Method and device for simulating vortex separation in parachute landing process

Abstract

The invention discloses a method for simulating vortex separation in a parachuting process. The method comprises the following steps: S1, acquiring multi-part air pressure values of a dummy model in a parachuting simulation process in real time; s2, judging whether the dummy enters a vortex region or not according to the collected air pressure value and a preset vortex judgment rule; s3, all directions of airflow in the vortex area are set; s4, judging the direction of the airflow received by the dummy model; s5, controlling the dummy model to reach a preset posture; s6, repeating the steps S4 to S5 until the dummy is judged to be separated from the vortex region; according to the invention, the dummy model is arranged in a real eddy current environment, so that the dynamic characteristics in the parachuting process can be simulated more accurately, the stress condition and posture change of a parachuting person in the eddy current can be reflected more truly, and powerful support is provided for the research of separation from the eddy current in the parachuting process.

Description

Technical Field

[0001] The invention relates to the technical field of parachuting simulation devices, and in particular to a method and device for simulating eddy current separation during parachuting. Background Art

[0002] In skydiving, the safety of the parachute process is of vital importance. However, due to the complexity and unpredictability of the airflow environment, skydivers may encounter vortex areas during the parachute process. The vortex may cause the skydiver to stay in the air for a longer time, increasing the time he is affected by the synthetic wind in the air, thereby destroying the originally planned landing trajectory, and may even drift out of the landing field, causing a complex terrain landing and affecting landing safety. The instability and rotation of the vortex can easily cause the parachute to sway and bump, which may cause the skydiver to feel dizzy and vomit, or even cause operational errors, endangering the safety of the parachute.

[0003] Therefore, how to effectively simulate the vortex environment during parachuting and study the posture adjustment strategy of parachutists in the vortex has become an important issue to improve the safety and comfort of the parachuting process.

[0004] The formation of vortices is mainly due to the irregular movement of airflow when it encounters obstacles or changes its speed or direction dramatically during air flow. During skydiving, the skydiver and his parachute can become such obstacles. In addition, factors such as ground wind speed, terrain changes (such as hillsides and valleys), and wake generated by aircraft takeoff or landing may also cause vortices. Vortices are unstable and rotating, and their airflow direction and speed change unpredictably. The pressure in the vortex area is usually low, and the airflow speed direction is opposite to the incoming flow speed direction or forms a complex rotating flow.

[0005] Traditionally, the simulation of skydiving mainly relies on methods such as wind tunnel experiments and numerical simulation. However, these methods often fail to accurately reproduce the vortex environment during real skydiving, and are costly and complex to operate. In addition, when simulating the impact of vortices on skydivers, existing simulation devices usually lack air pressure monitoring and posture adjustment mechanisms for specific parts of the skydiver, and are unable to accurately reflect the impact of vortices on the skydiver's posture and the corresponding adjustment strategies. Summary of the invention

[0006] The purpose of the present invention is to address the problems existing in the prior art and to provide a method and device for simulating vortex separation during parachuting. By placing a dummy model in a real vortex environment, the dynamic characteristics of the parachuting process can be more accurately simulated, and the force conditions and posture changes of the skydiver in the vortex can be more realistically reflected, providing strong support for the research on vortex separation during parachuting.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A method for simulating eddy current separation during parachute landing, comprising:

[0009] S1. Real-time collection of air pressure values ​​of multiple parts of the dummy model during simulated skydiving;

[0010] S2, judging whether the dummy enters the eddy current area according to the collected air pressure value and the predetermined eddy current judgment rule;

[0011] S3, using the dummy model as a reference body, setting the directions of the airflow in the vortex area;

[0012] S4. If the dummy model enters the vortex area, the direction of the airflow to the dummy model is determined according to the collected air pressure value and the predetermined airflow determination rule;

[0013] S5. According to the change of the airflow direction received by the dummy model, the motors of each joint of the dummy model are adjusted in real time to control the dummy model to reach a preset posture;

[0014] S6. Repeat steps S4 to S5 until it is determined that the dummy is out of the eddy current area.

