CN118944745A - A control method and terminal for a phased array satellite communication-in-motion terminal - Google Patents
A control method and terminal for a phased array satellite communication-in-motion terminal Download PDFInfo
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- H—ELECTRICITY
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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Abstract
The invention relates to the technical field of communication, and discloses a control method and a terminal of a phased array satellite communication-in-motion terminal, which are used for predicting the predicted arrival time of a moving target at each sampling point in a moving route according to the movement influence parameter of the moving route by extracting the moving route in a moving task, and then based on a satellite communication quality distribution diagram and the predicted arrival time of each sampling point, and generating a communication satellite signal switching strategy of the mobile target on the mobile route, and finally sending the communication satellite signal switching strategy to each independent communication mobile sub-target of the mobile target, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute communication actions. Therefore, the overall energy consumption of communication and the signal interference between a plurality of independent communication mobile sub-targets in the mobile targets are reduced, the instant and even seamless switching of satellite communication signals is realized, and the communication quality and the communication continuity are improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a control method of a phased array satellite communication-in-motion terminal and the terminal.
Background
The phased array satellite communication-in-motion terminal is a mobile terminal device for realizing satellite communication by utilizing a phased array technology. The system can keep stable communication connection with the satellite in a moving state, and has the characteristics of high reliability, high data transmission rate, flexible beam pointing control and the like.
However, phased array satellite communication-in-motion terminals currently loaded on high-speed moving vehicles (e.g., trains, automobiles, boats) have the following drawbacks when faced with satellite communication needs during long-range transportation: (1) The transport means usually has a plurality of independent communication mobile sub-targets (such as different carriages in a train, automobiles at different positions in an automobile queue, ships at different positions in a ship group), each independent communication mobile sub-target has a communication requirement, and if each independent communication mobile sub-target utilizes a phased array satellite communication terminal in motion to establish satellite communication, the problems of high energy consumption, mutual interference of signals and the like exist; (2) Because the high-speed moving transport means has high moving speed and long transport distance, single satellite signal communication cannot ensure the communication quality in the scene, and if the satellite communication signal switching technology is adopted, the processes of phased array antenna beam adjustment, satellite signal searching, locking and the like are needed, because the beam switching needs a certain time to be adjusted, and the process is different from the linear adjustment of the phased array antenna beam direction based on the gesture of the transport means, the characteristics of frequent mutation, large beam direction adjustment angle and the like may exist in the switching between different satellite communication signals, so that short and frequent communication interruption may occur in the switching process between satellite communication signals, and the continuity of communication is affected.
Therefore, how to reduce the overall energy consumption of satellite communication by multiple independent communication mobile sub-targets in the mobile targets, avoid signal mutual interference, and improve the communication quality and communication continuity of the phased array satellite communication-in-motion terminal in the scene of loading in a high-speed mobile transport means is a technical problem to be solved.
Disclosure of Invention
The invention provides a control method of a phased array satellite communication-in-motion terminal and the terminal, and aims to solve at least one technical problem.
In order to achieve the above purpose, the present invention provides a control method for a phased array satellite communication-in-motion terminal, comprising the following steps:
acquiring a moving task of a moving target, and extracting a moving route in the moving task; the mobile targets comprise a plurality of independent communication mobile sub-targets, and each independent communication mobile sub-target is loaded with a phased array satellite communication-in-motion terminal and a networking communication terminal;
inquiring a movement influence parameter of a movement route when a movement task starts, and predicting the predicted arrival time of a moving target at each sampling point in the movement route according to the movement influence parameter;
Accessing a satellite communication quality database to generate satellite communication quality distribution diagrams of a plurality of satellite signals meeting the communication requirements of the mobile target;
Determining an optimal satellite communication signal of each sampling point of a moving target in a moving route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, and generating a communication satellite signal switching strategy of the moving target in the moving route;
And sending the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute communication actions according to the communication satellite signal switching strategy.
Optionally, the step of querying the movement influence parameter of the movement route specifically includes:
Invoking an environment influence parameter library of the moving route, and extracting an environment influence parameter set of the moving route from the environment influence parameter library;
and generating the environment influence parameters corresponding to each route sampling point in the moving route at each time stamp based on the environment influence parameter set.
