Earth-moon communication method and system based on moon constellation

Abstract

The invention belongs to the technical field of spaceflight exploration, and particularly relates to an earth-moon communication method and system based on a moon constellation. The method comprises the following steps of: distributing a plurality of satellites on a low lunar orbit and a middle lunar orbit to form a lunar constellation which uniformly covers south and north poles and an equator region; acquiring position coordinate information of each satellite, establishing an adjacency relation in a constellation, and allocating adjacent satellites to each satellite; a multi-hop data relay link is constructed between the satellites, and link redundancy design is carried out, so that the satellites of the lunar constellation are interconnected with adjacent satellites; data transmission between the starting satellite and the target satellite is realized through multi-hop data relay transmission; the target satellite transmits data to the earth through earth-moon communication; and each satellite monitors the own state in real time and diagnoses the state, if a fault occurs, the satellite is repaired, and if the repair fails, the satellite is switched to the standby device. The system is strong in coverage range, can realize full-area coverage, and is high in communication reliability.

Description

Technical Field

[0001] The present invention belongs to the field of aerospace exploration technology, and in particular relates to an earth-moon communication method and system based on a lunar constellation. Background Art

[0002] With the increase in lunar exploration missions, the demand for a stable and continuous Earth-Moon communication network continues to increase. The technical deficiencies of Earth-Moon communication in existing technologies are mainly reflected in the long-distance signal attenuation between the Earth and the Moon, the communication blind spot on the back of the Moon, the delay of Earth-Moon communication, and the high radiation and high temperature difference in the space environment. How to break through these limitations and achieve high-quality Earth-Moon communication is a problem that needs to be solved.

[0003] Specifically, the existing technology of earth-moon communication has the following problems: 1. Limited coverage: Existing deep space communication solutions usually rely on deep space networks and single relay satellites on the earth to establish communication links between the earth and the moon. However, due to the obstruction of the moon itself, it is difficult to stably cover the communication signals in the back of the moon and the polar regions. This coverage blind spot may lead to the risk of information disconnection during mission execution, and is not suitable for lunar exploration or lunar base construction that requires full coverage. 2. Signal delay and limited data transmission: The 2.5-second delay caused by the distance between the earth and the moon makes the feedback speed in the communication process slow, and real-time control becomes difficult. Especially when the exploration mission requires real-time remote control, the delay will cause control lag. In addition, the bandwidth of traditional radio communication technology is limited, and it is difficult to support the efficient transmission of large-scale data. This is an obvious bottleneck for tasks that require frequent transmission of high-definition images, videos or complex terrain data. 3. Poor anti-interference: The earth-moon communication link is often affected by space environments such as solar activity and cosmic rays, resulting in problems such as signal attenuation and high bit error rate. Existing technologies are difficult to cope with these effects, and require higher anti-interference design and redundancy measures to ensure data integrity, but this also increases the complexity and power consumption of communication equipment. 4. High cost and difficult to maintain: The current Earth-Moon communication system relies on large-scale ground-based deep space networks and dedicated relay satellites, and the system construction and maintenance costs are high. In addition, since lunar exploration missions usually face severe resource constraints, the cost and maintenance difficulty of establishing multiple Earth-Moon relay satellites are also very high, making it difficult to achieve long-term and stable communication needs. 5. Poor scalability: Existing technologies lack flexibility when adding new equipment or nodes. For example, when adding new lunar probes or establishing multiple lunar bases, it is necessary to adjust the communication network configuration or add relay facilities, and the system has poor scalability. The diversification of future lunar exploration missions and base requirements makes the expansion of communication networks an inevitable trend, and existing solutions are difficult to adapt.

[0004] In summary, the existing technologies for Earth-Moon communications have obvious deficiencies in coverage, latency, anti-interference, cost, and scalability, which limit the flexibility and reliability of deep space exploration missions. Summary of the invention

[0005] In order to solve at least one of the above-mentioned technical problems in the existing Earth-Moon communications, the present invention proposes an Earth-Moon communication method and system based on a lunar constellation, which aims to achieve collaborative work of multiple satellites and form a multi-hop path through relay transmission between satellites in the constellation, thereby bypassing the lunar obstruction, so that the back of the moon can also maintain a communication connection with the earth, establish stable coverage and efficient communication links, and better support lunar exploration and the establishment of future lunar bases.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for earth-moon communication based on a lunar constellation, comprising the following steps:

[0007] Step 1: Distribute multiple satellites in low and mid lunar orbits to form a lunar constellation that evenly covers the north and south poles and the equator.

