Method and device for obtaining noise area of ​​flight runway

Abstract

This application provides a method and apparatus for obtaining the noise region of a flight runway. For the scenario of an aircraft taking off from the runway, a first takeoff noise region corresponding to the aircraft's closest takeoff position and a second takeoff noise region corresponding to the aircraft's furthest takeoff position are obtained. Based on the first and second takeoff noise regions, a third takeoff noise region corresponding to the aircraft's first intermediate position is obtained. The first, second, and third takeoff noise regions are then merged to obtain the total takeoff noise region of the aircraft. For the scenario of an aircraft landing on the runway, the total landing noise region of the aircraft is obtained. The total noise region of the flight runway is obtained based on the total takeoff noise region and / or the total landing noise region. In this way, the noise region of the flight runway can be accurately obtained, and the scope of airport noise involved in the airport can be accurately determined, thereby assisting in the assessment of the environmental impact of airport noise and in airport site selection.

Description

Technical Field

[0001] This application relates to the field of computer technology, and in particular to a method and apparatus for obtaining the noise area of ​​an airstrip. Background Technology

[0002] With rapid economic development, civil aviation has become the preferred mode of travel for many passengers as a convenient and efficient mode of transportation. In order to further improve the convenience of civil aviation, many cities have begun to build or expand airports.

[0003] However, the take-off and landing of aircraft at airports generate airport noise, which causes a certain degree of noise pollution. Moreover, with the increase in flights, airport noise has an increasing impact on residents around the airport, affecting their normal lives.

[0004] Gradually, the side effects of airport noise have become a major factor restricting the sustainable and green development of the aviation industry. At the same time, airport noise has become a serious social problem both domestically and internationally. Summary of the Invention

[0005] This application discloses a method and apparatus for obtaining the noise zone of an airstrip.

[0006] In a first aspect, this application discloses a method for obtaining the noise region of a flight runway, the method comprising:

[0007] For scenarios where an aircraft takes off from a runway, the first takeoff noise region corresponding to the closest takeoff position of the aircraft is obtained, and the second takeoff noise region corresponding to the furthest takeoff position of the aircraft is obtained. The noise in the first takeoff noise region is greater than or equal to the preset maximum tolerance decibel, and the noise in the second takeoff noise region is greater than or equal to the preset maximum tolerance decibel.

[0008] Based on the first takeoff noise region and the second takeoff noise region, a third takeoff noise region corresponding to the first intermediate position of the aircraft is obtained. The first intermediate position includes the position between the closest position to the ground and the furthest position from the ground. The noise in the third takeoff noise region is greater than or equal to the preset maximum tolerable decibel.

[0009] The first takeoff noise region, the second takeoff noise region, and the third takeoff noise region are merged to obtain the total takeoff noise region of the aircraft.

[0010] For the scenario of an aircraft landing on a runway, the first landing noise region corresponding to the nearest landing position of the aircraft is obtained, and the second landing noise region corresponding to the farthest landing position of the aircraft is obtained. The noise in the first landing noise region is greater than or equal to the preset maximum tolerance decibel, and the noise in the second landing noise region is greater than or equal to the preset maximum tolerance decibel.

[0011] Based on the first landing noise region and the second landing noise region, a third landing noise region corresponding to the second intermediate position of the aircraft is obtained. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise region is greater than or equal to the preset maximum tolerable decibel.

[0012] The first landing noise region, the second landing noise region, and the third landing noise region are merged to obtain the total landing noise region of the aircraft.

[0013] The total noise area of ​​the runway is obtained based on the total noise area of ​​the aircraft during takeoff and / or the total noise area of ​​the aircraft during landing.

[0014] Secondly, this application discloses an apparatus for acquiring the noise area of ​​a flight runway, the apparatus comprising:

[0015] The first acquisition module is used to acquire, for the scenario of the aircraft taking off on the runway, the first takeoff noise area corresponding to the closest takeoff position of the aircraft and the second takeoff noise area corresponding to the furthest takeoff position of the aircraft. The noise in the first takeoff noise area is greater than or equal to the preset maximum tolerance decibel, and the noise in the second takeoff noise area is greater than or equal to the preset maximum tolerance decibel.

[0016] The second acquisition module is used to acquire the third takeoff noise area corresponding to the first intermediate position of the aircraft based on the first takeoff noise area and the second takeoff noise area. The first intermediate position includes the position between the closest takeoff position and the furthest takeoff position. The noise in the third takeoff noise area is greater than or equal to the preset maximum tolerable decibel.

[0017] The first fusion module is used to merge the first takeoff noise region, the second takeoff noise region and the third takeoff noise region to obtain the total takeoff noise region of the aircraft.

[0018] The third acquisition module is used to acquire, for the scenario of the aircraft landing on the runway, the first landing noise area corresponding to the nearest landing position of the aircraft and the second landing noise area corresponding to the farthest landing position of the aircraft. The noise in the first landing noise area is greater than or equal to the preset maximum tolerable decibel, and the noise in the second landing noise area is greater than or equal to the preset maximum tolerable decibel.

[0019] The fourth acquisition module is used to acquire the third landing noise area corresponding to the second intermediate position of the aircraft based on the first landing noise area and the second landing noise area. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise area is greater than or equal to the preset maximum tolerable decibel.

[0020] The second fusion module is used to fuse the first landing noise region, the second landing noise region and the third landing noise region to obtain the total landing noise region of the aircraft.

[0021] The fifth acquisition module is used to acquire the total noise area of ​​the runway based on the total noise area of ​​the aircraft's takeoff and / or the total noise area of ​​the aircraft's landing.

[0022] Thirdly, this application discloses an electronic device comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to perform the method as described in any of the preceding aspects.

[0023] Fourthly, this application discloses a non-transitory computer-readable storage medium in which, when the instructions in the storage medium are executed by a processor of an electronic device, enable the electronic device to perform the methods described in any of the preceding aspects.

[0024] Fifthly, this application discloses a computer program product in which, when the instructions in the computer program product are executed by a processor of an electronic device, the electronic device is enabled to perform the method described in any of the preceding aspects.

[0025] The technical solution provided in this application may include the following beneficial effects:

[0026] In this application, for the scenario of an aircraft taking off from a runway, a first takeoff noise region corresponding to the aircraft's closest takeoff position and a second takeoff noise region corresponding to the aircraft's farthest takeoff position are obtained. The noise in the first takeoff noise region is greater than or equal to a preset maximum tolerable decibel. The noise in the second takeoff noise region is also greater than or equal to a preset maximum tolerable decibel. Based on the first and second takeoff noise regions, a third takeoff noise region corresponding to a first intermediate position of the aircraft is obtained. The first intermediate position includes the position between the closest takeoff position and the farthest takeoff position. The noise in the third takeoff noise region is also greater than or equal to a preset maximum tolerable decibel. The first, second, and third takeoff noise regions are merged to obtain the total takeoff noise region of the aircraft. For the scenario of an aircraft landing from a runway, a first landing noise region corresponding to the aircraft's closest landing position and a second landing noise region corresponding to the aircraft's farthest landing position are obtained. The noise level in the first landing noise area is greater than or equal to the preset maximum tolerance decibel level, and the noise level in the second landing noise area is greater than or equal to the preset maximum tolerance decibel level. Based on the first landing noise area and the second landing noise area, a third landing noise area corresponding to the second intermediate position of the aircraft is obtained. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise level in the third landing noise area is greater than or equal to the preset maximum tolerance decibel level. The first landing noise area, the second landing noise area, and the third landing noise area are merged to obtain the total landing noise area of ​​the aircraft. The total noise area of ​​the runway is obtained based on the total takeoff noise area of ​​the aircraft and / or the total landing noise area of ​​the aircraft.

[0027] This application allows for the accurate determination of the noise zone of a flight runway and the extent of airport noise, thereby assisting in the assessment of the environmental impact of airport noise and aiding in airport site selection. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating the steps of a method for obtaining the noise region of a flight runway according to this application.

[0029] Figure 2 This is a schematic diagram of the total takeoff noise area in a scenario of an aircraft taking off, as described in this application.

[0030] Figure 3 This is a schematic diagram of the total landing noise area in a scenario of an aircraft landing, as described in this application.

[0031] Figure 4 This is a flowchart of drawing noise contour lines for an airstrip, as described in this application.

[0032] Figure 5This is a structural block diagram of a noise region acquisition device for a flight runway according to this application.

[0033] Figure 6 This is a block diagram of an electronic device according to this application.

[0034] Figure 7 This is a block diagram of an electronic device according to this application. Detailed Implementation

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] The current method for dealing with airport noise is to install soundproofing facilities to reduce the noise generated during aircraft takeoff and landing, but this still cannot solve the actual problem.

[0037] On the other hand, the inventors discovered that the problem of airport noise affecting surrounding residents can be avoided when selecting an airport site. For example, when selecting an airport site, the range of airport noise involved in the airport can be determined, and the impact on surrounding residents can be estimated. If the impact on surrounding residents is small or non-existent, it means that the site selection is appropriate and meets the noise requirements. Otherwise, it is determined that the site selection is inappropriate and does not meet the noise requirements, and a new site selection is carried out until the site meets the noise requirements.

