CN115765830A - Network-information fusion application-oriented satellite-borne general processing architecture - Google Patents

Abstract

The invention discloses a space-borne general processing framework oriented to network-information fusion applications, and belongs to the technical field of satellite payloads. The architecture includes signal processing unit, business switching unit, control switching unit, management switching unit, routing service unit, network control unit, load control unit, information processing unit, information storage unit, and function expansion unit to realize load control, signal processing, information processing, network control, and routing and switching functions to meet the needs of users for star-to-network fusion applications. The invention has the advantages of high structural reliability, flexible function allocation, good scalability, etc., and is especially suitable for satellite communication systems or information acquisition satellite systems supporting network-information fusion applications.

Description

A space-borne general processing architecture for network and information fusion applications

technical field

The invention relates to a space-borne general processing framework oriented to network-information fusion applications, belonging to the field of satellite payloads.

Background technique

With the development of satellite payload technology, the communication network load has gradually developed from the "bent pipe" transponder of traditional communication satellites, which only completes signal amplification and frequency switching, to global networking communication capabilities based on on-board processing and inter-satellite links. ; The remote sensing information processing load acquires information from traditional sensors and sends it to the ground for processing through data transmission, and gradually develops into a way of using on-board processing to obtain information products and directly distribute them to end users.

Traditional communication satellites and remote sensing satellites are constructed and developed separately in terms of management, technology, and constellation construction. The communication network load and remote sensing information processing load are independently designed and developed. This model can no longer meet the needs of users to quickly obtain information on a global scale. need. At present, the 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, all need to support the application of network and information integration. The Starlink system (Starlink) is a satellite constellation project proposed by SpaceX of the United States, which aims to use a large-scale low-orbit satellite constellation to provide global high-speed broadband access, as well as satellite-to-ground imaging services and remote sensing services. The satellite Internet system is a communication satellite constellation proposed by China Star Network Corporation, 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 requirement, but judging from the publicly available information, the communication network load and information processing load are independently designed and stacked, which cannot meet the needs of information processing products. The need for rapid distribution over satellite communication networks.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages in the above-mentioned background technology and provide an on-board general processing architecture oriented to network-information fusion applications. The invention has the advantages of supporting communication networking, integrated application capabilities of information processing and load control, high reliability of architecture, flexible function allocation, etc., and is especially suitable for satellite communication systems or information acquisition satellite systems supporting network-information integrated applications.

The purpose of the present invention is achieved like this:

A spaceborne general-purpose processing architecture oriented to network-information fusion applications, which includes a signal processing unit 1, a business switching unit 2, a control switching unit 3, a management switching unit 4, a routing service unit 5, a network control unit 6, and a load control unit 7 , an information processing unit 8, an information storage unit 9 and a function expansion unit 10;

Multiple signal processing units 1 receive external microwave or laser signals and obtain link layer data frames through demodulation, decoding, and frame deframing, which are combined with control response frames and sent to service switching unit 2; multiple signal processing units 1 receive service switching The link layer data frame sent by unit 2 is classified and processed according to the frame type, and the control configuration frame is parsed to obtain its own working parameters, and the link layer data frame is framed, coded, modulated and sent to external microwave or laser signals; multiple signal processing units 1. Receive the management configuration frame sent by the management switching unit 4, analyze and obtain its own working parameters, and send the management response frame to the management switching unit 4;

The service exchange unit 2 will receive the internal communication data frame sent from the received information processing unit 8, the information storage unit 9, and the function expansion unit 10 through the internal communication data frame after data multiplexing processing, and the control data inserted from the received control switching unit 3 The internal data frames processed by multiple signal processing units 1 are exchanged and forwarded according to the key information of the internal communication data frames, and the data frames of the link layer are obtained by adapting the exchanged internal communication data frames. Send to multiple signal processing units 1, send the exchanged internal communication data frames to the information processing unit 8, information storage unit 9, and function expansion unit 10 respectively through data demultiplexing processing, and send the exchanged control data frames to The control switching unit 3; the business switching unit 2 receives the control configuration frame sent by the control switching unit 3, analyzes and obtains its own working parameters and forwarding table information, and sends the control response frame to the control switching unit 3; the business switching unit 2 receives the management switching unit 4 The management configuration frame sent is analyzed to obtain its own working parameters, and the management response frame is sent to the management switching unit 4;

