阅读说明：本技术 飞机尾涡识别方法、装置、可读介质及电子设备 (Airplane wake vortex identification method and device, readable medium and electronic equipment ) 是由 潘卫军 段英捷 于 2020-04-22 设计创作，主要内容包括：本发明涉及一种飞机尾涡识别方法、装置、可读介质及电子设备。该飞机尾涡识别方法,基于深度学习技术,采用预设深度学习模型对滤除了背景大气风场影响的第一待处理风场分布图进行处理,识别所述第一待处理风场分布图中是否包含尾涡,及在含有尾涡时输出表征至少一只尾涡的位置坐标。本发明提供的技术方案,基于深度学习技术,使机器自动学习到尾涡特征,通过大量图像集训练,能够自动识别尾涡,且具有较高的尾流识别率和较低虚警率；且用于被识别的图像为滤除了背景大气风场影响的第一待处理风场分布图,考虑了气象环境变化因素,提高了尾涡的匹配度和识别率。(The invention relates to an aircraft wake vortex identification method, an aircraft wake vortex identification device, a readable medium and electronic equipment. The aircraft wake vortex identification method is based on a deep learning technology, a preset deep learning model is adopted to process a first wind field distribution graph to be processed, wherein the first wind field distribution graph is filtered of influences of a background atmosphere wind field, whether wake vortexes are included in the first wind field distribution graph to be processed is identified, and position coordinates representing at least one wake vortex are output when the wake vortexes are included. According to the technical scheme provided by the invention, based on a deep learning technology, the machine automatically learns the wake vortex characteristics, and can automatically identify the wake vortex through training of a large number of image sets, and the wake vortex identification rate is higher and the false alarm rate is lower; and the image used for being identified is a first wind field distribution map to be processed, which filters the influence of the background atmospheric wind field, and the meteorological environment variation factor is considered, so that the matching degree and the identification rate of the wake vortex are improved.)

1. A method of identifying wake vortexes in an aircraft, the method comprising:

obtaining a first wind field distribution map to be processed according to the first target wind field data and the background wind field data;

and inputting the first wind field distribution graph to be processed into a preset deep learning model to obtain a first recognition result output by the preset deep learning model, wherein the first recognition result comprises wake vortexes or no wake vortexes, and when the first recognition result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented by regression output.

2. The aircraft wake vortex identification method according to claim 1, wherein the step of obtaining a first to-be-processed wind field distribution map based on the first target wind field data and the background wind field data comprises:

scanning a first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to obtain first target wind field data;

scanning a second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to obtain background wind field data;

and filtering out a background atmosphere wind field superposed in the first target wind field data according to the background wind field data to obtain the first wind field distribution map to be processed.

3. The aircraft wake vortex identification method according to claim 1, wherein the preset deep learning model is trained by:

labeling a wind field distribution image containing wake vortexes in a wind field distribution image set according to a labeling instruction input by a user aiming at the wind field distribution image set, wherein the labeling instruction is a position coordinate labeling at least one wake vortex;

and training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

4. An aircraft wake vortex identification method according to any one of claims 1-3, characterized in that the method further comprises:

obtaining a second wind field distribution map to be processed according to the second target wind field data and the background wind field data;

inputting the second wind field distribution map to be processed into a preset deep learning model to obtain a second identification result output by the preset deep learning model, wherein the second identification result comprises wake vortexes or no wake vortexes, and when the second identification result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented by regression output;

and under the condition that the first recognition result is different from the second recognition result, marking the first wind field distribution graph to be processed and the second wind field distribution graph to be recognized so as to remind a user of re-recognizing the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

5. An aircraft wake vortex identification device, characterized in that the aircraft wake vortex identification device comprises:

the first wind field distribution graph acquisition module is used for acquiring a first wind field distribution graph to be processed according to the first target wind field data and the background wind field data;

the first recognition module is used for inputting the first wind field distribution diagram to be processed into a preset deep learning model to obtain a first recognition result output by the preset deep learning model, wherein the first recognition result comprises wake vortexes or no wake vortexes, and when the first recognition result is the wake vortexes, the position coordinates of at least one wake vortex are represented through regression output.

