CN113517919A - Control method and device for gateway station in satellite ground system and satellite ground system - Google Patents
Control method and device for gateway station in satellite ground system and satellite ground system Download PDFInfo
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- CN113517919A CN113517919A CN202010271922.1A CN202010271922A CN113517919A CN 113517919 A CN113517919 A CN 113517919A CN 202010271922 A CN202010271922 A CN 202010271922A CN 113517919 A CN113517919 A CN 113517919A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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Abstract
The disclosure relates to a control method and device of a gateway station in a satellite ground system and the satellite ground system, and relates to the technical field of satellite communication. The method of the present disclosure comprises: determining the gateway stations to be closed according to at least one item of information in the weather of the area where each gateway station is located and the running state of each gateway station; according to the distances between other gateway stations and the gateway station to be closed, determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted; the adjusted working state comprises: the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment; and closing the gateway station to be closed, and adjusting the gateway station to be adjusted to be in the adjusted working state.
Description
Technical Field
The disclosure relates to the technical field of satellite communication, and in particular to a control method and device for a gateway station in a satellite ground system and the satellite ground system.
Background
In recent years, low-earth orbit satellite communication systems have become a new growth point in the field of satellite communications. A low earth orbit satellite communication system generally comprises a constellation consisting of a plurality of communication satellites with orbit heights of 300 to 1500 kilometers, a matched ground system and the like. The user access terminal transmits wireless signals, the wireless signals are received by a receiving antenna of the low-orbit communication satellite and forwarded to the ground system, and the ground system is accessed to the ground network. Meanwhile, the low earth orbit communication satellite transmits the signal returned by the ground system downwards to the user terminal through the satellite transmitting antenna, and the whole communication process is completed.
The low earth orbit satellite communication system is a global coverage system, and realizes the interconnection and intercommunication of global users by establishing a gateway station of a ground system in the global, so as to realize the integration with a ground mobile communication system, thereby realizing the seamless coverage and the real-time access of global internet services.
Low earth orbit satellite communication systems typically employ high frequency band communications because high frequency band spectrum resources have the advantages of large bandwidth and high system capacity. But a disadvantage of high band communication is that the link attenuation is large.
Disclosure of Invention
The inventor finds that: the existing low-earth satellite communication system adopts high-frequency-band communication, the problem of link attenuation caused by weather conditions (such as rain) is serious, the transmission performance of the communication system is greatly influenced, and even communication interruption is caused, so that the condition that a gateway station cannot serve due to rain attenuation often occurs, in addition, the condition that equipment failure terminates service also occurs in the gateway station, and the conditions can cause the gateway station to not serve, so that the communication service in the area covered by the gateway station is interrupted.
One technical problem to be solved by the present disclosure is: how to reduce the probability of satellite traffic disruption in situations where some gateway stations are out of service.
According to some embodiments of the present disclosure, there is provided a method for controlling a gateway station in a satellite terrestrial system, including: determining the gateway stations to be closed according to at least one item of information in the weather of the area where each gateway station is located and the running state of each gateway station; according to the distances between other gateway stations and the gateway station to be closed, determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted; the adjusted working state comprises: the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment; and closing the gateway station to be closed, and adjusting the gateway station to be adjusted to be in the adjusted working state.
In some embodiments, determining the gateway stations to be closed according to at least one of weather of an area in which each gateway station is located and operation state of each gateway station includes: for each gateway station, determining the gateway station as a gateway station to be closed under the condition that the weather of the area where the gateway station is located is detected to be preset weather; and/or determining, for each gateway station, the gateway station as the gateway station to be shut down in case the failed gateway station is detected.
