Aircraft landing point prediction method, device, equipment, medium and product

Abstract

The embodiment of the invention discloses an aircraft landing point prediction method and device, equipment, a medium and a product, and the method comprises the steps: obtaining the wind speed information of a preset time length at a preset height through a laser wind finding radar, and enabling the wind speed information to comprise the radial wind speed information of four directions; the laser wind finding radars are installed at the two ends of an airport runway. The number of the laser wind measurement radars is not less than two; determining a horizontal wind speed and a horizontal wind direction of the preset height according to the wind speed information; according to the horizontal wind speed, the horizontal wind direction and the true azimuth angle of each laser wind finding radar, determining the average head-on wind speed and the average head-on wind direction of each laser wind finding radar in the preset duration; and determining a target aircraft landing point according to the average head-on wind speed and the average head-on wind direction of each laser wind finding radar. According to the technical scheme, through comprehensive analysis of the average head-on wind speed and the average head-on wind direction, accurate identification of the aircraft landing point is realized.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of intelligent prediction technology, and in particular to a method, device, equipment, medium and product for predicting an aircraft landing point. Background Art

[0002] In aviation meteorology, when the height of the ground is below 600m, the changes in wind speed and wind direction in the horizontal and vertical distances in the air within a certain distance are called low-altitude wind shear, which has the characteristics of high intensity, small scale, strong suddenness, short life span, and low airspace. When an aircraft encounters low-altitude wind shear during the take-off and landing phase with low airspeed and low altitude from the ground, the wind shear will instantly change the stable flight attitude of the aircraft, causing the aircraft to bump, sway or even crash. It is a recognized invisible killer in the air. With the development of laser technology, laser wind radar has gradually become an important tool for low-altitude wind shear detection and early warning under clear skies at civil aviation airports due to its advantages of small size, strong anti-interference ability, and fine three-dimensional wind field information. However, in the process of using laser wind radar in civil aviation airports, due to its limited detection range and data refresh frequency, a laser wind radar cannot scan the wind field around the airport runway in real time and in all directions, which will bring the risk of untimely wind shear warning and missed wind shear warning to a certain extent, and then cause inaccurate identification of aircraft landing points. At the same time, when laser wind radar detects low-altitude wind shear at civil aviation airports, the detection range and data refresh frequency of a single radar are limited, resulting in the inability to continuously obtain wind condition information in real time. Summary of the invention

[0003] The embodiments of the present disclosure provide a method, device, equipment, medium and product for predicting an aircraft landing point, which achieve accurate identification of the aircraft landing point.

[0004] In a first aspect, a method for predicting an aircraft landing point is provided, the method comprising:

[0005] The wind speed information of a preset time length is obtained at a preset height by using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is not less than two;

[0006] Determine the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information;

[0007] Determine the average headwind speed and average headwind direction of each laser wind radar within the preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar;

[0008] The target aircraft landing point is determined based on the average headwind speed and average headwind direction of each laser wind radar.

[0009] In a second aspect, a device for predicting an aircraft landing point is provided, comprising:

[0010] A wind speed information acquisition module, used to acquire wind speed information of a preset time length at a preset height using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is not less than two;

[0011] A horizontal information determination module, used to determine the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information;

[0012] An average head-on information determination module is used to determine the average head-on wind speed and average head-on wind direction of each laser wind radar within the preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar;

[0013] The landing point determination module is used to determine the landing point of the target aircraft according to the average headwind speed and average headwind direction of each laser wind radar.

[0014] In a third aspect, an electronic device is provided, including:

[0015] at least one processor; and

[0016] a memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for predicting an aircraft landing point as described in the first aspect above.

[0018] In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method for predicting an aircraft landing point as described in the first aspect above is implemented.

[0019] In a fifth aspect, a computer program product is provided, the computer program product comprising a computer program, and when the computer program is executed by a processor, the computer program implements the method for predicting an aircraft landing point as described in the first aspect above.

[0020] The disclosed embodiment discloses a method, device, equipment, medium and product for predicting an aircraft landing point, including: using a laser wind radar to obtain wind speed information at a preset height for a preset time, wherein the wind speed information includes radial wind speed information in four directions; the laser wind radar is installed at both ends of the airport runway; the number of the laser wind radars is not less than two; the horizontal wind speed and horizontal wind direction at the preset height are determined according to the wind speed information; the average headwind speed and average headwind direction of each laser wind radar within the preset time are determined according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar; the target aircraft landing point is determined according to the average headwind speed and average headwind direction of each laser wind radar. This technical solution solves the problem of inaccurate aircraft landing point prediction caused by wind shear in the prior art by comprehensively analyzing the average headwind speed and the average headwind direction, and realizes accurate identification of the aircraft landing point.

