A general on-board processing architecture for network and information integration applications

Abstract

The present invention discloses a satellite-borne general processing architecture for network and information fusion applications, belonging to the field of satellite payload technology. The architecture includes 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, and a function expansion unit, etc., to realize functions such as load control, signal processing, information processing, network control, and routing switching, and meet the user's on-board network and information fusion application requirements. The present invention has the advantages of high architecture reliability, flexible function allocation, and good scalability, and is particularly suitable for satellite communication systems or information acquisition satellite systems that support network and information fusion applications.

Description

Technical Field

[0001] The present invention relates to a satellite-borne general processing architecture for network and information fusion applications, belonging to the field of satellite payloads. Background Art

[0002] With the development of satellite payload technology, communication network payloads have gradually evolved from the "bent pipe" transponders of traditional communication satellites that only perform signal amplification and frequency switching to global networking communication capabilities based on on-board processing and inter-satellite links; remote sensing information processing payloads have gradually evolved from traditional sensors that obtain information through digital transmission and send it to ground processing to a method of obtaining information based on on-board processing and directly distributing it to end users.

[0003] Traditional communication satellites and remote sensing satellites are built and developed separately in terms of management, technology, and constellation construction. The communication network payload and remote sensing information processing payload are independently designed and developed. This model can no longer meet the needs of users to quickly obtain information on a global scale. At present, typical systems that have been planned and constructed at home and abroad, such as the Starlink system in the United States and the satellite Internet system in China, need to support the integration of network and information technology applications. The Starlink system is a satellite constellation project proposed by SpaceX in the United States. It aims to use a large-scale low-orbit satellite constellation to provide global high-speed broadband access, as well as satellite earth imaging services and remote sensing services. The satellite Internet system is a communication satellite constellation proposed by China StarNet Company, which realizes global communication coverage capabilities. At the same time, based on the constellation, it can provide space-based user data transmission, earth observation data processing and other capabilities. From the introduction of the two systems, it can be seen that the integrated application of communication network and information processing has become a basic demand, but from the publicly available information, the communication network payload and the information processing payload are independently designed and stacked, which cannot meet the needs of rapid distribution of information processing products using satellite communication networks. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned background technology and provide a satellite-based general processing architecture for network and information fusion applications. The present invention has the advantages of supporting communication networking, information processing and payload control fusion application capabilities, high architecture reliability, and flexible function allocation, and is particularly suitable for satellite communication systems or information acquisition satellite systems that support network and information fusion applications.

[0005] The object of the present invention is achieved in that:

[0006] A satellite-based general processing architecture for network and information integration applications, 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 expansion unit 10;

[0007] Multiple signal processing units 1 receive external microwave or laser signals, demodulate, decode, and deframe to obtain link layer data frames, and combine them with control response frames to send to service switching unit 2; multiple signal processing units 1 receive link layer data frames sent by service switching unit 2, classify and process them according to frame types, parse control configuration frames to obtain their own working parameters, and frame, encode, and modulate link layer data frames to send external microwave or laser signals; multiple signal processing units 1 receive management configuration frames sent by management switching unit 4, parse them to obtain their own working parameters, and send management response frames to management switching unit 4;

[0008] The service exchange unit 2 searches the transfer table for the internal communication data frames after data multiplexing processing from the internal communication data frames sent by the receiving information processing unit 8, the information storage unit 9, and the function expansion unit 10, the control data frames inserted from the received control exchange unit 3, and the internal data frames processed by the multiple signal processing units 1 according to the key information of the internal communication data frames, and exchanges and forwards them, and adapts the exchanged internal communication data frames to obtain link layer data frames and sends them to the multiple signal processing units 1 respectively, and sends the exchanged internal communication data frames to the information processing unit 8, the information storage unit 9, and the function expansion unit 10 respectively after data demultiplexing processing, and sends the exchanged control data frames to the control exchange unit 3; the service exchange unit 2 receives the control configuration frame sent by the control exchange unit 3, parses it to obtain its own working parameters and transfer table information, and sends the control response frame to the control exchange unit 3; the service exchange unit 2 receives the management configuration frame sent by the management exchange unit 4, parses it to obtain its own working parameters, and sends the management response frame to the management exchange unit 4;