[0038] In order to determine the range of airport noise involved in an airport, the inventors discovered that since aircraft take-off and landing are carried out on the airport's runway, determining the range of airport noise involved in an airport is essentially the same as determining the noise zone of the airport's runway.

[0039] Reference Figure 1 The diagram illustrates a flowchart of a method for obtaining a noise region of a flight runway according to this application. This method can be applied to electronic devices and may include the following steps:

[0040] In step S101, for the scenario where the aircraft takes off from the runway, a first takeoff noise region corresponding to the aircraft's closest takeoff position is obtained, and a second takeoff noise region corresponding to the aircraft's furthest takeoff position is obtained. The noise in the first takeoff noise region is greater than or equal to a preset maximum tolerable decibel. The noise in the second takeoff noise region is greater than or equal to a preset maximum tolerable decibel.

[0041] The noise outside the first takeoff noise zone is less than the preset maximum tolerable decibel.

[0042] The noise outside the second takeoff noise zone is less than the preset maximum tolerable decibel.

[0043] The maximum tolerable decibel level may include 70 dB or 75 dB, and the specific value can be determined according to the actual situation. This application does not limit this value.

[0044] In a scenario where an aircraft takes off from a runway, the aircraft first comes to a standstill on the center line of the runway (stationary in the center of the runway). The aircraft's engines start, and then the aircraft accelerates. After reaching the takeoff speed, the aircraft takes off. The position where the aircraft just takes off can be considered the takeoff position.

[0045] A runway is a straight line with a certain length. For any type of aircraft that needs to take off from a runway, even if the aircraft starts accelerating from the starting point of the runway, it still needs to accelerate on the ground for at least a certain distance before it can take off. That is, the "at least a certain distance" is a fixed value that is determined when the aircraft leaves the factory. The position on the runway that is "at least a certain distance" away from the starting point of the runway is the closest takeoff position of the aircraft.

[0046] In addition, the length of the runway is limited. If this type of aircraft takes off near the end of the runway, it may cause a flight accident. Therefore, this type of aircraft needs to take off at least a certain distance from the end of the runway. In other words, the "at least a certain distance" is a fixed value that is determined when the aircraft leaves the factory. Thus, the position on the runway at the "at least a certain distance" distance from the end of the runway is the farthest position of this type of aircraft.

[0047] For every other type of aircraft that needs to take off from a runway.

[0048] The type of aircraft that needs to take off from the runway can be determined according to the actual situation, such as the specifications of the runway or the business decisions of the airport to which the runway belongs. This application does not limit this.

[0049] In one embodiment of this application, obtaining the first takeoff noise region corresponding to the aircraft's nearest takeoff position can be achieved through the following process:

[0050] 1011. Determine the takeoff altitude of the aircraft. If the aircraft's takeoff altitude is less than or equal to its corresponding takeoff altitude, there will be noise on the ground generated by the aircraft that exceeds the preset maximum tolerable decibel level.

[0051] When the aircraft is at an altitude greater than the takeoff altitude during takeoff, there is no noise on the ground exceeding the preset maximum tolerable decibel level generated by the aircraft.

[0052] For any type of aircraft that needs to take off from a runway, the corresponding takeoff altitude for that aircraft type can be determined in advance. If the aircraft's takeoff altitude is less than or equal to this takeoff altitude, noise generated by that aircraft exceeding the preset maximum tolerable decibel level will be present on the ground. If the aircraft's takeoff altitude is greater than this takeoff altitude, there will be no noise generated by that aircraft exceeding the preset maximum tolerable decibel level on the ground. In other words, the corresponding takeoff altitude for that aircraft type is obtained through multiple experimental tests after the preset maximum tolerable decibel level is known; the specific testing methods will not be detailed here.

[0053] In addition, obtain the model number of the aircraft and the maximum tolerable decibel level for the runway. The maximum tolerable decibel level for the runway is set manually, for example, according to legal regulations, or based on consultation with residents around the runway.

[0054] Then, the model of the aircraft, the maximum tolerable decibel level of the runway, and the corresponding takeoff altitude of the aircraft model can be combined into corresponding entries and stored in the correspondence between the aircraft model, the maximum tolerable decibel level, and the takeoff altitude.

[0055] The same applies to every other type of aircraft that needs to take off from a popular runway.

[0056] Thus, in this step, the model of one of the aircraft types that needs to take off on the runway can be determined. Then, in the correspondence between the aircraft type, maximum tolerable decibels and takeoff altitude, the takeoff altitude corresponding to the aircraft type and the preset maximum tolerable decibels can be found to obtain the takeoff altitude corresponding to the aircraft type.

[0057] For example, if the takeoff altitude of this aircraft model is 800 meters, and the aircraft generates noise greater than 70 decibels on the ground when the takeoff altitude is less than or equal to 800 meters, then the aircraft generates noise greater than 70 decibels on the ground. If the aircraft generates noise greater than 800 decibels on the ground when the takeoff altitude is greater than 800 meters, then the aircraft generates noise greater than 70 decibels on the ground.

[0058] 1012. Determine the takeoff direction distance of the aircraft based on the takeoff altitude of the aircraft. The takeoff direction distance of the aircraft is: the distance between the position of the aircraft on the ground when it starts to perform takeoff operations and the projected position of the aircraft on the ground when it reaches the takeoff altitude of the aircraft.

[0059] The position of an aircraft on the ground when it begins to perform takeoff operations can be understood as: the position where the aircraft is stationary when it first begins to perform takeoff operations, with the aircraft's orientation aligned with the length of the runway, such as the position when the aircraft has not yet moved and its engines are already running.

[0060] The takeoff direction is horizontal.

[0061] Different models of aircraft have different takeoff altitudes, and the takeoff directions of different models of aircraft are different.

[0062] Therefore, for any type of aircraft that needs to take off from a popular runway, the takeoff direction distance for that aircraft type can be calculated in advance. Then, the aircraft type, its corresponding takeoff altitude, and its takeoff direction distance can be combined into a corresponding table and stored in the correspondence between aircraft type, takeoff altitude, and takeoff direction distance. The same applies to every other type of aircraft that needs to take off from a popular runway.

[0063] Thus, when determining the takeoff direction distance based on the takeoff altitude, the model of one of the aircraft types that needs to take off on the popular runway can be identified. Then, in the correspondence between the aircraft type, takeoff altitude, and takeoff direction distance, the takeoff direction distance corresponding to the aircraft type and the takeoff altitude of that aircraft type can be found.

[0064] For example, the distance in the takeoff direction of this type of aircraft is 7 kilometers, and the distance between "the position of this type of aircraft on the ground when it begins to perform takeoff operations" and "the projected position of this type of aircraft on the ground when it reaches the takeoff altitude of 800 meters corresponding to this type of aircraft" is 7 kilometers.

[0065] 1013. Determine the vertical distance corresponding to the aircraft. During the takeoff operation, before the aircraft leaves the ground, the noise generated by the aircraft within the vertical distance corresponding to the aircraft in the vertical direction is greater than or equal to the preset maximum tolerable decibel. The vertical direction is the horizontal direction, and the vertical direction is perpendicular to the takeoff direction.

[0066] At a distance in the vertical direction corresponding to the aircraft, the noise generated by the aircraft is less than the preset maximum tolerable decibel.

[0067] For any type of aircraft that needs to take off from a runway, the corresponding vertical distance for that aircraft type can be determined in advance. During the takeoff process, before the aircraft leaves the ground, within the corresponding vertical distance, the noise generated by the aircraft type is greater than or equal to the preset maximum tolerable decibel level; outside this vertical distance, the noise generated is less than the preset maximum tolerable decibel level. The corresponding vertical distance can be obtained through multiple experimental tests; the specific testing methods will not be detailed here.

[0068] In addition, obtain the model number of the aircraft and the maximum tolerable decibel level for the runway. The maximum tolerable decibel level for the runway is set manually, for example, according to legal regulations, or based on consultation with residents around the runway.

[0069] Then, the model of the aircraft, the maximum tolerable decibel level of the runway, and the corresponding vertical distance of the aircraft model can be combined into corresponding entries and stored in the correspondence between the aircraft model, the maximum tolerable decibel level, and the vertical distance.

[0070] The same applies to every other type of aircraft that needs to take off from a popular runway.

[0071] Thus, in this step, the model of one of the aircraft types that needs to take off on the runway can be determined. Then, in the correspondence between the aircraft type, the maximum tolerable decibel, and the vertical distance, the vertical distance corresponding to the model of the aircraft and the preset maximum tolerable decibel can be found to obtain the vertical distance corresponding to the aircraft type.

[0072] For example, the vertical distance corresponding to this type of aircraft can be 0.8 kilometers.

[0073] 1014. Based on the distance in the takeoff direction and the distance in the vertical direction corresponding to the aircraft, determine the first takeoff noise zone corresponding to the closest takeoff position of the aircraft.

