A control system and method based on low-orbit satellite climbing process

Abstract

The present invention discloses a control system and method based on a low-orbit satellite climbing process, and belongs to the technical field of low-orbit satellite control. The method comprises: obtaining a low-orbit satellite climbing difference evaluation value by comprehensive analysis based on standard satellite climbing data at each time monitoring point and actual satellite climbing data at each time monitoring point; obtaining a low-orbit satellite communication signal quality index by comprehensive analysis based on satellite communication signal data, obtaining a low-orbit satellite climbing state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climbing difference evaluation value; judging whether to perform climbing orbit correction according to the low-orbit satellite climbing state evaluation value, obtaining a satellite resource demand evaluation value according to matching of the low-orbit satellite climbing difference evaluation value, and regulating and controlling the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value, thereby realizing intelligent regulation and control of the low-orbit satellite.

Description

Technical Field

[0001] The present invention relates to the field of low-orbit satellite control technology, and in particular to a control system and method based on a low-orbit satellite climbing process. Background Art

[0002] As people's demand for high-speed, low-latency communications continues to increase, low-orbit satellites have become the key to building a global satellite communication network due to their advantages such as close to the ground, low transmission delay, and large bandwidth. However, due to factors such as atmospheric resistance, the orbital altitude of low-orbit satellites will gradually decrease. In order to ensure the quality of communication services, orbit climbing is required. By climbing and adjusting the orbit, a wider area can be covered and continuous monitoring of specific targets can be achieved.

[0003] The existing low-orbit satellite climb control system mainly determines the target orbit and climb trajectory through orbital mechanics models, controls the satellite propulsion system according to orbit planning, uses attitude sensors to measure satellite attitude changes, manages satellite energy and ground control centers to monitor satellite status in real time, receives telemetry data and analyzes and processes it.

[0004] For example, the invention patent with announcement number CN104483973B announces a low-orbit flexible satellite attitude tracking control method based on a sliding mode observer, including: establishing a geocentric inertial coordinate system and a satellite body coordinate system; establishing a state space expression; determining the upper bound of the interference signal received by the observer; solving the observer gain matrix, the observer matching matrix and the Lyapunov equation matrix variables; obtaining the estimated modal vibration velocity value of the sliding film observer and the estimated modal vibration state value of the sliding film observer after observation; rewriting the flexible satellite attitude dynamics equation into an error attitude tracking control model; determining the sliding mode term gain of the control law; and tracking and controlling the error attitude tracking model using the sliding mode control law based on the measured satellite attitude quaternion, attitude angular velocity information and estimated modal value.

[0005] For example, the invention patent announcement number: CN112947529B discloses an attitude maneuvering path planning method for a low-orbit communication satellite to avoid frequency interference, including: S1, obtaining the current latitude argument of the low-orbit communication satellite, and judging whether the beam shutdown area has been reached according to the current latitude argument, and if so, proceeding to step S2; S2, planning the command attitude angle using a segmented sinusoidal angular acceleration change rate planning method; S3, calculating the constraints for attitude maneuvering path planning; S4, selecting an objective function according to actual needs, and solving the planning path parameters of the objective function that meets the constraints.

[0006] However, in the process of implementing the technical solution of the present invention, the present invention finds that the above technology has at least the following technical problems:

[0007] In the prior art, as low-orbit satellites are climbing, the interference they experience changes continuously as their altitude changes, which affects the stability of the satellite in orbit and makes it impossible to accurately control its attitude and orbit, causing it to deviate from the predetermined orbital path, leading to the problem of excessive consumption of low-orbit satellite resources. Summary of the invention

[0008] The present invention provides a control system and method based on the climbing process of a low-orbit satellite, thereby solving the problem in the prior art that during the climbing process of a low-orbit satellite, as the altitude continuously changes, the interference to the satellite also continuously changes, resulting in the stability of the satellite in orbit being affected, and the inability to accurately control its attitude and orbit, thereby deviating from the predetermined orbital path, resulting in excessive consumption of low-orbit satellite resources, and realizing intelligent adjustment and control of the low-orbit satellite.

[0009] The present invention provides a control system based on a low-orbit satellite climbing process, comprising: a climbing state evaluation module, a communication state evaluation module, a climbing control module and a climbing control database; wherein the climbing state evaluation module is used to monitor the satellite climbing orbit height in real time, and obtain standard satellite climbing data at each time monitoring point according to the satellite climbing orbit height, obtain actual satellite climbing data at each time monitoring point, and obtain a low-orbit satellite climbing difference evaluation value through comprehensive analysis based on the standard satellite climbing data at each time monitoring point and the actual satellite climbing data at each time monitoring point; the communication state evaluation module is used to obtain satellite communication signal data, obtain a low-orbit satellite communication signal quality index according to comprehensive analysis based on the satellite communication signal data, and obtain a low-orbit satellite climbing state evaluation value according to comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climbing difference evaluation value; the climbing control module is used to determine whether to perform climbing orbit correction according to the low-orbit satellite climbing state evaluation value, obtain satellite resource data, obtain a satellite resource demand evaluation value according to matching of the low-orbit satellite climbing difference evaluation value, and adjust and control the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value.

[0010] Furthermore, the step of obtaining standard satellite climb data for each time monitoring point according to the satellite climb orbit altitude includes: the standard satellite climb data includes a reference satellite inclination, a reference satellite speed and a reference satellite position; matching the satellite climb orbit altitude with the standard satellite climb data corresponding to each satellite climb orbit altitude preset in the climb control database to obtain the standard satellite climb data for each time monitoring point.

[0011] Furthermore, the step of obtaining a low-orbit satellite climb difference evaluation value by comprehensively analyzing the standard satellite climb data at each time monitoring point and the actual satellite climb data at each time monitoring point includes: obtaining an allowable deviation satellite inclination, an allowable deviation satellite speed and an allowable deviation straight-line position distance from a climb control database; the actual satellite climb data includes an actual satellite inclination, an actual satellite speed and an actual satellite position; and obtaining a low-orbit satellite climb difference evaluation value by comprehensively analyzing the standard satellite climb data and the actual satellite climb data at each time monitoring point.

[0012] Furthermore, the step of obtaining a low-orbit satellite communication signal quality index through comprehensive analysis of satellite communication signal data includes: the satellite communication signal data includes communication signal strength, signal frequency and phase offset; obtaining a critical communication signal strength, a reference signal frequency, an allowable deviation signal frequency and a critical phase offset from a climb control database; and obtaining a low-orbit satellite communication signal quality index through comprehensive analysis.

