CN209676236U - Space-based Internet of Things DCS terminal - Google Patents
Space-based Internet of Things DCS terminal Download PDFInfo
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- CN209676236U CN209676236U CN201920991629.5U CN201920991629U CN209676236U CN 209676236 U CN209676236 U CN 209676236U CN 201920991629 U CN201920991629 U CN 201920991629U CN 209676236 U CN209676236 U CN 209676236U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a kind of space-based Internet of Things DCS terminal, comprising: space-based signal acquisition and transmitting processing module communicate to connect between satellite and baseband signal processing module respectively and carry out signal transmission；Baseband signal processing module communicates to connect between the space-based signal acquisition and transmitting processing module and central processing control module respectively and carries out signal transmission；Central processing control module communicates to connect between baseband signal processing module and land mobile communication module respectively and carries out signal transmission；Land mobile communication module communicates to connect between central processing control module and ground internet-of-things terminal respectively and carries out signal transmission.The scheme of space-based Internet of Things DCS terminal solves the compatibling problem of satellite communication and land mobile network, and the Internet of Things without ground network covering area accesses problem, reduces the power consumption, software and hardware expense and cost of terminal device.
Description
Technical field
The utility model relates to space-based Internet of Things fields of communication technology, whole more particularly, to a kind of space-based Internet of Things DCS
End.
Background technique
Existing space-based Internet of Things communication terminal in order to realize with existing satellite communication, be all made of Beidou or GPS satellite
The communication protocol of system, space-based Internet of Things DCS (dcs, Distributed Control based on LORA agreement
System) Terminal Design is not yet suggested.The processing mode of related art: above ground portion uses LORA wireless technology, and
Space-based part has used Beidou communication mould group, and satellite and ground terminal communication of internet of things use Beidou agreement, and ground Internet of Things is whole
Communication uses LORA technology between end, and conversion needs to pass through protocol conversion module between two kinds of agreements.
It due to star communicates between ground communication that agreement is different, adds additional conversion module, result in hardware resource, function
The overhead of consumption and cost.In addition, existing LORA Terminal Design is based on ground Internet of Things, directly adopted with satellite communication
With big-dipper satellite etc., does not consider to combine LORA satellite, therefore be not available in no network's coverage area.
To find out its cause, mainly there is three aspects:
One, " high threshold " characteristic of space-based Internet of Things.Since the business space flight development in China is slower, can possess independent
The enterprise and company of satellite load resource are less, and existing satellite resource serves country and its relevant departments, industry mostly.Therefore
It can not accomplish that satellite system is directly compatible with land mobile communication net in the design phase.
Two, LORA wireless technology is proposed to increase the overlay area of ground communication, not gives birth to for world communication.Cause
This, the existing satellite Internet of Things network communication system based on LORA technology does not consider to carry LORA load on satellite.
Three, covering, most object are realized in national most of range with the implementation of 5G mobile communication and mobile radio communication
The design basis of networked devices is based on mobile communications network, and does not consider no mobile radio communication situation.And in fact, on mountain
Area, forest, lake, ocean and some meagrely-populated areas, without the covering of mobile communications network.
Summary of the invention
(1) technical problems to be solved
The utility model will solve technical problem: in space-based Internet of Things Network Communication, satellite communication and land mobile communication net
The compatibling problem of network；The Internet of Things of no ground network covering area accesses problem；The power consumption of terminal device is big, software and hardware expense and
Problem at high cost.
(2) technical solution
In order to solve the above technical problems, the utility model provides a kind of space-based Internet of Things DCS terminal comprising: space-based
Signal acquisition and transmitting processing module, communicate to connect between satellite and baseband signal processing module respectively and carry out signal biography
It is defeated；Baseband signal processing module, respectively with the space-based signal acquisition and transmitting processing module and central processing control module
Between communicate to connect and carry out signal transmission；Central processing control module is moved with baseband signal processing module and ground respectively
It is communicated to connect between dynamic communication module and carries out signal transmission；Land mobile communication module, respectively with central processing control module
And it is communicated to connect between the internet-of-things terminal of ground and carries out signal transmission.