[0074] In one example, in a scenario where an aircraft is performing a takeoff operation, the aircraft is stationary at a position on the runway, then starts its engines, accelerates on the ground, then climbs to the nearest takeoff position, then climbs to takeoff altitude, and continues to climb until it reaches cruising altitude.

[0075] Among them, from the stationary position to the nearest ground position, the shape of the noise area on the ground that is greater than or equal to the preset maximum tolerable decibel is a gradually increasing isosceles triangle, and from the nearest ground position to the projection position of the takeoff altitude on the ground, the shape of the noise area on the ground that is greater than or equal to the preset maximum tolerable decibel is a partially elliptical shape.

[0076] The length of the major semi-axis of the ellipse represents the distance in the takeoff direction corresponding to the aircraft, and the length of the minor semi-axis represents the distance in the vertical direction corresponding to the aircraft. For details, please refer to [link to relevant documentation]. Figure 2 As shown.

[0077] An example illustrating the noise impact area during aircraft takeoff: To minimize L... detect An assessment of the impact range of 70 dB was conducted. It was assumed that the aircraft climbed at a constant rate of climb to a position of 2500m, 22km from the airport. Using a flight noise calculation program, the impact range was obtained. max The sound pressure level at 800m is approximately 70dB. Assuming a climb rate, the distance X between the starting point and the takeoff point... max When the runway is 7km, the aircraft reaches an altitude of 800m. Therefore, after the aircraft takes off, the area with ground noise greater than 70dB is an elliptical region E1 with major and minor axes of 7km (distance from the takeoff point along the runway) and 0.8km (distance from the takeoff point perpendicular to the runway).

[0078] In addition, for the specific process of "obtaining the second takeoff noise area corresponding to the farthest position of the aircraft from the ground", please refer to the process of steps 1011 to 1014 of "obtaining the first takeoff noise area corresponding to the nearest position of the aircraft from the ground" mentioned above, which will not be described in detail here.

[0079] In step S102, based on the first takeoff noise region and the second takeoff noise region, a third takeoff noise region corresponding to the first intermediate position of the aircraft is obtained. The first intermediate position includes the position between the closest takeoff position and the furthest takeoff position. The noise in the third takeoff noise region is greater than or equal to the preset maximum tolerable decibel.

[0080] The noise outside the third takeoff noise zone is less than the preset maximum tolerable decibel.

[0081] In this step, a first position and a second position that are furthest from the runway can be determined within the first takeoff noise area. For example, the first position and the second position that are furthest from the centerline of the runway can be determined. The first position and the second position are located on opposite sides of the runway, for example, the first position is located on one side of the runway and the second position is located on the other side of the runway.

[0082] Furthermore, the third and fourth positions furthest from the runway can be determined within the second takeoff noise zone. For example, the third and fourth positions furthest from the runway centerline can be determined. The third and fourth positions are located on opposite sides of the runway, for example, the third position is located on one side of the runway and the fourth position is located on the other side of the runway.

[0083] The area enclosed by the first, second, third, and fourth positions is defined as the third takeoff noise zone.

[0084] Assuming that the first and third positions are located on one side of the runway, and the second and fourth positions are located on the other side of the runway, the rectangular area enclosed by the first, second, third, and fourth positions can be used as the third takeoff noise area. For example, the rectangular area formed by connecting the first and second positions, the second and fourth positions, the fourth and third positions, and the third and first positions can be used as the third takeoff noise area.

[0085] In step S103, the first takeoff noise region, the second takeoff noise region, and the third takeoff noise region are merged to obtain the total takeoff noise region of the aircraft.

[0086] For example, the union of the first takeoff noise region, the second takeoff noise region, and the third takeoff noise region can be obtained to get the total takeoff noise region of the aircraft.

[0087] In another embodiment of this application, the runway is a long straight line with two endpoints, such as a first endpoint and a second endpoint. When an aircraft takes off on the runway, it can take off from the first endpoint pointing to the second endpoint, or it can take off from the second endpoint pointing to the first endpoint.

[0088] Through the process of steps S101 to S102, the first takeoff noise region, the second takeoff noise region, and the third takeoff noise region in the scenario where the aircraft takes off from the first endpoint to the second endpoint on the runway can be obtained. Then, in step S103, the first takeoff noise region, the second takeoff noise region, and the third takeoff noise region in the scenario where the aircraft takes off from the first endpoint to the second endpoint on the runway can be merged to obtain the takeoff noise region from the first endpoint to the second endpoint.

[0089] Furthermore, a first takeoff noise region, a second takeoff noise region, and a third takeoff noise region can be obtained in the scenario where the aircraft takes off from the second endpoint to the first endpoint on the runway. Then, in step S103, the first takeoff noise region, the second takeoff noise region, and the third takeoff noise region in the scenario where the aircraft takes off from the second endpoint to the first endpoint on the runway can be merged to obtain the takeoff noise region from the second endpoint to the first endpoint.

[0090] Then, the takeoff noise region from the first endpoint to the second endpoint and the takeoff noise region from the second endpoint to the first endpoint can be merged to obtain the aircraft's takeoff noise fusion region.

[0091] Then, the total takeoff noise region of the aircraft can be obtained based on the aircraft's takeoff noise fusion region. For example, the aircraft's takeoff noise fusion region can be determined as the total takeoff noise region of the aircraft.

[0092] In another embodiment of this application, for any type of aircraft that needs to take off from the runway, the takeoff noise fusion region of that type of aircraft can be obtained through steps S101 to S103. The same applies to every other type of aircraft that needs to take off from the runway. In this way, the takeoff noise fusion region of each type of aircraft can be obtained separately.

[0093] Then, the union of the takeoff noise fusion regions of various aircraft models can be obtained, thus obtaining the total takeoff noise region of the aircraft.

[0094] In step S104, for the scenario of the aircraft landing on the runway, a first landing noise region corresponding to the nearest landing position of the aircraft is obtained, and a second landing noise region corresponding to the farthest landing position of the aircraft is obtained. The noise in the first landing noise region is greater than or equal to a preset maximum tolerable decibel, and the noise in the second landing noise region is greater than or equal to a preset maximum tolerable decibel.

[0095] The noise outside the first landing noise zone is less than the preset maximum tolerable decibel.

[0096] The noise outside the second landing noise zone is less than the preset maximum tolerable decibel.

[0097] The maximum tolerable decibel level may include 70 dB or 75 dB, and the specific value can be determined according to the actual situation. This application does not limit this value.

[0098] In a scenario where an aircraft is landing on a runway, the point where the aircraft just touches the ground can be considered the landing point.

[0099] A runway is a straight line with a certain length. For any type of aircraft that needs to land on a runway, the starting point of the runway is the closest point of takeoff for that type of aircraft.

[0100] In addition, the length of the runway is limited. If this type of aircraft lands near the end of the runway, it may cause a flight accident. Therefore, this type of aircraft needs to touch the ground and taxi at least a certain distance from the end of the runway. In other words, the "at least a certain distance" is a fixed value that is determined when the aircraft leaves the factory. Thus, the position on the runway at the "at least a certain distance" distance from the end of the runway is the farthest landing position of this type of aircraft.

[0101] For every other type of aircraft that needs to land on a runway.

[0102] The type of aircraft that needs to land on the runway can be determined according to the actual situation, such as the specifications of the runway or the operational requirements of the airport to which the runway belongs. This application does not impose any restrictions on this.

[0103] In one embodiment of this application, obtaining the first landing noise region corresponding to the nearest landing location of the aircraft can be achieved through the following process, including:

[0104] 1041. Determine the landing altitude of the aircraft. If the landing altitude of the aircraft is less than or equal to the landing altitude of the aircraft, there will be noise on the ground generated by the aircraft that exceeds the preset maximum tolerable decibel level.

[0105] When the aircraft descends at an altitude greater than the descent altitude, there is no noise on the ground exceeding the preset maximum tolerable decibel level generated by the aircraft.

[0106] For any type of aircraft to land on a runway, the corresponding landing altitude for that aircraft type can be determined in advance. If the aircraft's landing altitude is less than or equal to this landing altitude, noise exceeding the preset maximum tolerable decibel level will be present on the ground. If the aircraft's landing altitude is greater than this landing altitude, no noise exceeding the preset maximum tolerable decibel level will be present on the ground. In other words, the corresponding landing altitude for this aircraft type is determined through multiple experimental tests after the preset maximum tolerable decibel level is known; the specific testing methods will not be detailed here.

[0107] In addition, obtain the model number of the aircraft and the maximum tolerable decibel level for the runway. The maximum tolerable decibel level for the runway is set manually, for example, according to legal regulations, or based on consultation with residents around the runway.

[0108] Then, the model of the aircraft, the maximum tolerable decibel level of the runway, and the corresponding landing altitude of the aircraft model can be combined into corresponding entries and stored in the correspondence between the aircraft model, the maximum tolerable decibel level, and the landing altitude.

[0109] The same applies to every other type of aircraft that needs to land on a popular runway.

[0110] Thus, in this step, the model of one of the aircraft types that needs to land on the runway can be determined. Then, in the correspondence between the aircraft type, maximum tolerable decibels and landing altitude, the landing altitude corresponding to the aircraft type and the preset maximum tolerable decibels can be found to obtain the landing altitude corresponding to the aircraft type.

