Laser link state sensing and rapid recovery method and system based on satellite service health management

Abstract

The invention relates to a laser link state sensing and rapid recovery method and system based on satellite service health management. The method comprises the following steps: monitoring a communication locking state and a tracking and pointing locking state of a laser link, and obtaining an error rate and a locking indication; when it is monitored that the tracking and pointing locking state loses lock, tracking and pointing abnormal handling is triggered; when it is monitored that tracking and aiming are normal, but the communication locking state loses lock or the error rate continuously exceeds a threshold value, triggering communication abnormity handling; and automatically executing the tracking and aiming exception handling and / or the communication exception handling through a pre-configured instruction template, and dynamically adjusting parameters through an instruction. According to the method provided by the invention, a two-stage processing strategy for communication abnormity and tracking abnormity is provided, link establishment task management and automatic template scheduling of all terminals are realized through satellite service, and the convenience of link establishment of constellation inter-satellite laser communication terminals is improved.

Description

Technical Field

[0001] The present invention relates to the field of satellite laser communication technology, and in particular to a laser link state perception and rapid recovery method and system based on satellite health management. Background Art

[0002] Intersatellite laser communication terminals are typically installed on two satellites, enabling high-speed optical communication between the two satellites through space-based light transmission. Laser communication uses lasers as light sources and transmits small beams, enabling high-speed, long-distance information transmission. Laser communication boasts wide transmission bandwidth, strong anti-interference and anti-interception capabilities, and high security. Laser communication is widely used in high-speed information transmission scenarios, such as between constellations and between satellites and the ground.

[0003] Inter-satellite and satellite-to-ground laser communication technologies have formed a relatively mature technical system and technical route, and have completed in-orbit verification of multi-platform and multi-manufacturer interconnection. Laser communication technology can be applied to high-speed communication scenarios such as inter-satellite, satellite-to-ground, starry sky, air-to-air, air-to-ground, and ground-to-ground. At present, laser communication technology is being widely used in the construction of large constellation networks, such as Starlink and the National Internet Constellation. Laser terminal stable communication technology is the basis for inter-satellite network information transmission.

[0004] With the development of laser communication technology, the technology has evolved from two technical approaches: using beacon light to guide signal light for bidirectional laser communication to direct signal light communication without beacon light guidance. The beacon light solution implements wide-divergence light guidance in the early stages of link establishment, enabling rapid signal light capture. The beacon-free solution uses signal light scanning coverage to achieve dual-terminal communication capture, offering advantages such as lightweight, compactness, and low cost.

[0005] For current laser communication solutions without beacon light, the intersatellite laser link establishment process is relatively complex. Both laser terminals must agree on the scanning and gazing roles, the start and end times of scanning, and a link establishment instruction sequence based on the visible arc segments. Link establishment instructions are generated in advance according to the corresponding instruction times. Laser terminals involve functions such as tracking and aiming control of the optical head, optical power control of the optical amplifier, and communication modem. These instructions involve a large number of commands, which vary depending on the time and scenario of each link establishment.

[0006] When the link is broken due to factors such as changes in the space environment, platform disturbances, and terminal temperature changes, the two parties in the link establishment need to repeat the entire link establishment process to re-establish the link. For inter-satellite network information transmission, this will cause information congestion, information transmission delays, packet loss, and other phenomena. Summary of the Invention

[0007] The task of the present invention is to provide a laser link status perception and rapid recovery method and system based on satellite health management. Through the method and / or system, the problems of information transmission delay and packet loss when re-establishing a link after a link is broken are solved. According to the on-board health management strategy, link establishment control is automatically performed according to the link break level, thereby improving the convenience of link establishment of constellation inter-satellite laser communication terminals.

