Working method and device of satellite communication remote sensing fusion system, medium and program product

Abstract

The invention relates to the technical field of satellite loads, in particular to a working method and device of a satellite communication remote sensing fusion system, a medium and a program product. The method comprises the following steps: realizing time synchronization among components of the system through a high-precision clock and a comprehensive task management and control unit; on the basis of time synchronization, the comprehensive task management and control unit receives a user remote sensing demand sent by a satellite-ground feed communication load or a satellite-ground user communication load and analyzes the user remote sensing demand to obtain an analysis result; the comprehensive task management and control unit sends an instruction to the remote sensing camera based on an analysis result; the remote sensing camera shoots according to the instruction and sends remote sensing data to the comprehensive task management and control unit; and the comprehensive task management and control unit determines spectrum selection for data downloading according to the spectrum sensing information and downloads the remote sensing data based on the determined spectrum when a preset condition is met. The system can reduce the data volume of remote sensing data transmission while guaranteeing the timeliness and transmission rate of remote sensing information transmission.

Description

Technical Field

[0001] The present application relates to the field of satellite payload technology, and in particular to working methods, equipment, media and program products of satellite communication and remote sensing fusion systems. Background Art

[0002] Due to the continuous development of satellite remote sensing technology, the resolution and acquisition frequency of satellite remote sensing images are constantly improving, and the amount of satellite remote sensing image data is growing exponentially. Faced with a large demand for remote sensing data transmission, the bandwidth of satellite communications is very limited, and the transmission link is easily interfered with, resulting in a significant increase in the delay of remote sensing data transmission, affecting the real-time nature of remote sensing services. At the same time, massive remote sensing data requires higher data management costs, and processing data consumes a lot of computing resources.

[0003] However, the existing remote sensing satellites have separated communication services from remote sensing services. Although more efficient source coding and compression algorithms can alleviate data transmission pressure, it is still difficult to cope with the growing demand for high-real-time remote sensing service transmission. Moreover, although compression algorithms can reduce data transmission requirements, they increase computing power requirements, and the high cost of data management still exists. Summary of the invention

[0004] In order to solve the technical problems that the above-mentioned remote sensing business transmission requirements cannot be met and the remote sensing data processing efficiency is low, the present application provides a working method, equipment, medium and program product of a satellite communication remote sensing fusion system.

[0005] In a first aspect, the present application provides a working method of a satellite communication remote sensing fusion system, the system comprising a remote sensing camera, a high-precision clock, an integrated task control unit, a satellite-to-ground feed communication load, and a satellite-to-ground user communication load, the remote sensing camera, the high-precision clock, the satellite-to-ground feed communication load, and the satellite-to-ground user communication load are all connected to the integrated task control unit; the method comprises: Time synchronization among components of the system is achieved through the high-precision clock and the integrated task control unit; On the basis of time synchronization, the integrated task control unit receives the user remote sensing demand sent by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload and analyzes the user remote sensing demand to obtain an analysis result; The integrated task control unit issues a command to the remote sensing camera based on the analysis result; The remote sensing camera takes pictures according to the instruction and sends the remote sensing data to the integrated task control unit; The integrated task control unit determines the spectrum selection for data downlink according to the spectrum sensing information, and downlinks the remote sensing data based on the determined spectrum when the preset conditions are met.

[0006] In some embodiments of the present application, the time synchronization between components is achieved by using the high-precision clock and the comprehensive task control unit, including: The high-precision clock generates a 1PPS signal, and the 1PPS signal is used for time correction; The integrated task control unit distributes the 1PPS signal to the remote sensing camera, the satellite-to-ground feed communication payload, and the satellite-to-ground user communication payload to achieve time synchronization among the components of the system.

[0007] In some embodiments of the present application, the analyzing the user's remote sensing requirements to obtain the analysis results includes: Analyzing the user's remote sensing demand to determine whether the user's remote sensing demand meets the demand conditions; If the requirement is not met, the user is notified to change the user remote sensing requirement; if the requirement is met, the analysis result is obtained.