[0021] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the embodiments of the present disclosure. Other features of the embodiments of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is a flow chart of a method for predicting an aircraft landing point provided in the first embodiment of the present disclosure;

[0024] Figure 2 This is a schematic diagram of the installation of a laser wind measurement radar provided in the first embodiment of the present disclosure;

[0025] Figure 3 This is a scanning schematic diagram of a laser wind measurement radar provided in the first embodiment of the present disclosure;

[0026] Figure 4 This is a schematic diagram of a target aircraft landing point determination process provided by the first embodiment of the present disclosure;

[0027] Figure 5 is a schematic diagram of a prediction result provided by the first embodiment of the present disclosure;

[0028] Figure 6 This is a schematic diagram of a prediction process of an aircraft landing point provided by the first embodiment of the present disclosure;

[0029] Figure 7 It is a structural schematic diagram of a device for predicting an aircraft landing point provided in the second embodiment of the present disclosure;

[0030] Figure 8 It is a structural diagram of an electronic device provided in Embodiment 3 of the present disclosure. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the embodiments of the present disclosure.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0033] Embodiment 1

[0034] Figure 1 This is a flowchart of a method for predicting an aircraft landing point provided in the first embodiment of the present disclosure. This embodiment is applicable to the case of predicting an aircraft landing point. The method can be executed by a device for predicting an aircraft landing point. The device for predicting an aircraft landing point can be implemented in the form of hardware and / or software. The device for predicting an aircraft landing point can be configured in an electronic device, including but not limited to computers, computers, terminals, servers and other devices with data processing capabilities. Figure 1 As shown, the method includes:

[0035] S110. Obtain wind speed information of a preset time period at a preset height using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is no less than two.

[0036] In this embodiment, a laser wind radar can be used to obtain wind speed information of a preset time at a preset height, wherein the laser wind radar is a device that uses laser technology to measure wind speed and wind direction. It works by emitting laser pulses and receiving light scattered back by aerosol particles in the atmosphere. According to the Doppler shift effect, the frequency change of these scattered lights is proportional to the speed of the particles (i.e., wind), so that the wind speed can be calculated. The laser wind radar can be installed at both ends of the airport runway; the number of laser wind radars is not less than two. Figure 2 A schematic diagram of the installation of a laser wind radar provided in this embodiment is shown in FIG. Figure 2 As shown, in this example, two radars are installed at the 0th and 1st ends of the runway respectively, and the Doppler beam sharpening (DBS) scanning mode is turned on to perform scanning in four fixed azimuths at a fixed elevation angle.

[0037] Continuing with the above description, the preset altitude may be a preset altitude, and exemplarily, the preset altitude may be a minimum altitude layer, and the minimum altitude layer may refer to the minimum flight altitude specified in order to ensure the safety of the aircraft during flight, especially during the approach and landing of the aircraft. The preset duration may be a preset duration, and exemplarily, the preset duration may be 20 minutes.

[0038] In this embodiment, the wind speed information may be wind speed information measured by a laser wind radar, and the wind speed information may include wind speed information in four directions. Exemplarily, the wind speed information may include east wind speed information, south wind speed information, west wind speed information, and north wind speed information.

[0039] S120. Determine the horizontal wind speed and horizontal wind direction at a preset height according to the wind speed information.

[0040] It can be known that after obtaining the wind speed information at a preset height based on the laser wind radar, the horizontal wind speed and horizontal wind direction at the preset height can be determined based on the wind speed information. Among them, the horizontal wind speed can be the speed of the wind on the horizontal plane. At the lowest altitude, the horizontal wind speed can refer to the degree of influence of the wind on the aircraft when the aircraft takes off or lands; the horizontal wind direction can be the direction from which the wind blows on the horizontal plane.

[0041] Figure 3 A scanning schematic diagram of a laser wind radar is given, such as Figure 3 As shown, the laser wind radar can obtain radial wind speed information of all radars in the past 20 minutes along four directions: east (east, E), south (south, S), west (west, W), and north (north, N).

[0042] S130, determining the average headwind speed and average headwind direction of each laser wind measuring radar within a preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind measuring radar.

[0043] In this embodiment, the true azimuth of each laser wind radar may refer to the angle measured clockwise from the north direction to the wind direction. In the laser wind radar, the true azimuth is used to determine the direction of the wind speed vector on the horizontal plane. If the laser wind radar is fixed and the radar itself does not move, its true azimuth can remain fixed.