[0008] In a first aspect of the present invention, the aforementioned task is solved by a laser link status perception and rapid recovery method based on satellite health management, the method comprising the following steps: Monitor the communication lock status and tracking lock status of the laser link, and obtain the bit error rate and lock indication; When the tracking and aiming lock state is detected to be lost, the tracking and aiming abnormality handling is triggered; When tracking and aiming are normal but the communication lock state is lost or the bit error rate continuously exceeds the threshold, the communication abnormality handling is triggered; and Automatically executing the tracking and aiming anomaly handling and / or the communication anomaly handling through a pre-configured instruction template, and dynamically adjusting parameters through instructions; The tracking and aiming abnormality handling is as follows: executing a light-free wait; if the light is not restored after waiting, calling a small-scale recapture template scan; if the number of small-scale recapture failures exceeds a threshold, calling a large-scale recapture template scan; The communication abnormality handling is: executing the rescanning template and the communication reset template in sequence.

[0009] Furthermore, the satellite service monitoring laser link communication lock state and tracking lock state also include: Receive and store a link establishment schedule recorded by a ground measurement and control system, wherein the link establishment schedule includes a target satellite identifier, an onboard laser communication terminal identifier, a link establishment start time, and a link establishment end time; Matching preset instruction templates according to the link establishment scenario; and The orbital data of the corresponding target star is extrapolated according to the target star identifier, and the orbital data is broadcast to the laser communication terminal through point-to-point communication.

[0010] Furthermore, tracking anomaly handling takes precedence over communication anomaly handling.

[0011] Furthermore, the instruction template includes a laser communication terminal identifier, a template identifier, an instruction sequence, and a time offset sequence.

[0012] Furthermore, the dark waiting time is 10 seconds to 30 seconds; and / or The scanning angle of the small-scale recapture template is 0-5 mrad; and / or The scanning angle of the large-scale recapture template is >5 mrad.

[0013] Furthermore, a rescanning template is executed when the bit error rate exceeds the threshold more than 30 times within 1 minute; If the rescan fails three times in a row, execute the communication reset template.

[0014] Furthermore, the laser link status perception and rapid recovery method based on satellite health management also includes a safety protection mechanism: Limit the number of communication resets to 3 times per day; After the communication reset fails three times, it enters the safe mode and feeds back to the ground measurement and control system; the above parameters are modified on-orbit through commands.

[0015] In a second aspect of the present invention, the aforementioned task is also solved by a system for implementing the aforementioned laser link status perception and rapid recovery method based on satellite health management, the system comprising: The status perception module is configured to monitor the communication lock status and tracking lock status of the laser link, and obtain the bit error rate and lock indication by analyzing the terminal telemetry data; The tracking and aiming abnormality handling module is configured to trigger the tracking and aiming abnormality handling when detecting that the tracking and aiming lock state is lost; a communication anomaly handling module configured to trigger communication anomaly handling when monitoring that tracking and aiming are normal but communication lock state is lost or the bit error rate continuously exceeds a threshold; and The template management and parameter adjustment module is configured to automatically execute the tracking and aiming exception handling and / or the communication exception handling through a pre-configured instruction template, and dynamically adjust parameters through instructions.

[0016] In a third aspect of the present invention, an electronic device is further provided, comprising: a processor configured to execute machine-readable instructions; A graphics card with an artificial intelligence chip configured to train a laser link status perception and rapid recovery method based on satellite health management; and The memory is configured to store machine-readable instructions, which, when executed by the processor and / or graphics card, perform the steps of the laser link status perception and rapid recovery method based on satellite health management.

[0017] In a fourth aspect of the present invention, a computer-readable storage medium is provided on which machine-readable instructions are stored. When the machine-readable instructions are executed by a processor, the steps of the laser link status perception and rapid recovery method based on satellite health management are performed.

[0018] The technical solution provided by the present invention has the following advantages: 1. The laser link status perception and rapid recovery method based on satellite health management proposed in this invention can automatically schedule according to different link establishment working modes. Through satellite services, it can realize link establishment task management and automated template scheduling for all terminals, thereby improving the convenience of link establishment for constellation inter-satellite laser communication terminals.

[0019] 2. The laser link status perception and rapid recovery method based on satellite health management proposed in the present invention has a two-level handling method for communication anomalies, realizing a two-level handling strategy for increased bit errors and communication link disconnection.

