A multi-task oriented satellite cluster time window collaborative planning and utilization system and method

Abstract

The present invention belongs to the technical field of collaborative planning of task time windows of earth observation systems of satellite clusters with different payloads, and specifically relates to a system and method for collaborative planning and utilization of star cluster time windows for multiple tasks. The present invention solves the resource scheduling problem of multiple types of satellite clusters, and can achieve full collaborative utilization of observation resources between multiple satellite clusters for multiple earth observation resource platforms such as optical satellite clusters, SAR satellite clusters, and electronic reconnaissance satellite clusters. The present invention simplifies the operation process of operators through user-oriented architecture design, can flexibly schedule relevant observation resources according to tasks, realize the collaborative task planning requirements of multiple types of satellite clusters, and use collaborative task planning methods to allocate resources to multiple types of satellite clusters, and output observation plans for each satellite cluster. The present invention has a real-time monitoring function, and can monitor the operating status of the entire observation resource platform and the execution of tasks in real time.

Description

Technical Field

[0001] The present invention belongs to the technical field of task time window collaborative planning of an earth observation system of a satellite cluster with different payloads, and specifically relates to a system and method for collaborative planning and utilization of satellite cluster time windows for multiple tasks. Background Art

[0002] With the progress of satellite overall design technology, assembly and measurement technology, and processing and production technology, the development cost of a single small satellite has dropped to the tens of millions, making it possible for satellite constellations to collaborate to complete complex earth observation tasks, and the principle has been verified. Calling multiple satellites for collaborative observation can realize complex observation modes such as regional search, multi-angle collaboration, and multi-payload confirmation. In emergency situations, single satellites have gradually been weakened in practical applications, and it has become an inevitable trend to complete more complex earth observation tasks by using multi-satellite collaboration. Satellite constellations are an on-orbit collaborative mode with a larger number of satellites, which can effectively utilize the observation resources of constellation members to meet users' more complex observation needs. At this stage, there is a problem of insufficient collaboration between constellations with different payloads, which leads to low resource utilization of the overall earth observation system and inability to meet real-time response requirements. Multi-task-oriented constellation time window collaborative planning fully calls the observation system of multiple payload satellite clusters, which is an important means to achieve efficient earth observation and meet user needs. Summary of the invention

[0003] The object of the present invention is to provide a multi-task oriented constellation time window collaborative planning and utilization system and method.

[0004] A multi-task oriented star cluster time window collaborative planning and utilization system, including a resource coordination module, a task management module, a task processing module, and a task planning module;

[0005] The resource coordination module has a resource information query interface and a capability calculation interface for searching, and provides observation and calculation services for different types of observation targets in subsequent use. The resource coordination module is used to integrate existing constellation resources, preliminarily divide constellation resources of different payloads based on the payload resources carried, and calculate the earth observation position area of ​​each constellation, and update the observation status of constellation resources in real time;

[0006] The task management module is used to receive management task information, pass simple tasks backward to the task processing module, perform preliminary decomposition of complex tasks, and then pass the decomposed multiple simple subtasks to the task processing module;

[0007] The task processing module receives the observation resource information and basic information of each star cluster from the resource coordination module and the task management module respectively, reasonably selects the required star cluster observation resources according to the specific requirements of the task, and transmits the processing results generated by the task processing module backward;

[0008] The task planning module receives the observation tasks transmitted by the task processing module, selects the satellite cluster observation resources equipped with suitable payloads, and generates a specific observation plan based on the earth observation location area of ​​the satellite cluster. At the same time, it feeds back the generated observation plan to the specific satellite cluster, and feeds back the observation constellation type and specific observation resource changes to the resource coordination module in real time.

[0009] A multi-task oriented constellation time window collaborative planning and utilization method comprises the following steps:

[0010] Step 1: The user proposes a demand for earth observation. The resource coordination module integrates the existing constellation resources, coordinates the earth observation capabilities of satellite clusters with different payloads based on the observation location area, observation payload, and observation priority, and prepares for subsequent calculation and allocation;

[0011] Step 2: The task management module loads the task set. If the task set has a priority, it is sorted according to the priority; otherwise, it is sorted according to the order of observation positions;

[0012] Step 3: The task management module determines whether the newly formed task set can be observed using a single star. If the conditions are met, the task planning module is used to plan the task directly. Otherwise, it is necessary to use multiple types of star cluster resources to observe the task set and execute step 4.

