CN111091268B - Satellite task planning system and method - Google Patents
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Abstract
The invention provides a satellite mission planning system and a satellite mission planning method, which relate to the technical field of mission planning and comprise the following steps: the system comprises a visibility analysis module, a measurement and control resource analysis module and a task arrangement module; the visibility analysis module is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters; the measurement and control resource analysis module is used for calculating measurement and control parameters according to the acquired ground station information and satellite telemetry information; the task arrangement module is used for arranging the task to be executed according to the task parameters, the priority of the task to be executed and the measurement and control parameters under the condition that the preset resource constraint condition is met, so as to obtain task arrangement information. The invention can replace manual work to complete the arrangement of the task to be executed, lighten the burden of a system operator, greatly save human resources, obtain reasonable task arrangement information, improve the utilization rate of satellite resources and exert the maximum application efficiency of the system.
Description
Technical Field
The invention relates to the technical field of task planning, in particular to a satellite task planning system and method.
Background
With the rapid development of the aerospace field, satellites gradually move into various fields such as national defense, civil use and the like, and the tasks executed by the satellites are more and more. At present, satellite task planning is carried out on tasks to be executed mainly by a manual distribution method, and the method causes waste of human resources due to the fact that a large amount of manpower is used; in the calculation process of satellite task planning, the observation requirements of tasks to be executed are inconsistent, and the constraint conditions are more, so that the calculated amount is large, the system utilization rate is low, and the satellite resource waste is caused.
The current satellite task planning system is from the satellite itself, and is oriented to a group of fixed tasks to be executed, and only relates to the execution stage of the tasks to be executed, but does not cover the whole life cycle of task execution; and the constraint of measurement and control resources is not considered, and a certain distance is kept from actual use.
Disclosure of Invention
Accordingly, the present invention aims to provide a satellite task planning system and method, so as to solve the technical problems of human resource waste, large calculation amount, low system utilization rate and satellite resource waste caused by the satellite task planning by using a manual allocation method in the prior art.
In a first aspect, an embodiment of the present invention provides a satellite mission planning system, including: the system comprises a visibility analysis module, a measurement and control resource analysis module and a task arrangement module;
the visibility analysis module is connected with the task arrangement module and is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters;
the measurement and control resource analysis module is connected with the task arrangement module and is used for calculating measurement and control parameters according to the acquired ground station information and the satellite telemetry information;
the task arrangement module is used for arranging the task to be executed according to the task parameters, the priority of the task to be executed and the measurement and control parameters under the condition that the preset resource constraint condition is met, so as to obtain task arrangement information.
With reference to the first aspect, the embodiment of the present invention provides a first possible implementation manner of the first aspect, where the task orchestration module includes: the system comprises a task pool to be processed, an identification sub-module, a task allocation sub-module, a first judgment sub-module, a second judgment sub-module and a processed task pool;
the task pool to be processed is an input module of a task arrangement module and is used for storing the tasks to be processed;
the identification sub-module is used for identifying the priority of the task to be executed;
the task allocation submodule is used for allocating satellite resources for the tasks to be executed according to the sequence from high priority to low priority;
the first judging sub-module is used for judging whether the task to be executed with the highest priority finishes the allocation of satellite resources, and obtaining the task arrangement information of the task to be executed with the highest priority if the task to be executed with the highest priority finishes the allocation of satellite resources;
the second judging sub-module is configured to judge whether the satellite resources to be allocated exist under the condition that it is determined that the task to be executed with the highest priority has completed allocation of satellite resources, and allocate the remaining satellite resources for the task to be executed with the low priority under the condition that the satellite resources to be allocated exist, so as to obtain task arrangement information of the task to be executed with the low priority.
The processed task pool is an output module of the task arrangement module and is used for storing tasks to be executed which are distributed by the satellite resources or tasks to be executed which are distributed by the satellite resources.
With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, where the task allocation submodule is further configured to allocate satellite resources to tasks to be performed with equal priority by adopting a genetic algorithm.