6. The aircraft wake vortex identification device according to claim 5, wherein the first to-be-processed wind field profile acquisition module comprises:

the first target wind field data acquisition submodule is used for scanning a first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to acquire first target wind field data;

the background wind field data acquisition submodule is used for scanning a second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to acquire background wind field data;

and the background wind field filtering submodule is used for filtering a background atmosphere wind field superposed in the first target wind field data according to the background wind field data to obtain the first wind field distribution map to be processed.

7. The aircraft wake vortex identification device according to claim 5, wherein the preset deep learning model is trained by:

labeling a wind field distribution image containing wake vortexes in a wind field distribution image set according to a labeling instruction input by a user aiming at the wind field distribution image set, wherein the labeling instruction is a position coordinate labeling at least one wake vortex;

and training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

8. An aircraft wake vortex identification device according to any one of claims 5 to 7, wherein the device further comprises:

the second wind field distribution map acquisition module is used for acquiring a second wind field distribution map to be processed according to second target wind field data and background wind field data;

the second identification module is used for inputting the second wind field distribution map to be processed into a preset deep learning model to obtain a second identification result output by the preset deep learning model, wherein the second identification result comprises wake vortexes or no wake vortexes, and when the second identification result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented through regression output;

and the marking module is used for marking the first wind field distribution graph to be processed and the second wind field distribution graph to be processed as the wind field distribution graphs to be recognized under the condition that the first recognition result and the second recognition result are different, so as to remind a user of re-recognizing the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.

10. An electronic device, comprising:

a storage device having a computer program stored thereon;

processing means for executing the computer program in the storage means to carry out the steps of the method according to any one of claims 1 to 4.

Technical Field

The invention relates to the technical field of aviation, in particular to an aircraft wake vortex identification method, an aircraft wake vortex identification device, a readable medium and electronic equipment.

Background

At present, the domestic detection and identification method for the wake flow of the civil aviation airliner is mainly based on the Doppler laser radar detection principle, combines the aerodynamic mechanism of the aircraft wake vortex, establishes a radial velocity standard model of the aircraft wake vortex, and adopts a method of a waveform matching theory, namely a wake flow identification algorithm based on a sliding window thought. Through the verification and analysis of actual measurement data of the Doppler laser radar at an airport, the method has low wake flow identification rate and high false alarm rate, and has almost no engineering value in practical application. And because meteorological environment variation factors are not considered in modeling, the matching degree and the recognition rate of the meteorological environment are reduced.

Disclosure of Invention

The invention aims to provide an aircraft wake vortex identification method, an aircraft wake vortex identification device, a readable medium and electronic equipment, and aims to solve the problems that in the related art, the wake vortex identification rate is low, the false alarm rate is high, and meteorological environment change factors are not considered.

In order to achieve the above object, an embodiment of the present invention provides an aircraft wake vortex identification method, where the method includes:

obtaining a first wind field distribution map to be processed according to the first target wind field data and the background wind field data;

and inputting the first wind field distribution graph to be processed into a preset deep learning model to obtain a first recognition result output by the preset deep learning model, wherein the first recognition result comprises wake vortexes or no wake vortexes, and when the first recognition result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented by regression output.

Optionally, the step of obtaining a first wind field distribution map to be processed according to the first target wind field data and the background wind field data includes:

scanning a first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to obtain first target wind field data;

scanning a second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to obtain background wind field data;

and filtering out a background atmosphere wind field superposed in the first target wind field data according to the background wind field data to obtain the first wind field distribution map to be processed.

