CN108155929A - T unit and its day lead to communication means all in a kind of day - Google Patents
T unit and its day lead to communication means all in a kind of day Download PDFInfo
- Publication number
- CN108155929A CN108155929A CN201711390133.4A CN201711390133A CN108155929A CN 108155929 A CN108155929 A CN 108155929A CN 201711390133 A CN201711390133 A CN 201711390133A CN 108155929 A CN108155929 A CN 108155929A
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- day
- communication
- leads
- terminal
- satellite
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- 238000004891 communication Methods 0.000 title claims abstract description 138
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 5
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010011469 Crying Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in 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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18567—Arrangements for providing additional services to the basic mobile satellite telephony service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of day, T unit and its day lead to communication means all, wherein, described device includes mobile terminal and day communication satellite communication terminal, the mobile terminal is connect with day communication satellite communication terminal, the day communication satellite communication terminal is provided with signal link block and data transmission module, satellite is led to by the signal link block and day and establishes communication connection, and pass through data transmission module and transmit voice, word and communication data are to the mobile terminal, pass through scheme of the present invention, multiple mobile terminals can lead to communication terminal with a day simultaneously and connect, realize that the day of multiple mobile terminals is believed all.Not only the communication requirement of Team Member had been met, but also has saved largely purchase the expense that day leads to terminal simultaneously.In addition the design of omnidirectional antenna solves the problems, such as that day is taken on the telephone, archaeology, exploration, patrol officer and vehicular applications etc. of tour pal, remote districts suitable for exploration mountain-climbing in the presence of a harsh environment impregnable real-time communication difficult to star.
Description
Technical field
The present invention relates to satellite communication field more particularly to a kind of day, T unit and its day lead to communication means all.
Background technology
In field of satellite mobile communication, China relies on foreign system for a long time, such as international maritime satellite system (i.e.
INMARSAT systems), Europe star system (i.e. Thuraya systems), comet system (i.e. Iridium systems), GlobalStar (i.e.
Global Star systems).Cost of use is high, and safety, controllability cannot ensure.Particularly Wenchuan County in Sichuan earthquake in 2008
In rescue work, although rescue group carries satellite mobile communication terminal (i.e. satellite phone), but due to being answering for foreign system
It with terminal, is restricted by objective condition, a hour more than ten cannot use, and Big Dipper terminal can only be used by having no alternative.Although Big Dipper terminal is not
It can make a phone call, but can be sent short messages based on big-dipper satellite, provide advantageous guarantee for the disaster relief at that time, played great work
With.It can be seen that the necessity and importance of development autonomous satellite mobile communication system.The China on the 6th of August in 2016 is in Xi Changwei
Star launching centre succeeds in sending up " day leads to No.1 " 01 star.The successful launch of this satellite opens China and possesses autonomous satellite shifting
The epoch of dynamic communication system have broken the external monopolization in China's field of satellite mobile communication and market, have gradually built the world
The mobile communications network of integrated seamless connection.
Invention content
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of day, T unit and its day be all
Letter method, it is intended to solve the problems, such as that mobile terminal realizes that day is believed all.
Technical scheme is as follows：
A kind of day T unit all, wherein, lead to communication terminal including mobile terminal and day, the mobile terminal leads to day
Communication terminal connects, and the day leads to communication terminal and is provided with signal link block and data transmission module, passes through the signal
Link block is led to satellite foundation with day and is communicated to connect, and transmit voice by data transmission module, and word and communication data are extremely
The mobile terminal.
Day T unit all, wherein, the day leads to communication terminal and further includes locating module, passes through the positioning mould
Block obtains user present position.
Day T unit all, wherein, the locating module is active BD/GPS antennas.
Day T unit all, wherein, the signal link block leads to communication module for day, by the day all
News module and day, which lead to satellite, establishes communication relations.
Day T unit all, wherein, the signal link block leads to satellite antenna for day.
Day T unit all, wherein, the signal link block is omnidirectional antenna.
Day T unit all, wherein, the day communication satellite communication terminal is additionally provided with day and leads to SIM card, by described
Its logical SIM card identification user identity；The day leads to SIM card for NANO-SIM cards.
