CN111680840A - Flight re-navigation method around dangerous weather - Google Patents
Flight re-navigation method around dangerous weather Download PDFInfo
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Abstract
The invention discloses a flight re-navigation method around dangerous weather, and belongs to the technical field of aviation safety. The method specifically comprises the steps of reading a weather radar map in real time, analyzing longitude and latitude, generating an FCA convex hull, calculating a flying-around route and the like. By using the method of the invention, the plan executable rate of air traffic operation can be effectively improved and the flight execution efficiency can be finally improved through the computer technology and the cooperative interaction of multiple users. When encountering severe weather, the airline can actively seek flight opportunities instead of passive waiting, so that the service quality and the operation result of the airline can be improved.
Description
Technical Field
The invention belongs to the technical field of aviation safety, and particularly relates to a flight re-navigation method around dangerous weather.
Technical Field
At present, the planned flight routes of flights are distributed according to fixed routes and empirical routes, the route routes between each city pair are basically fixed, the route of one city pair can be controlled by one or more sectors, and the flights can take off only when all the sectors can meet the flight conditions. If dangerous weather occurs in one or more sectors, the flight needs to wait for the weather to pass before it can take off. When dangerous weather exists on the air route, various factors need to be comprehensively considered to calculate the flight route suitable for flying, and the calculation complexity is insufficient by manpower. Thus, in general, dangerous weather is encountered, and the controller may leave the aircraft to pass by waiting for the weather effect, thereby causing flight delay or even cancellation.
Disclosure of Invention
Aiming at the technical problems, the invention provides a flight re-navigation method around dangerous weather, which can successfully solve the problems of flight delay, cancellation and the like caused by weather through information technology, data interaction, picture processing and algorithm analysis.
The invention comprises the following technical scheme:
a flight diversion method around dangerous weather specifically comprises the following steps:
(1) reading a weather radar chart in real time: reading a real-time weather radar map by adopting a picture acquisition technology;
(2) and (3) latitude and longitude analysis: acquiring longitude and latitude coordinates and influence degrees of a weather influence range by using a map technology;
(3) generating an FCA convex hull: generating a convex hull of a weather influence restricted area (FCA) using a convex hull algorithm;
(4) calculating a fly-by-flight path: and generating the shortest flight-surrounding dangerous weather re-navigation route by combining the shortest path algorithm.
According to the method, the dangerous weather is identified by analyzing the weather radar map, the recommended re-navigation route around the dangerous weather is given according to the flight planning flight route, and flight delay and cancellation conditions under the influence of the dangerous weather are reduced.
Alternatively, in the flight re-navigation method around dangerous weather, the picture collection is implemented by an HTTP method (GET/POST).
Optionally, in the flight re-navigation method around dangerous weather, the real-time reading of the weather radar map includes transparent processing and pixel analysis steps. And analyzing data such as pixels, colors and the like of the picture by using a picture analysis technology. Overlaying a weather radar map onto a map of the system for display through the transparent processing; and identifying and calculating the actual longitude and latitude of dangerous areas of different levels in the weather radar map through the pixel analysis processing.
As an optional mode, in the flight re-navigation method around dangerous weather, the transparent processing step specifically includes:
a. acquiring RGB values and alpha values of colors of a weather area;
b. and removing the RGB value and the alpha value of the non-weather area color in the weather radar map, thereby removing the background and only reserving the color area with weather influence.
As an optional mode, in the flight re-navigation method around dangerous weather, the pixel analysis step specifically includes:
a. fitting the weather radar map with the map according to the size of the weather radar map, and finding the coordinate of the center point and the zoom level of the map;
b. calculating the actual longitude and latitude of the pixel point by using the distance from the pixel point to the central point;
c. and acquiring the longitude and latitude area of the weather of each grade according to different weather color values of different grades.
Alternatively, in the flight re-voyage method around dangerous weather, the convex hull algorithm in the step (3) is implemented by using ST _ covexhull method of postgreSQL.
Alternatively, in the flight re-voyage method around dangerous weather, the convex hull of the weather influence limited area (FCA) is generated in the step (3) through the safe distance input by the user and the convex hull algorithm. The safety distance can be a preset value fixed by a system, and can also be flexibly adjusted by a user according to the actual situation, and the optional range is as follows: 0-50km, preferably: and 20 km.
