CN115765830A - Network-information fusion application-oriented satellite-borne general processing architecture - Google Patents
Network-information fusion application-oriented satellite-borne general processing architecture Download PDFInfo
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Abstract
The invention discloses a satellite-borne general processing architecture oriented to internet message fusion application, and belongs to the technical field of satellite effective loads. The architecture comprises a signal processing unit, a service switching unit, a control switching unit, a management switching unit, a routing service unit, a network control unit, a load control unit, an information processing unit, an information storage unit, a function expansion unit and the like, so that the functions of load control, signal processing, information processing, network control, routing switching and the like are realized, and the application requirement of network-to-satellite letter fusion of a user is met. The invention has the advantages of high reliability of the architecture, flexible function distribution, good expandability and the like, and is particularly suitable for a satellite communication system or an information acquisition satellite system supporting network and letter fusion application.
Description
Technical Field
The invention relates to a satellite-borne general processing architecture oriented to internet message fusion application, and belongs to the field of satellite effective loads.
Background
With the development of satellite effective load technology, communication network load only completes signal amplification and frequency switching from a bent pipe type transponder of a traditional communication satellite, and gradually develops to realize global networking communication capability based on-satellite processing and inter-satellite links; the remote sensing information processing load is issued to ground processing from information acquired by a traditional sensor through data transmission, and gradually develops into a use mode of directly distributing acquired information products to end users based on-board processing.
The traditional communication satellite and the remote sensing satellite are respectively constructed and developed from the aspects of management, technology, constellation construction and the like, and the communication network load and the remote sensing information processing load are independently designed and developed, so that the mode cannot meet the requirement of a user for quickly acquiring information in a global range. Typical systems planned and constructed at home and abroad, such as the American star chain system and the Chinese satellite Internet system, need to support the Internet letter fusion application. The star link system (Starlink) is a satellite constellation project proposed by the american SpaceX company, and aims to provide global high-speed broadband access, satellite-to-ground imaging services, remote sensing and other services by utilizing a large-scale low-earth satellite constellation. The satellite internet system is a communication satellite constellation proposed by China Star network company, realizes global communication coverage capability, and can provide space-based user data transmission, earth observation data processing and other capabilities based on the constellation. As can be seen from the introduction of the two systems, the communication network and the information processing convergence application become basic requirements, but from the point of view of publicly obtained information, the communication network load and the information processing load are independently designed and stacked, and the requirement of rapidly distributing information processing products by using a satellite communication network cannot be met.
Disclosure of Invention
The invention aims to overcome the defects in the background art and provide a satellite-borne general processing architecture for network and telecommunications fusion application. The invention has the advantages of supporting the communication networking, integrating the information processing and load control application capability, having high reliability of the architecture, flexible function distribution and the like, and is particularly suitable for a satellite communication system or an information acquisition satellite system supporting the network communication integration application.
The purpose of the invention is realized as follows:
a satellite-borne general processing architecture facing network and telecommunications convergence application comprises a signal processing unit 1, a service switching unit 2, a control switching unit 3, a management switching unit 4, a routing service unit 5, a network control unit 6, a load control unit 7, an information processing unit 8, an information storage unit 9 and a function extension unit 10;
the signal processing units 1 receive external microwave or laser signals, demodulate, decode and unframe the external microwave or laser signals to obtain link layer data frames, combine the link layer data frames with control response frames and send the control response frames to the service switching unit 2; the signal processing units 1 receive the link layer data frames sent by the service switching unit 2, classify and process the link layer data frames according to frame types, analyze and acquire working parameters of the signal processing units aiming at the control configuration frames, and perform framing, coding, modulation and sending of external microwave or laser signals aiming at the link layer data frames; the signal processing units 1 receive the management configuration frame sent by the management switching unit 4, analyze the management configuration frame to obtain the working parameters of the signal processing units, and send the management response frame to the management switching unit 4;
the service switching unit 2 searches a forwarding table for an internal communication data frame after data multiplexing processing of the internal communication data frame sent from the received information processing unit 8, the information storage unit 9 and the function expansion unit 10, the received control data frame inserted from the control switching unit 3 and the internal data frame processed by the plurality of signal processing units 1 according to key information of the internal communication data frame for switching and forwarding, obtains link layer data frames after adaptation processing of the switched internal communication data frame and respectively sends the link layer data frames to the plurality of signal processing units 1, sends the switched internal communication data frames to the information processing unit 8, the information storage unit 9 and the function expansion unit 10 respectively through data tapping processing, and sends the switched control data frame to the control switching unit 3; the service switching unit 2 receives the control configuration frame sent by the control switching unit 3, analyzes the control configuration frame to obtain the working parameters and the forwarding table information of the service switching unit, and sends a control response frame to the control switching unit 3; the service switching unit 2 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the service switching unit, and sends a management response frame to the management switching unit 4;
