Satellite-borne regional interface service system

Through the satellite-based regional interface service system, network adapters are used to realize the nearby services required for satellite internal interfaces, solving the problems of complex cable connections and lack of general design in the existing technology, and realizing the optimization of cable connections and the improvement of information sharing capabilities.

CN119628708APending Publication Date: 2025-03-14SHANGHAI SATELLITE ENG INST

Patent Information

Application Number
CN202411567886.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

The existing satellite internal signal connection system has a large number of cables, resulting in complex system assembly, integration and testing, increasing satellite weight and space overhead, and lacking general and integrated design.

Method used

It provides a satellite-based regional interface service system, which can realize the nearest and centralized services for interface requirements such as telemetry acquisition, remote control command driving, serial communication, etc. through a network adapter, and unified access to the switching network, and unified addressing and addressing based on IP protocol.

Benefits of technology

The connection length of various analog, power, and communication cables is reduced, the cabin-through cable is reduced, the cable connection relationship is optimized, and the level of collection information sharing and control command accessibility are improved.

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Abstract

The invention provides a satellite-borne regional interface service system, which mainly comprises a network adapter consisting of an analog telemetering acquisition circuit, a remote control instruction driving circuit, a power driving circuit, a serial communication circuit, a network interface circuit, a protocol processing circuit and a power conversion circuit, a network adapter is configured in each satellite cabin section to complete external simulation telemetering acquisition, remote control instruction driving, power driving, serial communication and other interface requirements of all single machines in the cabin section, and the network adapters distributed and configured in the cabin sections of the satellite and a network switch form a satellite-borne regionalization interface service system. According to the invention, the nearby connection of simulation, power and communication cables is realized, cabin-penetrating cables are greatly reduced, the cable connection relationship is optimized, and the acquisition information sharing level and the control command access capability are improved through networked interface service.
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Description

Technical Field

[0001] The present invention belongs to the field of satellite-borne electronic equipment connection technology, and specifically relates to a satellite-borne regionalized interface service system, and more particularly to a network adapter and a satellite-borne regionalized interface service system for realizing regionalized, networked, and cable-less nearby services for interface connection functions such as analog telemetry and remote control commands. Background Art

[0002] Satellites generally use data transmission buses and discrete signal lines to collect status, drive control, and transmit data. With the development of technology and changes in demand, the design, routing, and implementation of numerous cables have increased the complexity of system assembly, integration, and testing, increased satellite weight, space overhead, and poor maintainability. The spider-web-like complex signal connections have gradually become one of the obstacles to the development of satellite integration, lightweight, and intelligentization.

[0003] A lot of research has been done to optimize the satellite's internal signal connection system.

[0004] Application No. 201810547745.8 "A Satellite Intelligent Open Integrated Electronic System" discloses a general integrated electronic system architecture, including a central control module, a multi-level bus data conversion module, and a low-speed telemetry acquisition and remote control distribution module. The central control module forwards instructions to the multi-level bus data conversion module via a high-speed bus, and the multi-level bus data conversion module forwards instructions to the low-speed telemetry acquisition and remote control distribution module via a medium-speed bus. The low-speed telemetry acquisition and remote control distribution module forwards instructions to the satellite non-fast real-time control device via a low-speed bus. Command control is achieved through layer-by-layer forwarding of high, medium, and low-speed multi-level networks.

[0005] Application No. 201811392208.7 "An integrated interface control device and a satellite-borne integrated electronic system" discloses an integrated interface control device that realizes data interaction between an integrated electronic management unit and other single machines in the integrated electronic system. It receives the remote control package sent by the management unit through a serial communication unit and routes it to other single machines. It receives the telemetry packaged by other single machines through a serial communication unit and forwards it to the management unit. It can parse the remote control package and send OC instructions to control the power distribution module.

[0006] Application No. 202210044417.2 "Spacecraft Integrated Intelligent Information System", 201620833483.8 "An Integrated Satellite-borne Integrated Electronic System", 201811068725.9 "A Satellite-borne Integrated Electronic System", and 201910755576.1 "A Satellite-borne Intelligent Menu-based Integrated Electronic System" propose a modular design method for functional integration based on the specific satellite integrated electronic function requirements. The integrated electronic stand-alone machine is constructed by various standardized modules, and the modules and stand-alone machines are connected through a bus network.

