Satellite-borne switching control device based on on-board processing

Abstract

The application discloses a kind of star-based processing-based satellite-borne exchange control device, it is related to satellite communication field.The application supports the integrated satellite-ground backup processing of routing protocol, network control and the like information, greatly enhances the reliability and invulnerability of satellite-ground control system of communication satellite based on star-based processing.The application includes ground protocol processing unit, satellite-borne protocol processing unit, ground management unit, ground network control unit, satellite-borne network control unit, exchange control unit, data exchange unit, baseband processing unit and laser processing unit, the application is a centralized star-based exchange control mode, supports protocol, management, control and the like information interaction, fusion, processing and storage, and according to information distribution strategy generates the configuration information of exchange, baseband processing and the like functional entity, realizes the flexible management and control and centralized configuration of routing table, time slot, carrier and the like resource.

Description

Technical Field

[0001] This invention relates to a satellite-borne switching control device based on on-board processing, belonging to the field of satellite communication. Background Technology

[0002] With the rapid development of communication satellite technology, on-board processing-based satellite communication systems will be the mainstream of future development. However, the unrepairability of satellite nodes leads to the vulnerability of satellite communication systems. Once a payload of a satellite node malfunctions, it may cause the entire satellite system to lose its function. Therefore, when designing satellite node payloads, their reliability and resilience must be fully considered, and redundancy design should be implemented for satellite node payloads from multiple dimensions and aspects. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a switching control device that supports satellite-to-ground function backup, enabling backup processing of satellite-to-ground routing protocols and satellite-to-ground network control. This invention has advantages such as strong scalability and high integration, greatly enhancing the reliability and resilience of satellite node payload functions based on on-board processing.

[0004] The objective of this invention is achieved as follows:

[0005] A satellite-borne switching control device based on on-board processing includes a ground protocol processing unit 1, a satellite-borne protocol processing unit 2, a ground management unit 3, a ground control processing unit 4, a satellite-borne control processing unit 5, a data switching unit 7, a baseband processing unit 8, and a laser processing unit 9, characterized in that it further includes a switching control unit 6.

[0006] The aforementioned onboard switching control device based on onboard processing comprises three types of information streams, which are described below:

[0007] Information Flow 1: Ground Protocol Processing Unit 1 and Onboard Protocol Processing Unit 2 are in a cold backup relationship. Ground Protocol Processing Unit 1 is deployed at the ground master station, and Onboard Protocol Processing Unit 2 is deployed on the communication satellite node based on onboard processing. Only one functional unit of Ground Protocol Processing Unit 1 and Onboard Protocol Processing Unit 2 is active at any given time. Ground Protocol Processing Unit 1 generates dynamic routing configuration information interactively according to the dynamic routing protocol and sends it to the switching control unit 6 through the satellite-to-ground feeder link. The Onboard Protocol Processing Unit 2 generates routing configuration information in the same way as Ground Protocol Processing Unit 1 and sends the dynamic routing configuration information to the switching control unit 6 through the internal interface of the communication satellite node. After receiving the routing configuration information from Ground Protocol Processing Unit 1 or Onboard Protocol Processing Unit 2, the switching control unit 6 completes operations such as information scheduling, priority management, storage management, and protocol adaptation, and generates an internal parameter configuration frame to send to the data switching unit 7. The data switching unit 7 stores different configuration information into the corresponding block RAM storage according to the frame type field based on the received internal parameter configuration frame.

[0008] Information Flow Two: Ground Management Unit 3 generates satellite node payload management information based on mission planning results and sends it to Switching Control Unit 6 via the satellite-to-ground feeder link. Upon receiving the satellite node payload management information, Switching Control Unit 6 performs operations such as information scheduling, priority management, storage management, and protocol adaptation. It then generates internal parameter configuration frames and sends them to Data Switching Unit 7, Baseband Processing Unit 8, or Laser Processing Unit 9 according to the information type. Data Switching Unit 7, Baseband Processing Unit 8, or Laser Processing Unit 9, upon receiving the internal parameter configuration frames, stores different configuration information into the corresponding block RAM storage based on the frame type field.