[0111] For example, if the landing altitude of this aircraft model is 750 meters, and the landing altitude is less than or equal to 750 meters, there will be noise exceeding 70 decibels generated by the aircraft on the ground. If the landing altitude is greater than 750 meters, there will be no noise exceeding 70 decibels generated by the aircraft on the ground.

[0112] Alternatively, for example, if the landing altitude of this type of aircraft is 700 meters, and the landing altitude is less than or equal to 700 meters, there will be noise on the ground exceeding 70 decibels generated by the aircraft. If the landing altitude is greater than 700 meters, there will be no noise on the ground exceeding 70 decibels generated by the aircraft.

[0113] 1042. Determine the landing direction distance of the aircraft based on the landing altitude of the aircraft. The landing direction distance of the aircraft is the distance between the projected position of the aircraft on the ground when the aircraft reaches the landing altitude and the position where the aircraft touches the ground.

[0114] The landing direction is horizontal.

[0115] Different models of aircraft land at different altitudes, and the landing directions and distances of different models of aircraft also differ.

[0116] Therefore, for any type of aircraft that needs to land on a popular runway, the landing direction distance for that aircraft type can be calculated in advance. Then, the aircraft type, the corresponding landing altitude, and the landing direction distance can be combined into a corresponding table entry and stored in the correspondence between aircraft type, landing altitude, and landing direction distance. The same process applies to every other type of aircraft that needs to land on a popular runway.

[0117] Thus, when determining the landing direction distance based on the landing altitude, the model of one of the aircraft types that needs to land on the popular runway can be identified. Then, in the correspondence between the aircraft type, landing altitude, and landing direction distance, the landing direction distance corresponding to the aircraft type and the landing altitude of that aircraft type can be found.

[0118] For example, the distance in the landing direction of this type of aircraft is 7.6 kilometers. The distance between "the position of this type of aircraft on the ground when it begins to perform the landing operation" and "the projected position of this type of aircraft on the ground when it reaches the landing altitude of 700 meters corresponding to this type of aircraft" is 7.6 kilometers.

[0119] 1043. Determine the vertical distance corresponding to the aircraft. During the landing and taxiing process of the aircraft, within the vertical distance corresponding to the aircraft in the vertical direction, the noise generated by the aircraft is greater than or equal to the preset maximum tolerable decibel. The vertical direction is the horizontal direction, and the vertical direction is perpendicular to the landing direction.

[0120] At a distance in the vertical direction corresponding to the aircraft, the noise generated by the aircraft is less than the preset maximum tolerable decibel.

[0121] For any type of aircraft to land on a runway, the corresponding vertical distance for that aircraft type can be determined in advance. During the landing and taxiing process of that aircraft type, within the corresponding vertical distance, the noise generated by that aircraft type is greater than or equal to the preset maximum tolerable decibel level; outside the corresponding vertical distance, the noise generated by that aircraft type is less than the preset maximum tolerable decibel level. The corresponding vertical distance for that aircraft type can be obtained through multiple experimental tests; the specific testing methods will not be detailed here.

[0122] In addition, obtain the model number of the aircraft and the maximum tolerable decibel level for the runway. The maximum tolerable decibel level for the runway is set manually, for example, according to legal regulations, or based on consultation with residents around the runway.

[0123] Then, the model of the aircraft, the maximum tolerable decibel level of the runway, and the corresponding vertical distance of the aircraft model can be combined into corresponding entries and stored in the correspondence between the aircraft model, the maximum tolerable decibel level, and the vertical distance.

[0124] The same applies to every other type of aircraft that needs to land on a popular runway.

[0125] Thus, in this step, the model of one of the aircraft types that needs to land on the runway can be determined. Then, in the correspondence between the aircraft type, the maximum tolerable decibel, and the vertical distance, the vertical distance corresponding to the aircraft type and the preset maximum tolerable decibel can be found to obtain the vertical distance corresponding to the aircraft type.

[0126] For example, the vertical distance corresponding to this type of aircraft can be 0.4 kilometers.

[0127] 1044. Based on the distance in the landing direction and the distance in the vertical direction corresponding to the aircraft, determine the first landing noise area corresponding to the nearest landing position of the aircraft.

[0128] In one example, in a scenario where an aircraft is performing a landing operation, the aircraft lands at the nearest landing location and then taxis.

[0129] Among them, the closest landing position from the projection of the descent height on the ground is the child. The shape of the noise area on the ground that is greater than or equal to the preset maximum tolerable decibels is partially elliptical. After contact with the ground, the shape of the noise area on the ground that is greater than or equal to the preset maximum tolerable decibels is a gradually increasing isosceles triangle.

[0130] The length of the major semi-axis of the ellipse represents the distance in the descent direction corresponding to the aircraft, and the length of the minor semi-axis represents the distance in the vertical direction corresponding to the aircraft. For details, please refer to [link to relevant documentation]. Figure 3 As shown.

[0131] See Figure 3 To illustrate the noise impact area during aircraft approach (landing): Similar to takeoff, the area with ground noise greater than 70 dB during aircraft approach is also an elliptical region E2. However, because the glide angle during approach (e.g., 3° ​​glide angle) is smaller than the climb angle during takeoff, the major axis of E2 is longer than the major axis of E1. Therefore, X... max = 7.6km (distance from the landing point along the runway). Because the aircraft is quieter during approach than during takeoff, the minor axis of E2 is shorter than that of E1. At this time, d max= 400m (distance from the landing point in the direction perpendicular to the runway).

[0132] In addition, for the specific process of "obtaining the second landing noise area corresponding to the farthest landing position of the aircraft", please refer to the process of steps 1041 to 1044 of "obtaining the first landing noise area corresponding to the nearest landing position of the aircraft" mentioned above, which will not be described in detail here.

[0133] In step S105, based on the first landing noise region and the second landing noise region, a third landing noise region corresponding to the second intermediate position of the aircraft is obtained. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise region is greater than or equal to the preset maximum tolerable decibel.

[0134] The noise outside the third landing noise zone is less than the preset maximum tolerable decibel.

[0135] In this step, the fifth and sixth positions, which are furthest from the runway, can be determined within the first landing noise region. For example, the fifth and sixth positions, which are furthest from the runway centerline, can be determined. The fifth and sixth positions are located on opposite sides of the runway; for example, the fifth position is located on one side of the runway, and the sixth position is located on the other side.

[0136] Furthermore, the seventh and eighth positions, which are furthest from the runway, can be determined within the second landing noise zone. For example, the seventh and eighth positions, which are furthest from the runway centerline, can be determined. The seventh and eighth positions are located on opposite sides of the runway, for example, the seventh position is located on one side of the runway and the eighth position is located on the other side of the runway.

[0137] The area enclosed by the fifth, sixth, seventh, and eighth positions is defined as the third landing noise region.

[0138] Assuming that positions 5 and 7 are located on one side of the runway, and positions 6 and 8 are located on the other side of the runway, the rectangular area enclosed by positions 5, 6, 7, and 8 can be considered as the third landing noise area. For example, lines connecting positions 5 and 6, positions 6 and 8, positions 8 and 7, and positions 7 and 5 form a rectangular area, which is then considered as the third landing noise area.

[0139] In step S106, the first landing noise region, the second landing noise region, and the third landing noise region are merged to obtain the total landing noise region of the aircraft.

[0140] For example, the union of the first landing noise region, the second landing noise region, and the third landing noise region can be obtained to get the total landing noise region of the aircraft.

[0141] In another embodiment of this application, the runway is a long straight line with two endpoints, such as a first endpoint and a second endpoint. When an aircraft lands on the runway, it can land in a direction from the first endpoint to the second endpoint, or it can land in a direction from the second endpoint to the first endpoint.

[0142] Through the process of steps S104 to S105, the first landing noise region, the second landing noise region, and the third landing noise region in the scenario of the aircraft landing on the runway from the first endpoint to the second endpoint can be obtained. Then, in step S106, the first landing noise region, the second landing noise region, and the third landing noise region in the scenario of the aircraft landing on the runway from the first endpoint to the second endpoint can be merged to obtain the landing noise region from the first endpoint to the second endpoint.

[0143] Furthermore, a first landing noise region, a second landing noise region, and a third landing noise region can be obtained in the scenario where the aircraft lands on the runway from the second endpoint to the first endpoint. Then, in step S106, the first landing noise region, the second landing noise region, and the third landing noise region in the scenario where the aircraft lands on the runway from the second endpoint to the first endpoint can be fused to obtain the landing noise region from the second endpoint to the first endpoint.

[0144] Then, the landing noise region from the first endpoint to the second endpoint and the landing noise region from the second endpoint to the first endpoint can be merged to obtain the landing noise fusion region of the aircraft.

[0145] Then, the total landing noise region of the aircraft can be obtained based on the aircraft's landing noise fusion region. For example, the landing noise fusion region of the aircraft can be determined as the total landing noise region of the aircraft.

