CN115988539B - Communication link dynamic configuration method, equipment and computer readable storage medium - Google Patents
Communication link dynamic configuration method, equipment and computer readable storage medium Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a communication link dynamic configuration method, equipment and a computer readable storage medium, wherein the method comprises the steps of determining a switching time period of a communication link of an aircraft according to a current communication state, a flight state and a base station state in the flight process of the aircraft, determining a base station with highest predicted link strength as a target base station according to the flight position, the flight speed, the flight height, the distribution position and the working state at the starting time of the switching time period, determining the switching time according to the main communication link state and the backup communication link state in the switching time period, and taking a communication link established with the target base station as a main link at the switching time. The high-efficiency stable communication link dynamic configuration scheme is realized, the transmission stability and reliability of the aircraft to flight data are greatly improved, and the flight safety is effectively ensured.
Description
Technical Field
The present invention relates to the field of unmanned aircraft technology, and in particular, to a method and apparatus for dynamically configuring a communication link, and a computer readable storage medium.
Background
In the prior art, with the development of unmanned aerial vehicle technology, current unmanned aerial vehicle communication links, some of which use point-to-point wireless communication links, and some of which use commercial mobile networks. But all types of communication schemes face the same lost connection problem. Therefore, how to dynamically configure the communication link of the aircraft, so as to ensure the normal receiving and transmitting of the flight data, is a technical problem to be solved urgently at present.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention provides a dynamic configuration method of a communication link, which comprises the following steps:
In the flight process of an aircraft, determining a switching period of a communication link of the aircraft according to a current communication state, a flight state and a base station state, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight height, and the base station state comprises a distribution position and a working state;
At the starting time of the switching period, determining a base station with highest predicted link strength as a target base station according to the flight position, the flight speed, the flight height, the distribution position and the working state;
Determining a switching time according to the main communication link state and the backup communication link state in the switching time period, and taking a communication link established with the target base station as a main link at the switching time;
And transmitting the flight data in the switching period to the target base station through the main link so that the target base station forwards the flight data to a preset server.
Optionally, during the flight of the aircraft, determining a switching period of a communication link of the aircraft according to a current communication state, a flight state and a base station state, where the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and a working state, and includes:
Dividing the distribution position and the working state to obtain the effective areas of the base stations;
and determining the coverage state of the effective area to the flight area of the aircraft according to the flight position, the flight speed and the flight altitude.
Optionally, during the flight of the aircraft, determining a switching period of a communication link of the aircraft according to a current communication state, a flight state and a base station state, where the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and a working state, and further includes:
Determining a predicted flight path of the aircraft based on the flight location, the flight speed, and the flight altitude;
and determining a first starting point of current switching and a second starting point of next switching according to the predicted flight route and the coverage state, and determining the current switching period according to the first starting point, the second starting point and the flight state.
Optionally, the determining, at the starting time of the switching period, the base station with the highest predicted link strength as the target base station according to the flight position, the flight speed, the flight altitude, the distribution position and the working state includes:
Determining the starting moment of current switching according to the first starting point and the flight state;
and predicting the link strength of the base station with the coverage state meeting the preset coverage condition according to the predicted flight route, and taking the base station with the highest predicted link strength as the target base station.
Optionally, the determining, in the switching period, a switching time according to the main communication link state and the backup communication link state, and taking, as a main link, a communication link established with the target base station at the switching time includes:
detecting whether the backup communication link state meets a preset switching condition when the main communication link state is in a disconnected state and the backup communication link state is in a connected state;
and when the backup communication link state meets the switching condition, establishing a communication link with the target base station, and taking the communication link established with the target base station as a main link at the switching moment.
Optionally, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, including:
Transmitting the flight data in the switching period to the target base station through the main link;
And receiving backhaul data transmitted by the target base station in the switching period through the main link.
Optionally, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, and then includes:
When the coverage state of one target base station meets the coverage condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
And when the coverage state of one target base station does not meet the coverage condition, forwarding the flight data and sending the return data to the aircraft by adopting different target base stations.