[0008] In some embodiments of the present application, the remote sensing camera takes pictures according to the instruction and sends the remote sensing data to the integrated task control unit, including: The remote sensing camera receives the instruction sent by the integrated task control unit; The remote sensing camera takes pictures according to the time and position corresponding to the instruction, and sends the remote sensing data obtained by the pictures back to the comprehensive task management and control unit.

[0009] In some embodiments of the present application, the integrated task control unit determines spectrum selection for data downlink according to spectrum sensing information, including: The integrated task control unit receives a signal from a ground station or a ground user transmitted by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload; The integrated task control unit analyzes the signal from the ground station or the ground user to obtain spectrum sensing information; The integrated task control unit determines a spectrum to be used for data downlink according to the spectrum sensing information.

[0010] In some embodiments of the present application, before the remote sensing data is downloaded based on a determined spectrum when preset conditions are met, it also includes: the integrated task control unit detects targets in the remote sensing data, wherein the detection method is implemented by a lightweight AI model built into the integrated task control unit.

[0011] In some embodiments of the present application, the step of downloading the remote sensing data based on the determined frequency spectrum when a preset condition is met includes: If the probability of the integrated task control unit detecting the target exceeds a preset threshold, it is deemed to meet the preset conditions; The remote sensing data that meets the preset conditions will be transmitted with the highest communication priority.

[0012] In some embodiments of the present application, remote sensing data that meets the preset conditions is transmitted with the highest communication priority, including The integrated task control unit instructs the satellite-to-ground feed communication load or the satellite-to-ground user communication load to start data downlink on the data downlink standby spectrum; The satellite-to-ground feed communication load or the satellite-to-ground user communication load performs a data downlink operation on the remote sensing data that meets preset conditions with the highest communication priority.

[0013] In some embodiments of the present application, the satellite-to-ground feed communication payload is connected to the Q / V communication antenna to realize the satellite-to-ground communication link with the Q / V band ground station; the satellite-to-ground user communication payload is connected to the Ka communication antenna to realize the satellite-to-ground communication link with the Ka band ground user terminal.

[0014] In some embodiments of the present application, after the satellite-to-ground feed communication payload performs a data downlink operation on the remote sensing data that meets the preset conditions, it also includes: the ground station downlinks the remote sensing data that meets the preset conditions to the ground user via a multi-hop inter-satellite link and / or a multi-hop gateway-satellite link.

[0015] A second aspect of the present application provides an electronic device, including a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the methods described in each embodiment.

[0016] A third aspect of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method described in each embodiment is implemented.

[0017] A fourth aspect of the present application provides a computer program product, including a computer program, which implements the methods described in each embodiment when executed by a processor.

[0018] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: In each embodiment of the present application, the working method of the satellite communication remote sensing fusion system includes a remote sensing camera, a high-precision clock, an integrated task management and control unit, a satellite-to-ground feed communication payload and a satellite-to-ground user communication payload, and the remote sensing camera, the high-precision clock, and the payload unit are all connected to the integrated task management and control unit; in the method, the time synchronization of the various components of the system is achieved through the high-precision clock and the integrated task management and control unit, and the time consistency of all components in the system is ensured through the high-precision clock and the integrated task management and control unit. This is particularly important for the collection of remote sensing data, because accurate time synchronization can greatly improve the accuracy and reliability of data, especially when dealing with dynamically changing surface or environmental conditions; on the basis of time synchronization, the integrated task control unit receives the user remote sensing requirements sent by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload and parses the user remote sensing requirements to obtain the parsing results, and issues instructions to the remote sensing camera based on the parsing results. This precise control enables the remote sensing camera to effectively capture the required data, reduce the capture of irrelevant data, and improve the efficiency and quality of data collection; the remote sensing camera shoots according to the instructions and sends the remote sensing data to the integrated task control unit. The integrated task control unit determines the best spectrum for data transmission based on the spectrum sensing information, which not only optimizes the use of spectrum resources, but also ensures the efficiency and security of data transmission. Moreover, under the preset conditions, selecting the best spectrum can reduce interference and packet loss in data transmission, and improve the integrity and transmission rate of data; the integrated task control unit determines the spectrum selection for data transmission based on the spectrum sensing information, and transmits the remote sensing data based on the determined spectrum when the preset conditions are met. In summary, the working method of the satellite communication remote sensing fusion system provides an efficient, accurate and responsive fusion solution for satellite communication and satellite remote sensing. Through the time synchronization of high-precision clocks, intelligent instruction processing of integrated task control units, and effective use of spectrum sensing information, the system can reduce the amount of remote sensing data transmission while ensuring the timeliness and transmission rate of remote sensing information transmission. It should be understood that the above general description and the detailed description below are only exemplary and explanatory and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a satellite communication remote sensing fusion system in an exemplary embodiment of the present application; Figure 2It is a schematic diagram of the working method steps of a satellite communication remote sensing fusion system in an exemplary embodiment of the present application; Figure 3 is a schematic structural diagram of another satellite communication remote sensing fusion system in an exemplary embodiment of the present application; Figure 4 is a flow chart of a working method of a satellite communication remote sensing fusion system in an exemplary embodiment of the present application; Figure 5 It is a schematic diagram of a step of downloading the remote sensing data based on a determined frequency spectrum when a preset condition is met in an exemplary embodiment of the present application; Figure 6 It is a schematic diagram of the structure of an electronic device provided by an exemplary embodiment of the present application.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0022] Satellite remote sensing technology has continued to develop over time, and the resolution and acquisition frequency of satellite remote sensing images have also continued to improve, resulting in a geometric growth in the amount of satellite remote sensing image data.

