Satellite-ground man-machine interaction method based on high-speed uplink and downlink and IP protocol stack

Abstract

The invention discloses a satellite-ground man-machine interaction method based on high-speed uplink and downlink and an IP protocol stack. An innovative network interaction type satellite-ground man-machine interaction control mode with a satellite end as a service side and a ground end as a client side is constructed based on a satellite-ground high-speed uplink and downlink communication mechanism and a satellite-ground IP protocol stack Ethernet interconnection architecture. According to the invention, a traditional instruction and telemetering interaction satellite use mode is subverted, high-speed uplink and downlink communication is used as a support, a brand-new satellite interaction mode is constructed by IP network thinking, the traditional measurement and control reliability is ensured, and the convenience and friendliness of satellite use are greatly improved; the satellite use learning cost of a user and the development cost of a development user are greatly reduced; a support is provided for providing multimedia (sound / image / character / video / touch) collaborative interaction for future satellite-ground man-machine interaction; the method provides support for satellite-borne intellectualization, ground satellite control intellectualization expansion and sky-ground intellectualization integration, and has important engineering application value.

Description

Technical Field

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

[0002] As the tasks of satellites become more and more complex, the processing systems on board are also becoming more and more complex, the data being processed is also increasing, and the process of interaction with the ground is becoming more and more complex and cumbersome. It is urgent to improve the satellite-ground interaction mechanism and efficiency to adapt to the future development trend of satellites such as space-ground integration and intelligence. Traditional satellite-ground measurement and control communication is limited by the link bandwidth between the satellite and the ground, and the communication efficiency is low. It usually adopts the remote control command, 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, and the human-computer interaction experience lags far behind the human-computer interaction design in the current industrial field, and it is also unable to keep up with the current satellite intelligence and space-ground integration. Development trend. In addition, with the rapid development of current satellite-ground high-speed uplink and downlink 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 the satellite on-board processing capacity stronger and stronger; in addition, reliability reinforcement technologies based on on-orbit applications of industrial-grade chips, such as metal shell reinforcement, software and hardware multi-mode redundancy and other technologies have also been maturely applied. In general, whether from the urgent need to improve the satellite-to-ground interaction mechanism and efficiency, or from the technical maturity of satellite-to-ground high-speed links, on-board processing capabilities, and the reliability of industrial-grade chips on orbit, the on-board high-speed network communication based on the IP protocol stack has become a good foundation for the next generation of satellite-to-ground interaction mode. The present invention improves on the basis of retaining the traditional satellite-to-ground measurement and control communication, while considering reliability, introducing IP network thinking, and realizing a satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack, which greatly improves the efficiency of satellite-to-ground interaction 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 satellite-to-ground human-computer interaction method based on high-speed uplink and downlink 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 satellite-ground human-computer interaction method based on high-speed uplink and downlink and IP protocol stack. The method relies on the satellite-ground high-speed uplink and downlink communication mechanism and the satellite-ground IP protocol stack Ethernet interconnection architecture to construct an innovative network interaction form satellite-ground human-computer interaction control mode with the satellite end as the service side and the ground end as the client side.

[0006] The architecture of the satellite-ground human-machine interaction system in the satellite-ground human-machine interaction control mode of this innovative network interaction form mainly includes traditional measurement and control ground stations, measurement and control subsystems, traditional low-speed buses, satellite subsystems [1-n], satellite switches, high-speed IP communicators, high-speed uplink and downlink ground stations and ground human-machine interaction terminals; the connection between systems is as follows: the traditional measurement and control ground station is connected to the measurement and control subsystem through radio frequency, the measurement and control subsystem is connected to the satellite subsystems [1-n] all with Ethernet interfaces through traditional low-speed buses, the satellite subsystems [1-n] all with Ethernet interfaces and the high-speed IP communicators are connected through the satellite switch (Ethernet connection), the high-speed IP communicators are connected to the high-speed uplink and downlink ground stations through radio frequency, and the high-speed uplink and downlink ground stations are connected to the ground human-machine interaction terminals through Ethernet.

[0007] The data protocol relationship in the satellite-to-ground human-machine interaction control mode of this innovative network interaction form is as follows: the application layer of the ground human-machine interaction terminal and the system layer of the ground human-machine interaction terminal communicate with each other using the data protocol of Ethernet frames, the system layer of the ground human-machine 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 high-speed IP communication machine communicate with each other using the data protocol of Ethernet frames packaged in CCSDS frames, and the high-speed IP communication machine and other on-board subsystems communicate with each other using the data protocol of Ethernet frames.

[0008] In the above technical solution, compared with the traditional satellite communication machine, in addition to the traditional satellite-to-ground communication capability, the high-speed IP communication machine also has the ability to convert uplink CCSDS frames into Ethernet frames and convert downlink Ethernet frames into CCSDS frames.