[0013] Furthermore, the step of obtaining a low-orbit satellite climb state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference evaluation value includes: obtaining a critical low-orbit satellite communication signal quality index and a critical low-orbit satellite climb difference evaluation value from a climb control database; and obtaining a low-orbit satellite climb state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index, the low-orbit satellite climb difference evaluation value, the critical low-orbit satellite communication signal quality index and the critical low-orbit satellite climb difference evaluation value.

[0014] Furthermore, the method for obtaining the low-orbit satellite climbing state evaluation value is as follows:

[0015] ;

[0016] In the formula, represents the low-orbit satellite climbing status assessment value, represents the climbing state assessment impact factor corresponding to the low-orbit satellite communication signal quality index, represents the climbing state assessment influencing factor corresponding to the low-orbit satellite climbing difference assessment value, Represents the low-orbit satellite communication signal quality index, represents the critical low-orbit satellite communication signal quality index, represents the low-orbit satellite climb difference assessment value, represents the critical low-orbit satellite climb difference assessment value, and e is a natural constant.

[0017] Furthermore, the step of regulating and controlling the low-orbit satellite based on the satellite resource data and the satellite resource demand assessment value includes: obtaining a satellite resource assessment value based on a comprehensive analysis of the satellite resource data; comparing the satellite resource assessment value with the satellite resource demand assessment value, and if the satellite resource assessment value is less than the satellite resource demand assessment value, issuing an early warning for the low-orbit satellite; if the satellite resource assessment value is greater than or equal to the satellite resource demand assessment value, marking the difference between the satellite resource assessment value and the satellite resource demand assessment value as a remaining satellite resource assessment value, and performing regulation and control based on the remaining satellite resource assessment value.

[0018] Furthermore, the step of obtaining a satellite resource assessment value based on a comprehensive analysis of satellite resource data includes: the satellite resource data includes propellant remainder, solar radiation intensity and battery power; obtaining a critical propellant remainder, a reference solar radiation intensity, an allowable deviation solar radiation intensity and a critical battery power from a climb control database; and obtaining a satellite resource assessment value through a comprehensive analysis.

[0019] Furthermore, the step of performing adjustment and control according to the remaining satellite resource evaluation values ​​includes: matching the remaining satellite resource evaluation values ​​with the satellite climb control levels corresponding to the remaining satellite resource evaluation values ​​preset in the climb control database to obtain the satellite climb control level, and performing adjustment and control on the low-orbit satellite according to the satellite climb control level.

[0020] The control method based on the low-orbit satellite climbing process comprises the following steps: real-time monitoring of the satellite climbing orbit height, and obtaining standard satellite climbing data at each time monitoring point according to the satellite climbing orbit height, obtaining actual satellite climbing data at each time monitoring point, and obtaining a low-orbit satellite climbing difference evaluation value through comprehensive analysis based on the standard satellite climbing data at each time monitoring point and the actual satellite climbing data at each time monitoring point; obtaining satellite communication signal data, obtaining a low-orbit satellite communication signal quality index according to comprehensive analysis based on the satellite communication signal data, and obtaining a low-orbit satellite climbing state evaluation value according to comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climbing difference evaluation value; judging whether to perform climbing orbit correction according to the low-orbit satellite climbing state evaluation value, obtaining satellite resource data, obtaining a satellite resource demand evaluation value according to matching of the low-orbit satellite climbing difference evaluation value, and regulating and controlling the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value.

[0021] One or more technical solutions provided by the present invention have at least the following technical effects or advantages:

[0022] 1. The present invention provides a control system and method based on the low-orbit satellite climbing process, thereby comprehensively and accurately evaluating the low-orbit satellite climbing state, and efficiently judging whether to perform climbing orbit correction based on the evaluation results, thereby achieving reasonable matching of satellite resource demand evaluation values, and scientifically adjusting and controlling the low-orbit satellite accordingly.

[0023] 2. The present invention makes an accurate judgment on whether to perform a climb orbit correction based on the low-orbit satellite climb status evaluation value, thereby being able to timely correct orbit deviations caused by various interference factors, ensuring that the satellite climbs strictly according to the predetermined orbit, thereby achieving improved satellite orbit stability.

[0024] 3. The present invention can reasonably allocate satellite resources by accurately adjusting and controlling low-orbit satellites based on satellite resource data and satellite resource demand assessment values, thereby improving the stability and reliability of satellites during the climbing process, reducing the risk of failures caused by insufficient or unreasonable resource allocation, ensuring the quality of satellite communication signals, and improving the success rate of satellites completing scheduled climbing tasks and entering the target orbit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a control system based on a low-orbit satellite climbing process provided in an embodiment of the present invention.

[0026] Figure 2 A graph showing changes in the quality index of a low-orbit satellite communication signal of a control system based on a low-orbit satellite climbing process provided by an embodiment of the present invention.

[0027] Figure 3 A flow chart of a control method based on a low-orbit satellite climbing process provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The embodiment of the present invention provides a control system and method based on the climbing process of a low-orbit satellite, which solves the problem in the prior art that during the climbing process of a low-orbit satellite, as the altitude changes continuously, the interference to the satellite also changes continuously, which affects the stability of the satellite in orbit, and makes it impossible to accurately control its attitude and orbit, thereby deviating from the predetermined orbital path, resulting in excessive consumption of low-orbit satellite resources. Figure 3A control method based on a low-orbit satellite climbing process, which monitors the satellite climbing orbit height in real time, obtains standard satellite climbing data at each time monitoring point according to the satellite climbing orbit height, obtains actual satellite climbing data at each time monitoring point, and obtains a low-orbit satellite climbing difference evaluation value according to a comprehensive analysis of the standard satellite climbing data at each time monitoring point and the actual satellite climbing data at each time monitoring point; obtains satellite communication signal data, obtains a low-orbit satellite communication signal quality index according to a comprehensive analysis of the satellite communication signal data, and obtains a low-orbit satellite climbing state evaluation value according to a comprehensive analysis of the low-orbit satellite communication signal quality index and the low-orbit satellite climbing difference evaluation value; determines whether to perform a climbing orbit correction according to the low-orbit satellite climbing state evaluation value, obtains satellite resource data, obtains a satellite resource demand evaluation value according to the matching of the low-orbit satellite climbing difference evaluation value, and adjusts and controls the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value, thereby realizing intelligent adjustment and control of the low-orbit satellite.