[0146] In another embodiment of this application, for any type of aircraft that needs to land on the runway, the landing noise fusion region of that type of aircraft can be obtained through steps S104 to S106. The same applies to every other type of aircraft that needs to land on the runway. In this way, the landing noise fusion region of each type of aircraft can be obtained separately.

[0147] Then, the union of the landing noise fusion regions of various aircraft models can be obtained, thus obtaining the total landing noise region of the aircraft.

[0148] In this application, steps S101 and S104 can be executed in parallel or one after the other.

[0149] After completing step S101, step S102 can be executed, and after completing step S102, step S103 can be executed.

[0150] After completing step S104, step S105 can be executed, and after completing step S105, step S106 can be executed.

[0151] After completing steps S103 and S106, step S107 can be executed.

[0152] In step S107, the total noise area of ​​the runway is obtained based on the total noise area of ​​the aircraft's takeoff and / or the total noise area of ​​the aircraft's landing.

[0153] In one embodiment of this application, the total noise area of ​​the aircraft takeoff is defined as the total noise area of ​​the runway.

[0154] Alternatively, in another embodiment of this application, the total landing noise area of ​​the aircraft is defined as the total noise area of ​​the runway.

[0155] Alternatively, in another embodiment of this application, the total noise region of the aircraft during takeoff and the total noise region of the aircraft during landing are merged, for example, by obtaining the union of the total noise region during takeoff and the total noise region during landing, to obtain the total noise region of the runway.

[0156] This application allows for the accurate determination of the noise zone of a flight runway and the extent of airport noise, thereby assisting in the assessment of the environmental impact of airport noise and aiding in airport site selection.

[0157] The present application's solution is illustrated by a specific embodiment, but this is not intended to limit the scope of protection of the present application. See also Figure 4 The process includes:

[0158] Step 1: Selection of Spatial Reference Coordinate System. The geographic coordinate system is set to GCS_WGS_1984, and the projected coordinate system is set to WGS_1984_UTM_Zone_50N. More specifically, the UTM projection zone number in the projected coordinate system is equal to "(integer part of longitude / 6) + 31". Since the longitude of Beijing Capital International Airport is approximately 116°, the UTM projection zone number = floor(116 / 6) + 31 = 19 + 31 = 50. The spatial reference obtained in this step serves as the model parameter for the noise contour model.

[0159] Step 2: Obtain airport runway line vector files. Specifically, using electronic satellite maps as the standard base map, the three runways of Beijing Capital International Airport are digitized and edited in GIS software, generating a separate line vector file (polyline shapefile) for each runway. The geographic coordinate system of each line vector file is set to GCS_WGS_1984, and the projected coordinate system is set to WGS_1984_UTM_Zone_50N. The following steps take Runway 2 of Beijing Capital International Airport as an example to draw its 70dB ground noise contour lines. The airport runway line vector files obtained in this step are used as model parameters for the noise contour line model.

[0160] Step 3: Obtain the "Runway Azimuth" (angle rotated clockwise in the direction of true north) parameter value of the airport runway line vector obtained in Step 2. Specifically, use the "Direction and Distance of Lines" function of the "COGO Report" tool in the "COGO" toolbox. First, click the southern endpoint of Runway 2, then click the northern endpoint of Runway 2. This will give you the angle of Runway 2 rotating counterclockwise in the direction of true east, which is 96.53°. This needs to be converted to the angle of rotation clockwise in the direction of true north. The conversion process is 180° - (96.53° - 90°) = 173.47°. The airport runway azimuth obtained in this step will be used as a model parameter for the noise contour model.

[0161] Step 4: Draw the elliptical region where the runway ground noise is greater than 70dB when the aircraft takes off.

[0162] Includes the following steps:

[0163] Step 4.1: Use the "Feature Vertex to Point" tool to create a feature class containing points generated from a specified point or location of the input features. Specific parameter settings for this tool include: (1) Select "Airport Runway" for "Input Feature," which is the runway line vector generated in Step 1. (2) Select a pre-created local folder path for "Output Feature Class," such as "C: / output / End_Point1.shp". (3) Specify the location for creating output points for "Point Type," here selecting "ALL," meaning one point is created at each input feature vertex.

[0164] Step 4.2: Use the "Add XY Coordinates" tool to add the fields POINT_X and POINT_Y to the point input feature and calculate their values. Specific parameter settings for this tool include: selecting the "End_Point1.shp" file generated in Step 4.1 in "Input Features". This step adds the x and y coordinates of the two endpoints of runway 2 to the attribute table of the "End_Point1.shp" point feature as the fields POINT_X and POINT_Y.

[0165] Step 4.3: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "Output Feature 1" generated in Step 4.2 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Azimuth1" for "Field Name" to add the azimuth field of runway 2 to the input table / feature class. (3) Select "FLOAT" for "Field Type" to set the field type of the new field to floating point. (4) Set "Field Precision" to 10 to indicate the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5 to indicate the number of decimal places that can be stored in the field.

[0166] Step 4.4: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "End_Point1.shp" generated in Step 4.3 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Major_Axis1" for "Field Name," indicating that the major axis field of the elliptical area with runway ground noise greater than 70dB at the time of takeoff of the No. 2 runway aircraft will be added to the input table / feature class. (3) Select "FLOAT" for "Field Type," indicating that the field type of the new field is set to floating point. (4) Set "Field Precision" to 10, indicating the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5, indicating the number of decimal places that can be stored in the field.

[0167] Step 4.5: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "End_Point1.shp" generated in Step 4.4 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Minor_Axis1" for "Field Name" to add the minor axis field of the elliptical area with runway ground noise greater than 70dB during takeoff of the No. 2 runway aircraft to the input table / feature class. (3) Select "FLOAT" for "Field Type" to set the field type of the new field to floating point. (4) Set "Field Precision" to 10 to indicate the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5 to indicate the number of decimal places that can be stored in the field.

[0168] Step 4.6: Use the "Calculated Fields" tool to calculate field values ​​for feature classes, feature layers, or rasters. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point1.shp" generated in Step 4.5, representing the table or feature class from which the field will be updated via the new calculation. (2) "Field Name": Select the "Azimuth1" field created in Step 4.3, which will be updated via the new calculation. (3) "Expression": Select "Runway Azimuth" set in Step 3, used to create a calculated expression that fills the selected row with values.

[0169] Step 4.7: Use the "Calculated Fields" tool to calculate field values ​​for feature classes, feature layers, or rasters. Specific parameter settings for this tool include: (1) Select "End_Point1.shp" generated in Step 4.6 for "Input Table," representing the table or feature class from which the field will be updated through the new calculation. (2) Select the "Major_Axis1" field created in Step 4.4 for "Field Name," which will be updated through the new calculation. (3) Enter "7" for "Expression," representing the length of the ellipse's semi-major axis as 7km, used to create the calculated expression that fills the selected row with values.

[0170] Step 4.8: Use the "Calculated Fields" tool to calculate field values ​​for feature classes, feature layers, or rasters. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point1.shp" generated in Step 4.7, representing the table or feature class from which the field will be updated via the new calculation. (2) "Field Name": Select the "Minor_Axis1" field created in Step 4.5, which will be updated via the new calculation. (3) "Expression": Enter "0.8", representing the length of the minor axis of the ellipse as 0.8 km, used to create a calculated expression that fills the selected row with values.

[0171] Step 4.9: Use the "Table to Ellipse" tool to create a new feature class containing geodetic ellipse features constructed from the values ​​in the x-coordinate, y-coordinate, major axis, minor axis, and azimuth fields of the table. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point1.shp" generated in Step 4.8. (2) "Output Feature Class": Contains a geodetic ellipse represented as an augmented polyline, set here to "C:\output\TableToEllipse1". (3) "X Field": Select the "POINT_X" field created in Step 4.2. This is a numeric field in the input table containing the x-coordinate of the ellipse's center point used for positioning in the output coordinate system specified by the spatial reference parameters. (4) "Y Field": Select the "POINT_Y" field created in Step 4.2. This is a numeric field in the input table containing the y-coordinate of the ellipse's center point used for positioning in the output coordinate system specified by the spatial reference parameters. (5) Select the "Major_Axis1" field created in step 4.4 for "Main Field". This is a numeric field in the input table that contains the length of the major axis of the ellipse. (6) Select the "Minor_Axis1" field created in step 4.5 for "Secondary Field". This is a numeric field in the input table that contains the length of the minor axis of the ellipse. (7) Select "KILOMETERS" for "Distance Units", indicating that the unit of the values ​​in the major axis and minor axis fields is kilometers. (8) Select the "Azimuth1" field created in step 4.3 for "Azimuth Field". This is a numeric field in the input table that contains the azimuth value of the major axis rotation of the output ellipse, measured clockwise with north as the reference direction. (9) Select "DEGREES" for "Azimuth Units", indicating that the values ​​in the azimuth field are in decimal units. (10) Select the "Spatial Reference" model parameter created in step 1 as the spatial reference for the output feature class.

[0172] Step 4.10: Use the “Feature to Polygon_Wide Ellipse” tool to create a feature class containing polygons generated from the area enclosed by the input line or polygon features. The specific parameter settings for this tool include: (1) Select “TableToEllipse1” generated in step 4.9 for “Input Features”. (2) Set “Output Feature Class” to “C:\output\Ellipse_Polygon1”.

