CN115882933B - Control plane and data plane separated unmanned aerial vehicle satellite communication system - Google Patents
Control plane and data plane separated unmanned aerial vehicle satellite communication system Download PDFInfo
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Abstract
The invention provides a control plane and data plane separated unmanned aerial vehicle satellite communication system, which comprises an airborne satellite communication system, a satellite link ground station, an unmanned aerial vehicle ground measurement and control network system and an unmanned aerial vehicle ground data network system; the airborne satellite communication system is connected with a satellite link ground station through a communication satellite to form an unmanned aerial vehicle satellite communication control plane and a data plane link, and is used for isolating and transmitting unmanned aerial vehicle control plane information and data plane information; the satellite link ground station is respectively connected with the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system and is used for respectively and correspondingly sending the unmanned aerial vehicle control plane information and the data plane information into the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system. According to the invention, the unmanned plane beyond-view control plane and the data plane are separated, so that the integration capability of unmanned plane control equipment and load equipment is improved, the response time is reduced, and various task scenes are responded quickly under the condition that the unmanned plane beyond-view control network is not disturbed.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle satellite communication systems, in particular to a control plane and data plane separated unmanned aerial vehicle satellite communication system.
Background
Satellite communication is an important result of combining the aerospace technology and the modern communication technology, has the characteristics of wide coverage area, no excessive dependence on external environment, rapid deployment, strong operability and the like, has wide application in the fields of military, emergency, broadcast television, mobile communication, internet access and the like, and plays an important role in command and dispatch, emergency communication guarantee, information reporting, data acquisition and the like in various applications.
The large unmanned aerial vehicle has a long range, strong power supply capacity, large installation space and carrying capacity, and the satellite communication system is an optimal means for the unmanned aerial vehicle to complete beyond-the-horizon tasks; satellite communication has become a key link in beyond-the-horizon measurement and control and information transmission of unmanned aerial vehicles, the unmanned aerial vehicle combines measurement and control information on a platform with various application data, and ground space measurement and control information transmission and application data sharing are realized through beyond-the-horizon links.
The conventional unmanned aerial vehicle measurement and control system in China adopts a custom data composite transmission mode and a point-to-point transmission architecture, the measurement and control data and user application data are coupled in a complex manner, a chimney-shaped situation is presented, the support for related standards (including commercial standards such as IP protocol) and the architecture is poor, the system cannot be quickly integrated into commercial high-orbit and low-orbit space-based networks taking the IP protocol as a transmission layer standard, and the degree of interconnection and interoperability is low. With the increasing requirements of unmanned aerial vehicle measurement and control and application on networking, intellectualization, clustering, task quick reconstruction and the like, the requirements of networking and various user data forwarding requirements caused by current and future complex and changeable tasks are difficult to meet.
Disclosure of Invention
The invention aims to provide a control plane and data plane separated unmanned aerial vehicle satellite communication system so as to solve the problems, and separate and decouple the unmanned aerial vehicle beyond-the-horizon measurement and control data and user application data; the unmanned aerial vehicle satellite communication channel which is responsible for transmitting and processing the user application data stream work is defined as a data plane, and the unmanned aerial vehicle satellite communication channel which is responsible for transmitting and processing the unmanned aerial vehicle system measurement and control signaling is defined as a control plane; the data surface is just like the wharf workman who is responsible for the transport, and the control surface just is equivalent to the commander, and when two aspect couplings were not separated, oneself had both been responsible for the transport and had responsible for the commander, and the coupling degree is high, is unfavorable for the batch processing of goods, divides the worker independent back, and efficiency can double promotion.