[0044] Specifically, after the horizontal wind speed and horizontal wind direction are obtained, the average headwind speed and average headwind direction of each laser wind radar within a preset time period can be determined according to the horizontal wind speed, horizontal wind direction of each radar and the true azimuth of each laser wind radar.

[0045] For example, the preset time length may be 20 minutes, the horizontal wind speed may be expressed as WSpeed, the horizontal wind direction may be expressed as WDir, and the average headwind speed V(i) and headwind direction Dir(i) of different radars i in the past 20 minutes may be calculated as shown in the following formula:

[0046]

[0047]

[0048] Where n represents the total number of data records acquired in the past 20 minutes, j represents the count of data records acquired in the past 20 minutes, and Azi can be the true azimuth of each laser wind radar.

[0049] S140: Determine the landing point of the target aircraft according to the average headwind speed and average headwind direction of each laser wind measuring radar.

[0050] Specifically, after obtaining the average headwind speed and the average headwind direction of each laser radar, the target aircraft landing point of the aircraft can be determined based on the average headwind speed and the average headwind direction of each laser radar, wherein the target aircraft landing point can be the expected landing position during the aircraft's descent, such as: the runway is divided into end 0 and end 1, and the target aircraft landing point can be end 0 or end 1.

[0051] The present embodiment provides a method for predicting an aircraft landing point, comprising: obtaining wind speed information of a preset time length at a preset height by using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information of four directions; the laser wind measuring radar is installed at both ends of an airport runway; the number of the laser wind measuring radars is not less than two; determining the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information; determining the average headwind speed and average headwind direction of each laser wind measuring radar within the preset time length according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind measuring radar; determining the landing point of the target aircraft according to the average headwind speed and the average headwind direction of each laser wind measuring radar, thereby achieving accurate prediction of the landing point of the target aircraft.

[0052] As an optional implementation of this embodiment, the method for predicting an aircraft landing point provided in this embodiment further includes:

[0053] The observation area and data refresh frequency of each laser wind measuring radar are adjusted based on the landing point of the target aircraft.

[0054] It can be known that after the target aircraft landing point is determined, the laser wind measuring radars at the target aircraft landing point and the non-target aircraft landing point can be adjusted.

[0055] Specifically, the 0 end of the runway can be the landing point of the target aircraft, and the observation area of ​​the laser wind measuring radar at the landing point of the target aircraft located on the main landing runway can be narrowed, that is, the wind field near the landing point of the target aircraft can be observed more densely, the scanning range of the radar azimuth can be narrowed, and the data refresh frequency can be increased; and for the laser wind measuring radar around the landing point of the non-target aircraft, the scanning range of the laser wind measuring radar around the landing point of the non-target aircraft can be expanded, and the wind field in the surrounding area of ​​the airport can be observed in all directions, the scanning range of the radar azimuth can be expanded, and the data refresh frequency can be reduced, finally realizing real-time and all-round coordinated observation of the airport wind field.

[0056] As an optional implementation manner of this embodiment, determining the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information includes:

[0057] 1) Determine the horizontal wind speed component and the north wind speed component according to the wind speed information of each direction in the wind speed information.

[0058] For example, the wind speed information may include radial wind speed information V in the east direction. rE , Southward radial wind speed information V rS , radial wind speed information V in the west rW and the radial wind speed information V in the north direction rN , then:

[0059]

[0060] Among them, V x V is the horizontal component of wind speed in the east-west direction in the horizontal plane, which can be positive or negative, depending on whether the wind is blowing from east to west or from west to east; z It can be the velocity component of the wind in the vertical direction, that is, the rising or sinking speed of the wind; V y It can be the north component of the wind in the horizontal plane, that is, the north component of the wind speed in the north direction. This component can be positive or negative, depending on whether the wind is blowing from north to south or from south to north; θ can refer to the true azimuth of the wind, that is, the angle measured clockwise from the true north direction to the wind direction.

[0061] Following the above description, based on the radial wind speed information V in the east rE , Southward radial wind speed information V rS , radial wind speed information V in the west rW and the radial wind speed information V in the north direction rN Calculate V x and V y The value of is:

[0062]

[0063] 2) Determine the horizontal wind speed and horizontal wind direction at the preset height according to the horizontal wind speed component and the north wind speed component.

[0064] Following the above description, after the horizontal wind speed component and the north wind speed component are determined, the horizontal wind speed and horizontal wind direction at a preset height can be determined based on the horizontal wind speed component and the north wind speed component. x , the north wind speed component is represented by V y , then:

[0065]

[0066] WDir=arctan2(V y ,V x )·180 / π+180

[0067] Among them, WSpeed ​​can be the horizontal wind speed, and WDir can be the horizontal wind direction.