Optionally, the moving object comprises a train, an automobile or a ship; the environmental impact parameters include:
a first environmental impact parameter that affects the speed of movement of the train, a second environmental impact parameter that affects the speed of movement of the car, or a third environmental parameter that affects the speed of movement of the vessel;
The first environmental influence parameters comprise climate parameters, geographic parameters, track abrasion parameters and loading parameters, the second environmental influence parameters comprise geographic parameters, road parameters and loading parameters, and the third environmental influence parameters comprise wind power parameters, ocean current parameters and loading parameters.
Optionally, according to the movement influencing parameter, predicting a predicted arrival time of the moving target at each sampling point in the moving route specifically includes:
acquiring historical movement data of a moving target; wherein the historical movement data includes a historical environmental impact parameter and a historical movement speed having the same time axis;
Based on the historical environmental impact parameters and the historical moving speed, constructing a time sequence training sample and inputting a cyclic neural network model for training to obtain a moving target moving speed prediction model after training;
constructing a prediction sample by utilizing environmental influence parameters, inputting a movement speed prediction model of the movement target after training, and predicting the predicted movement speed of the movement target at each sampling point in the movement route;
and determining the predicted arrival time of the moving target at each sampling point in the moving route according to the predicted moving speed.
Optionally, accessing a satellite communication quality database to generate satellite communication quality distribution diagrams of a plurality of satellite signals meeting the mobile target communication requirement, which specifically includes:
Accessing a satellite communication quality database; the satellite communication quality database stores a plurality of coverage areas of satellite signals meeting the communication requirements of the mobile target, wherein the coverage areas comprise a plurality of coverage area sampling points with corresponding signal intensities;
Acquiring weather data distribution information and geographic data distribution information of the coverage area, and extracting satellite communication quality influence parameters corresponding to each coverage area sampling point in the weather data distribution information and the geographic data distribution information;
Based on satellite communication quality influence parameters corresponding to each coverage sampling point, according to a preset attenuation conversion relation obtained by testing, the theoretical signal intensity of each coverage sampling point is obtained, and a satellite communication quality distribution map corresponding to each satellite signal at each time stamp is generated.
Optionally, based on the satellite communication quality distribution diagram and the predicted arrival time of each sampling point in the moving route, determining an optimal satellite communication signal of the moving target at each sampling point in the moving route, and generating a communication satellite signal switching strategy step of the moving target in the moving route, which specifically includes:
According to the predicted arrival time of the moving target at each sampling point in the moving route, matching the optimal satellite communication signal with the highest theoretical signal strength at each sampling point with the satellite communication quality distribution map of each satellite signal of the timestamp corresponding to the predicted arrival time;
Generating an optimal satellite communication signal selection time axis when a moving target moves on the moving route based on the optimal satellite communication signal with the highest actual signal intensity of each sampling point; the optimal satellite communication signal selection time axis comprises a plurality of satellite communication signal selection duration time periods distributed in time sequence;
The communication task of each satellite communication signal selection duration time in the optimal satellite communication signal selection time axis is discontinuously distributed to a plurality of independent communication mobile sub-targets in the mobile targets, and a communication satellite signal switching execution table of the mobile route is generated;
generating a signal beam control instruction set according to a first signal beam direction of each independent communication mobile sub-target when executing a previous communication task of a satellite communication signal selection duration and a second signal beam direction which is required to be regulated by a next communication task and corresponds to an optimal satellite communication signal;
and generating a communication satellite signal switching strategy of the moving target on the moving route based on the signal beam control instruction set and the communication satellite signal switching execution table.
Optionally, the step of discontinuously distributing the communication task of each satellite communication signal selection duration in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile targets to generate the communication satellite signal switching execution table of the mobile route specifically includes:
the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis are distributed to a plurality of independent communication mobile sub-targets in the mobile target under the condition that the independent communication mobile sub-targets to which the front and rear communication tasks are distributed are different as a first condition and the communication task duration variance of all the independent communication mobile sub-targets in the mobile target is minimum after each communication task is executed by the independent communication mobile sub-target;
and generating a communication satellite signal switching execution table of the moving route according to the independent communication mobile sub-targets for executing the front communication task and the rear communication task.