Optionally, the preset deep learning model is obtained by training in the following manner:

labeling a wind field distribution image containing wake vortexes in a wind field distribution image set according to a labeling instruction input by a user aiming at the wind field distribution image set, wherein the labeling instruction is a position coordinate labeling at least one wake vortex;

and training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

Optionally, the method further comprises:

obtaining a second wind field distribution map to be processed according to the second target wind field data and the background wind field data;

inputting the second wind field distribution map to be processed into a preset deep learning model to obtain a second identification result output by the preset deep learning model, wherein the second identification result comprises wake vortexes or no wake vortexes, and when the second identification result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented by regression output;

and under the condition that the first recognition result is different from the second recognition result, marking the first wind field distribution graph to be processed and the second wind field distribution graph to be recognized so as to remind a user of re-recognizing the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

The embodiment of the invention also provides an aircraft wake vortex identification device, which comprises:

the first wind field distribution graph acquisition module is used for acquiring a first wind field distribution graph to be processed according to the first target wind field data and the background wind field data;

the first recognition module is used for inputting the first wind field distribution diagram to be processed into a preset deep learning model to obtain a first recognition result output by the preset deep learning model, wherein the first recognition result comprises wake vortexes or no wake vortexes, and when the first recognition result is the wake vortexes, the position coordinates of at least one wake vortex are represented through regression output.

Optionally, the first to-be-processed wind field distribution map obtaining module includes:

the first target wind field data acquisition submodule is used for scanning a first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to acquire first target wind field data;

the background wind field data acquisition submodule is used for scanning a second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to acquire background wind field data;

and the background wind field filtering submodule is used for filtering a background atmosphere wind field superposed in the first target wind field data according to the background wind field data to obtain the first wind field distribution map to be processed.

Optionally, the preset deep learning model is obtained by training in the following manner:

labeling a wind field distribution image containing wake vortexes in a wind field distribution image set according to a labeling instruction input by a user aiming at the wind field distribution image set, wherein the labeling instruction is a position coordinate labeling at least one wake vortex;

and training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

Optionally, the apparatus further comprises:

the second wind field distribution map acquisition module is used for acquiring a second wind field distribution map to be processed according to second target wind field data and background wind field data;

the second identification module is used for inputting the second wind field distribution map to be processed into a preset deep learning model to obtain a second identification result output by the preset deep learning model, wherein the second identification result comprises wake vortexes or no wake vortexes, and when the second identification result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented through regression output;

and the marking module is used for marking the first wind field distribution graph to be processed and the second wind field distribution graph to be processed as the wind field distribution graphs to be recognized under the condition that the first recognition result and the second recognition result are different, so as to remind a user of re-recognizing the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the above-mentioned method.

An embodiment of the present invention further provides an electronic device, including:

a storage device having a computer program stored thereon;

processing means for executing the computer program in the storage means to implement the steps of the above method.

Through the technical scheme, based on the deep learning technology, the first wind field distribution graph to be processed, with the influence of the background atmospheric wind field filtered out, is processed by the aid of the preset deep learning model, whether wake vortexes are contained in the first wind field distribution graph to be processed or not is identified, and the position coordinates representing at least one wake vortex are output when the wake vortexes are contained. According to the technical scheme provided by the invention, based on a deep learning technology, the machine automatically learns the wake vortex characteristics, and can automatically identify the wake vortex through training of a large number of image sets, and the wake vortex identification rate is higher and the false alarm rate is lower; and the image used for being identified is a first wind field distribution map to be processed, which filters the influence of the background atmospheric wind field, and the meteorological environment variation factor is considered, so that the matching degree and the identification rate of the wake vortex are improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a flowchart of an aircraft wake vortex identification method according to an embodiment of the present invention.

Fig. 2 is a flowchart illustrating the sub-steps of step S10 in fig. 1 according to an embodiment of the present invention.

FIG. 3 is a first wind field profile to be processed when wake vortexes are present in a first airspace in accordance with an example of the present invention.

Fig. 4 is a flowchart of another method for identifying aircraft wake vortexes according to an embodiment of the present invention.

Fig. 5 is a block diagram of an aircraft wake vortex identification device according to an embodiment of the present invention.

Fig. 6 is a block diagram of a submodule included in the first to-be-processed wind field distribution map acquisition module according to an embodiment of the present invention.

Fig. 7 is a block diagram of another aircraft wake vortex identification device according to an embodiment of the present invention.

Fig. 8 is a block diagram of an electronic device according to an embodiment of the present invention.