[0009] Furthermore, by adopting the above method, 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. By logging in to the satellite through the client or the browser and selecting file upload, the on-orbit update automatic deployment task can be completed quickly and concisely.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This invention is different from the traditional satellite usage mode of command and telemetry interaction. It relies on high-speed uplink and downlink communications and uses IP network thinking to build a new satellite interaction mode. While ensuring the reliability of traditional measurement and control, it greatly improves the convenience and friendliness of satellite use, greatly reducing the user's satellite use learning cost and the development cost of developing users;

[0012] 2. This invention breaks the traditional low-speed and low-efficiency satellite-to-ground measurement and control communication interaction mode, and provides multimedia (sound / image / text / video / tactile) collaborative interaction support for future satellite-to-ground human-computer interaction with Internet thinking;

[0013] 3. The present invention is based on the satellite-to-ground high-speed IP protocol stack communication mechanism, providing support for satellite-borne intelligence, intelligent expansion of ground satellite control, and intelligent integration of the sky and the earth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the architecture of a satellite-to-ground human-computer interaction model based on high-speed uplink and downlink and IP protocol stack;

[0015] Figure 2 It is a schematic diagram of the interactive interface of the on-orbit update automatic deployment task based on the satellite-ground human-machine interaction mode of high-speed uplink and downlink and IP protocol stack;

[0016] Figure 3 It is a schematic diagram of the protocol relationship of the satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack. Specific implementation plan

[0017] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 The invention is a schematic diagram of an example architecture of a satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack, mainly comprising: a traditional measurement and control ground station 1, a measurement and control subsystem 2, a traditional low-speed bus 3 (according to a specific embodiment of the present invention, a CAN bus is adopted), an on-board subsystem [1-n] 4 (according to a specific embodiment of the present invention, a satellite service subsystem and an intelligent subsystem are adopted), an on-board switch 5, a high-speed IP communicator 6, a high-speed uplink and downlink ground station 7 and a ground human-computer interaction terminal 8; the connection between systems is as follows: the traditional measurement and control ground station 1 is connected to the measurement and control subsystem 2 through radio frequency, the measurement and control subsystem 2 is connected to the on-board subsystems 4 such as the satellite service subsystem and the intelligent subsystem which are both provided with Ethernet interfaces through the CAN bus, the on-board subsystems 4 such as the satellite service subsystem and the intelligent subsystem which are both provided with Ethernet interfaces and the high-speed IP communicator 6 are connected through the on-board switch 5 (Ethernet connection), the high-speed IP communicator is connected to the high-speed uplink and downlink ground station 7 through radio frequency, and the high-speed uplink and downlink ground station 7 is connected to the ground human-computer interaction terminal 8 through Ethernet connection.

[0019] Figure 2It is a schematic diagram of the interactive interface of the on-orbit update automatic deployment task based on the satellite-ground human-computer interaction mode of high-speed uplink and downlink and IP protocol stack. The figure shows the interactive interface of the on-orbit update automatic deployment task developed based on the BS software architecture. Here, the traditional remote control command injection and telemetry information feedback are abandoned. The browser is used to log in to the satellite, select the file, and click to upload, so as to quickly and concisely complete the on-orbit update automatic deployment task.

[0020] Figure 3 It is a schematic diagram of the protocol relationship between the satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack:

[0021] The application layer of the ground human-computer interaction terminal and the system layer of the ground human-computer interaction terminal communicate 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 using the data protocol of Ethernet frames packaged in CCSDS frames. The high-speed uplink and downlink ground station and the high-speed IP communication machine communicate using the data protocol of Ethernet frames packaged in CCSDS frames. The high-speed IP communication machine and the remaining onboard subsystems communicate using the data protocol of Ethernet frames.

[0022] The following is a detailed description of an application example of satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack:

[0023] The onboard subsystem 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, the satellite service subsystem and the intelligent subsystem are used as examples of the onboard subsystem; the measurement and control subsystem is a traditional measurement and control transponder; the low-speed bus uses the CAN bus. The measurement and control subsystem is connected to each onboard subsystem such as the satellite service subsystem and the intelligent subsystem or other subsystems through the CAN bus. Here, the traditional measurement and control link is used to ensure the basic reliable connection between the systems, ensure the on-orbit reliability, and meet the satellite reliability design concept; in addition, each onboard subsystem such as the satellite service subsystem and the intelligent subsystem or other subsystems are connected to the onboard switch through Ethernet connection, and the onboard switch is connected to the high-speed IP communication machine, so that all onboard subsystems are connected to Ethernet through the onboard switch.

[0024] The above architecture ensures the reliability on the satellite side. At the same time, the uplink and downlink data CCSDS frames and Ethernet frames are converted through the high-speed IP communication machine. This shields the parsing and framing of CCSDS frames for the onboard subsystems. The onboard 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 ability to parse and frame 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.

[0025] 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 compared to 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, the 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.