Preferably, the space-based signal acquisition includes: with transmitting processing module
Signal acquisition unit, for acquiring satellite-signal and being sent to processing unit；
Signal processing unit, for amplifying, filtering to the satellite-signal, frequency-conversion processing obtains intermediate-freuqncy signal, and
It is sent to transmitting unit；
Signal transmitter unit, for the intermediate-freuqncy signal to be sent to the baseband signal processing module.
Preferably, the acquisition unit uses U-F micro-strip antenna array.
Preferably, the baseband signal processing module includes:
Frequency conversion submodule, for the baseband signal will to be sent to by the space-based signal acquisition and transmitting processing module
The intermediate-freuqncy signal demodulation of reason module resolves to digital signal, or will be sent to the base by the central processing control module
The digital signal modulated of band signal processing module is at LORA signal and is converted to intermediate frequency；
LORA receives sending submodule, between the baseband signal processing module and the central processing controller
Signal transmission.
Preferably, the central processing control module includes:
Information analyzing sub-module, for parsing the digital signal sent by the baseband signal processing module, or analysis
The digital signal that framing is sent by land mobile communication module；
Track analyzing sub-module, for resolving satellite Covering time according to satellite-orbit information and being sent to timing management
Module；
Timing management submodule, for optimizing energy supply according to the satellite Covering time.
Preferably, land mobile communication module includes:
Data processing submodule, for being encoded, being modulated by the data after central processing control module parsing, become
Frequently, filtering and enhanced processing；
Mobile communication submodule is provided with LORA and FSK bimodulus gateway, for will the data processing submodule processing after
Data be sent to ground internet-of-things terminal；
Data-acquisition submodule, the number for being sent to the land mobile communication module for acquiring ground internet-of-things terminal
According to.
Preferably, the data-acquisition submodule is micro-strip antenna array.
It preferably, further include power supply control module, it is abnormal when thering is voltage, electric current to show for monitoring power supply state
Then cut off self-test.
Preferably, the space-based Internet of Things DCS terminal further include:
GPS signal acquisition module, for receiving satellite GPS signal and being sent to GPS signal processing module；And
GPS signal processing module, for handling the GPS signal, extracting location information and temporal information and being sent to
The central processing control module.
Preferably, the GPS signal acquisition module is GPS microstrip antenna, and the GPS signal processing module is GPS thumb
Machine.
(3) beneficial effect
The space-based Internet of Things DCS terminal of the utility model had both had the ability with satellite communication, but also with ground moving
The ability of network communication solves the compatibling problem of satellite communication and land mobile network.Meanwhile space-based Internet of Things DCS
Terminal can both use existing 4G/5G Land-Mobile-Network, and ground shifting can also be independently constructed by LORA ad hoc network mode
Dynamic network solves the problems, such as the Internet of Things access of no ground network covering area.Lead to since satellite has much larger than ground moving
The area coverage of communication network, therefore this terminal realizes data interaction by the bigger satellite communication of area coverage, can satisfy as
The Internet of Things access in mountain area, forest, lake, ocean and some meagrely-populated areas.In addition, the existing Internet of Things world is logical
Letter is generally used in the Beidou communication network of middle high rail, in contrast, corresponding satellite gateway in the embodiment of the utility model
For low rail gateway, only lower power consumption and cost is needed to communicate star can be realized, reduce the power consumption of terminal device, software and hardware is opened
Pin and cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the utility model space-based Internet of Things DCS terminal；
Fig. 2 is a certain embodiment schematic diagram according to the utility model space-based Internet of Things DCS terminal；
Fig. 3 is the short message data receiver OTDMA according to the utility model space-based Internet of Things DCS terminal communication access technology
Multiple access accesses frame structure diagram (2400bps).
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is made into a detailed description.Following reality
Example is applied for illustrating the utility model, but is not intended to limit the scope of the present invention.