The invention provides a control plane and data plane separated unmanned aerial vehicle satellite communication system, which comprises an airborne satellite communication system, a satellite link ground station, an unmanned aerial vehicle ground measurement and control network system and an unmanned aerial vehicle ground data network system; the airborne satellite communication system is connected with a satellite link ground station through a communication satellite to form an unmanned aerial vehicle satellite communication control plane and a data plane link, and is used for isolating and transmitting unmanned aerial vehicle control plane information and data plane information; the satellite link ground station is respectively connected with the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system and is used for respectively and correspondingly sending the unmanned aerial vehicle control plane information and the data plane information into the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system.
Further, the airborne satellite communication system comprises an airborne satellite antenna subsystem, an airborne satellite resource management and control unit subsystem and an airborne satellite modem unit subsystem which are connected with each other, and an airborne power supply unit subsystem which is connected with the airborne satellite antenna subsystem, the airborne satellite resource management and control unit subsystem and the airborne satellite modem unit subsystem.
Further, the onboard satellite antenna subsystem comprises an antenna control unit, a low noise amplifier, a duplexer, a power amplification unit and a high gain antenna, wherein the low noise amplifier, the duplexer, the power amplification unit and the high gain antenna are connected with the antenna control unit; wherein:
the power amplification unit is connected with a high-gain antenna through a duplexer to form a transmitting channel;
the high-gain antenna is connected with the low-noise amplifier through the duplexer to form a receiving channel.
Further, the high gain antenna is one or more of a parabolic antenna, a segmented array antenna and a phased array antenna.
Further, the onboard satellite resource management and control unit subsystem comprises an onboard interface board card, an onboard management and control board card and an onboard exchange board card;
the airborne interface board card is used for completing isolation and forwarding of control plane information among an airborne flight control system, an airborne task system and an airborne measurement and control system and data plane information of the airborne task system;
the onboard control board card is used for completing control and information interaction with the onboard satellite antenna subsystem, and deploying a data plane information transmission strategy issued by the control plane to a data plane transmission channel of the onboard satellite modem unit subsystem;
the onboard exchange board card is used for sending the control plane and service plane data to the onboard satellite modem unit subsystem.
Further, the onboard satellite modem unit subsystem comprises a monitoring and data processing board card and a signal processing board card;
the monitoring and data processing board card is used for realizing the monitoring and control functions of the working states and parameters of each board card of the subsystem of the airborne satellite modem unit, and the framing and distributing functions of control plane information and data plane information;
the signal processing board card is provided with more than two paths of forward/backward channel processing modules for completing control plane and data forward channel signal capturing, tracking and decoding and backward channel data encoding and modulating.
Further, the satellite link ground station is configured with a large-caliber antenna and a plurality of modems.
Furthermore, the unmanned aerial vehicle ground measurement and control network system is connected with the satellite link ground station through the ground special network system and is used for completing measurement and control, networking control and task system data forwarding control of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or unmanned aerial vehicle clusters according to the transmitted control plane information.
Furthermore, the unmanned aerial vehicle ground data network is connected with the satellite link ground station through a ground special network system and is used for completing application data transmission of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or unmanned aerial vehicle clusters according to the transmitted data plane information.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the control surface is separated from the data surface, unmanned aerial vehicle application information is decoupled and isolated from unmanned aerial vehicle control information, and the integration capacity of unmanned aerial vehicle control equipment and load equipment can be improved by adopting a distributed or centralized deployment scheme under the condition that an unmanned aerial vehicle beyond-vision control network is not disturbed, so that the response time is reduced, and various task scenes are responded quickly.
2. And two sections of independent satellite channel resources bear the isolated transmission of the control surface and the data surface channels of the unmanned aerial vehicle, and the beyond-the-horizon anti-interference capability of the unmanned aerial vehicle is improved. After a large amount of application data is stripped, the control surface channel of the unmanned aerial vehicle can realize hidden communication in a high-power spread spectrum mode, so that the anti-investigation and anti-interception capacity of the control surface channel is greatly improved; the data plane channel frequency resource is interfered, so that the control of the unmanned aerial vehicle is not influenced; when the data plane channel frequency resource is interfered, the control plane can issue the re-planned data plane channel frequency resource to realize the avoidance of the data plane channel interference.