the control switching unit 3 receives control data frames sent by the service switching unit 2, the routing service unit 5, the network control unit 6 and the load control unit 7, and respectively switches and schedules the control data frames to the service switching unit 2, the routing service unit 5, the network control unit 6 and the load control unit 7 according to the frame header key information; the control switching unit 3 receives the control configuration frame sent by the routing service unit 5 and the network control unit 6 and sends the control configuration frame to the service switching unit 2 through the route-closing processing; the control switching unit 3 receives the control response frame sent by the service switching unit 2, and sends the control response frame to the routing service unit 5 and the network control unit 6 through shunt processing; the control switching unit 3 receives the management configuration frame sent by the management switching unit 4, analyzes and obtains the working parameters of the control switching unit, and sends a management response frame to the management switching unit 4;
the management switching unit 4 receives the management configuration frame sent by the load control unit 7 and sends the management configuration frame to the signal processing unit 1, the service switching unit 2, the control switching unit 3, the management switching unit 4, the routing service unit 5, the network control unit 6, the information processing unit 8, the information storage unit 9 and the function extension unit 10 according to frame header key information exchange scheduling; the management switching unit 4 receives the management response frame sent by the signal processing unit 1, the service switching unit 2, the control switching unit 3, the management switching unit 4, the routing service unit 5, the network control unit 6, the information processing unit 8, the information storage unit 9 and the function extension unit 10 and sends the management response frame to the load control unit 7 according to frame header key information exchange scheduling;
the routing service unit 5 receives the control data frame sent by the control switching unit 3, performs routing protocol processing to obtain a control data frame and a control configuration frame, and sends the control data frame and the control configuration frame to the control switching unit 3; the routing service unit 5 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the management service unit, and sends a management response frame to the management switching unit 4;
the network control unit 6 receives the control data frame sent by the control switching unit 3, performs network management and control processing to obtain a control data frame and a control configuration frame, and sends the control data frame and the control configuration frame to the control switching unit 3; the network control unit 6 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the management switching unit, and sends a management response frame to the management switching unit 4;
the load control unit 7 receives the control data frame sent by the control switching unit 3, analyzes and adapts to obtain a management configuration frame, and sends the management configuration frame to the management switching unit 4; the load control unit 7 receives the management response frame sent by the management switching unit 4, performs analysis and adaptation processing to obtain a control data frame, and sends the control data frame to the control switching unit 3;
the information processing unit 8 receives the internal communication data frame sent by the service switching unit 2, processes the information to obtain an information product, and then forms an internal communication data frame to be sent to the service switching unit 2; the information processing unit 8 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the management switching unit, and sends a management response frame to the management switching unit 4;
the information storage unit 9 receives the internal communication data frame sent by the service switching unit 2 for information storage, and forms the internal communication data frame with information according to the working state of the information storage unit and sends the internal communication data frame to the service switching unit 2; the information storage unit 9 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the management switching unit, and sends a management response frame to the management switching unit 4;
the function extension unit 10 is used as a resource extension and cooperative processing unit of the information processing unit 8, receives an internal communication data frame sent by the service switching unit 2, processes the information to obtain an information product, and then forms an internal communication data frame to be sent to the service switching unit 2; the function extension unit 10 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the management configuration frame, and sends a management response frame to the management switching unit 4.
Compared with the background technology, the invention has the following advantages:
1. the invention can meet the requirements of the satellite communication networking, the information processing and the load control functions by fusing the traditional communication satellite processing load and the information acquisition processing load, and meets the development requirement of the network communication and the information processing fusion of the current large-scale low-orbit or high-orbit satellite.
2. The invention provides a high-extensible spaceborne general processing architecture, which realizes interconnection and intercommunication of all functional units through three-level exchange, can be combined and used to meet various satellite application scenes, and has the characteristics of high reliability, good universality and the like.
Drawings
FIG. 1 is a generic on-board processing architecture according to an embodiment of the present invention.
Fig. 2 is a functional unit distribution schematic of communication networking, information processing and load control in the architecture.
