Multi-satellite man-machine interaction method for satellite-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack

Abstract

The invention discloses a multi-satellite man-machine interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and an IP (Internet Protocol) stack, which is characterized in that on the basis of a satellite-to-ground high-speed uplink and downlink and high-speed routing communication mechanism and a satellite-to-ground IP stack Ethernet interconnection architecture, a satellite terminal (multi-satellite) is used as a service side; the ground end is an innovative network interaction type multi-satellite man-machine interaction control mode of a client side. Different from a traditional instruction and telemetering interaction satellite use mode, a brand-new satellite interaction mode is constructed through IP network thinking, and constellation management, use and learning cost of users and development cost of development users are greatly reduced; the satellite-ground / inter-satellite low-speed and low-efficiency satellite-ground measurement and control communication interaction method breaks through the traditional satellite-ground / inter-satellite low-speed and low-efficiency satellite-ground measurement and control communication interaction mode, provides support for future constellation satellite-borne intellectualization, ground constellation management and control intellectualization expansion and space-ground intellectualization integration with Internet thinking and based on a satellite-ground / inter-satellite high-speed IP protocol stack communication mechanism, and has important engineering application value.

Description

Technical Field

[0001] The invention relates to a multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack, and belongs to the field of satellite system design. Background Art

[0002] As the tasks of individual satellites become more and more complex, the processing systems on the satellites are also becoming more and more complex, and the amount of data processed is also increasing. At the same time, remote sensing, communications, and navigation constellations are also developing rapidly. The processes of inter-satellite interaction, ground interaction, and constellation management are also becoming increasingly complex and cumbersome. It is urgent to improve the satellite-to-ground / inter-satellite interaction mechanism and efficiency to adapt to the future development trends of satellites such as space-ground integration, intelligence, and large-scale constellations. Traditional satellite-to-ground measurement and control communications and inter-satellite communications are limited by link bandwidth, and the communication efficiency is low. In addition, they usually use remote control commands, telemetry, and other responsive data communication methods of the CCSDS standard space data protocol. The data interaction efficiency is low, the satellite usage mode is cumbersome, the constellation management process is complex, and the human-computer interaction experience lags far behind the human-computer interaction design in the current industrial field, and cannot keep up with the current development trends of satellite intelligence, large-scale constellations, and space-ground integration. In addition, with the rapid development of current satellite-to-ground high-speed uplink and downlink communication technology and inter-satellite communication technology, Mbps-level communication rates have been used by more and more satellites; and with the improvement of semiconductor technology and research on on-orbit reliability technology, such as ARM, FPGA, GPU, NPU and other processing chips launched by TI, NVIDIA, AMD, Cambrian and other companies, the use of industrial-grade chips on-orbit has made satellite on-board processing capabilities increasingly stronger; in addition, reliability reinforcement technologies based on on-orbit applications of industrial-grade chips, such as metal casings, software and hardware multi-mode redundancy and other technologies have also been maturely applied. In general, whether from the urgent need to improve the mechanism and efficiency of satellite-to-ground / inter-satellite interaction, or from the maturity of multiple aspects such as satellite-to-ground high-speed links, inter-satellite high-speed communication links, on-board processing capabilities, and on-orbit reliability applications of industrial-grade chips, on-satellite high-speed network communication based on the IP protocol stack has become a good foundation for the next generation of satellite-to-ground / inter-satellite interaction modes in the future. The present invention introduces IP network thinking to realize a multi-satellite human-computer interaction mode based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites and IP protocol stack, which greatly improves the efficiency of satellite-to-ground / inter-satellite interaction, realizes the management and use of large-scale constellations, and supports the future development of satellite intelligence and space-ground integration technology. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack in view of the deficiencies in the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack, which relies on the satellite-to-ground high-speed uplink and downlink and high-speed routing communication mechanism and the satellite-to-ground IP protocol stack Ethernet interconnection architecture to construct an innovative network interaction form multi-satellite human-computer interaction control mode with the satellite end (multiple satellites) as the service side and the ground end as the client side.