3. The unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system are adopted to form a double-network structure, the unmanned aerial vehicle control surface and the data surface use standard space link protocol to package IP data packets, the space is realized by taking an IP layer as a basis for interconnection and intercommunication, and the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system realize single unmanned aerial vehicle measurement and control, application data distribution, interconnection and intercommunication among a plurality of unmanned aerial vehicles and even among unmanned aerial vehicle clusters through continuous deployment of various types of services.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a control plane and data plane separated unmanned aerial vehicle satellite communication system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an on-board satellite communication system according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, the embodiment provides a control plane and data plane separated unmanned aerial vehicle satellite communication system, which comprises an airborne satellite communication system, a satellite link ground station, an unmanned aerial vehicle ground measurement and control network system and an unmanned aerial vehicle ground data network system; the airborne satellite communication system is connected with a satellite link ground station through a communication satellite (or a relay satellite) to form an unmanned aerial vehicle satellite communication control plane and a data plane link, and is used for isolating and transmitting unmanned aerial vehicle control plane information and data plane information; the satellite link ground station is respectively connected with the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system and is used for respectively and correspondingly sending the unmanned aerial vehicle control plane information and the data plane information into the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system.
Specifically:
(1) Onboard satellite communication system
As shown in fig. 2, the on-board satellite communication system includes an on-board satellite antenna subsystem, an on-board satellite resource management and control unit subsystem and an on-board satellite modem unit subsystem which are connected with each other, and an on-board power supply unit subsystem connected with the on-board satellite antenna subsystem, the on-board satellite resource management and control unit subsystem and the on-board satellite modem unit subsystem.
The onboard satellite antenna subsystem is used for providing the radiation capability and polarization adjustment capability of satellite dynamic tracking and radio frequency signal receiving and transmitting of the satellite communication system corresponding to the working frequency band. The onboard satellite antenna subsystem comprises an Antenna Control Unit (ACU), a Low Noise Amplifier (LNA), a Duplexer (DIPLEXER), a power amplification unit (BUC) and a High Gain Antenna (HGA); the power amplification unit is connected with the high-gain antenna through the low-noise amplifier and the duplexer respectively, wherein the power amplification unit is connected with the high-gain antenna through the duplexer to form a transmitting channel; the high-gain antenna is connected with the low-noise amplifier through the duplexer to form a receiving channel. The antenna control unit is used for controlling a transmission mechanism in the airborne satellite antenna subsystem, completing the functions of aligning communication satellites and continuously tracking, and managing the whole airborne satellite antenna subsystem; the power amplification unit is used for converting a baseband signal into a working frequency band of the control plane and data plane separated unmanned aerial vehicle satellite communication system, and filtering, driving and amplifying the working frequency band to obtain a transmitting signal; the duplexer is used for coupling a transmitting signal from the power amplification unit to the high-gain antenna and simultaneously coupling a receiving signal of the high-gain antenna to the low-noise amplifier; the low noise amplifier/diplexer is used for filtering the transmitting signal and filtering the receiving signal before amplifying; the high gain antenna is used for transmitting and receiving space radio frequency signals, and can be in various antenna forms such as a parabolic antenna, a segmented array antenna, a phased array antenna and the like.
The onboard satellite resource management and control unit subsystem is used for providing a control plane information and data plane information separation function and a satellite resource management and control function of the unmanned aerial vehicle onboard satellite communication system. The onboard satellite resource management and control unit subsystem comprises an onboard interface board card, an onboard management and control board card and an onboard exchange board card; the onboard interface board card consists of a network exchange interface and a network exchange chip and is used for completing isolation and forwarding of control plane information among an onboard flight control system, an onboard task system and an onboard measurement and control system and data plane information of the onboard task system; the onboard control board card comprises an onboard embedded processor chip and is used for completing control and information interaction with an onboard satellite antenna subsystem, and deploying a data plane information transmission strategy issued by a control plane to a data plane transmission channel of an onboard satellite modem unit subsystem; the onboard exchange board card consists of a high-speed bus interface chip and is used for sending control plane and service plane data to an onboard satellite modem unit subsystem.