Description of the reference numerals

1-aircraft wake vortex identification means; 10-a first wind field distribution diagram acquisition module to be processed; 20-a first identification module; 11-a first target wind field data acquisition submodule; 12-a background wind field data acquisition submodule; 13-background wind field filtering submodule; 30-a second to-be-processed wind field distribution diagram acquisition module; 40-a second identification module; 50-a labeling module; 700-an electronic device; 701-a processor; 702-a memory; 703-multimedia components; 704-I/O interface; 705-communication component.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The embodiment of the invention provides an aircraft wake vortex identification method. Fig. 1 is a flowchart illustrating an aircraft wake vortex identification method according to an embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:

and step S10, obtaining a first wind field distribution map to be processed according to the first target wind field data and the background wind field data.

The first target wind field data is atmospheric wind field data of an airspace (marked as a first airspace) to be observed, such as areas near a plurality of airplane routes (including landing and landing). The background wind field data is the background wind field data to be filtered out of the first target wind field data as the name implies, and may be atmospheric wind field data of an airspace near the first airspace. The first wind field distribution graph to be processed is a visual graph generated after a background atmospheric wind field superposed in the first target wind field data is filtered according to the background wind field data, and the visual graph can be used for reflecting a tail vortex disturbance field caused by an airplane. In the process of identifying wake vortexes in a first airspace (an airspace needing to be observed), the observed first target wind field data is influenced by a background atmospheric wind field, so if a wind field distribution diagram is directly generated according to the first target wind field data, the identification of the wind field distribution diagram is easy to cause error identification. Therefore, in step S10, according to the background wind field data, the background atmospheric wind field superimposed on the first target wind field data is filtered out to obtain the first wind field distribution map to be processed, and the matching degree and the identification rate of the wake vortexes are improved by taking into account the meteorological environment variation factor.

Step S20, inputting the first wind field distribution diagram to be processed into a preset deep learning model to obtain a first recognition result output by the preset deep learning model, wherein the first recognition result comprises wake vortexes or no wake vortexes, and when the first recognition result is wake vortexes, the position coordinates of at least one wake vortex are represented through regression output.

Wake vortexes always appear in pairs, and thus the preset deep learning model can be trained to identify one wake vortex (left or right) or to identify two wake vortexes. Correspondingly, inputting the first wind field distribution graph to be processed into a preset deep learning model, and when the obtained first recognition result is that the wake vortexes are contained, outputting the position coordinates representing one wake vortex (left vortex or right vortex) or the position coordinates of two wake vortexes respectively in a regression mode.

Through the technical scheme, based on the deep learning technology, the first wind field distribution graph to be processed, with the influence of the background atmospheric wind field filtered out, is processed by the aid of the preset deep learning model, whether wake vortexes are contained in the first wind field distribution graph to be processed or not is identified, and the position coordinates representing at least one wake vortex are output when the wake vortexes are contained. According to the technical scheme provided by the invention, based on a deep learning technology, the machine automatically learns the wake vortex characteristics, and can automatically identify the wake vortex through training of a large number of image sets, and the wake vortex identification rate is higher and the false alarm rate is lower; and the image used for being identified is a first wind field distribution map to be processed, which filters the influence of the background atmospheric wind field, and the meteorological environment variation factor is considered, so that the matching degree and the identification rate of the wake vortex are improved.

Optionally, in an embodiment, as shown in fig. 2, step S10 includes:

and a substep S11, scanning the first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to obtain first target wind field data.