[0006] The architecture of the system in the multi-satellite human-computer interaction control mode of this innovative network interaction form includes: satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines, inter-satellite routing systems, high-speed uplink and downlink ground stations and ground human-computer interaction terminals; the connection between systems is as follows: satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines and inter-satellite routing systems are connected to each other through inter-satellite high-speed communication (i.e., through inter-satellite IP communication machines), satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines are connected up and down with high-speed uplink and downlink ground stations through satellite-to-ground high-speed communication (i.e., through high-speed IP communication machines), and high-speed uplink and downlink ground stations are connected to ground human-computer interaction terminals through Ethernet.

[0007] The data protocol relationship in the multi-satellite human-computer interaction control mode of this innovative network interaction form is as follows: the application layer of the ground human-computer interaction terminal and the system layer of the ground human-computer interaction terminal communicate with the data protocol of Ethernet frames, the system layer of the ground human-computer interaction terminal and the high-speed uplink and downlink ground station communicate with the data protocol of Ethernet frames packaged with CCSDS frames, the high-speed uplink and downlink ground station and the high-speed IP communication machine of at least one satellite (such as satellite 1) communicate with the data protocol of Ethernet frames packaged with CCSDS frames, the high-speed IP communication machine of the satellite (satellite 1) communicates with the intersatellite IP communication machine of the satellite (satellite 1) using the data protocol of Ethernet frames, the intersatellite IP communication machine of the satellite (satellite 1) and the intersatellite routing system (which also has an intersatellite IP communication machine) communicate with the data protocol of Ethernet frames packaged with CCSDS frames, the intersatellite IP communication machine of the intersatellite routing system communicates with the intersatellite IP communication machine of other satellites (such as satellite n) using the data protocol of Ethernet frames packaged with CCSDS frames, and the intersatellite IP communication machine of the other satellite (satellite n) communicates with the onboard intelligent subsystem of the satellite (satellite n) using the data protocol of Ethernet frames.

[0008] In this technical solution, compared with traditional high-speed communication machines, the high-speed IP communication machine, in addition to the traditional satellite-to-ground communication capabilities, also has the ability to convert uplink CCSDS frames into Ethernet frames and convert downlink Ethernet frames into CCSDS frames; compared with traditional intersatellite communication machines, the intersatellite IP communication machine, in addition to the traditional radio frequency module and modulation and demodulation capabilities, also has intersatellite communication capabilities above the Mbps level, and has the ability to convert intersatellite CCSDS frames and Ethernet frames into each other.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. This invention is different from the traditional satellite usage mode of command and telemetry interaction. It uses IP network thinking to build a new satellite interaction mode, which greatly reduces the user's constellation management and use, learning costs, and development costs of users;

[0011] 2. This invention breaks the traditional low-speed and low-efficiency satellite-to-ground / inter-satellite satellite-to-ground measurement and control communication interaction mode, and provides multimedia (sound / image / text / video / tactile) collaborative interaction support for future constellation human-computer interaction with Internet thinking;

[0012] 3. The present invention is based on the satellite-to-ground / inter-satellite high-speed IP protocol stack communication mechanism, providing support for future satellite-borne intelligence of constellations, intelligent expansion of ground constellation management and control, and intelligent integration of the earth and the sky. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the architecture of a multi-satellite human-computer interaction mode instance based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack;

[0014] Figure 2 It is a schematic diagram of the interactive interface for in-orbit update automatic deployment tasks based on a multi-satellite human-computer interaction mode of high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack.

[0015] Figure 3 It is a protocol relationship diagram of a multi-satellite human-computer interaction mode based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack; Specific implementation plan

[0016] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 The invention is a schematic diagram of an example architecture of a multi-satellite human-computer interaction mode based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack, mainly comprising: a system consisting of satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines, an inter-satellite routing system, a high-speed uplink and downlink ground station and a ground human-computer interaction terminal; the connection between the systems is as follows: the satellites [1-13] including high-speed IP communication machines and inter-satellite IP communication machines and the inter-satellite routing system are connected through inter-satellite high-speed communication (inter-satellite IP communication machines); the satellites [1-13] including high-speed IP communication machines and inter-satellite IP communication machines are connected up and down with the high-speed uplink and downlink ground station through satellite-to-ground high-speed communication; and the high-speed uplink and downlink ground station is connected to the ground human-computer interaction terminal through Ethernet.