Day T unit all, wherein, the mobile terminal leads to communication terminal with day and passes through bluetooth/wifi communication links
It connects.
A kind of day leads to communication means, wherein, including step：
A, mobile terminal and day lead to communication terminal foundation connection；
B, the day communication satellite communication terminal obtains the voice of mobile terminal, word and communication data, and described in transmission
Voice, word and communication data lead to satellite to day；
C, the voice that the acquisition for mobile terminal day communication satellite communication terminal transmission is returned, word and communication data.
The day leads to communication means, wherein, in the step A, the mobile terminal and day believe all terminal Bluetooth/
Wifi connections.
Advantageous effect：The invention discloses a kind of day, T unit and its day lead to communication means all, wherein, described device packet
Mobile terminal and day communication satellite communication terminal are included, the mobile terminal is connect with day communication satellite communication terminal, and the day, which leads to, to be defended
Star communication terminal is provided with signal link block and data transmission module, and leading to satellite with day by the signal link block builds
Vertical communication connection, and voice is transmitted by data transmission module, word and communication data are to the mobile terminal, by this hair
The bright scheme, multiple mobile terminals can lead to communication terminal with a day simultaneously and connect, and realize that the day of multiple mobile terminals leads to
Communication.Not only the communication requirement of Team Member had been met, but also has saved largely purchase the expense that day leads to terminal simultaneously.In addition omnidirectional antennas
The design of line solve the problems, such as day take on the telephone it is difficult to star, suitable for exploration mountain-climbing tour pal, remote districts archaeology, exploration,
The impregnable real-time communication in the presence of a harsh environment such as patrol officer and vehicular applications.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the structure diagram of day of the present invention T unit all.
Fig. 2 is that the day of day of the present invention T unit all leads to the structure diagram of communication terminal.
Fig. 3 is the preferred embodiment of day of the present invention T unit all, and day leads to communication terminal and two mobile terminals companies
Connect schematic diagram.
Fig. 4 is the step flow chart that day of the present invention leads to communication means.
Specific embodiment
The present invention provides a kind of day and leads to communication means in T unit and its day all, to make the purpose of the present invention, technical solution
And effect is clearer, clear and definite, the present invention is described in more detail below.It should be appreciated that specific implementation described herein
Example is only used to explain the present invention, is not intended to limit the present invention.
It please refers to Fig.1 and structure diagram that Fig. 2, Fig. 1 are day T unit all.Wherein, including mobile terminal 101 with
And day leads to communication terminal 102, the mobile terminal 101 leads to communication terminal 102 with day and connect, and the day leads to communication terminal 102 and sets
Signal link block 201 and data transmission module 202 are equipped with, leading to satellite by the signal link block 201 and day establishes
Communication connection, and pass through data transmission module 202 and transmit voice, word and communication data are described to the mobile terminal 101
The structure diagram of its logical communication terminal is as shown in Figure 2.
The invention discloses a kind of day T units all, can not only communicate when not having signal with the external world, more main
It wants, can realize the day of common mobile terminal telecommunication function all, mobile terminal be made to have the effect that day is believed all, specifically
, lead to communication terminal including mobile terminal and day, mobile terminal leads to communication terminal with day establishes connection, and day leads to communication terminal
Lead to passing of satelline signal link block with day and establish communication connection, and the voice of mobile terminal is obtained by data transmission module,
Word and communication data lead to satellite with day and establish communication connection, and the acquisition for mobile terminal day leads to the logical of communication terminal passback
Letter data, T unit, the mobile terminal lead to communication terminal with day and connect all in day of the present invention, can realize mobile terminal
Has day telecommunication function all, preferred embodiment, in order to save the cost of user, the day leads to communication terminal can be with multiple movements eventually
End connection a, that is, day, which leads to communication terminal, to be connect with multiple mobile terminals, and realization is one-to-many, has multiple mobile terminals
Telecommunication function, specific schematic diagram are as shown in Figure 3 all for it.
Further, day T unit all, wherein, the day leads to communication terminal and further includes locating module 203, leads to
It crosses the locating module 203 and obtains user present position.