[0009] Information Flow 3: The ground network control unit 4 and the satellite network control unit 5 are in a hot backup relationship. The ground network control unit 4 is deployed at the ground master station, and the satellite network control unit 5 is deployed at the communication satellite node based on on-board processing. The ground network control unit 4 and the satellite network control unit 5 can coexist and switch different application modes according to the remote control command of the communication satellite. Ground network control unit 4 generates resource allocation parameters, beam control parameters, port rate parameters, and other information based on the small station network access strategy and resource requirements, and sends them to switching control unit 6 via the satellite-to-ground feeder link. Satellite network control unit 5 generates resource allocation parameters, beam control parameters, port rate parameters, and other information in the same way as ground network control unit 5, and sends them to switching control unit 6 via the communication satellite's internal interface. Switching control unit 6 receives the resource allocation parameters, beam control parameters, rate parameters, and other configuration information from ground network control unit 4 or satellite network control unit 5, completes information scheduling, priority management, storage management, protocol adaptation, and other operations, generates internal parameter configuration frames, and sends them to baseband processing unit 8 or laser processing unit 9 according to different types. Baseband processing unit 8 or laser processing unit 9, based on the received internal parameter configuration frames, stores different configuration information into the corresponding block RAM storage according to the frame type field.

[0010] Furthermore, the switching control unit 6 comprises a receiving processing unit 6-1, a service scheduling unit 6-2, a memory management unit 6-3, a data processing unit 6-4, a storage management unit 6-5, a data sending unit 6-6, a protocol adaptation unit 6-7, a switching configuration unit 6-8, a baseband processing configuration unit 6-9, a laser processing configuration unit 6-10, and a satellite-to-ground broadcast generation unit 6-11.

[0011] The receiving and processing unit 6-1 receives initial information such as protocols, management, or control from the ground protocol processing unit 1, the spaceborne protocol processing unit 2, the ground management unit 3, the ground network control processing unit 4, and the spaceborne network control processing unit 5, and performs frame header and frame content verification on this initial information. If the verification is successful, the initial information is sent to the service scheduling unit 6-2. If the verification fails, the initial information is discarded and the error type is returned.

[0012] After receiving the initial information from the receiving and processing unit 6-1, the service scheduling unit 6-2 performs fusion processing on the received initial information according to the set algorithm, and extracts the address and type fields. Using the address and type fields as indexes, it extracts the storage information from the memory management unit 6-3. Then, it performs comparison and aggregation processing on the storage information and the initial information according to the set strategy. Finally, it sends the comparison and aggregation information to the memory management unit 6-3 for storage and to the data processing unit 6-4 for further processing.

[0013] The memory management unit 6-3 uses address and type fields as indexes to queue, manage, and store information. It can retrieve stored information based on the index of the business scheduling unit 6-2, and can also receive information aggregated by the business scheduling unit 6-2. In addition, the memory management unit 6-3 can also provide parameter configuration information to the data processing unit 6-4. At the same time, the memory management unit also needs to periodically send configuration information storage parameters to the storage management unit 6-5.

[0014] Data processing unit 6-4 supports two configuration strategies: Strategy 1: It can receive processing information from service scheduling unit 6-2 and generate trigger information configuration parameters according to the trigger-based configuration information generation strategy; Strategy 2: It can periodically extract storage information from memory management unit 6-3 and generate timed information configuration parameters according to the timed configuration information generation strategy. Both configuration strategies can coexist. Data processing unit 6-4 sends the information configuration parameters to data sending unit 6-6 according to a priority planning strategy.

[0015] The storage management unit 6-5 receives the configuration information storage parameters from the memory management unit 6-3 and periodically stores the configuration information storage parameters into the corresponding FLASH memory.

[0016] Data sending unit 6-6 receives trigger information configuration parameters or timing information configuration parameters from data processing unit 6-4, fills in the target parameter configuration address information sent by protocol adaptation unit 6-7 according to the protocol encapsulation format and configuration method, generates an internal parameter configuration frame, and then sends it to switching configuration unit 6-8, baseband processing configuration unit 6-9 and laser processing configuration unit 6-10 respectively according to different parameter types.