[0068] As an optional implementation of this embodiment, determining the landing point of the target aircraft according to the average headwind speed and average headwind direction of each laser wind measuring radar includes:

[0069] Based on the target wind speed in the average headwind speed of each laser wind radar and preset conditions, the designated aircraft landing point is determined as the target aircraft landing point, or the target aircraft landing point is determined according to the average headwind direction of each laser wind radar and a preset threshold range.

[0070] It can be known that after the average headwind speed and average headwind direction of each laser wind radar are determined, the target wind speed can be determined from the average headwind speed of each laser radar, such as: the target wind speed can be the maximum value, minimum value or median of each average headwind speed. And according to the target wind speed and preset conditions, the designated aircraft landing point is determined as the target aircraft landing point.

[0071] Alternatively, when the target wind speeds all meet the preset conditions, the target aircraft landing point can be determined based on the average headwind direction of each laser wind measuring radar and a preset threshold range, wherein the preset threshold range can be a threshold range for judging the average headwind direction. Exemplarily, the preset threshold range can be that each average headwind direction is stable within a range of ±60° at the runway 0 end, and the preset threshold range can also be that the average headwind direction is stable within a range of ±60° at the runway 1 end.

[0072] As an optional implementation of this embodiment, the designated aircraft landing point includes a first landing point and a second landing point;

[0073] The preset conditions include a first preset condition, a second preset condition, a third preset condition and a fourth preset condition;

[0074] The target wind speed includes a first wind speed, a second wind speed and a third wind speed. The target wind speed in the average headwind speed of each laser wind measuring radar and a preset condition are used to determine the designated aircraft landing point as the target aircraft landing point, and further includes:

[0075] 1) determining a first wind speed, a second wind speed, and a third wind speed in the average headwind speed of each laser wind measuring radar;

[0076] Specifically, the first wind speed, the second wind speed and the third wind speed among the average headwind speeds of each laser wind measuring radar can be determined, wherein the first wind speed can be the minimum value among the average headwind speeds, the second wind speed can be the maximum value among the average headwind speeds, and the third wind speed can be the median among the average headwind speeds.

[0077] 2) if the first wind speed satisfies the first preset condition, determining the first landing point as the target aircraft landing point;

[0078] In this embodiment, the first preset condition may be that the first wind speed is ≥ the first preset threshold value, and illustratively, the first preset threshold value may be 3. If the first wind speed satisfies the first preset condition, the aircraft landing point designated by the first landing point may be determined as the target aircraft landing point. The designated aircraft landing point may include the first landing point and the second landing point. For example, the first landing point may be the 0 end of the runway, and the minimum value of the average headwind speed of each laser radar is ≥ 3, then the 0 end may be determined as the target aircraft landing point.

[0079] 3) if the first wind speed does not meet the first preset condition, determining whether the second wind speed meets the second preset condition;

[0080] Continuing with the above description, if the first wind speed does not meet the first preset condition, that is, the minimum value of the average headwind speeds of each laser radar is less than 3, it can be determined whether the second wind speed meets the second preset condition.

[0081] 4) if the second wind speed satisfies the second preset condition, determining the second landing point as the target aircraft landing point;

[0082] Specifically, the second preset condition may be that the second wind speed is ≤ the first preset threshold. If the second wind speed satisfies the second preset condition, that is, the maximum value of the average headwind speeds of each laser radar is ≤3, the second landing point may be designated as the aircraft landing point. Exemplarily, the second aircraft landing point may be one end of the runway, and when the maximum value of the average headwind speeds of each laser radar is ≤3, the one end is determined as the aircraft landing point.

[0083] 5) If the second wind speed does not satisfy the second preset condition, determining whether the first wind speed and the third wind speed satisfy the third preset condition;

[0084] Continuing with the above description, if the second wind speed does not meet the second preset condition, that is, the maximum value of the average headwind speeds of each laser radar is greater than 3, it can be determined whether the first wind speed and the third wind speed meet the third preset condition.

[0085] 6) If the first wind speed and the third wind speed meet a third preset condition, determining the first landing point as the target aircraft landing point;

[0086] Specifically, the third preset condition may be that the first wind speed is greater than the product of the second preset threshold and -1 and the third wind speed is greater than the first preset threshold, wherein the second preset threshold may be 1. If the first wind speed and the third wind speed satisfy the third preset condition, that is, the first wind speed is greater than -1 and the third wind speed is greater than 3, the first landing point (end 0 of the runway) may be determined as the landing point of the aircraft.