[0009] 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 exchanges and dispatches them 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 key information of the frame header; the control switching unit 3 receives the control configuration frames sent by the routing service unit 5 and the network control unit 6, and sends them to the service switching unit 2 after the combination processing; the control switching unit 3 receives the control response frames sent by the service switching unit 2, and sends them to the routing service unit 5 and the network control unit 6 after the branch processing; the control switching unit 3 receives the management configuration frames sent by the management switching unit 4, parses and obtains its own working parameters, and sends the management response frames to the management switching unit 4;

[0010] The management switching unit 4 receives the management configuration frame sent by the load control unit 7 and sends it 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 the exchange scheduling of the key information in the frame header; 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 according to the exchange scheduling of the key information in the frame header and sends it to the load control unit 7;

[0011] The routing service unit 5 receives the control data frame sent by the control switching unit 3, performs routing protocol processing to obtain the control data frame and the control configuration frame, and sends them to the control switching unit 3; the routing service unit 5 receives the management configuration frame sent by the management switching unit 4, performs analysis to obtain its own working parameters, and sends the management response frame to the management switching unit 4;

[0012] The network control unit 6 receives the control data frame sent by the control switching unit 3, performs network control processing to obtain the control data frame and the control configuration frame, and sends them to the control switching unit 3; the network control unit 6 receives the management configuration frame sent by the management switching unit 4, parses it to obtain its own working parameters, and sends the management response frame to the management switching unit 4;

[0013] The load control unit 7 receives the control data frame sent by the control switching unit 3, performs analysis and adaptation processing to obtain a management configuration frame, and sends it 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;

[0014] The information processing unit 8 receives the internal communication data frame sent by the service switching unit 2, processes the information to obtain the information product, and then forms the internal communication data frame and sends it to the service switching unit 2; the information processing unit 8 receives the management configuration frame sent by the management switching unit 4, parses it to obtain its own working parameters, and sends the management response frame to the management switching unit 4;

[0015] The information storage unit 9 receives the internal communication data frame sent by the service switching unit 2 for information storage, and according to its own working state, the information is combined into an internal communication data frame and sent to the service switching unit 2; the information storage unit 9 receives the management configuration frame sent by the management switching unit 4, parses it to obtain its own working parameters, and sends the management response frame to the management switching unit 4;

[0016] The function expansion unit 10 serves as a resource expansion and collaborative processing unit of the information processing unit 8. It receives the internal communication data frame sent by the business exchange unit 2, processes the information to obtain information products, and then composes the internal communication data frame to send to the business exchange unit 2; the function expansion unit 10 receives the management configuration frame sent by the management exchange unit 4, parses it to obtain its own working parameters, and sends the management response frame to the management exchange unit 4.

[0017] Compared with the background technology, the present invention has the following advantages:

[0018] 1. The present invention integrates the traditional communication satellite processing payload and information acquisition processing payload to meet the requirements of satellite communication networking, information processing and payload control functions, and the current development requirements of network communication and information processing integration of large-scale low-orbit or high-orbit satellites.

[0019] 2. The present invention provides a highly scalable satellite-borne general processing architecture, which realizes the interconnection and intercommunication of various functional units through three-level switching. The functional units can be used in combination to meet various satellite application scenarios, and has the characteristics of high reliability and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the onboard general processing architecture in the embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the distribution of functional units of communication networking, information processing and load control in the architecture.

[0022] Figure 3 It is the functional component of the business exchange unit in the onboard general processing architecture.

[0023] Figure 4 It is the functional component of the control switching unit in the onboard general processing architecture.

[0024] Figure 5 It is the functional component of the management switching unit in the onboard general processing architecture. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 As shown, a satellite-based general processing architecture for network and information integration applications 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 expansion unit 10. Figure 1 This is the functional composition diagram of the architecture. Figure 1 Build.

[0027] In this architecture, the function of multiple signal processing units 1 is to receive external microwave or laser signals, demodulate, decode, and deframe to obtain link layer data frames, and combine them with control response frames to send them to the service switching unit 2; another function of multiple signal processing units 1 is to receive link layer data frames sent by the service switching unit 2, classify and process them according to frame types, parse control configuration frames to obtain their own working parameters, and frame, encode, and modulate link layer data frames to send external microwave or laser signals; another function of multiple signal processing units 1 is to receive management configuration frames sent by the management switching unit 4, parse them to obtain their own working parameters, and send management response frames to the management switching unit 4;

