CN114066201A - Real-time feedback remote sensing satellite task planning method and system - Google Patents
Real-time feedback remote sensing satellite task planning method and system Download PDFInfo
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Abstract
本申请涉及卫星观测控制技术领域，具体提供一种实时反馈的遥感卫星任务规划方法及系统，对于地面站上注的第一卫星动作序列，目标遥感卫星依次执行与所述第一卫星动作序列相匹配的目标成像任务，并生成所述目标成像任务的执行结果，同时通过星间链路将所述目标成像任务的执行结果实时发送至地面站；地面站对目标遥感卫星的执行结果进行快速响应，生成第二卫星动作序列并上注给目标遥感卫星，从而达到实时调整目标遥感卫星资源的目的，实现对目标遥感卫星的高效利用和对成像目标的快速覆盖。
The present application relates to the technical field of satellite observation and control, and specifically provides a remote sensing satellite mission planning method and system for real-time feedback. For the first satellite action sequence registered on the ground station, the target remote sensing satellite sequentially executes the same sequence as the first satellite action sequence. match the target imaging task, generate the execution result of the target imaging task, and send the execution result of the target imaging task to the ground station in real time through the inter-satellite link; the ground station quickly responds to the execution result of the target remote sensing satellite , generate the second satellite action sequence and add it to the target remote sensing satellite, so as to achieve the purpose of adjusting the target remote sensing satellite resources in real time, and realize the efficient use of the target remote sensing satellite and the rapid coverage of the imaging target.
Description
Technical Field
The application relates to the technical field of satellite observation control, in particular to a real-time feedback remote sensing satellite task planning method and system.
Background
In the in-orbit operation process of the remote sensing satellite, comprehensive planning is required according to various factors such as the satellite orbit, the geographic position of a task target, the illumination condition, the weather condition, the target priority and the like, and finally, the in-orbit action sequence of the satellite is obtained and a remote sensing image of a related target is obtained through execution.
Typically, a global planning can be performed in the ground system based on the above factors to obtain a satellite motion sequence, and the satellite is annotated with the motion sequence during the satellite transit over the ground station, and the satellite performs the motion sequence strictly according to the received motion sequence. However, in this method, since there is a certain time delay (i.e., "planning-execution" time delay) between the time of performing the task planning on the ground and the time of performing the final task, the satellite may not perform the task due to the change of the actual in-orbit state, for example, the task cannot be executed due to insufficient energy of the satellite, or the image of the planned target cannot be obtained due to the coverage of the cloud layer on the ground surface, that is, there may be a probability of failure of the task, so that the satellite utilization rate is reduced.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method and a system for real-time feedback remote sensing satellite task planning, which can feed back a task execution result in real time to correct or adjust the task execution result in time.
The remote sensing satellite task planning method with real-time feedback provided by the embodiment of the application comprises the following steps:
the method comprises the steps that a ground station plans a first satellite action sequence based on attribute information of an observation target, satellite operation data and ground weather information, and the first satellite action sequence is injected to a target remote sensing satellite;
the target remote sensing satellite sequentially executes a target imaging task matched with the first satellite action sequence according to the first satellite action sequence injected on the ground station and generates an execution result of the target imaging task;
the target remote sensing satellite sends the execution result of the target imaging task to a ground station in real time through an inter-satellite link;
and the ground station plans a second satellite action sequence according to the received execution result of the target imaging task, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link so that the target remote sensing satellite sequentially executes the target imaging task matched with the second satellite action sequence.
In some embodiments, the ground station plans the first satellite action sequence based on the attribute information of the observation target and the satellite operation data, and comprises the following steps:
the ground station acquires attribute information of an observation target according to an observation requirement provided by a user, wherein the attribute information of the observation target comprises a place and a time period of the observation target and the priority of the observation target;
the method comprises the steps that a ground station obtains satellite operation data of a target remote sensing satellite in real time through an inter-satellite link, wherein the satellite operation data comprises satellite orbit data, satellite energy and satellite storage space conditions;
the ground station acquires ground weather information through the internet;
and the ground station plans a first satellite action sequence based on the acquired attribute information of the observation target, the satellite operation data and the ground weather information so as to complete the observation requirement of the user.
