CN103116325B - Cluster module spacecraft system and control method thereof - Google Patents

Abstract

A cluster flight module spacecraft system and a control method thereof, relating to a spacecraft system. In order to solve the problem that once a spacecraft system fails or its lifespan expires and cannot work normally, the entire spacecraft system will be scrapped and the loss will be huge. It includes M service module spacecraft and N task module spacecraft; said service module spacecraft refers to energy supply module spacecraft, data processing module spacecraft, telemetry control and data transmission module spacecraft and cluster control module spacecraft ; Among the M service module spacecraft, there are m energy supply module spacecraft, n data processing module spacecraft, x telemetry control and data transmission module spacecraft and y swarm control module spacecraft; m,n, Both x and y are positive integers, M=m+n+x+y; single or multiple mission module spacecraft are paired with the service module spacecraft, and the mission module spacecraft is started to work. It is used to complete space missions.

Description

A cluster flight module spacecraft system and its control method

technical field

The invention relates to a spacecraft system, in particular to a cluster flight module spacecraft system and a control method thereof.

Background technique

With the development of space science and technology, especially the outstanding contributions of satellites in military reconnaissance, communication and navigation, weather forecasting, resource detection, scientific investigation, etc., there are more and more types of satellites and their applications are becoming more and more extensive. However, the current satellite structure is complex and expensive. Once it fails or its lifespan expires and cannot work normally, the entire spacecraft system will be scrapped, and the instruments and parts that are not faulty are not fully utilized. Therefore, there is a vicious circle in which redundancy is increased in order to reduce risks, costs increase, and losses increase after failures occur.

Contents of the invention

The purpose of the present invention is to solve the problem that once the current spacecraft system breaks down or its service life expires, it cannot work normally, and the entire spacecraft system will be scrapped and the loss will be large. The present invention provides a cluster flight module spacecraft system and its control method .

A cluster flight module spacecraft system of the present invention,

It includes M service module spacecraft and N task module spacecraft, M and N are both positive integers;

The service module spacecraft refers to the energy supply module spacecraft, the data processing module spacecraft, the telemetry control and data transmission module spacecraft, and the cluster control module spacecraft;

Among the M service module spacecraft, there are m energy supply module spacecraft, n data processing module spacecraft, x telemetry control and data transmission module spacecraft and y swarm control module spacecraft; m,n,x , y are all positive integers, M=m+n+x+y;

The energy supply module spacecraft is used to collect energy and provide energy for each module spacecraft of the cluster flight module spacecraft system;

The data processing module spacecraft is used to receive and process the status data and mission data of each module spacecraft of the cluster flight module spacecraft system, and perform on-orbit image generation and information extraction;

The telemetry control and data transmission module spacecraft is used to receive instructions from the ground station or relay satellite, and send the instructions to each module spacecraft of the cluster flight module spacecraft system, and at the same time transfer the data processed by the data processing module spacecraft, Images and information are transmitted to ground stations or relay satellites;

The swarm control module spacecraft is used to measure the relative position of each module spacecraft of the swarm flight module spacecraft system, and is also used to control the relative position of each module spacecraft of the swarm flight module spacecraft system;

The mission module spacecraft is used for ground remote sensing data acquisition, electronic reconnaissance and space exploration.

Based on the control method of the above-mentioned a kind of cluster flight module spacecraft system, it comprises the following steps:

The step of selecting N task module spacecraft and M service module spacecraft according to the task to be completed;

When the carrier launches N mission module spacecraft and M service module spacecraft into designated orbits, the step of separating the module spacecraft from the carrier;

Control K service module spacecraft among M service module spacecraft to pair with N task module spacecraft, and use L cluster control module spacecraft to adjust each module spacecraft in the cluster flight module spacecraft system by orbit control method The step of the relative position of L<K;

The pairing principle is: at least four service module spacecraft are paired with one or more task module spacecraft, and the four service module spacecraft include 1 energy supply module spacecraft, 1 data processing module spacecraft, 1 A telemetry control and data transmission module spacecraft and a swarm control module spacecraft;

Perform communication link, energy transmission and on-board instrument parameter initialization for N service module spacecraft, adjust the orbit and attitude of each module spacecraft according to the predetermined configuration, and start the steps of the task module spacecraft to start working;

A step of performing real-time monitoring on the cluster flight module spacecraft system.