The onboard satellite modem unit subsystem comprises a monitoring and data processing board card and a signal processing board card; the monitoring and data processing board card is used for realizing the monitoring and control functions of the working states and parameters of each board card of the subsystem of the airborne satellite modem unit, and the framing and distributing functions of control plane information and data plane information; the signal processing board card is provided with more than two paths of forward/backward channel processing modules, and is used for completing the functions of capturing, tracking, decoding and the like of control plane and data forward channel signals, and the functions of encoding and modulating backward channel data.
The onboard power supply unit subsystem is used for converting a direct current power supply provided by the platform into working voltages required by all subsystems (an onboard satellite antenna subsystem, an onboard satellite resource management and control unit subsystem and an onboard satellite modulation and demodulation unit subsystem) in the onboard satellite communication system, meets the relevant requirements of the onboard power supply, and simultaneously completes electromagnetic compatibility filtering and isolation of the power supply.
(2) Satellite link ground station
The satellite link ground station is provided with a large-caliber antenna and a plurality of modems, is matched with an airborne satellite communication system, forms an unmanned aerial vehicle satellite communication link through a communication satellite (or a relay satellite) so as to isolate and transmit unmanned aerial vehicle control plane information and data plane information, and respectively and correspondingly transmits the control plane information and the data plane information into an unmanned aerial vehicle ground measurement and control network system and an unmanned aerial vehicle ground data network system in a ground optical cable/network cable mode.
(3) Unmanned aerial vehicle ground measurement and control network system
The unmanned aerial vehicle ground measurement and control network system is connected with the satellite link ground station through the ground special network system and is used for completing measurement and control, networking control and task system data forwarding control of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or unmanned aerial vehicle clusters according to the transmitted control plane information. The unmanned aerial vehicle ground measurement and control network system focuses on providing interoperability of the unmanned aerial vehicle measurement and control system and an unmanned aerial vehicle control interactive operation standardized interface.
(4) Unmanned aerial vehicle ground data network system
The unmanned aerial vehicle ground data network system is connected with the satellite link ground station through a ground special network system and is used for completing application data transmission of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or unmanned aerial vehicle clusters according to the transmitted data surface information. The unmanned aerial vehicle ground data network system focuses on providing interoperability of unmanned aerial vehicle application systems and unmanned aerial vehicle application interactivity operation standardized interfaces.
In addition, seats such as user ground beyond-view-range control and application can be accessed into the two logic subnets (the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system) according to actual requirements to acquire corresponding data information.
The working mode of the control plane and data plane separated unmanned aerial vehicle satellite communication system is as follows:
s1, an airborne satellite resource management subsystem and an antenna control unit of an airborne satellite antenna subsystem are communicated by adopting an open antenna-to-modem interface protocol (OpenAMIP) in an ARINC 791 standard, and an airborne satellite antenna ACU control software is configured to track, pair satellites, capture beams and finally lock communication satellites;
s2, the airborne satellite resource management subsystem transmits frequency resource information of a control plane and a data plane which are coordinated with the satellite link ground station in advance, and waveform parameter information of the control plane and the data plane to the airborne satellite modulation and demodulation unit subsystem;
s3, the onboard satellite modem unit subsystem completes a bidirectional satellite communication link with a satellite link ground station to establish a control surface and a data surface through an integrated monitoring and data processing board and a signal processing board (comprising a channel 1 and a channel 2), and performs data transmission: the control plane completes the transmission of the beyond-the-horizon measurement and control information of the unmanned aerial vehicle, and the data plane completes the forwarding of relevant application data carried by the unmanned aerial vehicle;
s4, the onboard satellite resource management subsystem receives telemetry information issued by an unmanned aerial vehicle onboard flight control system, an onboard task system and an onboard measurement and control system through an onboard interface board with functions of integrated network management, route exchange and the like, and sends the telemetry information to a control surface channel of an onboard satellite modem unit subsystem through a control surface interface; various application data issued by the airborne task system are sent to a data surface channel of an airborne satellite modem unit subsystem through a data surface interface; and sending the data plane information transmission strategy issued by the control plane to an onboard satellite modem unit subsystem to finish issuing control plane information and data plane information and issuing forwarding rules.