In some embodiments, determining the to-be-adjusted gateway station and the adjusted operating state of the to-be-adjusted gateway station according to the distance between the other gateway station and the to-be-closed gateway station includes: determining other gateway stations with the distance to the gateway station to be closed within a first preset distance range as the gateway station to be adjusted; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
In some embodiments, determining the to-be-adjusted gateway station and the adjusted operating state of the to-be-adjusted gateway station according to the distance between the other gateway station and the to-be-closed gateway station includes: and determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to at least one of weather forecast information of the area where the other gateway station is located, position forecast information of a satellite corresponding to the gateway station to be closed and the distance between the other gateway station and the gateway station to be closed.
In some embodiments, determining the to-be-adjusted gateway station and the adjusted operating state of the to-be-adjusted gateway station comprises: determining other gateway stations with the distance to the gateway station to be closed within a second preset distance range as candidate gateway stations to be adjusted; determining candidate gateway stations to be adjusted, in which preset weather does not appear, in the area where the candidate gateway stations to be adjusted are located according to the weather forecast information of the area where the candidate gateway stations to be adjusted are located after the gateway stations to be closed are closed, and using the candidate gateway stations to be adjusted as the gateway stations to be adjusted; and/or determining candidate to-be-adjusted gateway stations of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information according to the position prediction information of the satellite tracked by the to-be-closed gateway station after the to-be-closed gateway station is closed, and using the candidate to-be-adjusted gateway stations as to-be-adjusted gateway stations; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
In some embodiments, the method further comprises: and adjusting the satellite tracking task of the gateway station to be adjusted according to the satellite tracking task of the gateway station to be closed.
In some embodiments, adjusting the satellite tracking mission of the gateway station to be adjusted based on the satellite tracking mission of the gateway station to be turned off comprises: determining the identification of a tracked satellite contained in a satellite tracking task of a gateway station to be closed; determining a satellite tracking task of the gateway station to be adjusted according to a tracking range corresponding to the antenna working elevation range after the gateway station to be adjusted is adjusted and ephemeris information of a satellite corresponding to the identification; wherein, the satellite tracking task includes: identification of the tracked satellite, tracking start and end times, link setup start and end times, and antenna operating angle.
According to other embodiments of the present disclosure, there is provided a control apparatus for a gateway station in a satellite terrestrial system, including: the first determining module is used for determining the gateway stations to be closed according to at least one item of information in the weather of the areas where the gateway stations are located and the running states of the gateway stations; the second determining module is used for determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to the distance between the other gateway stations and the gateway station to be closed; the adjusted working state comprises: the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment; and the control module is used for closing the gateway station to be closed and adjusting the gateway station to be adjusted to the adjusted working state.
In some embodiments, the first determining module is configured to, for each gateway station, determine the gateway station as a gateway station to be closed when it is detected that weather of an area where the gateway station is located is preset weather; and/or determining, for each gateway station, the gateway station as the gateway station to be shut down in case the failed gateway station is detected.
In some embodiments, the second determining module is configured to determine, as the gateway station to be adjusted, other gateway stations whose distance to the gateway station to be closed is within a first preset distance range; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
In some embodiments, the second determining module is configured to determine the gateway station to be adjusted and the adjusted operating state of the gateway station to be adjusted according to at least one of weather forecast information of an area where the other gateway station is located, position prediction information of a corresponding satellite of the gateway station to be closed, and a distance between the other gateway station and the gateway station to be closed.
In some embodiments, the second determining module is configured to determine, as the candidate to-be-adjusted gateway station, other gateway stations whose distance to the to-be-closed gateway station is within a second preset distance range; determining candidate gateway stations to be adjusted, in which preset weather does not appear, in the area where the candidate gateway stations to be adjusted are located according to the weather forecast information of the area where the candidate gateway stations to be adjusted are located after the gateway stations to be closed are closed, and using the candidate gateway stations to be adjusted as the gateway stations to be adjusted; and/or determining candidate to-be-adjusted gateway stations of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information according to the position prediction information of the satellite tracked by the to-be-closed gateway station after the to-be-closed gateway station is closed, and using the candidate to-be-adjusted gateway stations as to-be-adjusted gateway stations; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
In some embodiments, the apparatus further comprises: and the task adjusting module is used for adjusting the satellite tracking task of the gateway station to be adjusted according to the satellite tracking task of the gateway station to be closed.