Optionally, the communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute the communication action step according to the communication satellite signal switching strategy, and specifically includes:
transmitting a communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile targets;
Driving an independent communication mobile sub-target to execute communication satellite signal switching actions aiming at different satellite communication signals between two adjacent communication tasks according to a communication satellite signal switching strategy in the communication satellite signal switching execution table;
the communication satellite signal switching action comprises the steps of establishing connection between a phased array satellite communication-in-motion terminal of an independent communication mobile sub-target of a later communication task and a communication satellite, and disconnecting the phased array satellite communication-in-motion terminal of the independent communication mobile sub-target of the former communication task from the communication satellite;
a phased array satellite communication-in-motion terminal of an independent communication mobile sub-target which is driven to establish connection with a communication satellite communicates data of other independent communication mobile sub-targets acquired through a networking communication terminal with the communication satellite;
Driving an independent communication mobile sub-target to execute signal beam advanced adjustment action for a next communication task after the current communication task is completed according to a signal beam control instruction set in the communication satellite signal switching execution table; wherein the signal beam adjustment action includes adjusting a first signal beam direction of a current communication task to a second signal beam direction.
Optionally, the method further comprises:
Detecting the actual signal intensity in the satellite communication signal selection duration time when each communication task is executed, and judging whether the actual signal intensity and the theoretical signal intensity meet the updating condition or not;
wherein the updating condition is configured to enable a time period proportion of a difference value between the actual signal intensity and the theoretical signal intensity in a continuous preset time period to exceed a preset value to reach a target proportion;
If yes, re-executing the inquiry of the movement influence parameters of the movement route, and predicting the predicted arrival time of the moving target at each sampling point in the movement route according to the movement influence parameters; and accessing a satellite communication quality database to generate satellite communication quality distribution diagrams of a plurality of satellite signals meeting the mobile target communication requirement, and obtaining the updated predicted arrival time of each sampling point and the satellite communication quality distribution diagrams of the plurality of satellite signals.
In addition, in order to achieve the above object, the present invention further provides a control terminal of a phased array satellite communication-in-motion terminal, including:
The mobile terminal comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring a mobile task of a mobile target and extracting a mobile route in the mobile task; the mobile targets comprise a plurality of independent communication mobile sub-targets, and each independent communication mobile sub-target is loaded with a phased array satellite communication-in-motion terminal and a networking communication terminal;
the inquiry module is used for inquiring movement influence parameters of a movement route when a movement task starts, and predicting the predicted arrival time of a moving target at each sampling point in the movement route according to the movement influence parameters;
the access module is used for accessing the satellite communication quality database and generating satellite communication quality distribution diagrams of a plurality of satellite signals meeting the communication requirements of the mobile target;
The generation module is used for determining the optimal satellite communication signal of each sampling point of the moving target in the moving route based on the satellite communication quality distribution diagram and the predicted arrival time of each sampling point in the moving route, and generating a communication satellite signal switching strategy of the moving target in the moving route;
And the control module is used for sending the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute communication actions according to the communication satellite signal switching strategy.
The invention has the beneficial effects that: the method comprises the steps of providing a communication task of each satellite communication signal selection duration to a corresponding independent communication mobile sub-target in a mobile target to form a communication satellite signal switching strategy by considering communication quality change in a mobile route and predicted arrival time of the mobile target at each sampling point, controlling each independent communication mobile sub-target to execute communication satellite signal switching action by using a communication satellite signal switching execution table in the communication satellite signal switching strategy, driving only one target independent communication mobile sub-target to communicate with a satellite through the phased array satellite communication terminal during execution of each communication task, carrying out networking communication between the other independent communication mobile sub-targets and the target independent communication mobile sub-target through the networking communication terminal, realizing satellite communication through the phased array satellite communication terminal of the target independent communication mobile sub-target, and reducing overall energy consumption of communication and signal interference among a plurality of independent communication mobile sub-targets in the mobile target; the signal beam control instruction set in the communication satellite signal switching strategy is utilized to control each independent communication mobile sub-target to adjust the beam direction to the next allocated communication task in advance after the previous allocated communication task is executed, and the beam direction is adjusted in advance through discontinuous allocation and sequential execution of the communication tasks, so that the instantaneous and even seamless switching of satellite communication signals can be realized, and the communication quality and communication continuity of the phased array satellite communication-in-motion terminal in a scene loaded on a high-speed mobile transport tool are improved.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of a method for controlling a communication-in-motion terminal of a phased array satellite according to the present invention;
Fig. 2 is a schematic structural diagram of an embodiment of a control terminal of a phased array satellite communication-in-motion terminal according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention provides a control method of a phased array satellite communication-in-motion terminal, and referring to fig. 1, fig. 1 is a flow diagram of an embodiment of the control method of the phased array satellite communication-in-motion terminal.