[0028] The service exchange unit 2 searches the transfer table for exchange and forwarding the internal communication data frames sent by the receiving information processing unit 8, the information storage unit 9, and the function expansion unit 10 after data multiplexing, the control data frames inserted from the received control exchange unit 3, and the internal data frames processed by the multiple signal processing units 1 according to the key information of the internal communication data frames, and adapts the exchanged internal communication data frames to obtain link layer data frames and sends them to the multiple signal processing units 1 respectively, and sends the exchanged internal communication data frames to the information processing unit 8, the information storage unit 9, and the function expansion unit 10 respectively after data demultiplexing, and sends the exchanged control data frames to the control exchange unit 3; another function of the service exchange unit 2 is to receive the control configuration frame sent by the control exchange unit 3, parse it to obtain its own working parameters and transfer table information, and send the control response frame to the control exchange unit 3; another function of the service exchange unit 2 is to receive the management configuration frame sent by the management exchange unit 4, parse it to obtain its own working parameters, and send the management response frame to the management exchange unit 4;

[0029] The function of the control switching unit 3 is to receive 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 to exchange and dispatch them 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 key information of the frame header; another function of the control switching unit 3 is to receive the control configuration frames sent by the routing service unit 5 and the network control unit 6 and send them to the service switching unit 2 after the combination processing; another function of the control switching unit 3 is to receive the control response frames sent by the service switching unit 2 and send them to the routing service unit 5 and the network control unit 6 after the branch processing; another function of the control switching unit 3 is to receive the management configuration frames sent by the management switching unit 4, parse and obtain its own working parameters, and send the management response frames to the management switching unit 4;

[0030] The function of the management switching unit 4 is to receive the management configuration frame sent by the load control unit 7 and send it 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 the exchange scheduling of the key information in the frame header; another function of the management switching unit 4 is to receive 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 according to the exchange scheduling of the key information in the frame header and send it to the load control unit 7;

[0031] The function of the routing service unit 5 is to receive the control data frame sent by the control switching unit 3, perform routing protocol processing to obtain the control data frame and the control configuration frame and send them to the control switching unit 3; another function of the routing service unit 5 is to receive the management configuration frame sent by the management switching unit 4, parse it to obtain its own working parameters, and send the management response frame to the management switching unit 4;

[0032] The function of the network control unit 6 is to receive the control data frame sent by the control switching unit 3, perform network control processing to obtain the control data frame and the control configuration frame and send them to the control switching unit 3; another function of the network control unit 6 is to receive the management configuration frame sent by the management switching unit 4, parse it to obtain its own working parameters, and send the management response frame to the management switching unit 4;

[0033] The function of the load control unit 7 is to receive the control data frame sent by the control switching unit 3, analyze and adapt the frame to obtain the management configuration frame, and send it to the management switching unit 4; another function of the load control unit 7 is to receive the management response frame sent by the management switching unit 4, analyze and adapt the frame to obtain the control data frame, and send the control data frame to the control switching unit 3;

[0034] The function of the information processing unit 8 is to receive the internal communication data frame sent by the service switching unit 2, perform information processing to obtain information products, and then form internal communication data frames to send to the service switching unit 2; another function of the information processing unit 8 is to receive the management configuration frame sent by the management switching unit 4, parse it to obtain its own working parameters, and send the management response frame to the management switching unit 4;

[0035] The function of the information storage unit 9 is to receive the internal communication data frame sent by the service switching unit 2 for information storage, and to compose the information into an internal communication data frame according to its own working state and send it to the service switching unit 2; another function of the information storage unit 9 is to receive the management configuration frame sent by the management switching unit 4, parse it to obtain its own working parameters, and send the management response frame to the management switching unit 4;

[0036] The function of the function expansion unit 10 is to serve as a resource expansion and collaborative processing unit of the information processing unit 8, to receive the internal communication data frame sent by the business exchange unit 2, to process the information to obtain the information product, and then to form an internal communication data frame and send it to the business exchange unit 2; another function of the function expansion unit 10 is to receive the management configuration frame sent by the management exchange unit 4, to parse it to obtain its own working parameters, and to send the management response frame to the management exchange unit 4.

[0037] like Figure 2 As shown, the signal processing unit, service switching unit, control switching unit, routing service unit and network control unit belong to the communication networking function; the information processing unit, information storage unit and function expansion unit belong to the information processing function; the load control unit and management switching unit belong to the load control function.

[0038] like Figure 3 As shown, 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 demultiplexing unit 2-6, and a data capturing unit 2-7.

[0039] like Figure 4 As shown, 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.