In some embodiments, the task adjustment module is configured to determine an identification of a tracked satellite included in a satellite tracking task for a gateway station to be turned off; determining a satellite tracking task of the gateway station to be adjusted according to a tracking range corresponding to the antenna working elevation range after the gateway station to be adjusted is adjusted and ephemeris information of a satellite corresponding to the identification; wherein, the satellite tracking task includes: identification of the tracked satellite, tracking start and end times, link setup start and end times, and antenna operating angle.
According to still other embodiments of the present disclosure, there is provided a control apparatus for a gateway station in a satellite terrestrial system, including: a processor; and a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform a method for controlling a gateway station in a satellite terrestrial system according to any of the embodiments described above.
According to still further embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the steps of the method for controlling a gateway station in a satellite earth system according to any of the preceding embodiments.
According to still further embodiments of the present disclosure, there is provided a satellite ground system including: a control device of a gateway station in the satellite ground system of any of the foregoing embodiments; and the gateway station is used for receiving the command of the control device and closing or adjusting the working state.
In the method, the gateway stations to be closed are determined according to at least one item of information of weather of areas where the gateway stations are located and operation states of the gateway stations. According to the distances between other gateway stations and the gateway station to be closed, the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted are determined, the working elevation angle range of the antenna adjusted by the gateway station to be adjusted is enlarged, the coverage range, namely the tracking range of the satellite can be enlarged, and therefore the coverage loss caused by closing the gateway station to be closed is supplemented. The scheme disclosed by the invention can reduce the probability of satellite communication service interruption and ensure the continuity of the satellite communication service as much as possible.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 illustrates a flow diagram of a method of controlling a gateway station in a satellite terrestrial system according to some embodiments of the present disclosure.
Fig. 2 illustrates a schematic diagram of the antenna operating elevation angle of some embodiments of the present disclosure.
Fig. 3 shows a flow chart of a method for controlling a gateway station in a satellite terrestrial system according to further embodiments of the present disclosure.
Fig. 4 shows a schematic structural diagram of a control device of a gateway station in a satellite terrestrial system according to some embodiments of the present disclosure.
Fig. 5 is a schematic structural diagram of a control device of a gateway station in a satellite terrestrial system according to another embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram illustrating a control apparatus of a gateway station in a satellite terrestrial system according to further embodiments of the present disclosure.
Fig. 7 illustrates a structural schematic diagram of a satellite terrestrial system of some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The present disclosure proposes a method for controlling a gateway station in a satellite terrestrial system, which is described below with reference to fig. 1.
Fig. 1 is a flow chart of some embodiments of a method for controlling gateway stations in a satellite terrestrial system according to the present disclosure. As shown in fig. 1, the method of this embodiment includes: steps S102 to S106. The method of the embodiment can be executed by the control device of the gateway station in the satellite ground system provided by the disclosure.
In step S102, the gateway station to be closed is determined according to at least one item of information of weather in an area where each gateway station is located and an operation state of each gateway station.
Each gateway station may be provided with weather survey equipment (e.g., sensors) or acquisition modules for acquiring weather around the gateway station, such as weather including atmosphere, cloud, rain, and the like, and transmitting the weather information to a control device (hereinafter referred to as a control device) of the gateway station in the satellite ground system. Or the control device of the gateway station can acquire weather forecast data of the area where each gateway station is located through a meteorological department. The control device may also obtain operational status information of the respective gateway stations, for example, information of normal operation or equipment failure.