T unit, the day lead to communication terminal and are additionally provided with locating module all in day of the present invention, can obtain user
Position, since device of the present invention is generally in the position of no signal, seeks help, therefore, obtain the position of user
It puts, facilitates and rescue etc..
Further, day T unit all, wherein, the locating module 203 is active BD/GPS antennas.
Device of the present invention, preferably described locating module are BD/GPS antennas.
Further, wherein, the signal link block 201 leads to communication module for day, leads to communication module by the day
Lead to satellite with day and establish communication relations.
In the present invention, the day communication satellite communication terminal further includes day and leads to communication module, and customer mobile terminal can be obtained
Voice, word and the communication data taken such as is decoded at processing, the data-signal that generation correspondence can identify, then is led to by day
Antenna sends the data-signal, for example, in the preferred embodiment, being provided with shortcut key in day communication satellite communication terminal, passing through
It presses shortcut key and sends distress signal, the day leads to the pressing signal that communication module obtains shortcut key, and corresponding conversion is believed into emergency
Number, it cries for help for example, sending the modes such as short message SOS.
Further, day T unit all, wherein, the signal link block 201 leads to satellite antenna for day.
Further, day T unit all, wherein, the signal link block 201 is omnidirectional antenna, is taken complete
To antenna, signal is more preferable, without debugging direction.
Device of the present invention, day communication satellite communication terminal are led to satellite with day and are attached, connected by link block
It connects, that is, day leads to the link block of satellite and day leads to satellite foundation and connects, and the present invention preferably signal link block is led to for day to be defended
Star antenna takes omnidirectional antenna, and signal is more preferable, and without debugging direction, traditional day leads to mobile phone, antenna alignment day is needed to lead to and is defended
Star, therefore after location determination, it is immovable that day leads to mobile phone, and day of the present invention T unit all, due to signal link block
It for omnidirectional antenna, is not limited by direction, therefore, the mobile terminal can be moved, then antenna direction is converted, alignment is defended
Star.
Further, day T unit all, wherein, the day, which leads to communication terminal 102 and is additionally provided with day, leads to SIM card,
SIM card is led to by the day and identifies user identity.
Device of the present invention, preferably described day, which leads to communication terminal and is provided with day, leads to SIM card, leads to SIM card by the day
User identity is identified, that is, each day leads to the mark that SIM card corresponds to user, convenient for when with day communication satellite communication, to user
Identity is determined.
Further, day T unit all, wherein, the day leads to SIM card for NANO-SIM cards.
Device of the present invention, preferably described day lead to SIM card for NANO-SIM cards, and NANO-SIM cards are also referred to as the 4th shape
Formula element integrated circuit plate is the SIM cards of mobile phones of a new generation.It is thinner than MICRO-SIM cards area smaller currently in use,
The present invention more preferably embodiment, the NANO-SIM cards lead to SIM card for day.
Further, day T unit all, wherein, the mobile terminal 101 leads to communication terminal 102 with day and passes through
Bluetooth/wifi communication connections.
Device of the present invention, preferably described mobile terminal lead to communication terminal with day and are connect by bluetooth/wifi, and connection is more
Add fast and stable.
Further, the invention also discloses a kind of days to lead to communication means, as shown in figure 4, being flowed for the step of the method
Cheng Tu, wherein, including step：
S1, mobile terminal and day, which lead to communication terminal, establishes connection；
S2, the day communication satellite communication terminal obtain the voice of mobile terminal, word and communication data, and described in transmission
Voice, word and communication data lead to satellite to day；
The voice that S3, the acquisition for mobile terminal day communication satellite communication terminal transmission are returned, word and communication data.
The specific implementation of the method for the invention, has been described above in aforementioned schemes, therefore does not repeat herein.
Further, the day leads to communication means, wherein, in the step S1, the mobile terminal is believed all with day
Terminal Bluetooth/wifi connections.
Present pre-ferred embodiments, in order to which day is allowed to lead to the communication quality that equipment can lead to Satellite network with day and become reconciled, equipment
Antenna must lead to satellite direction towards day and immovable in this way can in use, the very bad of user experience is such as
Be we according to product form, invent and used 180 degree omnidirectional antenna, solve the problems, such as that common day leads to ICBM SHF satellite terminal to star difficulty
It, can be to preset emergency number by long-press SOS keys when there is emergency equipped with special SOS button in the invention
It dials rescuing telephone and sends note of crying for help.