[0173] Step 5: Draw the elliptical region where the runway ground noise is greater than 70dB when the aircraft approaches.

[0174] Includes the following steps:

[0175] Step 5.1: Use the "Feature Vertex to Point" tool to create a feature class containing points generated from a specified point or location of the input features. Specific parameter settings for this tool include: (1) Select "Airport Runway" for "Input Feature," which is the runway line vector generated in Step 1. (2) Select a pre-created local folder path for "Output Feature Class," such as "C: / output / End_Point2.shp". (3) Specify the location for creating output points for "Point Type," here selecting "ALL," meaning one point is created at each input feature vertex.

[0176] Step 5.2: Use the "Add XY Coordinates" tool to add the fields POINT_X and POINT_Y to the point input feature and calculate their values. Specific parameter settings for this tool include: selecting the "End_Point2.shp" file generated in Step 5.1 in "Input Features". This step adds the x and y coordinates of the two endpoints of runway 2 to the attribute table of the "End_Point2.shp" point feature as the fields POINT_X and POINT_Y.

[0177] Step 5.3: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "Output Feature 2" generated in Step 5.2 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Azimuth2" for "Field Name" to add the azimuth field of runway 2 to the input table / feature class. (3) Select "FLOAT" for "Field Type" to set the field type of the new field to floating point. (4) Set "Field Precision" to 10 to indicate the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5 to indicate the number of decimal places that can be stored in the field.

[0178] Step 5.4: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "End_Point2.shp" generated in Step 5.3 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Major_Axis2" for "Field Name" to add the major axis field of the elliptical area with runway ground noise greater than 70dB during the approach of the No. 2 runway aircraft to the input table / feature class. (3) Select "FLOAT" for "Field Type" to set the field type of the new field to floating point. (4) Set "Field Precision" to 10 to indicate the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5 to indicate the number of decimal places that can be stored in the field.

[0179] Step 5.5: Use the "Add Field" tool to add a new field to a table or feature class table, feature layer, and / or raster with attribute tables. Specific parameter settings for this tool include: (1) Select "End_Point2.shp" generated in Step 5.4 for "Input Table" to select the input table or feature class to which the specified field will be added. (2) Enter "Minor_Axis2" for "Field Name" to add the minor axis field of the elliptical area with runway ground noise greater than 70dB during the approach of the No. 2 runway aircraft to the input table / feature class. (3) Select "FLOAT" for "Field Type" to set the field type of the new field to floating point. (4) Set "Field Precision" to 10 to indicate the number of digits that can be stored in the field. (5) Set "Field Decimal Places" to 5 to indicate the number of decimal places that can be stored in the field.

[0180] Step 5.6: Use the "Calculated Fields" tool to calculate field values ​​for a feature class, feature layer, or raster. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point2.shp" generated in Step 5.5, representing the table or feature class from which the field will be updated via the new calculation. (2) "Field Name": Select the "Azimuth2" field created in Step 5.3, which will be updated via the new calculation. (3) "Expression": Select "Runway Azimuth" set in Step 3, used to create a calculated expression that fills the selected row with values.

[0181] Step 5.7: Use the “Calculated Fields” tool to calculate field values ​​for a feature class, feature layer, or raster. Specific parameter settings for this tool include: (1) “Input Table”: Select “End_Point2.shp” generated in Step 5.6, representing the table or feature class from which the field will be updated via the new calculation. (2) “Field Name”: Select the “Major_Axis2” field created in Step 5.4, which will be updated via the new calculation. (3) “Expression”: Enter “7.6”, representing the length of the ellipse's major semi-axis as 7.6 km, used to create a calculation expression that fills the selected row with values.

[0182] Step 5.8: Use the "Calculated Fields" tool to calculate field values ​​for a feature class, feature layer, or raster. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point2.shp" generated in Step 5.7, representing the table or feature class from which the field will be updated via the new calculation. (2) "Field Name": Select the "Minor_Axis2" field created in Step 5.5, which will be updated via the new calculation. (3) "Expression": Enter "0.4", representing the length of the minor axis of the ellipse as 0.4 km, used to create a calculated expression that fills the selected row with values.

[0183] Step 5.9: Use the "Table to Ellipse" tool to create a new feature class containing geodetic ellipse features constructed from the values ​​in the x-coordinate, y-coordinate, major axis, minor axis, and azimuth fields of the table. Specific parameter settings for this tool include: (1) "Input Table": Select "End_Point2.shp" generated in Step 5.8. (2) "Output Feature Class": Contains a geodetic ellipse represented as an augmented polyline, set here to "C:\output\TableToEllipse2". (3) "X Field": Select the "POINT_X" field created in Step 5.2, a numeric field in the input table containing the x-coordinate of the ellipse's center point used for positioning in the output coordinate system specified by the spatial reference parameters. (4) "Y Field": Select the "POINT_Y" field created in Step 5.2, a numeric field in the input table containing the y-coordinate of the ellipse's center point used for positioning in the output coordinate system specified by the spatial reference parameters. (5) Select the "Major_Axis2" field created in step 5.4 for "Main Field". This is a numeric field in the input table that contains the length of the major axis of the ellipse. (6) Select the "Minor_Axis2" field created in step 5.5 for "Secondary Field". This is a numeric field in the input table that contains the length of the minor axis of the ellipse. (7) Select "KILOMETERS" for "Distance Units", indicating that the units for the major axis and minor axis fields are kilometers. (8) Select the "Azimuth2" field created in step 5.3 for "Azimuth Field". This is a numeric field in the input table that contains the azimuth value of the major axis rotation of the output ellipse, measured clockwise with north as the reference direction. (9) Select "DEGREES" for "Azimuth Units", indicating that the values ​​in the azimuth field are in decimal units. (10) Select the "Spatial Reference" model parameter created in step 1 as the spatial reference for the output feature class.

[0184] Step 5.10: Use the “Feature to Polygon_Wide Ellipse” tool to create a feature class containing polygons generated from the area enclosed by the input line or polygon features. The specific parameter settings for this tool include: (1) Select “TableToEllipse2” generated in step 5.9 for “Input Features”. (2) Set “Output Feature Class” to “C:\output\Ellipse_Polygon2”.

[0185] Step 6: Use the "Buffer_Rectangular_Buffer" tool, which creates a buffer polygon within a specified distance around the input features. Here, a rectangular buffer is created on both sides of the runway as the center line. The specific parameter settings for this tool include: (1) Select the "Airport Runway" model parameters created in Step 2 for "Input Features", which represents the input line features to be buffered. (2) Set "Output Feature Class" to "C:\output\Rectangular_Buffer", which is the feature class of the output buffer. (3) Select "Linear Unit" for "Distance", and enter 0.4, which is kilometers. This means that the distance between the input feature to be buffered is 0.4 km, which is equal to half the length of the minor axis of the elliptical area with runway ground noise greater than 70 dB when the aircraft takes off. (4) Select "FULL" for "Side Type", which will generate buffers on both sides of the line input features. (5) Select "FLAT" for "End Type", which sets the shape of the end buffer of the line input feature to flat or square and stops at the endpoint of the input line feature. (6) Select “PLANAR” for “Method” to specify the planar method for creating the buffer. If the input features are located in the projected coordinate system, a Euclidean buffer will be created. (7) Select “NONE” for “Merge Type” to indicate that overlap is not considered and each feature will have its own independent buffer.

[0186] Step 7: Merge and fuse the four ellipses and one rectangular vector drawn in steps 4, 5, and 6 to obtain the 70dB noise contour lines. This includes the following steps:

[0187] Step 7.1: Use the "Merge" tool, which merges multiple input datasets of the same data type into a new single output dataset. This tool can merge point, line, or polygon feature classes or tables. The specific parameter settings for this tool include: (1) Select "Ellipse_Polygon1" generated in Step 4.10, "Ellipse_Polygon2" generated in Step 5.10, and "Rectangular_Buffer" generated in Step 6 for "Input Datasets". This represents the input datasets to be merged into a new input dataset. (2) Set "Output Datasets" to "C:\output\Merge_Buffer", which represents the save path of the output dataset after merging all input datasets.

[0188] Step 7.2: Use the "Merge" tool, which aggregates features based on specified attributes. Specific parameter settings for this tool include: (1) Select "Merge_Buffer" generated in Step 7.1 as the "Input Features," representing the features to be aggregated. (2) Set "Output Feature Class" to "C:\output\Noise_Buffer.shp," indicating the save path of the feature class containing the aggregated features. (3) Select "Create Multi-Part Features," specifying that multiple parts are allowed in the output feature class. (4) Select "Cancel Line Split," setting the merging method for line features; lines are only merged when they share a common end vertex. The "Noise_Buffer.shp" file output in this step is a polygon vector feature; the boundary of this area is the 70dB noise contour line of the airport runway.

[0189] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions involved are not necessarily required by this application.