The control switching unit 3 receives the control data frames sent by the business switching unit 2, the routing service unit 5, the network control unit 6, and the load control unit 7. Unit 6, load control unit 7; 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 it to the service switching unit 2 through combined processing; the control switching unit 3 receives the control sent by the service switching unit 2 The response frame is sent to the routing service unit 5 and the network control unit 6 through branching processing; the control switching unit 3 receives the management configuration frame sent by the management switching unit 4, analyzes and obtains its own working parameters, and sends the 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 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, and the network control unit according to the key information exchange scheduling of the frame header. Unit 6, information processing unit 8, information storage unit 9 and function expansion unit 10; management switching unit 4 receiving signal processing unit 1, business switching unit 2, control switching unit 3, management switching unit 4, routing service unit 5, network control The management response frame sent by the unit 6, the information processing unit 8, the information storage unit 9 and the function expansion unit 10 is sent to the load control unit 7 according to the frame header key information exchange schedule;

The routing service unit 5 receives the control data frame sent by the control switching unit 3 and performs routing protocol processing to obtain the control data frame and control configuration frame and sends it to the control switching unit 3; the routing service unit 5 receives the management configuration frame sent by the management switching unit 4 for analysis and acquisition own working parameters, and send the 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 the control data frame and the control configuration frame and sends it to the control switching unit 3; the network control unit 6 receives the management configuration frame sent by the management switching unit 4 for analysis and acquisition own working parameters, and send the 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 the 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 Control the data frame, and send the control data frame to the control switching unit 3;

The information processing unit 8 receives the internal communication data frame sent by the business switching unit 2, performs information processing to obtain information products, and then forms an internal communication data frame and sends it to the business switching unit 2; the information processing unit 8 receives and analyzes the management configuration frame sent by the management switching unit 4 Obtain its own working parameters, and send the management response frame to the management switching unit 4;

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

The function extension unit 10, as the resource expansion and cooperative processing unit of the information processing unit 8, receives the internal communication data frame sent by the service exchange unit 2, performs information processing to obtain an information product, and then forms an internal communication data frame and sends it to the service exchange unit 2; the function extension unit 10 Receive the management configuration frame sent by the management switching unit 4, analyze and obtain its own working parameters, and send the management response frame to the management switching unit 4.

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

1. The present invention integrates traditional communication satellite processing load and information acquisition processing load into a fusion design, can adapt to satellite communication networking, information processing and load control functional requirements, and satisfies the network communication and information processing fusion of current large-scale low-orbit or high-orbit satellites development needs.

2. The present invention provides a highly scalable space-borne general-purpose processing architecture, which realizes the interconnection and intercommunication of each functional unit through three-level switching, and each functional unit can be used in combination to meet various satellite application scenarios, and has high reliability and versatility Good features.

Description of drawings

Fig. 1 is the on-board general processing architecture in the embodiment of the present invention.

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

Figure 3 shows the functional composition of the service switching unit in the on-board general processing architecture.

Figure 4 shows the functional composition of the control switching unit in the on-board general processing architecture.

Figure 5 shows the functional composition of the management switching unit in the on-board general processing architecture.

Detailed ways

The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a spaceborne general-purpose processing architecture oriented to network-information fusion 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, and 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 . Fig. 1 is a functional composition diagram of the architecture, and the embodiment is built according to Fig. 1 .

In this architecture, the role of multiple signal processing units 1 is to receive external microwave or laser signals to obtain link layer data frames after demodulation, decoding, and frame decompression, and send them to the service switching unit 2 in combination with control response frames; Another function of the signal processing unit 1 is to receive the link layer data frame sent by the service switching unit 2 and classify and process it according to the frame type, analyze and obtain its own working parameters for the control configuration frame, and perform framing, coding, and modulation for the link layer data frame Sending external microwave or laser signals; the other role of multiple signal processing units 1 is to receive the management configuration frame sent by the management switching unit 4, analyze and obtain its own working parameters, and send the management response frame to the management switching unit 4;

The service exchange unit 2 will receive the internal communication data frame sent from the received information processing unit 8, the information storage unit 9, and the function expansion unit 10 through the internal communication data frame after data multiplexing processing, and the control data inserted from the received control switching unit 3 The internal data frames processed by multiple signal processing units 1 are exchanged and forwarded according to the key information of the internal communication data frames, and the data frames of the link layer are obtained by adapting the exchanged internal communication data frames. Send to multiple signal processing units 1, send the exchanged internal communication data frames to the information processing unit 8, information storage unit 9, and function expansion unit 10 respectively through data demultiplexing processing, and send the exchanged control data frames to Control switching unit 3; Another function of the business switching unit 2 is to receive the control configuration frame sent by the control switching unit 3 to analyze and obtain its own working parameters and forwarding table information, and send the control response frame to the control switching unit 3; the business switching unit Another function of 2 is to receive the management configuration frame sent by the management switching unit 4, analyze and obtain its own working parameters, and send the management response frame to the management switching unit 4;