[0013] Step 4: The task management module performs a preliminary decomposition of the complex task, and then hands over the decomposed multiple simple subtasks to the task processing module;

[0014] Step 5: The task processing module first uses the optical satellite cluster to make judgment observations at a relatively close observation position to form an optical satellite cluster task set; determines whether the tasks in the remaining task set after being screened by the optical satellite cluster are in the coverage area of ​​the SAR satellite cluster to form a SAR satellite cluster task set; determines whether the tasks in the remaining task set after being screened by the optical satellite cluster and the SAR satellite cluster are in the coverage area of ​​the electronic reconnaissance satellite cluster to form an electronic reconnaissance satellite cluster task set; determines whether there is an unprocessed task set, and if so, it needs to be listed separately;

[0015] Step 6: The mission planning module performs mission planning for the optical satellite cluster mission set, the SAR satellite cluster mission set, and the electronic reconnaissance satellite cluster mission set until the mission planning is completed.

[0016] The beneficial effects of the present invention are:

[0017] The present invention solves the resource scheduling problem of multiple types of satellite clusters, and can achieve full collaborative utilization of observation resources among multiple satellite clusters for multiple earth observation resource platforms such as optical satellite clusters, SAR satellite clusters, and electronic reconnaissance satellite clusters. The present invention can achieve full collaborative utilization of observation resources among multiple satellite clusters according to the difficulty of the task and the situation of observation resources of multiple payload satellite clusters; the present invention can flexibly schedule relevant observation resources according to the task to achieve collaborative task planning requirements for multiple types of satellite clusters; the present invention uses a collaborative task planning method to allocate resources to multiple types of satellite clusters, and outputs the observation plan of each satellite cluster. At the same time, it has a real-time monitoring function, which can monitor the operating status of the entire observation resource platform and the execution of tasks in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the composition of a multi-task oriented star cluster time window collaborative planning and utilization system in the present invention.

[0019] Figure 2 The present invention is a flowchart of a multi-task oriented constellation time window collaborative planning and utilization method. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings.

[0021] The present invention belongs to the field of coordinated planning of mission time windows of an earth observation system of a satellite cluster with different payloads, and specifically relates to a method for coordinated planning of mission time windows of a large-scale heterogeneous satellite cluster composed of optical satellites, SAR satellites, electronic reconnaissance satellites, etc.

[0022] The purpose of the present invention is to solve the collaborative mission planning of satellite clusters with multiple payloads, realize efficient earth observation and meet user needs. A method is proposed to realize collaborative mission planning among optical satellite clusters, SAR satellite clusters and electronic reconnaissance satellite clusters. Based on the location of the satellite observation area, the star cluster resources for specific tasks are selected to realize the reasonable and effective allocation of earth observation resources, and the corresponding observation plan is formulated and generated.

[0023] A multi-task oriented star cluster time window collaborative planning and utilization system includes four modules, namely, resource coordination module 1, task management module 2, task processing module 3, and task planning module 4. Figure 1 shown.

[0024] The resource coordination module integrates the existing star cluster resources, preliminarily divides the star cluster resources of different payloads based on the payload resources carried, and calculates the earth observation position area of ​​each star cluster. It has a resource information query interface and a capability calculation interface for subsequent search and use, providing observation and calculation services for different types of observation targets in subsequent use, and updating the observation status of star cluster resources in real time. The task management module is responsible for receiving management task information, passing simple tasks backward, handing them over to the task processing module, preliminarily decomposing complex tasks, and then handing over the multiple simple subtasks obtained by decomposition to the task processing module. The task processing module receives the observation resource information and basic information of each star cluster from the resource coordination module and the task management module respectively, reasonably selects the required star cluster observation resources according to the specific requirements of the task, and passes the processing results generated by the task processing module backward. The task planning module receives the observation tasks passed by the task processing module, selects the satellite cluster observation resources carrying suitable payloads, and generates a specific observation plan based on the earth observation position area of ​​the star cluster. At the same time, it feeds back the generated observation plan to the specific satellite cluster, and feeds back its observation star cluster type and specific observation resource changes to the resource coordination module in real time.