[0017] Protocol adaptation unit 6-7 mainly generates target parameter configuration address information based on the task planning results, and sends the target parameter configuration address information to data sending unit 6-6;

[0018] The switching configuration unit 6-8 receives the internal parameter configuration frame from the data sending unit 6-6, and sends it to different processing modules of the data switching unit 7 according to different parameter types and target parameter configuration address information.

[0019] The baseband processing configuration unit 6-9 receives the internal parameter configuration frame from the data sending unit 6-6, and sends it to different processing modules of multiple baseband processing units 8 according to different parameter types and target parameter configuration address information.

[0020] The laser processing configuration unit 6-10 receives the internal parameter configuration frame from the data sending unit 6-6, and sends it to different processing modules of multiple laser processing units 9 according to different parameter types and target parameter configuration address information;

[0021] According to the set protocol format and software algorithm, the satellite-to-ground broadcast generation unit 6-11 periodically extracts status information parameters from the memory management unit 6-3, generates satellite-to-ground broadcast data frames and satellite-to-ground announcement data frames, and then sends them to the satellite ground user station via different satellite-to-ground links in a broadcast manner.

[0022] Furthermore, the aforementioned switching control unit 6 can be implemented using a module hot backup method to ensure the reliability and resilience of the spaceborne switching control system.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. This invention, through an onboard switching control device, enables backup processing of satellite-to-ground routing protocols, satellite-to-ground network control information, and network management information, greatly increasing the flexibility, reliability, and resilience of the communication satellite system;

[0025] 2. This invention is proposed in a satellite communication system based on on-board processing, and its architecture design fully adheres to the principles of low resource consumption and simple and reliable implementation;

[0026] 3. The onboard switching control device in this invention also employs inter-module backup processing;

[0027] 4. This invention supports scalable processing of different functional units. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the implementation of a spaceborne switching control device based on on-board processing according to the present invention.

[0029] Figure 2 This is the implementation circuit diagram of the switching control unit. Detailed Implementation

[0030] Reference Figure 1 The present invention provides a spaceborne switching control device based on on-board processing, comprising a ground protocol processing unit 1, a spaceborne protocol processing unit 2, a ground management unit 3, a ground network control processing unit 4, a spaceborne network control processing unit 5, a switching control unit 6, a data switching unit 7, a baseband processing unit 8, and a laser processing unit 9. Figure 1 This is an electrical schematic diagram of an embodiment of a spaceborne switching control device based on on-board processing according to the present invention. The embodiment is based on... Figure 1 Connecting lines.

[0031] The aforementioned onboard switching control device, based on onboard processing, has the following functions: Ground protocol processing unit 1 generates dynamic routing configuration information on the ground according to the satellite-to-ground routing interaction protocol; Onboard protocol processing unit 2 generates dynamic routing configuration information onboard according to the satellite-to-ground routing interaction protocol, and Ground protocol processing unit 1 and Onboard protocol processing unit 2 are in a cold backup relationship; Ground management unit 3 generates satellite node payload management information based on mission planning results; Ground network control unit 4 generates configuration information such as resource allocation parameters, beam control parameters, and port rate parameters on the ground according to small station network access strategies and resource requirements; Onboard control processing unit 5 generates configuration information such as resource allocation parameters, beam control parameters, and port rate parameters onboard according to small station network access strategies and resource requirements, and Ground network control unit 4 and Onboard control processing unit 5 are in a hot backup relationship; Switching The function of control unit 6 is to receive dynamic routing configuration information from ground protocol processing unit 1 and onboard protocol processing unit 2, payload management information from ground management unit 3, and resource allocation parameters, beam control parameters, port rate parameters, and other configuration information from ground network control unit 4 and onboard control processing unit 5. It then performs information scheduling, priority management, storage management, protocol adaptation, and other operations to generate internal parameter configuration frames. The function of data exchange unit 7 is to receive the internal parameter configuration frames from exchange control unit 6 and manage the configuration of communication satellite exchange functions. The function of baseband processing unit 8 is to receive the internal parameter configuration frames from exchange control unit 6 and manage the configuration of satellite system modulation / demodulation, beam control, and other functions. The function of laser processing unit 9 is to receive the internal parameter configuration frames from exchange control unit 6 and manage the configuration of inter-satellite and satellite-to-ground laser processing functions.

