here and there by the way that RS422 is synchronous
Link access unit is transported in oral instructions, and ground control's control station is transmitted to by network interface defends logical ground data terminal, defends logical ground number
It is transmitted to according to terminal by defending logical data-link and defends logical airborne data terminal, defend the control instruction that logical airborne data terminal will demodulate
Sighting distance airborne data terminal is sent to by RS422 synchronous serial interface with remote information, sighting distance airborne data terminal is by control instruction
It is sent to airborne protocol module by RS422 synchronous serial interface, control instruction is sent to airborne by airborne protocol module by network interface
Interchanger, airborne interchanger is sent to HD video encoder by network interface and airborne 4G broadband connections base station carries out video configuration
Parameter and network settings etc..
Video data is sent to HD video encoder by SDI by high definition O-E Payload, and HD video encoder will be compiled
The compressed video data of code is sent to airborne interchanger by network interface, and airborne 4G broadband connections base station is received airborne by network interface
Video data in switch network, being sent to ground by antenna for base station, to bear platform, plate portable terminal or other flights flat
Platform.The high definition photoelectric image that platform receives the transmission of airborne 4G broadband connections base station is born on ground, is transmitted to notebook, pen by network interface
Note is originally decoded into video by audio and video playing software and is played in real time；Plate portable terminal receives airborne 4G broadband connections base
It stands and video is decoded by audio and video playing software is played in real time after the high definition photoelectric image sent；Other flying platforms connect
The high definition photoelectric image for receiving the transmission of airborne 4G broadband connections base station, passes ground command center back by respective data-link or makes
Video is decoded into the audio and video playing software on platform to be played in real time.
Claims (9)
1. a kind of large and medium-sized UAV Communication relay system, it is characterised in that: including the airborne broadband 4G being mounted on unmanned plane
Communication base station, sighting distance airborne data terminal defend logical airborne data terminal, airborne interchanger, airborne protocol module, HD video volume
Code device and high definition O-E Payload；And defend logical ground data terminal, ground control's control station and ground portable terminal；It is described defend it is logical
Airborne data terminal and defend logical ground data terminal via telecommunication satellite composition defend logical data-link；It is described to defend logical ground data terminal
It is connect with ground control's control station two-way signaling；
The airborne 4G broadband connections base station constructs the wireless coverage net of domain type by independence networking using Integration Design
Network is connect with the ground portable terminal or other flying platforms formation video, voice communication, and two-way with airborne interchanger
Signal connection；The airborne interchanger defends logical airborne data terminal two-way signaling company with described via sighting distance airborne data terminal
It connects；
The high definition O-E Payload is connect via HD video encoder with the airborne interchanger one way signal, is detectd for acquiring
Video is examined, and scouting video collected is passed into the airborne 4G broadband connections base station and ground via the airborne interchanger
Face command and control station.
2. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: the airborne broadband 4G is logical
Believe that base station uses forth generation mobile communication TD-LTE technical system, including channel unit, radio frequency unit, configuration crosspoint, industry
Business unit, audio-video unit and antenna for base station, have various types of user terminal interfaces, support the registration of user, authentication, overflow
Trip, handover and address Route Selection, and there is audio-video service log-on and processing module.
3. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: the sighting distance on-board data
Terminal is used to complete the transmission of uplink telecommand, the reception of information and Use of Video-TLM information, has satellite communication link and connects
Mouthful, it can be received by synchronous serial interface and defend logical link remote information, have image procossing board, energy in the sighting distance airborne data terminal
It is enough that high definition photoelectric image data are subjected to digital compression, and the compound telemetering information source frame of image is output to outside and defends logical on-board data
Terminal.
4. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: the high definition O-E Payload
Including electrooptical device, infrared facility, laser illuminator device, for all kinds of fixations and mobile target progress near unmanned plane
Imaging and search.
5. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: the HD video coding
The coding unit that there are device the video for TCP/IP network, audio and data to carry out compressed encoding.
6. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: described to defend logical ground data
The mating ground command and control station of terminal is arranged in commanding in the rear control centre, for completing task phase ultra-viewing distance remote control, telemetering
It is transmitted with information.
7. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: ground control's control
It stands including link access unit, ground protocol module, ground interchanger and computer, in which:
The link access unit is as ground control's control station and the data-interface for defending logical ground data terminal, and and ground
The data-interface of protocol module；
Voice, the video rs 232 serial interface signal of the ground protocol module receives link access unit transmission, then change into network signal
It is sent to ground interchanger.
8. large and medium-sized UAV Communication relay system according to claim 1, it is characterised in that: the ground portable terminal
Platform, plate portable terminal, hand-held station, DV and notebook are born including ground.
9. large and medium-sized UAV Communication relay system described according to claim 1~any one of 8, it is characterised in that: described
Airborne 4G broadband connections base station+message transmission rate is less than or equal between HD video encoder and airborne interchanger
8192kbps defends logical data-link forward data transmission rate and is less than or equal to less than or equal to 512kbps, back message transmission rate
8192kbps, airborne 4G broadband connections base station and ground are born high definition photoelectric video message transmission rate between platform and are less than or equal to
It is small that message transmission rate between platform+hand-held station+plate portable terminal is born on 8192kbps, airborne 4G broadband connections base station and ground
In equal to 8192kbps.
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