[0087] 7) If the first wind speed and the third wind speed do not satisfy the third preset condition, determining whether the second wind speed and the third wind speed satisfy the fourth preset condition;

[0088] Continuing with the above description, if the first wind speed and the third wind speed do not satisfy the third preset condition, it may be determined whether the second wind speed and the third wind speed satisfy the fourth preset condition.

[0089] 8) If the second wind speed and the third wind speed meet a fourth preset condition, the second landing point is determined as the target aircraft landing point.

[0090] In this embodiment, the fourth preset condition may be that the second wind speed is less than the second preset threshold and the third wind speed is less than the product of the first preset threshold and -1. If the second wind speed and the third wind speed meet the fourth preset condition, that is, the second wind speed is less than 1 and the third wind speed is less than -3, the second landing point (end 1 of the runway) is determined as the landing point of the aircraft.

[0091] As an optional implementation of this embodiment, the preset condition includes a fourth preset condition; the target wind speed includes a second wind speed and a third wind speed;

[0092] The preset threshold range includes a first preset threshold range and a second preset threshold range;

[0093] Determining the landing point of the target aircraft according to the average headwind direction of each laser wind radar and a preset threshold range includes:

[0094] 1) If the second wind speed and the third wind speed do not meet the fourth preset condition, determining whether the average headwind direction of each laser wind measuring radar falls within the first preset threshold range;

[0095] Specifically, if the second wind speed and the third wind speed do not meet the fourth preset condition, it can be determined whether the average headwind direction of each laser wind measuring radar belongs to the first preset threshold range. Exemplarily, the first preset threshold range can be that each average headwind direction is stable within the range of ±60° of the runway 0 end.

[0096] 2) If the average headwind direction of each laser wind radar belongs to the first preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft;

[0097] It can be known that if the average headwind direction of each laser wind measuring radar belongs to the first preset threshold range, that is, each average headwind direction is stable within the range of ±60° of the runway 0 end, then the first landing point corresponding to the first preset threshold range can be determined as the target aircraft landing point, that is, the runway 0 end can be determined as the target aircraft landing point.

[0098] 3) if the average headwind direction of each laser wind measuring radar does not fall within the first preset threshold range, determining whether the average headwind direction of each laser wind measuring radar falls within the second preset threshold range;

[0099] Specifically, if the average headwind direction of each laser wind measuring radar does not fall within the first preset threshold range, that is, the average headwind direction of each laser wind measuring radar is not stable within the range of ±60° at the runway end 0, it can be determined whether the average headwind direction of each laser wind measuring radar falls within the second preset threshold range.

[0100] 4) If the average headwind direction of each laser wind measuring radar belongs to the second preset threshold range, the second landing point corresponding to the second preset threshold range is determined as the landing point of the target aircraft;

[0101] In this embodiment, the second preset threshold range may be that each average headwind direction is stable within the range of ±60° at the end of runway 1. If the average headwind direction of each laser wind radar belongs to the second preset threshold range, that is, each average headwind direction is stable within the range of ±60° at the end of runway 1, then the second landing point corresponding to the second preset threshold range can be determined as the target aircraft landing point, that is, the end of runway 1 can be determined as the target aircraft landing point.

[0102] 5) If the average headwind direction of each laser wind measuring radar does not fall within the second preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft.

[0103] It should be noted that if the average headwind direction of each laser wind measuring radar does not fall within the second preset threshold range, that is, the average headwind direction is not stable within the range of ±60° at the end of runway 1, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft.

[0104] Figure 4 A schematic diagram of a target aircraft landing point determination process provided in this embodiment is as follows: Figure 4As shown, the target aircraft landing point can be represented as Flag=0 or Flag=1, and the target aircraft landing point can be initialized to the 0th end of the runway, that is, Flag=0. Among them, Flag=0 indicates that the target aircraft landing point is the 0th end of the runway, and Flag=1 indicates that the target aircraft landing point is the 1st end of the runway. The average headwind speed can be represented as V, and the average headwind direction can be represented as Dir. Among them, the first preset threshold can be represented as Th1=3, and the second preset threshold can be represented as Th2=1. Then, the average headwind speed V and the average headwind direction Dir within 20 minutes are obtained. If the minimum value of V (the first wind speed) is greater than or equal to Th1, then: Flag=0; if the minimum value of V (the first wind speed) is less than Th1, then determine whether the maximum value of V (the second wind speed) is less than or equal to Th1. If the maximum value of V (the second wind speed) is less than or equal to Th1, then: Flag=1; if the maximum value of V (the second wind speed) is greater than Th1, then determine whether the minimum value of V (the first wind speed) is less than or equal to Th1. Greater than -1 times Th2 and whether the median of V (the third wind speed) is greater than Th1. If the minimum value of V (the first wind speed) is greater than -1 times Th2 and the median of V (the third wind speed) is greater than Th1, then: Flag = 0; otherwise, determine whether the maximum value of V (the second wind speed) is less than Th2 and whether the median of V (the third wind speed) is less than -1 times Th1. If the maximum value of V (the second wind speed) is less than Th2 and the median of V (the third wind speed) is less than -1 times Th1, then: Flag = 1; otherwise, determine whether the average headwind direction Dir is stable within the range of ±60° at the end of runway 0. If so, then: Flag = 0; otherwise, determine whether the average headwind direction Dir is stable within the range of ±60° at the end of runway 1. If so, then: Flag = 1; if not, then: Flag = 0.