With reference to the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, where the satellite resources include satellite and sensor resources, orbit resources, attitude resources, and measurement and control resources.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the fourth possible implementation manner includes an input database module;
the input database module is connected with the visibility analysis module and the measurement and control resource analysis module and is used for collecting and storing the task to be executed, the current satellite telemetry information and the ground station information.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the input database module is further configured to store target information, set the target information according to a setting instruction of a user, and generate the task to be executed.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the sixth possible implementation manner includes an output database module;
the output database module is connected with the task arrangement module and is used for maintaining the task arrangement information.
With reference to the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the satellite telemetry information includes one or more of the following: orbit information of the satellite, attitude information of the satellite, camera parameters of the satellite, lighting conditions, the number of sensors available on the satellite, and the satellite execution time period.
In a second aspect, an embodiment of the present invention further provides a satellite mission planning method, including:
acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters;
calculating measurement and control parameters according to the acquired ground station information and the satellite telemetry information;
and under the condition that the preset resource constraint condition is met, arranging the task to be executed according to the task parameter, the priority of the task to be executed and the measurement and control parameter to obtain task arrangement information.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the implementation manner includes:
identifying the priority of the task to be executed;
satellite resources are allocated to the tasks to be executed according to the order of the priority from high to low;
judging whether the task to be executed with the highest priority finishes the allocation of satellite resources, and obtaining task arrangement information of the task to be executed with the highest priority if yes;
and under the condition that the task to be executed with the highest priority is determined to finish the allocation of satellite resources, judging whether the satellite resources to be allocated exist, and under the condition that the satellite resources to be allocated exist, allocating the rest satellite resources for the task to be executed with the low priority to obtain the task arrangement information of the task to be executed with the low priority.
The embodiment of the invention has the following beneficial effects: the embodiment of the invention comprises the following steps: the system comprises a visibility analysis module, a measurement and control resource analysis module and a task arrangement module; the visibility analysis module is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters; the measurement and control resource analysis module is used for calculating measurement and control parameters according to the acquired ground station information and satellite telemetry information; the task arrangement module is used for arranging the task to be executed according to the task parameters, the priority of the task to be executed and the measurement and control parameters under the condition that the preset resource constraint condition is met, so as to obtain task arrangement information. The invention can replace manual work to complete the arrangement of the task to be executed, lighten the burden of a system operator, greatly save human resources, obtain reasonable task arrangement information, improve the utilization rate of satellite resources and exert the maximum application efficiency of the system.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a satellite mission planning system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a satellite mission planning method according to an embodiment of the present invention;
fig. 3 is a flowchart of step S103 in fig. 2.
Icon:
10-a visibility analysis module; 20-a measurement and control resource analysis module; 30-a task orchestration module; 31-a task pool to be processed; 32-an identification sub-module; 33-task assignment sub-module; 34-a first judgment sub-module; 35-a second judging sub-module; 36-a processed task pool; 40-an input database module; 50-output database module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
At present, a manual distribution method is used for satellite task planning, so that human resources are wasted, the calculated amount is large, the system utilization rate is low, and satellite resources are wasted. Based on the above, the satellite task planning system and the satellite task planning method provided by the embodiment of the invention can replace manual work to finish the task arrangement to be executed, reduce the burden of a system operator, greatly save human resources, arrange and obtain reasonable task arrangement information, improve the utilization rate of satellite resources and exert the maximum application efficiency of the system.
For the sake of understanding the present embodiment, a detailed description will be given of a satellite mission planning system disclosed in the present embodiment.
Embodiment one:
referring to fig. 1, the present invention provides a satellite mission planning system, comprising: a visibility analysis module 10, a measurement and control resource analysis module 20 and a task orchestration module 30;
the visibility analysis module 10 is connected with the task arrangement module 30 and is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters;
the measurement and control resource analysis module 20 is connected with the task arrangement module 30 and is used for calculating measurement and control parameters according to the acquired ground station information and satellite telemetry information;
the task arrangement module 30 is configured to arrange the task to be executed according to the task parameter, the priority of the task to be executed, and the measurement and control parameter, to obtain task arrangement information when the preset resource constraint condition is satisfied.