[0007] Application No. 202311008798.X "Satellite-borne telemetry and remote control communication integrated terminal system" discloses a satellite-borne telemetry and remote control communication integrated terminal system, including an FPGA circuit, an RS422 transmitting circuit, an RS422 receiving circuit, a multi-channel AD parallel conversion circuit, and a multi-channel instruction reverse drive circuit, and has analog telemetry acquisition and remote control instruction drive route expansion functions; data transmission adopts the space data packet format; any RS422 receiving channel can receive space data packets, perform legitimacy checks according to the data packet format requirements, and perform addressing according to the packet sub-header.

[0008] These existing technologies design various types of interface modules in a modular way, provide unified interface services to the outside world, and determine the number of modules based on the total demand for satellite interfaces, which can improve module versatility and optimize cable connection relationships.

[0009] However, from the perspective of cable connection, because there are still a large number of cabin cables, the cable connection relationship is still relatively complex; from the perspective of product universalization, due to the large differences in interface requirements, it is impossible to form a universal stand-alone product; from the perspective of data availability, the degree of customization of data communication physical connections and protocol designs is high, and there is a lack of universal and integrated design. Summary of the invention

[0010] In view of the defects in the prior art, an object of the present invention is to provide a satellite-borne regionalized interface service system.

[0011] A network adapter providing satellite-borne regionalized interface services according to the present invention includes:

[0012] Analog telemetry acquisition circuit: digitally quantize the external multi-channel analog voltage to obtain digitally quantized telemetry data;

[0013] Remote control command driving circuit: sends the received command driving command to the protocol processing circuit; according to the parsed command driving circuit from the protocol processing circuit, the driving circuit outputs a driving signal;

[0014] Power driving circuit: sends the received input power driving command to the protocol processing circuit; outputs the driving signal according to the parsed instruction from the protocol processing circuit;

[0015] Serial communication circuit: performs external multi-channel serial communication, sends the received data input by the onboard single machine to the protocol processing circuit for protocol conversion, and outputs the data after protocol conversion;

[0016] Network interface circuit: periodically outputs packaged data and serves as a network communication interface for the protocol processing circuit;

[0017] Protocol processing circuit: formats and packages the digitally quantized telemetry data, and sends the packaged data to the network interface circuit or to the destination address; parses the command drive command and sends the parsed command to the remote control command drive circuit; parses the input power drive command and sends the parsed command to the power drive circuit.

[0018] Preferably, the network adapter has two hardware redundancy modes: single redundancy and dual redundancy backup. The dual redundancy hardware redundancy supports dual-machine hot backup and cold backup working modes.

[0019] The single-redundancy hardware redundancy means that the network adapter has only one set of hardware circuits and has two independent network interfaces, which are connected to the host and backup machines of the network switch respectively;

[0020] The dual-redundancy hardware redundancy, the network adapter includes two independent hardware circuits of the host and the backup machine to realize dual redundant backup, the host and the backup machine of the network adapter respectively have two independent network interfaces, which are respectively connected to the host and the backup machine of the network switch.

[0021] Preferably, in the dual-redundancy hardware redundancy mode, for the telemetry acquisition function, one analog telemetry input is divided into two paths and respectively acquired and quantified by the network adapter host and the backup machine; for the remote control command drive function, the network adapter host and the backup machine respectively have independent remote control command drive circuits, which respectively control the drive and combine the output; for the power drive function, the network adapter host and the backup machine respectively have independent power drive circuits, which respectively control the drive and combine the output.

[0022] Preferably, the network adapter receives data through a network interface, performs MAC data frame and IP data packet analysis, and determines and processes the data according to the terminal number of the destination IP address;

[0023] If it is a local health monitoring data packet, continue to parse the UDP data packet and set the health status according to the space data packet definition;

[0024] If it is a telemetry acquisition command data packet, continue to parse the UDP data packet and set the telemetry status according to the spatial data packet definition;

[0025] If it is a remote control command data packet, continue to parse the UDP data packet and drive the remote control command according to the spatial data packet definition;

[0026] If it is a power-driven data packet, continue to parse the UDP data packet and perform power driving according to the spatial data packet definition;

[0027] If the data packet is forwarded for serial communication, the UDP data packet will continue to be parsed, and the spatial data packet will be forwarded according to the serial communication interface indicated by the terminal number.