[0025] The present invention solves the resource scheduling problem of multiple types of satellite clusters, and can realize the full collaborative use of observation resources among multiple satellite clusters for multiple earth observation resource platforms such as optical satellite clusters, SAR satellite clusters, and electronic reconnaissance satellite clusters. The advantages of the present invention are: 1) it can realize the full collaborative use of observation resources among multiple satellite clusters according to the difficulty of the task and the situation of observation resources of multiple payload satellite clusters; 2) it can flexibly schedule relevant observation resources according to the task to realize the collaborative task planning requirements of multiple types of satellite clusters; 3) it uses the collaborative task planning method to allocate resources to multiple types of satellite clusters, and outputs the observation plan of each satellite cluster; 4) it has a real-time monitoring function, and can monitor the operating status of the entire observation resource platform and the execution of the task in real time.

[0026] A method for collaborative planning and utilization of time windows of star clusters for multiple tasks. First, the user proposes the demand for earth observation. The resource coordination module integrates the existing star cluster resources and prepares for the calculation and allocation of subsequent modules. The specific requirements of the user test are input into the task management module. The task processing module receives the specific requirements of the task issued by the task management module and performs preliminary processing according to the difficulty, the order of the observation location area, and the order of the difficulty. The task planning module receives the allocation results sent by the task processing module and allocates tasks among the star clusters according to the corresponding load. The implementation process is as follows:

[0027] Step 1: Integrate existing constellation resources, coordinate the earth observation capabilities of satellite clusters with different payloads based on observation location area, observation payload, and observation priority, and prepare for subsequent calculation and allocation;

[0028] Step 2: Load the task set. If the task set has a priority, it will be sorted according to the priority. Otherwise, it will be sorted according to the order of observation positions.

[0029] Step 3: Determine whether the newly constructed task set can be observed using a single star. If the conditions are met, then perform task planning. Otherwise, use multiple star cluster resources to observe the task set.

[0030] Step 4: Preliminary decomposition of complex tasks. First, use the optical satellite cluster to make judgment observations at a relatively close observation position to form an optical satellite cluster task set.

[0031] Step 5: Check whether the tasks in the remaining task set after screening by the optical satellite cluster are within the coverage area of ​​the SAR satellite cluster; forming a SAR satellite cluster task set;

[0032] Step 6: Check whether the tasks in the remaining task set after screening by the optical satellite cluster and the SAR satellite cluster are within the coverage area of ​​the electronic reconnaissance satellite cluster; form an electronic reconnaissance satellite cluster task set;

[0033] Step 7: Determine whether there is an unprocessed task set. If so, list them separately.

[0034] Step 8: Carry out task planning for the task set formed by the optical satellite cluster in the fifth step; carry out task planning for the task set formed by the SAR satellite cluster in the sixth step; carry out task planning for the task set formed by the electronic reconnaissance satellite cluster in the seventh step, until the task planning is completed.

[0035] For tasks such as terrain identification, major natural disaster prevention and rescue, etc., optical satellite clusters can be used to continuously observe the target area when meteorological conditions permit; when meteorological conditions are poor, SAR satellite clusters can be used in a coordinated manner to make up for the shortcomings of using only optical satellite clusters; for radio signals, electronic reconnaissance satellite clusters can be coordinated to accurately grasp the target location and functional information, creating favorable conditions for observation and reconnaissance. On the basis of the above considerations of the coordinated application of multiple payload satellite clusters facing different mission types, in order to obtain target characteristic attributes and specific mission conditions, the coordinated application of multiple payload satellite clusters in the space-time dimension should also be considered.