[0015] In step S1, real-time collection of air pressure values ​​of multiple parts of the dummy model during the simulated parachuting process includes:

[0016] Air pressure sensors are installed on the left arm, right arm, chest, back, head and upper and lower parts of the reserve parachute of the dummy model;

[0017] The air pressure data of each part is collected in real time, and pre-processed by filtering and denoising.

[0018] In step S2, judging whether the dummy enters the eddy current area according to the collected air pressure value and the predetermined eddy current judgment rule includes:

[0019] Set the threshold range of the upper and lower pressure difference of the chest reserve parachute. When the actual pressure difference exceeds this range, it is determined that the dummy model has entered the vortex area.

[0020] In addition, a threshold range of the pressure difference between the head and the chest or between the head and the back is set, and when the actual pressure difference exceeds this range, it is also determined that the dummy model enters the vortex area.

[0021] In step S3, the dummy model is used as a reference body, and the airflow directions in the eddy zone are set to include:

[0022] When the airflow blows from the front to the back of the dummy model, it is defined as backward airflow;

[0023] When the airflow blows from the back to the front of the dummy model, it is defined as forward airflow;

[0024] When the airflow blows from the feet of the manikin toward the head, it is defined as upward airflow:

[0025] When the airflow blows from the head of the mannequin toward the feet, it is defined as downward airflow:

[0026] When the airflow blows from the left arm to the right arm of the dummy model, it is defined as the airflow flowing to the right:

[0027] When the airflow blows from the right arm to the left arm of the dummy model, it is defined as the airflow flowing to the left.

[0028] In step S4, judging the direction of the airflow to the dummy according to the collected air pressure value and the predetermined airflow judgment rule includes:

[0029] Calculate the difference between the head air pressure and the average of the chest and back air pressures. If the difference is positive and exceeds a preset threshold, the airflow is judged to be from top to bottom. If the difference is negative and the absolute value exceeds a preset threshold, the airflow is judged to be from bottom to top.

[0030] Calculate the difference between the back pressure value and the average value of the head and chest pressure. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is from back to front. If the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is from front to back.

[0031] The air pressure difference between the left arm and the right arm is calculated. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is blowing from left to right. If the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is blowing from right to left.

[0032] In step S5, adjusting the posture of the dummy by adjusting the motors of each joint of the dummy model according to the airflow direction of the dummy includes:

[0033] When the airflow is judged to be backward, the head of the dummy model is controlled to tilt backward, the left and right upper arms are opened and swung backward, the left and right forearms are stretched straight, the left and right thighs are opened, and the left and right calves are bent backward;

[0034] When it is determined that the airflow is forward, the head of the dummy model is controlled to bend forward, the left and right upper arms are opened and swung forward, the left and right forearms are stretched straight, the left and right thighs are lifted forward, and the left and right calves are stretched straight;

[0035] When it is determined that the airflow is to the right, control the right upper arm to open to the right, the right forearm to straighten, the right thigh to open to the right, the calf to straighten, and the head to tilt to the right;

[0036] When it is determined that the airflow is to the left, control the left upper arm to open to the left, straighten the left forearm, open the left thigh to the left, straighten the left calf, and tilt the head to the left.

[0037] In step S5, according to the change of the airflow direction received by the dummy model, the motors of the joints of the dummy model are adjusted in real time to control the dummy model to reach a preset posture, including:

[0038] When it is determined that the airflow is to the left rear or right front, the left arm and left leg are controlled to swing forward, and the right arm and right leg are controlled to swing backward, so that the body is adjusted to face the wind from the front or back, and then the posture adjustment strategy is executed when the airflow is forward or backward;

[0039] When it is determined that the airflow is heading to the left front or right back, control the left arm and left leg to swing back, and the right arm and right leg to swing forward, adjust the body to face the wind in front or back, and then execute the posture adjustment strategy when the airflow is heading forward or backward.

