CN111680840B - Flight diversion method around flying dangerous weather - Google Patents
Flight diversion method around flying dangerous weather Download PDFInfo
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- CN111680840B CN111680840B CN202010519624.XA CN202010519624A CN111680840B CN 111680840 B CN111680840 B CN 111680840B CN 202010519624 A CN202010519624 A CN 202010519624A CN 111680840 B CN111680840 B CN 111680840B
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Abstract
The invention discloses a flight diversion method around flying dangerous weather, and belongs to the technical field of aviation safety. The method specifically comprises the steps of real-time reading of a weather radar chart, longitude and latitude analysis, generation of an FCA convex hull, calculation of a winding flight path and the like. The method can effectively improve the plan executable rate of the air traffic operation and finally improve the flight execution efficiency through the cooperative interaction of the computer technology and the multiparty users. When the airline company encounters severe weather, the airline company can more actively seek flight opportunities instead of passive waiting, and the service quality and operation result of the airline company can be improved.
Description
Technical Field
The invention belongs to the technical field of aviation safety, and particularly relates to a flight diversion method around flying dangerous weather.
Technical Field
The planned flight route of the present flight is distributed according to a fixed route and an experience route, the route between each city pair is basically fixed, one city pair route is controlled by one or more sectors, and the flight can take off when all sectors can meet the flight condition. If there are dangerous weather 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 airlines, various factors need to be comprehensively considered to calculate the airlines suitable for flying, and the complexity of calculation is not enough for manpower. Thus, in general, dangerous weather is encountered and the controller will let the aircraft wait for the weather to pass, resulting in delayed or even cancelled flights.
Disclosure of Invention
Aiming at the technical problems, the invention provides a flight diversion method around flying dangerous weather, which can successfully solve the problems of flight delay, cancellation and the like caused by weather reasons through information technology, data interaction, picture processing and algorithm analysis.
The invention comprises the following technical scheme:
a flight diversion method around flying dangerous weather specifically comprises the following steps:
(1) And (3) weather radar map real-time reading: reading a real-time weather radar chart by adopting a picture acquisition technology;
(2) Longitude and latitude analysis: acquiring longitude and latitude coordinates and influence degree of a weather influence range by using a map technology;
(3) Generating an FCA convex hull: generating a convex hull of a weather-affected limited area (FCA) by using a convex hull algorithm;
(4) Calculating a winding flight path: and generating a shortest detour dangerous weather modified navigation path by combining a shortest path algorithm.
According to the method, the weather radar diagram is analyzed, dangerous weather is identified, a suggested diversion route around the dangerous weather is given according to the flight route of the flight plan, and the flight delay and cancellation conditions under the influence of the dangerous weather are reduced.
Alternatively, in the flight diversion method around flying dangerous weather, the picture acquisition is realized by a HTTP method (GET/POST).
Alternatively, in the flight diversion method of the around-flight dangerous weather, the weather radar map real-time reading includes transparent processing and pixel analysis steps. And analyzing the data such as pixels, colors and the like of the picture through a picture analysis technology. Superposing the weather radar map on a map of the system for display through the transparent processing; and identifying and calculating the actual longitudes and latitudes of dangerous areas with different grades in the weather radar chart through the pixel analysis processing.
Optionally, in the flight diversion method around the flying dangerous weather, the transparent processing step specifically includes:
a. acquiring RGB values and alpha values of colors of a weather area;
b. and removing RGB values and alpha values of the colors of the non-weather areas in the weather radar chart, so that the background is removed, and only the color areas with weather influence are reserved.
Optionally, in the flight diversion method around the flying dangerous weather, the pixel analysis step specifically includes:
a. according to the size of the weather radar map, attaching the weather radar map to the map, and finding out the center point coordinates 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 center point;
c. and acquiring longitude and latitude areas of weather of each level according to different weather color values of different levels.
Alternatively, in the flight diversion method around the flying dangerous weather, the convex hull algorithm in the step (3) is implemented by using the st_convexhull method of postgreSQL.
Alternatively, in the above flight diversion method around flying dangerous weather, in the step (3), the convex hull of the weather-restricted area (FCA) is generated by the safety distance and the convex hull algorithm input by the user. The safe distance can be a preset value fixed by the system, and can be flexibly adjusted by a user according to actual conditions, and the optional range is as follows: 0-50km, preferably: 20km.
Alternatively, in the above flight diversion method for the around-flight dangerous weather, in the step (4), the shortest path algorithm is used to generate the diversion route for the around-flight dangerous weather according to the start/stop diversion point and the flight planned flight path input by the user.
Alternatively, in the above flight diversion method around the flying dangerous weather, the diversion index calculated in the step (4) includes a flight distance and a lateral interval.
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
The invention has the beneficial effects that:
the method can effectively improve the plan executable rate of the air traffic operation and finally improve the flight execution efficiency through the cooperative interaction of the computer technology and the multiparty users. When the airline company encounters severe weather, the airline company can more actively seek flight opportunities instead of passive waiting, and the service quality and operation result of the airline company can be improved.
Description of the drawings:
FIG. 1 is a flow chart of a method of flight diversion around flying hazardous weather according to the present invention;
FIG. 2 is a diagram showing the application effect of the flight diversion method around flying dangerous weather according to the embodiment 1 of the present invention;
FIG. 3 is a diagram showing the application effect of the flight diversion method around flying dangerous weather according to the embodiment 2 of the present invention; .