[0020] 3. The laser link status perception and rapid recovery method based on satellite health management proposed in this invention has a two-level handling method for tracking and aiming anomalies, implementing a two-level handling strategy for small-scale recapture and large-scale recapture of initial link disconnection, and supports flexible parameter configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To further illustrate the above and other advantages and features of various embodiments of the present invention, a more detailed description of various embodiments of the present invention will be presented with reference to the accompanying drawings. It will be understood that these drawings depict only typical embodiments of the present invention and are not to be considered as limiting the scope thereof. In the drawings, for clarity, identical or corresponding components will be represented by the same or similar reference numerals.

[0022] Figure 1 A schematic diagram showing a flow chart of a laser link status perception and rapid recovery method based on satellite health management according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of an instruction template format according to an embodiment of the present invention is shown; Figure 3 A schematic diagram showing instruction template allocation for different links according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing instruction templates for different links and link establishment scenario matching according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of determining the health status of a laser link tracking and aiming according to an embodiment of the present invention is shown; Figure 6 A schematic diagram illustrating the determination of the health status of laser link communication according to an embodiment of the present invention is shown; and Figure 7 A schematic diagram of a laser link status perception and rapid recovery system based on satellite health management according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0023] In the following description, the present invention is described with reference to various embodiments. However, those skilled in the art will recognize that the embodiments may be implemented without one or more of the specific details or with other alternative and / or additional methods or components. In other cases, well-known structures or operations are not shown or described in detail to avoid obscuring the inventive aspects of the present invention. Similarly, specific numbers and configurations are set forth for illustrative purposes in order to provide a comprehensive understanding of the embodiments of the present invention. However, the present invention is not limited to these specific details.

[0024] In this specification, reference to "one embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. The appearances of the phrase "in one embodiment" in various places in this specification are not necessarily all referring to the same embodiment.

[0025] It should be noted that the embodiments of the present invention describe the method steps in a specific order, but this is only for the purpose of illustrating the specific embodiment and does not limit the order of the steps. On the contrary, in different embodiments of the present invention, the order of the steps can be adjusted according to actual needs.

[0026] In the present invention, each module of the system according to the present invention can be implemented using software, hardware, firmware, or a combination thereof. When a module is implemented using software, the module's functions can be implemented through a computer program flow. For example, the module can be implemented using a code segment (e.g., a code segment written in a language such as C or C++) stored in a storage device (e.g., a hard disk, memory, etc.), wherein the corresponding module functions can be implemented when the code segment is executed by a processor. When a module is implemented using hardware, the module's functions can be implemented by setting up a corresponding hardware structure. For example, the module's functions can be implemented by hardware programming a programmable device such as a field programmable gate array (FPGA), or by designing an application-specific integrated circuit (ASIC) including electronic components such as multiple transistors, resistors, and capacitors. When a module is implemented using firmware, the module's functions can be written into a read-only memory (ROM) or EEPROM of the device in the form of program code, and the corresponding module functions can be implemented when the program code is executed by the processor. In addition, certain functions of the module may need to be implemented by separate hardware or through collaboration with the hardware, for example, the detection function is implemented by corresponding sensors (such as proximity sensors, accelerometers, gyroscopes, etc.), the signal transmission function is implemented by corresponding communication devices (such as Bluetooth devices, infrared communication devices, baseband communication devices, Wi-Fi communication devices, etc.), the output function is implemented by corresponding output devices (such as displays, speakers, etc.), and so on.

[0027] This invention addresses the operational complexity of establishing and reestablishing intersatellite laser communication terminals in large constellations through satellite overall design, improving the convenience of establishing intersatellite links and enhancing system availability. The laser link status perception and rapid recovery method, based on satellite health management, provided by this invention addresses the need to perceive the link status of the satellite after link establishment. The method is divided into two levels, communication and tracking, based on the level of link disruption. Upon sensing a link disruption, satellite services autonomously match the last target satellite and broadcast time, orbit, and attitude information. Link establishment is then automatically controlled based on the level of link disruption, in accordance with the onboard health management strategy.