In some embodiments, the ground station up-injects the first satellite motion sequence to the target remote sensing satellite by:
the ground station injects the first satellite action sequence to a target remote sensing satellite through an inter-satellite link;
or the ground station injects the first satellite action sequence to the target remote sensing satellite through a satellite-ground link when the satellite passes the border.
In some embodiments, the results of the target imaging task including success and failure of execution, the target telemetry satellite generating the results of the target imaging task, comprising:
when the on-satellite energy or on-satellite storage space condition of the target remote sensing satellite is not enough to execute the corresponding target imaging task, the target remote sensing satellite generates an execution result of the corresponding target imaging task as an execution failure;
and when the ground weather information does not meet the observation requirement of the user, the target remote sensing satellite generates an execution result of the corresponding target imaging task, and the execution result is execution failure.
In some embodiments, the target remote sensing satellite sends the execution result of the target imaging task to a ground station in real time through an inter-satellite link, and the method includes the following steps:
the target remote sensing satellite sends the execution result of the target imaging task to a relay node of an inter-satellite link in real time;
and the relay node of the inter-satellite link transmits the received execution result of the target imaging task to the ground station in real time.
In some embodiments, the ground station planning a second sequence of satellite actions based on the received results of the performance of the target imaging task, comprises the steps of:
and if the received execution result of the target imaging task is execution failure, planning the target imaging task into a second satellite action sequence.
In some embodiments, the ground station annotates the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link, and the method comprises the following steps:
the ground station injects the second satellite action sequence to a relay node of the inter-satellite link in real time;
and the relay node of the inter-satellite link injects the received second satellite action sequence to the target remote sensing satellite in real time.
In some embodiments, the relay node of the inter-satellite link comprises any other remote sensing satellite with an inter-satellite communication function, or a relay satellite, belonging to the same satellite constellation as the target remote sensing satellite.
The remote sensing satellite mission planning system of real-time feedback that this application embodiment provided includes:
the system comprises a ground station, a target remote sensing satellite and an inter-satellite link, wherein the ground station plans a first satellite action sequence based on attribute information of an observation target and satellite operation data, and the first satellite action sequence is injected to the target remote sensing satellite; the target remote sensing satellite receives the first satellite action sequence annotated on the ground station and executes corresponding actions in sequence according to the first satellite action sequence; the target remote sensing satellite generates an execution result for executing a corresponding action in the first satellite action sequence, and the execution result of the corresponding action is sent to the ground station in real time through an inter-satellite link; and the ground station plans a second satellite action sequence according to the received execution result of the corresponding action, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link so that the target remote sensing satellite sequentially executes the corresponding action according to the second satellite action sequence.
In some embodiments, the relay node of the inter-satellite link comprises any other remote sensing satellite with an inter-satellite communication function, or a relay satellite, belonging to the same satellite constellation as the target remote sensing satellite.
According to the real-time feedback remote sensing satellite task planning method and system, for a first satellite action sequence injected on a ground station, a target remote sensing satellite sequentially executes a target imaging task matched with the first satellite action sequence, an execution result of the target imaging task is generated, and meanwhile the execution result of the target imaging task is sent to the ground station in real time through an inter-satellite link; the ground station quickly responds to the execution result of the target remote sensing satellite, generates a second satellite action sequence and injects the second satellite action sequence to the target remote sensing satellite, so that the aim of adjusting the target remote sensing satellite resources in real time is fulfilled, and efficient utilization of the target remote sensing satellite and quick coverage of an imaging target are realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 shows a flowchart of a remote sensing satellite mission planning method provided in an embodiment of the present application;
fig. 2 is a flowchart illustrating a ground station planning a first satellite action sequence according to an embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating a target remote sensing satellite transmitting an execution result to a ground station according to an embodiment of the present application;
fig. 4 shows a flowchart of a motion sequence of a ground station injecting a second satellite onto a target remote sensing satellite according to an embodiment of the present application;
fig. 5 shows a block diagram of a remote sensing satellite mission planning system according to an embodiment of the present application.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be performed out of order, and steps without logical context may be performed in reverse order or simultaneously. One skilled in the art, under the guidance of this application, may add one or more other operations to, or remove one or more operations from, the flowchart.