[0036] The multi-task oriented star cluster time window collaborative planning and utilization method belongs to the field of task time window collaborative planning of earth observation systems of satellite clusters with different payloads. Specifically, a method for task time window collaborative planning of large-scale heterogeneous satellite clusters composed of optical satellites, SAR satellites, electronic reconnaissance satellites, etc. is designed; it mainly includes the following four modules: the resource coordination module integrates the existing star cluster resources, preliminarily divides the star cluster resources of different payloads based on the carried payload resources, and calculates the earth observation position area of ​​each star cluster, and has a resource information query interface and a capability calculation interface for subsequent search, providing observation and calculation services for different types of observation targets in subsequent use, and updating the observation status of star cluster resources in real time; the task management module is responsible for accepting management tasks The module receives information from the task processing module, passes simple tasks backwards, and hands them over to the task processing module, which performs preliminary decomposition of complex tasks, and then hands over multiple simple subtasks obtained by the decomposition to the task processing module; the task processing module receives the observation resource information and basic information of observation tasks of each star cluster from the resource coordination module and the task management module respectively, and reasonably selects the required star cluster observation resources according to the specific requirements of the task, and passes the processing results generated by the task processing module backwards; the task planning module receives the observation tasks passed by the task processing module, selects the satellite cluster observation resources carrying suitable payloads, and generates specific observation plans according to the earth observation position area of ​​the star cluster, and at the same time feeds back the generated observation plans to the specific satellite cluster, and feeds back its observation star cluster type and specific observation resource changes to the resource coordination module in real time.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-task oriented constellation time window collaborative planning and utilization method, characterized by: The multi-task-oriented star cluster time window collaborative planning and utilization system includes a resource coordination module, a task management module, a task processing module, and a task planning module, and includes the following steps: Step 1: The user proposes a demand for earth observation. The resource coordination module integrates the existing constellation resources, coordinates the earth observation capabilities of satellite clusters with different payloads based on the observation location area, observation payload, and observation priority, and prepares for subsequent calculation and allocation; Step 2: The task management module loads the task set. If the task set has a priority, it is sorted according to the priority; otherwise, it is sorted according to the order of observation positions; Step 3: The task management module determines whether the newly formed task set can be observed using a single star. If the conditions are met, the task planning module is used to plan the task directly. Otherwise, it is necessary to use multiple types of star cluster resources to observe the task set and execute step 4. Step 4: The task management module performs a preliminary decomposition of the complex task, and then hands over the decomposed multiple simple subtasks to the task processing module; Step 5: The task processing module first uses the optical satellite cluster to make judgment observations at a relatively close observation position to form an optical satellite cluster task set; determines whether the tasks in the remaining task set after being screened by the optical satellite cluster are in the coverage area of ​​the SAR satellite cluster to form a SAR satellite cluster task set; determines whether the tasks in the remaining task set after being screened by the optical satellite cluster and the SAR satellite cluster are in the coverage area of ​​the electronic reconnaissance satellite cluster to form an electronic reconnaissance satellite cluster task set; determines whether there is an unprocessed task set, and if so, it needs to be listed separately; Step 6: The mission planning module performs mission planning for the optical satellite cluster mission set, the SAR satellite cluster mission set, and the electronic reconnaissance satellite cluster mission set until the mission planning is completed.

2. The method for multi-task oriented constellation time window collaborative planning and utilization according to claim 1, characterized in that: The resource coordination module has a resource information query interface and a capability calculation interface for search, and provides observation and calculation services for different types of observation targets in subsequent use. The resource coordination module is used to integrate existing star cluster resources, preliminarily divide the star cluster resources of different payloads based on the payload resources carried, calculate the earth observation position area of ​​each star cluster, and update the observation status of the star cluster resources in real time.

3. The method for multi-task oriented constellation time window collaborative planning and utilization according to claim 1, characterized in that: The task management module is used to receive management task information, pass simple tasks backward to the task processing module, perform preliminary decomposition of complex tasks, and then pass the decomposed multiple simple subtasks to the task processing module.

4. The method for multi-task oriented constellation time window collaborative planning and utilization according to claim 1, characterized in that: The task processing module receives the observation resource information and basic information of each star cluster from the resource coordination module and the task management module respectively, reasonably selects the required star cluster observation resources according to the specific requirements of the task, and transmits the processing results generated by the task processing module backward.

5. The method for multi-task oriented constellation time window collaborative planning and utilization according to claim 1, characterized in that: The task planning module receives the observation tasks transmitted by the task processing module, selects the satellite cluster observation resources equipped with suitable payloads, and generates a specific observation plan based on the earth observation location area of ​​the satellite cluster. At the same time, it feeds back the generated observation plan to the specific satellite cluster, and feeds back the observation constellation type and specific observation resource changes to the resource coordination module in real time.

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