[0018] Figure 2It is a schematic diagram of the interactive interface of the on-orbit update automatic deployment task based on the multi-satellite human-computer interaction mode of high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack. The figure shows the interactive interface of the on-orbit update automatic deployment task of the constellation A13 satellite developed based on the BS software architecture. Here, the traditional remote control command injection and telemetry information feedback are abandoned, and the browser is used to log in to the satellite, access the satellite and subsystem in the form of IP address, select the file, and click to upload, so as to quickly and concisely complete the on-orbit update automatic deployment task.

[0019] Figure 3 It is a multi-satellite human-computer interaction mode protocol relationship diagram based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites and IP protocol stack:

[0020] The application layer of the ground human-computer interaction terminal and the system layer of the ground human-computer interaction terminal communicate with each other using the data protocol of Ethernet frames. The system layer of the ground human-computer interaction terminal and the high-speed uplink and downlink ground station communicate with each other using the data protocol of Ethernet frames packaged in CCSDS frames. The high-speed uplink and downlink ground station and the satellite 1 high-speed IP communicator communicate with each other using the data protocol of Ethernet frames packaged in CCSDS frames. The satellite 1 high-speed IP communicator and the satellite 1 intersatellite IP communicator communicate with each other using the data protocol of Ethernet frames. The satellite 1 intersatellite IP communicator and the intersatellite routing system intersatellite IP communicator communicate with each other using the data protocol of Ethernet frames packaged in CCSDS frames. The intersatellite routing system intersatellite IP communicator and the satellite n intersatellite IP communicator communicate with each other using the data protocol of Ethernet frames packaged in CCSDS frames. The satellite n intersatellite IP communicator and the intelligent subsystem on satellite n communicate with each other using the data protocol of Ethernet frames.

[0021] The following is a detailed description of an application example of a multi-satellite human-computer interaction mode based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack:

[0022] Each satellite onboard subsystem in the constellation can use a processor based on the ARM Cortex-A series and equipped with an embedded Linux operating system, supporting a single system operating on an IP network. Here, it is assumed that a system of a 13-satellite constellation is taken as an example, and the onboard routing system can be implemented by a satellite dedicated to routing functions; in addition, the application layers of each satellite in the constellation are connected through the routing star through an Ethernet connection, so that all onboard subsystems are connected to the Ethernet through the onboard switch, and an Ethernet connection is also built with the ground at the application layer. For each satellite and the ground, it is a node with an IP address in the Ethernet network. In addition, the satellite constellation passes through the measurement and control coverage of the high-speed uplink and downlink ground station one by one in sequence, so as long as one satellite enters the corresponding measurement and control range, all satellites in the constellation are within the reachable range of the network through the network. Of course, multiple high-speed uplink and downlink ground stations are allowed, and multiple satellites are in the corresponding measurement and control range at the same time, which does not affect the architecture of the satellite network.

[0023] The above architecture converts the uplink and downlink data CCSDS frames and Ethernet frames through high-speed IP communication machines on the satellite side, which shields the parsing and framing of CCSDS frames for the satellite subsystems. The satellite subsystems only communicate based on Ethernet frames and play the role of the server relative to the ground side; at the same time, the high-speed IP communication machine is required to have the parsing and framing capabilities of CCSDS frames / Ethernet frames in addition to the traditional high-speed uplink and downlink communication capabilities above Mbps. The high-speed IP communication machine can be implemented by FPGA. Compared with traditional intersatellite communication machines, in addition to traditional RF modules and modulation and demodulation capabilities, intersatellite IP communication machines also have intersatellite communication capabilities above Mbps level, and have the ability to convert intersatellite CCSDS frames and Ethernet frames. This also shields the CCSDS frame underlying protocol communication between satellites, and finally realizes that the communication between the satellite and the satellite application layer is based on the network communication of the IP protocol stack. Intersatellite IP communication machines can also be implemented by FPGA.