[0029] The technical solution in the embodiment of the present invention is to solve the problem that during the ascent of the above-mentioned low-orbit satellite, as the altitude changes continuously, the interference to the satellite also changes continuously, resulting in the stability of the satellite in orbit being affected, and the inability to accurately control its attitude and orbit, thereby deviating from the predetermined orbital path, resulting in excessive consumption of low-orbit satellite resources. The overall idea is as follows:

[0030] By monitoring the satellite climbing orbit height in real time, the standard satellite climbing data of each time monitoring point is obtained based on it, and the corresponding actual satellite climbing data is collected at the same time; the standard and actual satellite climbing data of each time monitoring point are comprehensively compared to obtain the low-orbit satellite climbing difference evaluation value, which measures the deviation between the actual satellite climbing and the expected. In addition, the satellite communication signal data is obtained, and the low-orbit satellite communication signal quality index is obtained through analysis to characterize the quality of the communication signal. The two evaluation values ​​are comprehensively analyzed to obtain the low-orbit satellite climbing state evaluation value, and the satellite climbing state is comprehensively evaluated from the two aspects of orbit climbing and communication signal; evaluation feedback is given based on the low-orbit satellite climbing state evaluation value to determine whether the climbing orbit correction is needed. If the evaluation result shows that there is a deviation in the orbit, corrective measures are taken in time to ensure that the satellite climbs along the correct orbit; satellite resource data is obtained, and the satellite resource demand evaluation value is matched based on the low-orbit satellite climbing difference evaluation value. Finally, the low-orbit satellite is adjusted and controlled according to the satellite resource data and demand evaluation value, and satellite resources are reasonably allocated to ensure the stable operation of the satellite during the climbing process and the normal realization of various functions.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1, which is a schematic diagram of the structure of a control system based on a low-orbit satellite climbing process provided by an embodiment of the present invention. The control system based on a low-orbit satellite climbing process provided by an embodiment of the present invention comprises: a climbing state evaluation module, a communication state evaluation module, a climbing control module and a climbing control database; wherein the climbing state evaluation module is used to monitor the satellite climbing orbit height in real time, and obtain standard satellite climbing data at each time monitoring point according to the satellite climbing orbit height, obtain actual satellite climbing data at each time monitoring point, and obtain low-orbit satellite climbing data according to comprehensive analysis of the standard satellite climbing data at each time monitoring point and the actual satellite climbing data at each time monitoring point. the communication status evaluation module is used to obtain satellite communication signal data, obtain the low-orbit satellite communication signal quality index according to the comprehensive analysis of the satellite communication signal data, and obtain the low-orbit satellite climb state evaluation value according to the comprehensive analysis of the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference evaluation value; the climb control module is used to determine whether to perform a climb orbit correction according to the low-orbit satellite climb state evaluation value, obtain satellite resource data, obtain the satellite resource demand evaluation value according to the matching of the low-orbit satellite climb difference evaluation value, and adjust and control the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value.

[0033] In this embodiment, when judging whether to perform climbing orbit correction according to the low-orbit satellite climbing state evaluation value, the low-orbit satellite climbing state evaluation value can be compared with the low-orbit satellite climbing state evaluation threshold preset in the climbing control database. If the low-orbit satellite climbing state evaluation value is less than the low-orbit satellite climbing state evaluation threshold, the orbit correction is performed. If the low-orbit satellite climbing state evaluation value is greater than or equal to the low-orbit satellite climbing state evaluation threshold, no subsequent operation is performed. The climbing state evaluation module can timely discover abnormal conditions in the satellite climbing process and provide a basis for subsequent decision-making; the communication state evaluation module not only pays attention to the physical climbing state of the satellite, but also pays attention to its communication capability to ensure that the satellite can maintain a stable communication connection during the climbing process; the climbing control module can flexibly adjust the satellite's climbing trajectory and resource allocation according to actual conditions to ensure that the satellite can efficiently and stably complete the climbing process. The present invention can flexibly adjust resource allocation according to the actual needs and resource conditions of the satellite to avoid waste and excessive use of resources; through precise control and adjustment, the system can ensure that the satellite maintains the best state during the climbing process, thereby improving the performance and reliability of the entire satellite system.

[0034] In addition, the climb control database is used to store relevant data of the control system based on the low-orbit satellite climb process, including the allowable deviation satellite inclination, the allowable deviation satellite speed, the allowable deviation straight-line position distance, the climb difference assessment influencing factor corresponding to the satellite inclination, the low-orbit satellite communication signal quality index threshold and the standard satellite climb data corresponding to each satellite climb orbit height. The data in the climb control database can be obtained through inquiries on public satellite data service platforms such as the Land Observation Satellite Data Service Platform and the Natural Resources Satellite Remote Sensing Cloud Service Platform, and can also be obtained through cooperation with scientific research institutions related to the space agency and satellite manufacturers.

[0035] Furthermore, the step of obtaining standard satellite climb data for each time monitoring point according to the satellite climb orbit altitude includes: the standard satellite climb data includes a reference satellite inclination, a reference satellite speed and a reference satellite position; matching the satellite climb orbit altitude with the standard satellite climb data corresponding to each satellite climb orbit altitude preset in the climb control database to obtain the standard satellite climb data for each time monitoring point.

[0036] In this embodiment, the standard satellite climb data is a set of preset key parameters in the satellite climb process based on theory or historical experience. When matching, the satellite climb orbit height and the standard satellite climb data corresponding to each satellite climb orbit height form a mapping set. According to the satellite climb orbit height input mapping set, the standard satellite climb data corresponding to the satellite climb orbit height can be obtained. By comparing with these standard data, abnormal conditions in the satellite climb process, such as orbit deviation, speed abnormality, etc., can be discovered in time.

[0037] Furthermore, the step of obtaining a low-orbit satellite climb difference evaluation value by comprehensive analysis based on the standard satellite climb data and the actual satellite climb data at each time monitoring point includes: obtaining an allowable deviation satellite inclination, an allowable deviation satellite speed and an allowable deviation straight-line position distance from a climb control database; the actual satellite climb data includes the actual satellite inclination, the actual satellite speed and the actual satellite position, extracting the straight-line distance between the reference satellite position and the actual satellite position at each time monitoring point, and marking it as the satellite deviation straight-line distance at each time monitoring point; and obtaining a low-orbit satellite climb difference evaluation value by comprehensive analysis based on the standard satellite climb data and the actual satellite climb data at each time monitoring point.

[0038] The method for obtaining the low-orbit satellite climb difference evaluation value is as follows:

[0039] ;

[0040] In the formula, represents the low-orbit satellite climb difference assessment value, represents the impact factor of the climb difference assessment corresponding to the satellite inclination, represents the impact factor of the climb difference assessment corresponding to the satellite speed, represents the impact factor of the climb difference assessment corresponding to the satellite position, represents the actual satellite inclination at the i-th time monitoring point, represents the reference satellite inclination of the i-th time monitoring point, represents the allowable deviation satellite inclination of the i-th time monitoring point, represents the actual satellite speed at the i-th time monitoring point, represents the reference satellite velocity at the i-th time monitoring point, represents the allowable deviation satellite velocity at the i-th time monitoring point, represents the satellite deviation straight-line distance of the i-th time monitoring point, It represents the allowable deviation straight-line position distance of the i-th time monitoring point, where i is the number of each time monitoring point, i=1,2,3,...,N, and N is the total number of time monitoring points.