[0032] The switching control unit 6 comprises a receiving processing unit 6-1, a service scheduling unit 6-2, a memory management unit 6-3, a data processing unit 6-4, a storage management unit 6-5, a data sending unit 6-6, a protocol adaptation unit 6-7, a switching configuration unit 6-8, a baseband processing configuration unit 6-9, a laser processing configuration unit 6-10, and a satellite-to-ground broadcast generation unit 6-11; the embodiment follows... Figure 2 Connecting lines.

[0033] The receiving and processing unit 6-1 receives dynamic routing configuration information from the ground protocol processing unit 1 and the spaceborne protocol processing unit 2, payload management information from the ground management unit 3, and resource allocation parameters, beam control parameters, port rate parameters, and other configuration information from the ground network control unit 4 and the spaceborne control processing unit 5, and performs frame header and frame content verification. The service scheduling unit 6-2 performs fusion processing on the received initial information according to a set algorithm. The memory management unit 6-3 uses address and type fields as indexes to queue, manage, and store information. The data processing unit 6-4 triggers and periodically sends information configuration parameters. The storage management unit 6-5 periodically stores configuration information storage parameters into the corresponding FL (Function File System). The data transmission unit 6-6 generates internal parameter configuration frames based on the target parameter configuration address information issued by the protocol adaptation unit 6-7. The protocol adaptation unit 6-7 generates target parameter configuration address information based on the task planning results. The switching configuration unit 6-8 configures and manages the parameters of the data switching unit 7. The baseband processing configuration unit 6-9 configures and manages the parameters of the baseband processing unit 8. The laser processing configuration unit 6-10 configures and manages the parameters of the laser processing unit 9. The satellite-to-ground broadcast generation unit 6-11 extracts status information parameters from the memory management unit 6-3 periodically according to the set protocol format and software algorithm to generate satellite-to-ground broadcast data frames and satellite-to-ground announcement data frames.

[0034] The basic working principle of this invention is as follows:

[0035] The switching control unit 6 receives dynamic routing configuration information from the ground protocol processing unit 1 and the spaceborne protocol processing unit 2, payload management information from the ground management unit 3, and resource allocation parameters, beam control parameters, and port rate parameters from the ground network control unit 4 and the spaceborne control processing unit 5. It then performs information scheduling, priority management, storage management, and protocol adaptation operations, generating internal parameter configuration frames. The switching control unit 6 sends different internal parameter configuration frames to the data switching unit 7, baseband processing unit 8, and laser processing unit 9 for processing. Through this simplified workflow, it completes the configuration and management functions for dynamic routing configuration information, payload management information, resource allocation information, beam control information, and port rate information.

