CN108234013A - A kind of aircarrier aircraft real-time data transmission system and method - Google Patents
A kind of aircarrier aircraft real-time data transmission system and method Download PDFInfo
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- CN108234013A CN108234013A CN201711395381.8A CN201711395381A CN108234013A CN 108234013 A CN108234013 A CN 108234013A CN 201711395381 A CN201711395381 A CN 201711395381A CN 108234013 A CN108234013 A CN 108234013A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The present invention provides a kind of aircarrier aircraft real-time data transmission system and method, and wherein system includes information display module, further includes with lower module：For handling aircraft and the airborne mobile communication module of the wireless telecommunications at ground center；With the aircraft bus data acquisition interface being connected in mobile communication module；Export IP video flowings, the video monitoring module of ground destination for being sent directly to specify by the airborne mobile communication module；Connect the unit WIFI module of aircraft and a proprietary channel at the ground center；Passenger's Wi Fi modules of Internet access service are provided to the passenger in main cabin.The present invention realizes aircraft, and earthward control centre sends each item data on aircraft in real time, and crew can be assisted to carry out correct emergency processing, more sound assurance flight safety at the first time.
Description
Technical field
The present invention relates to the technical field of mobile communication, particularly a kind of aircarrier aircraft real-time data transmission system and side
Method.
Background technology
When aircarrier aircraft encounters thunderstorm in flight course, captain must distinguish thunder storm belt according to airborne weather radar
The height of thunderstorm intensity, property, range and moving direction, cloud base and cloud top, analysis situation determine to be diversion or make a return voyage standby as early as possible
Drop, and report the decision made to air traffic control service (ATC) immediately and secure permission.At present, captain is to minefield
Judgement can only lean on the weather radar of the machine, and can only wait aircrafts that could find and make decision in a certain range of minefield,
It can not prejudge and report in advance.
In aircarrier aircraft flight course, if an emergency situation is encountered on machine, such as hijacks a plane, passenger's burst disease, ground
Center can not know situation on machine at the first time.
Aircraft is in flight course, if the device fails of engine or other influences flight safety, unit people
Member can only carry out emergency processing by rule of thumb or voice contact ground maintenance center of serve.
The application for a patent for invention of Publication No. CN102938670A discloses a kind of air-ground fast band channel radio for aircraft
Believe system and method, including：Along multiple LTE ground base stations that pre-defined air route is installed, the LTE to adjoin each other
Between the base station of face there is overlapping communication overlay area, and wireless transmission and reception are carried out by LTE radio opens agreement；On aircraft
LTE communication terminal, wireless transmission and reception are carried out by LTE radio opens agreement, to be established at a high speed with the ground base station
Number is two-way according to communication link；In addition, equipped with multiple aircraft radio frequency antennas, the multiple aircraft radio frequency antennas warp on aircraft outer surface
The LTE communication terminal is connected by interconnection cable；Wherein, each ground base station is equipped with identical polarized radio-frequency antenna, the phase
Like-polarized radio-frequency antenna is the directional aerial for having certain wave beam broadband, and LTE communication terminal uses the multiple aircraft radio frequency
The radiofrequency signal of antenna reception ground base station transmitting and earthward Base Transmitter radiofrequency signal.The system uses general LTE
Standard is realized, it is impossible to be completed aircarrier aircraft well and be carried out real-time data transmission in flight course.
Invention content
In order to solve the technical issues of above-mentioned, the present invention proposes a kind of aircarrier aircraft real-time data transmission system and method,
Realize that earthward control centre sends each item data on aircraft to aircraft in real time, can assist crew to carry out just at the first time
True emergency processing, more sound assurance flight safety.
The first object of the present invention is to provide a kind of aircarrier aircraft real-time data transmission system, including information display module,
It further includes with lower module：
Airborne mobile communication module：For handling the wireless telecommunications of aircraft and ground center；
Aircraft bus data acquisition interface：It is connected with described in mobile communication module；
Video monitoring module：IP video flowings are exported, the ground specified is sent directly to by the airborne mobile communication module
Face destination；Unit WIFI module：It is to connect aircraft and a proprietary channel at the ground center；
Passenger's Wi-Fi module is to provide Internet access service to the passenger in main cabin.
