CN111901789A - Maritime emergency network communication system - Google Patents
Maritime emergency network communication system Download PDFInfo
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- CN111901789A CN111901789A CN202010735419.7A CN202010735419A CN111901789A CN 111901789 A CN111901789 A CN 111901789A CN 202010735419 A CN202010735419 A CN 202010735419A CN 111901789 A CN111901789 A CN 111901789A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The invention provides a maritime emergency network communication system, and relates to the technical field of maritime emergency network communication. The system comprises a space-based communication network system, a sea-based communication network system, a ground fixed station and a ground network management control center. An antenna-based communication network system comprising: low earth orbit satellite constellations and geostationary satellite constellations; the air-based communication network system consists of an unmanned aerial vehicle group, and the sea-based communication network system comprises a sea-based rescue platform and an ocean observation network platform; the ground fixed station carries ground satellite communication equipment; the ground network management control center manages data information transmitted to the ground fixed station by the space-based communication network system, the air-based communication network system and the sea-based communication network system in a unified manner. The network communication system can support the communication requirement of marine emergency rescue and the real-time emergency command communication requirement of the ground command center, not only expands the coverage area of the marine emergency communication network, but also effectively utilizes space-based network resources.
Description
Technical Field
The invention relates to the technical field of marine emergency network communication, in particular to a marine emergency network communication system.
Background
Maritime communication is concerned with the safety and communication problems of maritime workers and is beneficial to the rapid development of maritime economy and business. Since the marine environment is complex and variable, the development of the marine communication system is significantly delayed from the terrestrial communication system. The communication system used at sea is a traditional marine communication system at present, and the traditional marine communication system cannot undertake emergency communication tasks when facing emergency situations at sea due to the fact that the traditional marine communication system is incompatible in system mode, different in communication bandwidth, blind areas exist in coverage areas and a high-efficiency unified management mechanism is lacked. Therefore, a need exists for a marine emergency network communication system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a maritime emergency network communication system.
The technical scheme adopted by the invention is as follows:
a maritime emergency network communication system comprises a space-based communication network system, a sea-based communication network system, a ground fixed station and a ground network management control center;
the space-based communication network system comprises a low-orbit satellite constellation and a static satellite constellation, receives uplink satellite signals sent by the space-based communication network system, the sea-based communication network system and the ground fixed station, and forwards the uplink satellite signals in a downlink manner;
the air-based communication network system comprises an unmanned aerial vehicle group, an airborne microwave communication device and an airborne satellite communication device, wherein the unmanned aerial vehicle group carries the airborne microwave communication device and the airborne satellite communication device, bidirectional image and voice communication is carried out between the airborne microwave communication device and an unmanned aerial vehicle near-field node inside the air-based communication network system and between the airborne microwave communication device and a naval vessel node inside the sea-based communication network system, and the airborne satellite communication device comprises a satellite modem and a satellite receiving and transmitting antenna and is in far-field bidirectional communication with a satellite.
The sea-based communication network system comprises a sea-based rescue platform and an ocean observation network platform, wherein the sea-based rescue platform carries ship-mounted microwave communication equipment and ship-mounted satellite communication equipment, and consists of a specific sea rescue ship and a common sea navigation ship, the ship-mounted microwave communication equipment comprises a video encoding and decoding module, a voice module, a network module, a microwave modulation and demodulation module and a receiving and transmitting antenna, and carries out two-way image and voice communication with a ship near-field node inside the sea-based rescue platform and an unmanned aerial vehicle node of the air-based communication network system, the ship-mounted satellite communication equipment is used for carrying out two-way communication with a satellite, and the ocean observation network platform consists of an ocean observation sensor and comprises a signal receiver and a signal diffuser; the signal receiver and the signal diverger are sequentially connected in series; the signal receiver comprises a receiving network signal module, a divergent network signal module, a signal conversion module, a signal processing module, a signal modulation module and a signal power amplification module which are sequentially connected in series;
the ground fixed station carries ground satellite communication equipment, directly carries out two-way communication with a satellite, uploads and receives satellite data and measures and controls the working state of the satellite;
the ground network management control center is used for uniformly managing data information of the space-based communication network system, the space-based communication network system and the sea-based communication network system, which is transmitted to the ground fixed station, and transmitting the data to the background command center, and meanwhile, the ground network management control center is also used for verifying and accessing the space-based communication network system, the space-based communication network system and the sea-based communication network system.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the invention provides a maritime emergency network communication system, which integrates a space-based network, an air-based network, a sea-based network and a ground network to form an air-to-air communication, air-to-sea communication and air-to-ground communication maritime emergency communication network system. The maritime emergency communication network system can support communication requirements of maritime emergency rescue and real-time emergency command communication requirements of a ground command center, not only expands the coverage range of the maritime emergency communication network, but also effectively utilizes space-based network resources.