[0105] Figure 5 A schematic diagram of a prediction result provided in this embodiment, such as Figure 5 As shown, the prediction results obtained by the prediction method of the aircraft landing point provided by this embodiment are shown. The black solid line shows the prediction result of the aircraft landing point of this technical solution, and the shaded part shows the time record of the actual landing point of the aircraft. Figure 5 It can be seen that the landing point recognition result of this technical solution is consistent with the actual landing point time record.

[0106] Figure 6 A schematic diagram of a prediction process of an aircraft landing point provided in this embodiment, such as Figure 6As shown, DBS data (horizontal wind speed, horizontal wind direction and true azimuth) within the past 20 minutes can be obtained. If the target aircraft landing point is manually judged, the radar scanning parameters (observation area and data refresh frequency) of the laser wind measuring radar at the target aircraft landing point and the non-target aircraft landing point are adjusted after manual selection; if the target aircraft landing point is not manually judged, the horizontal wind speed and horizontal wind direction of each laser wind measuring radar at the lowest altitude layer are screened, and the average headwind speed and average headwind direction are determined according to the horizontal wind speed, horizontal wind direction and true azimuth, and threshold judgment is performed according to the average headwind speed and average headwind direction to determine the target aircraft landing point, and the radar scanning parameters (observation area and data refresh frequency) of the laser wind measuring radar at the target aircraft landing point and the non-target aircraft landing point are adjusted.

[0107] The beneficial effects of this technical solution include:

[0108] 1) This technical solution is based on the wind field near the runway. According to the real-time observation results of multiple laser wind radars, the headwind speed and headwind direction at the runway end are inverted, and the headwind speed and headwind direction range are comprehensively analyzed to realize the automatic identification of the aircraft landing point, providing real-time guarantee for the laser wind radar to automatically monitor the wind field changes.

[0109] 2) This technical solution starts from the aircraft landing point identification results of multiple laser wind measuring radars, conducts intensive wind field observations on the laser wind measuring radars located at the aircraft landing point, and conducts all-round wind field observations on the laser wind measuring radars located at non-aircraft landing points. The scanning observation results of multiple radars are combined to achieve accurate extraction of airport wind field change information.

[0110] Embodiment 2

[0111] Figure 7 is a schematic diagram of the structure of a device for predicting an aircraft landing point provided in the second embodiment of the present disclosure; Figure 7 As shown, the device includes: a wind speed information acquisition module 210, a horizontal information determination module 220, an average head-on information determination module 230, and a landing point determination module 240.

[0112] The wind speed information acquisition module 210 is used to acquire wind speed information of a preset time length at a preset height using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is not less than two;

[0113] A horizontal information determination module 220, configured to determine the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information;

[0114] An average head-on information determination module 230 is used to determine the average head-on wind speed and average head-on wind direction of each laser wind radar within the preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar;

[0115] The landing point determination module 240 is used to determine the landing point of the target aircraft according to the average headwind speed and average headwind direction of each laser wind radar.

[0116] A second embodiment of the present disclosure provides a device for predicting an aircraft landing point, which achieves accurate prediction of the aircraft landing point.

[0117] Furthermore, the device also includes:

[0118] The adjustment module is used to adjust the observation area and data refresh frequency of each laser wind measuring radar based on the landing point of the target aircraft.

[0119] Furthermore, the level information determination module 220 is further configured to:

[0120] Determine a horizontal wind speed component and a north wind speed component according to the wind speed information in each direction in the wind speed information;

[0121] The horizontal wind speed and horizontal wind direction at the preset height are determined according to the horizontal wind speed component and the north wind speed component.