Preferably, the airborne mobile communication module includes following submodule：
Base Band Unit：It is used to implement the upper-layer protocol of Airborne Terminal equipment and signaling processing, user face data processing, base band
At least one of function treatment and local operation maintenance function；
Radio frequency unit：It is used to implement Digital IF Processing, power amplifier, duplexer or wave filter and receives low noise and put
At least one of big device；
Connect optical fiber：For connecting the Base Band Unit and the radio frequency unit；
Antenna：For carrying out wireless signal with the ground center；
Ultrashort coaxial RF line：For connecting the radio frequency unit and the antenna.
In any of the above-described scheme preferably, the Base Band Unit is additionally operable to through CPRI or other interface protocols,
Base band I/Q signal is carried on to the radio frequency unit that distal end is transmitted on optical fiber.
In any of the above-described scheme preferably, the Base Band Unit include memory (DDR), processor (DSP/ARM), can
Program at least one of hardware (FPGA) and photoelectric converter.
In any of the above-described scheme preferably, the work step of the Base Band Unit is as follows：
Step 1：The normal transmission upstream data PUSCH/PUCCH/SRS on subscriber terminal equipment (UE), when recording current
T0 is carved, wherein PUSCH represents uplink control channel, and PUCCH represents Uplink Shared Channel, represents SRS uplink reference signals；
Step 2：TA0 is calculated according to upstream data in base station, and notifies the subscriber terminal equipment；
Step 3：Final TA values TA2 is calculated；
Step 4：Obtain the time synchronization adjustment amount at final T2 moment according to the TA2, and according to this to upstream data into
Row transmitting.
In any of the above-described scheme preferably, the step 3 is led to including setting the TA that the subscriber terminal equipment obtains
Know constantly for T1, set its uplink using this TA and provide the moment as T2, obtain time difference Δ T=T2-T0.
In any of the above-described scheme preferably, the step 3 further includes the movement according to the terminal within the Δ T moment
The TA2 is calculated in distance and its moving direction.
In any of the above-described scheme preferably, the step 3 includes following sub-step：
Step 31：Displacement distance Δ D=S × Δ T in Δ T time is calculated, wherein s represents flying speed；
Step 32：Calculate the corresponding sighting distance distance D0=F (TA0) of the TA0；
Step 33：The horizontal distance at the T2 moment to base station is calculated, formula is：
The level of (T0) between terminal and base station when wherein H represents initial
Distance；
Step 34：Calculate the sighting distance distance at the T2 moment to base stationWherein, V is high for flight
Degree；
Step 35：Calculate the value of the corresponding TA of the D2, TA2=G (D2).
In any of the above-described scheme preferably, the aircraft bus data acquisition interface is one-way data read module,
For reading corresponding flying quality from aircraft bus.
It is preferably in any of the above-described scheme, position data of the flying quality including Aircraft Vectoring System output,
At least one of data that the meteorological scan data and engine sensor of weather radar output summarize.
In any of the above-described scheme preferably, described information display module is fixed display screen, for showing machine
The information that group personnel specify.
In any of the above-described scheme preferably, the information specified includes the weather information and system that ground is sent
At least one of working condition.
The second object of the present invention is to provide a kind of aircarrier aircraft Real-time Data Transfer Method, acquires corresponding flight number
According to further comprising the steps of：
Step A：Aircraft bus data acquisition interface reads the flying quality from aircraft bus；
Step B：Airborne mobile communication module obtains the flying quality from the aircraft bus data acquisition interface；
Step C：The airborne mobile communication module carries out channel radio by airborne antenna outside cabin and ground ATG base stations
Data information, is sent to ground station server by letter in real time；
Step D：The ground station server analyzes the data information, and analysis result is sent to described
Airborne mobile communication module and ground service center；
Step E：Information display module receives and shows the information that the airborne mobile communication module sends over, and passes through machine
Group WIFI is sent to crew.
Preferably, the gas that the flying quality includes the position data of Aircraft Vectoring System output, weather radar exports
At least one of data summarized as scan data and engine sensor..
