A control method and terminal for a phased array satellite communication-in-motion terminal

Abstract

The present invention relates to the field of communication technology, and discloses a control method and terminal for a phased array satellite mobile communication terminal. By extracting a moving route in a mobile task, according to the moving influencing parameters of the moving route, the predicted arrival time of the mobile target at each sampling point in the moving route is predicted, and then based on the satellite communication quality distribution map and the predicted arrival time of each sampling point, a communication satellite signal switching strategy of the mobile target in the moving route is generated, and finally the communication satellite signal switching strategy is sent to each independent communication mobile sub-target of the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions. In this way, the overall energy consumption and mutual signal interference of several independent communication mobile sub-targets in the mobile target are reduced, and instantaneous or even seamless switching of satellite communication signals is achieved, thereby improving communication quality and communication continuity.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a control method and a terminal for a phased array satellite communication-in-motion terminal. Background Art

[0002] Phased array satellite mobile communication terminal is a mobile terminal device that uses phased array technology to achieve satellite communication. It can maintain a stable communication connection with the satellite in a mobile state, and has the characteristics of high reliability, high data transmission rate and flexible beam pointing control.

[0003] However, the phased array satellite mobile communication terminals currently installed on high-speed moving vehicles (such as trains, cars, and ships) have the following defects when facing the satellite communication needs during long-distance transportation: (1) Transportation vehicles usually have multiple independent communication mobile sub-targets (such as different carriages in a train, cars at different positions in a car queue, and ships at different positions in a ship group), and each independent communication mobile sub-target has communication needs. If each independent communication mobile sub-target uses a phased array satellite mobile communication terminal to establish satellite communication, there will be problems such as high energy consumption and mutual interference of signals; (2) Due to the high-speed moving transportation The tools move fast and are transported over long distances. Single satellite signal communication cannot guarantee the communication quality in this scenario. If satellite communication signal switching technology is used, it is necessary to go through processes such as phased array antenna beam adjustment, satellite signal search and locking. Since beam switching requires a certain amount of time to adjust, and this process is different from the linear adjustment of the phased array antenna beam direction based on the posture of the transportation tool, the switching between different satellite communication signals may have characteristics such as frequent mutations and large beam direction adjustment angles. Therefore, short and frequent communication interruptions may occur during the switching process between satellite communication signals, affecting the continuity of communication.

[0004] Therefore, how to reduce the overall energy consumption of satellite communications among multiple independent communicating mobile sub-targets in a mobile target, avoid mutual interference of signals, and improve the communication quality and continuity of phased array satellite mobile communication terminals when mounted on high-speed mobile transportation vehicles is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a control method and a terminal for a phased array satellite communication-in-motion terminal, aiming to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides a control method for a phased array satellite communication in motion terminal, comprising the following steps:

[0007] Acquire a mobile task of a mobile target, and extract a mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal;

[0008] At the beginning of the moving task, query the moving influence parameter of the moving route, and predict the predicted arrival time of the moving target when moving to each sampling point in the moving route according to the moving influence parameter;

[0009] Accessing a satellite communication quality database to generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target;

[0010] Based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, determining the best satellite communication signal of the mobile target at each sampling point in the moving route, and generating a communication satellite signal switching strategy for the mobile target in the moving route;

[0011] The communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

[0012] Optionally, the step of querying the movement impact parameter of the movement route specifically includes:

[0013] calling an environmental impact parameter library of the moving route, and extracting an environmental impact parameter set of the moving route from the environmental impact parameter library;

[0014] Based on the environmental impact parameter set, an environmental impact parameter corresponding to each route sampling point in the moving route at each time stamp is generated.

[0015] Optionally, the moving target includes a train, a car or a ship; and the environmental impact parameters include:

[0016] A first environmental parameter affecting the moving speed of a train, a second environmental parameter affecting the moving speed of a car, or a third environmental parameter affecting the moving speed of a ship;

[0017] Among them, the first environmental impact parameters include climate parameters, geographical parameters, track wear parameters, and load parameters; the second environmental impact parameters include geographical parameters, road parameters, and load parameters; and the third environmental impact parameters include wind parameters, ocean current parameters, and load parameters.

[0018] Optionally, the predicted arrival time step of the moving target at each sampling point in the moving route is predicted according to the moving influence parameter, specifically including:

[0019] Acquire historical movement data of the moving target; wherein the historical movement data includes historical environmental impact parameters and historical movement speed having the same time axis;

[0020] Based on historical environmental impact parameters and historical moving speeds, a time series training sample is constructed and input into a recurrent neural network model for training to obtain a trained moving target moving speed prediction model;

[0021] Using the environmental impact parameters, a prediction sample is constructed and input into a trained moving target moving speed prediction model to predict the moving speed of the moving target at each sampling point in the moving route;

[0022] The predicted arrival time of the moving target at each sampling point in the moving route is determined according to the predicted moving speed.