[0040] like Figure 5 As shown, 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.

[0041] The brief working principle of the present invention is as follows:

[0042] The core idea of ​​the satellite-borne general processing architecture for network and information integration applications is to connect the functional units such as payload control, communication networking and information processing on the satellite to the three-level switches of business exchange, control exchange and management exchange, and realize network and information integration and networking transmission through the three-level switches. Among them, the signal processing unit of the business plane of the communication networking function and the information processing unit, information storage unit, and function expansion unit of the information processing function are connected to the business exchange unit; the routing service unit, network control unit, etc. of the control plane of the communication networking function are connected to the control exchange unit; the signal processing unit, business exchange unit, control exchange unit, management exchange unit, routing service unit, network control unit, information processing unit, information storage unit, and payload control function of the function expansion unit are connected to the management exchange unit; the business exchange unit, control exchange unit, and management exchange unit are connected to each other to exchange relevant information. The present invention has the characteristics of supporting payload control, communication networking and information processing functions at the same time, high architecture reliability, strong scalability, flexible function allocation, etc., and is particularly suitable for satellite communication systems or information acquisition satellite systems that support network and information integration applications.

Claims

1. A satellite-based general processing architecture for network and information integration applications, characterized in that: It 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 expansion unit (10); The plurality of signal processing units (1) receive external microwave or laser signals, demodulate, decode and deframe to obtain link layer data frames, and combine them with control response frames to send to the service switching unit (2); the plurality of signal processing units (1) receive link layer data frames sent by the service switching unit (2), classify and process them according to frame types, parse the control configuration frames to obtain their own working parameters, and frame, encode and modulate the link layer data frames to send external microwave or laser signals; the plurality of signal processing units (1) receive management configuration frames sent by the management switching unit (4), parse them to obtain their own working parameters, and send management response frames to the management switching unit (4); The service switching unit (2) searches the forwarding table for the internal communication data frames sent from the receiving information processing unit (8), the information storage unit (9), and the function expansion unit (10) after data multiplexing, the control data frames inserted from the receiving control switching unit (3), and the internal data frames processed by the receiving multiple signal processing units (1) according to the key information of the internal communication data frames, and switches and forwards them, and adapts the exchanged internal communication data frames to obtain link layer data frames and sends them to the multiple signal processing units (1) respectively, and sends the exchanged internal communication data frames to the information processing unit (8), the information storage unit (9), and the function expansion unit (10) respectively after data demultiplexing, and sends the exchanged 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), parses it to obtain its own working parameters and forwarding table information, and sends the 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), parses it to obtain its own working parameters, and sends the 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 exchanges and dispatches the 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 key information in the frame header; the control switching unit (3) receives control configuration frames sent by the routing service unit (5) and the network control unit (6), and sends the frames to the service switching unit (2) after combining; the control switching unit (3) receives control response frames sent by the service switching unit (2), and sends the frames to the routing service unit (5) and the network control unit (6) after branching; the control switching unit (3) receives management configuration frames sent by the management switching unit (4), parses and obtains its own working parameters, and sends management response frames 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 it 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 the exchange scheduling of the key information in the frame header; 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 it to the load control unit (7) according to the exchange scheduling of the key information in the frame header; 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 them to the control switching unit (3); the routing service unit (5) receives the management configuration frame sent by the management switching unit (4), parses it to obtain its own working parameters, 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 control processing to obtain a control data frame and a control configuration frame, and sends them to the control switching unit (3); the network control unit (6) receives the management configuration frame sent by the management switching unit (4), parses it to obtain its own working parameters, 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), performs analysis and adaptation processing to obtain a management configuration frame, and sends it 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 information products, and then forms the internal communication data frame and sends it to the service switching unit (2); the information processing unit (8) receives the management configuration frame sent by the management switching unit (4), parses it to obtain its own working parameters, and sends the 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) to store the information, and according to its own working state, composes the information into an internal communication data frame and sends it to the service switching unit (2); the information storage unit (9) receives the management configuration frame sent by the management switching unit (4), parses it to obtain its own working parameters, and sends the management response frame to the management switching unit (4); The function extension unit (10) serves as a resource extension and collaborative 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 information products, and then forms an internal communication data frame to send to the service switching unit (2); the function extension unit (10) receives a management configuration frame sent by the management switching unit (4), parses the frame to obtain its own working parameters, and sends a management response frame to the management switching unit (4).

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