In order to avoid the situation that the mission is unsuccessful due to the situation change during the time delay of planning-execution in the background technology, a mission planning system is carried on a satellite to carry out autonomous planning, and judgment and adjustment can be carried out to a certain extent according to information such as the real-time state of the satellite, the state of a ground cloud layer and the like. However, the task planning is performed autonomously on the satellite, which has a certain randomness, mainly caused by some state factors, such as the energy condition on the satellite at the task execution time, the cloud coverage of the target location at the access time, and the like, and the final execution result needs to be fed back to the ground until the next satellite passes through the ground station, and the ground can perform further arrangement and planning after receiving information, for example, the satellite is arranged to continue to image the target or other satellites are called to image the target or cancel the imaging of the target when the satellite next meets the condition. The existence of the execution-feedback time delay is caused, the satellite user cannot adjust the planning strategy and the resource allocation in time, so that the target cannot be covered with higher efficiency, and the utilization rate of the satellite or the constellation is reduced. Furthermore, the problem of execution-feedback time delay is solved to a certain extent by adding a special command tower communication satellite as a relay node, but if the relay node is placed in a near-earth orbit, the real-time performance is difficult to guarantee, if the relay node is placed in a geosynchronous orbit, the deployment cost is extremely high, the communication link loss is large, and once the node fails, the whole planning function of the system is lost. Based on the method and the system, the real-time feedback of the task execution result is realized by utilizing the communication link between the satellites, and on the basis, the satellite resources are adjusted in real time through the quick response of the ground task planning system, so that the efficient utilization of the satellites and the quick coverage of the imaging target are realized.
As shown in fig. 1 in the specification, the embodiment provides a real-time feedback remote sensing satellite mission planning method, which includes the following steps:
s1, planning a first satellite action sequence based on attribute information of an observation target, satellite operation data and ground weather information by the ground station, and annotating the first satellite action sequence to a target remote sensing satellite;
s2, sequentially executing a target imaging task matched with the first satellite action sequence by the target remote sensing satellite according to the first satellite action sequence injected on the ground station, and generating an execution result of the target imaging task;
s3, the target remote sensing satellite sends the execution result of the target imaging task to a ground station in real time through an inter-satellite link;
s4, the ground station plans a second satellite action sequence according to the received execution result of the target imaging task, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link, so that the target remote sensing satellite sequentially executes the target imaging task matched with the second satellite action sequence.
The remote sensing satellite is used as an artificial satellite of an outer space remote sensing platform, the satellite orbit can be determined according to requirements, the satellite can cover the whole earth or any specified area within a specified time, and when the satellite runs along a geosynchronous orbit, the satellite can continuously remotely sense a specified region on the earth surface. The remote sensing satellite mainly comprises three types, namely a meteorological satellite, a land satellite and a marine satellite, wherein the meteorological satellite mainly uses the remote sensing satellite for collecting meteorological data as a main task and provides a large amount of real-time data for meteorological forecasting, typhoon formation and motion process monitoring, ice and snow coverage monitoring, atmospheric and space physical research and the like, the land satellite mainly collects earth resources and environment information, and the marine satellite mainly collects marine resources and environment information. In the application, the target remote sensing satellite can be regarded as a satellite for imaging a target according to user requirements.
In step S1, as shown in fig. 2, the ground station plans a first satellite action sequence based on the attribute information of the observation target and the satellite operation data, and includes the following steps:
s101, acquiring attribute information of an observation target by a ground station according to an observation requirement provided by a user, wherein the attribute information of the observation target comprises a place and a time period of the observation target and a priority of the observation target;
s102, a ground station acquires satellite operation data of a target remote sensing satellite in real time through an inter-satellite link, wherein the satellite operation data comprises satellite orbit data, and on-satellite energy and on-satellite storage space conditions;
s103, the ground station acquires ground weather information through the Internet;
s104, the ground station plans a first satellite action sequence based on the acquired attribute information of the observation target, the satellite operation data and the ground weather information so as to complete the observation requirement of the user.