S5, receiving uplink control plane information through a control plane channel of an onboard satellite modulation and demodulation unit subsystem, and sending the uplink control plane information to an onboard flight control system, an onboard task system and an onboard measurement and control system of the unmanned aerial vehicle; and receiving uplink data plane information through a data plane channel of the subsystem of the onboard satellite modem unit, and forwarding according to forwarding rules.
S6, the subsystem of the onboard satellite modulation and demodulation unit receives and updates the forwarding rule of the information of the data surface issued by the subsystem of the onboard satellite resource management and control unit through the bus interface of the monitoring and data processing board; receiving control plane information and data plane information sent by an onboard satellite resource management and control unit subsystem, respectively sending the control plane information and the data plane information to a signal processing channel corresponding to a signal processing board for framing, coding, modulating and encrypting, converting the control plane information and the data plane information into two paths of intermediate frequency signals, sending the two paths of intermediate frequency signals to a power amplification unit for up-conversion and power amplification, converting the intermediate frequency signals into two paths of satellite return radio frequency signals, and transmitting the two paths of satellite return radio frequency signals to the locked satellite through a high-gain antenna; the high-gain antenna receives two paths of forward satellite radio frequency signals, sends the signals to the built-in down-conversion module of the high-gain antenna, converts the satellite radio frequency signals into two paths of intermediate frequency signals after low-noise amplification and down-conversion, sends the two paths of intermediate frequency signals to the signal processing board card integrated by the subsystem of the onboard satellite modulation and demodulation unit to perform processing recovery such as decoding, demodulation and decryption of control plane information and data plane information, and sends the signals to the onboard satellite resource management and control unit through the bus interface of the monitoring and data processing board card.
In order to meet the requirements of unmanned aerial vehicle measurement and control and application on networking, intellectualization, clustering, task quick reconstruction and the like, the unmanned aerial vehicle network deployment and operation are more flexible by adopting a distributed or centralized deployment scheme and the expansion of functions of a relatively independent control plane and a data plane, and meanwhile, the operation of the existing network is not influenced. Decoupling and separating design is carried out on the measurement and control information and the service information of the existing unmanned aerial vehicle, control plane and data plane channels are designed, networking design is carried out on the point-to-point transmission mode of the existing unmanned aerial vehicle, and forwarding is carried out according to a control plane strategy. It can be seen that the control plane and data plane separated unmanned aerial vehicle satellite communication system has the following advantages:
1. the control surface is separated from the data surface, unmanned aerial vehicle application information is decoupled and isolated from unmanned aerial vehicle control information, and the integration capacity of unmanned aerial vehicle control equipment and load equipment can be improved by adopting a distributed or centralized deployment scheme under the condition that an unmanned aerial vehicle beyond-vision control network is not disturbed, so that the response time is reduced, and various task scenes are responded quickly.
2. And two sections of independent satellite channel resources bear the isolated transmission of the control surface and the data surface channels of the unmanned aerial vehicle, and the beyond-the-horizon anti-interference capability of the unmanned aerial vehicle is improved. After a large amount of application data is stripped, the control surface channel of the unmanned aerial vehicle can realize hidden communication in a high-power spread spectrum mode, so that the anti-investigation and anti-interception capacity of the control surface channel is greatly improved; the data plane channel frequency resource is interfered, so that the control of the unmanned aerial vehicle is not influenced; when the data plane channel frequency resource is interfered, the control plane can issue the re-planned data plane channel frequency resource to realize the avoidance of the data plane channel interference.