[0028] Figure 1 The following is a flow chart showing a laser link status perception and rapid recovery method based on satellite health management according to an embodiment of the present invention. Figure 1 , the laser link state perception and rapid recovery method based on star service health management proposed by the present invention is described. In one embodiment of the present invention, the laser link state perception and rapid recovery method based on star service health management can be executed by a computer. Figure 1 As shown, the laser link status perception and rapid recovery method based on satellite health management includes the following steps: First, monitor the communication lock status and tracking lock status of the laser link to obtain the bit error rate and lock indication.

[0029] In one embodiment of the present invention, before this step, it may also include: receiving and storing a link establishment schedule recorded by the ground measurement and control system, wherein the link establishment schedule includes a target satellite identifier, a laser communication terminal identifier, a link establishment start time, and a link establishment end time; matching a preset instruction template according to a link establishment scenario; and extrapolating the orbital data of the corresponding target satellite according to the target satellite identifier, and broadcasting the orbital data to the laser communication terminal through point-to-point communication.

[0030] The ground-based measurement and control system provides the basic information required for link establishment, including the orbital information of the host satellite and the target satellite. The key elements of the link establishment schedule include the code / identifier (ID) of the target satellite in the constellation, the code / identifier (ID) of the onboard laser communication terminal, and the link establishment start and end times for each laser communication terminal. In one embodiment of the present invention, for link establishment tasks involving multiple satellites within a constellation, the link establishment schedule may include information such as the satellites involved in the link establishment, the start and end time periods for the link establishment, and other information. The onboard satellite service stores and calls automated link establishment processes, selecting different instruction templates based on different link establishment scenarios to achieve automated link establishment. In one embodiment of the present invention, if only the satellite service calls the process according to the timed flow of the instruction sequence, the satellite service can simultaneously manage dozens of single devices on the satellite. For link establishment scenarios involving the same or different orbits within the constellation, four terminals are generally deployed on the satellite.

[0031] A preset instruction template is matched according to the link establishment scenario, wherein the instruction template may include a laser communication terminal identifier, a template identifier, an instruction sequence, and a time offset sequence. On the satellite, according to the link establishment scenarios of different terminals, a configuration template is allocated according to the template, and the instruction template is added. In one embodiment of the present invention, the link establishment scenarios include multiple categories, and different link establishment scenarios are bound to different instruction templates. In one embodiment of the present invention, the instruction template supports both beacon light and non-beacon light solutions. In one embodiment of the present invention, the beacon light solution instruction template may include a beacon light activation instruction and scanning parameters; the non-beacon light solution instruction template may include a signal light power control instruction and scanning parameters.

[0032] In one embodiment of the present invention, an instruction template management function based on a satellite service instruction sequence can be designed. The set instruction templates may include multiple instruction templates. The number of instructions supported by the terminal of each instruction template and the instruction length are determined according to the number of instructions for link establishment by the terminal. Different terminal identifiers, the number of instruction templates, the template ID, and the time offset and instruction frame in the template are designed for different link designs on the satellite. Figure 2 FIG1 shows a schematic diagram of the instruction template format of an embodiment of the present invention. Figure 2 As shown, each instruction template includes a laser communication terminal identifier (i.e., terminal identifier in the figure), a template identifier (i.e., template ID in the figure), an instruction sequence (instruction 1, instruction 2, ..., instruction n), a time offset sequence (time offset 1, time offset 2, ..., time offset n), and the number of template instructions, i.e., the value n. Figure 2 As shown in the figure, the template content means: for a certain terminal, template No. X has a total of a instructions (a is the number of instructions in the template). When execution starts, for example, instruction 1 is executed at the 0th second, instruction 1 is executed after b seconds (b is time offset 1), instruction 2 is executed after c seconds (c is time offset 2), and so on, until the execution of the instructions is completed.

[0033] It should be noted that Figure 2 The instructions in the command are pre-configured instructions for the terminal. After all are executed, it is time to start link building. Usually, it is prepared in advance and the response time is less than 1 second.