Claims

1. A spaceborne switching control device based on on-board processing, comprising a ground protocol processing unit (1), a spaceborne protocol processing unit (2), a ground management unit (3), a ground network control unit (4), a spaceborne network control unit (5), a data switching unit (7), a baseband processing unit (8), and a laser processing unit (9), characterized in that: It also includes a switching control unit (6); Among them, the ground protocol processing unit (1) generates dynamic routing configuration information on the ground according to the satellite-ground routing interaction protocol; The onboard protocol processing unit (2) generates dynamic routing configuration information on the satellite according to the satellite-to-ground routing interaction protocol; Ground management unit (3) generates satellite node payload management information based on mission planning results; The ground network control unit (4) generates configuration information on the ground, including resource allocation parameters, beam control parameters and port rate parameters, according to the small station network access strategy and resource requirements; The onboard network control unit (5) generates configuration information on the satellite, including resource allocation parameters, beam control parameters and port rate parameters, according to the small station network access strategy and resource requirements. The onboard network control unit (5) and the ground network control unit (4) are hot backups of each other. The switching control unit (6) is used to receive dynamic routing configuration information from the ground protocol processing unit (1) and the spaceborne protocol processing unit (2), receive payload management information from the ground management unit (3), and receive configuration information from the ground network control unit (4) and the spaceborne network control unit (5), and respectively perform operations including information scheduling, priority management, storage management and protocol adaptation, and generate internal parameter configuration frames. The data exchange unit (7) receives the internal parameter configuration frame of the exchange control unit (6) to realize the configuration management of the communication satellite exchange function; The baseband processing unit (8) is responsible for receiving the internal parameter configuration frames of the switching control unit (6) and implementing the configuration management of the satellite system's modulation and demodulation and beam control functions. The function of the laser processing unit (9) is to receive the internal parameter configuration frame of the switching control unit (6) and realize the configuration management of the inter-satellite and inter-ground laser processing function of the satellite system; A spaceborne communication and control device based on onboard processing includes three information interaction methods, among which, Information Flow 1: The ground protocol processing unit (1) and the satellite protocol processing unit (2) are mutually cold backups. The ground protocol processing unit (1) is deployed at the ground master station, and the satellite protocol processing unit (2) is deployed at the communication satellite node based on satellite processing. Only one functional unit of the ground protocol processing unit (1) and the satellite protocol processing unit (2) is in working state at the same time. The ground protocol processing unit (1) generates dynamic routing configuration information according to the dynamic routing protocol interaction and sends it to the switching control unit (6) through the satellite-ground feeder link. The satellite protocol processing unit (2) generates routing configuration information in the same way as the ground protocol processing unit (1) and sends the dynamic routing configuration information to the switching control unit (6) through the internal interface of the communication satellite node. After receiving the routing configuration information from the ground protocol processing unit (1) or the satellite protocol processing unit (2), the switching control unit (6) completes operations including information scheduling, priority management, storage management and protocol adaptation, and generates an internal parameter configuration frame to send to the data exchange unit (7). The data exchange unit (7) stores different configuration information into the corresponding block RAM storage according to the frame type field based on the received internal parameter configuration frame. Information flow 2: The ground management unit (3) generates satellite node payload management information based on the mission planning results and sends it to the switching control unit (6) through the satellite-to-ground feeder link; the switching control unit (6) receives the satellite node payload management information, completes operations including information scheduling, priority management, storage management and protocol adaptation, generates internal parameter configuration frames, and sends them to the data exchange unit (7), baseband processing unit (8) or laser processing unit (9) according to the information type; the data exchange unit (7), baseband processing unit (8) or laser processing unit (9) stores different configuration information into the corresponding block RAM storage according to the frame type field of the received internal parameter configuration frames; Information Flow 3: The ground network control unit (4) and the spaceborne network control unit (5) are mutually hot-backed. The ground network control unit (4) is deployed at the ground master station, and the spaceborne network control unit (5) is deployed at the communication satellite node based on on-board processing. The ground network control unit (4) and the spaceborne network control unit (5) can coexist and switch different application modes according to the remote control command of the communication satellite. The ground network control unit (4) generates information including resource allocation parameters, beam control parameters and port rate parameters according to the small station network access strategy and resource requirements, and sends it to the switching control unit (6) through the satellite-ground feeder link. The spaceborne network control unit (5) generates information including resource allocation parameters, beam control parameters and port rate parameters. The configuration information, including allocation parameters, beam control parameters, and port rate parameters, is sent to the switching control unit (6) through the internal interface of the communication satellite. The switching control unit (6) receives the configuration information from the ground network control unit (4) or the satellite network control unit (5), completes information scheduling, priority management, storage management, and protocol adaptation operations, generates internal parameter configuration frames, and sends them to the baseband processing unit (8) or the laser processing unit (9) according to different types. The baseband processing unit (8) or the laser processing unit (9) stores different configuration information into the corresponding block RAM storage according to the frame type field based on the received internal parameter configuration frames.