[0023] Optionally, the step of accessing a satellite communication quality database to generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of the mobile target specifically includes:

[0024] Accessing a satellite communication quality database; wherein the satellite communication quality database stores several coverage ranges of satellite signals that meet the communication requirements of a mobile target, and the coverage range includes several coverage range sampling points with corresponding signal strengths;

[0025] Acquire weather data distribution information and geographic data distribution information of the coverage area, and extract satellite communication quality influencing parameters corresponding to each coverage area sampling point in the weather data distribution information and the geographic data distribution information;

[0026] Based on the satellite communication quality influencing parameters corresponding to each coverage range sampling point, the theoretical signal strength of each coverage range sampling point is obtained according to the preset attenuation conversion relationship obtained by the test, and a satellite communication quality distribution map corresponding to each satellite signal at each timestamp is generated.

[0027] Optionally, based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the moving route, determining the best satellite communication signal of the mobile target at each sampling point in the moving route, and generating a communication satellite signal switching strategy step for the mobile target in the moving route specifically includes:

[0028] According to the predicted arrival time of the mobile target at each sampling point in the moving route, the satellite communication quality distribution map of each satellite signal corresponding to the timestamp of the predicted arrival time is matched with the best satellite communication signal with the highest theoretical signal strength at each sampling point;

[0029] Based on the best satellite communication signal with the highest actual signal strength at each sampling point, generating a best satellite communication signal selection time axis when the mobile target moves on the mobile route; wherein the best satellite communication signal selection time axis includes a plurality of satellite communication signal selection duration periods distributed in time sequence;

[0030] Discontinuously assigning the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target, and generating a communication satellite signal switching execution table of the mobile route;

[0031] Generate a signal beam control instruction set according to the first signal beam direction of each independent communication mobile sub-target when performing a previous communication task during the satellite communication signal selection duration and the second signal beam direction to which the next communication task needs to be adjusted to correspond to the best satellite communication signal;

[0032] Based on the signal beam control instruction set and the communication satellite signal switching execution table, a communication satellite signal switching strategy for the mobile target on the moving route is generated.

[0033] Optionally, discontinuously allocating the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target, and generating the communication satellite signal switching execution table of the mobile route, specifically includes:

[0034] The independent communication mobile sub-targets to which the two previous and subsequent communication tasks are assigned are different are the first condition, and the variance of the communication task durations of all independent communication mobile sub-targets in the mobile target is minimized after each communication task is executed by the independent communication mobile sub-target as the second condition, and the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis are assigned to a number of independent communication mobile sub-targets in the mobile target;

[0035] According to the independent communication moving sub-targets of executing the two communication tasks before and after, a communication satellite signal switching execution table of the moving route is generated.

[0036] Optionally, the communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication action steps according to the communication satellite signal switching strategy, specifically including:

[0037] Sending a communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target;

[0038] Driving the independent communication mobile sub-target to execute a communication satellite signal switching action for different satellite communication signals between two adjacent communication tasks according to the communication satellite signal switching strategy in the communication satellite signal switching execution table;

[0039] The communication satellite signal switching action includes establishing a connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the subsequent communication task and the communication satellite, and disconnecting the connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the previous communication task and the communication satellite;

[0040] The phased array satellite mobile communication terminal that drives the independent communication mobile sub-target to establish a connection with the communication satellite communicates with the communication satellite through the data of the remaining independent communication mobile sub-targets obtained by the networking communication terminal;

[0041] Drive the independent communication mobile sub-target to perform a signal beam advance adjustment action for the next communication task after the current communication task is completed according to the signal beam control instruction set in the communication satellite signal switching execution table; wherein the signal beam adjustment action includes adjusting the first signal beam direction of the current communication task to the second signal beam direction.

[0042] Optionally, the method further includes:

[0043] Detect the actual signal strength of the satellite communication signal during the selected duration period when each communication task is executed, and determine whether the actual signal strength and the theoretical signal strength meet the update conditions;

[0044] The update condition is configured such that the proportion of time periods during which the difference between the actual signal strength and the theoretical signal strength exceeds a preset value within a continuous preset time period reaches a target proportion;

[0045] If so, re-execute the query of the mobile influence parameters of the mobile route, and predict the predicted arrival time of the mobile target when it moves to each sampling point in the mobile route based on the mobile influence parameters; access the satellite communication quality database, generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of the mobile target, and obtain the updated predicted arrival time of each sampling point and the satellite communication quality distribution map of several satellite signals.