[0023] However, existing technologies have problems such as bandwidth limitations, transmission delays, and high data management costs. On the one hand, the bandwidth of satellite communications is very limited, making it difficult to cope with the transmission needs of large amounts of remote sensing data. On the other hand, the transmission link is susceptible to interference, which greatly increases the delay in remote sensing data transmission and affects the real-time nature of remote sensing services. In addition, massive amounts of remote sensing data require higher data management costs, and processing data consumes a lot of computing resources.

[0024] To this end, in some embodiments of the present application, a working method of a satellite communication remote sensing fusion system is provided. Figure 1 The structure diagram of the remote sensing data processing system of satellite communication is shown as follows: Figure 1 As shown, the system includes a remote sensing camera 101, a high-precision clock 102, an integrated task control unit 103, a satellite-to-ground feed communication load 104, and a satellite-to-ground user communication load 105. The remote sensing camera 101, the high-precision clock 102, the satellite-to-ground feed communication load 104, and the satellite-to-ground user communication load 105 are all connected to the integrated task control unit 103; Figure 2It is a schematic diagram of the working method and steps of a satellite communication remote sensing fusion system. Figure 2 As shown, the method includes steps S11-S15. S11. Realize time synchronization among the components of the system through the high-precision clock and the comprehensive task management and control unit.

[0025] The above components of the system work together to ensure accurate data collection and effective transmission. For example, the remote sensing camera can be a high-resolution optical camera for capturing detailed images of the surface. The high-precision clock, which can be a rubidium atomic clock, is used to provide accurate time tags to ensure that all data has the correct time stamp for subsequent processing and analysis. The integrated mission control unit is the command center of the system, responsible for coordinating the operation of various components, analyzing user remote sensing needs, issuing instructions, managing data transmission, and possessing advanced data processing and decision-making capabilities, and can handle complex data streams and user requests in real time.

[0026] The high-precision clock generates a 1PPS signal, which is used for time correction. The integrated task control unit sends the time correction information to other components, which can achieve time synchronization of the components of the entire system. The time synchronization between all load units (same component) in the system is achieved through the high-precision clock and the integrated task control unit, ensuring the time consistency of all components in the system.

[0027] Figure 3 This is another schematic diagram of the structure of a satellite communication remote sensing fusion system. Figure 3 As shown, the satellite-to-ground feed communication payload is connected to the Q / V communication antenna to realize the satellite-to-ground communication link with the Q / V band ground station; the satellite-to-ground user communication payload is connected to the Ka communication antenna to realize the satellite-to-ground communication link with the Ka band ground user terminal.