In this embodiment, the method for controlling the communication-in-motion terminal of the phased array satellite includes the following steps:
S100: acquiring a moving task of a moving target, and extracting a moving route in the moving task; the mobile targets comprise a plurality of independent communication mobile sub-targets, and each independent communication mobile sub-target is loaded with a phased array satellite communication-in-motion terminal and a networking communication terminal;
S200: inquiring a movement influence parameter of a movement route when a movement task starts, and predicting the predicted arrival time of a moving target at each sampling point in the movement route according to the movement influence parameter;
S300: accessing a satellite communication quality database to generate satellite communication quality distribution diagrams of a plurality of satellite signals meeting the communication requirements of the mobile target;
S400: determining an optimal satellite communication signal of each sampling point of a moving target in a moving route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, and generating a communication satellite signal switching strategy of the moving target in the moving route;
S500: and sending the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute communication actions according to the communication satellite signal switching strategy.
It should be noted that, at present, the satellite communication requirements during long-distance transportation of the phased array satellite communication terminal loaded on a high-speed moving transport means (such as a train, an automobile and a ship) are faced with the following drawbacks: (1) The transport means usually has a plurality of independent communication mobile sub-targets (such as different carriages in a train, automobiles at different positions in an automobile queue, ships at different positions in a ship group), each independent communication mobile sub-target has a communication requirement, and if each independent communication mobile sub-target utilizes a phased array satellite communication terminal in motion to establish satellite communication, the problems of high energy consumption, mutual interference of signals and the like exist; (2) Because the high-speed moving transport means has high moving speed and long transport distance, single satellite signal communication cannot ensure the communication quality in the scene, and if the satellite communication signal switching technology is adopted, the processes of phased array antenna beam adjustment, satellite signal searching, locking and the like are needed, because the beam switching needs a certain time to be adjusted, and the process is different from the linear adjustment of the phased array antenna beam direction based on the gesture of the transport means, the characteristics of frequent mutation, large beam direction adjustment angle and the like may exist in the switching between different satellite communication signals, so that short and frequent communication interruption may occur in the switching process between satellite communication signals, and the continuity of communication is affected.
In order to solve the above-mentioned problems, in this embodiment, a moving route in a moving task is extracted, a predicted arrival time of a moving target at each sampling point in the moving route is predicted according to a movement influence parameter of the moving route, a communication satellite signal switching strategy of the moving target at the moving route is generated based on a communication quality distribution diagram of a satellite and the predicted arrival time of each sampling point, and finally the communication satellite signal switching strategy is sent to each independent communication moving sub-target of the moving target, so that each independent communication moving sub-target controls a phased array satellite communication-in-motion terminal and a networking communication terminal to execute a communication action.