Optionally, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, and then further includes:
When the backup communication link state meets the switching condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
and when the state of the backup communication link does not meet the switching condition, forwarding the flight data by adopting different target base stations and sending the return data to the aircraft.
The invention also provides a communication link dynamic configuration device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the communication link dynamic configuration method according to any one of the above steps when being executed by the processor.
The invention also provides a computer readable storage medium, the computer readable storage medium stores a communication link dynamic configuration program, and when the communication link dynamic configuration program is executed by a processor, the steps of the communication link dynamic configuration method according to any one of the above steps are realized.
The communication link dynamic configuration method, the communication link dynamic configuration device and the computer readable storage medium are implemented, a switching time of a communication link of an aircraft is determined according to a current communication state, a flight state and a base station state in the flight process of the aircraft, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight altitude, the base station state comprises a distribution position and a working state, a base station with highest predicted link strength is determined according to the flight position, the flight speed, the flight altitude, the distribution position and the working state at the starting time of the switching time to serve as a target base station, the switching time is determined according to the main communication link state and the backup communication link state in the switching time, the communication link established with the target base station serves as a main link, and flight data in the switching time are transmitted to the target base station through the main link so that the target base station forwards the flight data to a preset server. The high-efficiency stable communication link dynamic configuration scheme is realized, the transmission stability and reliability of the aircraft to flight data are greatly improved, and the flight safety is effectively ensured.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a first flow chart of a method for dynamically configuring a communication link in accordance with the present invention;
FIG. 2 is a second flowchart of the communication link dynamic configuration method of the present invention;
FIG. 3 is a third flow chart of the communication link dynamic configuration method of the present invention;
FIG. 4 is a fourth flow chart of a method of dynamic configuration of a communication link according to the present invention;
FIG. 5 is a fifth flowchart of a method for dynamically configuring a communication link according to the present invention;
FIG. 6 is a sixth flowchart of a communication link dynamic configuration method of the present invention;
FIG. 7 is a seventh flowchart of a communication link dynamic configuration method of the present invention;
FIG. 8 is an eighth flowchart of the communication link dynamic configuration method of the present invention;
fig. 9 is a schematic diagram of data transmission of the communication link dynamic configuration method of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
Fig. 1 is a first flowchart of a communication link dynamic configuration method of the present invention. The embodiment provides a dynamic configuration method of a communication link, which comprises the following steps:
S1, determining a switching period of a communication link of an aircraft according to a current communication state, a flight state and a base station state in the flight process of the aircraft, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight height, and the base station state comprises a distribution position and a working state;
s2, at the starting moment of the switching period, determining a base station with highest predicted link strength as a target base station according to the flight position, the flight speed, the flight height, the distribution position and the working state;
s3, determining a switching time according to the main communication link state and the backup communication link state in the switching period, and taking a communication link established with the target base station as a main link at the switching time;
And S4, transmitting the flight data in the switching period to the target base station through the main link so that the target base station forwards the flight data to a preset server.
In the embodiment, firstly, a plurality of wireless communication base stations are arranged on the ground at the same time, so that the onboard terminal communication equipment selects a ground communication link with the best signal and sends data to the ground wireless base stations, and then the ground wireless base stations transparently forward the received data sent by the airplane terminal to a public network server. Therefore, in the flight process, the data link can be automatically switched, and the problem of losing connection between the aircraft and the ground is effectively guaranteed.
In this embodiment, as shown in fig. 9, a UAV (unmanned aerial vehicle) end automatically selects a link according to signal strength to transmit aircraft data to Station (wireless ground end, e.g., base Station), and the ground end forwards the data to a Server (Server) through a public network, optionally, backhaul data is reversely transmitted to the unmanned aerial vehicle according to the link where the data enters the Server.