[0028] In a specific implementation, the time synchronization between the components is achieved through the high-precision clock and the integrated task control unit, including: the high-precision clock generates a 1PPS signal, and the 1PPS (one pulse per second) signal is used for time correction; the integrated task control unit distributes the 1PPS signal to the other components, namely the remote sensing camera, the satellite-to-ground feed communication payload and the satellite-to-ground user communication payload to achieve time synchronization between the components of the system. You can also refer to Figure 4 , Figure 4 A simplified flow chart of a working method of a satellite communication remote sensing fusion system is shown, as Figure 4As shown in the figure, the time correction and synchronization steps are implemented through high-precision clocks and integrated task control units. The 1PPS signal generated by the high-precision clock is used to calibrate the operating time of all components in the system, which ensures that all data acquisition and processing activities are based on a unified time standard, thereby improving the consistency and comparability of the data.

[0029] S12. On the basis of time synchronization, the integrated task control unit receives the user remote sensing requirements sent by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload and analyzes the user remote sensing requirements to obtain analysis results.

[0030] In one possible implementation, refer to Figure 4 On the basis of time synchronization, the integrated task control unit receives the user remote sensing requirements transmitted by the satellite-to-ground user communication payload and analyzes the user remote sensing requirements to determine whether the user remote sensing requirements meet the requirement conditions; if the requirement conditions are not met, the user is notified to change the user remote sensing requirements; if the requirement conditions are met, the analysis result is obtained.

[0031] Specifically, the integrated mission control unit receives requirements from ground users through the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload. These requirements may include image capture requests for specific areas, data collection requirements at specific times, etc. When users report remote sensing requirements, they can upload them to the satellite-to-ground user communication payload through the ground user terminal; they can also upload them to the satellite-to-ground feed communication payload through the ground gateway. At the same time, these requirements can be transferred to the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload through multi-hop intersatellite links and / or multi-hop gateway-satellite links. If a ground gateway receives the user's remote sensing requirements, it can upload these requirements to the nearest or most suitable satellite for reception. If the satellite does not have the ability to perform the mission or is not above the target area, the requirements will be forwarded to other satellites through intersatellite links (i.e., communication links between satellites) or gateway-satellite links (i.e., communication links between ground gateways and satellites). This multi-hop transmission method can increase the flexibility and coverage of the system and ensure that the requirements can be handled in a timely and effective manner.

[0032] The user's remote sensing requirements are first decoded and classified by the integrated mission control unit, which converts the user's input into a format that the system can understand, such as geographic coordinates, time window, required image resolution, etc. Before converting the requirements into specific operation instructions, the system needs to verify whether these requirements meet the preset requirements. These conditions may include the legality, practicality and executability of the requirements. For example, the integrated mission control unit will check whether the requested area is within the coverage of the current satellite, whether the requested time is reasonable, and whether the required resources (such as resolution and bandwidth) are available.

[0033] If the user's remote sensing needs meet all the requirements, the integrated task control unit generates corresponding instructions and sends them to the remote sensing camera. These instructions accurately specify the time, location and technical parameters of the shooting. If the needs do not meet the conditions, the integrated task control unit will not generate shooting instructions, but can choose to notify the user of the unreasonableness or infeasibility of the remote sensing needs, and notify the user to provide more information or modify the needs, and then analyze the modified user remote sensing needs.

[0034] The core function of the integrated mission control unit is to receive and analyze user remote sensing requirements from the satellite-to-ground user communication payload in real time, which can include disaster emergency response, environmental monitoring requests or other scientific research data requirements. This step ensures that the system can respond to external requests quickly and accurately, and adjust data collection strategies and priorities. On the basis of time synchronization, the system includes a high-precision clock and an integrated mission control unit to work together to ensure that all remote sensing data collection and processing are carried out within a precise time frame. This is especially critical for time-sensitive remote sensing missions, such as disaster monitoring and emergency response, because they rely on fast and synchronized data collection and analysis, which reflects the integration of satellite communications and remote sensing services.

[0035] S13. The integrated task control unit sends instructions to the remote sensing camera based on the analysis result.

[0036] The integrated task control unit obtains instructions to be sent to the remote sensing camera based on the analysis results; the integrated task control unit performs the task scheduling function and sends the instructions to the remote sensing camera. Based on the analysis results, the integrated task control unit calculates and issues specific shooting instructions to the remote sensing camera. These instructions specify the shooting time, location, required resolution and spectral band information in detail, so that data collection can meet specific needs as accurately as possible.