Drawings
Fig. 1 is a schematic structural diagram of an emergency network communication system at sea according to an embodiment of the present invention;
wherein: the system comprises a space-based communication network system 1, a ground fixed station 2, a space-based communication network system 3, a ground network management control center 4 and a sea-based communication network system 5;
FIG. 2 is a schematic diagram of the components of a shipborne airborne microwave communication device according to an embodiment of the present invention;
wherein: the system comprises shipborne airborne microwave communication equipment 6, a voice module 7, a video coding and decoding module 8, a receiving and transmitting antenna 9, a network module 10 and a microwave modulation and demodulation module 11;
FIG. 3 is a schematic diagram of the components of a shipborne airborne satellite communication device according to an embodiment of the present invention;
wherein: a shipborne/onboard satellite communication device 12, a satellite transceiving antenna 13 and a satellite modem 14;
FIG. 4 is an overall schematic view of an ocean network platform according to an embodiment of the present invention;
wherein: the system comprises a signal receiver 15, a receiving network signal module 16, a signal conversion module 17, a signal processing module 18, a signal modulation module 19, a signal power amplification module 20, a divergence network signal module 21 and a signal diverger 22;
FIG. 5 is a schematic flow chart of a signal processing module of a marine observation network platform signal receiver according to an embodiment of the present invention;
wherein: the system comprises a receiving unit 23, a filtering unit 24, an analyzing unit 25, a detecting unit 26, an excitation signal unit 27, a sea-based rescue platform 28 and an ocean network platform 29.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
A maritime emergency network communication system, as shown in fig. 1, comprising: the system comprises a space-based communication network system 1, a space-based communication network system 3, a sea-based communication network system 5, a ground fixed station 2 and a ground network management control center 4.
The space-based communication network system 1 includes: and the low-earth orbit satellite constellation and the geostationary satellite constellation are used for receiving uplink satellite signals sent by the space-based communication network system 3, the sea-based communication network system 5 and the ground fixed station 2 and carrying out downlink forwarding. The air-based communication network system 3 is composed of an unmanned aerial vehicle cluster, the unmanned aerial vehicle carries an airborne microwave communication device 6 and an airborne satellite communication device 12, the airborne microwave communication device 6 is used for carrying out two-way image and voice communication with an unmanned aerial vehicle near-field node inside the air-based communication network system 3 and a naval vessel node inside the sea-based communication network system 5, and the airborne satellite communication device 12 is used for carrying out far-field two-way communication with a satellite. The sea-based communication network system 5 includes: the sea-based rescue platform 28 comprises a specific rescue vessel at sea or a common navigation vessel at sea, and carries a ship-borne microwave communication device 6 and a ship-borne satellite communication device 12, wherein the ship-borne microwave communication device 6 is used for carrying out two-way image and voice communication with a ship near field node inside the sea-based rescue platform 28 and an unmanned aerial vehicle node of an air-based communication network system 3, the ship-borne satellite communication device 12 is used for carrying out two-way communication with a satellite, the sea network platform 29 comprises a conventionally deployed marine observation sensor, the ground fixed station carries a ground satellite communication device which is used for monitoring real-time data of the marine environment after a marine ecological accident, directly carries out two-way communication with the satellite, and is responsible for uploading, receiving satellite data and measuring and controlling the working state of the satellite; the ocean network platform 29, as shown in fig. 4, includes: signal receiver 15, signal diverger 22. The signal receiver 15 is in series with the signal diverger 22. Wherein, the signal receiver 15 includes: the device comprises a receiving network signal module 16, a divergence network signal module 21, a signal conversion module 17, a signal processing module 18, a signal modulation module 19 and a signal power amplification module 20. A signal conversion module 17, a signal processing module 18, a signal modulation module 19 and a signal power amplification module 20 are sequentially connected in series between the receiving network signal module 16 and the diverging network signal module 21. The receiving network signal module 16 in the signal receiver 15 receives the network signal to be converted and transmits the signal to the signal conversion module 17. The signal conversion module 17 receives the network signal transmitted by the signal reception module and converts the network signal into an electrical signal. The signal processing module 18 receives, analyzes and detects the electrical signal, receives the incoming signal transmitted by the signal conversion module, analyzes information such as frequency and waveform of the electrical signal, detects whether the electrical signal meets the strength required by the current network application scene, and feeds back the detection result to the excitation signal source, and the flow chart is shown in fig. 5. The excitation signal source works according to the detection result, and if the signal intensity does not meet the intensity of the network application scene, the excitation signal source generates an electric signal which has the same information as the waveform, the frequency and the like in the electric signal but has higher signal intensity, and transmits the electric signal to the signal modulation module 19. The signal modulation module 19 generates an electromagnetic carrier, loads the electrical signal onto the electromagnetic carrier, generates a network signal, and transmits the network signal to the signal power amplification module 20. After receiving the network signal, the signal power amplifying module 20 amplifies the power of the network signal and transmits the amplified signal to the divergent network signal module 21. The divergent network signal module 21 receives the network signal transmitted by the signal power amplifying module 20 and transmits it to the signal diverger 22, and the signal diverger 22 diverges the network signal for the terminal to use. The ground network management control center 4 is used for uniformly managing data information transmitted to the ground fixed station 2 by the space-based communication network system 1, the space-based communication network system 3 and the sea-based communication network system 5 and transmitting the data to the background command center, and meanwhile, the ground network management control center 4 is also responsible for verification and access of the space-based, space-based and sea-based communication network systems.