[0041] , and The low-orbit satellite climb difference assessment impact factors corresponding to the satellite inclination, satellite speed and satellite deviation straight-line distance preset in the climb control database respectively represent the numerical values ​​of the influence degree of satellite inclination, satellite speed and satellite deviation straight-line distance on the low-orbit satellite climb difference assessment value, and can be directly obtained from the climb control database when used. The mapping relationship between satellite inclination, satellite speed and satellite deviation straight-line distance and their corresponding low-orbit satellite climb difference assessment impact factors is organized into a "mapping set", that is, a lookup table or corresponding rules. When the value of the actual satellite climb data is actually monitored, this value can be searched according to the corresponding mapping set, and then the corresponding low-orbit satellite climb difference assessment impact factor can be obtained. This impact factor is a number between 0 and 1, which represents the evaluation result of the interference degree of the current actual satellite climb data on the low-orbit satellite climb difference assessment value. For example, for satellite inclination, there are satellite inclination and low-orbit satellite climb difference assessment influence factors corresponding to satellite inclination as a mapping set. By inputting the value of satellite inclination, the low-orbit satellite climb difference assessment influence factors corresponding to satellite inclination can be obtained; for satellite speed, there are satellite speed and low-orbit satellite climb difference assessment influence factors corresponding to satellite speed as a mapping set. By inputting the value of satellite speed, the low-orbit satellite climb difference assessment influence factors corresponding to satellite speed can be obtained; for satellite deviation straight-line distance, there are satellite deviation straight-line distance and low-orbit satellite climb difference assessment influence factors corresponding to satellite deviation straight-line distance as a mapping set. By inputting the value of satellite deviation straight-line distance, the low-orbit satellite climb difference assessment influence factors corresponding to satellite deviation straight-line distance can be obtained. These mapping relationships can be many-to-one or one-to-one.

[0042] In this embodiment, the satellite inclination refers to the angle between the satellite flight direction and the vertical line of the earth's equator. The actual value of the satellite inclination can be accurately obtained by using the inertial measurement unit on the satellite combined with ground radar tracking measurement; the satellite speed refers to the speed of the satellite in orbit, which can be directly measured using the speed measuring device carried by the satellite itself, such as a Doppler velocimeter; the satellite position refers to the coordinate position of the satellite in space with the center of the earth as the origin, which can be directly measured using satellite navigation systems such as GPS and Beidou. The three are interrelated. For example, the adjustment of speed may also affect the satellite inclination, because changing the direction of the propulsion force of the speed may produce torque on the orbital plane, thereby changing the satellite inclination; when the satellite is in different positions, its speed is changing. The satellite speed is fast at the perigee of the orbit, and slow at the apogee. The low-orbit satellite climb difference evaluation value obtained by comprehensive analysis can better predict the difference between the actual trajectory and the estimated trajectory of the satellite during the satellite climb phase, and then optimize the orbit adjustment and navigation strategy to ensure that the satellite can accurately reach the predetermined orbit.

[0043] Furthermore, the step of obtaining a low-orbit satellite communication signal quality index through comprehensive analysis of satellite communication signal data includes: the satellite communication signal data includes communication signal strength, signal frequency and phase offset; obtaining a critical communication signal strength, a reference signal frequency, an allowable deviation signal frequency and a critical phase offset from a climb control database; and obtaining a low-orbit satellite communication signal quality index through comprehensive analysis.

[0044] The method for obtaining the low-orbit satellite communication signal quality index is as follows:

[0045] ;

[0046] In the formula, Represents the low-orbit satellite communication signal quality index, Indicates the influence factor of the low-orbit satellite communication signal quality index corresponding to the communication signal strength, Indicates the impact factor of the low-orbit satellite communication signal quality index corresponding to the signal frequency, Indicates the impact factor of the low-orbit satellite communication signal quality index corresponding to the phase offset, Indicates the communication signal strength. Indicates the critical communication signal strength, represents the signal frequency, represents the reference signal frequency, Indicates the allowable deviation signal frequency, represents the phase shift, Indicates the critical phase shift.

[0047] , and The influence factors of the low-orbit satellite communication signal quality index corresponding to the communication signal strength, signal frequency and phase offset preset in the climb control database respectively represent the numerical values ​​of the influence degree of the satellite communication signal strength, signal frequency and phase offset on the low-orbit satellite communication signal quality index, and can be directly obtained from the climb control database when used. The mapping relationship between the communication signal strength, signal frequency and phase offset and their corresponding low-orbit satellite communication signal quality index influence factors is organized into a "mapping set", that is, a lookup table or corresponding rules. When the value of the satellite communication signal data is actually monitored, this value can be searched according to the corresponding mapping set, and then the corresponding low-orbit satellite communication signal quality index influence factor can be obtained. This influence factor is a number between 0 and 1, which represents the evaluation result of the interference degree of the current satellite communication signal data on the low-orbit satellite communication signal quality index. For example, for communication signal strength, there is a mapping set of communication signal strength and the low-orbit satellite communication signal quality index influencing factor corresponding to the communication signal strength. By inputting the value of the communication signal strength, the low-orbit satellite communication signal quality index influencing factor corresponding to the communication signal strength can be obtained; for signal frequency, there is a mapping set of signal frequency and the low-orbit satellite communication signal quality index influencing factor corresponding to the signal frequency. By inputting the value of the signal frequency, the low-orbit satellite communication signal quality index influencing factor corresponding to the signal frequency can be obtained; for phase offset, there is a mapping set of phase offset and the low-orbit satellite communication signal quality index influencing factor corresponding to the phase offset. By inputting the value of the phase offset, the low-orbit satellite communication signal quality index influencing factor corresponding to the phase offset can be obtained. These mapping relationships can be many-to-one or one-to-one.