[0122] Furthermore, the landing point determination module 240 is further configured to:

[0123] Based on the target wind speed in the average headwind speed of each laser wind radar and preset conditions, the designated aircraft landing point is determined as the target aircraft landing point, or the target aircraft landing point is determined according to the average headwind direction of each laser wind radar and a preset threshold range.

[0124] Further, the designated aircraft landing point includes a first landing point and a second landing point;

[0125] The preset conditions include a first preset condition, a second preset condition, a third preset condition and a fourth preset condition;

[0126] The target wind speed includes a first wind speed, a second wind speed and a third wind speed;

[0127] The step of determining the designated aircraft landing point as the target aircraft landing point based on the target wind speed in the average headwind speed of each laser wind measuring radar and a preset condition includes:

[0128] Determine a first wind speed, a second wind speed, and a third wind speed in the average headwind speed of each laser wind radar;

[0129] If the first wind speed meets the first preset condition, determining the first landing point as the target aircraft landing point;

[0130] If the first wind speed does not meet the first preset condition, determining whether the second wind speed meets the second preset condition;

[0131] If the second wind speed meets the second preset condition, determining the second landing point as the target aircraft landing point;

[0132] If the second wind speed does not satisfy the second preset condition, determining whether the first wind speed and the third wind speed satisfy a third preset condition;

[0133] If the first wind speed and the third wind speed meet a third preset condition, determining the first landing point as the target aircraft landing point;

[0134] If the first wind speed and the third wind speed do not satisfy the third preset condition, determining whether the second wind speed and the third wind speed satisfy the fourth preset condition;

[0135] If the second wind speed and the third wind speed meet a fourth preset condition, the second landing point is determined as the target aircraft landing point.

[0136] Further, the preset condition includes a fourth preset condition; the target wind speed includes a second wind speed and a third wind speed;

[0137] The preset threshold range includes a first preset threshold range and a second preset threshold range;

[0138] Determining the landing point of the target aircraft according to the average headwind direction of each laser wind radar and a preset threshold range includes:

[0139] If the second wind speed and the third wind speed do not satisfy the fourth preset condition, determining whether the average headwind direction of each laser wind measuring radar falls within the first preset threshold range;

[0140] If the average headwind direction of each laser wind radar belongs to the first preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft;

[0141] If the average headwind direction of each laser wind measuring radar does not fall within the first preset threshold range, determining whether the average headwind direction of each laser wind measuring radar falls within the second preset threshold range;

[0142] If the average headwind direction of each laser wind measuring radar belongs to the second preset threshold range, the second landing point corresponding to the second preset threshold range is determined as the landing point of the target aircraft;

[0143] If the average headwind direction of each laser wind measuring radar does not fall within the second preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft.

[0144] The aircraft landing point prediction device provided in the embodiments of the present disclosure can execute the aircraft landing point prediction method provided in any embodiment of the present disclosure, and has the corresponding functional modules and beneficial effects of the execution method.

[0145] Embodiment 3

[0146] Figure 8 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of the present disclosure described and / or claimed herein.

[0147] like Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0148] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0149] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microprocessor, etc. The processor 11 executes the various methods and processes described above, such as a method for predicting an aircraft landing point.

[0150] In some embodiments, the method for predicting an aircraft landing point may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for predicting an aircraft landing point described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for predicting an aircraft landing point in any other appropriate manner (e.g., by means of firmware).

[0151] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0152] The computer programs for implementing the methods of the embodiments of the present disclosure may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0153] In the context of the disclosed embodiments, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0154] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0155] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0156] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0157] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in the embodiments of the present disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions of the embodiments of the present disclosure can be achieved, and this document does not limit this.

[0158] The above specific implementations do not constitute a limitation on the protection scope of the embodiments of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the embodiments of the present disclosure shall be included in the protection scope of the embodiments of the present disclosure.

[0159] The embodiments of the present disclosure also provide a computer program product, including a computer program and / or instructions, which, when executed by a processor, implements the method for predicting an aircraft landing point as provided in any embodiment of the present application.

[0160] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to write computer program codes for performing the operation of the disclosed embodiments, the programming languages ​​including object-oriented programming languages, such as Java, Smalltalk, C++, and also including conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., using an Internet service provider to connect through the Internet).

[0161] Note that the above are only preferred embodiments of the embodiments of the present disclosure and the technical principles used. Those skilled in the art will understand that the embodiments of the present disclosure are not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the embodiments of the present disclosure. Therefore, although the embodiments of the present disclosure are described in more detail through the above embodiments, the embodiments of the present disclosure are not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the embodiments of the present disclosure, and the scope of the embodiments of the present disclosure is determined by the scope of the attached claims.