[0008] Step 2: Obtain the position coordinate information of each satellite, establish the adjacency relationship within the constellation, and assign adjacent satellites to each satellite;

[0009] Step 3: Build multi-hop data relay links between satellites and perform link redundancy design so that each satellite in the lunar constellation is interconnected with adjacent satellites;

[0010] Step 4: Data transmission between the starting satellite and the target satellite is realized through multi-hop data relay transmission; the target satellite transmits the data to the earth through earth-moon communication;

[0011] Step 5: Each satellite monitors its own status in real time and performs status diagnosis. If a fault occurs, it is repaired. If the repair fails, it switches to the backup device.

[0012] The method for Earth-Moon communication based on a lunar constellation also includes the following steps: each satellite automatically adjusts its orbit and attitude according to the gravity of the moon to always maintain the best Earth-Moon communication angle.

[0013] The step 4 also includes the following steps: finding the shortest path for multi-hop data relay transmission by using a breadth-first search algorithm, so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

[0014] The step 4 also includes the following steps: if there is a faulty satellite in the current shortest path, the faulty satellite is isolated, and the shortest path for multi-hop data relay transmission is found again through a breadth-first search algorithm, so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

[0015] In step 1, the formed lunar constellation includes eight satellites; the starting satellite is a satellite on the back side of the moon, and the target satellite is a satellite on the front side of the moon.

[0016] In step 4, data transmission between satellites of the lunar constellation adopts distributed data transmission and is backed up by multi-satellite redundancy.

[0017] In addition, the present invention also provides an Earth-Moon communication system based on a lunar constellation, comprising: a plurality of satellites: the plurality of satellites are distributed on a low lunar orbit and a mid lunar orbit, forming a lunar constellation that evenly covers the North Pole and South Pole and the equatorial region, for executing the Earth-Moon communication method.

[0018] The satellite is provided with:

[0019] Communication module: used to form a multi-hop data relay link with an adjacent satellite, to receive data from an adjacent satellite and send it to the next satellite in the multi-hop data relay link, and to send the received data to a storage unit;

[0020] Path optimization module: used to find the shortest path for multi-hop data relay transmission through a breadth-first search algorithm;

[0021] Storage module: used for redundant storage of received data and realization of multi-satellite redundant backup of communication data;

[0022] The satellite is also provided with:

[0023] Adaptive orbit control and attitude adjustment module: used to automatically adjust the satellite orbit and attitude according to the influence of the moon's gravity, always maintaining the best earth-moon communication angle;

[0024] Automatic diagnosis and maintenance module: used to monitor the satellite's own status in real time and perform status diagnosis. If a fault occurs, it will be repaired. If the repair fails, it will switch to the backup equipment.

[0025] The communication module communicates with adjacent satellites through an anti-interference protocol, and the anti-interference protocol reduces the bit error rate through an adaptive data transmission strategy to improve the reliability of the signal under the influence of space radiation; the adaptive data transmission strategy includes automatic retransmission and error correction to ensure the integrity and stable transmission of data in an interference environment.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. Enhanced coverage: The present invention arranges satellites in low and mid lunar orbits to form uniform circumlunar coverage. This layout optimizes communication coverage in the north and south poles and the lunar equator, especially solving the problem of communication blind spots on the far side of the moon.

[0028] 2. Flexible multi-hop data transmission: The present invention uses multi-hop data relay between multiple satellites, so that even if a satellite fails or loses connection, data can still be forwarded through other satellites. This redundant design improves the reliability of the system, while the existing technology usually relies on direct communication links and is easily affected by single point failures.