The function of the control switching unit 3 is to receive the control data frames sent by the business switching unit 2, the routing service unit 5, the network control unit 6, and the load control unit 7, respectively switch and dispatch them to the business switching unit 2 and the routing service unit 5 according to the key information of the frame header. , network control unit 6, load control unit 7; Another function of the control switching unit 3 is to receive the control configuration frame sent by the routing service unit 5 and the network control unit 6 and send it to the service switching unit 2 through the combination processing; the control switching unit 3 Another function of the control switch unit 3 is to receive the control response frame sent by the service switching unit 2 and send it to the routing service unit 5 and the network control unit 6 through branch processing; another function of the control switch unit 3 is to receive the management configuration frame sent by the management switch unit 4 Analyzing and obtaining its own working parameters, and sending the management response frame to the management switching unit 4;

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 business switching unit 2, the control switching unit 3, the management switching unit 4, and the routing service unit 5 according to the frame header key information exchange scheduling , network control unit 6, information processing unit 8, information storage unit 9 and function expansion unit 10; Another effect of management switching unit 4 is to receive signal processing unit 1, business switching unit 2, control switching unit 3, management switching unit 4 , the management response frame sent by the routing service unit 5, the network control unit 6, the information processing unit 8, the information storage unit 9 and the function expansion unit 10 is sent to the load control unit 7 according to the frame header key information exchange schedule;

The function of the routing service unit 5 is to receive the control data frame sent by the control switching unit 3 and process the routing protocol to obtain the control data frame and control configuration frame and send it to the control switching unit 3; another function of the routing service unit 5 is to receive the management switching unit 4 The sent management configuration frame is analyzed to obtain its own working parameters, and the management response frame is sent to the management switching unit 4;

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

The function of the load control unit 7 is to receive the control data frame sent by the control switching unit 3 for analysis and adaptation processing to obtain a 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 frame sent by the management switching unit 4. The response frame is analyzed and adapted to obtain a control data frame, and the control data frame is sent to the control switching unit 3;

The function of the information processing unit 8 is to receive the internal communication data frame sent by the business switching unit 2, carry out information processing to obtain an information product, and then form an internal communication data frame and send it to the business switching unit 2; another function of the information processing unit 8 is to receive the management switching unit 4 The management configuration frame sent is analyzed to obtain its own working parameters, and the management response frame is sent to the management switching unit 4;

The function of the information storage unit 9 is to receive the internal communication data frame sent by the business switching unit 2 for information storage, and to form the internal communication data frame according to its own working state and send it to the business 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 is analyzed to obtain its own working parameters, and the management response frame is sent to the management switching unit 4;

The function of the function expansion unit 10 is as a resource expansion and cooperative processing unit of the information processing unit 8, receiving the internal communication data frame sent by the service exchange unit 2, performing information processing to obtain an information product, and then forming an internal communication data frame and sending it to the service exchange unit 2; Another function of the function expansion unit 10 is to receive the management configuration frame sent by the management switching unit 4 to analyze and obtain its own working parameters, and to send the management response frame to the management switching unit 4 .

As shown in Figure 2, the signal processing unit, business 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 the management switching unit belong to the load control function.

As shown in Figure 3, the service switching unit consists 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 Connecting unit 2-6, 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.

Brief operating principle of the present invention is as follows:

The core idea of the on-board general-purpose processing architecture for network-information fusion applications is to connect the on-board load control, communication networking and information processing and other functional units to the three-level switch of business switching, control switching and management switching, and through the three-level switch Realize network information integration and networking transmission. Among them, the signal processing unit of the communication networking function business plane and the information processing unit, information storage unit, and function expansion unit of the information processing function are connected to the service switching unit; the routing service unit and the network control unit of the communication networking function control plane are connected to the Control switching unit; the load control function of signal processing unit, business switching unit, control switching unit, management switching unit, routing service unit, network control unit, information processing unit, information storage unit, and function expansion unit is connected to the management switching unit; business The switching unit, the control switching unit and the management switching unit are connected to each other and exchange related information. The invention has the characteristics of simultaneously supporting load control, communication networking and information processing functions, high reliability of the structure, strong expansibility, and flexible function allocation, and is especially suitable for satellite communication systems or information acquisition satellite systems supporting network-information fusion applications.