Each module spacecraft of the cluster flight module spacecraft system is provided with a backup module spacecraft, and the control method of the system includes the following steps:

The step of selecting N task module spacecraft and M service module spacecraft according to the task to be completed;

When the carrier launches N mission module spacecraft and M service module spacecraft into designated orbits, the step of separating the module spacecraft from the carrier;

Control the K service module spacecraft in the M service module spacecraft to pair with the N task module spacecraft, and use the L cluster control module spacecraft to adjust each module in the cluster flight module spacecraft system using the traditional orbit control method The step of the relative position of the spacecraft, L<K;

The pairing principle is: at least four service module spacecraft are paired with one or more task module spacecraft, and the four service module spacecraft include 1 energy supply module spacecraft, 1 data processing module spacecraft, 1 A telemetry control and data transmission module spacecraft and a swarm control module spacecraft;

Perform communication link, energy transmission and on-board instrument parameter initialization for N service module spacecraft, adjust the orbit and attitude of each module spacecraft according to the predetermined configuration, and start the steps of the task module spacecraft to start working;

The step of performing real-time monitoring on the cluster flight module spacecraft system;

When it is monitored that a module spacecraft of the cluster flight module spacecraft system fails, the step of starting the corresponding backup module spacecraft of the failed module spacecraft to replace the failed module spacecraft to work.

The invention has the advantage that it consists of several service module spacecraft and several mission module spacecraft, and the service modules and mission modules can be freely assembled according to the needs of missions, so as to realize diversified functions and rapid response. Since there is no physical connection between the module spacecraft, when the module spacecraft fails or needs to be improved, a single module spacecraft can be launched and replaced independently, while other module spacecraft continue to use, thereby reducing the cost of the satellite and improving the cost of components. Utilization, also reduces space junk. Separating the service module spacecraft from the mission module spacecraft is conducive to the commercialization and internationalization of the satellite industry. For satellite operators, mission module spacecraft with different performances can be selected to work in the cluster according to different customer needs.

Description of drawings

Fig. 1 is a schematic structural diagram of a cluster flight module spacecraft system according to the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of a swarm flight module spacecraft system according to the present invention.

Fig. 3 is a structural schematic diagram of replacing a faulty module spacecraft with a backup module spacecraft in an embodiment of a cluster flight module spacecraft system according to the present invention.

Fig. 4 is a schematic structural diagram of an update mission module spacecraft in an embodiment of a swarm flight module spacecraft system according to the present invention.

Fig. 5 is a schematic structural diagram of increasing the number of service module spacecraft according to tasks in an embodiment of a cluster flight module spacecraft system according to the present invention.

Fig. 6 is a schematic structural diagram of four clusters in an embodiment of a cluster flight module spacecraft system according to the present invention.

Detailed ways

Specific embodiment one: a kind of cluster flight module spacecraft system described in this embodiment, it comprises M service module spacecraft and N task module spacecraft, M, N are all positive integers;

The service module spacecraft refers to the energy supply module spacecraft, the data processing module spacecraft, the telemetry control and data transmission module spacecraft, and the cluster control module spacecraft;

Among the M service module spacecraft, there are m energy supply module spacecraft, n data processing module spacecraft, x telemetry control and data transmission module spacecraft and y swarm control module spacecraft; m,n,x , y are all positive integers, M=m+n+x+y;

The energy supply module spacecraft is used to collect energy and provide energy for each module spacecraft of the cluster flight module spacecraft system;

The data processing module spacecraft is used to receive and process the status data and mission data of each module spacecraft of the cluster flight module spacecraft system, and perform on-orbit image generation and information extraction;

The telemetry control and data transmission module spacecraft is used to receive instructions from the ground station or relay satellite, and send the instructions to each module spacecraft of the cluster flight module spacecraft system, and at the same time transfer the data processed by the data processing module spacecraft, Images and information are transmitted to ground stations or relay satellites;

The swarm control module spacecraft is used to measure the relative position of each module spacecraft of the swarm flight module spacecraft system, and is also used to control the relative position of each module spacecraft of the swarm flight module spacecraft system;

The mission module spacecraft is used for ground remote sensing data acquisition, electronic reconnaissance and space exploration.

For countries and regions with relatively weak aerospace technology, they can develop mission module spacecraft according to their national conditions and rent service modules for in-orbit flight.

Embodiment 2: This embodiment is a further limitation of the cluster flight module spacecraft system described in Embodiment 1. The mission module spacecraft is an optical payload module spacecraft or an electronic reconnaissance payload module spacecraft or a radar payload module spacecraft;

The optical payload module spacecraft is used to take pictures of the ground and obtain ground image data;

The electronic reconnaissance payload module spacecraft is used to collect electromagnetic wave information to detect, monitor and track targets;

The radar payload module spacecraft is used to transmit and receive radar electromagnetic waves, obtain the earth's ground object information, and have the ability to obtain information all-weather and all-weather.