[0040] A parachute landing process eddy current separation simulation device, comprising:

[0041] The dummy model has parts simulating human body structure, including body, left arm, right arm, left leg, right leg and head, and each part is connected by a joint motor; wherein the left arm and the right arm both include an upper arm and a lower arm, and the upper arm and the lower arm are also connected by a joint motor, and the left leg and the right leg both include a thigh and a calf, and the thigh and the calf are also connected by a joint motor;

[0042] The air pressure sensor group is distributed on the left arm, right arm, chest, back and head of the dummy model to collect the air pressure values ​​of various parts in real time;

[0043] A data processing unit, connected to the air pressure sensor group, is used to receive and pre-process the collected air pressure data, and determine whether the dummy enters the vortex area and the direction of the airflow according to a predetermined rule;

[0044] The motor control system is connected to the data processing unit and the motors of each joint of the dummy model, and adjusts the motors according to the judgment result of the data processing unit to adjust the posture of the dummy model.

[0045] A computer-readable storage medium stores a computer program, wherein the computer program implements the above method steps when executed by a processor.

[0046] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method steps when executing the computer program.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] 1. Providing a highly simulated dummy model and air pressure sensor system, placing the dummy model in a real vortex environment, can more accurately simulate the dynamic characteristics of the parachute drop process, more realistically reflect the force and posture changes of the skydiver in the vortex, and provide strong support for the study of escaping the vortex during parachuting;

[0049] 2. By collecting the air pressure values ​​of multiple parts of the dummy model in real time during the simulated parachuting process, it is possible to accurately determine whether the dummy has entered the vortex area and the direction of the airflow it is subjected to, so as to take timely countermeasures to reduce the potential threat of the vortex to the parachutist and improve the safety of the parachuting process;

[0050] 3. According to the changes in the direction of the airflow, the motors of the joints of the dummy model are adjusted in real time to make the dummy model reach the preset posture to maintain body balance. This simulates and verifies the use of posture adjustment strategies to reduce the impact of airflow on the skydiver, reduce the impact of vortices on the skydiving process, and provide support for the skydiver to safely leave the vortex area. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 This is a flow chart of a method for simulating eddy current separation during a parachute landing process according to an embodiment of the present application;

[0053] Figure 2 This is a structural diagram of a dummy model according to an embodiment of the present application;

[0054] Figure 3 A schematic diagram of the airflow direction of the dummy model in the vortex according to the embodiment of the present application;

[0055] In the picture: 1. Left arm; 2. Right arm; 3. Back; 4. Head; 5. Chest reserve parachute. DETAILED DESCRIPTION

[0056] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] like Figure 1 As shown, in a first aspect of the present application, a method for simulating vortex separation during parachute landing is provided, comprising:

[0058] S1. Real-time collection of air pressure values ​​at multiple locations of the dummy model during simulated skydiving.

[0059] S2. Determine whether the dummy enters the eddy current area according to the collected air pressure value and the predetermined eddy current determination rule.

[0060] S3. Using the dummy model as a reference body, set the directions of the airflow in the vortex area.

[0061] S4. If the dummy model enters the vortex area, the direction of the airflow to the dummy model is determined according to the collected air pressure value and the predetermined airflow determination rule.

[0062] S5. According to the change of the airflow direction received by the dummy model, the motors of the joints of the dummy model are adjusted in real time to control the dummy model to reach a preset posture.

[0063] S6. Repeat steps S4 to S5 until it is determined that the dummy is out of the eddy current area.

[0064] The method of this embodiment uses a highly simulated dummy model and an air pressure sensor system, and places the dummy model in a real vortex environment. This can more accurately simulate the dynamic characteristics of the parachuting process, and more realistically reflect the force conditions and posture changes of the skydiver in the vortex, providing strong support for the research on escaping the vortex during parachuting.

[0065] The method of this embodiment is described in detail below.

[0066] In this embodiment, the method for simulating the vortex escape during parachuting mainly relies on a highly simulated dummy model and a set of air pressure sensor systems. The design of the dummy model should be as close as possible to the structure and weight distribution of a real human body in order to more accurately simulate the dynamic characteristics during parachuting.