[0024] On the ground side, the high-speed uplink and downlink ground station is a high-speed uplink and downlink communication device with a communication rate of more than Mbps in the current conventional sense. The ground human-computer interaction terminal has the ability to parse and frame CCSDS frames / Ethernet frames. At the same time, it plays the role of the client side relative to the satellite side, and is in the form of a client (CS architecture) or browser (BS architecture) software architecture. Through a friendly human-computer interaction interface, the interaction interface here is more task-oriented and abstract than the traditional remote control and telemetry interface, rather than an "instruction-telemetry-instruction-telemetry..." type of interaction logic, which greatly reduces the user's understanding of satellite design. Starting from the top-level task, it realizes the development, debugging, control, and use of satellites. At the same time, through the concept of IP networking, each satellite is equivalent to a node in the ground network, thus providing effective support for future intelligence and integration of the earth and the sky.

[0025] Taking the automatic deployment of on-orbit updates as an example, the following describes the interaction process and data protocol relationship of a multi-satellite human-computer interaction mode based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites, and IP protocol stack. Figure 2 As shown in the figure, when the "xx constellation A13 satellite ship identification algorithm 2-v2.0" in-orbit update automatic deployment task is generated, the user first logs in to the corresponding account, obtains the corresponding permissions, then logs in to the XX satellite, obtains the satellite control permission, and then clicks the plus sign to obtain the file to be uploaded, and then clicks the upload button to start uploading the file. At this time, the ground side initiates the task as the client side, the xx constellation A1 satellite and the routing satellite serve as link transfer nodes, and the xx constellation A13 satellite receives and executes the task as the service side. The uploaded information is displayed in the status bar. The entire operation process is no different from the operation between two network terminals on the ground. It is simple and easy to understand, and the learning cost is low. Figure 3As shown, during the entire file upload process, the file is first disassembled by the ground human-computer interaction terminal application layer and combined into an "Ethernet frame-file" package and sent to the ground human-computer interaction terminal system layer. The ground human-computer interaction terminal system layer then disassembles the Ethernet frame and sub-packets it according to the CCSDS frame into a "CCSDS frame-Ethernet frame-file" package, which is sent to the xx constellation A1 star high-speed uplink and downlink ground station. The high-speed uplink and downlink ground station sends the "CCSDS frame-Ethernet frame-file" package to the high-speed IP communication machine on the xx constellation A1 star through a traditional radio frequency signal. The xx constellation A1 star high-speed IP communication machine strips the CCSDS frame protocol from the "CCSDS frame-Ethernet frame-file" package to form a "CCSDS frame-Ethernet frame-file" package. " package is sent to the inter-satellite IP communication machine on the A1 star of the xx constellation. The inter-satellite IP communication machine on the A1 star of the xx constellation divides the packets into "CCSDS frame-Ethernet frame-file" packages according to the CCSDS frame and sends them to the inter-satellite IP communication machine of the routing star. The inter-satellite IP communication machine of the routing star sends the "CCSDS frame-Ethernet frame-file" to the inter-satellite IP communication machine on the A13 star of the xx constellation. The inter-satellite IP communication machine on the A13 star of the xx constellation removes the CCSDS frame protocol from the "CCSDS frame-Ethernet frame-file" package, forms an "Ethernet frame-file" package and sends it to the intelligent subsystem of the A13 star of the xx constellation. The intelligent subsystem then assembles the "Ethernet frame-file" package into the recovery file according to the file protocol.

[0026] The present invention is different from the traditional satellite usage mode of command and telemetry interaction. It uses IP network thinking to construct a new satellite interaction mode, which greatly reduces the user's constellation management and usage, learning costs and development costs of users; it breaks the traditional low-speed and inefficient satellite-to-ground / inter-satellite satellite-to-ground measurement and control communication interaction mode, and uses Internet thinking to provide multimedia (sound / image / text / video / touch) collaborative interaction support for future constellation human-computer interaction; based on the satellite-to-ground / inter-satellite high-speed IP protocol stack communication mechanism, it provides support for future constellation onboard intelligence, ground constellation management and control intelligent expansion, and space-ground intelligent integration, and has important engineering application value.