As shown in Figure 1, the utility model provides a kind of space-based Internet of Things DCS Terminal Design based on LORA agreement, packet
Include space-based signal acquisition and transmitting processing module, baseband signal processing module, central processing control module, land mobile communication mould
Block and power supply control module.Space-based signal acquisition and transmitting processing module, carry satellite and base with space based radar respectively
It is communicated to connect between band signal processing module and carries out signal transmission；Baseband signal processing module, respectively with the space-based signal
It is communicated to connect between acquisition and transmitting processing module and central processing control module and carries out signal transmission；Central processing control
Module communicates to connect between baseband signal processing module and land mobile communication module respectively and carries out signal transmission；Ground
Face mobile communication module communicates to connect between central processing control module and ground internet-of-things terminal respectively and carries out signal
Transmission.Power supply control module then cuts off self-test when having voltage, electric current to show for monitoring power supply state extremely.
Space-based Internet of Things DCS terminal includes two communication links:
One is downlink: space based radar carries in downward signal of satellite feed-in space-based signal acquisition and transmitting processing module
Signal acquisition submodule, amplify by signal processing submodule, filtering, pass through signal transmitting after the intermediate-freuqncy signal of frequency-conversion processing
Receiving submodule enters baseband signal processing module；Baseband signal processing module is arranged using multimode, supports frequency shift (FS) modulation
The signal of FSK/LORA mode demodulates, and by intermediate-freuqncy signal demodulation, resolves to digital signal；Digital signal is entered by CAN bus
Central processing control module is parsed, and is sent to land mobile communication module, while central processing control module is according to day
Base radar carries satellite orbit information and resolves satellite Covering time, optimizes energy supply, guarantees that equipment long-time stable can
By work；Data after DCS terminal parses central processing control module are led to after coding, modulation, frequency conversion, filtering, amplification
It crosses mobile communications network and is sent to user's handheld device or ground based terminal.
Two be uplink: data are passed through ground by handheld device or ground based terminal control or acquisition data by user
Mobile communications network is transmitted in DCS terminal；The central processing control module of DCS terminal carries out analysis and group to data first
Frame, and be input in baseband signal processing module；This signal modulation at LORA signal and is converted to by baseband signal processing module
Intermediate frequency is then input to space-based signal acquisition and sending module；Finally, being led to by the transmitting terminal of space-based signal acquisition and sending module
It crosses antenna and this signal is transmitted to space based radar carrying satellite.
By uplink and downlink, the shared interconnection of world information is realized.
Meanwhile bimodulus gateway (LORA, FSK) and neighbouring 15km that space-based Internet of Things DCS terminal passes through land mobile communication
The Internet of Things covering in radius 15km circular scope is realized in other internet-of-things terminals interconnection in range.
In addition, power supply control module preferably wakes up terminal according to the Covering time of track parsing, it is secondary to select ground based terminal
Sequence jumps device and wakes up terminal.By waking up control to realize low power consumption control.
The space-based Internet of Things DCS terminal can receive space based radar and carry satellite broadcast signal.Broadcast message includes: terminal
ID, terminal send the frequency, send bit rate information.Ground based terminal is defaulted as FSK (frequency shift keying) mode, serious in electromagnetic interference
There is the preferred LORA mode of strong signal blocking interference region in region, it is ensured that message is normally sent.
Preferred embodiment:
It is illustrated in figure 2 a kind of specific implementation according to the utility model space-based Internet of Things DCS terminal.In the implementation
In example, space-based Internet of Things DCS terminal includes: power supply, microprocessor (MCU), bimodulus transceiver channel, U-F microstrip antenna, GPS days
Line, GPS thumb machine, the composition such as LORA ground-plane antenna and the base station LORA.Wherein:
1, GPS antenna receives satellite GPS signal, and GPS signal is passed in GPS thumb machine；GPS thumb machine believes GPS
It number is handled, extracts location information and temporal information and be sent in MCU.
2, U-F microstrip antenna communicates between realizing star ground, with being divided into star uplink and downlink.