Fig. 3 is a functional component of a service switching unit in a satellite-borne general processing architecture.
FIG. 4 is a functional component of a control switch unit in a satellite-borne general processing architecture.
FIG. 5 is a functional component of a management switching unit in the spaceborne general processing architecture.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, a satellite-borne general processing architecture for network-to-telecommunications convergence application includes a signal processing unit 1, a service switching unit 2, a control switching unit 3, a management switching unit 4, a routing service unit 5, a network control unit 6, a load control unit 7, an information processing unit 8, an information storage unit 9, and a function extension unit 10. Fig. 1 is a functional component diagram of the architecture, and an embodiment is built according to fig. 1.
In the framework, a plurality of signal processing units 1 are used for receiving external microwave or laser signals, obtaining link layer data frames through demodulation, decoding and frame decoding, combining the link layer data frames with control response frames and sending the link layer data frames to a service switching unit 2; the other function of the multiple signal processing units 1 is to receive the link layer data frames sent by the service switching unit 2, classify and process the link layer data frames according to frame types, analyze and acquire working parameters of the link layer data frames according to control configuration frames, and perform framing, coding, modulation and sending of external microwave or laser signals according to the link layer data frames; the other function of the multiple signal processing units 1 receives the management configuration frame sent by the management switching unit 4, analyzes the management configuration frame to obtain the working parameters of the other function, and sends a management response frame to the management switching unit 4;
the service switching unit 2 searches a forwarding table for an internal communication data frame after data multiplexing processing of the internal communication data frame sent from the received information processing unit 8, the information storage unit 9 and the function expansion unit 10, the received control data frame inserted from the control switching unit 3 and the internal data frame processed by the plurality of signal processing units 1 according to key information of the internal communication data frame for switching and forwarding, obtains link layer data frames after adaptation processing of the switched internal communication data frame and respectively sends the link layer data frames to the plurality of signal processing units 1, sends the switched internal communication data frames to the information processing unit 8, the information storage unit 9 and the function expansion unit 10 respectively through data tapping processing, and sends the switched control data frame to the control switching unit 3; the service switching unit 2 is also used for receiving the control configuration frame sent by the control switching unit 3, analyzing the control configuration frame to obtain the working parameters and the forwarding table information of the service switching unit, and sending a control response frame to the control switching unit 3; the service switching unit 2 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the service switching unit, and sending a management response frame to the management switching unit 4;
the control switching unit 3 is used for receiving control data frames sent by the service switching unit 2, the routing service unit 5, the network control unit 6 and the load control unit 7, and respectively switching and scheduling the control data frames to the service switching unit 2, the routing service unit 5, the network control unit 6 and the load control unit 7 according to the frame header key information; the control switching unit 3 has another function of receiving the control configuration frame sent by the routing service unit 5 and the network control unit 6 and sending the control configuration frame to the service switching unit 2 through the routing process; the control switching unit 3 has another function of receiving the control response frame sent by the service switching unit 2 and sending the control response frame to the routing service unit 5 and the network control unit 6 through shunting processing; the control switching unit 3 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing and acquiring the working parameters of the management switching unit and sending a management response frame to the management switching unit 4;
the management switching unit 4 is used for receiving the management configuration frame sent by the load control unit 7 and sending the management configuration frame to the signal processing unit 1, the service switching unit 2, the control switching unit 3, the management switching unit 4, the routing service unit 5, the network control unit 6, the information processing unit 8, the information storage unit 9 and the function extension unit 10 according to frame header key information exchange scheduling; the management switching unit 4 has another function of receiving the management response frame sent by the signal processing unit 1, the service switching unit 2, the control switching unit 3, the management switching unit 4, the routing service unit 5, the network control unit 6, the information processing unit 8, the information storage unit 9 and the function extension unit 10 and sending the management response frame to the load control unit 7 according to the frame header key information exchange scheduling;