As mentioned above, the task of the target sensor satellite in this application is to obtain image information of a specified target on the earth's surface according to the user's observation needs. The observation requirement of the user is transmitted to the ground station, and the ground station acquires attribute information of an observation target, such as observation location, time and priority of a plurality of observation targets, according to the observation requirement provided by the user, so as to plan a first action sequence of the target sensor satellite; of course, in addition to taking the attribute information of the observation target as the consideration factor of the first motion sequence of the target sensor satellite, the factors such as the satellite operation data and the weather information need to be considered. The satellite operation data mainly comprises satellite orbit data of a target sensor satellite, on-satellite energy conditions and on-satellite storage space conditions, namely the resource allocation of the target sensor satellite is related; the ground weather information can be directly obtained from the internet, after all, the application of the meteorological satellite is mature, and the coverage condition of the cloud layer can seriously influence the imaging effect of the specified target. In summary, in the present application, the ground station comprehensively plans the first satellite action sequence in combination with the acquired attribute information of the observation target, the satellite operation data, and the ground weather information, so as to fulfill the observation requirement of the user.
In the satellite communication system, a satellite has two communication links, one is a satellite-to-ground link, and the other is an inter-satellite link. The inter-satellite link is a link for communication between satellites, and is also called an inter-satellite link or a cross link, and a plurality of satellites are interconnected together through the inter-satellite link to form a space communication network with the satellites as switching nodes, so that information transmission and switching between the satellites can be realized through the inter-satellite link. The inter-satellite link can realize small interference and large-capacity data transmission through optical communication, and can realize real-time communication; however, for the satellite-ground link, the interference is large due to the fact that radio waves pass through the atmosphere and rain attenuation factors are added, large-capacity communication is not easy to achieve, and communication can be conducted only when the satellite passes through the upper portion of the ground station, namely the window period.
In the application, the satellite operation data of the target sensor satellite is transmitted to the ground station by the target sensor satellite through an inter-satellite link in real time, so that the ground station can master the satellite operation data of the target sensor satellite in real time, and the action sequence of the target sensor satellite is planned accurately and timely; for example, for a first satellite action sequence planned by observation requirements of users with a relatively long time limit, the ground station can adopt the satellite-ground link to inject the first satellite action sequence to the target remote sensing satellite, namely when the target remote sensing satellite jumps above the ground station, the ground station injects the first satellite action sequence to the target remote sensing satellite; and for the first satellite action sequence planned by the observation requirements of some users with short time limit, the ground station can adopt the inter-satellite link to inject the target remote sensing satellite in real time.
In step S2, after receiving the first satellite motion sequence annotated by the ground station, the target remote sensing satellite sequentially executes matched target imaging tasks according to the first satellite motion sequence at a specified time, where generally, each satellite motion sequence includes imaging tasks of multiple targets. And after the target remote sensing satellite executes the imaging task of the single target in the first satellite action sequence, feeding back the execution result of the corresponding target imaging task according to the actual condition.
Typically, the execution results include execution success and execution failure. If the on-satellite energy or on-satellite storage space of the target remote sensing satellite is insufficient, and the abnormal target imaging task is abnormally stopped, the target remote sensing satellite judges that the execution result of the corresponding target imaging task is execution failure; for another example, when the ground weather information shows that the coverage ratio of the cloud cover of the observation target area is large and does not meet the observation requirement of the user, the target remote sensing satellite also judges that the execution result of the corresponding target imaging task is execution failure.
In step S3, after the target remote sensing satellite generates the execution result of the corresponding target imaging task, the target remote sensing satellite sends the execution result to the ground station in real time through the inter-satellite link, so that the ground station replans the satellite action sequence, and especially, for the target imaging task which fails to be executed, the observation requirement of the user should be completed as much as possible. As shown in the attached figure 3 of the specification, the target remote sensing satellite sends the execution result of the corresponding target imaging task to the ground station in real time through the inter-satellite link, and the method comprises the following steps:
s301, the target remote sensing satellite sends the execution result of the target imaging task to a relay node of an inter-satellite link in real time;
s302, the relay node of the inter-satellite link transmits the received execution result of the target imaging task to a ground station in real time.
The relay node of the inter-satellite link is only responsible for forwarding the execution result of the corresponding target imaging task, and does not perform related processing and further plan the satellite action sequence.