In this embodiment, in order to further consider the higher flight rate of the aircraft and the more limited coverage of the base station, this embodiment will further define the mechanism for transmitting the flight data. Specifically, firstly, in the flight process of an aircraft, determining a switching time of a communication link of the aircraft according to a current communication state, a flight state and a base station state, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight altitude, the base station state comprises a distribution position and a working state, then, at the starting time of the switching time, a base station with highest predicted link strength is determined as a target base station according to the flight position, the flight speed, the flight altitude, the distribution position and the working state, then, in the switching time, the switching time is determined according to the main communication link state and the backup communication link state, and the communication link established with the target base station is used as a main link, and finally, flight data in the switching time is transmitted to the target base station through the main link to enable the target base station to forward the flight data to a preset server. Likewise, when the server selects a base station to send backhaul data to the aircraft, the base station for forwarding and the time of forwarding may also be determined in the same manner as described above.
The method has the advantages that in the flight process of the aircraft, the switching time of the communication link of the aircraft is determined according to the current communication state, the flight state and the base station state, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight height, the base station state comprises a distribution position and a working state, the base station with the highest predicted link strength is determined as a target base station according to the flight position, the flight speed, the flight height, the distribution position and the working state at the starting time of the switching time, the switching time is determined according to the main communication link state and the backup communication link state in the switching time, the communication link established with the target base station is used as the main link, and flight data in the switching time is transmitted to the target base station through the main link so that the target base station forwards the flight data to a preset server. The high-efficiency stable communication link dynamic configuration scheme is realized, the transmission stability and reliability of the aircraft to flight data are greatly improved, and the flight safety is effectively ensured.
Fig. 2 is a second flowchart of the dynamic configuration method of a communication link according to the present invention, in which during the flight of an aircraft, a switching period of the communication link of the aircraft is determined according to a current communication state, a flight state and a base station state, wherein the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and an operating state, and includes:
S11, dividing the effective areas of the base stations according to the distribution positions and the working states;
S12, determining the coverage state of the effective area to the flight area of the aircraft according to the flight position, the flight speed and the flight altitude.
Optionally, in this embodiment, the effective area of each base station is determined according to the distribution position of each base station and the working parameter of each base station.
Optionally, in this embodiment, the flight area of the aircraft is predicted according to the flight position, the flight speed and the flight altitude, and after the flight area is predicted, a coverage state of each effective area to the flight area is determined. For example, during flight, there are a plurality of active areas that are consecutive to cover the flight area at the current time in sequence.
Fig. 3 is a third flowchart of the dynamic configuration method of a communication link according to the present invention, where in the flight process of an aircraft, the switching period of the communication link of the aircraft is determined according to a current communication state, a flight state and a base station state, where the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and a working state, and further includes:
S13, determining a predicted flight route of the aircraft according to the flight position, the flight speed and the flight altitude;
s14, determining a first starting point of current switching and a second starting point of next switching according to the predicted flight route and the coverage state, and determining the current switching period according to the first starting point, the second starting point and the flight state.
Alternatively, in the present embodiment, a first intersection point of the flight path and the effective area is taken as a first start point, and a second intersection point of the flight path and the effective area is taken as a second start point.
Fig. 4 is a fourth flowchart of a dynamic configuration method of a communication link according to the present invention, based on the above embodiment, the determining, at the start time of the switching period, a base station with the highest predicted link strength as a target base station according to the flight position, the flight speed, the flight altitude, the distribution position, and the working state includes:
s21, determining the starting moment of current switching according to the first starting point and the flight state;
s22, predicting the link strength of the base station with the coverage state meeting the preset coverage condition according to the predicted flight route, and taking the base station with the highest predicted link strength as the target base station.
Optionally, in this embodiment, the first starting point is taken as a reference, and prediction is performed according to the current flight state, so as to obtain a starting time corresponding to the first starting point.
Alternatively, in this embodiment, the coverage condition may be set such that the aircraft leaves the active area of the previous base station and enters the active area of the next base station, i.e. the aircraft is still in the contiguous area of coverage of both base stations.