[0048] In this embodiment, the communication signal strength refers to the power of the communication signal received by the low-orbit satellite, and the signal frequency refers to the number of times the signal changes periodically within a unit time (for example, one minute). Both the communication signal strength and the signal frequency can be directly measured by a power meter; the phase offset refers to the absolute value of the difference between the phase of the received signal equipped by the low-orbit satellite and the phase of the transmitted signal of the ground control center. A standard signal with a known phase characteristic is used as a reference, and the output signal of the ground control center's transmission system and the standard signal are simultaneously input into the phase comparator for comparison, and the phase difference between the two is directly measured by the phase comparator. The three are interrelated. For example, in signal transmission, the higher the frequency, the faster the signal may attenuate, and a stronger signal strength is required to maintain stable communication quality; when the signal strength is weak, a large phase offset may occur due to multipath effects (such as signal reflection and refraction), thereby affecting the demodulation quality of the signal. The low-orbit satellite communication signal quality index obtained by comprehensive analysis is an indicator for comprehensively measuring the quality of the communication signal, which can reflect the quality of the current communication status. For example, if the low-orbit satellite communication signal quality index is greater than or equal to the low-orbit satellite communication signal quality index threshold preset in the climb control database, it means that the signal quality is good and the communication system can communicate at a lower bit error rate and a higher transmission rate; while if the low-orbit satellite communication signal quality index is less than the low-orbit satellite communication signal quality index threshold, it may mean that the signal is interfered with, severely attenuated, or there are transmission delays, and corresponding measures (such as adjusting the transmission power, changing the communication frequency band, improving the transmission environment, etc.) need to be taken to improve the communication quality.

[0049] The influence factor of the low-orbit satellite communication signal quality index corresponding to the communication signal strength is set to 0.6, the influence factor of the low-orbit satellite communication signal quality index corresponding to the signal frequency is set to 0.2, the influence factor of the low-orbit satellite communication signal quality index corresponding to the phase offset is set to 0.2, the communication signal strength is set to 1000dB, the critical communication signal strength is set to 800dB, the signal frequency is set to 10Hz, the reference signal frequency is set to 5Hz, the allowable deviation signal frequency is set to 2Hz, and the critical phase offset is set to 1rad. Under the condition of increasing phase offset, the low-orbit satellite communication signal quality index is calculated. As shown in Table 1, the low-orbit satellite communication signal quality index data table of the control system based on the low-orbit satellite climbing process.

[0050] Table 1 Data table of low-orbit satellite communication signal quality index based on the low-orbit satellite climbing process

[0051]

[0052] like Figure 2 As shown in Table 1 and Figure 2 It can be seen that the low-orbit satellite communication signal quality index influencing factor corresponding to the communication signal strength, the low-orbit satellite communication signal quality index influencing factor corresponding to the signal frequency, the low-orbit satellite communication signal quality index influencing factor corresponding to the phase offset, the communication signal strength, the critical communication signal strength, the signal frequency, the reference signal frequency, the allowable deviation signal frequency and the critical phase offset remain unchanged. When the phase offset continues to increase, the low-orbit satellite communication signal quality index continues to decrease.

[0053] Furthermore, the step of obtaining a low-orbit satellite climb state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference evaluation value includes: obtaining a critical low-orbit satellite communication signal quality index and a critical low-orbit satellite climb difference evaluation value from a climb control database; and obtaining a low-orbit satellite climb state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index, the low-orbit satellite climb difference evaluation value, the critical low-orbit satellite communication signal quality index and the critical low-orbit satellite climb difference evaluation value.

[0054] In this embodiment, the low-orbit satellite climb difference evaluation value reflects the deviation of the actual orbit of the satellite from the standard orbit during the climb process. When the low-orbit satellite climb difference evaluation value is greater than the low-orbit satellite climb difference evaluation threshold preset in the climb control database (possibly due to abnormal satellite climb speed or orbit inclination deviation), it will directly affect the satellite's communication antenna pointing and signal transmission path, and thus affect the communication signal quality index; if the communication signal quality suddenly drops, it may be due to the position change caused by the satellite climb, causing the communication link to be disturbed or the signal transmission distance to change. The low-orbit satellite climb state evaluation value obtained by comprehensive analysis can fully and accurately reflect the true state of the satellite during the climb process, not only taking into account the satellite's physical position and orbit changes, but also taking into account the normality of the communication function, providing a comprehensive measurement standard for judging whether the satellite is in a normal climb state.

[0055] Furthermore, the method for obtaining the low-orbit satellite climbing state evaluation value is as follows:

[0056] ;

[0057] In the formula, represents the low-orbit satellite climbing status assessment value, represents the climbing state assessment impact factor corresponding to the low-orbit satellite communication signal quality index, represents the climbing state assessment influencing factor corresponding to the low-orbit satellite climbing difference assessment value, Represents the low-orbit satellite communication signal quality index, represents the critical low-orbit satellite communication signal quality index, represents the low-orbit satellite climb difference assessment value, represents the critical low-orbit satellite climb difference assessment value, and e is a natural constant.

[0058] In this embodiment, and The low-orbit satellite climb state assessment impact factors corresponding to the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference assessment value preset in the climb control database respectively represent the numerical values ​​of the influence degree of the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference assessment value on the low-orbit satellite climb state assessment value, and can be directly obtained from the climb control database when used. The mapping relationship between the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference assessment value and their corresponding low-orbit satellite climb state assessment impact factors is organized into a "mapping set", that is, a lookup table or corresponding rules. When the value of the low-orbit satellite communication signal quality index or the low-orbit satellite climb difference assessment value is actually monitored, this value can be searched according to the corresponding mapping set, and then the corresponding low-orbit satellite climb state assessment impact factor is obtained. This impact factor is a number between 0 and 1, which represents the evaluation result of the interference degree of the current data on the orbit satellite climb state. For example, for the low-orbit satellite communication signal quality index, there is a low-orbit satellite communication signal quality index and a low-orbit satellite climb state assessment influence factor corresponding to the low-orbit satellite communication signal quality index as a mapping set, and by inputting the value of the low-orbit satellite communication signal quality index, the low-orbit satellite climb state assessment influence factor corresponding to the low-orbit satellite communication signal quality index can be obtained; for the low-orbit satellite climb difference assessment value, there is a low-orbit satellite climb difference assessment value and a low-orbit satellite climb state assessment influence factor corresponding to the low-orbit satellite climb difference assessment value as a mapping set, and by inputting the value of the low-orbit satellite climb difference assessment value, the low-orbit satellite climb state assessment influence factor corresponding to the low-orbit satellite climb difference assessment value can be obtained. These mapping relationships can be many-to-one or one-to-one.

[0059] Furthermore, the step of regulating and controlling the low-orbit satellite based on the satellite resource data and the satellite resource demand assessment value includes: obtaining a satellite resource assessment value based on a comprehensive analysis of the satellite resource data; comparing the satellite resource assessment value with the satellite resource demand assessment value, and if the satellite resource assessment value is less than the satellite resource demand assessment value, issuing an early warning for the low-orbit satellite; if the satellite resource assessment value is greater than or equal to the satellite resource demand assessment value, marking the difference between the satellite resource assessment value and the satellite resource demand assessment value as a remaining satellite resource assessment value, and performing regulation and control based on the remaining satellite resource assessment value.