[0029] 3. Adaptive orbit and attitude adjustment: Each satellite in the present invention is equipped with an adaptive orbit and attitude control module, which can respond to the changes in the lunar gravity in real time and maintain the best communication angle. This dynamic adjustment capability ensures the stable operation of the system in orbit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic flow chart of an Earth-Moon communication method based on a lunar constellation provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1 As shown, Embodiment 1 of the present invention provides a method for earth-moon communication based on a lunar constellation, comprising the following steps:

[0034] Step 1: By distributing multiple satellites in low and mid lunar orbits, a circumlunar constellation is formed that evenly covers the North Pole, South Pole and equatorial regions.

[0035] In step 1, the formed lunar constellation includes eight satellites; the starting satellite is a satellite on the back side of the moon, and the target satellite is a satellite on the front side of the moon.

[0036] In this embodiment, eight satellites are distributed in low and mid lunar orbits to form a lunar constellation that evenly covers the north and south poles and the equatorial region. Satellites with different orbital periods are distributed to enhance the continuity and stability of coverage and meet the communication needs of multiple regions.

[0037] Step 2: Obtain the position coordinate information of each satellite, establish the adjacency relationship within the constellation, and assign adjacent satellites to each satellite.

[0038] Step 3: Build multi-hop data relay links between satellites and perform link redundancy design so that each satellite in the lunar constellation is interconnected with adjacent satellites.

[0039] Step 4: Data transmission between the starting satellite and the target satellite is realized through multi-hop data relay transmission; the target satellite transmits the data to the Earth through Earth-Moon communication.

[0040] In this embodiment, a multi-hop data relay link is constructed between satellites, so that data from the back of the moon is transmitted back to the earth through other satellites, eliminating signal blind spots. The link redundancy design allows each satellite to be interconnected with adjacent satellites. Even if a failure or interruption occurs, data can still be transmitted through alternative paths, improving the fault tolerance and stability of the system.

[0041] In this embodiment, an anti-interference protocol adapted to Earth-Moon communication is formulated in the communication module of each satellite, combined with an adaptive data transmission strategy to reduce the bit error rate and improve the reliability of the signal under the influence of space radiation. The automatic retransmission and error correction functions ensure that the data is intact and transmitted stably in an interference environment.

[0042] Specifically, the step 4 also includes the following steps: finding the shortest path for multi-hop data relay transmission through a breadth-first search algorithm (BFS), so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

[0043] The step 4 also includes the following steps: if there is a faulty satellite in the current shortest path, the faulty satellite is isolated, and the shortest path for multi-hop data relay transmission is found again through a breadth-first search algorithm, so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

[0044] In step 4, data transmission between satellites of the lunar constellation adopts distributed data transmission and is backed up by multi-satellite redundancy.

[0045] Step 5: Each satellite monitors its own status in real time and performs status diagnosis. If a fault occurs, it is repaired. If the repair fails, it switches to the backup device. In addition, if the satellite fault cannot be repaired, it returns to step 3 and rebuilds the multi-hop data relay link.

[0046] In this embodiment, the satellite is equipped with an automatic diagnosis and maintenance module to monitor and troubleshoot in real time and switch to backup equipment when necessary. It supports remote software updates, including communication protocol and anti-interference algorithm optimization, to ensure continuous system upgrades. The ground control center is equipped with a constellation maintenance interface, allowing the operation and maintenance team to adjust orbits and mission priorities to achieve dynamic management and maintenance.

[0047] Furthermore, the Earth-Moon communication method based on a lunar constellation also includes the following steps: each satellite automatically adjusts its orbit and attitude according to the gravity of the moon to always maintain the best Earth-Moon communication angle.

[0048] In this embodiment, an adaptive orbit control system is set up in the satellite, and the satellite can automatically adjust its orbit and attitude according to the influence of the moon's gravity, always maintaining the best earth-moon communication angle. Regular orbit adjustment can avoid collisions, optimize the transmission efficiency of the communication link, and ensure long-term stable operation.

[0049] This embodiment can solve the problem of full coverage communication on the lunar surface. Existing Earth-Moon communications are difficult to cover the back of the moon and the polar regions. The communication method of this embodiment designs a lunar constellation, deploys multiple satellites in different orbits, and reasonably distributes satellites based on the lunar constellation layout of low lunar orbit and mid-lunar orbit to achieve full coverage of the entire lunar surface. It can effectively eliminate the blind spots caused by lunar obstruction, especially on the back of the moon and the polar regions, meet the communication needs of different regions, and enable detection equipment at any location on the moon to maintain communication with the earth.