[0034] In different constellation link establishment scenarios, different instruction templates are designed according to the different parameter configurations of the terminal, and allocation is carried out according to the instruction templates to support link establishment sequences in different scenarios. Figure 3 FIG. 1 shows a schematic diagram of instruction template allocation for different links according to an embodiment of the present invention. Figure 3As shown, 20 command templates for four links are used as an example. Different template configurations can be selected during a single link establishment. In one embodiment of the present invention, a single laser communication terminal establishes a link with only one target satellite at a time, eliminating command conflicts. Multi-terminal tasks are scheduled sequentially based on the link establishment start time. Satellite timing accuracy is achieved through onboard BeiDou / GPS timing, ensuring consistent time across all satellites. Therefore, the time offset definition in the command template is independent of satellite timing accuracy.

[0035] Figure 4 FIG1 shows a schematic diagram of instruction templates and link building scenario matching for different links in one embodiment of the present invention. Figure 4 As shown, different command templates can be bound to different link establishment scenarios for laser communication terminals. Automatic template invocation is achieved through the task identifier of the link establishment schedule or through command configuration. The number of link establishment scenarios and templates can be expanded as needed. All ground-based command templates are stored on the satellite, and the ground configures template numbers based on different mission areas. Command template matching is the process of configuring commands on the satellite. When the satellite service is executed, the configured command template identifier (i.e., number) is read. If command template 1 is assigned, the satellite service automatically calls command template 1. Different command templates correspond to different target satellites. Terminal parameters vary, so they can be stored as different command templates, eliminating the need for frequent changes.

[0036] Based on the target satellite ID, the orbital data of the corresponding target satellite is extrapolated and broadcast to the laser communication terminal via point-to-point communication. In one embodiment of the present invention, the orbital data can be broadcast to the laser communication terminal using 422 bus point-to-point communication. In one embodiment of the present invention, the satellite service reads the target satellite ID, start time, and end time of each link in the link establishment schedule. Based on the target satellite ID, the satellite extrapolates the target satellite orbit, thus broadcasting the orbit for different links according to the target satellite ID. When the orbit is added, the satellite name of the target satellite is included. The satellite service broadcasts the orbit of the corresponding satellite based on the target satellite of the link establishment.

[0037] It's worth noting that under normal circumstances, the laser communication terminal reports its own telemetry status every second. It only needs to identify a few bytes in the telemetry as the bit error rate. When the data source code is greater than N for M consecutive times, the bit error rate exceeds the threshold. Here, M and N are parameters that can be set onboard.

[0038] Next, when it is detected that the tracking and aiming lock state is lost, the tracking and aiming abnormal handling is triggered.

[0039] When the coarse / fine tracking lock indication of a link on the satellite is judged to be lost, such as Figure 5As shown, the system first waits for a set duration of seconds (configurable) to reduce link disconnection caused by jitter. This action is typically implemented by the terminal. If the platform monitors the tracking and lock indication status as lost, and the duration of the loss of lock exceeds several times the duration of the set duration (configurable), the satellite service automatically configures the terminal template and executes the small-scale reacquisition process for lost link. The default number of executions is three (configurable). If the platform monitors the tracking and lock indication status as lost after three (configurable) attempts, the initial link acquisition process is invoked, using a large-scale acquisition scan. The satellite service automatically configures the terminal template and automatically invokes the link establishment template. In one embodiment of the present invention, the set duration is 10-30 seconds; the small-scale reacquisition template has a scanning angle of 0-5 mrad; and the large-scale reacquisition template has a scanning angle greater than 5 mrad. It is worth noting that instantaneous jitter typically ranges from a few seconds to tens of seconds and can be distinguished by determining the duration. The terminal has a certain micro-vibration compensation capability, and the introduction of new micro-vibration data can assist in judging possible misjudgments, and the final result of the communication status can be used for judgment. It is worth noting that the recovery success rate and recovery time are determined by the orbit. Generally speaking, the success rate of two recaptures is more than 90%, and the time is in the order of seconds to minutes. Next, when it is monitored that the tracking and aiming are normal but the communication lock state is lost or the bit error rate continuously exceeds the threshold, the communication abnormality handling is triggered.