the routing service unit 5 is used for receiving the control data frame sent by the control switching unit 3, performing routing protocol processing to obtain a control data frame and a control configuration frame, and sending the control data frame and the control configuration frame to the control switching unit 3; the routing service unit 5 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the management service unit, and sending a management response frame to the management switching unit 4;
the network control unit 6 is used for receiving the control data frame sent by the control switching unit 3, performing network management and control processing to obtain a control data frame and a control configuration frame, and sending the control data frame and the control configuration frame to the control switching unit 3; the network control unit 6 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the management switching unit, and sending a management response frame to the management switching unit 4;
the load control unit 7 is used for receiving the control data frame sent by the control switching unit 3, analyzing and adapting the control data frame to obtain a management configuration frame, and sending the management configuration frame to the management switching unit 4; the load control unit 7 is also used for receiving the management response frame sent by the management switching unit 4, performing analysis and adaptation processing to obtain a control data frame, and sending the control data frame to the control switching unit 3;
the information processing unit 8 is used for receiving the internal communication data frame sent by the service switching unit 2, processing the internal communication data frame to obtain an information product, forming an internal communication data frame and sending the internal communication data frame to the service switching unit 2; the information processing unit 8 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the management switching unit, and sending the management response frame to the management switching unit 4;
the information storage unit 9 is used for receiving the internal communication data frame sent by the service switching unit 2 for information storage, and forming the internal communication data frame by the information according to the working state of the information storage unit and sending the internal communication data frame to the service switching unit 2; the information storage unit 9 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the management switching unit, and sending the management response frame to the management switching unit 4;
the function expanding unit 10 is used as a resource expanding and cooperative processing unit of the information processing unit 8, receives an internal communication data frame sent by the service switching unit 2, processes the internal communication data frame to obtain an information product, and then forms an internal communication data frame to be sent to the service switching unit 2; the function extension unit 10 is also used for receiving the management configuration frame sent by the management switching unit 4, analyzing the management configuration frame to obtain the working parameters of the management configuration frame, and sending the management response frame to the management switching unit 4.
As shown in fig. 2, the signal processing unit, the service switching unit, the control switching unit, the routing service unit, and the network control unit belong to a communication networking function; the information processing unit, the information storage unit and the function expansion unit belong to an information processing function; the load control unit and the management switching unit belong to a load control function.
As shown in fig. 3, the service switching unit is composed of an input line card unit 2-1, a data multiplexing unit 2-2, a data insertion unit 2-3, a forwarding engine unit 2-4, an output line card unit 2-5, a data tapping unit 2-6, and a data capture unit 2-7.
As shown in fig. 4, the control switching unit is composed of an input processing unit 3-1, a control scheduling unit 3-2, and an output processing unit 3-3.
As shown in fig. 5, the management switching unit is composed of an input processing unit 4-1, a management scheduling unit 4-2, and an output processing unit 4-3.
The invention has the following brief working principle:
the core idea of the satellite-borne general processing architecture oriented to the network and telecommunications convergence application is to connect various functional units on a satellite, such as load control, communication networking, information processing and the like, to a three-stage switch of service switching, control switching and management switching, and to realize network and telecommunications convergence and networking transmission through the three-stage switch. Wherein, the signal processing unit of the communication networking function service plane and the information processing unit, the information storage unit and the function expansion unit of the information processing function are connected to the service switching unit; a routing service unit, a network control unit and the like of a communication networking function control plane are connected to the control switching unit; the load control functions of the signal processing unit, the service switching unit, the control switching unit, the management switching unit, the routing service unit, the network control unit, the information processing unit, the information storage unit and the function expansion unit are connected to the management switching unit; the service switching unit, the control switching unit and the management switching unit are connected with each other to exchange relevant information. The invention has the characteristics of simultaneously supporting the functions of load control, communication networking and information processing, high reliability of architecture, strong expansibility, flexible function distribution and the like, and is particularly suitable for a satellite communication system or an information acquisition satellite system supporting network and information fusion application.