As an alternative, in the flight re-navigating method around the dangerous weather, in the step (4), according to the start-stop re-navigating point and the flight planned flight path input by the user, the re-navigating route around the dangerous weather is generated by using a shortest path algorithm.
Optionally, in the flight re-navigating method around dangerous weather, the re-navigating route index calculated in step (4) includes a flying distance and a transverse interval.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention has the beneficial effects that:
by using the method of the invention, the plan executable rate of air traffic operation can be effectively improved and the flight execution efficiency can be finally improved through the computer technology and the cooperative interaction of multiple users. When encountering severe weather, the airline can actively seek flight opportunities instead of passive waiting, so that the service quality and the operation result of the airline can be improved.
Description of the drawings:
FIG. 1 is a flow chart of a flight re-navigation method around dangerous weather according to the present invention;
fig. 2 is an application effect diagram of the flight diversion method around dangerous weather in embodiment 1 of the present invention;
fig. 3 is an application effect diagram of the flight diversion method around dangerous weather in embodiment 2 of the present invention; .
The specific implementation mode is as follows:
the above-mentioned contents of the present invention will be further described in detail by the following specific embodiments of examples. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. Any modification made without departing from the spirit and principle of the present invention and equivalent replacement or improvement made by the common knowledge and conventional means in the field shall be included in the protection scope of the present invention.
Example 1
This example illustrates the method of the present invention in terms of an airliner flight route from west ampere to zhhai at 20 days 15-16 of month 5/2020. In the time period, severe weather appears in the airspace of Chongqing equal places where the flight path passes. Flight diversion around dangerous weather was performed according to the following steps (as shown in fig. 1):
(1) reading the latest weather radar map data in real time through a picture acquisition program, analyzing pictures, and acquiring longitude and latitude and influence degree of national weather influence ranges;
(2) generating a convex hull of a weather influence restricted area (FCA) through a user-input safe distance (20km) and a convex hull algorithm;
(3) generating a re-navigation route around dangerous weather by using a shortest path algorithm according to a start-stop re-navigation point and a flight planning flight path input by a user;
(4) calculating indexes such as flight distance, transverse interval and the like of the re-navigating route to assist a user in decision making;
(5) the airline user can apply for the re-navigation route to the air traffic control through the cooperation module;
(6) the air traffic control system can be used for auditing and checking the application of an airline company.
The result is shown in fig. 2, the newly designed airline by the above method successfully bypasses the severe weather area, and the originally planned flight distance of the flight: 1638km, flying around distance: 1684 km; the maximum lateral separation is 71 km. .
Example 2
This example illustrates the method of the present invention in terms of an airliner from Jinan to Macau, hours 9-10, 28.4.2019. In the time period, severe weather occurs in the airspace of places such as horse parks, joint fertilizers, Wuhan and the like where the aeronautical lines pass. Flight diversion around dangerous weather was performed according to the following steps (as shown in fig. 1):
(1) reading the latest weather radar map data in real time through a picture acquisition program, analyzing pictures, and acquiring longitude and latitude and influence degree of national weather influence ranges;
(2) generating a convex hull of a weather influence restricted area (FCA) through a safe distance (30km) input by a user and a convex hull algorithm;
(3) generating a re-navigation route around dangerous weather by using a shortest path algorithm according to a start-stop re-navigation point and a flight planning flight path input by a user;
(4) calculating indexes such as flight distance, transverse interval and the like of the re-navigating route to assist a user in decision making;
(5) the airline user can apply for the re-navigation route to the air traffic control through the cooperation module;
(6) the air traffic control system can be used for auditing and checking the application of an airline company.
The result is that the newly designed airlines, as shown in FIG. 3, successfully bypass the severe weather areas by the method described above. Flight original planned flight distance: 1724km, flying distance after flight: 1768.7 km; the maximum lateral separation is 71.5 km.
The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, not limiting; those skilled in the art will appreciate that many variations, modifications, and even equivalent variations are possible within the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A flight re-navigation method around dangerous weather is characterized by comprising the following steps:
(1) reading a weather radar chart in real time;
(2) and (3) latitude and longitude analysis: acquiring longitude and latitude coordinates and an influence degree of a weather influence range;
(3) generating an FCA convex hull: generating a convex hull of a weather influence restricted area (FCA) using a convex hull algorithm;
(4) calculating a fly-by-flight path: and generating the shortest flight-surrounding dangerous weather re-navigation route by combining the shortest path algorithm.