[0037] It can be understood that through the intelligent processing of the integrated task control unit, the system can respond quickly after receiving the user's remote sensing needs. The integrated task control unit not only analyzes the needs and quickly assigns tasks to remote sensing cameras and performs data downlink, but also optimizes the selection of downlink spectrum to ensure that the response time is minimized while meeting the user's urgent needs.

[0038] S14. The remote sensing camera takes pictures according to the instruction and sends the remote sensing data to the integrated task management and control unit.

[0039] In a possible implementation, the remote sensing camera receives an instruction sent by the integrated task control unit; the remote sensing camera takes pictures according to the time and position corresponding to the instruction, and sends the captured remote sensing data back to the integrated task control unit.

[0040] Specifically, once the user's remote sensing needs are verified and the corresponding instructions are generated, these instructions will be sent to the remote sensing camera. The remote sensing camera adjusts its operating parameters, such as focal length, exposure time, etc., according to the received instructions to capture the required image data. The remote sensing camera performs the shooting task at the specified time and location, and then sends the captured data back to the integrated task control unit. These data will then be determined whether to be downlinked based on spectrum resources and preset conditions.

[0041] S15. The integrated task control unit determines the spectrum selection for data downlink according to the spectrum sensing information, and downlinks the remote sensing data based on the determined spectrum under preset conditions.

[0042] Spectrum sensing information mainly includes spectrum occupancy status. The integrated task control unit continuously monitors the usage rate of specific frequency bands, that is, real-time data about which frequency bands are currently occupied and which frequency bands are relatively idle. Spectrum sensing information also includes signal quality and geographic location dependence, evaluating the signal quality of each frequency band, including signal-to-noise ratio (SNR) and interference level. This data is crucial for avoiding high-interference frequency bands.

[0043] The integrated task control unit receives a signal from a ground station or a ground user transmitted by the satellite-to-ground feed communication load or the satellite-to-ground user communication load; the integrated task control unit analyzes the signal from the ground station or the ground user to obtain spectrum sensing information; the integrated task control unit determines a spectrum to be used for data downlink based on the spectrum sensing information.

[0044] When analyzing the signal, the integrated task control unit can compare the congestion level, signal quality and other relevant parameters of different frequency bands through algorithms. Based on this information, the integrated task control unit will select the most suitable frequency band for data downlink. For example, select those frequency bands with the lowest interference and the lowest utilization rate to ensure the reliability and lowest delay of data transmission. In addition, considering the urgency and importance of remote sensing data, the system may give priority to frequency bands with larger bandwidth and lower transmission cost to obtain the best spectrum sensing information.

[0045] Before the remote sensing data is downloaded based on the determined spectrum when the preset conditions are met, the integrated task control unit detects the target in the remote sensing data, wherein the detection method is implemented by a lightweight AI model built into the integrated task control unit. When the preset conditions are met, the remote sensing data is downloaded based on the determined spectrum, such as Figure 5 As shown, steps S151-S153 are included.

[0046] S151. If the probability that the integrated task control unit detects the target exceeds a preset threshold, it is deemed to meet the preset conditions.

[0047] For example Figure 4 As shown, advanced image processing algorithms, i.e. lightweight AI models built into the integrated mission control unit, can be used to detect key features and changes in images. The integrated mission control unit has a built-in lightweight AI model that is specifically designed to efficiently process and analyze remote sensing data. The main function of the lightweight AI model is to quickly and accurately detect targets in remote sensing data. It uses image processing algorithms to identify key features and changes in images, such as mutations or abnormal activities in specific areas. If the changes detected by the model, i.e. the probability of detecting the target, exceed a preset threshold, such as mutations or abnormal activities in a specific area, the data is marked as high priority data and is deemed to meet the preset conditions. This step ensures that only the most critical information is downloaded first, effectively saving bandwidth and improving response speed.

[0048] S152. The integrated task control unit instructs the satellite-to-ground feed communication load or the satellite-to-ground user communication load to start data downlink on the data downlink standby spectrum.

[0049] Once it is determined that the probability of detecting the target exceeds a preset threshold, the integrated mission control unit sends a command to the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload to start data downlink.