[0046] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a control terminal for a phased array satellite communication in motion terminal, comprising:

[0047] An acquisition module is used to acquire a mobile task of a mobile target and extract a mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal;

[0048] A query module, used to query the movement influence parameters of the movement route at the beginning of the movement task, and predict the predicted arrival time of the moving target when moving to each sampling point in the movement route according to the movement influence parameters;

[0049] An access module, used to access a satellite communication quality database and generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target;

[0050] A generating module, configured to determine the best satellite communication signal of the mobile target at each sampling point in the mobile route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the mobile route, and generate a communication satellite signal switching strategy for the mobile target in the mobile route;

[0051] The control module is used to send the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

[0052] The beneficial effects of the present invention are as follows: a control method and a terminal for a phased array satellite communication in motion terminal are proposed, the communication quality change in the moving route and the predicted arrival time of the mobile target at each sampling point are considered, the communication task of each satellite communication signal selection duration is assigned to the corresponding independent communication mobile sub-target in the mobile target, a communication satellite signal switching strategy is formed, and a communication satellite signal switching execution table in the communication satellite signal switching strategy is used to control each independent communication mobile sub-target to execute the communication satellite signal switching action, so that during the execution of each communication task, only one target independent communication mobile sub-target communicates with the satellite through the phased array satellite communication in motion terminal, and the other independent communication mobile sub-targets communicate with the target independent communication mobile sub-target through the networking communication terminal. The mobile sub-targets are networked for communication, and then satellite communication is realized through the phased array satellite mobile communication terminal of the target independent communication mobile sub-target, so as to reduce the overall energy consumption and signal interference between several independent communication mobile sub-targets in the mobile target; the signal beam control instruction set in the communication satellite signal switching strategy is used to control each independent communication mobile sub-target to adjust the beam pointing in advance to the next assigned communication task after executing the previous assigned communication task, and the advance adjustment of the beam pointing is realized through the discontinuous allocation and sequential execution of communication tasks, which can realize instantaneous or even seamless switching of satellite communication signals, and improve the communication quality and communication continuity of the phased array satellite mobile communication terminal when it is loaded on a high-speed mobile transportation vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1It is a flow chart of an embodiment of a control method of a phased array satellite communication-in-motion terminal of the present invention;

[0054] Figure 2 The figure is a schematic diagram of the structure of an embodiment of a control terminal of a phased array satellite communication-in-motion terminal according to the present invention.

[0055] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0057] The embodiment of the present invention provides a control method for a phased array satellite mobile communication terminal, referring to Figure 1 , Figure 1 The present invention is a flow chart of a control method for a phased array satellite communication-in-motion terminal according to an embodiment of the present invention.

[0058] In this embodiment, the control method of the phased array satellite communication in motion terminal includes the following steps:

[0059] S100: Acquire a mobile task of a mobile target, and extract a mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal;

[0060] S200: When the moving task starts, query the moving influence parameter of the moving route, and predict the predicted arrival time of the moving target when moving to each sampling point in the moving route according to the moving influence parameter;

[0061] S300: Accessing a satellite communication quality database to generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target;

[0062] S400: determining the best satellite communication signal of the mobile target at each sampling point in the mobile route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the mobile route, and generating a communication satellite signal switching strategy for the mobile target in the mobile route;

[0063] S500: Send the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

[0064] It should be noted that the phased array satellite mobile communication terminals currently installed on high-speed moving vehicles (such as trains, cars, and ships) have the following defects when facing the satellite communication needs during long-distance transportation: (1) Transportation vehicles usually have multiple independent communication mobile sub-targets (such as different carriages in a train, cars at different positions in a car queue, and ships at different positions in a ship group), and each independent communication mobile sub-target has communication needs. If each independent communication mobile sub-target uses a phased array satellite mobile communication terminal to establish satellite communication, there will be problems such as high energy consumption and mutual interference of signals; (2) Due to high-speed movement, the mobile terminals are usually equipped with a phased array satellite mobile communication terminal, which can be used to communicate with each other. The transportation tools move fast and the transportation distance is long. A single satellite signal communication cannot guarantee the communication quality in this scenario. If satellite communication signal switching technology is used, it is necessary to go through the processes of phased array antenna beam adjustment, satellite signal search and locking. Since beam switching requires a certain amount of time to adjust, and this process is different from the linear adjustment of the phased array antenna beam direction based on the transportation tool posture, the switching between different satellite communication signals may have the characteristics of frequent mutations and large beam direction adjustment angles. Therefore, in the process of switching between satellite communication signals, short and frequent communication interruptions may occur, affecting the continuity of communication.