Fig. 5 is a fifth flowchart of a dynamic configuration method of a communication link according to the present invention, based on the above embodiment, the determining, during the switching period, a switching time according to the primary communication link state and the backup communication link state, and taking, at the switching time, a communication link established with the target base station as a primary link, includes:
S31, detecting whether the backup communication link state meets a preset switching condition when the main communication link state is in a disconnected state and the backup communication link state is in a connected state;
and S32, when the state of the backup communication link meets the switching condition, establishing a communication link with the target base station, and taking the communication link established with the target base station as a main link at the switching moment.
Optionally, in this embodiment, the primary communication link and the backup communication link are implemented using different communication modules.
Alternatively, in the present embodiment, the above-described switching condition is determined according to the link quality of the backup communication link, for example, when the link quality of the backup communication link deteriorates to some extent, it is determined that the switching condition is satisfied.
Fig. 6 is a sixth flowchart of a communication link dynamic configuration method according to the present invention, based on the above embodiment, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, including:
S41, transmitting the flight data in the switching period to the target base station through the main link;
S42, receiving the backhaul data sent by the target base station in the switching period through the main link.
Optionally, in this embodiment, when the transmission of the flight data in the switching period is not completed, the flight data in the current switching period and the flight data not transmitted in the previous switching period are transmitted to the target base station together through the main link of the next base station.
Fig. 7 is a seventh flowchart of a method for dynamically configuring a communication link according to the present invention, based on the above embodiment, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, and then includes:
s51, when the coverage state of one target base station meets the coverage condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
And S52, when the coverage state of one target base station does not meet the coverage condition, forwarding the flight data by adopting different target base stations and sending the return data to the aircraft.
Fig. 8 is an eighth flowchart of a communication link dynamic configuration method according to the present invention, based on the above embodiment, the transferring the flight data in the switching period to the target base station through the main link, so that the target base station forwards the flight data to a preset server, and then further includes:
s53, when the state of the backup communication link meets the switching condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
And S54, when the state of the backup communication link does not meet the switching condition, forwarding the flight data by adopting different target base stations and sending the return data to the aircraft.
Based on the above embodiment, the present invention also proposes a communication link dynamic configuration device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the communication link dynamic configuration method as set forth in any one of the above when executed by the processor.
It should be noted that the above device embodiments and method embodiments belong to the same concept, the specific implementation process of the device embodiments is detailed in the method embodiments, and technical features in the method embodiments are correspondingly applicable to the device embodiments, which are not repeated herein.
Based on the above embodiment, the present invention further provides a computer readable storage medium, where a communication link dynamic configuration program is stored, where the communication link dynamic configuration program, when executed by a processor, implements the steps of the communication link dynamic configuration method according to any one of the above embodiments.
It should be noted that the medium embodiment and the method embodiment belong to the same concept, the specific implementation process of the medium embodiment and the method embodiment are detailed, and technical features in the method embodiment are correspondingly applicable in the medium embodiment, which is not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (10)
1. A method for dynamically configuring a communication link, the method comprising:
In the flight process of an aircraft, determining a switching period of a communication link of the aircraft according to a current communication state, a flight state and a base station state, wherein the communication state comprises a main communication link state and a backup communication link state, the flight state comprises a flight position, a flight speed and a flight height, and the base station state comprises a distribution position and a working state;
At the starting time of the switching period, determining a base station with highest predicted link strength as a target base station according to the flight position, the flight speed, the flight height, the distribution position and the working state;
Determining a switching time according to the main communication link state and the backup communication link state in the switching time period, and taking a communication link established with the target base station as a main link at the switching time;
And transmitting the flight data in the switching period to the target base station through the main link so that the target base station forwards the flight data to a preset server.
2. The method according to claim 1, wherein the determining the switching period of the communication link of the aircraft according to the current communication state, the flight state and the base station state during the flight of the aircraft, wherein the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and a working state includes:
Dividing the distribution position and the working state to obtain the effective areas of the base stations;
and determining the coverage state of the effective area to the flight area of the aircraft according to the flight position, the flight speed and the flight altitude.