2. The method for flight re-voyage around dangerous weather of claim 1, wherein the real-time reading of the weather radar map comprises the steps of transparency processing and pixel resolution.
3. The flight re-voyage method around dangerous weather according to claim 2, wherein the transparent processing step specifically comprises:
a. acquiring RGB values and alpha values of colors of a weather area;
b. and removing the RGB value and the alpha value of the non-weather area color in the weather radar map, thereby removing the background and only reserving the color area with weather influence.
4. The flight re-voyage method around dangerous weather of claim 2, wherein the pixel analyzing step specifically comprises:
a. fitting the weather radar map with the map according to the size of the weather radar map, and finding the coordinate of the center point and the zoom level of the map;
b. calculating the actual longitude and latitude of the pixel point by using the distance from the pixel point to the central point;
c. and acquiring the longitude and latitude area of the weather of each grade according to different weather color values of different grades.
5. The method for redirecting flights around dangerous weather according to claim 1, wherein the convex hull algorithm in step (3) is implemented by ST _ converxhull method of postgreSQL.
6. The method of navigating around dangerous weather flights according to claim 1, characterized in that in step (3) the convex hull of the weather effect restricted area (FCA) is generated by a user entered safe distance and convex hull algorithm.
7. The method of redirecting flights around dangerous weather according to claim 6, wherein the safe distance is selectable in the range of 0-50 km.
8. The method of redirecting flights around dangerous weather according to claim 6, wherein the safe distance is selectable in the range of 20 km.
9. The flight re-voyage method around flying dangerous weather as claimed in claim 1, wherein in step (4), the re-voyage route around flying dangerous weather is generated by using shortest path algorithm according to the user input starting and ending re-voyage point and flight planning flight path.
10. The method for redirecting flights around dangerous weather according to claim 1, wherein the re-navigating route index calculated in the step (4) comprises flight distance and transverse interval.
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| CN202010519624.XA CN111680840B (en) | 2020-06-09 | 2020-06-09 | Flight diversion method around flying dangerous weather |
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| CN202010519624.XA CN111680840B (en) | 2020-06-09 | 2020-06-09 | Flight diversion method around flying dangerous weather |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593306A (en) * | 2021-08-13 | 2021-11-02 | 中国民航大学 | Scattered-point thunderstorm dangerous weather re-voyage method based on safety |
Citations (4)
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| US7702427B1 (en) * | 2004-07-30 | 2010-04-20 | The United States Of America As Represented By The National Aeronautics And Space Administration (Nasa) | Air traffic management evaluation tool |
| CN103456191A (en) * | 2013-08-26 | 2013-12-18 | 合肥飞友网络科技有限公司 | Method and system for obtaining airway weather radar chart |
| CN106323295A (en) * | 2016-08-29 | 2017-01-11 | 中国船舶重工集团公司第七0九研究所 | Method for diverting aircraft under dangerous weather conditions on basis of weather radar data |
| CN107830864A (en) * | 2017-11-01 | 2018-03-23 | 飞友科技有限公司 | A kind of aircarrier aircraft bad weather is diversion route planning system and method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7702427B1 (en) * | 2004-07-30 | 2010-04-20 | The United States Of America As Represented By The National Aeronautics And Space Administration (Nasa) | Air traffic management evaluation tool |
| CN103456191A (en) * | 2013-08-26 | 2013-12-18 | 合肥飞友网络科技有限公司 | Method and system for obtaining airway weather radar chart |
| CN106323295A (en) * | 2016-08-29 | 2017-01-11 | 中国船舶重工集团公司第七0九研究所 | Method for diverting aircraft under dangerous weather conditions on basis of weather radar data |
| CN107830864A (en) * | 2017-11-01 | 2018-03-23 | 飞友科技有限公司 | A kind of aircarrier aircraft bad weather is diversion route planning system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593306A (en) * | 2021-08-13 | 2021-11-02 | 中国民航大学 | Scattered-point thunderstorm dangerous weather re-voyage method based on safety |
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