[0050] Furthermore, this embodiment can also achieve a balance between high latency and high bandwidth requirements. The delay in Earth-Moon communication will have an adverse impact on real-time tasks. The present invention realizes multi-hop transmission of data through a constellation network composed of multiple satellites, reducing the communication pressure of a single link. At the same time, the communication protocol is optimized to adapt to high latency conditions, thereby effectively improving the data transmission rate and response time, and meeting the high bandwidth and high real-time requirements of the lunar exploration mission.

[0051] Furthermore, the present invention also has enhanced anti-interference capability. Space radiation, solar wind and other factors make the Earth-Moon communication link susceptible to interference. The present invention adopts anti-interference coding technology in satellite design, and improves the anti-interference capability and data integrity of the constellation system through multi-satellite redundant backup and distributed data transmission, thereby ensuring stable transmission in complex environments.

[0052] Furthermore, the present invention has the advantages of low cost and easy maintenance. The existing Earth-Moon relay scheme is costly and difficult to maintain. The present invention reduces the resource requirements of a single satellite by rationally arranging and optimizing the number of satellites, thereby achieving modularization and easy maintainability of the constellation. At the same time, the redundant backup design of multiple satellites improves the fault tolerance capability. Even if some satellites fail, the overall communication network can still maintain stable operation.

[0053] Furthermore, the present invention is highly scalable and can adapt to future mission requirements. With the increase in lunar exploration missions and the establishment of lunar bases, communication requirements will continue to grow. The lunar constellation designed by the present invention has strong scalability and can flexibly add new nodes to support the access of more devices. New satellites can seamlessly access the system without affecting existing communications, which is convenient for future expansion and adapts to the diverse needs of missions.

[0054] The feasibility of the present invention has been demonstrated through a series of simulations.

[0055] The following is part of the implementation source code:

[0056] import random

[0057] class Satellite:

[0058] def__init__(self,satellite_id,position,status="active"):

[0059] self.id = satellite_id

[0060] self.position = position # lunar orbit position coordinates

[0061] self.status=status#active or faulty

[0062] self.neighbors = [] # List of neighboring satellites

[0063] self.data=None#stored data

[0064] def transmit_data(self,target):

[0065] """Simulate data transmission. If the target satellite is active, the transmission is successful."""

[0066] if self.status=="active"and target.status=="active":

[0067] target.data = self.data

[0068] print(f"Data transmitted from Satellite{self.id}to Satellite{target.id}")

[0069] return True

[0070] else:

[0071] print(f"Transmission failed from Satellite{self.id}to Satellite{target.id}")

[0072] return False

[0073] def check_status(self):

[0074] """Self-diagnosis, randomly set the state to active or faulty"""

[0075] if random.random()<0.1: # 10% chance of failure

[0076] self.status = "faulty"

[0077] else:

[0078] self.status = "active"

[0079] return self.status

[0080] class LunarConstellation:

[0081] def__init__(self,num_satellites):

[0082] self.satellites=[Satellite(i,position=(i*10,i*5))for iin range(num_satellites)]

[0083] self.link_neighbors()#Establish neighbor relationships within the constellation

[0084] def link_neighbors(self):

[0085] """Assign adjacent satellites to each satellite"""

[0086] num = len(self.satellites)

[0087] for i in range(num):

[0088] self.satellites[i].neighbors=[self.satellites[(i-1)%num], self.satellites[(i+1)%num]]

[0089] def relay_data(self,start_id,end_id):

[0090] """Multi-hop data relay transmission, from the starting satellite to the target satellite"""

[0091] path=self.find_path(start_id,end_id)

[0092] if not path:

[0093] print("No available path found.")

[0094] return

[0095] for i in range(len(path)-1):

[0096] source = path[i]

[0097] target = path[i+1]

[0098] if not source.transmit_data(target):

[0099] print("Data relay failed.")