[0028] Preferably, the network adapter sends data through the network interface, and needs to process the UDP data packet, IP data packet, and MAC data frame;

[0029] If it is a local health status data packet, the data packet is encapsulated according to the preset local health status function destination IP address, or the data packet is encapsulated according to the destination IP address required in the input local health status request command, and output through the network interface;

[0030] If it is a telemetry collection data packet, the data packet is encapsulated according to the preset telemetry collection function destination IP address, or the data packet is encapsulated according to the destination IP address required in the input telemetry collection request command, and output through the network interface;

[0031] If the data packet is forwarded for serial communication, the data packet is encapsulated according to the index relationship between the application process identifier in the spatial data packet header and the destination IP address of the data packet of this type, and is output through the network interface.

[0032] Preferably, the IP address field includes at least a subnet number field and a terminal number field;

[0033] The host and backup machines of the network adapter are respectively assigned a unique subnet number within the satellite;

[0034] The local health monitoring, telemetry collection, remote control command, power drive function of the network adapter and each serial communication interface are assigned a unique terminal number in the subnet; when two-wire or three-wire synchronous communication is adopted, a group of synchronous communication interfaces are assigned a terminal number;

[0035] For the dual-redundancy hardware redundant network adapter, when the serial communication interfaces of the host and the standby are combined for output, the terminal numbers of the redundant serial communication interfaces are the same.

[0036] According to the present invention, a satellite-borne regionalized interface service system includes: a network adapter and a network switch; the network adapter is configured in each compartment of the satellite;

[0037] The network adapter is used by all the single machines in the satellite module. It connects to the network switch through the network adapter in the satellite module through the network interface and communicates with the onboard single machine.

[0038] Preferably, the network adapter adopts the network adapter providing satellite-borne regionalized interface service as claimed in any one of claims 1 to 6.

[0039] Preferably, the onboard single machine includes: an onboard integrated electronic computer, an attitude and orbit control computer, a payload management and control computer, and a payload processing computer.

[0040] Preferably, the network adapter provides interface services for all single machines in the satellite compartment, including: analog telemetry acquisition, remote control command drive, power drive, and serial communication.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. The present invention provides local and centralized services for analog telemetry acquisition, remote control command drive, and serial communication needs according to the satellite compartment, which is beneficial to reducing the connection length of various analog, power, and communication cables, and reducing the number of cables passing through the compartment;

[0043] 2. The present invention integrates analog telemetry acquisition, remote control command drive, and serial communication requirements into a switching network, and realizes networking, definable and flexible transmission of analog, power, and communication data based on unified addressing and addressing of IP protocol;

[0044] 3. In the present invention, the onboard computer and application software can obtain the analog telemetry collection, remote control command drive, and serial communication information of each compartment of the entire satellite on demand and in parallel through the exchange network and network adapter. With the development trend of increasing complexity of application software and increasing frequency of satellite on-orbit software changes, the application software's requirements for data accessibility can be better met. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0046] Figure 1 A schematic diagram of the functional composition of the network adapter of the present invention;

[0047] Figure 2 This is a schematic diagram of the satellite-borne regionalized interface service system of the present invention;

[0048] Figure 3 A schematic diagram of protocol conversion between a network interface and a serial communication interface of the present invention;

[0049] Figure 4 The figure is a comparison diagram of the serial communication interface terminal numbering two transmit and one receive and one transmit and two receive of the present invention. DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0051] The present invention relates to a satellite-borne regionalized interface service method and system, which is composed of an analog telemetry acquisition circuit, a remote control command drive circuit, a power drive circuit, a serial communication circuit, a network interface circuit, a protocol processing circuit and a power conversion circuit to form a network adapter. A network adapter is configured in each satellite compartment to complete the external analog telemetry acquisition, remote control command drive, power drive, serial communication and other interface requirements of all single machines in the compartment. The network adapters and network switches distributed in each compartment of the satellite form a satellite-borne regionalized interface service system. The present invention realizes the nearby connection of analog, power and communication cables, greatly reduces the cables passing through the compartment, optimizes the cable connection relationship, and improves the level of collection information sharing and control command accessibility through networked interface services.

[0052] The present invention is described in detail below.

[0053] A satellite-borne regionalized interface service system provided by the present invention includes a network adapter and a network switch; the network adapter is configured in each compartment of the satellite.