The day T unit all of the present invention, compared with maritime satellite telephone in the prior art, function is more complete, this
In invention, T unit, day lead to communication terminal and the mobile terminal foundation connection of user all in the day, and user can pass through intelligence
Mobile phone completes the effect of maritime satellite telephone, converses, sends short messages with the external world when no signal, even browses net
Page etc., after common smart mobile phone connects this equipment, it is possible to dial day and lead to satellite phone, internet is led on satellite simultaneously by day
And many smart mobile phones can be filled while share the invention equipment if a Small Groups use, reduce satellite mobile phone
Purchase volume can be connected by wired or wireless with equipment due to smart mobile phone, user can be day communication satellite communication device
It is placed on the place of sky ore deposit, and user can be interior indoors, dials day in tent etc. and lead to the such as satellite phone and effectively avoid
In severe outdoor environment, using satellite phone function, our equipment has used omnidirectional antenna, so not to the trouble of star,
Or else with the embarrassment that must could be conversed satelloid, increase the experience of user.
In conclusion the invention discloses a kind of day, T unit and its day lead to communication means all, wherein, described device packet
Mobile terminal and day communication satellite communication terminal are included, the mobile terminal is connect with day communication satellite communication terminal, and the day, which leads to, to be defended
Star communication terminal is provided with signal link block and data transmission module, and leading to satellite with day by the signal link block builds
Vertical communication connection, and voice is transmitted by data transmission module, word and communication data are to the mobile terminal, by this hair
The bright scheme, multiple mobile terminals can lead to communication terminal with a day simultaneously and connect, and realize that the day of multiple mobile terminals leads to
Communication.Not only the communication requirement of Team Member had been met, but also has saved largely purchase the expense that day leads to terminal simultaneously.In addition omnidirectional antennas
The design of line solve the problems, such as day take on the telephone it is difficult to star, suitable for exploration mountain-climbing tour pal, remote districts archaeology, exploration,
The impregnable real-time communication in the presence of a harsh environment such as patrol officer and vehicular applications.
It should be understood that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of day T unit all, which is characterized in that lead to communication terminal including mobile terminal and day, the mobile terminal with
Its logical communication terminal connection, the day leads to communication terminal and is provided with signal link block and data transmission module, by described
Signal link block is led to satellite foundation with day and is communicated to connect, and passes through data transmission module and transmit voice, word and communication number
According to the extremely mobile terminal.
2. day according to claim 1 T unit all, which is characterized in that the day communication satellite communication terminal further includes fixed
Position module obtains user present position by the locating module.
3. day according to claim 2 T unit all, which is characterized in that the locating module is active BD/GPS days
Line.
4. day according to claim 1 T unit all, which is characterized in that the signal link block interrogates mould all for day
Block leads to communication module and day by the day and leads to satellite and establishes communication relations.
5. day according to claim 1 T unit all, which is characterized in that the signal link block leads to satellite day for day
Line.
6. day according to claim 5 T unit all, which is characterized in that the signal link block is omnidirectional antenna.
7. day according to claim 4 T unit all, which is characterized in that the day, which leads to communication terminal and is additionally provided with day, to be led to
SIM card leads to SIM card by the day and identifies user identity；The day leads to SIM card for NANO-SIM cards.
8. day according to claim 1 T unit all, which is characterized in that the mobile terminal leads to communication terminal with day and leads to
Cross bluetooth/wifi communication connections.
9. a kind of day leads to communication means, which is characterized in that including step：
A, mobile terminal and day lead to communication terminal foundation connection；
B, the day communication satellite communication terminal obtains the voice of mobile terminal, word and communication data, and transmits the voice,
Word and communication data lead to satellite to day；
C, the voice that the acquisition for mobile terminal day communication satellite communication terminal transmission is returned, word and communication data.