Downlink: it is become intermediate-freuqncy signal from radio frequency after receiving satellite-signal and is transmitted to lower change by U-F microstrip antenna
In frequency device；Received signal is converted by intermediate frequency to base band and is transmitted to LORA reception by low-converter (HMC951A chip)
Module；LORA receiving module is realized by SX1278 chip, the baseband signal received is carried out demodulation process, and will be after demodulation
Signal is transmitted in MCU.MCU carries out frame decoding, descrambling to data, after decoding, by land mobile communication module transfer to other
In ground based terminal.
Uplink: MCU by receive, other ground based terminals by land mobile communication module transfer come data
It encoded, scrambled, after framing, being sent in LORA sending module；LORA sending module is also realized by SX1278 chip, will be connect
The data received are modulated, and by modulated base band data transmission into up-converter module；Up-converter module (HMC521A)
The baseband signal received is faded into intermediate frequency, and this intermediate-freuqncy signal is transmitted to space-based signal acquisition and transmitting module；Space-based letter
Number transmitting module is transmitted in satellite after amplifying this signal by power amplifier by U-F microstrip antenna.
Wherein, the preferred P1dBm of power amplifier is not less than the power amplifier of 30dBm.Satellite launch and receiving antenna are micro- using U-F
Band Antenna Design, to reduce antenna size；GPS antenna and LORA ground-plane antenna are also all made of micro-strip design；
3, by being interconnected between land mobile communication module realization ground based terminal.The embodiment is real using LORA ad hoc network mode
Existing, as shown in Fig. 2, identical between signal processing flow and star ground, difference is the selection of Antenna Design and power amplifier.Space-based Internet of Things
Other Internet of Things within the scope of bimodulus gateway (LORA, FSK) and neighbouring 15km that DCS terminal passes through land mobile communication module are whole
The Internet of Things covering in radius 15km circular scope is realized in end interconnection.
Key technology:
1, dual mode satellite/end message mechanics of communication
The space-based Internet of Things DCS terminal of the utility model supports FSK and LORA both of which.Use LORA mode Shi Xing
When ground transmission rate 4800bps, the reachable -131dBm of the receiving sensitivity of ground based terminal；When using FSK mode, in transmission rate
When 1200bps, the reachable -120dBm of receiver sensitivity；Dual mode reception switching can be realized by instructing state of a control machine to jump.
Wherein, side channel (5kHz) inhibits to be greater than 58dB, and offset ± 1MHz resistance to blocking is greater than 70dB, and offset is greater than
± 10MHz resistance to blocking is greater than 83dB, and mirror image inhibits to be greater than 50dB.It is preferable to use the pcb boards that dielectric constant is less than 50ppm/ DEG C
Material is, it is preferable to use frequency stability is not more than temperature compensating crystal oscillator/crystal of ± 2ppm.
2. Internet of Things DCS terminal communication access technology
The embodiment of the utility model can support 3000 DCS terminals simultaneously with LORA inserting of satellite.Ground space-based Internet of Things
DCS terminal realizes that multiple access accesses using the mode (FDMA+TDMA) that frequency division multiple access and time division multiple acess combine.With 2400bps code speed
For rate, single-frequency point channel capacity needs to be greater than 2000 users, then can choose 4 minutes frame total durations as TDMA, be divided into
For 2250 time slots (number of users is proportional therewith), each time slot 106.67ms, single time slot message bit are 256；
Different bit rates can adjust number of users according to the duration of frame, and the number of users that can be accommodated as needed adjusts the length of frame
Degree.Each time slot of 400bps bit rate is 640ms, includes total 375 time slots within a frame data long 4 minutes；The frame length time increases
It adds as 1 hour, it can be by increasing frequency point number and frame length when timeslot number increases inadequate for the corresponding user capacity number of 5625,400bps
Time solves.
Preferably network access mode is sent using target according to ground code distribution random slot automatically, the producing method of address code
To be reset before random number generator automatic pre-set mode or satellite to distant control function mode.This kind of operation system capacity is big, single
In regional area (single satellite coverage, covering diameter is greater than 2000km over the ground), to can provide no less than 2200 targets same in product shop
When access；4 frequency points are, it can be achieved that 8800 target Lothrus apterus targets are collected.