[0050] S153: The satellite-to-ground feed communication payload or the satellite-to-ground user communication payload performs a data downlink operation on the remote sensing data that meets the preset conditions with the highest communication priority.

[0051] In one implementation, after receiving the downlink instruction, the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload quickly downlinks the remote sensing data to the ground station through the selected spectrum with the highest communication priority. During the data transmission process, the spectrum usage and communication quality are also monitored in real time to ensure the stability and security of data transmission.

[0052] In another scenario of multi-satellite collaboration, after the satellite-to-ground feed communication payload performs a data downlink operation on remote sensing data that meets preset conditions, it also includes: the ground station downlinks the remote sensing data that meets the preset conditions to ground users through a multi-hop intersatellite link and / or a multi-hop gateway-satellite link. This multi-hop transmission mechanism not only enhances the reliability of data transmission, but also improves the flexibility and coverage of the system. Correspondingly, there is also a flexible way to upload the user's remote sensing needs. In certain cases, if the satellite directly reported by the user has a remote sensing function and happens to be located above the target remote sensing area, the satellite will directly perform the remote sensing task. Otherwise, the remote sensing demand will be distributed to the target satellite that can perform the task through a multi-hop intersatellite link or a multi-hop gateway-satellite link or a hybrid link of the two. It can be seen that collaboration between multiple satellites can be achieved through this application. The target satellites here refer to those satellites that have the functions required to perform specific remote sensing tasks. For example, if a user's remote sensing demand is to obtain images of a specific area, then a satellite with corresponding remote sensing camera functions and capable of flying over the specific area is considered a target satellite. It can be understood that the working method of the satellite communication and remote sensing fusion system described in each embodiment of the present application provides an efficient, accurate and responsive fusion solution for satellite communication and satellite remote sensing. Through the time synchronization of high-precision clocks, intelligent command processing of the integrated task control unit, and effective use of spectrum sensing information, the system can reduce the amount of remote sensing data transmission while ensuring the timeliness and transmission rate of remote sensing information transmission.

[0053] Please refer to the following Figure 6 , which shows a schematic diagram of an electronic device provided by some embodiments of the present application. Figure 6 As shown, the electronic device 2 includes: a processor 200, a memory 201, a bus 202 and a communication interface 203, and the processor 200, the communication interface 203 and the memory 201 are connected via the bus 202; the memory 201 stores a computer program that can be run on the processor 200, and when the processor 200 runs the computer program, it executes the working method of the satellite communication remote sensing fusion system provided in any of the aforementioned embodiments of the present application.

[0054] The memory 201 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 203 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0055] The bus 202 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 201 is used to store programs, and the processor 200 executes the programs after receiving execution instructions. The control method disclosed in any implementation of the above-mentioned embodiment of the present application may be applied to the processor 200, or implemented by the processor 200.

[0056] The processor 200 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 200. The above processor 200 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and completes the steps of the working method of the satellite communication remote sensing fusion system in combination with its hardware.

[0057] An embodiment of the present application also provides a computer-readable storage medium corresponding to the working method of the satellite communication remote sensing fusion system provided in the aforementioned embodiment, on which a computer program is stored. When the computer program is run by a processor, it will execute the working method of the satellite communication remote sensing fusion system provided in any of the aforementioned embodiments.

[0058] In addition, examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0059] In addition, an embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the working method of the satellite communication remote sensing fusion system provided by any of the aforementioned embodiments.

[0060] Those skilled in the art will appreciate that the various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components of the virtual machine creation device according to the embodiments of the present application.

[0061] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A working method of a satellite communication remote sensing fusion system, characterized in that: The system includes a remote sensing camera, a high-precision clock, an integrated task control unit, a satellite-to-ground feed communication load, and a satellite-to-ground user communication load, wherein the remote sensing camera, the high-precision clock, the satellite-to-ground feed communication load, and the satellite-to-ground user communication load are all connected to the integrated task control unit; the method includes: Time synchronization among components of the system is achieved through the high-precision clock and the integrated task control unit; On the basis of time synchronization, the integrated task control unit receives the user remote sensing demand sent by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload and analyzes the user remote sensing demand to obtain an analysis result; The integrated task control unit issues a command to the remote sensing camera based on the analysis result; The remote sensing camera takes pictures according to the instruction and sends the remote sensing data to the integrated task control unit; The integrated task control unit determines the spectrum selection for data downlink according to the spectrum sensing information, and downlinks the remote sensing data based on the determined spectrum when the preset conditions are met.