3. The method for dynamically configuring a communication link according to claim 2, wherein during the flight of the aircraft, the switching period of the communication link of the aircraft is determined according to a current communication state, a flight state and a base station state, wherein the communication state includes a main communication link state and a backup communication link state, the flight state includes a flight position, a flight speed and a flight altitude, and the base station state includes a distribution position and a working state, and further including:
Determining a predicted flight path of the aircraft based on the flight location, the flight speed, and the flight altitude;
and determining a first starting point of current switching and a second starting point of next switching according to the predicted flight route and the coverage state, and determining the current switching period according to the first starting point, the second starting point and the flight state.
4. The method for dynamically configuring a communication link according to claim 3, wherein said determining, at the start time of the switching period, the base station with the highest predicted link strength as the target base station according to the flight position, the flight speed, the flight altitude, the distribution position, and the operating state comprises:
Determining the starting moment of current switching according to the first starting point and the flight state;
and predicting the link strength of the base station with the coverage state meeting the preset coverage condition according to the predicted flight route, and taking the base station with the highest predicted link strength as the target base station.
5. The method according to claim 4, wherein determining a switching time according to the primary communication link state and the backup communication link state in the switching period, and using the communication link established with the target base station as the primary link at the switching time, comprises:
detecting whether the backup communication link state meets a preset switching condition when the main communication link state is in a disconnected state and the backup communication link state is in a connected state;
and when the backup communication link state meets the switching condition, establishing a communication link with the target base station, and taking the communication link established with the target base station as a main link at the switching moment.
6. The method according to claim 5, wherein the transferring the flight data in the switching period to the target base station through the main link so that the target base station forwards the flight data to a preset server includes:
Transmitting the flight data in the switching period to the target base station through the main link;
And receiving backhaul data transmitted by the target base station in the switching period through the main link.
7. The method according to claim 6, wherein the transferring the flight data in the handover period to the target base station through the main link so that the target base station forwards the flight data to a preset server, and then comprises:
When the coverage state of one target base station meets the coverage condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
And when the coverage state of one target base station does not meet the coverage condition, forwarding the flight data and sending the return data to the aircraft by adopting different target base stations.
8. The method according to claim 7, wherein the transferring the flight data in the handover period to the target base station through the main link so that the target base station forwards the flight data to a preset server further comprises:
When the backup communication link state meets the switching condition, forwarding the flight data by adopting the same target base station and sending the return data to the aircraft;
and when the state of the backup communication link does not meet the switching condition, forwarding the flight data by adopting different target base stations and sending the return data to the aircraft.
9. A communication link dynamic configuration device, characterized in that the device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, implements the steps of the communication link dynamic configuration method according to any of claims 1 to 8.
10. A computer readable storage medium, wherein a communication link dynamic configuration program is stored on the computer readable storage medium, which when executed by a processor, implements the steps of the communication link dynamic configuration method according to any one of claims 1 to 8.
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| CN114026517A (en) * | 2020-06-30 | 2022-02-08 | 深圳市大疆创新科技有限公司 | Information processing method, unmanned aerial vehicle, server and storage medium |
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| US10952113B2 (en) * | 2017-09-05 | 2021-03-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Planned continuity of unmanned aerial vehicle (UAV) link connectivity in UAV traffic management systems |
| JP2020155999A (en) * | 2019-03-22 | 2020-09-24 | セコム株式会社 | Mobile communication device |
| CN114374512B (en) * | 2022-01-10 | 2023-01-10 | 梵迩佳智能电气有限公司 | Unmanned aerial vehicle communication method based on quantum strategy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454982A (en) * | 2016-10-19 | 2017-02-22 | 北京交通大学 | Link switching method and system in wireless communication network |
| CN114026517A (en) * | 2020-06-30 | 2022-02-08 | 深圳市大疆创新科技有限公司 | Information processing method, unmanned aerial vehicle, server and storage medium |
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