In the invention, the communication quality change in a moving route and the predicted arrival time of a moving target at each sampling point are considered, the communication task of each satellite communication signal with a selected duration period is distributed to corresponding independent communication moving sub-targets in the moving targets to form a communication satellite signal switching strategy, the communication satellite signal switching execution table in the communication satellite signal switching strategy is utilized to control each independent communication moving sub-target to execute the communication satellite signal switching action, only one target independent communication moving sub-target is driven to communicate with a satellite through a phased array satellite communication terminal during the execution of each communication task, other independent communication moving sub-targets are communicated with the target independent communication moving sub-target through a networking communication terminal to realize satellite communication through the phased array satellite communication terminal of the target independent communication moving sub-target, and the integral energy consumption and the signal interference between the communication of a plurality of independent communication moving sub-targets in the moving targets are reduced; the signal beam control instruction set in the communication satellite signal switching strategy is utilized to control each independent communication mobile sub-target to adjust the beam direction to the next allocated communication task in advance after the previous allocated communication task is executed, and the beam direction is adjusted in advance through discontinuous allocation and sequential execution of the communication tasks, so that the instantaneous and even seamless switching of satellite communication signals can be realized, and the communication quality and communication continuity of the phased array satellite communication-in-motion terminal in a scene loaded on a high-speed mobile transport tool are improved.
In a preferred embodiment, the step of querying the movement influence parameter of the movement route specifically includes:
s210: invoking an environment influence parameter library of the moving route, and extracting an environment influence parameter set of the moving route from the environment influence parameter library;
S220: and generating the environment influence parameters corresponding to each route sampling point in the moving route at each time stamp based on the environment influence parameter set.
Still further, the moving object includes a train, an automobile, or a ship; the environmental impact parameters include: a first environmental impact parameter that affects the speed of movement of the train, a second environmental impact parameter that affects the speed of movement of the car, or a third environmental parameter that affects the speed of movement of the vessel; the first environmental influence parameters comprise climate parameters, geographic parameters, track abrasion parameters and loading parameters, the second environmental influence parameters comprise geographic parameters, road parameters and loading parameters, and the third environmental influence parameters comprise wind power parameters, ocean current parameters and loading parameters.
On the basis, according to the movement influencing parameter, predicting the predicted arrival time of the moving target at each sampling point in the moving route, specifically including:
S230: acquiring historical movement data of a moving target; wherein the historical movement data includes a historical environmental impact parameter and a historical movement speed having the same time axis;
S240: based on the historical environmental impact parameters and the historical moving speed, constructing a time sequence training sample and inputting a cyclic neural network model for training to obtain a moving target moving speed prediction model after training;
s250: constructing a prediction sample by utilizing environmental influence parameters, inputting a movement speed prediction model of the movement target after training, and predicting the predicted movement speed of the movement target at each sampling point in the movement route;
s260: and determining the predicted arrival time of the moving target at each sampling point in the moving route according to the predicted moving speed.
In this embodiment, an environmental impact parameter library of a moving route is called to determine an environmental impact parameter corresponding to each time stamp of each route sampling point of a moving object moving to the moving route, a moving object moving speed prediction model obtained by training historical moving data is used to predict a predicted moving speed of the moving object at each sampling point of the moving route, and finally a predicted arrival time of the object moving to each sampling point of the moving route is calculated according to the predicted moving speed. It should be noted that, considering that the moving speed of the moving object (such as a train, an automobile or a ship) is not only related to the environmental impact parameter of each route sampling point, but also related to the environmental impact parameters before and after the route sampling point, the embodiment adopts the cyclic neural network model to learn the rule of the impact of the environmental impact parameters before and after each route sampling point on the current route sampling point speed in the historical moving process by constructing the time series training sample, so as to further predict the moving speed of the moving object in the current moving route, thereby having higher prediction accuracy and environmental adaptability.
In a preferred embodiment, the step of accessing a satellite communication quality database to generate satellite communication quality profiles of a plurality of satellite signals satisfying a mobile object communication requirement specifically includes:
S310: accessing a satellite communication quality database; the satellite communication quality database stores a plurality of coverage areas of satellite signals meeting the communication requirements of the mobile target, wherein the coverage areas comprise a plurality of coverage area sampling points with corresponding signal intensities;
s320: acquiring weather data distribution information and geographic data distribution information of the coverage area, and extracting satellite communication quality influence parameters corresponding to each coverage area sampling point in the weather data distribution information and the geographic data distribution information;
S330: based on satellite communication quality influence parameters corresponding to each coverage sampling point, according to a preset attenuation conversion relation obtained by testing, the theoretical signal intensity of each coverage sampling point is obtained, and a satellite communication quality distribution map corresponding to each satellite signal at each time stamp is generated.