In any of the above-described scheme preferably, the airborne mobile communication module includes following submodule：
Base Band Unit：It is used to implement the upper-layer protocol of Airborne Terminal equipment and signaling processing, user face data processing, base band
At least one of function treatment and local operation maintenance function；
Radio frequency unit：It is used to implement Digital IF Processing, power amplifier, duplexer or wave filter and receives low noise and put
At least one of big device；
Connect optical fiber：For connecting the Base Band Unit and the radio frequency unit；
Antenna：For carrying out wireless signal with the ground center；
Ultrashort coaxial RF line：For connecting the radio frequency unit and the antenna.
In any of the above-described scheme preferably, the Base Band Unit is additionally operable to through CPRI or other interface protocols,
Base band I/Q signal is carried on to the radio frequency unit that distal end is transmitted on optical fiber.
In any of the above-described scheme preferably, the Base Band Unit include memory (DDR), processor (DSP/ARM), can
Program at least one of hardware (FPGA) and photoelectric converter.
In any of the above-described scheme preferably, the work step of the Base Band Unit is as follows：
Step 1：The normal transmission upstream data PUSCH/PUCCH/SRS on subscriber terminal equipment (UE), when recording current
T0 is carved, wherein PUSCH represents uplink control channel, and PUCCH represents Uplink Shared Channel, represents SRS uplink reference signals；
Step 2：TA0 is calculated according to upstream data in base station, and notifies the subscriber terminal equipment；
Step 3：Final TA values TA2 is calculated；
Step 4：Obtain the time synchronization adjustment amount at final T2 moment according to the TA2, and according to this to upstream data into
Row transmitting.
In any of the above-described scheme preferably, the step 3 is led to including setting the TA that the subscriber terminal equipment obtains
Know constantly for T1, set its uplink using this TA and provide the moment as T2, obtain time difference Δ T=T2-T0.
In any of the above-described scheme preferably, the step 3 further includes the movement according to the terminal within the Δ T moment
The TA2 is calculated in distance and its moving direction.
In any of the above-described scheme preferably, the step 3 includes following sub-step：
Step 31：Displacement distance Δ D=S × Δ T in Δ T time is calculated, wherein s represents flying speed；
Step 32：Calculate the corresponding sighting distance distance D0=F (TA0) of the TA0；
Step 33：The horizontal distance at the T2 moment to base station is calculated, formula is：
The level of (T0) between terminal and base station when wherein H represents initial
Distance；
Step 34：Calculate the sighting distance distance at the T2 moment to base stationWherein, V is high for flight
Degree；
Step 35：Calculate the value of the corresponding TA of the D2, TA2=G (D2).
A kind of aircarrier aircraft real-time data transmission system proposed by the present invention and method, can allow ground center to obtain in real time
Each item data on aircraft, including the various situations that weather information, aircraft operation information and aircraft occur, and for these feelings
Condition is handled it in time and real-time informing crew.
Description of the drawings
Fig. 1 is the module map of a preferred embodiment of aircarrier aircraft real-time data transmission system according to the invention.
Fig. 2 is the module of one embodiment of airborne communication module of aircarrier aircraft real-time data transmission system according to the invention
Figure.
Fig. 3 is the flow chart of a preferred embodiment of aircarrier aircraft Real-time Data Transfer Method according to the invention.
Fig. 4 is a reality of the airborne communication module computational methods of aircarrier aircraft real-time data transmission system according to the invention
Apply the flow chart of example.
Fig. 4 A be aircarrier aircraft real-time data transmission system according to the invention airborne communication module computational methods as
The TA value calculating method flow charts of embodiment illustrated in fig. 4.
Fig. 4 B are the data displaying of the embodiment as shown in Figure 4 of aircarrier aircraft real-time data transmission system according to the invention
Figure.
Fig. 5 is an embodiment of the meteorological information share method of aircarrier aircraft Real-time Data Transfer Method according to the invention
Flow chart.
Fig. 6 is an embodiment of the aircraft condition monitoring method of aircarrier aircraft Real-time Data Transfer Method according to the invention
Scheme of installation.
Specific embodiment
The present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Abbreviation
LTE：Long Term Evolution are forth generation (4G) one of mobile communication technologies and standard.