Specific embodiment three: this embodiment is a further limitation of the cluster flight module spacecraft system described in specific embodiment one, and the energy supply module spacecraft provides energy for the cluster flight module spacecraft system. Beams of solar energy, microwave energy, or laser energy.

Embodiment 4: This embodiment is a further limitation of the cluster flight module spacecraft system described in Embodiment 1 or 2. Each module spacecraft adopts a unified standard and protocol, and all adopt short-distance free In the form of flight, information and energy are exchanged through wireless links.

The multiple module spacecraft of the service module spacecraft and the mission module spacecraft have no physical connection during the orbital flight, and use the form of close-range free flight to exchange information and energy through wireless links.

Embodiment 5: This embodiment is a further limitation of the cluster flight module spacecraft system described in Embodiment 1 or 2, and each module spacecraft is equipped with a backup module spacecraft.

Embodiment 6: This embodiment is a further limitation of the control method of a cluster flight module spacecraft system described in Embodiment 1, which includes the following steps:

The step of selecting N task module spacecraft and M service module spacecraft according to the task to be completed;

When the carrier launches N mission module spacecraft and M service module spacecraft into designated orbits, the step of separating the module spacecraft from the carrier;

Control K service module spacecraft among M service module spacecraft to pair with N task module spacecraft, and use L cluster control module spacecraft to adjust each module spacecraft in the cluster flight module spacecraft system by orbit control method The step of the relative position of L<K;

The pairing principle is: at least four service module spacecraft are paired with one or more task module spacecraft, and the four service module spacecraft include 1 energy supply module spacecraft, 1 data processing module spacecraft, 1 A telemetry control and data transmission module spacecraft and a swarm control module spacecraft;

Perform communication link, energy transmission and on-board instrument parameter initialization for N service module spacecraft, adjust the orbit and attitude of each module spacecraft according to the predetermined configuration, and start the steps of the task module spacecraft to start working;

A step of performing real-time monitoring on the cluster flight module spacecraft system.

In this embodiment, the existing orbit control method can be used to adjust the relative position of each module spacecraft in the cluster flight module spacecraft system.

According to the specific requirements of the task, a large cluster can be dispersed into several small clusters to realize functions independently or form formations and constellations to realize the overall function expansion. Several small clusters can also be assembled into a large cluster to jointly complete a single small cluster. function, each small cluster has a cluster control module spacecraft control.

Embodiment 7: This embodiment is a further limitation of the control method of a cluster flight module spacecraft system described in Embodiment 5, and it also includes the following steps:

The step of selecting N task module spacecraft and M service module spacecraft according to the task to be completed;

When the carrier launches N mission module spacecraft and M service module spacecraft into designated orbits, the step of separating the module spacecraft from the carrier;

Control K service module spacecraft among M service module spacecraft to pair with N task module spacecraft, and use L cluster control module spacecraft to adjust each module spacecraft in the cluster flight module spacecraft system by orbit control method The relative position of the step, L<K;

The pairing principle is: at least four service module spacecraft are paired with one or more task module spacecraft, and the four service module spacecraft include 1 energy supply module spacecraft, 1 data processing module spacecraft, 1 A telemetry control and data transmission module spacecraft and a swarm control module spacecraft;

Perform communication link, energy transmission and on-board instrument parameter initialization for N service module spacecraft, adjust the orbit and attitude of each module spacecraft according to the predetermined configuration, and start the steps of the task module spacecraft to start working;

The step of performing real-time monitoring on the cluster flight module spacecraft system;

When it is monitored that a module spacecraft of the cluster flight module spacecraft system fails, the step of starting the corresponding backup module spacecraft of the failed module spacecraft to replace the failed module spacecraft to work.

If a component is found to be faulty and causes the failure of the entire module, start the backup module in the system, exchange the positions of the faulty module and the backup module, and adjust the attitude of the backup module so that it can replace the original module and work normally.

Embodiment 8: This embodiment is a further limitation of the control method of a cluster flight module spacecraft system described in Embodiment 6 or 7. The remote measurement control and data transmission module spacecraft is also used for guidance The updated module spacecraft rendezvous with the cluster flight module spacecraft system, and the control method also includes the following steps:

When the telemetry control and data transmission module spacecraft guides the updated module spacecraft to rendezvous with the cluster flight module spacecraft system, the orbit and attitude of the updated module spacecraft in the cluster flight module spacecraft system Steps to make an assignment update.