In step S4, the ground station further plans a second satellite action sequence after receiving the execution result of the corresponding target imaging task sent by the target remote sensing satellite. In planning the second satellite motion sequence, in addition to the satellite operation data and the ground weather information mentioned in the above step S1, the corresponding target imaging task that failed to be performed in the first satellite motion sequence should be considered. The influence of the satellite operation data and the ground weather information on the planning of the second satellite action sequence is the same as the influence on the second satellite action sequence, and is not repeated herein; only analyzing the influence of the corresponding target imaging task which is executed in a failure manner in the first satellite action sequence on the second satellite action sequence, typically, as shown in fig. 5 in the specification, for the corresponding target imaging task which is executed successfully, the ground station does not take care of the target remote sensing satellite, and the target remote sensing satellite continues to advance the task without other construction; and for the imaging task of the corresponding target which fails to be executed, for example, the ground station plans the target remote sensing satellite to continue imaging when passing above the target next time, adds other imaging targets, plans other remote sensing satellites to image the target, and cancels subsequent imaging.
After the ground station generates the second satellite action sequence, the ground station injects the second satellite action sequence to the target remote sensing satellite through the inter-satellite link, so that the target remote sensing satellite sequentially executes a target imaging task matched with the second satellite action sequence, specifically, as shown in the attached figure 4 of the specification, the ground station injects the second satellite action sequence to the target remote sensing satellite through the inter-satellite link, and the method comprises the following steps:
s401, the ground station injects the second satellite action sequence to a relay node of the inter-satellite link in real time;
s402, the relay node of the inter-satellite link injects the received second satellite action sequence to the target remote sensing satellite in real time.
And the relay node of the inter-satellite link is only responsible for forwarding the second satellite action sequence planned by the ground station and does not perform related processing.
In addition, the relay node of the inter-satellite link mentioned in the present application may be any other remote sensing satellite having an inter-satellite communication function, which belongs to the same satellite constellation as the target remote sensing satellite, or may be other communication constellations or satellites not belonging to the present constellation, such as a relay satellite including but not limited to a short message function of the beidou constellation and a satellite communication relay function of an international maritime satellite.
According to the remote sensing satellite task planning method with real-time feedback, the remote sensing satellite realizes real-time feedback of a task execution result by means of an inter-satellite link, and the ground station receives the feedback of the task execution result of the remote sensing satellite, quickly completes re-planning of the task, and then re-configures and optimizes the remote sensing satellite or constellation resources.
Compared with the mode that the remote sensing satellite and the ground station communicate through the satellite-ground link in the prior art, although a certain probability of task execution failure exists at any time when the ground station injects a satellite action sequence to the remote sensing satellite, the ground station can timely acquire the result of success or failure of corresponding execution by virtue of real-time feedback of the inter-satellite link, and then timely correction and adjustment are carried out, including but not limited to updating, adjustment and deletion of the original action sequence, so that the maximization of the system operation efficiency is realized. Compared with the mode of carrying a task planning system on a remote sensing satellite for autonomous planning in the prior art, the method and the system thoroughly avoid execution-feedback time delay, and a user of the remote sensing satellite can adjust planning strategies and resource allocation in time, so that the target is covered more efficiently, and the utilization rate of the satellite or the constellation is improved. Compared with the mode of adding the commander tower in the prior art, the method and the system have the advantages that the information is transparently forwarded by means of the satellite or other satellites in the constellation, the complexity and the deployment cost of the system are reduced to a great extent, the medium-low orbit communication satellites are mostly in network-shaped layout, the loss of the real-time task planning function of the system due to the failure of a single satellite or a single node is avoided, and the communication between the remote sensing satellite and the ground station has stable reliability.
Based on the same inventive concept, the embodiment of the application also provides a real-time feedback remote sensing satellite task system corresponding to the real-time feedback remote sensing satellite task planning method.
As shown in fig. 5 in the specification, the real-time feedback remote sensing satellite task planning system provided by the embodiment of the application comprises a ground station, a target remote sensing satellite and an inter-satellite link, wherein the ground station plans a first satellite action sequence based on attribute information of an observation target and satellite operation data, and the first satellite action sequence is injected to the target remote sensing satellite; the target remote sensing satellite receives the first satellite action sequence annotated on the ground station and executes corresponding actions in sequence according to the first satellite action sequence; the target remote sensing satellite generates an execution result for executing a corresponding action in the first satellite action sequence, and the execution result of the corresponding action is sent to the ground station in real time through an inter-satellite link; and the ground station plans a second satellite action sequence according to the received execution result of the corresponding action, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link so that the target remote sensing satellite sequentially executes the corresponding action according to the second satellite action sequence.