[0060] In this embodiment, the satellite resource demand assessment value is obtained by matching the low-orbit satellite climb difference assessment value. The low-orbit satellite climb difference assessment value and the satellite resource demand assessment value corresponding to each low-orbit satellite climb difference assessment value preset in the climb control database form a mapping set. The low-orbit satellite climb difference assessment value is input into the mapping set to obtain the satellite resource demand assessment value corresponding to the low-orbit satellite climb difference assessment value. By comparing the satellite resource assessment value with the satellite resource demand assessment value, it is possible to accurately determine whether the resources are sufficient. When the satellite resource assessment value is less than the demand assessment value, it is necessary to immediately warn the low-orbit satellite to ensure the safety of the satellite and the smooth progress of subsequent tasks. When the low-orbit satellite is warned, the reserve energy can be used or the current position information of the low-orbit satellite can be used to accurately determine whether it is in an area where solar energy can be used for charging. If the satellite is located in an orbital position with sufficient solar radiation, the solar energy charging program can be started immediately. By adjusting the satellite attitude, the solar panel can receive sunlight to the maximum extent, and the solar energy is converted into electrical energy and stored in the satellite battery pack using the principle of photoelectric conversion. During this process, the ground control center will monitor the satellite's charging status in real time, including battery voltage, current, and charging power, to ensure the stability and efficiency of the charging process. At the same time, it will send instructions to the satellite to optimize its energy management system, prioritize the energy supply of key equipment, and reduce the energy consumption of non-essential equipment. If the satellite is in an emergency situation where it cannot effectively use solar energy for charging or cannot meet the current resource needs even if it is charged, it should immediately issue a stop climbing command. The system will do its best to maintain the satellite's stable attitude, ensure that the solar panels are always pointed in the direction of the sun to obtain as much solar energy as possible, and ensure that the communication antenna can maintain normal communication with the ground control center. In addition, during the early warning process, the ground control center will also send alarm information to relevant operators and departments in a variety of ways.

[0061] Furthermore, the step of obtaining a satellite resource assessment value based on a comprehensive analysis of satellite resource data includes: the satellite resource data includes propellant remainder, solar radiation intensity and battery power; obtaining a critical propellant remainder, a reference solar radiation intensity, an allowable deviation solar radiation intensity and a critical battery power from a climb control database; and obtaining a satellite resource assessment value through a comprehensive analysis.

[0062] The satellite resource evaluation value is obtained as follows:

[0063] ;

[0064] In the formula, represents the satellite resource assessment value, represents the satellite resource assessment impact factor corresponding to the propellant surplus, represents the satellite resource assessment impact factor corresponding to the solar radiation intensity, Indicates the satellite resource assessment impact factor corresponding to the battery power, Represents the propellant remainder, represents the critical propellant surplus, represents the intensity of solar radiation, represents the reference solar radiation intensity, Indicates the allowable deviation of solar radiation intensity, Indicates the battery level. Indicates critical battery level.

[0065] , and The satellite resource assessment impact factors corresponding to the propellant remainder, solar radiation intensity and battery power preset in the climb control database respectively represent the numerical values ​​of the degree of influence of the propellant remainder, solar radiation intensity and battery power on the satellite resource assessment value, and can be directly obtained from the climb control database when used. The mapping relationship between the propellant remainder, solar radiation intensity and battery power and their corresponding satellite resource assessment impact factors is organized into a "mapping set", that is, a lookup table or corresponding rules. When the value of the satellite resource data is actually monitored, this value can be searched according to the corresponding mapping set, and then the corresponding satellite resource assessment impact factor can be obtained. This impact factor is a number between 0 and 1, which represents the evaluation result of the interference degree of the current satellite resource data on the satellite resource assessment value. For example, for propellant surplus, there is a mapping set of propellant surplus and satellite resource assessment impact factor corresponding to propellant surplus. By inputting the value of propellant surplus, the satellite resource assessment impact factor corresponding to propellant surplus can be obtained; for solar radiation intensity, there is a mapping set of solar radiation intensity and satellite resource assessment impact factor corresponding to solar radiation intensity. By inputting the value of solar radiation intensity, the satellite resource assessment impact factor corresponding to solar radiation intensity can be obtained; for battery power, there is a mapping set of battery power and satellite resource assessment impact factor corresponding to battery power. By inputting the value of battery power, the satellite resource assessment impact factor corresponding to battery power can be obtained. These mapping relationships can be many-to-one or one-to-one.

[0066] In this embodiment, the propellant remainder refers to the amount of fuel remaining on the satellite for propulsion systems such as orbit adjustment and attitude control. For liquid propellant, the liquid level in the fuel tank can be measured, and for solid propellant, the propellant weight can be measured; solar radiation intensity refers to the power density of solar radiation received by the satellite, which can be directly measured using the solar radiation sensor equipped on the satellite. When the solar radiation intensity does not reach the reference solar radiation intensity, as the solar radiation intensity increases, more solar radiation can be used for charging, so the satellite resource assessment value also increases. When the solar radiation intensity is higher than the reference solar radiation intensity, as the solar radiation intensity increases, the interference caused by solar radiation to the low-orbit satellite becomes greater, so the satellite resource assessment value decreases; battery power refers to the power stored in the battery on the satellite, which can be directly viewed in the satellite operating console. The three are interrelated. For example, when the intensity of solar radiation is high, the satellite's solar panels can generate more electricity, the charging efficiency is improved, and the battery power can be accumulated quickly. When the radiation intensity is low, the battery charging speed slows down, and the accumulation of battery power will be affected. In an environment with strong solar radiation, the satellite can obtain more electricity, but if the propellant is insufficient, the satellite may not be able to complete the orbit correction mission, resulting in the inability to fully utilize solar energy. The satellite resource assessment value obtained through comprehensive analysis represents the comprehensive resource capacity of the satellite in its current state, which can reflect the satellite's energy reserve status, the use status of the propellant, and the types of missions it can perform. Through accurate assessment of satellite resources, the successful implementation of satellite missions can be ensured, the service life of the satellite can be maximized, and operational risks can be reduced.

[0067] Furthermore, the step of performing adjustment and control according to the remaining satellite resource evaluation values ​​includes: matching the remaining satellite resource evaluation values ​​with the satellite climb control levels corresponding to the remaining satellite resource evaluation values ​​preset in the climb control database to obtain the satellite climb control level, and performing adjustment and control on the low-orbit satellite according to the satellite climb control level.