In some embodiments, for each gateway station, in the case that the weather of the area where the gateway station is located is detected to be the preset weather, the gateway station is determined as the gateway station to be closed. For example, whether the current weather is preset weather (for example, raining, sand storm, etc.) can be directly determined through weather forecast information, and whether the information such as humidity reaches a corresponding threshold value can also be judged through the acquired humidity collected by the sensor, the content of particulate matters in other weather, etc. Determining whether the current weather is preset weather.
In further embodiments, for each gateway station, in the event that the failed gateway station is detected, the gateway station is determined to be a gateway station to be shut down. The antenna in the gateway station may be in fault, or other modules in the gateway station may be in fault, and the gateway station is determined as the gateway station to be closed as long as the gateway station cannot normally operate.
The method analyzes the performance influence by means of threshold setting, event triggering and the like according to weather of surrounding areas of all gateway stations and equipment fault conditions of the gateway stations, whether the formulated and issued satellite tracking tasks of all the gateway stations are influenced, and which gateway stations cannot work and need to be closed is decided.
In step S104, the gateway station to be adjusted and the adjusted operating state of the gateway station to be adjusted are determined according to the distances between the other gateway stations and the gateway station to be closed.
The gateway station may be preconfigured with a plurality of operating states, different operating states including different antenna operating elevation ranges. As shown in fig. 2, the angle between the normal of the antenna and the horizontal plane is the antenna operating elevation angle. The larger the operating elevation range, the larger the coverage of the antenna signal. Generally, the upper limit value of the working elevation angle of the antenna is 90 degrees, the lower limit value of the working elevation angle of the antenna is mainly adjusted when the working elevation angle range is adjusted, and the lower limit value is larger when the working elevation angle range is lower. For example, under normal working condition, the antenna of each gateway station does satellite tracking work with the working elevation angle not lower than beta 1, so as to provide communication coverage of the whole area, and under the condition that a certain gateway station cannot work in abnormal burst, other part of the gateway stations can ensure the communication coverage as large as possible by reducing the lower limit of the working elevation angle of the antenna to beta 2, so as to achieve the purpose of global coverage. The lower limit of the antenna operating elevation angle is 2 degrees at the lowest.
In some embodiments, other gateway stations within a first preset distance range from the gateway station to be closed are determined as the gateway station to be adjusted; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the different working states correspond to different coverage ranges (or tracking ranges), and the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
The adjustment rules may be pre-configured according to the distance between the respective gateway stations, including: and under the condition that each gateway station is closed, the corresponding identification of the gateway station to be adjusted. For example, in the case where the gateway station a is turned off, the gateway stations B and C are regarded as the gateway stations to be adjusted. And then, the gateway station to be adjusted can be directly determined according to the adjustment rule, so that the efficiency is improved. Furthermore, the adjusted working state of each gateway station to be adjusted can be pre-configured according to the distance between the gateway station to be adjusted and the gateway station to be closed, and the information can also be stored in an adjustment rule to be directly applied without on-line calculation. For example, when the gateway station a is turned off, the gateway stations B and C are regarded as the gateway stations to be adjusted, and the adjusted operating state of the gateway station B is B (originally a) and the adjusted operating state of the gateway station C is C (originally a).
The larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the coverage range (or tracking range) corresponding to the adjusted working state is, and the larger the working elevation range of the adjusted antenna is. Different distance ranges can be configured in advance, corresponding different working states are corresponded, and the corresponding working states are determined according to the distance range of the distance between the gateway station to be adjusted and the gateway station to be closed.
In some embodiments, the gateway station to be adjusted and the adjusted operating state of the gateway station to be adjusted are determined according to at least one of weather forecast of an area where the other gateway station is located, position prediction information of a corresponding satellite of the gateway station to be closed, and distances between the other gateway station and the gateway station to be closed. Namely, the gateway station to be adjusted is determined to be capable of referring to weather information, position prediction information of satellites and other information besides the distance information.