[0100] return

[0101] print(f"Data successfully relayed from Satellite{start_id}toSatellite{end_id}")

[0102] def find_path(self,start_id,end_id):

[0103] """Use breadth-first search (BFS) to find the shortest path"""

[0104] queue=[[self.satellites[start_id]]]

[0105] visited={start_id}

[0106] while queue:

[0107] path = queue.pop(0)

[0108]

[0109] Among them, Satellite class: Each satellite object has basic attributes such as id, position and status. The transmit_data method is used to simulate data transmission between satellites, and the check_status method implements satellite self-diagnosis.

[0110] Constellation management class (LunarConstellation): Build a satellite constellation system and define the links between adjacent satellites. The relay_data method realizes the transmission of data from the starting satellite to the target satellite through multi-hop. The find_path method uses the breadth-first search (BFS) algorithm to find the shortest path from the starting satellite to the target satellite.

[0111] Automatic maintenance: Through the auto_maintenance method, the satellite status is automatically detected and the faulty satellite is attempted to be repaired.

[0112] Embodiment 2

[0113] Embodiment 2 of the present invention provides an Earth-Moon communication system based on a lunar constellation, comprising: a plurality of satellites: the plurality of satellites are distributed on a low lunar orbit and a mid lunar orbit, forming a lunar constellation that uniformly covers the North Pole and the South Pole and the equatorial region, and is used to execute the Earth-Moon communication method described in embodiment 1 of the claim.

[0114] Specifically, in this embodiment, the satellite is provided with:

[0115] Communication module: used to form a multi-hop data relay link with an adjacent satellite, to receive data from an adjacent satellite and send it to the next satellite in the multi-hop data relay link, and to send the received data to a storage unit;

[0116] Path optimization module: used to find the shortest path for multi-hop data relay transmission through a breadth-first search algorithm;

[0117] Storage module: used for redundant storage of received data and realization of multi-satellite redundant backup of communication data;

[0118] Furthermore, in this embodiment, the satellite is also provided with:

[0119] Adaptive orbit control and attitude adjustment module: used to automatically adjust the satellite orbit and attitude according to the influence of the moon's gravity, always maintaining the best earth-moon communication angle;

[0120] Automatic diagnosis and maintenance module: used to monitor the satellite's own status in real time and perform status diagnosis. If a fault occurs, it will be repaired. If the repair fails, it will switch to the backup equipment.

[0121] Furthermore, in this embodiment, the communication module communicates with adjacent satellites through an anti-interference protocol, and the anti-interference protocol reduces the bit error rate through an adaptive data transmission strategy to improve the reliability of the signal under the influence of space radiation; the adaptive data transmission strategy includes automatic retransmission and error correction to ensure the integrity and stable transmission of data in an interference environment.

[0122] In summary, the present invention provides a method and system for Earth-Moon communication based on a lunar constellation, including the following key technical improvements:

[0123] 1. Constellation layout and orbit optimization: Based on the lunar constellation layout of low lunar orbit and medium lunar orbit, satellites are reasonably distributed to achieve full coverage of the lunar surface, especially on the far side of the moon and the polar regions, to meet the communication needs of different regions.

[0124] 2. Multi-hop data relay and link redundancy: Multi-hop data relay technology is used to establish a robust communication link between satellites, so that data can be effectively transmitted from the back of the moon to the earth. At the same time, link redundancy is designed to enhance the fault tolerance of the system, ensuring that when any satellite fails, data can still be transmitted through other satellites.

[0125] 3. Anti-interference communication protocol and efficient coding design: Anti-interference communication protocol adapted to the lunar and cis-lunar space environment, combined with adaptive data transmission strategy and efficient coding mechanism, ensures the reliability and accuracy of data transmission under the interference of solar radiation and cosmic rays.

[0126] 4. Adaptive orbit control and attitude adjustment: Each satellite is equipped with an adaptive orbit control and attitude adjustment system to adapt to the lunar gravity and environmental changes, maintain the best communication angle and orbit stability, and avoid potential collision risks between satellites.

[0127] 5. Automated maintenance and remote management: Each satellite is equipped with an automatic diagnosis and maintenance module to monitor the communication link and hardware status in real time, and realize automatic fault detection and repair. In conjunction with the ground control center, the operation and maintenance team can remotely adjust the satellite orbit and update the software to ensure the stable and efficient operation of the constellation system throughout its life cycle.