In one possible embodiment, the ground station plans a first satellite action sequence based on the attribute information of the observation target and the satellite operation data, and comprises:
the sequence comprises the following steps:
the ground station acquires attribute information of an observation target according to an observation requirement provided by a user, wherein the attribute information of the observation target comprises a place and a time period of the observation target and the priority of the observation target;
the method comprises the steps that a ground station obtains satellite operation data of a target remote sensing satellite in real time through an inter-satellite link, wherein the satellite operation data comprises satellite orbit data, satellite energy and satellite storage space conditions;
the ground station acquires ground weather information through the internet;
and the ground station plans a first satellite action sequence based on the acquired attribute information of the observation target, the satellite operation data and the ground weather information so as to complete the observation requirement of the user.
In one possible implementation, the ground station injects the first satellite motion sequence to a target remote sensing satellite through an inter-satellite link;
or the ground station injects the first satellite action sequence to the target remote sensing satellite through a satellite-ground link when the satellite passes the border.
In one possible embodiment, the execution result of the target imaging task includes success in execution and failure in execution, and the target remote sensing satellite generates the execution result of the target imaging task, including:
when the on-satellite energy or on-satellite storage space condition of the target remote sensing satellite is not enough to execute the corresponding target imaging task, the target remote sensing satellite generates an execution result of the corresponding target imaging task as an execution failure;
and when the ground weather information does not meet the observation requirement of the user, the target remote sensing satellite generates an execution result of the corresponding target imaging task, and the execution result is execution failure.
In a possible implementation manner, the sending, by the target remote sensing satellite, the execution result of the target imaging task to the ground station in real time through an inter-satellite link includes:
the target remote sensing satellite sends the execution result of the target imaging task to a relay node of an inter-satellite link in real time;
and the relay node of the inter-satellite link transmits the received execution result of the target imaging task to the ground station in real time.
In one possible embodiment, the ground station planning a second sequence of satellite actions based on the received results of the performance of the target imaging task, comprises:
and if the received execution result of the target imaging task is execution failure, planning the target imaging task into a second satellite action sequence.
In a possible implementation, the ground station annotates the second satellite motion sequence to the target remote sensing satellite in real time through an inter-satellite link, and the method includes:
the ground station injects the second satellite action sequence to a relay node of the inter-satellite link in real time;
and the relay node of the inter-satellite link injects the received second satellite action sequence to the target remote sensing satellite in real time.
The relay node of the inter-satellite link comprises any other remote sensing satellite 2 or relay satellite with an inter-satellite communication function, wherein the remote sensing satellite 2 and the target remote sensing satellite 1 belong to the same satellite constellation.
According to the real-time feedback remote sensing satellite task planning system, for a first satellite action sequence injected on a ground station, a target remote sensing satellite sequentially executes a target imaging task matched with the first satellite action sequence, an execution result of the target imaging task is generated, and the execution result of the target imaging task is sent to the ground station in real time through an inter-satellite link; the ground station quickly responds to the execution result of the target remote sensing satellite, generates a second satellite action sequence and injects the second satellite action sequence to the target remote sensing satellite, so that the aim of adjusting the target remote sensing satellite resources in real time is fulfilled, and efficient utilization of the target remote sensing satellite and quick coverage of an imaging target are realized.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the technical solutions of the present application, and the scope of the present application is not limited thereto, although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A real-time feedback remote sensing satellite mission planning method is characterized by comprising the following steps:
the method comprises the steps that a ground station plans a first satellite action sequence based on attribute information of an observation target, satellite operation data and ground weather information, and the first satellite action sequence is injected to a target remote sensing satellite;
the target remote sensing satellite sequentially executes a target imaging task matched with the first satellite action sequence according to the first satellite action sequence injected on the ground station and generates an execution result of the target imaging task;
the target remote sensing satellite sends the execution result of the target imaging task to a ground station in real time through an inter-satellite link;
and the ground station plans a second satellite action sequence according to the received execution result of the target imaging task, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link so that the target remote sensing satellite sequentially executes the target imaging task matched with the second satellite action sequence.