2. The onboard switching control device based on onboard processing according to claim 1, characterized in that, The switching control unit (6) consists of a receiving processing unit (6-1), a service scheduling unit (6-2), a memory management unit (6-3), a data processing unit (6-4), a storage management unit (6-5), a data sending unit (6-6), a protocol adaptation unit (6-7), a switching configuration unit (6-8), a baseband processing configuration unit (6-9), a laser processing configuration unit (6-10), and a satellite-to-ground broadcast generation unit (6-11). The receiving and processing unit (6-1) receives the initial information of protocol, management or control from the ground protocol processing unit (1), the spaceborne protocol processing unit (2), the ground management unit (3), the ground network control unit (4) and the spaceborne network control unit (5), and performs frame header and frame content verification on this initial information. If the verification is successful, the initial information is sent to the service scheduling unit (6-2). If the verification fails, the initial information is discarded and the error type is returned. After receiving the initial information from the receiving and processing unit (6-1), the service scheduling unit (6-2) performs fusion processing on the received initial information according to the set algorithm, and extracts the address and type fields. Using the address and type fields as indexes, it extracts the storage information from the memory management unit (6-3), and then performs comparison and aggregation processing on the storage information and the initial information according to the set strategy. Finally, it sends the comparison and aggregation information to the memory management unit (6-3) for storage and to the data processing unit (6-4) for further processing. The memory management unit (6-3) uses address and type fields as indexes to queue, manage, and store information. It can extract stored information based on the index of the business scheduling unit (6-2) and receive the aggregated information from the business scheduling unit (6-2). The memory management unit (6-3) provides parameter configuration information to the data processing unit (6-4), and also periodically sends configuration information storage parameters to the storage management unit (6-5). The data processing unit (6-4) supports two configuration strategies: Strategy 1: Receive processing information from the service scheduling unit (6-2) and generate trigger information configuration parameters according to the trigger-based configuration information generation strategy; Strategy 2: Periodically extract storage information from the memory management unit (6-3) and generate timed information configuration parameters according to the timed configuration information generation strategy. Both configuration strategies can coexist. The data processing unit (6-4) sends the information configuration parameters to the data sending unit (6-6) according to the priority planning strategy. The storage management unit (6-5) receives the configuration information storage parameters from the memory management unit (6-3) and periodically stores the configuration information storage parameters into the corresponding FLASH memory. The data sending unit (6-6) receives the trigger information configuration parameters or timing information configuration parameters from the data processing unit (6-4), fills in the target parameter configuration address information sent by the protocol adaptation unit (6-7) according to the protocol encapsulation format and configuration method, generates an internal parameter configuration frame, and then sends it to the switching configuration unit (6-8), the baseband processing configuration unit (6-9), and the laser processing configuration unit (6-10) respectively according to different parameter types. The protocol adaptation unit (6-7) generates target parameter configuration address information based on the task planning results and sends the target parameter configuration address information to the data sending unit (6-6). The switching configuration unit (6-8) receives the internal parameter configuration frame from the data sending unit (6-6) and sends it to different processing modules of the data switching unit (7) according to different parameter types and target parameter configuration address information. The baseband processing configuration unit (6-9) receives the internal parameter configuration frame from the data transmission unit (6-6) and sends it to different processing modules of multiple baseband processing units (8) according to different parameter types and target parameter configuration address information. The laser processing configuration unit (6-10) receives the internal parameter configuration frame from the data transmission unit (6-6) and sends it to different processing modules of multiple laser processing units (9) according to different parameter types and target parameter configuration address information. The satellite-to-ground broadcast generation unit (6-11) extracts status information parameters from the memory management unit (6-3) periodically according to the set protocol format and software algorithm, generates satellite-to-ground broadcast data frames and satellite-to-ground announcement data frames, and then sends them to the satellite ground user station via different satellite-to-ground links in a broadcast manner.

3. The onboard switching control device based on onboard processing according to claim 1, characterized in that: The aforementioned switching control unit (6) can be implemented using a module hot backup method.

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