[0190] Reference Figure 5 The diagram shows a structural block diagram of a noise region acquisition device for a flight runway according to this application. The device includes:

[0191] The first acquisition module 11 is used to acquire, for the scenario of the aircraft taking off on the runway, the first takeoff noise area corresponding to the closest takeoff position of the aircraft and the second takeoff noise area corresponding to the furthest takeoff position of the aircraft. The noise in the first takeoff noise area is greater than or equal to a preset maximum tolerance decibel, and the noise in the second takeoff noise area is greater than or equal to a preset maximum tolerance decibel.

[0192] The second acquisition module 12 is used to acquire the third takeoff noise area corresponding to the first intermediate position of the aircraft based on the first takeoff noise area and the second takeoff noise area. The first intermediate position includes the position between the closest takeoff position and the furthest takeoff position. The noise in the third takeoff noise area is greater than or equal to the preset maximum tolerable decibel.

[0193] The first fusion module 13 is used to fuse the first takeoff noise region, the second takeoff noise region and the third takeoff noise region to obtain the total takeoff noise region of the aircraft.

[0194] The third acquisition module 14 is used to acquire, for the scenario of the aircraft landing on the runway, the first landing noise area corresponding to the nearest landing position of the aircraft and the second landing noise area corresponding to the farthest landing position of the aircraft, wherein the noise in the first landing noise area is greater than or equal to the preset maximum tolerance decibel and the noise in the second landing noise area is greater than or equal to the preset maximum tolerance decibel.

[0195] The fourth acquisition module 15 is used to acquire the third landing noise area corresponding to the second intermediate position of the aircraft based on the first landing noise area and the second landing noise area. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise area is greater than or equal to the preset maximum tolerable decibel.

[0196] The second fusion module 16 is used to fuse the first landing noise region, the second landing noise region and the third landing noise region to obtain the total landing noise region of the aircraft.

[0197] The fifth acquisition module 17 is used to acquire the total noise area of ​​the runway based on the total takeoff noise area of ​​the aircraft and / or the total landing noise area of ​​the aircraft.

[0198] In one optional implementation, the fifth acquisition module includes:

[0199] The first determining unit is used to determine the total noise area of ​​the aircraft takeoff as the total noise area of ​​the runway;

[0200] or,

[0201] The second determining unit is used to determine the total noise area of ​​the aircraft landing as the total noise area of ​​the runway.

[0202] or,

[0203] The fusion unit is used to merge the total noise region of the aircraft's takeoff and landing to obtain the total noise region of the runway.

[0204] In an optional implementation, the first acquisition module includes:

[0205] The third determining unit is used to determine the takeoff altitude of the aircraft. In the case where the altitude of the aircraft during takeoff is less than or equal to the takeoff altitude of the aircraft, there is noise on the ground generated by the aircraft that is greater than the preset maximum tolerable decibel.

[0206] The fourth determining unit is used to determine the takeoff direction distance of the aircraft based on the takeoff altitude of the aircraft. The takeoff direction distance of the aircraft is the distance between the position of the aircraft on the ground when it starts to perform takeoff operations and the projected position of the aircraft on the ground when it reaches the takeoff altitude of the aircraft.

[0207] The fifth determining unit is used to determine the vertical distance corresponding to the aircraft. During the take-off operation of the aircraft before it leaves the ground, the noise generated by the aircraft is greater than or equal to the preset maximum tolerable decibel within the vertical distance corresponding to the aircraft in the vertical direction. The vertical direction is the horizontal direction, and the vertical direction is perpendicular to the take-off direction.

[0208] The sixth determining unit is used to determine the first takeoff noise region corresponding to the nearest takeoff position of the aircraft based on the takeoff direction distance and the vertical direction distance corresponding to the aircraft.

[0209] In one optional implementation, the third determining unit includes:

[0210] The first determining subunit is used to determine the model of the aircraft;

[0211] The first search subunit is used to search for the takeoff altitude corresponding to the aircraft model and the preset maximum tolerable decibel level in the correspondence between the aircraft model, the maximum tolerable decibel level and the takeoff altitude.

[0212] In one optional implementation, the fourth determining unit includes:

[0213] The second determining subunit is used to determine the model of the aircraft;

[0214] The second search subunit is used to find the takeoff direction distance corresponding to the aircraft model and the takeoff altitude in the correspondence between the aircraft model, takeoff altitude and takeoff direction distance.

[0215] In one optional implementation, the fifth determining unit includes:

[0216] The third determining subunit is used to determine the model of the aircraft;

[0217] The third search subunit is used to find the vertical distance corresponding to the aircraft model and the preset maximum tolerance decibel in the correspondence between the aircraft model, the maximum tolerance decibel and the vertical distance.

[0218] In one optional implementation, the second acquisition module includes:

[0219] The seventh determining unit is used to determine the first position and the second position that are farthest from the runway in the first takeoff noise area; the first position is located on one side of the runway and the second position is located on the other side of the runway.

[0220] The eighth determining unit is used to determine the third and fourth positions, which are farthest from the runway, in the second takeoff noise area; the third position is located on one side of the runway, and the fourth position is located on the other side of the runway.

[0221] The ninth determining unit is used to determine the area enclosed by the first position, the second position, the third position, and the fourth position as the third takeoff noise area.

[0222] In this application, for the scenario of an aircraft taking off from a runway, a first takeoff noise region corresponding to the aircraft's closest takeoff position and a second takeoff noise region corresponding to the aircraft's farthest takeoff position are obtained. The noise in the first takeoff noise region is greater than or equal to a preset maximum tolerable decibel. The noise in the second takeoff noise region is also greater than or equal to a preset maximum tolerable decibel. Based on the first and second takeoff noise regions, a third takeoff noise region corresponding to a first intermediate position of the aircraft is obtained. The first intermediate position includes the position between the closest takeoff position and the farthest takeoff position. The noise in the third takeoff noise region is also greater than or equal to a preset maximum tolerable decibel. The first, second, and third takeoff noise regions are merged to obtain the total takeoff noise region of the aircraft. For the scenario of an aircraft landing from a runway, a first landing noise region corresponding to the aircraft's closest landing position and a second landing noise region corresponding to the aircraft's farthest landing position are obtained. The noise level in the first landing noise area is greater than or equal to the preset maximum tolerance decibel level, and the noise level in the second landing noise area is greater than or equal to the preset maximum tolerance decibel level. Based on the first landing noise area and the second landing noise area, a third landing noise area corresponding to the second intermediate position of the aircraft is obtained. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise level in the third landing noise area is greater than or equal to the preset maximum tolerance decibel level. The first landing noise area, the second landing noise area, and the third landing noise area are merged to obtain the total landing noise area of ​​the aircraft. The total noise area of ​​the runway is obtained based on the total takeoff noise area of ​​the aircraft and / or the total landing noise area of ​​the aircraft.

[0223] This application allows for the accurate determination of the noise zone of a flight runway and the extent of airport noise, thereby assisting in the assessment of the environmental impact of airport noise and aiding in airport site selection.

[0224] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0225] Optionally, this application also provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the various processes of the above method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0226] This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described method embodiments and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0227] Figure 6 This is a block diagram illustrating an electronic device 800. For example, the electronic device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0228] Reference Figure 6 The electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0229] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0230] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on electronic device 800, contact data, phonebook data, messages, images, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a 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 storage, flash memory, magnetic disk, or optical disk.

[0231] Power supply component 806 provides power to various components of electronic device 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800.

[0232] Multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0233] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0234] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0235] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of electronic device 800, changes in position of electronic device 800 or a component of electronic device 800, the presence or absence of user contact with electronic device 800, orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0236] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, carrier networks (such as 2G, 3G, 4G, or 5G), or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast operation information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0237] In an exemplary embodiment, the electronic device 800 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 to perform the methods described above.

[0238] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of an electronic device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0239] Figure 7This is a block diagram of an electronic device 1900 shown in this application. For example, the electronic device 1900 can be provided as a server.

[0240] Reference Figure 7 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0241] Electronic device 1900 may also include a power supply component 1926 configured to perform power management of electronic device 1900, a wired or wireless network interface 1950 configured to connect electronic device 1900 to a network, and an input / output (I / O) interface 1958. Electronic device 1900 can operate on an operating system stored in memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0242] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0243] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0244] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0245] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0246] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0247] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0248] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0249] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0250] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0251] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for obtaining the noise region of an airstrip, characterized in that, The method includes: For scenarios where an aircraft takes off from a runway, the first takeoff noise region corresponding to the closest takeoff position of the aircraft is obtained, and the second takeoff noise region corresponding to the furthest takeoff position of the aircraft is obtained. The noise in the first takeoff noise region is greater than or equal to the preset maximum tolerance decibel, and the noise in the second takeoff noise region is greater than or equal to the preset maximum tolerance decibel. Based on the first takeoff noise region and the second takeoff noise region, a third takeoff noise region corresponding to the first intermediate position of the aircraft is obtained. The first intermediate position includes the position between the closest position to the ground and the furthest position from the ground. The noise in the third takeoff noise region is greater than or equal to the preset maximum tolerable decibel. The first takeoff noise region, the second takeoff noise region, and the third takeoff noise region are merged to obtain the total takeoff noise region of the aircraft. For the scenario of an aircraft landing on a runway, the first landing noise region corresponding to the nearest landing position of the aircraft is obtained, and the second landing noise region corresponding to the farthest landing position of the aircraft is obtained. The noise in the first landing noise region is greater than or equal to the preset maximum tolerance decibel, and the noise in the second landing noise region is greater than or equal to the preset maximum tolerance decibel. Based on the first landing noise region and the second landing noise region, a third landing noise region corresponding to the second intermediate position of the aircraft is obtained. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise region is greater than or equal to the preset maximum tolerable decibel. The first landing noise region, the second landing noise region, and the third landing noise region are merged to obtain the total landing noise region of the aircraft. The total noise area of ​​the runway is obtained based on the total noise area of ​​the aircraft during takeoff and / or the total noise area of ​​the aircraft during landing.