Wherein the first space domain is a space domain needing observation. The Doppler laser radar has the advantages of small scattering angle of emitted light beams, concentrated energy, high measurement precision and space-time resolution under clear sky conditions, high response speed, large Doppler frequency shift, capability of detecting targets moving from low speed to high speed and the like, is widely applied to the fields of monitoring airport wind field changes, detecting and early warning low-altitude wind shear and turbulence, detecting airplane wake flow, evaluating wind energy resources and the like, and is a very effective speed field detection tool. In order to acquire different wind field information, the Doppler lidar may employ three measurement modes, a Doppler Beam Swing (DBS) measurement mode, a Position Plane Indicator (PPI) measurement mode, and a Range Height Indicator (RHI) measurement mode. Optionally, in this embodiment, the first doppler laser radar acquires first target wind field data in a range-height display mode. The distance and height display measurement mode refers to a detection mode that a radar laser transmitter scans a wind field by changing a pitching attitude in a state of a fixed azimuth angle, the size and the direction of wind speed are expressed by different color codes in a polar coordinate taking a radar as a coordinate origin, the analysis of a vertical structure of an echo is facilitated, and the spectrum intensity, the radial velocity, the spectrum width, the relative position with the radar and the like of a target can be detected. According to the characteristic, the instantaneous speed change of the tangent plane of the wake vortex can be detected in the direction perpendicular to the side surface of the aircraft wake vortex by using the distance and height display measuring mode, and if the perpendicular tangent plane of the aircraft wake vortex can be continuously and rapidly scanned, the continuous four-dimensional change state of the wake vortex can be observed.

And a substep S12, scanning the second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to obtain background wind field data.

In this embodiment, the model of the second doppler laser radar is the same as that of the first doppler laser radar, and similarly, the distance height display mode may be adopted to acquire background wind field data. The second airspace is arranged near the first Doppler laser radar, so that the second Doppler laser radar scans the second airspace atmospheric wind field in real time to acquire background wind field data of the first airspace atmospheric wind field.

And a substep S13, filtering out the background atmospheric wind field superimposed on the first target wind field data according to the background wind field data, and obtaining the first wind field distribution map to be processed.

Because in atmospheric environment, the aircraft wake always appears as a pair of opposing vortices. Therefore, in the distance height display measurement mode, when wake vortexes exist in the first airspace, the obtained first wind field distribution diagram to be processed has a symmetrical and abrupt speed characteristic (two pairs of color blocks with different hues are presented). For example, as shown in fig. 3, an exemplary first wind field profile to be processed is shown when wake vortexes are present in the first airspace, wherein the radial velocity is roughly represented by a red-yellow-green-blue gradient chromatogram from large to small (5m/s to-5 m/s), a and D are red color patches representing modules in the wake with the left and right vortex velocity components up, respectively, and B and C are blue color patches representing modules in the wake with the left and right vortex velocity components down, respectively. On the contrary, in the distance and height display measurement mode, when the wake vortex does not exist in the first airspace, the obtained first wind field distribution diagram to be processed does not have the speed characteristic of symmetrical sudden change.

Optionally, the preset deep learning model is obtained by training in the following manner:

and for the wind field distribution image set, marking the wind field distribution image containing the wake vortexes in the wind field distribution image set according to a marking instruction input by a user, wherein the marking instruction is used for marking the position coordinates of at least one wake vortex.

That is, a training set for training, which is a wind field distribution image set, is prepared. The wind field distribution image set comprises a wind field distribution image which is characterized by the existence of wake vortexes and a wind field distribution image which is characterized by the nonexistence of the wake vortexes. And the wind field distribution image is a wind field distribution image for filtering the influence of the background atmospheric wind field. And labeling wake vortexes in the wind field distribution image set representing the existence of the wake vortexes, wherein the labeling instruction is to label the position coordinate of at least one wake vortex, namely to label the position coordinate of one wake vortex (left vortex or right vortex) or label the position coordinates of two wake vortexes respectively. The position coordinates may be coordinates of a circumscribed rectangle of the wake vortex, e.g., the center coordinates and width and height of the circumscribed rectangle, e.g., (b)_x，b_y，b_w，b_h)。

And training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

YOLO v3 has borrowed the residual error network structure, forms deeper network level to and the multiscale detects, has promoted mAP and small object detection effect. And training the labeled wind field distribution image set on a YOLO v3 network to obtain the preset deep learning model.

Optionally, as shown in fig. 4, in order to improve the accuracy of the identification, a dual-machine detection may be adopted, and the method further includes:

and step S30, obtaining a second wind field distribution map to be processed according to the second target wind field data and the background wind field data.