[0054] The network adapter is mainly composed of analog telemetry acquisition circuit, remote control command drive circuit, power drive circuit, serial communication circuit, network interface circuit, protocol processing circuit and power conversion circuit. Figure 1 The specific circuits and functions include:

[0055] (1) The network adapter collects analog telemetry of the satellite-borne single machine in the region through the analog telemetry collection circuit, realizes the digital quantization of the external multi-channel analog voltage under the control of the protocol processing circuit, and formats and encapsulates the collected and quantified telemetry data by the protocol processing circuit, and periodically outputs and sends the telemetry data through the network interface circuit, or sends the telemetry data to the destination address according to the request command input by the network interface. The typical formatting and encapsulation method is the space data packet protocol defined by the CCSDS standardization organization. The analog telemetry collection circuit usually supports active voltage, current or passive state quantity collection.

[0056] (2) The network adapter uses the remote control command drive circuit to drive other satellite-borne units in the area. The command drive command is input through the network interface, and the protocol processing circuit parses the command. Under the control of the protocol processing circuit, the command drive circuit outputs the drive signal.

[0057] (3) The network adapter uses the power drive circuit to power other satellite-borne units in the area. The power drive command is input through the network interface, and the protocol processing circuit parses the command. Under the control of the protocol processing circuit, the power drive circuit outputs the drive signal.

[0058] (4) The network adapter conducts serial communication with other onboard units in the region through the serial communication circuit and realizes external multi-channel serial communication under the control of the protocol processing circuit. The network adapter receives input data from other onboard units through the serial communication interface circuit and forwards the output data through the network interface after protocol conversion; it receives input data through the network interface and forwards the output data through the serial communication interface after protocol conversion.

[0059] (5) The network adapter is connected and communicates with the network switch through the network interface circuit, and the protocol processing circuit implements the protocol processing of the network interface.

[0060] (6) Protocol processing circuit, which implements network adapter data communication protocol processing and various circuit logic control.

[0061] (7) Power conversion circuit, which provides the required power for each circuit in the network adapter.

[0062] A network adapter is configured in each satellite module to complete the interface requirements of all single machines in the module for external analog telemetry acquisition, remote control command drive, power drive, serial communication, etc. The network adapters and network switches distributed in various modules of the satellite form a satellite-borne regionalized interface service system, which enables the local connection of a large number of analog, power, and communication cables on the satellite, greatly reduces the number of cables passing through the module, and optimizes the cable connection relationship.

[0063] The onboard integrated electronic computer, attitude and orbit control computer, payload control computer, payload processing computer and other onboard single machines are connected to the network switch through the network interface, such as Figure 2 As shown, various computers can communicate with the network adapter through the network switching system, improving the level of information sharing and control command accessibility of the entire star.

[0064] In order to ensure system reliability and flexibility, the network adapter supports two hardware redundancy modes: single redundancy and dual redundancy. Dual redundancy hardware redundancy supports dual-machine hot backup and cold backup working modes.

[0065] In single-redundancy hardware redundancy, there is only one set of hardware circuits in the network adapter. However, in order to adapt to the dual-redundancy switching network, two independent network interfaces are required to connect the host and backup machines of the network switch respectively.

[0066] In case of dual-redundancy hardware redundancy, the network adapter contains two independent hardware circuits, the host and the backup, to realize dual redundant backup. The host and the backup of the network adapter each have two independent network interfaces, which are connected to the host and the backup of the network switch respectively. For the telemetry acquisition function, one analog telemetry input is divided into two channels, which are collected and quantified by the host and the backup of the network adapter respectively; for the remote control command drive function, the host and the backup of the network adapter each have independent remote control command drive circuits, which control the drive and combine the output respectively; for the power drive function, the host and the backup of the network adapter each have independent power drive circuits, which control the drive and combine the output respectively.

[0067] The serial communication circuit of the network adapter includes RS422, LVDS, and TLK2711 serial communication interface circuits. The clock, gating, and data configuration of the interface circuit supports asynchronous serial communication interfaces and synchronous serial communication interfaces. Synchronous serial communication interfaces include two-wire clock and data synchronous communication, and three-wire clock, data, and gating synchronous communication. The network interface usually uses an Ethernet interface circuit, adopts the UDP / IP protocol model, and the application layer adopts the space data packet protocol; the network adapter serial communication interface and the network interface perform bidirectional data transmission based on the space data packet protocol, such as Figure 3 That is to say, the network layer IP protocol of Ethernet is used to realize the unified addressing of the whole network, which is convenient for the unified addressing of the application data of the space data packet in the whole network, and the serial communication interface is used to realize the regional transmission of the space data packet, which is compatible with the processing software of the traditional single-machine serial communication interface.