In this embodiment, the satellite communication quality distribution map corresponding to each time stamp is generated by considering the influence of different coverage areas of different satellite communication signals, different signal intensities at different positions within the coverage areas, and environmental factors (namely, weather data including heavy rain, heavy snow, sand storm, etc., which can attenuate, scatter and absorb satellite signals, and geographic data including mountain areas and dense building areas, which can shield satellite signals) on the signal intensities at different positions within the coverage areas.
In a preferred embodiment, based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, determining an optimal satellite communication signal of the moving target at each sampling point in the moving route, and generating a communication satellite signal switching strategy step of the moving target in the moving route specifically includes:
S410: according to the predicted arrival time of the moving target at each sampling point in the moving route, matching the optimal satellite communication signal with the highest theoretical signal strength at each sampling point with the satellite communication quality distribution map of each satellite signal of the timestamp corresponding to the predicted arrival time;
S420: generating an optimal satellite communication signal selection time axis when a moving target moves on the moving route based on the optimal satellite communication signal with the highest actual signal intensity of each sampling point; the optimal satellite communication signal selection time axis comprises a plurality of satellite communication signal selection duration time periods distributed in time sequence;
S430: the communication task of each satellite communication signal selection duration time in the optimal satellite communication signal selection time axis is discontinuously distributed to a plurality of independent communication mobile sub-targets in the mobile targets, and a communication satellite signal switching execution table of the mobile route is generated;
S440: generating a signal beam control instruction set according to a first signal beam direction of each independent communication mobile sub-target when executing a previous communication task of a satellite communication signal selection duration and a second signal beam direction which is required to be regulated by a next communication task and corresponds to an optimal satellite communication signal;
S450: and generating a communication satellite signal switching strategy of the moving target on the moving route based on the signal beam control instruction set and the communication satellite signal switching execution table.
Further, the step of allocating the communication task of each satellite communication signal selection duration in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile targets discontinuously to generate a communication satellite signal switching execution table of the mobile route specifically includes:
s431: the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis are distributed to a plurality of independent communication mobile sub-targets in the mobile target under the condition that the independent communication mobile sub-targets to which the front and rear communication tasks are distributed are different as a first condition and the communication task duration variance of all the independent communication mobile sub-targets in the mobile target is minimum after each communication task is executed by the independent communication mobile sub-target;
s432: and generating a communication satellite signal switching execution table of the moving route according to the independent communication mobile sub-targets for executing the front communication task and the rear communication task.
On the basis, the communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to execute the communication action step according to the communication satellite signal switching strategy, and the method specifically comprises the following steps:
s510: transmitting a communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile targets;
S520: driving an independent communication mobile sub-target to execute communication satellite signal switching actions aiming at different satellite communication signals between two adjacent communication tasks according to a communication satellite signal switching strategy in the communication satellite signal switching execution table;
the communication satellite signal switching action comprises the steps of establishing connection between a phased array satellite communication-in-motion terminal of an independent communication mobile sub-target of a later communication task and a communication satellite, and disconnecting the phased array satellite communication-in-motion terminal of the independent communication mobile sub-target of the former communication task from the communication satellite;
S530: a phased array satellite communication-in-motion terminal of an independent communication mobile sub-target which is driven to establish connection with a communication satellite communicates data of other independent communication mobile sub-targets acquired through a networking communication terminal with the communication satellite;
S540: driving an independent communication mobile sub-target to execute signal beam advanced adjustment action for a next communication task after the current communication task is completed according to a signal beam control instruction set in the communication satellite signal switching execution table; wherein the signal beam adjustment action includes adjusting a first signal beam direction of a current communication task to a second signal beam direction.