Further, for example, other gateway stations whose distance from the gateway station to be closed is within a second preset distance range are determined as candidate gateway stations to be adjusted; and determining the candidate gateway station to be adjusted, in which the preset weather does not appear, in the area where the candidate gateway station to be adjusted is located as the gateway station to be adjusted according to the weather forecast information of the area where the candidate gateway station to be adjusted is located after the gateway station to be closed is closed. Further determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
For another example, other gateway stations with the distance to the gateway station to be closed within a second preset distance range are determined as candidate gateway stations to be adjusted; and according to the position prediction information of the satellite tracked by the gateway station to be closed after the gateway station to be closed is closed, determining candidate gateway stations to be adjusted, of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information, as the gateway stations to be adjusted. Further determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
Firstly, a part of candidate to-be-adjusted gateway stations are selected according to the distance information, so that the calculation amount can be reduced, and the efficiency is improved. After the gateway station to be closed is closed, the satellite which needs to be tracked originally cannot be tracked and cannot realize communication when passing through the tracking range of the gateway station to be closed above the gateway station to be closed, so that the tracking range needs to be expanded by other gateway stations to realize the tracking of the satellite. A gateway station to be shut down may originally track one or more satellites. For each satellite, the position prediction information of the satellite may be calculated according to the ephemeris information of the satellite, and an existing ephemeris extrapolation algorithm may be specifically used, which is not described herein again.
Further, the closing time of the gateway station to be closed may be predicted, for example, the closing time may be predicted from weather forecast information, or the closing time may be predicted from the counted average maintenance time of the same kind of fault, or the like. And for each satellite tracked by the gateway station to be closed, predicting the position area of the satellite within the closing time according to the ephemeris information of the satellite. The maximum tracking range of each gateway station may be determined from the operating elevation range of the antenna of each gateway station (which may be determined off-line). And comparing the maximum tracking range of each gateway station with the position area of the satellite within the predicted closing time, and determining candidate to-be-adjusted gateway stations of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information as the to-be-adjusted gateway stations.
After the gateway station to be adjusted is determined, in addition to determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed, the working state of the gateway station to be adjusted can also be determined according to the position area of each satellite tracked by the gateway station to be closed within the predicted closing time, so that the tracking range corresponding to the adjusted antenna working elevation covers the position area. The different methods for selecting the gateway station to be adjusted can be combined.
In step S106, the gateway station to be closed is closed, and the gateway station to be adjusted is adjusted to the adjusted operating state.
In the method of the above embodiment, the gateway station to be closed is determined according to at least one item of information of weather and operation state of each gateway station. According to the distances between other gateway stations and the gateway station to be closed, the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted are determined, the working elevation angle range of the antenna adjusted by the gateway station to be adjusted is enlarged, the coverage range, namely the tracking range of the satellite can be enlarged, and therefore the coverage loss caused by closing the gateway station to be closed is supplemented. The scheme of the embodiment can reduce the probability of satellite communication service interruption and ensure the continuity of the satellite communication service as much as possible.
Further embodiments of the method for controlling gateway stations in a satellite earth system according to the present disclosure are described below with reference to fig. 3.
Fig. 3 is a flow chart of another embodiment of a method for controlling a gateway station in a satellite terrestrial system according to the present disclosure. As shown in fig. 3, the method of this embodiment includes: steps S302 to S308.
In step S302, the gateway station to be closed is determined according to at least one item of information of weather in an area where each gateway station is located and an operation state of each gateway station.
In step S304, the to-be-adjusted gateway station and the adjusted operating state of the to-be-adjusted gateway station are determined according to at least one of weather forecast information of an area where the other gateway station is located, position prediction information of a satellite corresponding to the to-be-closed gateway station, and a distance between the other gateway station and the to-be-closed gateway station.
In step S306, the gateway station to be closed is closed, and the gateway station to be adjusted is adjusted to the adjusted operating state.
In step S308, the satellite tracking task of the gateway station to be adjusted is adjusted according to the satellite tracking task of the gateway station to be closed.