[0128] 6. Strong dynamic adaptability: The constellation system can dynamically adjust coverage, communication capabilities and resource allocation according to different mission requirements and environmental changes, improving the flexibility and adaptability of the overall system.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for earth-moon communication based on a lunar constellation, characterized in that: The following steps are involved: Step 1: Distribute multiple satellites in low and mid lunar orbits to form a lunar constellation that evenly covers the north and south poles and the equator. Step 2: Obtain the position coordinate information of each satellite, establish the adjacency relationship within the constellation, and assign adjacent satellites to each satellite; Step 3: Build multi-hop data relay links between satellites and perform link redundancy design so that each satellite in the lunar constellation is interconnected with adjacent satellites; Step 4: Data transmission between the starting satellite and the target satellite is realized through multi-hop data relay transmission; the target satellite transmits the data to the earth through earth-moon communication; Step 5: Each satellite monitors its own status in real time and performs status diagnosis. If a fault occurs, it is repaired. If the repair fails, it switches to the backup device.

2. The method for earth-moon communication based on a lunar constellation according to claim 1, characterized in that: The following steps are also included: Each satellite automatically adjusts its orbit and attitude according to the moon's gravity to always maintain the optimal angle for Earth-Moon communication.

3. The Earth-Moon communication method based on the lunar constellation according to claim 1, characterized in that: The step 4 also includes the following steps: finding the shortest path for multi-hop data relay transmission by using a breadth-first search algorithm, so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

4. The method for earth-moon communication based on a lunar constellation according to claim 3, characterized in that: The step 4 also includes the following steps: if there is a faulty satellite in the current shortest path, the faulty satellite is isolated, and the shortest path for multi-hop data relay transmission is found again through a breadth-first search algorithm, so that the starting satellite can achieve data transmission with the target satellite through the shortest path.

5. The method for earth-moon communication based on a lunar constellation according to claim 3, characterized in that: In step 1, the formed lunar constellation includes eight satellites; the starting satellite is a satellite on the back side of the moon, and the target satellite is a satellite on the front side of the moon.

6. The Earth-Moon communication method based on the lunar constellation according to claim 1, characterized in that: In step 4, data transmission between satellites of the lunar constellation adopts distributed data transmission and is backed up by multi-satellite redundancy.

7. An Earth-Moon communication system based on a lunar constellation, characterized in that: Comprising: a plurality of satellites: the plurality of satellites are distributed in a low lunar orbit and a mid lunar orbit, forming a lunar constellation that evenly covers the north and south poles and the equatorial region, and is used to execute the Earth-Moon communication method described in any one of claims 1 to 6.

8. The Earth-Moon communication system based on the lunar constellation according to claim 7, characterized in that: The satellite is provided with: Communication module: used to form a multi-hop data relay link with an adjacent satellite, to receive data from an adjacent satellite and send it to the next satellite in the multi-hop data relay link, and to send the received data to a storage unit; Path optimization module: used to find the shortest path for multi-hop data relay transmission through a breadth-first search algorithm; Storage module: used for redundant storage of received data and realization of multi-satellite redundant backup of communication data.

9. The Earth-Moon communication system based on the lunar constellation according to claim 8, characterized in that: The satellite is also provided with: Adaptive orbit control and attitude adjustment module: used to automatically adjust the satellite orbit and attitude according to the influence of the moon's gravity, always maintaining the best earth-moon communication angle; Automatic diagnosis and maintenance module: used to monitor the satellite's own status in real time and perform status diagnosis. If a fault occurs, it will be repaired. If the repair fails, it will switch to the backup equipment.

10. The Earth-Moon communication system based on the lunar constellation according to claim 8, characterized in that: The communication module communicates with adjacent satellites through an anti-interference protocol, and the anti-interference protocol reduces the bit error rate through an adaptive data transmission strategy to improve the reliability of the signal under the influence of space radiation; the adaptive data transmission strategy includes automatic retransmission and error correction to ensure the integrity and stable transmission of data in an interference environment.

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