In this embodiment, by considering the communication quality change in the moving route and the predicted arrival time of the moving target at each sampling point, the communication task of each satellite communication signal with a selected duration is allocated to the corresponding independent communication moving sub-target in the moving target to form a communication satellite signal switching strategy, the communication satellite signal switching execution table in the communication satellite signal switching strategy is used to control each independent communication moving sub-target to execute the communication satellite signal switching action, so that only one target independent communication moving sub-target is driven to communicate with a satellite through the phased array satellite communication terminal during the execution of each communication task, and the rest independent communication moving sub-targets communicate with the target independent communication moving sub-target in a networking manner through the phased array satellite communication terminal of the target independent communication moving sub-target to realize satellite communication, thereby reducing the overall energy consumption of the communication of a plurality of independent communication moving sub-targets in the moving target and the signal interference between each other. Meanwhile, a signal beam control instruction set in a communication satellite signal switching strategy is utilized to control each independent communication mobile sub-target to adjust the beam pointing direction to the next allocated communication task in advance after the previous allocated communication task is executed, and the beam pointing direction is adjusted in advance through discontinuous allocation and sequential execution of the communication tasks, so that instantaneous and even seamless switching of satellite communication signals can be realized, and the communication quality and communication continuity of the phased array satellite communication-in-motion terminal in a scene loaded on a high-speed mobile transport tool are improved.
In a preferred embodiment, the method further comprises:
S610: detecting the actual signal intensity in the satellite communication signal selection duration time when each communication task is executed, and judging whether the actual signal intensity and the theoretical signal intensity meet the updating condition or not;
wherein the updating condition is configured to enable a time period proportion of a difference value between the actual signal intensity and the theoretical signal intensity in a continuous preset time period to exceed a preset value to reach a target proportion;
S620: if yes, re-executing the inquiry of the movement influence parameters of the movement route, and predicting the predicted arrival time of the moving target at each sampling point in the movement route according to the movement influence parameters; and accessing a satellite communication quality database to generate satellite communication quality distribution diagrams of a plurality of satellite signals meeting the mobile target communication requirement, and obtaining the updated predicted arrival time of each sampling point and the satellite communication quality distribution diagrams of the plurality of satellite signals.
In consideration of the variability of satellite communication quality distribution diagrams of different satellite communication signals, the deviation of the actual moving speed of a moving target from a predicted one, and the like, the embodiment re-executes the prediction of the arrival time of the moving target at each sampling point and the generation of the satellite communication quality distribution diagram when the update condition is satisfied by detecting the actual signal intensity in the satellite communication signal selection duration period when each communication task is executed in real time, and re-executes the communication satellite signal switching strategy generation and communication actions of the subsequent moving route on the basis of the prediction. Therefore, the adaptability, the communication stability and the continuity of the invention under different environment change conditions are improved.
The embodiment of the invention provides a control terminal of a phased array satellite communication-in-motion terminal, and referring to fig. 2, fig. 2 is a schematic structural diagram of the control terminal embodiment of the phased array satellite communication-in-motion terminal.
In this embodiment, the control terminal of the phased array satellite communication-in-motion terminal includes:
The acquisition module 10 is used for acquiring a moving task of a moving target and extracting a moving route in the moving task; the mobile targets comprise a plurality of independent communication mobile sub-targets, and each independent communication mobile sub-target is loaded with a phased array satellite communication-in-motion terminal and a networking communication terminal;
The inquiring module 20 is configured to, when a movement task starts, inquire movement influencing parameters of a movement route, and predict a predicted arrival time of a moving target at each sampling point in the movement route according to the movement influencing parameters;
An access module 30 for accessing the satellite communication quality database and generating satellite communication quality distribution diagrams of a plurality of satellite signals meeting the communication requirements of the mobile object;
A generating module 40, configured to determine an optimal satellite communication signal of a moving target at each sampling point in the moving route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, and generate a communication satellite signal switching strategy of the moving target at the moving route;
the control module 50 is configured to send the communication satellite signal switching policy to each independent communication mobile sub-target in the mobile targets, so that each independent communication mobile sub-target controls the phased array satellite communication-in-motion terminal and the networking communication terminal to perform a communication action according to the communication satellite signal switching policy.
Other embodiments or specific implementation manners of the control terminal of the phased array satellite communication-in-motion terminal of the present invention may refer to the above method embodiments, and will not be described herein.
It is appreciated that in the description herein, reference to the terms "one embodiment," "another embodiment," "other embodiments," or "first through nth embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
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