[0065] In order to solve the above problems, this embodiment extracts the moving route in the mobile task, predicts the predicted arrival time of the mobile target at each sampling point in the moving route according to the mobile influencing parameters of the mobile route, and then generates a communication satellite signal switching strategy for the mobile target in the moving route based on the communication quality distribution map of the satellite and the predicted arrival time of each sampling point. Finally, the communication satellite signal switching strategy is sent 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 terminal in motion and the networking communication terminal to perform communication actions.

[0066] Therefore, the present invention considers the communication quality changes in the mobile route and the predicted arrival time of the mobile target at each sampling point, allocates the communication task of each satellite communication signal selection duration time to the corresponding independent communication mobile sub-target in the mobile target, forms a communication satellite signal switching strategy, and uses the communication satellite signal switching execution table in the communication satellite signal switching strategy to control each independent communication mobile sub-target to execute the communication satellite signal switching action, so that during the execution of each communication task, only one target independent communication mobile sub-target communicates with the satellite through the phased array satellite mobile communication terminal, and the remaining independent communication mobile sub-targets communicate with the target independent communication mobile sub-target through the networking communication terminal, and then communicate with the target independent communication mobile sub-target through the target independent communication mobile sub-target. The phased array satellite communication in motion terminal with independent communication mobile sub-targets is used to realize satellite communication, thereby reducing the overall energy consumption and mutual signal interference of several independent communication mobile sub-targets in the mobile target; the signal beam control instruction set in the communication satellite signal switching strategy is used to control each independent communication mobile sub-target to adjust the beam pointing in advance to the next assigned communication task after executing the previous assigned communication task, and the advance adjustment of the beam pointing is realized through the discontinuous allocation and sequential execution of communication tasks, which can realize instantaneous or even seamless switching of satellite communication signals, thereby improving the communication quality and communication continuity of the phased array satellite communication in motion terminal when it is loaded on a high-speed mobile transportation vehicle.

[0067] In a preferred embodiment, the step of querying the movement influence parameter of the movement route specifically includes:

[0068] S210: calling the environmental impact parameter library of the moving route, and extracting the environmental impact parameter set of the moving route from the environmental impact parameter library;

[0069] S220: Based on the environmental impact parameter set, generate an environmental impact parameter corresponding to each route sampling point in the moving route at each timestamp.

[0070] Furthermore, the moving target includes a train, a car or a ship; the environmental impact parameters include: a first environmental impact parameter affecting the moving speed of the train, a second environmental impact parameter affecting the moving speed of the car or a third environmental parameter affecting the moving speed of the ship; wherein the first environmental impact parameter includes climate parameters, geographical parameters, track wear parameters, and load parameters; the second environmental impact parameter includes geographical parameters, road parameters, and load parameters; and the third environmental impact parameter includes wind parameters, ocean current parameters, and load parameters.

[0071] On this basis, according to the movement influence parameter, the predicted arrival time step of the moving target when moving to each sampling point in the moving route specifically includes:

[0072] S230: Acquire historical movement data of the moving target; wherein the historical movement data includes historical environmental impact parameters and historical movement speed having the same time axis;

[0073] S240: Based on the historical environmental impact parameters and the historical moving speed, a time series training sample is constructed and input into a recurrent neural network model for training, so as to obtain a trained moving target moving speed prediction model;

[0074] S250: constructing prediction samples by using environmental impact parameters and inputting the trained moving target moving speed prediction model to predict the moving speed of the moving target at each sampling point in the moving route;

[0075] S260: Determine the predicted arrival time of the moving target at each sampling point in the moving route according to the predicted moving speed.

[0076] In this embodiment, by calling the environmental impact parameter library of the moving route, the environmental impact parameter corresponding to each sampling point of the moving target in the moving route at each time stamp is determined, and the moving target moving speed prediction model obtained by training with historical moving data is used to predict the predicted moving speed of the moving target at each sampling point in the moving route, and finally the predicted arrival time of the target at each sampling point in the moving route is calculated according to the predicted moving speed. It should be noted that, considering that the moving speed of the moving target (such as a train, a car or a ship) is not only related to the environmental impact parameters of each route sampling point, but also to the environmental impact parameters before and after the route sampling point, this embodiment adopts a recurrent neural network model to construct a time series training sample, learn the influence of the environmental impact parameters before and after each route sampling point in the historical moving process on the speed of the current route sampling point, and then predict the moving speed of the moving target in the current moving route, which has high prediction accuracy and environmental adaptability.