Claims (1)

1. A space-borne general processing architecture oriented to network-information fusion applications, characterized in that it 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), network control unit (6), load control unit (7), information processing unit (8), information storage unit (9) and function expansion unit (10); Multiple signal processing units (1) receive external microwave or laser signals to obtain link layer data frames after demodulation, decoding, and frame decompression, and combine them with control response frames and send them to the service switching unit (2); multiple signal processing units (1) Receive the link layer data frame sent by the service switching unit (2) Classify and process the frame type according to the frame type, analyze and obtain its own working parameters for the control configuration frame, and perform framing, coding, and modulation for the link layer data frame to send external microwave or Laser signal; multiple signal processing units (1) receive the management configuration frame sent by the management switching unit (4), analyze and obtain their own working parameters, and send the management response frame to the management switching unit (4); The service switching unit (2) converts the internal communication data frames sent from the receiving information processing unit (8), information storage unit (9) and function expansion unit (10) Control the control data frame inserted by the switching unit (3) and receive the internal data frame processed by multiple signal processing units (1) to search the forwarding table according to the key information of the internal communication data frame for switching and forwarding, and transfer the exchanged internal communication data After frame adaptation processing, the link layer data frames are sent to multiple signal processing units (1), and the exchanged internal communication data frames are sent to the information processing unit (8), information storage unit ( 9), the function expansion unit (10), sends the exchanged control data frame to the control switching unit (3); the business switching unit (2) receives the control configuration frame sent by the control switching unit (3) and analyzes it to obtain its own work parameters and forwarding table information, and send the control response frame to the control switching unit (3); the business switching unit (2) receives the management configuration frame sent by the management switching unit (4) to analyze and obtain its own working parameters, and sends the management response frame sent to the management switching unit (4); The control switching unit (3) receives the control data frames sent by the business switching unit (2), the routing service unit (5), the network control unit (6), and the load control unit (7), respectively switching and dispatching them to the business switching unit according to the key information of the frame header Unit (2), routing service unit (5), network control unit (6), load control unit (7); control switching unit (3) receives the control configuration sent by routing service unit (5), network control unit (6) The frame is combined and sent to the service switching unit (2); the control switching unit (3) receives the control response frame sent by the service switching unit (2) and is sent to the routing service unit (5) and the network control unit (6) after splitting processing. ); the control switching unit (3) receives and analyzes the management configuration frame sent by the management switching unit (4) to obtain its own working parameters, and sends the 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 it to the signal processing unit (1), the service switching unit (2), the control switching unit (3), and the management switching unit according to the frame header key information exchange scheduling unit (4), routing service unit (5), network control unit (6), information processing unit (8), information storage unit (9) and function expansion unit (10); management switching unit (4) receiving signal processing unit (1), business switching unit (2), control switching unit (3), management switching unit (4), routing service unit (5), network control unit (6), information processing unit (8), information storage unit ( 9) and the management response frame sent by the function expansion unit (10) is sent to the load control unit (7) according to the key information exchange schedule of the frame header; The routing service unit (5) receives the control data frame sent by the control switching unit (3) and processes the routing protocol to obtain the control data frame and control configuration frame and sends it to the control switching unit (3); the routing service unit (5) receives the management switching unit ( 4) Analyze the sent management configuration frame to obtain its own working parameters, and send the 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) and performs network management and control processing to obtain the control data frame and control configuration frame and sends it to the control switching unit (3); the network control unit (6) receives the management switching unit ( 4) Analyze the sent management configuration frame to obtain its own working parameters, and send the 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 switching unit (4) and sends The management response frame is analyzed and adapted to obtain a control data frame, and the control data frame is sent to the control switching unit (3); The information processing unit (8) receives the internal communication data frame sent by the business switching unit (2), performs information processing to obtain information products, and then forms an internal communication data frame and sends it to the business switching unit (2); the information processing unit (8) receives the management switching unit (4) Analyze the sent management configuration frame to obtain its own working parameters, and send the management response frame to the management switching unit (4); The information storage unit (9) receives the internal communication data frame sent by the business switching unit (2) for information storage, and forms the information into an internal communication data frame according to its own working status and sends it to the business switching unit (2); the information storage unit (9) receives Analyzing the management configuration frame sent by the management switching unit (4) to obtain its own working parameters, and sending the management response frame to the management switching unit (4); The function expansion unit (10), as the resource expansion and collaborative processing unit of the information processing unit (8), receives the internal communication data frame sent by the business exchange unit (2), performs information processing to obtain information products, and then composes an internal communication data frame and sends it to the business exchange The unit (2); the function expansion unit (10) receives the management configuration frame sent by the management switching unit (4), analyzes and obtains its own working parameters, and sends the management response frame to the management switching unit (4).

Images