Claims (1)
1. A satellite-borne general processing architecture for network and telecommunications convergence application is characterized by comprising a signal processing unit (1), a service switching unit (2), a control switching unit (3), a management switching unit (4), a routing service unit (5), a network control unit (6), a load control unit (7), an information processing unit (8), an information storage unit (9) and a function extension unit (10);
a plurality of signal processing units (1) receive external microwave or laser signals, demodulate, decode and unframe the external microwave or laser signals to obtain a link layer data frame, combine the link layer data frame with a control response frame and send the link layer data frame to a service switching unit (2); the multiple signal processing units (1) receive the link layer data frames sent by the service switching unit (2), classify and process the link layer data frames according to frame types, analyze and acquire working parameters of the multiple signal processing units according to control configuration frames, and perform framing, coding and modulation on the link layer data frames to send external microwave or laser signals; the signal processing units (1) receive the management configuration frame sent by the management switching unit (4), analyze the management configuration frame to obtain the working parameters of the signal processing units, and send the management response frame to the management switching unit (4);
the service switching unit (2) searches a forwarding table for switching and forwarding internal communication data frames after data multiplexing processing of internal communication data frames sent from the received information processing unit (8), the information storage unit (9) and the function expansion unit (10), the control data frames inserted from the received control switching unit (3) and the internal data frames processed by the plurality of signal processing units (1) according to key information of the internal communication data frames, obtains link layer data frames through adaptation processing of the switched internal communication data frames and sends the link layer data frames to the plurality of signal processing units (1) respectively, sends the switched internal communication data frames to the information processing unit (8), the information storage unit (9) and the function expansion unit (10) through data tapping processing, and sends the switched control data frames to the control switching unit (3); the service switching unit (2) receives the control configuration frame sent by the control switching unit (3), analyzes the control configuration frame to obtain the working parameters and the forwarding table information of the service switching unit and sends a control response frame to the control switching unit (3); the service switching unit (2) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the service switching unit, and sends a management response frame to the management switching unit (4);
the control switching unit (3) receives the control data frames sent by the service switching unit (2), the routing service unit (5), the network control unit (6) and the load control unit (7) and respectively switches and schedules the control data frames to the service switching unit (2), the routing service unit (5), the network control unit (6) and the load control unit (7) according to the frame header key information; the control switching unit (3) receives the control configuration frame sent by the routing service unit (5) and the network control unit (6) and sends the control configuration frame to the service switching unit (2) through the routing processing; the control switching unit (3) receives the control response frame sent by the service switching unit (2), and sends the control response frame to the routing service unit (5) and the network control unit (6) through shunt processing; the control switching unit (3) receives the management configuration frame sent by the management switching unit (4), analyzes and obtains the working parameters of the control switching unit, and sends a management response frame to the management switching unit (4);
the management switching unit (4) receives the management configuration frame sent by the load control unit (7) and sends the management configuration frame to the signal processing unit (1), the service switching unit (2), the control switching unit (3), the management switching unit (4), the routing service unit (5), the network control unit (6), the information processing unit (8), the information storage unit (9) and the function extension unit (10) according to frame header key information switching scheduling; the management switching unit (4) receives the management response frame sent by the signal processing unit (1), the service switching unit (2), the control switching unit (3), the management switching unit (4), the routing service unit (5), the network control unit (6), the information processing unit (8), the information storage unit (9) and the function extension unit (10) and sends the management response frame to the load control unit (7) according to the frame header key information switching scheduling;
the routing service unit (5) receives the control data frame sent by the control switching unit (3), performs routing protocol processing to obtain a control data frame and a control configuration frame, and sends the control data frame and the control configuration frame to the control switching unit (3); the routing service unit (5) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the routing service unit, and sends a management response frame to the management switching unit (4);
the network control unit (6) receives the control data frame sent by the control switching unit (3), performs network management and control processing to obtain a control data frame and a control configuration frame, and sends the control data frame and the control configuration frame to the control switching unit (3); the network control unit (6) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the network control unit, and sends a management response frame to the management switching unit (4);
the load control unit (7) receives the control data frame sent by the control switching unit (3), analyzes and adapts to obtain a management configuration frame, and sends the management configuration frame to the management switching unit (4); the load control unit (7) receives the management response frame sent by the management switching unit (4), analyzes and adapts to obtain a control data frame, and sends the control data frame to the control switching unit (3);
the information processing unit (8) receives the internal communication data frame sent by the service switching unit (2), processes the information to obtain an information product, and then forms an internal communication data frame to be sent to the service switching unit (2); the information processing unit (8) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the information processing unit, and sends a management response frame to the management switching unit (4);
the information storage unit (9) receives the internal communication data frame sent by the service switching unit (2) for information storage, and forms the internal communication data frame with information according to the working state of the information storage unit and sends the internal communication data frame to the service switching unit (2); the information storage unit (9) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the management switching unit, and sends a management response frame to the management switching unit (4);
the function expansion unit (10) is used as a resource expansion and cooperative processing unit of the information processing unit (8), receives the internal communication data frame sent by the service switching unit (2), processes the information to obtain an information product, and then forms the internal communication data frame to be sent to the service switching unit (2); the function expanding unit (10) receives the management configuration frame sent by the management switching unit (4), analyzes the management configuration frame to obtain the working parameters of the function expanding unit, and sends a management response frame to the management switching unit (4).
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