ATG：Air To Ground dispose base station by ground and realize the communication system covered to sky.
UE：User Equipment, subscriber terminal equipment.
TA：Timing Advance, Timing Advance.
eNodeB：The base station equipment of Evolved Node B, LTE.
PUCCH：Physical Uplink Control Channel, uplink control channel.
PUSCH：Physical Uplink Shared Channel, Uplink Shared Channel.
SRS：Sounding Reference Signal, uplink reference signals.
CPRI：Common Public Radio Interface come transmission base band by the way of number, are commonly used
Signal transmission between baseband control unit and RF remote unit.
Embodiment one
As shown in Figure 1, aircarrier aircraft real-time data transmission system includes airborne mobile communication module 100, aircraft bus number
According to acquisition interface 110, video monitoring module 130, unit WIFI module 140, passenger's Wi-Fi module 150 and information display module
160。
Airborne mobile communication module 100, based on the 4G LTE mobile communication technologies of ground, be equivalent to one it is high performance
4G mobile terminals on the one hand collected all data aboard, are handled, and are converted into 4G LTE high-speed radios letter
Number, ground installation 170 (including ATG ground networks 171 and applying data server 172) is sent to by airborne antenna.It is another
Aspect, airborne mobile communication module 100 is by airborne antenna 101, and real-time reception is from ground installation 170 (including ATG terrestrial networks
Network 171 and apply data server 172) 4G wireless signals, i.e. ground is sent to the data of aircraft, the internet including passenger
Data, video monitoring instruction etc..
Aircraft bus data acquisition interface 110 is a unidirectional data read module, according to the configuration of airline,
Corresponding flying quality is read from aircraft bus, the gas that the position data, weather radar such as Aircraft Vectoring System output export
Data summarized as scan data, engine sensor etc..Collected data can be carried out packing pressure by data acquisition interface
Contracting is sent to ground by airborne mobile communication module and runs maintenance center.Aircraft bus and aircraft operational data acquisition module
120th, weather radar 121 is connected with other data acquisition modules 122, obtains corresponding data.
Video monitoring module 130 exports IP video flowings, the ground for being sent directly to specify by airborne mobile communication module
Destination.
Unit Wi-Fi module 140 is to connect unit and a proprietary channel at airline ground center, can pass through
The channel carries out internal communication and operation management.
Passenger's Wi-Fi module 150 is to provide Internet access service to the passenger in main cabin, which is with unit Wi-Fi
Keep apart.
Information display unit 160 is as fixed display screen, for showing information that crew specifies, as
The weather information that face is sent, working condition of whole system etc..
Based on this system, the weather information that aircraft transmission weather radar scans is taken to ground by Ground Meteorological information
Business device collects the weather information on the aircraft of connection ATG networks, and the existing weather information on course line is supplied to every airplane.
Based on this system, the monitor video on aircraft can be real-time transmitted to ground, encounter the abnormal time, and ground center can be with first
Time ensures aircraft and the safety of passenger.By this system, the sensing data of each important equipment of aircraft and instrument can be real-time
Ground handling maintenance centre is passed to, in case of abnormal, terrestrial techniques team, crew's progress can assisted at the first time just
True emergency processing, more sound assurance flight safety.In addition, the ground center of airline can monitor every frame in real time
The health status of aircraft, is preventive from possible trouble.
Embodiment two
As shown in Fig. 2, include Base Band Unit 200, fibre circuit for resisting the mobile terminal device of high frequency cable waste
210th, radio frequency unit 220, ultrashort coaxial RF line 230 and antenna 240 form.
Base Band Unit 200 is made of memory 201, DSP/ARM202, FPGA203 and photoelectric converter 204.Base Band Unit is real
The upper-layer protocol of existing Airborne Terminal equipment and signaling processing, user face data processing, baseband functions processing.
Fibre circuit 210 is for connecting Base Band Unit 200 and radio frequency unit 220, for high-speed signal transmission.