[0067] like Figure 2 As shown, an air pressure sensor is installed on the left arm 1, right arm 2, back, head 3 and above and below the chest reserve parachute 4 of the dummy model. These parts are the areas that are most directly in contact with the airflow during skydiving and are greatly affected by the air pressure. Therefore, monitoring at these locations can more accurately reflect the air pressure changes of the dummy model during skydiving.

[0068] A pressure sensor is also installed on each. The reserve parachute plays a role in safety during parachuting, and the pressure changes above and below it are important for determining whether it is affected by vortexes.

[0069] The data acquisition system collects the air pressure data output by each air pressure sensor in real time. It should ensure that the data acquisition frequency is high enough to capture the continuous changes in air pressure, thereby providing a data basis for subsequent analysis and processing.

[0070] The sensor collects air pressure data from various parts in real time and performs pre-processing operations such as filtering and denoising to ensure the accuracy and reliability of the data. The pre-processing operation includes digital filtering and data smoothing steps to eliminate noise interference and improve the credibility of the data.

[0071] During the simulated skydiving process, the real-time collected air pressure value will be used to determine whether the dummy model enters the vortex area. The vortex determination rule is mainly based on the threshold setting of the air pressure difference.

[0072] Specifically, a threshold range of the pressure difference between the upper and lower parts of the chest reserve parachute is set. When the actual pressure difference exceeds this range, it is determined that the dummy model has entered the vortex area. This is because the turbulent airflow in the vortex area will cause a significant difference in air pressure above and below the reserve parachute.

[0073] At the same time, a threshold range of the pressure difference between the head and chest or between the head and back is set. When the actual pressure difference exceeds this range, the dummy model is also judged to have entered the vortex area. This is because the airflow direction in the vortex is changeable, which may cause a large difference in air pressure in different parts of the dummy model.

[0074] After determining that the dummy model has entered the eddy zone, it is necessary to further determine the direction of the airflow. Using the dummy model as a reference body, the directions of the airflow in the eddy zone are set as follows:

[0075] When the airflow blows from the front to the back of the dummy model, it is defined as backward airflow;

[0076] When the airflow blows from the back to the front of the dummy model, it is defined as forward airflow;

[0077] When the airflow blows from the feet of the dummy model toward the head, it is defined as upward airflow;

[0078] When the airflow blows from the head of the dummy model toward the feet, it is defined as downward airflow;

[0079] When the airflow blows from the left arm to the right arm of the dummy model, it is defined as the airflow flowing to the right;

[0080] When the airflow blows from the right arm to the left arm of the dummy model, it is defined as the airflow flowing to the left.

[0081] Through the above settings, the possible airflow directions in the eddy zone can be fully covered, the impact of the airflow in the eddy zone on the dummy model can be accurately described, and a basis can be provided for subsequent posture adjustment strategies.

[0082] like Figure 3 As shown in the figure, after determining that the dummy model has entered the vortex area, it is necessary to determine the direction of the airflow to the dummy based on the collected air pressure value and the predetermined rules. The specific judgment rules are as follows:

[0083] Calculate the difference between the head pressure and the average of the chest and back pressures. If the difference is positive and exceeds the preset threshold, the airflow is judged to be from top to bottom; if the difference is negative and the absolute value exceeds the preset threshold, the airflow is judged to be from bottom to top. This is because the head is usually located at the top of the dummy model. When the airflow blows from top to bottom, the head pressure will be relatively high; conversely, when the airflow blows from bottom to top, the head pressure will be relatively low.

[0084] Calculate the difference between the back pressure and the average of the head and chest pressure. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is from back to front; if the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is from front to back. This is because the back is usually located at the back of the dummy model. When the airflow blows from back to front, the back pressure will be relatively high; conversely, when the airflow blows from front to back, the back pressure will be relatively low.

[0085] Calculate the air pressure difference between the left arm and the right arm. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is blowing from left to right; if the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is blowing from right to left. This is because the left arm and the right arm are located on both sides of the dummy model. When the airflow blows from left to right, the air pressure in the left arm will be relatively high; conversely, when the airflow blows from right to left, the air pressure in the right arm will be relatively high.