[0077] In a preferred embodiment, the step of accessing a satellite communication quality database and generating a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target specifically includes:

[0078] S310: Accessing a satellite communication quality database; wherein the satellite communication quality database stores several coverage ranges of satellite signals that meet the communication requirements of a mobile target, and the coverage range includes several coverage range sampling points with corresponding signal strengths;

[0079] S320: Acquire weather data distribution information and geographic data distribution information of the coverage area, and extract satellite communication quality influencing parameters corresponding to each coverage area sampling point in the weather data distribution information and the geographic data distribution information;

[0080] S330: Based on the satellite communication quality influencing parameters corresponding to each coverage range sampling point, according to the preset attenuation conversion relationship obtained by the test, the theoretical signal strength of each coverage range sampling point is obtained, and a satellite communication quality distribution diagram corresponding to each satellite signal at each timestamp is generated.

[0081] In this embodiment, taking into account the different coverage ranges of different satellite communication signals, the different signal strengths at different locations within the coverage range, and the impact of environmental factors (i.e., weather data including heavy rain, heavy snow, sandstorms, etc. that may cause satellite signals to be attenuated, scattered, and absorbed; and geographical data including mountainous areas and areas with dense buildings that may block satellite signals) on the signal strength at different locations within the coverage range, a satellite communication quality distribution map corresponding to each satellite signal at each timestamp is generated.

[0082] 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 the best satellite communication signal of the mobile target at each sampling point in the moving route, and generating a communication satellite signal switching strategy step for the mobile target in the moving route specifically include:

[0083] S410: matching the best satellite communication signal with the highest theoretical signal strength at each sampling point according to the predicted arrival time of the mobile target at each sampling point in the moving route and the satellite communication quality distribution map of each satellite signal at the timestamp corresponding to the predicted arrival time;

[0084] S420: generating a time axis for selecting the best satellite communication signal when the mobile target moves on the moving route based on the best satellite communication signal with the highest actual signal strength at each sampling point; wherein the time axis for selecting the best satellite communication signal includes a plurality of satellite communication signal selection durations distributed in time sequence;

[0085] S430: discontinuously assigning the communication tasks of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target, and generating a communication satellite signal switching execution table of the mobile route;

[0086] S440: generating a signal beam control instruction set according to a first signal beam direction of each independent communication mobile sub-target when performing a previous communication task during a satellite communication signal selection duration and a second signal beam direction to be adjusted to correspond to an optimal satellite communication signal for a subsequent communication task;

[0087] S450: Based on the signal beam control instruction set and the communication satellite signal switching execution table, generate a communication satellite signal switching strategy for the mobile target on the moving route.

[0088] Furthermore, the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis is discontinuously assigned to a plurality of independent communication mobile sub-targets in the mobile target, and the communication satellite signal switching execution table of the mobile route is generated, which specifically includes:

[0089] S431: The independent communication mobile sub-targets to which the two previous and subsequent communication tasks are assigned are different as the first condition, and the variance of the communication task durations of all the independent communication mobile sub-targets in the mobile target is minimized after each communication task is executed by the independent communication mobile sub-target as the second condition, and the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis is assigned to a plurality of independent communication mobile sub-targets in the mobile target;

[0090] S432: Generate a communication satellite signal switching execution table for the moving route according to the independent communication moving sub-targets of executing the two communication tasks before and after.

[0091] On this basis, the communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication action steps according to the communication satellite signal switching strategy, specifically including:

[0092] S510: Sending the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target;

[0093] S520: driving the independent communication mobile sub-target to execute a communication satellite signal switching action for different satellite communication signals between two adjacent communication tasks according to the communication satellite signal switching strategy in the communication satellite signal switching execution table;

[0094] The communication satellite signal switching action includes establishing a connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the subsequent communication task and the communication satellite, and disconnecting the connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the previous communication task and the communication satellite;

[0095] S530: driving the phased array satellite mobile communication terminal of the independent communication mobile sub-target connected to the communication satellite to communicate with the communication satellite using the data of the remaining independent communication mobile sub-targets acquired by the networking communication terminal;

[0096] S540: Drive the independent communication mobile sub-target to perform the signal beam advance adjustment action for the next communication task after the current communication task is completed according to the signal beam control instruction set in the communication satellite signal switching execution table; wherein the signal beam adjustment action includes adjusting the first signal beam direction of the current communication task to the second signal beam direction.