As shown in fig. 2, the onboard microwave communication device 6 includes: the system comprises a video coding and decoding module 8, a voice module 7, a network module 10, a microwave modulation and demodulation module 11 and a receiving and transmitting antenna 9. The onboard shipborne satellite communication equipment 12 comprises: when a marine emergency occurs, according to a command of a background command center, rapidly planning a plurality of unmanned aerial vehicles carrying the onboard microwave communication 6 and the onboard satellite communication equipment 12 to construct the air-based communication network system 3 above a marine accident site, wherein the onboard satellite communication equipment 12 is shown in fig. 3; and deploying rescue vessels around the marine accident site, carrying microwave communication equipment 6 and shipborne airborne satellite communication equipment 12 on the rescue vessels to form a marine communication network, and expanding and connecting a conventionally deployed marine observation sensor network according to the requirement to construct a sea-based communication network system. Then, an air-to-air communication, air-to-sea communication, space-to-sea communication and air-to-ground communication marine emergency network communication system is formed through the space-to-ground communication network system 1, the air-to-air communication network system 3, the sea-to-sea communication network system 5, the ground fixed station 2 and the ground network management control center 4.
The receiving network signal module 16 receives the network signal to be converted.
The signal processing module 18: comprises a receiving unit 23, a filtering unit 24, an analyzing unit 25, a detecting unit 26 and an excitation signal unit 27. The receiving unit 23 is used for receiving the electrical signal transmitted by the signal conversion module 17. The filter unit 24 is used for performing noise cancellation on the electrical signal, and the analysis unit 25 is used for analyzing information such as a waveform and a frequency of the electrical signal. The detecting unit 26 is used for detecting whether the intensity of the electrical signal meets the intensity required by the current network application scene, and feeding back the detection result to the excitation signal unit 27, the excitation signal unit 27 works according to the result of the detecting unit, and if the signal intensity does not meet the intensity requirement of the current network application scene, the electrical signal which is identical to the information of the electrical signal in frequency, waveform and the like and has higher signal intensity is output, so that the intensity requirement of the current network application scene is met, and the electrical signal is transmitted to the signal modulation module.
The signal modulation module 19 is divided into N modulation units, and the modulation units generate electromagnetic carriers, load the electrical signals onto the electromagnetic carriers, and regenerate network signals.
The signal power amplifying module 20 is connected in series between the signal modulating module and the divergent signal module, and the network signal is power amplified by the signal power amplifying module and then transmitted to the divergent network signal module.
The divergent network signal module 21 receives the network signal after power amplification and transmits it to the signal diverger 22, and the signal diverger 22 diverges the network signal for the terminal to use.