3. The unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system are adopted to form a double-network structure, the unmanned aerial vehicle control surface and the data surface use standard space link protocol to package IP data packets, the space is realized by taking an IP layer as a basis for interconnection and intercommunication, and the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system realize single unmanned aerial vehicle measurement and control, application data distribution, interconnection and intercommunication among a plurality of unmanned aerial vehicles and even among unmanned aerial vehicle clusters through continuous deployment of various types of services.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The unmanned aerial vehicle satellite communication system with separated control surface and data surface is characterized by comprising an airborne satellite communication system, a satellite link ground station, an unmanned aerial vehicle ground measurement and control network system and an unmanned aerial vehicle ground data network system; the airborne satellite communication system is connected with a satellite link ground station through a communication satellite to form an unmanned aerial vehicle satellite communication control plane and a data plane link, and is used for isolating and transmitting unmanned aerial vehicle control plane information and data plane information; the satellite link ground station is respectively connected with the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system and is used for respectively and correspondingly transmitting unmanned aerial vehicle control plane information and data plane information into the unmanned aerial vehicle ground measurement and control network system and the unmanned aerial vehicle ground data network system;
the airborne satellite communication system comprises an airborne satellite antenna subsystem, an airborne satellite resource management and control unit subsystem and an airborne satellite modem unit subsystem which are connected with each other, and an airborne power supply unit subsystem which is connected with the airborne satellite antenna subsystem, the airborne satellite resource management and control unit subsystem and the airborne satellite modem unit subsystem; the airborne satellite antenna subsystem comprises an antenna control unit, a low noise amplifier, a duplexer, a power amplification unit and a high gain antenna, wherein the low noise amplifier, the duplexer, the power amplification unit and the high gain antenna are connected with the antenna control unit; wherein:
the power amplification unit is connected with a high-gain antenna through a duplexer to form a transmitting channel;
the high-gain antenna is connected with the low-noise amplifier through the duplexer to form a receiving channel;
the onboard satellite resource management and control unit subsystem comprises an onboard interface board card, an onboard management and control board card and an onboard exchange board card;
the airborne interface board card is used for completing isolation and forwarding of control plane information among an airborne flight control system, an airborne task system and an airborne measurement and control system and data plane information of the airborne task system;
the onboard control board card is used for completing control and information interaction with the onboard satellite antenna subsystem, and deploying a data plane information transmission strategy issued by the control plane to a data plane transmission channel of the onboard satellite modem unit subsystem;
the onboard exchange board card is used for sending control plane and service plane data to an onboard satellite modem unit subsystem;
the onboard satellite modem unit subsystem comprises a monitoring and data processing board card and a signal processing board card;
the monitoring and data processing board card is used for realizing the monitoring and control functions of the working states and parameters of each board card of the subsystem of the airborne satellite modem unit, and the framing and distributing functions of control plane information and data plane information;
the signal processing board card is provided with more than two paths of forward/backward channel processing modules which are used for completing the capturing, tracking and decoding of control plane and data forward channel signals and the encoding and modulation of backward channel data;
the working mode of the control plane and data plane separated unmanned aerial vehicle satellite communication system is as follows:
s1, an airborne satellite resource management subsystem and an antenna control unit of an airborne satellite antenna subsystem are communicated by adopting an open antenna-to-modem interface protocol OpenAMIP in an ARINC 791 standard, and an airborne satellite antenna ACU control software is configured to track and pair satellites, capture beams and finally lock communication satellites;
s2, the airborne satellite resource management subsystem transmits frequency resource information of a control plane and a data plane which are coordinated with the satellite link ground station in advance, and waveform parameter information of the control plane and the data plane to the airborne satellite modulation and demodulation unit subsystem;