Radio frequency unit 220 includes photoelectric converter 221, IF processing unit far from Base Band Unit 200, radio frequency unit 220
222nd, digital analog converter 223, filtering and frequency translation unit 224, radio frequency amplifier and low-noise amplifier 225 and duplex filtering
Device 226, realizes Digital IF Processing (including possible peak clipping, digital predistortion etc.), rf frequency and intermediate frequency it is mutual
Conversion, power amplifier, duplexer or wave filter receive low-noise amplifier etc.；By SMA, SMB or other antennal interfaces,
Connect external airborne antenna.
Photoelectric converter 221：It is the conversion into traveling optical signal and electric signal, is carried out at the same time connecing for related photosignal transmission
Mouth protocol processes.
IF processing unit 222：Be complete baseband signal and digital medium-frequency signal mutual conversion (i.e. Digital Up Convert with
Digital Down Convert), receive the automatic growth control etc. of signal
Digital analog converter 223：Analog signal sampling is turned digital signal synthesis analog signal, when receiving when being transmitting
Into digital signal etc.
Radio frequency amplifier and low-noise amplifier 225：Amplified signal when the former is transmitting, the latter are that amplification receives when receiving
Reduce additional noise while signal as far as possible
Duplexer filter 26：Transmission path and RX path and filtering useless signal is isolated
Ultrashort coaxial RF line 230 is for connecting radio frequency unit 220 and antenna 240, and length is about 0.5 meter, and the length is not
It can cause cable waste.
Antenna 240 is connected by ultrashort coaxial RF line 230 with radio frequency unit 220, for communicating with transmitting station, hair
Penetrate/receive wireless signal.
Embodiment three
Perform step 300, aircraft operational data acquisition module 120, weather radar 121 and other data acquisition modules 122
Acquire the corresponding flying quality of aircraft.Step 310 is performed, aircraft bus data acquisition interface 110 is read from aircraft bus to fly
Row data.Step 320 is performed, airborne mobile communication module 100 obtains the flight number from aircraft bus data acquisition interface 110
According to.Step 330 is performed, the airborne mobile communication module is by airborne antenna outside cabin 101 and ground installation 170 (including ATG
Ground network 171 and application data server 172) it carries out wireless communication, data information is sent in real time (the packet of ground installation 170
It includes ATG ground networks 171 and applies data server 172).Step 340 is performed, ground installation 170 is (including ATG ground networks
171 and apply data server 172) data information is analyzed, and analysis result is sent out by airborne antenna outside cabin 101
Give the airborne mobile communication module 100 and ground service center.Step 350 is performed, information display module receives 160 and shows
Show the information that the airborne mobile communication module 100 sends over, crew is sent to by unit WIFI module 140.
Example IV
Inside LTE communication standard, TA and distance have correspondence, and respectively with distance D=F (TA), TA=G (D) is represented.
As shown in figure 4, performing step 400, UE normal transmission upstream data PUSCH/PUCCH/SRS record current time
T0.Step 410 is performed, TA0 is calculated according to upstream data in base station, and notifies terminal.Step 420 is performed, what terminal obtained
It is T1 at the time of TA is notified, and its uplink emission time using this TA is T2, then obtains time difference Δ T=T2-T0；According to
Final TA values TA2 is calculated in the displacement distance and its moving direction of terminal in the Δ T moment.Step 420 includes following sub-step
Suddenly, (as shown in Figure 4 A)：Step 421 is performed, calculates displacement distance Δ D=S × Δ T in Δ T time, wherein s represents to fly
Scanning frequency degree.Step 422 is performed, calculates the corresponding sighting distance distance D0=F (TA0) of the TA0.Step 423 is performed, is calculated described
The T2 moment, formula was to the horizontal distance of base station：Step 424 is performed, is calculated
The T2 moment is to the sighting distance distance of base stationStep 425 is performed, calculates the corresponding TA's of the D2
Value, TA2=G (D2).
Step 430 is performed, according to the TA2 that above-mentioned steps obtain, obtains the time synchronization adjustment amount at final T2 moment, and
Upstream data is emitted according to this.
As shown in Figure 4 B, the horizontal distance of (T0) between terminal and base station when H represents initial, T0 is current time, and T2 is
Using the uplink emission time of this TA, D0 is the corresponding sighting distance distance D0 of TA0, and D2 is the T2 moment to the sighting distance distance of base station, Δ D
For the displacement distance in Δ T time, V is flying height, generally 8km to 10km.