2. The working method of the satellite communication remote sensing fusion system according to claim 1, characterized in that: The time synchronization among the components of the system is achieved by using the high-precision clock and the comprehensive task control unit, including: The high-precision clock generates a 1PPS signal, and the 1PPS signal is used for time correction; The integrated task control unit distributes the 1PPS signal to the remote sensing camera, the satellite-to-ground feed communication payload, and the satellite-to-ground user communication payload to achieve time synchronization among the components of the system.

3. The working method of the satellite communication remote sensing fusion system according to claim 2 is characterized in that: The step of analyzing the user's remote sensing requirements to obtain an analysis result includes: Analyzing the user's remote sensing demand to determine whether the user's remote sensing demand meets the demand conditions; If the requirement is not met, the user is notified to change the user remote sensing requirement; if the requirement is met, the analysis result is obtained.

4. The working method of the satellite communication remote sensing fusion system according to claim 1, characterized in that: The remote sensing camera takes pictures according to the instruction and sends the remote sensing data to the integrated task control unit, including: The remote sensing camera receives the instruction sent by the integrated task control unit; The remote sensing camera takes pictures according to the time and position corresponding to the instruction, and sends the remote sensing data obtained by the pictures back to the comprehensive task management and control unit.

5. The working method of the satellite communication remote sensing fusion system according to claim 2, characterized in that: The integrated task control unit determines spectrum selection for data downlink according to spectrum sensing information, including: The integrated task control unit receives a signal from a ground station or a ground user transmitted by the satellite-to-ground feed communication payload or the satellite-to-ground user communication payload; The integrated task control unit analyzes the signal from the ground station or the ground user to obtain spectrum sensing information; The integrated task control unit determines a spectrum to be used for data downlink according to the spectrum sensing information.

6. The working method of the satellite communication remote sensing fusion system according to claim 5, characterized in that: Before the remote sensing data is downloaded based on the determined spectrum when the preset conditions are met, it also includes: the integrated task control unit detects targets in the remote sensing data, wherein the detection method is implemented by a lightweight AI model built into the integrated task control unit.

7. The working method of the satellite communication remote sensing fusion system according to claim 6, characterized in that: The step of downloading the remote sensing data based on the determined frequency spectrum when the preset condition is met includes: If the probability of the integrated task control unit detecting the target exceeds a preset threshold, it is deemed to meet the preset conditions; The remote sensing data that meets the preset conditions will be transmitted with the highest communication priority.

8. The working method of the satellite communication remote sensing fusion system according to claim 7 is characterized in that: The remote sensing data that meets the preset conditions is transmitted with the highest communication priority, including The integrated task control unit instructs the satellite-to-ground feed communication load or the satellite-to-ground user communication load to start data downlink on the data downlink standby spectrum; The satellite-to-ground feed communication load or the satellite-to-ground user communication load performs a data downlink operation on the remote sensing data that meets preset conditions with the highest communication priority.

9. The working method of the satellite communication remote sensing fusion system according to claim 1, characterized in that: The satellite-to-ground feed communication payload is connected to the Q / V communication antenna to realize the satellite-to-ground communication link with the Q / V frequency band ground station; the satellite-to-ground user communication payload is connected to the Ka communication antenna to realize the satellite-to-ground communication link with the Ka frequency band ground user terminal.

10. The working method of the satellite communication remote sensing fusion system according to claim 8, characterized in that: After the satellite-to-ground feed communication payload performs a data downlink operation on the remote sensing data that meets the preset conditions, it also includes: the ground station downlinks the remote sensing data that meets the preset conditions to the ground user via a multi-hop inter-satellite link and / or a multi-hop gateway-satellite link.

11. An electronic device comprising a memory and a processor, characterized in that: The memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the method according to any one of claims 1 to 10.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 10 is implemented.

13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 10 is implemented.

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