[0040] like Figure 6 As shown in the figure, if the bit error rate exceeds a threshold (settable threshold) for more than 30 times (settable parameter) within a 1-minute period (time parameter), the resweep template is executed, initiating a communication resweep. It should be noted that this threshold is typically determined by the application, based on the impact on constellation operations. It is statically configured on the ground and can be modified by command, without requiring autonomous learning. If normal communication is still not restored after three attempts, the communication reset template is executed to reset communications. This reset is a soft operation and does not cause any damage.

[0041] In one embodiment of the present invention, tracking anomaly handling takes precedence over communication anomaly handling.

[0042] Finally, the tracking and aiming anomaly handling and / or the communication anomaly handling are automatically executed through a pre-configured instruction template, and parameters are dynamically adjusted through instructions.

[0043] In one embodiment of the present invention, the laser link status perception and rapid recovery method based on satellite health management also includes a safety protection mechanism: limiting the number of communication resets to three times per day; after the communication reset fails to recover three times, it enters a safe mode and feeds back to the ground measurement and control system.

[0044] The laser link state perception and rapid recovery method based on star health management can automatically schedule according to different working modes of link establishment, realizes link establishment task management and automatic template scheduling of all terminals through the star, and improves the convenience of constellation inter-satellite laser communication terminal link establishment.

[0045] In an embodiment of the present application, the present application also provides a system for the laser link state perception and rapid recovery method based on star health management, as shown in Figure 7 The system comprises: A state perception module configured to monitor the communication lock state and the tracking lock state of the laser link, and to obtain the error code rate and the lock indication by analyzing the terminal telemetry data. A tracking abnormality handling module configured to trigger tracking abnormality handling when the tracking lock state is lost. A communication abnormality handling module configured to trigger communication abnormality handling when the tracking is normal, but the communication lock state is lost or the error code rate continuously exceeds the threshold. A template management and parameter adjustment module configured to automatically execute the tracking abnormality handling and / or the communication abnormality handling through the pre-configured instruction template, and to dynamically adjust the parameters through the instruction.

[0046] In an embodiment of the present application, the laser link state perception and rapid recovery system based on star health management further comprises a safety protection module configured to limit the number of communication resets per day to 3, and to enter a safety mode and feed back to the ground measurement and control system after 3 communication resets fail to recover.

[0047] In an embodiment of the present application, the present application also provides an electronic device comprising a processor, a graphics card with an artificial intelligence chip, and a memory, the memory being configured to store machine-readable instructions, the graphics card being configured to train the laser link state perception and rapid recovery method based on star health management, and the processor being configured to execute the machine-readable instructions. The processor and / or the graphics card execute the machine-readable instructions to implement the following processing steps: monitoring the communication lock state and the tracking lock state of the laser link, obtaining the error code rate and the lock indication; triggering tracking abnormality handling when the tracking lock state is lost; triggering communication abnormality handling when the tracking is normal, but the communication lock state is lost or the error code rate continuously exceeds the threshold; and automatically executing the tracking abnormality handling and / or the communication abnormality handling through the pre-configured instruction template, and dynamically adjusting the parameters through the instruction.

[0048] The graphics card can preferably have a GPU computing power higher than 5.0. Since the amount of data required for training is large, providing a graphics card configuration can significantly improve the training speed.

[0049] The memory includes various media that can store machine-readable instructions, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0050] It can be understood that in addition to the memory and processor mentioned above, the above-mentioned computer system also includes other software and hardware components not listed in this specification. The specific components can be determined according to the model of the specific data processing equipment in different application scenarios. This specification will not list them one by one in detail.

[0051] In one embodiment of the present invention, the present invention further provides a computer-readable storage medium having machine-readable instructions stored thereon, wherein the machine-readable instructions implement the following processing steps when executed by a processor: monitoring the communication lock status and tracking and aiming lock status of the laser link, obtaining a bit error rate and a lock indication; triggering tracking and aiming abnormality handling when it is detected that the tracking and aiming lock status is lost; triggering communication abnormality handling when it is detected that the tracking and aiming is normal but the communication lock status is lost or the bit error rate continuously exceeds a threshold; and automatically executing the tracking and aiming abnormality handling and / or the communication abnormality handling through a preconfigured instruction template, and dynamically adjusting parameters through instructions.