Embodiment five
Step 500 is performed, the weather information that the weather radar on aircraft arrives scanning sends the information output bus of aircraft
On.Step 510 is performed, the data acquisition unit of airborne equipment reads required meteorological letter from airplane information output bus
Breath, and information is transmitted to airborne earth-space communication unit.Step 520 is performed, airborne earth-space communication unit passes through cabin in aircraft cabin
Outer airborne antenna is carried out wireless communication with ground ATG base stations, and weather information is sent to ground meteorological data server.Perform step
530, weather information display unit sends weather information request with ground meteorological data server；Alternatively, crew uses Pad
On App received and dispatched by WI-FI.Step 500 is performed, ground meteorological data server is sent to the request of weather information display unit
Weather information.
Embodiment six
Step 600 is performed, the data acquisition unit of system acquires user's specified data from aircraft bus, is related to key
The equipment such as such as engine, navigation equipment, flight control unit perform step 610, and data acquisition unit beats collected data
Packet encryption, ground monitoring center is sent to by airborne mobile communication module.Perform step 620, if ground monitoring center or
Person crew has found that airplane equipment has any exception, then both sides work in coordination at once, and timely investigation processing ensures flight peace
Entirely.
For a better understanding of the present invention, it is described in detail above in association with specific embodiments of the present invention, but is not
Limitation of the present invention.Any simple modification made to the above embodiment of every technical spirit according to the present invention, still belongs to
In the range of technical solution of the present invention.In this specification the highlights of each of the examples are it is different from other embodiments it
Locate, the same or similar part cross-reference between each embodiment.For system embodiment, due to itself and method
Embodiment corresponds to substantially, so description is fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
Claims (9)
1. a kind of aircarrier aircraft real-time data transmission system, including information display module, which is characterized in that further include with lower die
Block：
Airborne mobile communication module：For handling the wireless telecommunications of aircraft and ground center；
Aircraft bus data acquisition interface：It is connected with described in mobile communication module；
Video monitoring module：Export IP video flowings, the ground appearance for being sent directly to specify by the airborne mobile communication module
Ground；
Unit WIFI module：It is to connect aircraft and a proprietary channel at the ground center；
Passenger's Wi-Fi module is to provide Internet access service to the passenger in main cabin.
2. aircarrier aircraft real-time data transmission system as described in claim 1, it is characterised in that：The airborne mobile communication mould
Block includes following submodule：
Base Band Unit：It is used to implement the upper-layer protocol of Airborne Terminal equipment and signaling processing, user face data processing, baseband functions
At least one of processing and local operation maintenance function；
Radio frequency unit：It is used to implement Digital IF Processing, power amplifier, duplexer or wave filter and receives low-noise amplifier
At least one of；
Connect optical fiber：For connecting the Base Band Unit and the radio frequency unit；
Antenna：For carrying out wireless signal with the ground center；
Ultrashort coaxial RF line：For connecting the radio frequency unit and the antenna.
3. aircarrier aircraft real-time data transmission system as claimed in claim 4, it is characterised in that：The work of the Base Band Unit
Step is as follows：
Step 1：The normal transmission upstream data PUSCH/PUCCH/SRS on subscriber terminal equipment (UE) records current time T0,
Wherein PUSCH represents uplink control channel, and PUCCH represents Uplink Shared Channel, represents SRS uplink reference signals；
Step 2：TA0 is calculated according to upstream data in base station, and notifies the subscriber terminal equipment；
Step 3：Final TA values TA2 is calculated；
Step 4：The time synchronization adjustment amount at final T2 moment is obtained according to the TA2, and upstream data is sent out according to this
It penetrates.
4. aircarrier aircraft real-time data transmission system as claimed in claim 5, it is characterised in that：The step 3 includes setting
The TA notice moment that the subscriber terminal equipment obtains is T1, sets its uplink using this TA and provides the moment as T2, when obtaining
Between poor Δ T=T2-T0.
5. aircarrier aircraft real-time data transmission system as claimed in claim 9, it is characterised in that：The step 3 further includes root
According within the Δ T moment displacement distance of terminal and its moving direction the TA2 is calculated.