10. day according to claim 9 leads to communication means, which is characterized in that in the step A, the mobile terminal with
It believes terminal Bluetooth/wifi connections all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390133.4A CN108155929A (en) | 2017-12-21 | 2017-12-21 | T unit and its day lead to communication means all in a kind of day |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390133.4A CN108155929A (en) | 2017-12-21 | 2017-12-21 | T unit and its day lead to communication means all in a kind of day |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108155929A true CN108155929A (en) | 2018-06-12 |
Family
ID=62464066
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711390133.4A Pending CN108155929A (en) | 2017-12-21 | 2017-12-21 | T unit and its day lead to communication means all in a kind of day |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150289A (en) * | 2018-09-27 | 2019-01-04 | 北京爱科迪通信技术股份有限公司 | A kind of number biography emergency communication system |
| CN109361450A (en) * | 2018-11-23 | 2019-02-19 | 南京控维通信科技有限公司 | Voice suitable for satellite communication equipment is assisted to star method |
| CN109714834A (en) * | 2018-12-30 | 2019-05-03 | 北京华力创通科技股份有限公司 | Communication means, apparatus and system |
| CN111082854A (en) * | 2018-10-18 | 2020-04-28 | 南京眼湖信息科技有限公司 | Portable satellite terminal for Tiantong cat |
| CN113395102A (en) * | 2021-06-11 | 2021-09-14 | 天津大学 | Self-adaptive satellite communication equipment and link intelligent selection method |
| CN114938239A (en) * | 2022-06-30 | 2022-08-23 | 南京眼湖信息科技有限公司 | Heaven-earth satellite voice data transmission terminal device and data transmission method |
| CN115118328A (en) * | 2022-06-21 | 2022-09-27 | 浙江吉利控股集团有限公司 | Vehicle satellite communication method, device, equipment and computer readable storage medium |
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| CN106443714A (en) * | 2016-09-14 | 2017-02-22 | 西安远眺卫星通信有限公司 | Satellite terminal and method |
| CN106685516A (en) * | 2017-02-06 | 2017-05-17 | 北京军盛科技发展有限公司 | Data transmission system based on the space-based communication |
| CN208079068U (en) * | 2017-12-21 | 2018-11-09 | 深圳华力创通科技有限公司 | A kind of day T unit all |
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| US20150147971A1 (en) * | 2012-04-13 | 2015-05-28 | Asia Pacific Satellite-Communications Inc. | Portable terminal auxiliary device having satellite communication function |
| CN105429693A (en) * | 2015-12-18 | 2016-03-23 | 航天恒星科技有限公司 | Satellite mobile terminal |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150289A (en) * | 2018-09-27 | 2019-01-04 | 北京爱科迪通信技术股份有限公司 | A kind of number biography emergency communication system |
| CN109150289B (en) * | 2018-09-27 | 2022-03-04 | 北京爱科迪通信技术股份有限公司 | Data transmission emergency communication system |
| CN111082854A (en) * | 2018-10-18 | 2020-04-28 | 南京眼湖信息科技有限公司 | Portable satellite terminal for Tiantong cat |
| CN109361450A (en) * | 2018-11-23 | 2019-02-19 | 南京控维通信科技有限公司 | Voice suitable for satellite communication equipment is assisted to star method |
| CN109361450B (en) * | 2018-11-23 | 2020-08-11 | 南京控维通信科技有限公司 | Voice-assisted satellite alignment method suitable for satellite communication equipment |
| CN109714834A (en) * | 2018-12-30 | 2019-05-03 | 北京华力创通科技股份有限公司 | Communication means, apparatus and system |
| CN113395102A (en) * | 2021-06-11 | 2021-09-14 | 天津大学 | Self-adaptive satellite communication equipment and link intelligent selection method |
| CN113395102B (en) * | 2021-06-11 | 2022-10-04 | 天津大学 | Self-adaptive satellite communication equipment and link intelligent selection method |
| CN115118328A (en) * | 2022-06-21 | 2022-09-27 | 浙江吉利控股集团有限公司 | Vehicle satellite communication method, device, equipment and computer readable storage medium |
| CN114938239A (en) * | 2022-06-30 | 2022-08-23 | 南京眼湖信息科技有限公司 | Heaven-earth satellite voice data transmission terminal device and data transmission method |
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