2. The real-time feedback remote sensing satellite mission planning method according to claim 1, wherein the ground station plans the first satellite action sequence based on the attribute information of the observation target and the satellite operation data, and comprises the following steps:
the ground station acquires attribute information of an observation target according to an observation requirement provided by a user, wherein the attribute information of the observation target comprises a place and a time period of the observation target and the priority of the observation target;
the method comprises the steps that a ground station obtains satellite operation data of a target remote sensing satellite in real time through an inter-satellite link, wherein the satellite operation data comprises satellite orbit data, satellite energy and satellite storage space conditions;
the ground station acquires ground weather information through the internet;
and the ground station plans a first satellite action sequence based on the acquired attribute information of the observation target, the satellite operation data and the ground weather information so as to complete the observation requirement of the user.
3. The real-time feedback remote sensing satellite mission planning method of claim 2, wherein the ground station annotates the first satellite action sequence to the target remote sensing satellite by:
the ground station injects the first satellite action sequence to a target remote sensing satellite through an inter-satellite link;
or the ground station injects the first satellite action sequence to the target remote sensing satellite through a satellite-ground link when the satellite passes the border.
4. The real-time feedback remote sensing satellite mission planning method according to claim 2, wherein the execution result of the target imaging mission comprises success and failure in execution, and the target remote sensing satellite generates the execution result of the target imaging mission, comprising the steps of:
when the on-satellite energy or on-satellite storage space condition of the target remote sensing satellite is not enough to execute the corresponding target imaging task, the target remote sensing satellite generates an execution result of the corresponding target imaging task as an execution failure;
and when the ground weather information does not meet the observation requirement of the user, the target remote sensing satellite generates an execution result of the corresponding target imaging task, and the execution result is execution failure.
5. The real-time feedback remote sensing satellite mission planning method according to claim 2, wherein the target remote sensing satellite sends the execution result of the target imaging mission to a ground station in real time through an inter-satellite link, comprising the steps of:
the target remote sensing satellite sends the execution result of the target imaging task to a relay node of an inter-satellite link in real time;
and the relay node of the inter-satellite link transmits the received execution result of the target imaging task to the ground station in real time.
6. The real-time feedback remote sensing satellite mission planning method according to claim 2, wherein the ground station plans a second satellite action sequence according to the received execution result of the target imaging mission, and comprises the following steps:
and if the received execution result of the target imaging task is execution failure, planning the target imaging task into a second satellite action sequence.
7. The real-time feedback remote sensing satellite mission planning method according to claim 2, wherein a ground station annotates the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link, comprising the steps of:
the ground station injects the second satellite action sequence to a relay node of the inter-satellite link in real time;
and the relay node of the inter-satellite link injects the received second satellite action sequence to the target remote sensing satellite in real time.
8. The real-time feedback remote sensing satellite mission planning method according to claim 2, wherein the relay node of the inter-satellite link comprises any other remote sensing satellite having an inter-satellite communication function or a relay satellite belonging to the same satellite constellation as the target remote sensing satellite.
9. A real-time feedback remote sensing satellite mission planning system is characterized by comprising:
the system comprises a ground station, a target remote sensing satellite and an inter-satellite link, wherein the ground station plans a first satellite action sequence based on attribute information of an observation target and satellite operation data, and the first satellite action sequence is injected to the target remote sensing satellite; the target remote sensing satellite receives the first satellite action sequence annotated on the ground station and executes corresponding actions in sequence according to the first satellite action sequence; the target remote sensing satellite generates an execution result for executing a corresponding action in the first satellite action sequence, and the execution result of the corresponding action is sent to the ground station in real time through an inter-satellite link; and the ground station plans a second satellite action sequence according to the received execution result of the corresponding action, and notes the second satellite action sequence to the target remote sensing satellite in real time through an inter-satellite link so that the target remote sensing satellite sequentially executes the corresponding action according to the second satellite action sequence.
10. The real-time feedback remote sensing satellite mission planning system of claim 9, wherein the relay node of the inter-satellite link comprises any other remote sensing satellite having an inter-satellite communication function in a satellite constellation which is the same as the target remote sensing satellite, or a relay satellite.
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