The second target wind field data is atmospheric wind field data of another airspace (marked as a third airspace) needing to be observed, and the third airspace is close to the first airspace. The second wind field distribution map to be processed is a visual map generated after filtering a background atmospheric wind field superimposed on the second target wind field data according to the background wind field data, and the visual map can be used for reflecting a wake vortex disturbance field caused by an airplane.

Optionally, step S30 includes:

and a substep S31, scanning a third airspace atmospheric wind field in real time by adopting a third Doppler laser radar to obtain second target wind field data.

Wherein a scanning azimuth (fixed azimuth) of the third doppler lidar may be parallel or approximately parallel to a scanning azimuth (fixed azimuth) of the first doppler lidar.

And a substep S32, scanning the second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to obtain background wind field data.

And a substep S33, filtering out the background atmosphere wind field superposed in the second target wind field data according to the background wind field data to obtain the second wind field distribution map to be processed.

Since step S30 is similar to step S10, sub-step S11 is similar to sub-step S31, sub-step S12 is similar to sub-step S32, and sub-step S13 is similar to sub-step S33, which will not be described herein.

And S40, inputting the second wind field distribution map to be processed into a preset deep learning model to obtain a second recognition result output by the preset deep learning model, wherein the second recognition result comprises wake vortexes or no wake vortexes, and when the second recognition result is that the wake vortexes are contained, the position coordinates of at least one wake vortex are represented through regression output.

Since step S40 is similar to step S20, it is not repeated here.

Step S50, in a case that the first recognition result is different from the second recognition result, marking the first wind field distribution graph to be processed and the second wind field distribution graph to be recognized, so as to remind a user to re-recognize the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

Because the generated wake vortex does not disappear immediately after the airplane flies, the wake vortex extends for several meters behind the airplane along with the flying of the airplane. Thus, two or more Doppler laser radars at a distance can be used to detect wake vortexes generated by the same airplane at the same time. For example, in this embodiment, a first doppler laser radar and a third doppler laser radar are used to scan a first airspace and a third airspace respectively to obtain first target wind field data and second target wind field data, and then the first target wind field data and the second target wind field data are subjected to filtering to remove influence of a background atmospheric wind field, so as to obtain a first wind field distribution diagram to be processed and a second wind field distribution diagram to be processed. Therefore, when the first recognition result is different from the second recognition result, which indicates that the recognition results of the preset deep learning model on the first wind field distribution map to be processed and the second wind field distribution map to be processed may be incorrect, the first wind field distribution map to be processed and the second wind field distribution map to be processed may be marked as wind field distribution maps to be recognized, so as to remind a user to re-recognize the first wind field distribution map to be processed and the second wind field distribution map to be processed (which may be re-recognized manually or re-recognized by using another automatic method, without limitation), thereby improving the accuracy of recognition.

Based on the inventive concept, the embodiment of the invention further provides an aircraft wake vortex identification device 1. As shown in fig. 5, the aircraft wake vortex identification apparatus 1 includes: the system comprises a first wind field distribution diagram to be processed acquisition module 10 and a first identification module 20.

The first to-be-processed wind field distribution map obtaining module 10 is configured to obtain a first to-be-processed wind field distribution map according to the first target wind field data and the background wind field data.

The first identification module 20 is configured to input the first to-be-processed wind field distribution map into a preset deep learning model, to obtain a first identification result output by the preset deep learning model, where the first identification result includes wake vortexes or does not include wake vortexes, and when the first identification result includes wake vortexes, the position coordinates of at least one wake vortex are represented by regression output.

Through the technical scheme, based on the deep learning technology, the first wind field distribution graph to be processed, with the influence of the background atmospheric wind field filtered out, is processed by the aid of the preset deep learning model, whether wake vortexes are contained in the first wind field distribution graph to be processed or not is identified, and the position coordinates representing at least one wake vortex are output when the wake vortexes are contained. According to the technical scheme provided by the invention, based on a deep learning technology, the machine automatically learns the wake vortex characteristics, and can automatically identify the wake vortex through training of a large number of image sets, and the wake vortex identification rate is higher and the false alarm rate is lower; and the image used for being identified is a first wind field distribution map to be processed, which filters the influence of the background atmospheric wind field, and the meteorological environment variation factor is considered, so that the matching degree and the identification rate of the wake vortex are improved.