According to the specific requirements of the mission, for the same type of mission module spacecraft, an updated mission module spacecraft can be launched from the ground into the system to achieve system performance improvement.

The expansion of the service module spacecraft improves the service capability of the system. According to the specific needs of the mission, in conjunction with the function expansion and performance improvement of the mission module spacecraft, the cluster control spacecraft reselects the appropriate service module spacecraft or launches a service module spacecraft with better performance from the ground to pair with the mission module spacecraft to form a New swarm flight module spacecraft system.

Embodiment 9: This embodiment is a further limitation of the control method of a cluster flight module spacecraft system described in Embodiment 6 or 7.

It also includes the following steps:

When a task module needs to be re-paired, the remaining M-K service module spacecraft are selected for pairing, and the cluster control module spacecraft in the service module spacecraft is used to adjust the relationship between the service module spacecraft and the task module spacecraft. Steps for the relative position of each module spacecraft.

Embodiment 10: This embodiment is a further limitation of the control method of a swarm flight module spacecraft system described in Embodiment 6 or 7. The orbit control method is jet control or internal field force control.

Each module flies in clusters according to a certain configuration, and the relative positions among them can be controlled by existing orbital control methods, such as jet control, or internal field force control, such as electromagnetic force or Coulomb force. If relative position control is not required, the cluster adopts a passive stable orbit to fly freely.

The present invention also provides an embodiment. The cluster flight module spacecraft system described in this embodiment is mainly used for earth observation. As shown in Figure 2, the mission module spacecraft includes four optical payload module spacecraft, and the optical payloads are CCD cameras with resolutions of 10m, 10m, 3m, and 3m, respectively. 4 energy supply module spacecraft, 4 data processing module spacecraft, 4 telemetry control and data transmission module spacecraft and 4 swarm control module spacecraft.

The cluster flight module spacecraft system is launched to a designated orbit by the carrier, and the system is separated from the carrier. The energy supply module expands the solar battery wings of the spacecraft to supply power to the system through the wireless link, and the cluster control module controls the system through the wireless link. The spacecraft of each module flies at close range, and adopts orbit control technology to adjust the relative position to form a certain configuration.

When the swarm control module spacecraft finds that the optical payload module spacecraft with a resolution of 3m is faulty, the backup 3m optical payload module spacecraft starts to work, and the faulty 3m optical payload module spacecraft is scrapped, flies away from the system, and becomes space junk, as shown in the figure 3.

When images with a higher resolution of 1m are required, the optical payload module spacecraft with a resolution of 1m is launched from the ground to update the optical payload module spacecraft with a resolution of 10m. After being certified by the swarm control module spacecraft, the replacement resolution is 10m The optical payload module spacecraft of 10m is working, and the 10m optical payload module spacecraft becomes a backup module, as shown in Figure 4.

When it is necessary to increase the amount of data transmission, one backup energy supply module spacecraft, one data processing module spacecraft and one telemetry control and data transmission module spacecraft work, and pair with the working mission module spacecraft to reduce the data transmission time. From 5min to 10min, as shown in Figure 5. When a stereoscopic image is required, the backup 10m optical payload module spacecraft will work, and correspondingly add 1 energy supply module spacecraft, 1 data processing module spacecraft and 1 telemetry control and data transmission spacecraft to cooperate with the task module spacecraft to complete the task . The two 10m optical payload module spacecraft adjust their relative positions to complete the three-dimensional mapping task, as shown in Figure 5.

When continuous observation of a target is required, the system is dispersed into four small clusters. Each optical load module spacecraft forms a small cluster with 1 energy supply module spacecraft, 1 data processing module spacecraft, 1 telemetry control and data transmission module spacecraft and 1 cluster control spacecraft. Fly to the designated position of the orbit, form a constellation, and realize continuous observation of a target, as shown in Figure 6.

The above description is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements can be made without departing from the technical principle of the present invention. These improvements should also be regarded as protection scope of the present invention.