Step S308 and step S306 may be executed in parallel without distinguishing the order. In some embodiments, an identification of a tracked satellite included in a satellite tracking task to shut down a gateway station is determined; determining a satellite tracking task of the gateway station to be adjusted according to a tracking range corresponding to the antenna working elevation range after the gateway station to be adjusted is adjusted and ephemeris information of a satellite corresponding to the identification; wherein, the satellite tracking task includes: identification of the tracked satellite, tracking start and end times, link setup start and end times, and antenna operating angle.
The foregoing embodiments describe that for each satellite tracked by a gateway station to be shut down, the location area of that satellite at the shut down time can be predicted from ephemeris information for that satellite. And the tracking range of the gateway station to be adjusted after adjustment can be determined, so that the time when the satellite to be closed off the tracking of the gateway station enters the tracking range of the gateway station to be adjusted and the leaving time can be obtained according to the two information, and the tracking start and end time and the chain establishment start and end time can be determined. And the corresponding antenna working angle, angle guiding data and the like can be determined according to each position of the satellite operation. Thereby generating a new satellite tracking task for the gateway station to be adjusted.
The new satellite tracking task of the gateway station to be adjusted may affect the original tracking task of the gateway station itself, and may also interfere with the tracking tasks of other neighboring gateway stations. Therefore, according to the service state (working/closing) and satellite ephemeris and other information of all the gateway stations, the tracking plan information of all the antenna devices in the gateway stations can be determined, including the pitch angle information of the antennas, the tracking satellite information, specifically including the information of the satellite identification, the tracking start and end time, the link establishment start and end time, the angle guiding data and the like, and a new gateway station tracking plan is generated and is issued to each gateway station for execution.
For example, for a low-orbit broadband communication system, the satellite orbit height is 1150 kilometers. By comprehensively considering various factors, such as rainfall influence, coverage condition, interference avoidance and the like, 4 gateway stations are established in a certain area, and the communication service in the whole area can be completely covered under the condition that the lower limit of the normal working elevation angle beta 1 is 15-degree elevation angle. When a gateway station has to be switched off, the remaining 3 gateway stations can achieve full coverage of the communication service for the whole area by adjusting the elevation angle of the antenna of the gateway station to beta 2 with a lower limit of 5 deg.
According to the scheme, under the condition that any gateway station needs to be closed due to abnormal emergency such as rain attenuation and equipment failure, the ground control system is used for comprehensively controlling and reducing the working elevation angles of the antennas of other gateway stations, the coverage range is expanded, the complete coverage of the communication service in the whole area is realized, and the continuity of the communication service is ensured.
The present disclosure also provides a control apparatus for a gateway station in a satellite terrestrial system, which is described below with reference to fig. 4.
Fig. 4 is a block diagram of some embodiments of a control device for a gateway station in a satellite terrestrial system according to the present disclosure. As shown in fig. 4, the apparatus 40 of this embodiment includes: a first determination module 410, a second determination module 420, and a control module 430.
The first determining module 410 is configured to determine the gateway stations to be closed according to at least one of weather of an area where each gateway station is located and operation status of each gateway station.
In some embodiments, the first determining module 410 is configured to, for each gateway station, determine the gateway station as a gateway station to be closed in a case that it is detected that weather of an area where the gateway station is located is preset weather; and/or determining, for each gateway station, the gateway station as the gateway station to be shut down in case the failed gateway station is detected.
The second determining module 420 is configured to determine, according to distances between other gateway stations and a gateway station to be closed, a gateway station to be adjusted and a working state of the adjusted gateway station to be adjusted; the adjusted working state comprises: and the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment.
In some embodiments, the second determining module 420 is configured to determine, as the gateway station to be adjusted, other gateway stations whose distance to the gateway station to be closed is within the first preset distance range; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
In some embodiments, the second determining module 420 is configured to determine the gateway station to be adjusted and the adjusted operating state of the gateway station to be adjusted according to at least one of weather forecast information of an area where the other gateway station is located, position prediction information of a corresponding satellite of the gateway station to be closed, and a distance between the other gateway station and the gateway station to be closed.