[0026] Taking the automatic deployment of on-orbit updates as an example, the following describes a satellite-ground human-machine interaction process and data protocol relationship based on high-speed uplink and downlink and IP protocol stack. Figure 2 As shown in the figure, when the XX 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, and the XX 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 3 As shown in the figure, during the whole file uploading process, the file is first disassembled and assembled into an "Ethernet frame-file" package by the application layer of the ground human-computer interaction terminal and sent to the system layer of the ground human-computer interaction terminal. Then, the system layer of the ground human-computer interaction terminal disassembles the Ethernet frame and sub-packets it into a "CCSDS frame-Ethernet frame-file" package according to the CCSDS frame, and sends it to the 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 onboard high-speed IP communication machine through the traditional radio frequency signal. The high-speed IP communication machine removes the CCSDS frame protocol from the "CCSDS frame-Ethernet frame-file" package to form an "Ethernet frame-file" package, and sends it to the onboard intelligent subsystem. The intelligent subsystem then assembles the "Ethernet frame-file" package into an upstream recovery file according to the file protocol.

[0027] The present invention is different from the traditional satellite usage mode of command and telemetry interaction. It relies on high-speed uplink and downlink communications and uses IP network thinking to construct a new satellite interaction mode. While ensuring the reliability of traditional measurement and control, it greatly improves the convenience and friendliness of satellite use, greatly reduces the user's satellite usage learning cost and the development cost of users; it breaks the traditional low-speed and low-efficiency 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 satellite-to-ground human-computer interaction; based on the satellite-to-ground high-speed IP protocol stack communication mechanism, it provides support for satellite onboard intelligence, ground satellite control intelligent expansion, and space-ground intelligent integration, and has important engineering application value.

[0028] The above description of the disclosed example 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 satellite-to-ground human-computer interaction mode based on high-speed uplink and downlink and IP protocol stack of the present invention, but the increase and decrease in the number of measurement and control subsystems and on-board subsystems 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, and interactive interface modifications 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 herein, but will conform to the widest scope consistent with the principles disclosed herein.

Claims

1. A satellite-to-ground human-computer interaction method based on high-speed uplink and downlink and IP protocol stack, characterized in that: Relying on the satellite-ground high-speed uplink and downlink communication mechanism and the satellite-ground IP protocol stack Ethernet interconnection architecture, an innovative network interaction form and satellite-ground human-computer interaction control mode is constructed with the satellite end as the service side and the ground end as the client side.

2. The satellite-to-ground human-computer interaction method based on high-speed uplink and downlink and IP protocol stack as claimed in claim 1, characterized in that: The architecture of the satellite-to-ground human-machine interaction system in the innovative network interaction form satellite-to-ground human-machine interaction control mode includes a traditional measurement and control ground station (1), a measurement and control subsystem (2), a traditional low-speed bus (3), an onboard subsystem [1-n] (4), an onboard switch (5), a high-speed IP communication machine (6), a high-speed uplink and downlink ground station (7) and a ground human-machine interaction terminal (8); the connection between the systems is as follows: the traditional measurement and control ground station (1) is connected to the measurement and control subsystem (2) through radio frequency, the measurement and control subsystem (2) is connected to the onboard subsystem [1-n] (4) which has an Ethernet interface through a traditional low-speed bus (3), the onboard subsystem [1-n] (4) which has an Ethernet interface and the high-speed IP communication machine (6) are connected through the onboard switch (5) and through Ethernet, the high-speed IP communication machine is connected to the high-speed uplink and downlink ground station (7) through radio frequency, and the high-speed uplink and downlink ground station (7) is connected to the ground human-machine interaction terminal through Ethernet.

3. The satellite-to-ground human-computer interaction method based on high-speed uplink and downlink and IP protocol stack as claimed in claim 2, characterized in that: The data protocol relationship in the innovative network interaction form satellite-to-ground human-machine interaction control mode is as follows: the application layer of the ground human-machine interaction terminal (8) and the system layer of the ground human-machine interaction terminal (8) communicate using the data protocol of Ethernet frames, the system layer of the ground human-machine interaction terminal (8) and the high-speed uplink and downlink ground station (7) communicate using the data protocol of Ethernet frames packaged in CCSDS frames, the high-speed uplink and downlink ground station (7) and the high-speed IP communication machine (6) communicate using the data protocol of Ethernet frames packaged in CCSDS frames, and the high-speed IP communication machine (6) and the on-board subsystem [1-n] (4) communicate using the data protocol of Ethernet frames.

4. The satellite-to-ground human-computer interaction method based on high-speed uplink and downlink 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 to convert uplink CCSDS frames into Ethernet frames and convert downlink Ethernet frames into CCSDS frames, that is, it has the capability to parse and frame CCSDS frames / Ethernet frames.

5. The satellite-to-ground human-computer interaction method based on high-speed uplink and downlink and IP protocol stack as claimed in claim 2, characterized in that: Designed in the form of CS or BS software architecture through client or browser Update the interactive interface of the automatic deployment task on orbit. Log in to the satellite through the client or browser and select the file to upload. Complete the in-orbit update automatic deployment task.

Images