Claims (9)

1. a control method for cluster flight module Space Vehicle System, described system comprises M service module spacecraft and N task module spacecraft, M, N are positive integer;

Described service module spacecraft refers to energy resource supply module spacecraft, data processing module spacecraft, remote measurement control and data transmission module spacecraft and cluster control module spacecraft;

In M service module spacecraft, there is the set of m energy resource supply module spacecraft, a n data processing module spacecraft, an x remote measurement control and data transmission module spacecraft and y cluster control module spacecraft; M, n, x, y is positive integer, M=m+n+x+y;

Energy resource supply module spacecraft, for collecting the energy, and provides the energy for each module spacecraft of described cluster flight module Space Vehicle System;

Data processing module spacecraft, for status data and the task data of each module spacecraft of cluster flight module Space Vehicle System described in reception & disposal, and carries out image generation and information extraction in-orbit;

Remote measurement control and data transmission module spacecraft, for the instruction of satellite receiver or repeater satellite, and instruction is sent to each module spacecraft of cluster flight module Space Vehicle System, data after treatment data processing module spacecraft, image and information are sent to land station or repeater satellite simultaneously;

Cluster control module spacecraft, for the relative position between each module spacecraft of measuring set swarming row module Space Vehicle System, also for controlling the relative position of each module spacecraft of cluster flight module Space Vehicle System;

Task module spacecraft, for obtaining ground remotely-sensed data, electronics investigation and space exploration; It is characterized in that,

Described method comprises the steps:

According to the step of task choosing N to be completed a task module spacecraft and M service module spacecraft;

When vehicle is by N task module spacecraft and M service module Spacecraft Launch during to track designation, described M the step that service module spacecraft separates with vehicle with N task module spacecraft;

Control K service module spacecraft and N task module spacecraft pairing in M service module spacecraft, and utilize L cluster control module spacecraft to adopt method for controlling scrolling to adjust the step of the relative position of the each module spacecraft in cluster flight module Space Vehicle System, L<K;

Described pair principle is: the pairing of at least four service module spacecrafts and one or more task module spacecraft, and described four service module spacecrafts comprise 1 energy resource supply module spacecraft, 1 data processing module spacecraft, 1 remote measurement control and data transmission module spacecraft and 1 cluster control module spacecraft;

N service module spacecraft carried out to communication link, Energy Transfer and spaceborne instrument parameter initialization, according to track and the attitude of predetermined formation adjusting modules spacecraft, the step that initiating task module spacecraft is started working;

Described cluster flight module Space Vehicle System is carried out to the step of monitoring in real time.

2. the control method of a kind of cluster flight module Space Vehicle System according to claim 1, is characterized in that, described task module spacecraft is optics load module spacecraft or electronic reconnaissance load module spacecraft or radar load module spacecraft;

Optics load module spacecraft, for being taken pictures in ground, obtains ground image data;

Electronic reconnaissance load module spacecraft, for collecting electromagnetic wave information, to target carry out investigations, Monitor and track;

Radar load module spacecraft, for transmitting and receiving radar electromagnetic wave, obtains the terrestrial object information of the earth, possesses the ability of round-the-clock round-the-clock obtaining information.

3. the control method of a kind of cluster flight module Space Vehicle System according to claim 1, it is characterized in that, described energy resource supply module spacecraft provides energy mode to comprise pack sun power, microwave energy or laser energy for described cluster flight module Space Vehicle System.

4. the control method of a kind of cluster flight module Space Vehicle System according to claim 1 and 2, it is characterized in that, described each module spacecraft all adopts unified standard and agreement, all adopts the form of closely free flight, carries out the mutual of information and energy by wireless link.

5. the control method of a kind of cluster flight module Space Vehicle System according to claim 1 and 2, is characterized in that, described each module spacecraft all arranges backup module spacecraft.

6. the control method of a kind of cluster flight module Space Vehicle System according to claim 5, is characterized in that, it also comprises the steps:

In the time monitoring certain module spacecraft inefficacy of described cluster flight module Space Vehicle System, the step that the module spacecraft that the corresponding backup module spacecraft replacement of module spacecraft that startup was lost efficacy was lost efficacy carries out work.

7. the control method of a kind of cluster flight module Space Vehicle System according to claim 6, it is characterized in that, described remote measurement control and data transmission module spacecraft, also, for guiding module spacecraft and the intersection of described cluster flight module Space Vehicle System of renewal, described control method also comprises the steps:

The module spacecraft upgrading when the guiding of remote measurement control and data transmission module spacecraft is during with the intersection of described cluster flight module Space Vehicle System, and the track to the module spacecraft of described renewal in described cluster flight module Space Vehicle System and attitude are distributed the step of renewal.

8. the control method of a kind of cluster flight module Space Vehicle System according to claim 6, is characterized in that, it also comprises the steps:

In the time that certain task module need to match again, in remaining M-K service module spacecraft, select to match, and utilize cluster control module spacecraft in described service module spacecraft to adjust the step of the relative position of each module spacecraft of described service module spacecraft and task module spacecraft.

9. the control method of a kind of cluster flight module Space Vehicle System according to claim 6, is characterized in that, described method for controlling scrolling is the control of jet control or inner field force.