[0027] The above description of the disclosed examples enables professionals and technicians in the field to implement or use the present invention. Various modifications to this example will be obvious to professionals and technicians in the field. Defined herein is only an example of a multi-satellite human-computer interaction mode based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack of the present invention, but the increase and decrease in the number of on-board subsystems and constellation satellites should fall within the protection scope of the corresponding claims of the present invention, and the selection of types of processors and operating systems, bus forms, interactive interface modifications, etc. should also fall within the protection scope of the corresponding claims of the present invention. Therefore, the present invention will not be limited to the example shown in this article, but will conform to the widest scope consistent with the principles disclosed herein.

Claims

1. A multi-satellite human-computer interaction method based on high-speed uplink and downlink between satellites and the ground, high-speed routing between satellites and IP protocol stack, characterized in that: It is an innovative network interaction form and multi-satellite human-computer interaction control mode built on the basis of high-speed uplink and downlink communication mechanism between satellite and ground, as well as the satellite-ground IP protocol stack Ethernet interconnection architecture, with multiple satellites as the service side and the ground side as the client side.

2. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 1, characterized in that: The architecture of the system in the innovative network interaction form multi-satellite human-computer interaction control mode includes: satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines, an inter-satellite routing system, a high-speed uplink and downlink ground station and a ground human-computer interaction terminal; the connection between the systems is as follows: the satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines and the inter-satellite routing system are connected through the inter-satellite high-speed communication of the inter-satellite IP communication machine, the satellites [1-n] including high-speed IP communication machines and inter-satellite IP communication machines and the high-speed uplink and downlink ground station are connected up and down through the high-speed IP communication machine satellite-to-ground high-speed communication, and the high-speed uplink and downlink ground station is connected to the ground human-computer interaction terminal through Ethernet.

3. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 2, characterized in that: The data protocol relationship in the innovative network interaction form multi-satellite human-computer interaction control mode is as follows: the application layer of the ground human-computer interaction terminal and the system layer of the ground human-computer interaction terminal communicate with each other using the data protocol of Ethernet frames, the system layer of the ground human-computer interaction terminal and the high-speed uplink and downlink ground station communicate with each other using the data protocol of Ethernet frames packaged with CCSDS frames, the high-speed uplink and downlink ground station and at least one satellite's high-speed IP communication machine communicate with each other using the data protocol of Ethernet frames packaged with CCSDS frames, the high-speed IP communication machine of the satellite communicates with the intersatellite IP communication machine of the satellite using the data protocol of Ethernet frames, the intersatellite IP communication machine of the satellite communicates with the intersatellite routing system using the data protocol of Ethernet frames packaged with CCSDS frames, the intersatellite routing system communicates with the intersatellite IP communication machines of other satellites using the data protocol of Ethernet frames packaged with CCSDS frames, and the intersatellite IP communication machines of other satellites communicate with their onboard intelligent subsystems using the data protocol of Ethernet frames.

4. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 2, characterized in that: In addition to the traditional satellite-to-ground communication capability, the high-speed IP communication machine also has the capability of converting uplink CCSDS frames into Ethernet frames and converting downlink Ethernet frames into CCSDS frames.

5. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 2, characterized in that: In addition to the traditional radio frequency module and modulation and demodulation capabilities, the intersatellite IP communication machine also has intersatellite communication capabilities above the Mbps level, and has the ability to convert intersatellite CCSDS frames and Ethernet frames to each other.

6. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 2, characterized in that: As long as one of the satellites [1-n] enters the corresponding measurement and control range of the high-speed uplink and downlink ground station, all satellites in the system can be reached through the network.

7. The multi-satellite human-computer interaction method based on satellite-to-ground high-speed uplink and downlink, inter-satellite high-speed routing and IP protocol stack as claimed in claim 2, characterized in that: In the form of a software architecture of a CS architecture or a BS architecture, an interactive interface for the on-orbit update automatic deployment task is designed through a client or a browser. The satellite is logged in through the client or the browser, and a file is selected for upload to complete the on-orbit update automatic deployment task.

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