[0097] In this embodiment, by considering the change of communication quality in the moving route and the predicted arrival time of the mobile target at each sampling point, the communication task of each satellite communication signal selection duration is assigned to the corresponding independent communication mobile sub-target in the mobile target, forming a communication satellite signal switching strategy, and using the communication satellite signal switching execution table in the communication satellite signal switching strategy to control each independent communication mobile sub-target to execute the communication satellite signal switching action, so that during the execution of each communication task, only one target independent communication mobile sub-target communicates with the satellite through the phased array satellite communication in motion terminal, and the remaining independent communication mobile sub-targets communicate with the target independent communication mobile sub-target through the networking communication terminal, and then realize satellite communication through the phased array satellite communication in motion terminal of the target independent communication mobile sub-target, thereby reducing the overall energy consumption of several independent communication mobile sub-targets in the mobile target for communication and the signal interference between each other. At the same time, the signal beam control instruction set in the communication satellite signal switching strategy is used to control each independent communication mobile sub-target to adjust the beam pointing in advance to the next assigned communication task after completing the previous assigned communication task. By discontinuously allocating and sequentially executing communication tasks, the beam pointing is adjusted in advance, which can achieve instantaneous or even seamless switching of satellite communication signals, and improve the communication quality and communication continuity of phased array satellite mobile terminals in the scenario of being loaded on high-speed mobile transportation vehicles.

[0098] In a preferred embodiment, the method further comprises:

[0099] S610: Detecting the actual signal strength of the satellite communication signal during the selected duration period when each communication task is executed, and determining whether the actual signal strength and the theoretical signal strength meet the update condition;

[0100] The update condition is configured such that the proportion of time periods during which the difference between the actual signal strength and the theoretical signal strength exceeds a preset value within a continuous preset time period reaches a target proportion;

[0101] S620: If yes, re-execute the query of the mobile influence parameters of the mobile route, and predict the predicted arrival time of the mobile target when it moves to each sampling point in the mobile route based on the mobile influence parameters; access the satellite communication quality database, generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of the mobile target, and obtain the updated predicted arrival time of each sampling point and the satellite communication quality distribution map of several satellite signals.

[0102] Taking into account the variability of satellite communication quality distribution diagrams of different satellite communication signals, the deviation between the actual moving speed of the mobile target and the prediction, etc., this embodiment detects the actual signal strength of the satellite communication signal during the continuous period when each communication task is executed in real time, and re-executes the prediction of the arrival time of the mobile target at each sampling point and the generation of the satellite communication quality distribution diagram when the update conditions are met, and re-executes the generation of the communication satellite signal switching strategy and communication action of the subsequent moving route on this basis. As a result, the adaptability of the present invention under different environmental change conditions and the communication stability and continuity are improved.

[0103] The embodiment of the present invention provides a control terminal for a phased array satellite mobile communication terminal, referring to Figure 2 , Figure 2 The figure is a schematic diagram of the structure of an embodiment of a control terminal of a phased array satellite communication-in-motion terminal according to the present invention.

[0104] In this embodiment, the control terminal of the phased array satellite communication in motion terminal includes:

[0105] The acquisition module 10 is used to acquire the mobile task of the mobile target and extract the mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal;

[0106] A query module 20 is used to query the movement influence parameters of the movement route at the beginning of the movement task, and predict the predicted arrival time of the moving target at each sampling point in the movement route according to the movement influence parameters;

[0107] An access module 30, for accessing a satellite communication quality database, and generating a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target;

[0108] A generating module 40 is used to determine the best satellite communication signal of the mobile target at each sampling point in the mobile route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the mobile route, and generate a communication satellite signal switching strategy for the mobile target in the mobile route;

[0109] The control module 50 is used to send the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

[0110] Other embodiments or specific implementations of the control terminal of the phased array satellite communication in motion terminal of the present invention can refer to the above-mentioned method embodiments, which will not be described in detail here.