In some embodiments, the second determining module 420 is configured to determine, as candidate to-be-adjusted gateway stations, other gateway stations whose distance to the to-be-closed gateway station is within a second preset distance range; determining candidate gateway stations to be adjusted, in which preset weather does not appear, in the area where the candidate gateway stations to be adjusted are located according to the weather forecast information of the area where the candidate gateway stations to be adjusted are located after the gateway stations to be closed are closed, and using the candidate gateway stations to be adjusted as the gateway stations to be adjusted; and/or determining candidate to-be-adjusted gateway stations of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information according to the position prediction information of the satellite tracked by the to-be-closed gateway station after the to-be-closed gateway station is closed, and using the candidate to-be-adjusted gateway stations as to-be-adjusted gateway stations; determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
The control module 430 is configured to close the gateway station to be closed and adjust the gateway station to be adjusted to an adjusted operating state.
In some embodiments, the apparatus further comprises: and the task adjusting module 440 is configured to adjust the satellite tracking task of the gateway station to be adjusted according to the satellite tracking task of the gateway station to be closed.
In some embodiments, the task adjustment module 440 is configured to determine an identification of a tracked satellite included in a satellite tracking task to shut down a gateway station; determining a satellite tracking task of the gateway station to be adjusted according to a tracking range corresponding to the antenna working elevation range after the gateway station to be adjusted is adjusted and ephemeris information of a satellite corresponding to the identification; wherein, the satellite tracking task includes: identification of the tracked satellite, tracking start and end times, link setup start and end times, and antenna operating angle.
In a satellite communication system, a user terminal sends or receives signals to a satellite ground system through a satellite, the satellite ground system also comprises a gateway station system and a control device, and the control device can also complete constellation management, resource management and communication service and is matched with the satellite system and an application system to establish a communication link between the application system and the satellite system and a ground related information network.
The control apparatus of the gateway station in the satellite earth system in the embodiments of the present disclosure may be implemented by various computing devices or computer systems, which are described below with reference to fig. 5 and 6.
Fig. 5 is a block diagram of some embodiments of a control device for a gateway station in a satellite terrestrial system according to the present disclosure. As shown in fig. 5, the apparatus 50 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510, the processor 520 being configured to perform a method of controlling a gateway station in a satellite terrestrial system according to any of the embodiments of the present disclosure based on instructions stored in the memory 510.
Fig. 6 is a block diagram of another embodiment of a control device for a gateway station in a satellite terrestrial system according to the present disclosure. As shown in fig. 6, the apparatus 60 of this embodiment includes: memory 610 and processor 620 are similar to memory 510 and processor 520, respectively. An input output interface 630, a network interface 640, a storage interface 650, and the like may also be included. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be, for example, via a bus 660. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices, such as a database server or a cloud storage server. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also provides a satellite terrestrial system, described below in conjunction with fig. 7.
Fig. 7 is a block diagram of some embodiments of the satellite terrestrial system of the present disclosure. As shown in fig. 7, the system 7 of this embodiment includes: a gateway station control 40/50/60 in a satellite terrestrial system, and a gateway station 72.
The gateway station 72 is used for receiving the command of the control device and performing the closing or adjusting the working state.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (11)
1. A method for controlling a gateway station in a satellite terrestrial system, comprising:
determining the gateway stations to be closed according to at least one item of information in the weather of the area where each gateway station is located and the running state of each gateway station;
according to the distance between other gateway stations and the gateway station to be closed, determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted; the adjusted working state comprises: the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment;
and closing the gateway station to be closed, and adjusting the gateway station to be adjusted to the adjusted working state.