In the embodiment, the model of the signal receiver is TDX-328X, the model of the signal diverger is HK-8921, in the embodiment, when a marine emergency occurs, according to a command of a background command center, a plurality of unmanned aerial vehicles carrying airborne microwave communication equipment and airborne satellite communication equipment are rapidly planned to form an air-based communication network system above a marine accident site, rescue vessels are deployed around the marine accident site, the rescue vessels carry the microwave communication equipment and the satellite communication equipment to form a marine communication network, and a conventionally deployed marine observation sensor network is expanded and connected according to requirements to form the air-based communication network system. And then, an air-sea communication system, an air-sea communication system and an air-ground emergency network communication system which are seamlessly combined with the air-sea communication system are formed through the air-base communication network system, the sea-base communication network system, the ground fixed station and the ground network management control center to rescue the sea.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (2)
1. A marine emergency network communication system is characterized in that: the system comprises a space-based communication network system, a sea-based communication network system, a ground fixed station and a ground network management control center;
the space-based communication network system comprises a low-orbit satellite constellation and a static satellite constellation, receives uplink satellite signals sent by the space-based communication network system, the sea-based communication network system and the ground fixed station, and forwards the uplink satellite signals in a downlink manner;
the air-based communication network system comprises an unmanned aerial vehicle group, an airborne microwave communication device and an airborne satellite communication device, wherein the unmanned aerial vehicle group carries the airborne microwave communication device and the airborne satellite communication device, bidirectional image and voice communication is carried out between the airborne microwave communication device and an unmanned aerial vehicle near-field node in the air-based communication network system and between the airborne microwave communication device and a naval vessel node in the sea-based communication network system, and the airborne satellite communication device comprises a satellite modem and a satellite receiving and transmitting antenna and is in far-field bidirectional communication with a satellite;
the sea-based communication network system comprises a sea-based rescue platform and an ocean observation network platform, wherein the sea-based rescue platform carries ship-mounted microwave communication equipment and ship-mounted satellite communication equipment, and consists of a specific sea rescue ship and a common sea navigation ship, the ship-mounted microwave communication equipment comprises a video encoding and decoding module, a voice module, a network module, a microwave modulation and demodulation module and a receiving and transmitting antenna, and carries out two-way image and voice communication with a ship near-field node inside the sea-based rescue platform and an unmanned aerial vehicle node of the air-based communication network system, the ship-mounted satellite communication equipment is used for carrying out two-way communication with a satellite, and the ocean observation network platform consists of an ocean observation sensor and comprises a signal receiver and a signal diffuser; the signal receiver and the signal diverger are sequentially connected in series;
the ground fixed station carries ground satellite communication equipment, directly carries out two-way communication with a satellite, uploads and receives satellite data and measures and controls the working state of the satellite;
the ground network management control center is used for uniformly managing data information of the space-based communication network system, the space-based communication network system and the sea-based communication network system, which is transmitted to the ground fixed station, and transmitting the data to the background command center, and meanwhile, the ground network management control center is also used for verifying and accessing the space-based communication network system, the space-based communication network system and the sea-based communication network system.
2. The offshore emergency network communication system of claim 1, wherein the signal receiver comprises a receiving network signal module, a diverging network signal module, a signal conversion module, a signal processing module, a signal modulation module, and a signal power amplification module, which are connected in series.
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| CN202010735419.7A CN111901789A (en) | 2020-07-28 | 2020-07-28 | Maritime emergency network communication system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114143915A (en) * | 2021-10-20 | 2022-03-04 | 深圳航天智慧城市系统技术研究院有限公司 | Sky-sea integrated communication system based on broadband satellite and implementation method |
| CN116915316A (en) * | 2023-08-25 | 2023-10-20 | 哈尔滨工程大学 | Marine mobile network wide area coverage system based on unmanned aerial vehicle communication |
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| CN108736957A (en) * | 2018-04-17 | 2018-11-02 | 浙江大学 | A kind of day-Air-Ground sea emergency network communication system |
| CN109327243A (en) * | 2018-12-06 | 2019-02-12 | 辽宁工程技术大学 | A kind of elevator shaft sealing space network enhancing system and method |
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2020
- 2020-07-28 CN CN202010735419.7A patent/CN111901789A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736957A (en) * | 2018-04-17 | 2018-11-02 | 浙江大学 | A kind of day-Air-Ground sea emergency network communication system |
| CN109327243A (en) * | 2018-12-06 | 2019-02-12 | 辽宁工程技术大学 | A kind of elevator shaft sealing space network enhancing system and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114143915A (en) * | 2021-10-20 | 2022-03-04 | 深圳航天智慧城市系统技术研究院有限公司 | Sky-sea integrated communication system based on broadband satellite and implementation method |
| CN116915316A (en) * | 2023-08-25 | 2023-10-20 | 哈尔滨工程大学 | Marine mobile network wide area coverage system based on unmanned aerial vehicle communication |
| CN116915316B (en) * | 2023-08-25 | 2024-05-31 | 哈尔滨工程大学 | Marine mobile network wide area coverage system based on unmanned aerial vehicle communication |
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