The task arrangement module adopts the measurement and control time interval as a task arrangement time interval, and before the N+1th measurement and control time arrives, the new task sequence received from the N-th measurement and control starting time to the N+1th measurement and control starting time and the task which is not processed until the N+1th measurement and control starting time are put into a task pool to be processed together, the task in the task pool to be processed is arranged, and the task which can be executed under the current constraint condition is put into the processed task pool.
In the embodiment of the invention, the task to be executed has periodicity, and the task to be executed is exemplified: the full lifecycle of a single task to be performed includes: posture rail adjustment, task execution and data downloading. The attitude and orbit adjustment can refer to orbit adjustment and attitude adjustment required by a satellite to complete a task to be executed, and the operation needs to be completed before the task is executed; task performance may refer to specific operations of the satellite during performance of a task to be performed, such as photo imaging; data download may refer to downloading images, gestures, orbits, etc. obtained by the satellite during task execution.
The satellite telemetry information includes one or more of the following: orbit information of the satellite, attitude information of the satellite, camera parameters of the satellite, lighting conditions, the number of sensors available on the satellite, and the satellite execution time period. The visibility analysis module 10 may calculate visibility between the satellite and the observation target based on the satellite telemetry information. The measurement and control parameters comprise: available measurement and control resources. The preset resource constraint conditions comprise: measurement and control resources, satellite resources, on-board storage space, visibility of satellites to observation targets, action switching time of satellites, available data downloading time and communication rate. Wherein, the task to be executed is influenced by the measurement and control resources. Satellite resources are a dynamically changing number that relates to the charge rate and power consumption of the satellite to perform tasks to be performed, etc. The space of the storage space on the satellite is affected by the stage in which the task to be performed is located, for example: when the satellite performs an imaging task, the on-board storage space is reduced; when the satellite performs a data download task, the on-board storage space increases. Visibility of the satellite to the observation target even if the observation target is located in the field of view, whether it is imaging the day or imaging the earth, the visibility of the satellite to the observation target needs to be satisfied, and if necessary, attitude adjustment needs to be performed on the satellite. The action switching time of the satellite includes, but is not limited to: the attitude homing time of the satellite and the adjustment in-place time of the satellite. In practical applications, the attitude adjustment capability of different satellites is different, for example: the satellite is not stationary in 1 minute with a few degrees of adjustability. The available data downloading time can refer to available data downloading time of the ground station, the available data downloading time of the ground station is limited by the visibility of the ground station to the satellite and the elevation angle of the ground station, and the available data downloading time of different ground stations is different. The communication rate determines the total amount of data that can be downloaded during the data download time available to the ground station.
The satellite mission planning system is oriented to a plurality of sensors of a plurality of satellites, wherein each satellite can carry a plurality of sensors of a plurality of kinds. The satellite task planning system performs task arrangement on a plurality of tasks to be executed in different stages proposed by multiple users, so that the tasks to be executed with high priority can be ensured to be executed preferentially, satellite resources are reasonably allocated, and the satellite resources are utilized to the maximum extent.
Further, the task orchestration module 30 includes: a task pool 31 to be processed, an identification sub-module 32, a task allocation sub-module 33, a first judgment sub-module 34, a second judgment sub-module 35 and a processed task pool 36;
the task pool 31 to be processed is an input module of a task arrangement module, and is used for storing the task to be processed;
an identification sub-module 32 for identifying a priority of a task to be performed;
a task allocation sub-module 33, configured to allocate satellite resources for tasks to be executed according to a sequence from high priority to low priority;
a first judging sub-module 34, configured to judge whether the task to be executed with the highest priority has completed the allocation of satellite resources, and if so, obtain task arrangement information of the task to be executed with the highest priority;
a second judging sub-module 35, configured to judge whether there are any more satellite resources to be allocated if it is determined that the task to be executed with the highest priority has completed allocation of satellite resources, and allocate the remaining satellite resources for the task to be executed with a low priority if so, to obtain task arrangement information of the task to be executed with a low priority;
the processed task pool 36 is an output module of the task orchestration module, and is used for storing tasks to be performed after completing the satellite resource allocation or tasks to be performed waiting for the satellite resource allocation.