[0068] In this embodiment, the satellite climb control level includes the first level climb control level, the second level climb control level and the third level climb control level. The first level climb control level has more remaining resources, and can finely optimize the satellite climb path. A more optimal climb trajectory can be calculated by using a high-precision orbital mechanics model, combined with the earth's gravitational field model and the atmospheric density model. For example, the earth's flattening and other high-order gravitational perturbation factors are considered to adjust the satellite's orbital inclination and the right ascension of the ascending node, so that the satellite can better use the earth's gravity to assist in the climb process, reduce the consumption of propellant, and shorten the climb distance. In order to further ensure the safety and accuracy of the climb process, some redundant designs can be added. For example, in terms of attitude control, backup attitude sensors and actuators can be enabled, and regular cross-checks can be performed to ensure that the solar panels are facing the sun. The Yanghe communication antenna points to the target area on the ground to ensure normal energy supply and communication, providing more stable protection for the climbing process; according to the remaining resources, the thrust of the propulsion system is appropriately increased to speed up the satellite's climbing speed. The thrust of the propulsion system can be increased by adjusting the injection amount and injection frequency of the propellant, or by increasing the power of the electric propulsion system. This will help the satellite reach the target orbit faster and be put into operation earlier, thereby improving the satellite's utilization efficiency; use the remaining resources to enhance the satellite's communication and data transmission capabilities during the climb, such as increasing the bandwidth of the communication frequency band, or adopting more efficient data encoding and transmission protocols, so that the satellite can transmit its own status information to the ground control center more timely and accurately. The remaining resources of the second-level climb control level are moderate, and it is necessary to balance resource utilization and climb efficiency. Under the premise of ensuring that the satellite can successfully complete the climb mission, the climb path is moderately optimized. For example, when adjusting the orbital inclination, a smaller adjustment is adopted to avoid excessive consumption of resources, while minimizing the extra distance and resource waste caused by inaccurate orbit adjustment. In terms of energy, more attention is paid to the reasonable allocation and utilization efficiency of energy. For example, when the satellite is in a sunny area, the charging power of the battery is appropriately increased, and the power consumption of the propulsion system and other equipment is reasonably controlled to ensure the reserve and reasonable use of energy. Resources are mainly allocated to key equipment. For example, the monitoring frequency of temperature, pressure and other parameters of the propulsion system is increased to promptly detect and deal with potential fault hazards. At the same time, a more conservative control strategy is adopted for the attitude control system to avoid waste of resources and climb failure due to attitude loss of control. For possible medium-risk situations (such as slight risk of space debris collision, local atmospheric density anomalies, etc.), certain resources are reserved for emergency handling, such as planning alternative orbit correction strategies. When possible risks are monitored, the remaining resources can be used in time to make appropriate orbit adjustments to ensure the safety of the satellite and the continuation of the climb mission.The remaining resources of the third-level climb control level are limited, and strict resource allocation and basic function guarantee are required. The most basic climb path should be selected to minimize the number and amplitude of orbit adjustments and avoid unnecessary resource consumption. For example, on the premise of meeting the target orbit requirements, priority should be given to orbit inclination and speed adjustment schemes with the least propellant consumption, and the amount of propellant used should be strictly controlled. In terms of energy management, only the energy supply for the basic functions of the satellite should be guaranteed, non-critical equipment should be shut down or its power consumption should be reduced, and limited energy should be concentrated on the propulsion system, necessary attitude control and basic communication functions. Resources should be mainly used to deal with high-risk situations, such as serious space debris collision risks or failures of key equipment. In the event of equipment failure during the climb, priority should be given to switching the satellite to safe mode to ensure the safety of key equipment and the maintenance of basic functions. For example, the current remaining satellite resource assessment value is 0.6, the remaining satellite resource assessment value range corresponding to the first-level climb control level preset in the climb control database is greater than 1, the remaining satellite resource assessment value range corresponding to the second-level climb control level is [0.5, 1], and the remaining satellite resource assessment value range corresponding to the third-level climb control level is (0, 0.5), so the current satellite climb control level is level two.

[0069] Furthermore, the satellite climb orbit altitude is monitored in real time, and the standard satellite climb data of each time monitoring point is obtained according to the satellite climb orbit altitude, the actual satellite climb data of each time monitoring point is obtained, and the low-orbit satellite climb difference evaluation value is obtained by comprehensive analysis based on the standard satellite climb data of each time monitoring point and the actual satellite climb data of each time monitoring point; satellite communication signal data is obtained, and the low-orbit satellite communication signal quality index is obtained according to the comprehensive analysis of the satellite communication signal data, and the low-orbit satellite climb state evaluation value is obtained according to the comprehensive analysis of the low-orbit satellite communication signal quality index and the low-orbit satellite climb difference evaluation value; it is determined whether to perform a climb orbit correction according to the low-orbit satellite climb state evaluation value, satellite resource data is obtained, and the satellite resource demand evaluation value is obtained according to the matching of the low-orbit satellite climb difference evaluation value, and the low-orbit satellite is adjusted and controlled according to the satellite resource data and the satellite resource demand evaluation value.

[0070] In summary, this embodiment monitors the satellite climbing orbit height in real time, and uses it as a basis to obtain the standard satellite climbing data at each time monitoring point, and collects the corresponding actual satellite climbing data at the same time; comprehensively compares the standard and actual satellite climbing data at each time monitoring point, and obtains the low-orbit satellite climbing difference evaluation value to measure the deviation between the actual satellite climbing and the expected. In addition, the satellite communication signal data is obtained, and the low-orbit satellite communication signal quality index is obtained by analysis to characterize the quality of the communication signal. The two evaluation values ​​are comprehensively analyzed to obtain the low-orbit satellite climbing state evaluation value, and the satellite climbing state is comprehensively evaluated from the two aspects of orbit climbing and communication signal; evaluation feedback is performed based on the low-orbit satellite climbing state evaluation value to determine whether it is necessary to correct the climbing orbit. If the evaluation result shows that there is a deviation in the orbit, corrective measures are taken in time to ensure that the satellite climbs along the correct orbit; satellite resource data is obtained, and the satellite resource demand evaluation value is matched based on the low-orbit satellite climbing difference evaluation value. Finally, the low-orbit satellite is adjusted and controlled according to the satellite resource data and the demand evaluation value, and satellite resources are reasonably allocated to ensure the stable operation of the satellite during the climbing process and the normal realization of various functions.