2. The method according to claim 1, characterized in that, The process of obtaining the total noise region of the runway based on the total takeoff noise region of the aircraft and / or the total landing noise region of the aircraft includes: The total noise area of ​​the aircraft takeoff is defined as the total noise area of ​​the runway. or, The total noise area of ​​the aircraft landing is defined as the total noise area of ​​the runway. or, The total noise region of the runway is obtained by merging the total noise region of the aircraft's takeoff and landing.

3. The method according to claim 1, characterized in that, The first takeoff noise region corresponding to the nearest takeoff position of the aircraft includes: Determine the takeoff altitude of the aircraft. If the aircraft's altitude during takeoff is less than or equal to its corresponding takeoff altitude, there will be noise on the ground generated by the aircraft that exceeds the preset maximum tolerable decibel level. The takeoff direction distance of the aircraft is determined based on the takeoff altitude of the aircraft. The takeoff direction distance of the aircraft is: the distance between the position of the aircraft on the ground when it starts to perform takeoff operations and the projected position of the aircraft on the ground when it reaches the takeoff altitude of the aircraft. Determine the vertical distance corresponding to the aircraft. During the takeoff operation of the aircraft, before it leaves the ground, within the vertical distance corresponding to the aircraft in the vertical direction, the noise generated by the aircraft is greater than or equal to the preset maximum tolerable decibel. The vertical direction is the horizontal direction, and the vertical direction is perpendicular to the takeoff direction. Based on the distance in the takeoff direction and the distance in the vertical direction corresponding to the aircraft, the first takeoff noise zone corresponding to the closest takeoff position of the aircraft is determined.

4. The method according to claim 3, characterized in that, Determining the takeoff altitude of the aircraft includes: Determine the model of the aircraft; Find the takeoff altitude that corresponds to the aircraft model and the preset maximum tolerable decibel level in the correspondence between the aircraft model, maximum tolerable decibel level, and takeoff altitude.

5. The method according to claim 3, characterized in that, The process of determining the takeoff direction distance of the aircraft based on its takeoff altitude includes: Determine the model of the aircraft; Find the takeoff direction distance corresponding to the aircraft model and takeoff altitude in the correspondence between the aircraft model, takeoff altitude and takeoff direction distance.

6. The method according to claim 3, characterized in that, Determining the vertical distance corresponding to the aircraft includes: Determine the model of the aircraft; Find the vertical distance corresponding to the aircraft model and the preset maximum tolerable decibel level in the correspondence between the aircraft model, maximum tolerable decibel level, and vertical distance.

7. The method according to claim 1, characterized in that, The step of obtaining the third takeoff noise region corresponding to the first intermediate position of the aircraft based on the first takeoff noise region and the second takeoff noise region includes: In the first takeoff noise zone, determine the first and second positions that are furthest from the runway; the first position is located on one side of the runway, and the second position is located on the other side of the runway. In the second takeoff noise zone, identify the third and fourth positions that are furthest from the runway; the third position is located on one side of the runway, and the fourth position is located on the other side of the runway. The area enclosed by the first, second, third, and fourth positions is defined as the third takeoff noise zone.

8. A device for acquiring the noise area of ​​an airstrip, characterized in that, The device includes: The first acquisition module is used to acquire, for the scenario of the aircraft taking off on the runway, the first takeoff noise area corresponding to the closest takeoff position of the aircraft and the second takeoff noise area corresponding to the furthest takeoff position of the aircraft. The noise in the first takeoff noise area is greater than or equal to the preset maximum tolerance decibel, and the noise in the second takeoff noise area is greater than or equal to the preset maximum tolerance decibel. The second acquisition module is used to acquire the third takeoff noise area corresponding to the first intermediate position of the aircraft based on the first takeoff noise area and the second takeoff noise area. The first intermediate position includes the position between the closest takeoff position and the furthest takeoff position. The noise in the third takeoff noise area is greater than or equal to the preset maximum tolerable decibel. The first fusion module is used to merge the first takeoff noise region, the second takeoff noise region and the third takeoff noise region to obtain the total takeoff noise region of the aircraft. The third acquisition module is used to acquire, for the scenario of the aircraft landing on the runway, the first landing noise area corresponding to the nearest landing position of the aircraft and the second landing noise area corresponding to the farthest landing position of the aircraft. The noise in the first landing noise area is greater than or equal to the preset maximum tolerable decibel, and the noise in the second landing noise area is greater than or equal to the preset maximum tolerable decibel. The fourth acquisition module is used to acquire the third landing noise area corresponding to the second intermediate position of the aircraft based on the first landing noise area and the second landing noise area. The second intermediate position includes the position between the nearest landing position and the farthest landing position. The noise in the third landing noise area is greater than or equal to the preset maximum tolerable decibel. The second fusion module is used to fuse the first landing noise region, the second landing noise region and the third landing noise region to obtain the total landing noise region of the aircraft. The fifth acquisition module is used to acquire the total noise area of ​​the runway based on the total noise area of ​​the aircraft's takeoff and / or the total noise area of ​​the aircraft's landing.

9. The apparatus according to claim 8, characterized in that, The fifth acquisition module includes: The first determining unit is used to determine the total noise area of ​​the aircraft takeoff as the total noise area of ​​the runway; or, The second determining unit is used to determine the total noise area of ​​the aircraft landing as the total noise area of ​​the runway. or, The fusion unit is used to merge the total noise region of the aircraft's takeoff and landing to obtain the total noise region of the runway.

10. The apparatus according to claim 8, characterized in that, The first acquisition module includes: The third determining unit is used to determine the takeoff altitude of the aircraft. In the case where the altitude of the aircraft during takeoff is less than or equal to the takeoff altitude of the aircraft, there is noise on the ground generated by the aircraft that is greater than the preset maximum tolerable decibel. The fourth determining unit is used to determine the takeoff direction distance of the aircraft based on the takeoff altitude of the aircraft. The takeoff direction distance of the aircraft is the distance between the position of the aircraft on the ground when it starts to perform takeoff operations and the projected position of the aircraft on the ground when it reaches the takeoff altitude of the aircraft. The fifth determining unit is used to determine the vertical distance corresponding to the aircraft. During the take-off operation of the aircraft before it leaves the ground, the noise generated by the aircraft is greater than or equal to the preset maximum tolerable decibel within the vertical distance corresponding to the aircraft in the vertical direction. The vertical direction is the horizontal direction, and the vertical direction is perpendicular to the take-off direction. The sixth determining unit is used to determine the first takeoff noise region corresponding to the nearest takeoff position of the aircraft based on the takeoff direction distance and the vertical direction distance corresponding to the aircraft.

11. The apparatus according to claim 10, characterized in that, The third determining unit includes: The first determining subunit is used to determine the model of the aircraft; The first search subunit is used to search for the takeoff altitude corresponding to the aircraft model and the preset maximum tolerable decibel level in the correspondence between the aircraft model, the maximum tolerable decibel level and the takeoff altitude.

12. The apparatus according to claim 10, characterized in that, The fourth determining unit includes: The second determining subunit is used to determine the model of the aircraft; The second search subunit is used to find the takeoff direction distance corresponding to the aircraft model and the takeoff altitude in the correspondence between the aircraft model, takeoff altitude and takeoff direction distance.

13. The apparatus according to claim 10, characterized in that, The fifth determining unit includes: The third determining subunit is used to determine the model of the aircraft; The third search subunit is used to find the vertical distance corresponding to the aircraft model and the preset maximum tolerance decibel in the correspondence between the aircraft model, the maximum tolerance decibel and the vertical distance.

14. The apparatus according to claim 8, characterized in that, The second acquisition module includes: The seventh determining unit is used to determine the first position and the second position that are farthest from the runway in the first takeoff noise area; the first position is located on one side of the runway and the second position is located on the other side of the runway. The eighth determining unit is used to determine the third and fourth positions, which are farthest from the runway, in the second takeoff noise area; the third position is located on one side of the runway, and the fourth position is located on the other side of the runway. The ninth determining unit is used to determine the area enclosed by the first position, the second position, the third position, and the fourth position as the third takeoff noise area.

15. An electronic device, characterized in that, include: A processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the method as described in any one of claims 1 to 7.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method as described in any one of claims 1 to 7.

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