[0111] It is understood that, in the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", "other embodiments", or "first to Nth embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0112] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0113] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A control method for a phased array satellite mobile communication terminal, characterized in that: The following steps are involved: Acquire a mobile task of a mobile target, and extract a mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal; At the beginning of the moving task, query the moving influence parameter of the moving route, and predict the predicted arrival time of the moving target when moving to each sampling point in the moving route according to the moving influence parameter; Accessing a satellite communication quality database to generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target; specifically comprising: accessing a satellite communication quality database; wherein the satellite communication quality database stores coverage ranges of several satellite signals that meet the communication requirements of a mobile target, and the coverage range includes several coverage range sampling points with corresponding signal strengths; obtaining weather data distribution information and geographic data distribution information of the coverage range, and extracting satellite communication quality influencing parameters corresponding to each coverage range sampling point in the weather data distribution information and the geographic data distribution information; based on the satellite communication quality influencing parameters corresponding to each coverage range sampling point, according to a preset attenuation conversion relationship obtained by the test, obtaining a theoretical signal strength of each coverage range sampling point, and generating a satellite communication quality distribution map corresponding to each satellite signal at each timestamp; Based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the mobile route, the best satellite communication signal of the mobile target at each sampling point in the mobile route is determined, and a communication satellite signal switching strategy for the mobile target in the mobile route is generated; specifically comprising: according to the predicted arrival time of each sampling point in the mobile route, the satellite communication quality distribution map of each satellite signal corresponding to the timestamp of the predicted arrival time is matched at each sampling point with the best satellite communication signal with the highest theoretical signal strength; based on the best satellite communication signal with the highest actual signal strength at each sampling point, a time axis for selecting the best satellite communication signal when the mobile target moves on the mobile route is generated; wherein the time axis for selecting the best satellite communication signal The invention comprises a plurality of satellite communication signal selection durations distributed in time sequence; discontinuously allocating the communication tasks 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 target, and generating a communication satellite signal switching execution table of the mobile route; 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 in the satellite communication signal selection duration and a second signal beam direction to which a next communication task corresponding to the optimal satellite communication signal needs to be adjusted; generating a communication satellite signal switching strategy of the mobile target in the mobile route based on the signal beam control instruction set and the communication satellite signal switching execution table; The step of discontinuously allocating the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target, and generating the communication satellite signal switching execution table of the mobile route specifically comprises: taking the independent communication mobile sub-targets to which the first and second communication tasks are allocated to be different as a first condition, and taking the variance of the communication task duration of all independent communication mobile sub-targets in the mobile target to be the smallest after each communication task is executed by the independent communication mobile sub-target as a second condition, allocating the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target; and generating the communication satellite signal switching execution table of the mobile route according to the independent communication mobile sub-targets that execute the first and second communication tasks; The communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

2. The control method of the phased array satellite communication in motion terminal according to claim 1, characterized in that: The step of querying the movement influence parameter of the movement route specifically includes: calling an environmental impact parameter library of the moving route, and extracting an environmental impact parameter set of the moving route from the environmental impact parameter library; Based on the environmental impact parameter set, an environmental impact parameter corresponding to each route sampling point in the moving route at each time stamp is generated.

3. The control method of the phased array satellite communication in motion terminal according to claim 2, characterized in that: The mobile target includes a train, a car or a ship; the environmental impact parameters include: a first environmental impact parameter affecting the moving speed of a train, a second environmental impact parameter affecting the moving speed of a car, or a third environmental impact parameter affecting the moving speed of a ship; Among them, the first environmental impact parameters include climate parameters, geographical parameters, track wear parameters, and load parameters; the second environmental impact parameters include geographical parameters, road parameters, and load parameters; and the third environmental impact parameters include wind parameters, ocean current parameters, and load parameters.

4. The control method of the phased array satellite communication in motion terminal according to claim 2 or 3, characterized in that: The step of predicting the arrival time of the moving target at each sampling point in the moving route according to the moving influence parameter specifically includes: Acquire historical movement data of the moving target; wherein the historical movement data includes historical environmental impact parameters and historical movement speed having the same time axis; Based on historical environmental impact parameters and historical moving speeds, a time series training sample is constructed and input into a recurrent neural network model for training to obtain a trained moving target moving speed prediction model; Using the environmental impact parameters, a prediction sample is constructed and input into a trained moving target moving speed prediction model to predict the moving speed of the moving target at each sampling point in the moving route; The predicted arrival time of the moving target at each sampling point in the moving route is determined according to the predicted moving speed.

5. The control method of the phased array satellite communication in motion terminal according to claim 1, characterized in that: The communication satellite signal switching strategy is sent to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication action steps according to the communication satellite signal switching strategy, specifically including: Sending a communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target; Driving the independent communication mobile sub-target to execute a communication satellite signal switching action for different satellite communication signals between two adjacent communication tasks according to the communication satellite signal switching strategy in the communication satellite signal switching execution table; The communication satellite signal switching action includes establishing a connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the subsequent communication task and the communication satellite, and disconnecting the connection between the phased array satellite mobile terminal of the independent communication mobile sub-target of the previous communication task and the communication satellite; The phased array satellite mobile communication terminal that drives the independent communication mobile sub-target to establish a connection with the communication satellite communicates with the communication satellite through the data of the remaining independent communication mobile sub-targets obtained by the networking communication terminal; Drive the independent communication mobile sub-target to execute the signal beam advance adjustment action for the next communication task after the current communication task is completed according to the signal beam control instruction set in the communication satellite signal switching execution table; wherein the signal beam advance adjustment action includes adjusting the first signal beam direction of the current communication task to the second signal beam direction.