[0052] Although various embodiments of the present invention have been described above, it should be understood that they are presented as examples only and not as limitations. It will be apparent to those skilled in the relevant art that various combinations, modifications, and variations may be made thereto without departing from the spirit and scope of the present invention. Therefore, the breadth and scope of the present invention disclosed herein should not be limited by the exemplary embodiments disclosed above, but should be defined based on the technical solutions of the present invention and their equivalents.

Claims

1. A laser link status perception and rapid recovery method based on satellite health management, characterized in that: The steps include: Monitor the communication lock status and tracking lock status of the laser link, and obtain the bit error rate and lock indication; When the tracking and aiming lock state is detected to be lost, the tracking and aiming abnormality handling is triggered; When the tracking and aiming are normal but the communication lock status is lost or the bit error rate exceeds the threshold continuously, the communication abnormality handling is triggered; as well as Automatically executing the tracking and aiming anomaly handling and / or the communication anomaly handling through a pre-configured instruction template, and dynamically adjusting parameters through instructions; The tracking and aiming abnormality handling is as follows: executing a no-light wait; if the light is not restored after waiting, calling a small-scale recapture template scan; if the number of small-scale recapture failures is greater than a threshold, calling a large-scale recapture template scan; The communication abnormality handling is as follows: executing the rescanning template and the communication reset template in sequence.

2. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: The communication lock status and tracking lock status of the satellite monitoring laser link also include: Receive and store a link establishment schedule recorded by a ground measurement and control system, wherein the link establishment schedule includes a target satellite identifier, an onboard laser communication terminal identifier, a link establishment start time, and a link establishment end time; Matching preset instruction templates according to the link establishment scenario; and The orbital data of the corresponding target star is extrapolated according to the target star identifier, and the orbital data is broadcast to the laser communication terminal through point-to-point communication.

3. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: Tracking anomaly handling takes precedence over communication anomaly handling.

4. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: The instruction template includes a laser communication terminal identifier, a template identifier, an instruction sequence, and a time offset sequence.

5. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: The dark waiting time is 10-30 seconds; and / or The scanning angle of the small-scale recapture template is 0-5 mrad; and / or The scanning angle of the large-scale recapture template is >5 mrad.

6. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: When the bit error rate exceeds the threshold more than 30 times within 1 minute, the rescan template is executed; If the rescan fails three times in a row, execute the communication reset template.

7. The laser link status perception and rapid recovery method based on satellite health management according to claim 1 is characterized in that: Also includes safety protection mechanisms: Limit the number of communication resets to 3 times per day; After the communication reset fails three times, it enters the safe mode and feeds back to the ground measurement and control system.

8. A system for implementing the laser link status perception and rapid recovery method based on satellite service health management according to any one of claims 1 to 7, characterized in that: include: A state perception module is configured to monitor the communication lock state and tracking lock state of the laser link and obtain the bit error rate and lock indication; The tracking and aiming abnormality handling module is configured to trigger the tracking and aiming abnormality handling when detecting that the tracking and aiming lock state is lost; The communication abnormality handling module is configured to trigger the communication abnormality handling when it is detected that the tracking and aiming are normal but the communication lock state is lost or the bit error rate continuously exceeds the threshold; as well as The template management and parameter adjustment module is configured to automatically execute the tracking and aiming exception handling and / or the communication exception handling through a pre-configured instruction template, and dynamically adjust parameters through instructions.

9. An electronic device, characterized in that: include: a processor configured to execute machine-readable instructions; A graphics card with an artificial intelligence chip configured to train a laser link status perception and rapid recovery method based on satellite health management; and A memory configured to store machine-readable instructions, wherein the machine-readable instructions, when executed by a processor and / or a graphics card, perform the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that Machine-readable instructions are stored thereon, which, when executed by a processor, perform the steps of the method according to any one of claims 1 to 7.

Images