[0068] In order to distinguish between Ethernet networks and serial communication networks, and to implement IP-based addressing and addressing, when defining the IP address field, it is required to include at least the subnet number field and the terminal number field to uniquely locate the device address in the network. The host and standby machines of the network adapter are independent Ethernet terminals, and are each assigned a unique subnet number within the satellite. The local health monitoring, telemetry collection, remote control instructions, and power drive functions of the network adapter are assigned a unique terminal number within the subnet to identify the functional services within the subnet. Each serial communication interface is assigned a unique terminal number within the subnet to identify the communication interface within the subnet. The following table gives an example of address definition.

[0069] Table 1 IP address terminal number field definition example

[0070] name Terminal Number Field Local health monitoring 0x 00 Telemetry Collection 0x 01 Remote control commands 0x 02 RS422 channel 0x 10~0x 1F LVDS Channel 0x 20~0x 2F TLK2711 Channel 0x30~0x3F

[0071] It should be noted that when two-wire or three-wire synchronous communication is used, a group of synchronous communication interfaces is assigned a terminal number, for example, three-wire clock, data, and gated synchronous communication are assigned a terminal number. When the serial communication interface is dual-redundant, a one-transmit-two-receive or two-transmit-one-receive circuit is used. In order to ensure that both the host and the backup machine can receive data packets, the terminal numbers of the redundant serial communication interfaces are the same, such as Figure 4 shown.

[0072] From the perspective of communication data processing, the network adapter receives data through the network interface, parses the MAC data frame and IP data packet, and determines and processes it according to the terminal number of the destination IP address, specifically including:

[0073] (1) If it is a local health monitoring data packet, continue to parse the UDP data packet and set the health status of the network adapter itself according to the application layer space data packet definition;

[0074] (2) If it is a telemetry collection command data packet, continue to parse the UDP data packet and set the status of the telemetry collection function according to the application layer space data packet definition;

[0075] (3) If it is a remote control command data packet, continue to parse the UDP data packet and drive the remote control command according to the application layer space data packet definition;

[0076] (4) If it is a power-driven data packet, continue to parse the UDP data packet and perform power driving according to the application layer space data packet definition;

[0077] (5) If the data packet is forwarded for serial communication, the UDP data packet is parsed and the application layer space data packet is forwarded according to the serial communication interface indicated by the terminal number.

[0078] The network adapter sends data through the network interface, which requires grouping UDP data packets, IP data packets, and MAC data frames, including:

[0079] (1) If it is a local health status data packet, the data packet may be encapsulated according to a preset local health status function destination IP address, or may be encapsulated according to a destination IP address required in an input local health status request command, and output through a network interface;

[0080] (2) If it is a telemetry collection data packet, the data packet can be encapsulated according to a preset telemetry collection function destination IP address, or according to a destination IP address required in an input telemetry collection request command, and output through a network interface;

[0081] (3) If the data packet is forwarded for serial communication, since only the application process identifier in the packet header can be used for path or address identification in the spatial data packet transmitted by serial communication, in order to realize the flexible transmission of data packets in the Ethernet network, an index table between the application process identifier and the destination IP address of the data packet is established in the network adapter. After receiving the spatial data packet, the network adapter determines the destination IP address according to the index table, performs protocol encapsulation according to the Ethernet format requirements, and outputs it through the network interface.

[0082] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A network adapter providing satellite-based regionalized interface services, characterized in that: include: Analog telemetry acquisition circuit: digitally quantize the external multi-channel analog voltage to obtain digitally quantized telemetry data; Remote control command driving circuit: sends the received command driving command to the protocol processing circuit; driving the circuit to output a driving signal according to the parsed instruction from the protocol processing circuit; Power driving circuit: sending the received input power driving command to the protocol processing circuit; Outputting a driving signal according to the parsed instruction from the protocol processing circuit; Serial communication circuit: performs external multi-channel serial communication, sends the received data input by the onboard single machine to the protocol processing circuit for protocol conversion, and outputs the data after protocol conversion; Network interface circuit: periodically outputs packaged data and serves as a network communication interface for the protocol processing circuit; Protocol processing circuit: formats and packages the digitally quantized telemetry data, and sends the packaged data to the network interface circuit or to the destination address; parses the command drive command and sends the parsed command to the remote control command drive circuit; parses the input power drive command and sends the parsed command to the power drive circuit.