In the embodiment of the present invention, the task pool 31 to be processed stores tasks to be executed with various priorities, where the tasks to be executed may include tasks to be executed on one satellite, or may include tasks to be executed on multiple satellites, where the tasks to be executed may be executed across satellite drift, or may be completed by multiple satellites through data fusion or data relay; the processed task pool 36 stores task orchestration information processed by the task orchestration module 30, the task orchestration information including tasks to be performed that have completed allocation of satellite resources or tasks to be performed that are in a waiting state because the resource satellite resources cannot be satisfied.
The task arrangement module adopts the measurement and control time interval as a task arrangement time interval, and before the N+1th measurement and control time arrives, the new task sequence received from the N-th measurement and control starting time to the N+1th measurement and control starting time and the task which is not processed until the N+1th measurement and control starting time are put into a task pool to be processed together, the task in the task pool to be processed is arranged, and the task which can be executed under the current constraint condition is put into the processed task pool.
Further, the task allocation submodule 33 is further configured to allocate satellite resources to tasks to be executed with the same priority by adopting a genetic algorithm.
Further, satellite resources include satellite and sensor resources, orbit resources, attitude resources, and measurement and control resources.
Further, an input database module 40;
the input database module 40 is connected with the visibility analysis module 10 and the measurement and control resource analysis module 20, and is used for collecting and storing tasks to be executed, current satellite telemetry information and ground station information.
In an embodiment of the present invention, the input database module 40 includes a task library, a target library, a satellite information library, and a ground station library. Wherein, provide selectable observation target for user in the target storehouse, the observation target includes: ground targets and heaven targets. The satellite information base provides satellite telemetry information to the user in real time. The ground station library comprises longitude and latitude, pitch angle and other information of the ground stations, and can provide available ground stations for users. The task store stores various tasks to be executed set by the user. The user can set the task to be executed according to the related information in the target library, and can set the task to be executed autonomously.
Further, the input database module 40 is further configured to store target information, and set the target information according to a setting instruction of a user, so as to generate a task to be executed.
Further, an output database module 50 is included;
an output database module 50, coupled to the task orchestration module 30, is used to maintain the task orchestration information.
In an embodiment of the present invention, the output database module 50 may maintain three tables, an imaging schedule, a task schedule, and a round-robin task table. Wherein the imaging schedule comprises: information about the execution time, solar altitude, solar incident angle, etc. of each executable task. The task schedule determines the execution status of each task according to the task phase. The circle task list determines tasks required to be executed by each circle of the satellite according to the circle number.
In the embodiment of the invention, the satellite refers to a software defined satellite, and the satellite has high flexibility, is more in number of facing users, and is more in number of supported tasks and wide in types. The satellite task planning system is oriented to a software-defined satellite, is connected with a satellite information base of the satellite, updates relevant information of the satellite in real time, and supports a plurality of users to flexibly and independently set a plurality of tasks and comprehensively cover the whole life cycle of the tasks.
Embodiment two:
referring to fig. 2, an embodiment of the present invention provides a satellite mission planning method, which may include the following steps:
step S101, acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters;
step S102, calculating measurement and control parameters according to the acquired ground station information and satellite telemetry information;
step S103, arranging the task to be executed according to the task parameters, the priority of the task to be executed and the measurement and control parameters under the condition that the preset resource constraint condition is met, and obtaining task arrangement information.
Further, step S103, referring to fig. 3, may include:
step S201, identifying the priority of the task to be executed;
step S202, satellite resources are allocated to tasks to be executed according to the order of the priority from high to low;
step S203, judging whether the task to be executed with the highest priority has completed the allocation of satellite resources, and obtaining task arrangement information of the task to be executed with the highest priority if yes;
step S204, judging whether the satellite resources to be allocated exist or not under the condition that the satellite resources are allocated to the task to be executed with the highest priority, and allocating the rest satellite resources to the task to be executed with the low priority under the condition that the satellite resources to be allocated exist or not, so as to obtain the task arrangement information of the task to be executed with the low priority.