[0071] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems and methods, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0072] The present invention is described with reference to the flowcharts and / or block diagrams of the systems and methods, devices (systems and methods), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0073] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0074] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0075] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0076] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A control system based on the climbing process of a low-orbit satellite, characterized in that: include: A climbing state assessment module, a communication state assessment module, a climbing control module and a climbing control database; The climbing state evaluation module is used to monitor the satellite climbing orbit height in real time, and obtain the standard satellite climbing data of each time monitoring point according to the satellite climbing orbit height, obtain the actual satellite climbing data of each time monitoring point, and obtain the low-orbit satellite climbing difference evaluation value according to the comprehensive analysis of the standard satellite climbing data of each time monitoring point and the actual satellite climbing data of each time monitoring point; The communication status evaluation module is used to obtain satellite communication signal data, obtain a low-orbit satellite communication signal quality index based on a comprehensive analysis of the satellite communication signal data, and obtain a low-orbit satellite climb status evaluation value based on a comprehensive analysis of the low-orbit satellite communication signal quality index and a low-orbit satellite climb difference evaluation value; The climb control module is used to determine whether to perform climb orbit correction according to the low-orbit satellite climb state evaluation value, obtain satellite resource data, match the low-orbit satellite climb difference evaluation value to obtain the satellite resource demand evaluation value, and adjust and control the low-orbit satellite according to the satellite resource data and the satellite resource demand evaluation value; The step of obtaining the low-orbit satellite climbing state evaluation value by comprehensive analysis based on the low-orbit satellite communication signal quality index and the low-orbit satellite climbing difference evaluation value comprises: Obtaining a critical low-orbit satellite communication signal quality index and a critical low-orbit satellite climb difference evaluation value from a climb control database; The low-orbit satellite climb status assessment value is obtained by comprehensive analysis of the low-orbit satellite communication signal quality index, the low-orbit satellite climb difference assessment value, the critical low-orbit satellite communication signal quality index and the critical low-orbit satellite climb difference assessment value.

2. The control system based on the low-orbit satellite climbing process as claimed in claim 1, characterized in that: The step of obtaining standard satellite climb data at each time monitoring point according to the satellite climb orbit height comprises: The standard satellite climb data includes a reference satellite inclination, a reference satellite speed and a reference satellite position; The satellite climbing orbit height is matched with the standard satellite climbing data corresponding to each satellite climbing orbit height preset in the climbing control database to obtain the standard satellite climbing data at each time monitoring point.

3. The control system based on the low-orbit satellite climbing process as claimed in claim 1, characterized in that: The step of obtaining the low-orbit satellite climb difference evaluation value by comprehensive analysis of the standard satellite climb data at each time monitoring point and the actual satellite climb data at each time monitoring point comprises: Obtain the allowable deviation satellite inclination angle, the allowable deviation satellite speed and the allowable deviation straight-line position distance from the climb control database; The actual satellite climb data includes actual satellite inclination, actual satellite speed and actual satellite position; The low-orbit satellite climb difference assessment value is obtained by comprehensive analysis of the standard satellite climb data and the actual satellite climb data at each time monitoring point.

4. The control system based on the low-orbit satellite climbing process as claimed in claim 1, characterized in that: The step of obtaining the low-orbit satellite communication signal quality index based on comprehensive analysis of satellite communication signal data comprises: The satellite communication signal data includes communication signal strength, signal frequency and phase offset; Obtaining critical communication signal strength, reference signal frequency, allowable deviation signal frequency and critical phase offset from a climb control database; The low-orbit satellite communication signal quality index is obtained through comprehensive analysis.

5. The control system based on the low-orbit satellite climbing process as claimed in claim 1, characterized in that: The method for obtaining the low-orbit satellite climbing state evaluation value is as follows: ； In the formula, represents the low-orbit satellite climbing status assessment value, represents the climbing state assessment impact factor corresponding to the low-orbit satellite communication signal quality index, represents the climbing state assessment influencing factor corresponding to the low-orbit satellite climbing difference assessment value, Represents the low-orbit satellite communication signal quality index, represents the critical low-orbit satellite communication signal quality index, represents the low-orbit satellite climb difference assessment value, represents the critical low-orbit satellite climb difference assessment value, and e is a natural constant.

6. The control system based on the low-orbit satellite climbing process as claimed in claim 1, characterized in that: The step of regulating and controlling the low-orbit satellite according to the satellite resource data and the satellite resource demand assessment value comprises: The satellite resource assessment value is obtained based on comprehensive analysis of satellite resource data; The satellite resource assessment value is compared with the satellite resource demand assessment value. If the satellite resource assessment value is less than the satellite resource demand assessment value, an early warning is issued for the low-orbit satellite. If the satellite resource assessment value is greater than or equal to the satellite resource demand assessment value, the difference between the satellite resource assessment value and the satellite resource demand assessment value is marked as the remaining satellite resource assessment value, and adjustment and control are performed according to the remaining satellite resource assessment value.

7. The control system based on the low-orbit satellite climbing process as claimed in claim 6, characterized in that: The step of obtaining the satellite resource evaluation value based on the comprehensive analysis of satellite resource data comprises: The satellite resource data includes remaining propellant, solar radiation intensity and battery power; Obtain critical propellant remainder, reference solar radiation intensity, allowable deviation solar radiation intensity and critical battery power from the climb control database; The satellite resource assessment value is obtained through comprehensive analysis.

8. The control system based on the low-orbit satellite climbing process as claimed in claim 6, characterized in that: The step of adjusting and controlling according to the remaining satellite resource evaluation value comprises: The remaining satellite resource assessment value is matched with the satellite climb control level corresponding to each remaining satellite resource assessment value preset in the climb control database to obtain the satellite climb control level, and the low-orbit satellite is adjusted and controlled according to the satellite climb control level.

9. A control method based on a low-orbit satellite climbing process, applied to a control system based on a low-orbit satellite climbing process as described in any one of claims 1 to 8, characterized in that: The following steps are involved: Monitor the satellite's orbital altitude in real time, and obtain standard satellite climb data at each time monitoring point based on the satellite's orbital altitude, obtain actual satellite climb data at each time monitoring point, and obtain a low-orbit satellite climb difference assessment value based on a comprehensive analysis of the standard satellite climb data at each time monitoring point and the actual satellite climb data at each time monitoring point; Acquire satellite communication signal data, obtain a low-orbit satellite communication signal quality index based on a comprehensive analysis of the satellite communication signal data, and obtain a low-orbit satellite climb state assessment value based on a comprehensive analysis of the low-orbit satellite communication signal quality index and a low-orbit satellite climb difference assessment value; Determine whether to perform climb orbit correction based on the low-orbit satellite climb status assessment value, obtain satellite resource data, match the low-orbit satellite climb difference assessment value to obtain the satellite resource demand assessment value, and adjust and control the low-orbit satellite based on the satellite resource data and the satellite resource demand assessment value.

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