s3, the onboard satellite modem unit subsystem completes a bidirectional satellite communication link with a satellite link ground station to establish a control plane and a data plane through an integrated monitoring and data processing board card and a signal processing board card containing a channel 1 and a channel 2, and performs data transmission: the control plane completes the transmission of the beyond-the-horizon measurement and control information of the unmanned aerial vehicle, and the data plane completes the forwarding of relevant application data carried by the unmanned aerial vehicle;
s4, the airborne satellite resource management subsystem receives telemetry information issued by an unmanned aerial vehicle airborne flight control system, an airborne task system and an airborne measurement and control system through an airborne interface board card integrating network management and route exchange, and sends the telemetry information to a control surface channel of an airborne satellite modem unit subsystem through a control surface interface; various application data issued by the airborne task system are sent to a data surface channel of an airborne satellite modem unit subsystem through a data surface interface; transmitting the data plane information transmission strategy issued by the control plane to an onboard satellite modem unit subsystem to finish issuing control plane information and data plane information and issuing forwarding rules;
s5, receiving uplink control plane information through a control plane channel of an onboard satellite modulation and demodulation unit subsystem, and sending the uplink control plane information to an onboard flight control system, an onboard task system and an onboard measurement and control system of the unmanned aerial vehicle; receiving uplink data plane information through a data plane channel of an onboard satellite modem unit subsystem, and forwarding according to forwarding rules;
s6, the subsystem of the onboard satellite modulation and demodulation unit receives and updates the forwarding rule of the information of the data surface issued by the subsystem of the onboard satellite resource management and control unit through the bus interface of the monitoring and data processing board; receiving control plane information and data plane information sent by an onboard satellite resource management and control unit subsystem, respectively sending the control plane information and the data plane information to a signal processing channel corresponding to a signal processing board for framing, coding, modulating and encrypting, converting the control plane information and the data plane information into two paths of intermediate frequency signals, sending the two paths of intermediate frequency signals to a power amplification unit for up-conversion and power amplification, converting the intermediate frequency signals into two paths of satellite return radio frequency signals, and transmitting the two paths of satellite return radio frequency signals to the locked satellite through a high-gain antenna; the high-gain antenna receives two paths of forward satellite radio frequency signals, sends the signals to the built-in down-conversion module of the high-gain antenna, converts the satellite radio frequency signals into two paths of intermediate frequency signals after low-noise amplification and down-conversion, sends the two paths of intermediate frequency signals to the signal processing board card integrated by the subsystem of the onboard satellite modulation and demodulation unit to decode, demodulate and decrypt the control plane information and the data plane information, recovers the decoding, demodulation and decryption of the control plane information and the data plane information, and sends the signals to the onboard satellite resource management and control unit through the bus interface of the monitoring and data processing board card.
2. The control plane and data plane separated unmanned aerial vehicle satellite communication system of claim 1, wherein the high gain antenna is one or more of a parabolic antenna, a segmented array antenna, and a phased array antenna.
3. The control plane and data plane separated unmanned aerial vehicle satellite communication system of claim 1, wherein the satellite link ground station is configured with a large aperture antenna and a plurality of modems.
4. The control plane and data plane separated unmanned aerial vehicle satellite communication system according to claim 1, wherein the unmanned aerial vehicle ground measurement and control network system is connected with a satellite link ground station through a ground special network system and is used for completing measurement and control, networking control and task system data forwarding control of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or unmanned aerial vehicle clusters according to the transmitted control plane information.
5. The control plane and data plane separated unmanned aerial vehicle satellite communication system according to claim 1, wherein the unmanned aerial vehicle ground data network is connected with a satellite link ground station through a ground dedicated network system for completing application data transmission of a single unmanned aerial vehicle, a plurality of unmanned aerial vehicles and/or a unmanned aerial vehicle cluster according to the transmitted data plane information.
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Citations (2)
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