Claims

1. A method for predicting an aircraft landing point, characterized in that: The method comprises: The wind speed information of a preset time length is obtained at a preset height by using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is not less than two; Determine the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information; Determine the average headwind speed and average headwind direction of each laser wind radar within the preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar; The target aircraft landing point is determined based on the average headwind speed and average headwind direction of each laser wind radar.

2. The method according to claim 1, characterized in that The method further comprises: The observation area and data refresh frequency of each laser wind measuring radar are adjusted based on the landing point of the target aircraft.

3. The method according to claim 1, characterized in that The determining the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information includes: Determine a horizontal wind speed component and a north wind speed component according to the wind speed information in each direction in the wind speed information; The horizontal wind speed and horizontal wind direction at the preset height are determined according to the horizontal wind speed component and the north wind speed component.

4. The method according to claim 1, characterized in that Determining the target aircraft landing point according to the average headwind speed and average headwind direction of each laser wind radar includes: Based on the target wind speed in the average headwind speed of each laser wind radar and preset conditions, the designated aircraft landing point is determined as the target aircraft landing point, or the target aircraft landing point is determined according to the average headwind direction of each laser wind radar and a preset threshold range.

5. The method according to claim 4, characterized in that The designated aircraft landing point includes a first landing point and a second landing point; The preset conditions include a first preset condition, a second preset condition, a third preset condition and a fourth preset condition; The target wind speed includes a first wind speed, a second wind speed and a third wind speed; The step of determining the designated aircraft landing point as the target aircraft landing point based on the target wind speed in the average headwind speed of each laser wind measuring radar and a preset condition includes: Determine a first wind speed, a second wind speed, and a third wind speed in the average headwind speed of each laser wind radar; If the first wind speed meets the first preset condition, determining the first landing point as the target aircraft landing point; If the first wind speed does not meet the first preset condition, determining whether the second wind speed meets the second preset condition; If the second wind speed satisfies the second preset condition, determining the second landing point as the target aircraft landing point; If the second wind speed does not satisfy the second preset condition, determining whether the first wind speed and the third wind speed satisfy a third preset condition; If the first wind speed and the third wind speed meet a third preset condition, determining the first landing point as the target aircraft landing point; If the first wind speed and the third wind speed do not satisfy the third preset condition, determining whether the second wind speed and the third wind speed satisfy the fourth preset condition; If the second wind speed and the third wind speed meet a fourth preset condition, the second landing point is determined as the target aircraft landing point.

6. The method according to claim 4, characterized in that The preset conditions include a fourth preset condition; the target wind speed includes a second wind speed and a third wind speed; The preset threshold range includes a first preset threshold range and a second preset threshold range; Determining the landing point of the target aircraft according to the average headwind direction of each laser wind radar and a preset threshold range includes: If the second wind speed and the third wind speed do not satisfy the fourth preset condition, determining whether the average headwind direction of each laser wind measuring radar falls within the first preset threshold range; If the average headwind direction of each laser wind radar belongs to the first preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft; If the average headwind direction of each laser wind measuring radar does not fall within the first preset threshold range, determining whether the average headwind direction of each laser wind measuring radar falls within the second preset threshold range; If the average headwind direction of each laser wind measuring radar belongs to the second preset threshold range, the second landing point corresponding to the second preset threshold range is determined as the landing point of the target aircraft; If the average headwind direction of each laser wind measuring radar does not fall within the second preset threshold range, the first landing point corresponding to the first preset threshold range is determined as the landing point of the target aircraft.

7. A device for predicting an aircraft landing point, characterized in that: include: A wind speed information acquisition module, used to acquire wind speed information of a preset time length at a preset height using a laser wind measuring radar, wherein the wind speed information includes radial wind speed information in four directions; the laser wind measuring radar is installed at both ends of the airport runway; and the number of the laser wind measuring radars is not less than two; A horizontal information determination module, used to determine the horizontal wind speed and horizontal wind direction at the preset height according to the wind speed information; An average head-on information determination module is used to determine the average head-on wind speed and average head-on wind direction of each laser wind radar within the preset time period according to the horizontal wind speed, the horizontal wind direction and the true azimuth of each laser wind radar; The landing point determination module is used to determine the landing point of the target aircraft according to the average headwind speed and average headwind direction of each laser wind radar.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for predicting an aircraft landing point according to any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for predicting an aircraft landing point as described in any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the computer program implements the method for predicting an aircraft landing point according to any one of claims 1 to 6.

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