The processing step of the task to be executed may include: the three stages of imaging, measurement and control and data transmission are respectively as follows:
step 1: for imaging tasks, the executable imaging tasks and the execution time periods of the imaging tasks are determined in the order of visibility-pose-platform. Firstly, calculating the visibility between a satellite and an observation target according to the orbit information, the attitude information, the camera parameters, the illumination conditions and the like of the satellite; then, on the basis of meeting the visibility, calculating the attitude adjustment angle of the satellite during imaging, and carrying out secondary screening according to the satellite capacity; and taking other requirements set by a user, such as imaging time period requirements when imaging the ground, stray light suppression when imaging the air, and the like into consideration, determining the imaging time period of a single imaging task, and screening the imaging tasks executable by the satellite according to the satellite telemetry information.
Step 2: determining available circle times and time of each ground station, and determining available measurement and control circle times and data transmission circle times; and determining the data which are scheduled to be downloaded by each data transmission round according to the principle of weight priority. And the uploading of related instructions such as a task execution instruction, a data organization instruction, a data downloading instruction and the like is completed, so that the uploading of the task execution instruction is completed before the task is executed, and the uploading of the data organization instruction and the data downloading instruction is executed after the task is executed.
Step 3: and calculating the available space of the platform when each task is executed according to the data volume and the data transmission time of each task to be executed, determining the executable task, and adjusting the imaging time of the task to be executed if necessary.
The embodiment of the invention comprises the following steps: the system comprises a visibility analysis module, a measurement and control resource analysis module and a task arrangement module; the visibility analysis module is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters; the measurement and control resource analysis module is used for calculating measurement and control parameters according to the acquired ground station information and satellite telemetry information; the task arrangement module is used for arranging the task to be executed according to the task parameters, the priority of the task to be executed and the measurement and control parameters under the condition that the preset resource constraint condition is met, so as to obtain task arrangement information. The task arrangement module adopts the measurement and control time interval as a task arrangement time interval, and before the N+1th measurement and control time arrives, the new task sequence received from the N-th measurement and control starting time to the N+1th measurement and control starting time and the task which is not processed until the N+1th measurement and control starting time are put into a task pool to be processed together, the task in the task pool to be processed is arranged, and the task which can be executed under the current constraint condition is put into the processed task pool.
The invention can replace manual work to complete the arrangement of the task to be executed, lighten the burden of a system operator, greatly save human resources, obtain reasonable task arrangement information, improve the utilization rate of satellite resources and exert the maximum application efficiency of the system.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The computer program product of the satellite mission planning method provided by the embodiment of the present invention includes a computer readable storage medium storing program codes, where the instructions included in the program codes may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment and will not be described herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A satellite mission planning system, comprising: the system comprises a visibility analysis module, a measurement and control resource analysis module, a task arrangement module and an output database module;
the visibility analysis module is connected with the task arrangement module and is used for acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters; wherein the satellite telemetry information includes one or more of: orbit information of the satellite, attitude information of the satellite, camera parameters of the satellite, illumination conditions, the number of sensors available on the satellite, and satellite execution time period;
the measurement and control resource analysis module is connected with the task arrangement module and is used for calculating measurement and control parameters according to the acquired ground station information and the satellite telemetry information; the task arrangement module is configured to arrange the task to be executed according to the task parameter, the priority of the task to be executed, and the measurement and control parameter under the condition that a preset resource constraint condition is satisfied, so as to obtain task arrangement information, where the resource constraint condition includes: measurement and control resources, satellite resources, on-board storage space, visibility of satellites to observation targets, action switching time of satellites, available data downloading time and communication rate;