Optionally, as shown in fig. 6, the first wind field distribution map acquiring module 10 to be processed includes:

and the first target wind field data acquisition submodule 11 is used for scanning the first airspace atmospheric wind field in real time by adopting a first Doppler laser radar to acquire first target wind field data.

And the background wind field data acquisition submodule 12 is used for scanning the second airspace atmospheric wind field in real time by adopting a second Doppler laser radar to acquire background wind field data.

And the background wind field filtering submodule 13 is configured to filter a background atmospheric wind field superimposed on the first target wind field data according to the background wind field data, so as to obtain the first wind field distribution map to be processed.

Optionally, the preset deep learning model is obtained by training in the following manner:

and for the wind field distribution image set, marking the wind field distribution image containing the wake vortexes in the wind field distribution image set according to a marking instruction input by a user, wherein the marking instruction is used for marking the position coordinates of at least one wake vortex.

And training the YOLO v3 network according to the wind field distribution image set to obtain the preset deep learning model.

Optionally, as shown in fig. 7, in an embodiment, the aircraft wake vortex identification device 1 further includes:

the second to-be-processed wind field distribution map obtaining module 30 is configured to obtain a second to-be-processed wind field distribution map according to the second target wind field data and the background wind field data;

the second identification module 40 is configured to input the second wind field distribution map to be processed into a preset deep learning model, so as to obtain a second identification result output by the preset deep learning model, where the second identification result includes wake vortexes or does not include wake vortexes, and when the second identification result includes wake vortexes, the position coordinates representing at least one wake vortex are regressed and output;

and the marking module 50 is configured to mark the first wind field distribution graph to be processed and the second wind field distribution graph to be recognized under the condition that the first recognition result and the second recognition result are different, so as to remind a user of re-recognizing the first wind field distribution graph to be processed and the second wind field distribution graph to be processed.

Because the generated wake vortex does not disappear immediately after the airplane flies, the wake vortex extends for several meters behind the airplane along with the flying of the airplane. Thus, two or more Doppler laser radars at a distance can be used to detect wake vortexes generated by the same airplane at the same time. For example, in this embodiment, a first doppler laser radar and a third doppler laser radar are used to scan a first airspace and a third airspace respectively to obtain first target wind field data and second target wind field data, and then the first target wind field data and the second target wind field data are subjected to filtering to remove influence of a background atmospheric wind field, so as to obtain a first wind field distribution diagram to be processed and a second wind field distribution diagram to be processed. Therefore, when the first recognition result is different from the second recognition result, which indicates that the recognition results of the preset deep learning model on the first wind field distribution map to be processed and the second wind field distribution map to be processed may be incorrect, the first wind field distribution map to be processed and the second wind field distribution map to be processed may be marked as wind field distribution maps to be recognized, so as to remind a user to re-recognize the first wind field distribution map to be processed and the second wind field distribution map to be processed (which may be re-recognized manually or re-recognized by using another automatic method, without limitation), thereby improving the accuracy of recognition.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Based on the above inventive concept, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the aircraft wake vortex identification method.

Based on the inventive concept, the embodiment of the invention also provides the electronic equipment. Fig. 8 is a block diagram illustrating an electronic device 700 in accordance with an example embodiment. As shown in fig. 8, the electronic device 700 may include: a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.

The processor 701 is configured to control the overall operation of the electronic device 700, so as to complete all or part of the steps in the aircraft wake vortex identification method. The memory 702 is used to store various types of data to support operation at the electronic device 700, such as instructions for any application or method operating on the electronic device 700 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and the like. The Memory 702 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia components 703 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 702 or transmitted through the communication component 705. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, or the like, or a combination of one or more of them, which is not limited herein. The corresponding communication component 705 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described aircraft tail vortex identification method.

In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the aircraft wake vortex identification method described above is also provided. For example, the computer readable storage medium may be the memory 702 described above including program instructions executable by the processor 701 of the electronic device 700 to perform the aircraft wake vortex identification method described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the aircraft wake vortex identification method described above when executed by the programmable apparatus.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.