2. The control method according to claim 1,
the determining the gateway station to be closed according to at least one item of information of weather of the area where each gateway station is located and the operation state of each gateway station comprises:
for each gateway station, determining the gateway station as a gateway station to be closed under the condition that the weather of the area where the gateway station is located is detected to be preset weather;
and/or
For each gateway station, in case the failed gateway station is detected, the gateway station is determined as a gateway station to be shut down.
3. The control method according to claim 1,
determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to the distance between other gateway stations and the gateway station to be closed comprises the following steps:
determining other gateway stations with the distance to the gateway station to be closed within a first preset distance range as the gateway stations to be adjusted;
determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; and the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
4. The control method according to claim 1,
determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to the distance between other gateway stations and the gateway station to be closed comprises the following steps:
and determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to at least one of weather forecast information of the area where other gateway stations are located, position prediction information of a satellite corresponding to the gateway station to be closed and the distance between the other gateway stations and the gateway station to be closed.
5. The control method according to claim 4,
the determining of the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted includes:
determining other gateway stations with the distance to the gateway station to be closed within a second preset distance range as candidate gateway stations to be adjusted;
determining candidate gateway stations to be adjusted, in which preset weather does not appear, in the area where the candidate gateway stations to be adjusted are located according to weather forecast information of the area where the candidate gateway stations to be adjusted are located after the gateway stations to be closed are closed, and using the candidate gateway stations to be adjusted as the gateway stations to be adjusted; and/or determining candidate to-be-adjusted gateway stations of which the maximum tracking range can cover all or part of positions corresponding to the position prediction information according to the position prediction information of the satellite tracked by the to-be-closed gateway station after the to-be-closed gateway station is closed, and using the candidate to-be-adjusted gateway stations as to-be-adjusted gateway stations;
determining the working state of the adjusted gateway station to be adjusted according to the distance between the gateway station to be adjusted and the gateway station to be closed; and the larger the distance between the gateway station to be adjusted and the gateway station to be closed is, the larger the working elevation range of the antenna after adjustment is.
6. The control method according to claim 1, further comprising:
and adjusting the satellite tracking task of the gateway station to be adjusted according to the satellite tracking task of the gateway station to be closed.
7. The control method according to claim 6,
the adjusting the satellite tracking task of the gateway station to be adjusted according to the satellite tracking task of the gateway station to be closed comprises the following steps:
determining the identification of the tracked satellite contained in the satellite tracking task of the gateway station to be closed;
determining a satellite tracking task of the gateway station to be adjusted according to a tracking range corresponding to the antenna working elevation range after the gateway station to be adjusted is adjusted and ephemeris information of a satellite corresponding to the identifier;
wherein the satellite tracking task comprises: identification of the tracked satellite, tracking start and end times, link setup start and end times, and antenna operating angle.
8. A control apparatus for a gateway station in a satellite terrestrial system, comprising:
the first determining module is used for determining the gateway stations to be closed according to at least one item of information in the weather of the areas where the gateway stations are located and the running states of the gateway stations;
the second determining module is used for determining the gateway station to be adjusted and the working state of the adjusted gateway station to be adjusted according to the distance between other gateway stations and the gateway station to be closed; the adjusted working state comprises: the range of the working elevation angle of the antenna after adjustment is larger than that of the antenna before adjustment;
and the control module is used for closing the gateway station to be closed and adjusting the gateway station to be adjusted to the adjusted working state.
9. A control apparatus for a gateway station in a satellite terrestrial system, comprising:
a processor; and
a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform the method of controlling a gateway station in a satellite terrestrial system according to any one of claims 1 to 7.
10. A non-transitory computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the steps of the method for controlling a gateway station in a satellite terrestrial system according to any one of claims 1 to 7.
11. A satellite ground system comprising: control means for gateway stations in the satellite earth system as claimed in claim 8 or 9; and
and the gateway station is used for receiving the command of the control device and closing or adjusting the working state.
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| CN113517919B (en) | 2022-12-06 |
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