the output database module is connected with the task scheduling module and is used for maintaining an imaging time table, a task schedule table and a circle task table; wherein the imaging schedule comprises: execution time, solar altitude, solar incident angle information for each executable task; the task schedule determines the execution state of each task according to the task stage; the circle task list determines tasks required to be executed by each circle of the satellite according to the circle;
wherein the task orchestration module comprises: the system comprises a task pool to be processed, an identification sub-module, a task allocation sub-module, a first judgment sub-module, a second judgment sub-module and a processed task pool;
the task pool to be processed is an input module of a task arrangement module and is used for storing the tasks to be processed;
the identification sub-module is used for identifying the priority of the task to be executed;
the task allocation submodule is used for allocating satellite resources for the tasks to be executed according to the sequence from high priority to low priority;
the first judging sub-module is used for judging whether the task to be executed with the highest priority finishes the allocation of satellite resources, and obtaining the task arrangement information of the task to be executed with the highest priority if the task to be executed with the highest priority finishes the allocation of satellite resources;
the second judging sub-module is configured to judge whether the satellite resources to be allocated exist under the condition that it is determined that the task to be executed with the highest priority has completed allocation of satellite resources, and allocate the remaining satellite resources for the task to be executed with the low priority under the condition that the satellite resources to be allocated exist, so as to obtain task arrangement information of the task to be executed with the low priority;
the processed task pool is an output module of the task arrangement module and is used for storing tasks to be executed which are distributed by the satellite resources or tasks to be executed which are distributed by the satellite resources.
2. The system of claim 1, wherein the task allocation submodule is further configured to allocate satellite resources to tasks to be performed of equal priority using a genetic algorithm.
3. The system of claim 2, wherein the satellite resources comprise satellite and sensor resources, orbit resources, attitude resources, and measurement and control resources.
4. The system of claim 1, comprising an input database module;
the input database module is connected with the visibility analysis module and the measurement and control resource analysis module and is used for collecting and storing the task to be executed, the current satellite telemetry information and the ground station information.
5. The system of claim 4, wherein the input database module is further configured to store target information, and set the target information according to a setting instruction of a user, to generate the task to be executed.
6. A satellite mission planning method, comprising:
acquiring a task to be executed and current satellite telemetry information, and adjusting the satellite telemetry information according to the resource requirement of the task to be executed to obtain task parameters; wherein the satellite telemetry information includes one or more of: orbit information of the satellite, attitude information of the satellite, camera parameters of the satellite, illumination conditions, the number of sensors available on the satellite, and satellite execution time period; calculating measurement and control parameters according to the acquired ground station information and the satellite telemetry information;
under the condition that a preset resource constraint condition is met, arranging the task to be executed according to the task parameter, the priority of the task to be executed and the measurement and control parameter to obtain task arrangement information, wherein the resource constraint condition comprises: measurement and control resources, satellite resources, on-board storage space, visibility of satellites to observation targets, action switching time of satellites, available data downloading time and communication rate;
under the condition that the preset resource constraint condition is met, arranging the task to be executed according to the task parameter, the priority of the task to be executed and the measurement and control parameter to obtain task arrangement information, wherein the task arrangement information comprises:
identifying the priority of the task to be executed;
satellite resources are allocated to the tasks to be executed according to the order of the priority from high to low;
judging whether the task to be executed with the highest priority finishes the allocation of satellite resources, and obtaining task arrangement information of the task to be executed with the highest priority if yes;
judging whether the satellite resources to be allocated exist under the condition that the tasks to be executed with the highest priority are allocated to satellite resources, and allocating the rest satellite resources for the tasks to be executed with low priority under the condition that the tasks to be executed with the highest priority are allocated to satellite resources to obtain task arrangement information of the tasks to be executed with low priority;
the satellite mission planning method further comprises the following steps:
maintaining an imaging schedule, a task schedule and a circle task table; wherein the imaging schedule comprises: execution time, solar altitude, solar incident angle information for each executable task; the task schedule determines the execution state of each task according to the task stage; the circle task list determines tasks required to be executed by each circle of the satellite according to the circle.
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