3, it automatically wakes up and Low-power Technology
Space-based Internet of Things DCS terminal can jump the mode of automatically waking up by ephemeris computation wake-up mode and sequential machine.
Ground satellite internet-of-things terminal prestores the ephemeris of satellite, according to the positioning and time service of GPS thumb machine, in conjunction with what is prestored
Ephemeris, it is automatic to calculate satellite transit time, thus move awake ground satellite internet-of-things terminal work certainly when satellite passes by, with
Satellite realizes communication.When satellite does not pass by, it can be used ground handheld device can be by ephemeris after update.
The preferably prior inhabited satellite ephemeris information of space-based Internet of Things DCS terminal, it is secondary to gate handheld device injection ephemeris letter
Breath.
Terminal has sequential machine automatic wake-up function.Ground based terminal uses the 1Hz frequency, monitors being not more than in 20ms time slot
RSSI value and DCS lead code wake up terminal device when RSSI is greater than threshold value.Receiving power consumption in 20m time slot is 40mW, remaining
It is less than 4mW in time.
The preferred ephemeris computation wake-up mode of space-based Internet of Things DCS terminal, it is secondary that sequential machine is selected to jump the mode of automatically waking up.This two
Kind selection guarantees the low-power consumption of ground terminal.
The space-based Internet of Things DCS terminal of the utility model had both had the ability with satellite communication, but also with ground moving
The ability of network communication solves the compatibling problem of satellite communication and land mobile network.Meanwhile space-based Internet of Things DCS
Terminal can both use existing 4G/5G Land-Mobile-Network, and ground shifting can also be independently constructed by LORA ad hoc network mode
Dynamic network solves the problems, such as the Internet of Things access of no ground network covering area.Lead to since satellite has much larger than ground moving
The area coverage of communication network, therefore can satisfy such as mountain area, forest, lake, ocean and some meagrely-populated regional objects
Networking access.
Existing Internet of Things world communication is generally used in the Beidou communication network of middle high rail, and in contrast, this is practical
Corresponding satellite gateway is low rail gateway in novel scheme, only lower power consumption and cost is needed to communicate star can be realized, is dropped
The low power consumption of terminal device, software and hardware expense and cost.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into modification.
Claims (10)
1. a kind of space-based Internet of Things DCS terminal characterized by comprising
Space-based signal acquisition and transmitting processing module, carry between satellite and baseband signal processing module with space based radar respectively
It communicates to connect and carries out signal transmission；
Baseband signal processing module, respectively with the space-based signal acquisition and transmitting processing module and central processing control module
Between communicate to connect and carry out signal transmission；
Central processing control module communicates to connect simultaneously between baseband signal processing module and land mobile communication module respectively
Carry out signal transmission；
Land mobile communication module communicates to connect between central processing control module and ground internet-of-things terminal go forward side by side respectively
The transmission of row signal.
2. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that at the space-based signal acquisition and transmitting
Managing module includes:
Signal acquisition submodule, for acquiring space based radar signal and being sent to signal processing submodule；
Signal processing submodule, for amplifying, filtering to the space based radar signal, frequency-conversion processing obtains intermediate-freuqncy signal,
And it is sent to signal transmitting receiving submodule；Or the intermediate-freuqncy signal that signal transmitting receiving submodule is sent is received, it handles as day
Base radar signal is simultaneously sent；
Signal emits receiving submodule, for the intermediate-freuqncy signal to be sent to the baseband signal processing module, or reception
The intermediate-freuqncy signal of the baseband signal processing module.
3. space-based Internet of Things DCS terminal as claimed in claim 2, which is characterized in that the signal acquisition submodule uses U-F
Micro-strip antenna array.
4. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that the baseband signal processing module includes:
Frequency conversion submodule, for the base band signal process mould will to be sent to by the space-based signal acquisition and transmitting processing module
The intermediate-freuqncy signal demodulation of block resolves to digital signal, or the base band letter will be sent to by the central processing control module
The digital signal modulated of number processing module is at LORA signal and is converted to intermediate frequency and is sent to space-based signal acquisition and transmitting is handled
Module；
LORA receives sending submodule, for realizing between the baseband signal processing module and the central processing control module
Digital signal reception and digital signal send.
5. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that the central processing control module includes:
Information analyzing sub-module will be obtained for parsing the digital signal sent by the baseband signal processing module after parsing
Data be sent to land mobile communication module, or the digital signal that analysis, framing are sent by land mobile communication module；
Track analyzing sub-module, when crossing top for carrying satellite-orbit information resolving space based radar carrying satellite according to space based radar
Between and be sent to timing management submodule；
Timing management submodule optimizes energy supply for carrying satellite Covering time according to the space based radar.
6. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that land mobile communication module includes:
Data processing submodule, for the data after central processing control module parsing to be encoded, are modulated, frequency conversion,
Filtering and enhanced processing；
Mobile communication submodule is provided with LORA and frequency shift (FS) modulation FSK bimodulus gateway, is used for the data processing submodule
Treated that data are sent to ground internet-of-things terminal for block；
Data-acquisition submodule, the data for being sent to the land mobile communication module for acquiring ground internet-of-things terminal.
7. space-based Internet of Things DCS terminal as claimed in claim 6, which is characterized in that the data-acquisition submodule is micro-strip
Aerial array.
8. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that further include power supply control module, use
In monitoring power supply state, self-test is then cut off extremely when having voltage, electric current to show.
9. space-based Internet of Things DCS terminal as described in claim 1, which is characterized in that further include:
GPS signal acquisition module, for receiving satellite GPS signal and being sent to GPS signal processing module；And
GPS signal processing module, for handling the GPS signal, extracting location information and temporal information and being sent to described
Central processing control module.
10. space-based Internet of Things DCS terminal as claimed in claim 9, which is characterized in that the GPS signal acquisition module is GPS
Microstrip antenna, the GPS signal processing module are GPS thumb machine.
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| CN201920991629.5U CN209676236U (en) | 2019-06-27 | 2019-06-27 | Space-based Internet of Things DCS terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112822251A (en) * | 2020-12-31 | 2021-05-18 | 中电科新型智慧城市研究院有限公司 | City group perception system |
| CN113014309A (en) * | 2021-02-23 | 2021-06-22 | 湖南斯北图科技有限公司 | Low-power-consumption space-based Internet of things data acquisition terminal and acquisition method |
| CN115085800A (en) * | 2022-07-27 | 2022-09-20 | 平安银行股份有限公司 | Ground satellite equipment, satellite transit monitoring method and storage medium |
| CN117768012A (en) * | 2024-02-22 | 2024-03-26 | 中国电子科技集团公司第十五研究所 | Transmission method and device based on space base |
-
2019
- 2019-06-27 CN CN201920991629.5U patent/CN209676236U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112822251A (en) * | 2020-12-31 | 2021-05-18 | 中电科新型智慧城市研究院有限公司 | City group perception system |
| CN113014309A (en) * | 2021-02-23 | 2021-06-22 | 湖南斯北图科技有限公司 | Low-power-consumption space-based Internet of things data acquisition terminal and acquisition method |
| CN113014309B (en) * | 2021-02-23 | 2022-08-02 | 湖南斯北图科技有限公司 | Low-power-consumption space-based Internet of things data acquisition terminal and acquisition method |
| CN115085800A (en) * | 2022-07-27 | 2022-09-20 | 平安银行股份有限公司 | Ground satellite equipment, satellite transit monitoring method and storage medium |
| CN115085800B (en) * | 2022-07-27 | 2022-11-29 | 平安银行股份有限公司 | Ground satellite equipment, satellite transit monitoring method and storage medium |
| CN117768012A (en) * | 2024-02-22 | 2024-03-26 | 中国电子科技集团公司第十五研究所 | Transmission method and device based on space base |
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