6. aircarrier aircraft real-time data transmission system as claimed in claim 7, it is characterised in that：The step 3 includes following
Sub-step：
Step 31：Displacement distance Δ D=S × Δ T in Δ T time is calculated, wherein s represents flying speed；
Step 32：Calculate the corresponding sighting distance distance D0=F (TA0) of the TA0；
Step 33：The horizontal distance at the T2 moment to base station is calculated, formula is：
The horizontal distance of (T0) between terminal and base station when wherein H represents initial；
Step 34：Calculate the sighting distance distance at the T2 moment to base stationWherein, V is flying height；
Step 35：Calculate the value of the corresponding TA of the D2, TA2=G (D2).
7. a kind of aircarrier aircraft Real-time Data Transfer Method, acquires corresponding flying quality, it is characterised in that：Further include following step
Suddenly：
Step A：Aircraft bus data acquisition interface reads the flying quality from aircraft bus；
Step B：Airborne mobile communication module obtains the flying quality from the aircraft bus data acquisition interface；
Step C：The airborne mobile communication module is carried out wireless communication by airborne antenna outside cabin and ground ATG base stations,
Data information is sent to ground station server in real time；
Step D：The ground station server analyzes the data information, and analysis result is sent to described airborne
Mobile communication module and ground service center；
Step E：Information display module receives and shows the information that the airborne mobile communication module sends over, and passes through unit
WIFI is sent to crew.
8. aircarrier aircraft Real-time Data Transfer Method as claimed in claim 7, it is characterised in that：The airborne mobile communication mould
Block includes following submodule：
Base Band Unit：It is used to implement the upper-layer protocol of Airborne Terminal equipment and signaling processing, user face data processing, baseband functions
At least one of processing and local operation maintenance function；
Radio frequency unit：It is used to implement Digital IF Processing, power amplifier, duplexer or wave filter and receives low-noise amplifier
At least one of；
Connect optical fiber：For connecting the Base Band Unit and the radio frequency unit；
Antenna：For carrying out wireless signal with the ground center；
Ultrashort coaxial RF line：For connecting the radio frequency unit and the antenna.
9. aircarrier aircraft Real-time Data Transfer Method as claimed in claim 8, it is characterised in that：The work of the Base Band Unit
Step is as follows：
Step 1：The normal transmission upstream data PUSCH/PUCCH/SRS on subscriber terminal equipment (UE) records current time T0,
Wherein PUSCH represents uplink control channel, and PUCCH represents Uplink Shared Channel, represents SRS uplink reference signals；
Step 2：TA0 is calculated according to upstream data in base station, and notifies the subscriber terminal equipment；
Step 3：Final TA values TA2 is calculated；
Step 4：The time synchronization adjustment amount at final T2 moment is obtained according to the TA2, and upstream data is sent out according to this
It penetrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711395381.8A CN108234013A (en) | 2017-12-21 | 2017-12-21 | A kind of aircarrier aircraft real-time data transmission system and method |
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| CN201711395381.8A CN108234013A (en) | 2017-12-21 | 2017-12-21 | A kind of aircarrier aircraft real-time data transmission system and method |
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| CN108234013A true CN108234013A (en) | 2018-06-29 |
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| CN109544432A (en) * | 2019-01-12 | 2019-03-29 | 乐宁宁 | A kind of method and device for realizing airline flights fortune control using aerial internet |
| CN110278023A (en) * | 2019-06-10 | 2019-09-24 | 航科院（北京）科技发展有限公司 | A kind of application system and method based on vacant lot broadband connections |
| CN110446182A (en) * | 2019-08-12 | 2019-11-12 | 北京多尼卡空联技术有限公司 | Airborne communication system |
| CN111510884A (en) * | 2020-05-09 | 2020-08-07 | 南京中科思蓝信息科技有限公司 | New route exploration real-time data transmission method |
| CN111884897A (en) * | 2020-07-29 | 2020-11-03 | 中国商用飞机有限责任公司 | Airborne equipment and method and system for wireless interconnection between airborne equipment |
| WO2023115297A1 (en) * | 2021-12-21 | 2023-06-29 | Qualcomm Incorporated | Initial access for message relaying using air-to-ground connections |
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