6. The control method of the phased array satellite communication in motion terminal according to claim 5, characterized in that: The method further comprises: Detect the actual signal strength of the satellite communication signal during the selected duration period when each communication task is executed, and determine whether the actual signal strength and the theoretical signal strength meet the update conditions; The update condition is configured such that the proportion of time periods during which the difference between the actual signal strength and the theoretical signal strength exceeds a preset value within a continuous preset time period reaches a target proportion; If so, re-execute the query of the mobile influence parameters of the mobile route, and predict the predicted arrival time of the mobile target when it moves to each sampling point in the mobile route based on the mobile influence parameters; access the satellite communication quality database, generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of the mobile target, and obtain the updated predicted arrival time of each sampling point and the satellite communication quality distribution map of several satellite signals.

7. A control terminal for a phased array satellite mobile communication terminal, characterized in that: include: An acquisition module is used to acquire a mobile task of a mobile target and extract a mobile route in the mobile task; wherein the mobile target includes a plurality of independent communication mobile sub-targets, each of which is equipped with a phased array satellite mobile communication terminal and a networking communication terminal; A query module, used to query the movement influence parameters of the movement route at the beginning of the movement task, and predict the predicted arrival time of the moving target when moving to each sampling point in the movement route according to the movement influence parameters; An access module is used to access a satellite communication quality database and generate a satellite communication quality distribution map of several satellite signals that meet the communication requirements of a mobile target; specifically comprising: accessing a satellite communication quality database; wherein the satellite communication quality database stores coverage ranges of several satellite signals that meet the communication requirements of a mobile target, and the coverage range includes several coverage range sampling points with corresponding signal strengths; obtaining weather data distribution information and geographic data distribution information of the coverage range, and extracting satellite communication quality influencing parameters corresponding to each coverage range sampling point in the weather data distribution information and the geographic data distribution information; based on the satellite communication quality influencing parameters corresponding to each coverage range sampling point, according to a preset attenuation conversion relationship obtained by the test, obtaining a theoretical signal strength of each coverage range sampling point, and generating a satellite communication quality distribution map corresponding to each satellite signal at each timestamp; A generation module is used to determine the best satellite communication signal of a mobile target at each sampling point in the mobile route based on the satellite communication quality distribution map and the predicted arrival time of each sampling point in the mobile route, and generate a communication satellite signal switching strategy for the mobile target in the mobile route; specifically comprising: matching the best satellite communication signal with the highest theoretical signal strength at each sampling point according to the predicted arrival time of each sampling point in the mobile route, based on the satellite communication quality distribution map of each satellite signal at the timestamp corresponding to the predicted arrival time; generating a time axis for selecting the best satellite communication signal when the mobile target moves on the mobile route based on the best satellite communication signal with the highest actual signal strength at each sampling point; wherein the best satellite communication signal selection The time axis includes a plurality of satellite communication signal selection durations distributed in chronological order; the communication tasks of each satellite communication signal selection duration in the optimal satellite communication signal selection time axis are discontinuously assigned to a plurality of independent communication mobile sub-targets in the mobile target, and a communication satellite signal switching execution table of the mobile route is generated; a signal beam control instruction set is generated according to a first signal beam direction of each independent communication mobile sub-target when executing a previous communication task in the satellite communication signal selection duration and a second signal beam direction to which a subsequent communication task corresponding to the optimal satellite communication signal needs to be adjusted; based on the signal beam control instruction set and the communication satellite signal switching execution table, a communication satellite signal switching strategy of the mobile target in the mobile route is generated; The step of discontinuously allocating the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target, and generating the communication satellite signal switching execution table of the mobile route specifically comprises: taking the independent communication mobile sub-targets to which the first and second communication tasks are allocated to be different as a first condition, and taking the variance of the communication task duration of all independent communication mobile sub-targets in the mobile target to be the smallest after each communication task is executed by the independent communication mobile sub-target as a second condition, allocating the communication task of each satellite communication signal selection duration period in the optimal satellite communication signal selection time axis to a plurality of independent communication mobile sub-targets in the mobile target; and generating the communication satellite signal switching execution table of the mobile route according to the independent communication mobile sub-targets that execute the first and second communication tasks; The control module is used to send the communication satellite signal switching strategy to each independent communication mobile sub-target in the mobile target, so that each independent communication mobile sub-target controls the phased array satellite mobile communication terminal and the networking communication terminal to perform communication actions according to the communication satellite signal switching strategy.

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