The specific embodiment is as follows:
the above-described aspects of the present invention will be described in further detail below by way of specific embodiments of the present invention. It should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Any modifications, equivalent substitutions or improvements made by those skilled in the art, without departing from the spirit and principles of the present invention, should be included within the scope of the present invention.
Example 1
This example illustrates the method of the present invention using the airlines from western to nacre for 5 months, 20 days, 2020, 15-16 hours. In the period, severe weather occurs in a space domain such as Chongqing and the like where the route passes. The flight diversion around the flying hazardous weather is performed as follows (as shown in fig. 1):
(1) The latest weather radar image data are read in real time through an image acquisition program, the images are analyzed, and the longitude and latitude and the influence degree of the national weather influence range are obtained;
(2) Generating a convex hull of a weather-affected limited area (FCA) through a safe distance (20 km) input by a user and a convex hull algorithm;
(3) Generating a flight path changing around the flying dangerous weather by using a shortest path algorithm according to the start-stop flight changing point and the flight plan flight path input by a user;
(4) Calculating indexes such as flight distance, transverse interval and the like of the navigation path, and assisting a user in decision;
(5) The airline company user can apply for the navigation changing route to the air traffic control through the cooperation module;
(6) The air traffic control can audit and reply the application of the airlines.
As a result, as shown in fig. 2, the newly designed route by the method successfully bypasses the severe weather area, and the flight is originally planned to fly for a distance: 1638km, flight distance after winding: 1684km; the maximum transverse separation is 71km. .
Example 2
This example illustrates the method of the present invention using airlines from taxian to australia at 2019, 4, 28, 9-10 hours. In the period, severe weather occurs in land airspace such as standing-horse stores, fertilizer combination, and Wuhan, etc. where the airlines pass. The flight diversion around the flying hazardous weather is performed as follows (as shown in fig. 1):
(1) The latest weather radar image data are read in real time through an image acquisition program, the images are analyzed, and the longitude and latitude and the influence degree of the national weather influence range are obtained;
(2) Generating a convex hull of a weather-affected limited area (FCA) through a safe distance (30 km) input by a user and a convex hull algorithm;
(3) Generating a flight path changing around the flying dangerous weather by using a shortest path algorithm according to the start-stop flight changing point and the flight plan flight path input by a user;
(4) Calculating indexes such as flight distance, transverse interval and the like of the navigation path, and assisting a user in decision;
(5) The airline company user can apply for the navigation changing route to the air traffic control through the cooperation module;
(6) The air traffic control can audit and reply the application of the airlines.
As a result, as shown in fig. 3, the newly designed route by the above method successfully bypasses the severe weather region. Flight original planned flight distance: 1724km, post-flight around: 1768.7km; the maximum transverse separation is 71.5km.
The foregoing description of the preferred embodiments of the present invention is merely illustrative, and not restrictive, of the invention. It will be appreciated by those skilled in the art that many variations, modifications and even equivalent changes may be made thereto, within the spirit and scope of the invention as defined in the appended claims, but are to be accorded the full scope of the invention.
Claims (1)
1. The flight diversion method around flying dangerous weather is characterized by comprising the following steps:
(1) And (3) weather radar map real-time reading: reading a real-time weather radar chart by adopting a picture acquisition technology, and analyzing pixel and color data of the picture by adopting a picture analysis technology, wherein the picture acquisition is realized by a GET/POST method in an HTTP method; the method specifically comprises a transparent processing step and a pixel analysis step, wherein the weather radar map is superimposed on a map of a system for display through the transparent processing step, and the actual longitude and latitude of dangerous areas with different levels in the weather radar map are identified and calculated through the pixel analysis step;
the transparent processing step specifically comprises the following steps:
a. acquiring RGB values and alpha values of colors of a weather area;
b. removing RGB values and alpha values of the colors of the non-weather areas in the weather radar chart, so that the background is removed, and only the color areas with weather influence are reserved;
the pixel analysis step specifically includes:
a. according to the size of the weather radar map, attaching the weather radar map to the map, and finding out the center point coordinates 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 center point;
c. acquiring longitude and latitude areas of weather of each level according to different weather color values of different levels;
(2) Longitude and latitude analysis: acquiring longitude and latitude coordinates and influence degree of a national weather influence range by using a map technology;
(3) Generating an FCA convex hull: generating a convex hull of a weather-affected limited area (FCA) through a safety distance and a convex hull algorithm input by a user, wherein the convex hull algorithm is realized by using an ST_ConvexHull method of postgreSQL, and the safety distance is 20-30km;
(4) Calculating a winding flight path: and generating a shortest detour dangerous weather diversion path by combining a shortest path algorithm, and generating the diversion path of the detour dangerous weather by using the shortest path algorithm according to a departure and stop diversion point and a flight plan flight path which are input by a user, wherein the diversion path calculation indexes comprise a flight distance and a 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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| CN113593306B (en) * | 2021-08-13 | 2022-05-24 | 中国民航大学 | Scattered-point thunderstorm dangerous weather re-voyage method based on safety |
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 |
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- 2020-06-09 CN CN202010519624.XA patent/CN111680840B/en active Active
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 |
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