2. The network adapter for providing satellite-based regionalized interface services according to claim 1, characterized in that: The network adapter has two hardware redundancy modes: single redundancy and dual redundancy backup. The dual redundancy hardware redundancy supports dual-machine hot backup and cold backup working modes. The single-redundancy hardware redundancy means that the network adapter has only one set of hardware circuits and has two independent network interfaces, which are connected to the host and backup machines of the network switch respectively; The dual-redundancy hardware redundancy, the network adapter includes two independent hardware circuits of the host and the backup machine to realize dual redundant backup, the host and the backup machine of the network adapter respectively have two independent network interfaces, which are respectively connected to the host and the backup machine of the network switch.

3. The network adapter for providing satellite-based regionalized interface services according to claim 2, characterized in that: In the dual-redundancy hardware redundancy mode, for the telemetry acquisition function, one analog telemetry input is divided into two paths and collected and quantified by the network adapter host and the backup machine respectively; for the remote control command drive function, the network adapter host and the backup machine respectively have independent remote control command drive circuits, which respectively control the drive and combine the output; for the power drive function, the network adapter host and the backup machine respectively have independent power drive circuits, which respectively control the drive and combine the output.

4. The network adapter for providing satellite-based regionalized interface services according to claim 1, characterized in that: The network adapter receives data through the network interface, parses the MAC data frame and IP data packet, and determines the processing according to the terminal number of the destination IP address; If it is a local health monitoring data packet, continue to parse the UDP data packet and set the health status according to the space data packet definition; If it is a telemetry acquisition command data packet, continue to parse the UDP data packet and set the telemetry status according to the spatial data packet definition; If it is a remote control command data packet, continue to parse the UDP data packet and drive the remote control command according to the spatial data packet definition; If it is a power-driven data packet, continue to parse the UDP data packet and perform power driving according to the spatial data packet definition; If the data packet is forwarded for serial communication, the UDP data packet will continue to be parsed, and the spatial data packet will be forwarded according to the serial communication interface indicated by the terminal number.

5. The network adapter for providing satellite-based regionalized interface services according to claim 1, characterized in that: The network adapter sends data through the network interface, which requires grouping UDP data packets, IP data packets, and MAC data frames; If it is a local health status data packet, the data packet is encapsulated according to the preset local health status function destination IP address, or the data packet is encapsulated according to the destination IP address required in the input local health status request command, and output through the network interface; If it is a telemetry collection data packet, the data packet is encapsulated according to the preset telemetry collection function destination IP address, or the data packet is encapsulated according to the destination IP address required in the input telemetry collection request command, and output through the network interface; If the data packet is forwarded for serial communication, the data packet is encapsulated according to the index relationship between the application process identifier in the spatial data packet header and the destination IP address of the data packet of this type, and is output through the network interface.

6. The network adapter for providing satellite-based regionalized interface services according to claim 4 or 5, characterized in that: The IP address field at least includes a subnet number field and a terminal number field; The host and backup machines of the network adapter are respectively assigned a unique subnet number within the satellite; The local health monitoring, telemetry collection, remote control command, power drive function of the network adapter and each serial communication interface are assigned a unique terminal number in the subnet; when two-wire or three-wire synchronous communication is adopted, a group of synchronous communication interfaces are assigned a terminal number; For the dual-redundancy hardware redundant network adapter, when the serial communication interfaces of the host and the standby are combined for output, the terminal numbers of the redundant serial communication interfaces are the same.

7. A satellite-borne regionalized interface service system, characterized in that: include: Network adapters, network switches; Network adapters are located in various modules of the satellite; The network adapter is used by all the single machines in the satellite module. It connects to the network switch through the network adapter in the satellite module through the network interface and communicates with the onboard single machine.

8. The satellite-borne regionalized interface service system according to claim 7, characterized in that: The network adapter is the network adapter providing satellite-based regionalized interface service according to any one of claims 1 to 6.

9. The satellite-borne regionalized interface service system according to claim 7, characterized in that: The onboard single machine includes: an onboard integrated electronic computer, an attitude and orbit control computer, a payload management and control computer, and a payload processing computer.

10. The satellite-borne regionalized interface service system according to claim 7, characterized in that: The network adapter provides interface services for all units in the satellite module, including: analog telemetry acquisition, remote control command drive, power drive, and serial communication.

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