[0086] After determining the airflow direction, it is necessary to adjust the motors of each joint of the dummy model in real time according to the airflow direction to control the dummy model to reach the preset posture and maintain body balance. The specific posture adjustment strategy is as follows:

[0087] When it is determined that the airflow is backward, the head of the dummy model is controlled to tilt backward; the left and right upper arms are opened and swung backward, the left and right lower arms are straightened; the left and right thighs are opened, and the left and right calves are bent backward. The above posture adjustment can reduce the frontal impact of the airflow on the dummy model and reduce the impact of the vortex on the dummy model.

[0088] When the airflow is judged to be forward, the head of the dummy model is controlled to bend forward; the left and right upper arms are opened and swung forward, the left and right lower arms are straightened; the left and right thighs are raised forward, and the left and right calves are straightened. The above posture adjustment can reduce the impact of the airflow on the back of the dummy model while maintaining the stability of the body.

[0089] When the airflow is determined to be to the right, control the right upper arm to open to the right and the right forearm to straighten to increase the force area on the right side of the body; open the right thigh to the right and straighten the calf to maintain the balance and stability of the body; tilt the head to the right. This posture adjustment can maintain the balance of the body and avoid rolling to the right.

[0090] When the airflow is determined to be to the left, control the left upper arm to open to the left, the left forearm to straighten; the left thigh to open to the left, the left calf to straighten; the head to the left. This posture adjustment can maintain the balance of the body and avoid rolling to the left.

[0091] In addition, for more complex airflow directions, such as airflow to the left rear or right front, airflow to the left front or right rear, etc., a combined attitude adjustment strategy is required. For example:

[0092] When it is determined that the airflow is to the left rear or right front, first control the left arm and left leg to swing forward, and the right arm and right leg to swing backward, and adjust the body to face the wind from the front or back to reduce the side force and reduce the impact of the vortex on the dummy model; then, according to whether the airflow is to the left rear or right front, execute the corresponding posture adjustment strategy when the airflow is forward or backward. If it is to the left rear, adjust according to the strategy of airflow backward; if it is to the right front, since it has been adjusted to face the wind from the back, it is actually equivalent to airflow backward, and it is also adjusted according to the strategy of airflow backward.

[0093] When it is determined that the airflow is to the left front or right back, first control the left arm and left leg to swing back, and the right arm and right leg to swing forward, and adjust the body to face the wind from the front or back to reduce the side force; then, according to whether the airflow is to the left front or right back, execute the corresponding posture adjustment strategy when the airflow is forward or backward. If it is to the left front, adjust according to the strategy of airflow forward; if it is to the right back, since it has been adjusted to face the wind from the front, it is actually equivalent to airflow forward, and the same adjustment is made according to the strategy of airflow forward.

[0094] During the simulated parachuting process, the airflow direction in the vortex area will change continuously. Therefore, it is necessary to repeat the airflow direction determination and attitude adjustment steps. When the airflow condition no longer meets the set rules in step S2, it is determined that the dummy model has left the vortex area.

[0095] In summary, this embodiment provides a method for vortex separation in a simulated parachuting process, which collects air pressure values ​​of multiple parts of a dummy model in real time during the simulated parachuting process, determines whether the dummy has entered the vortex area, and adjusts the posture of the dummy model in real time according to the airflow direction to maintain body balance; this method can effectively improve the safety and comfort of the parachuting process, and provides strong support for the research and optimization of parachuting.

[0096] In a second aspect of the present application, there is provided a device for escaping a vortex during a simulated parachute landing, comprising:

[0097] The dummy model has parts simulating human body structure, including body, left arm, right arm, left leg, right leg and head, and each part is connected by a joint motor; wherein the left arm and the right arm both include an upper arm and a lower arm, and the upper arm and the lower arm are also connected by a joint motor, and the left leg and the right leg both include a thigh and a calf, and the thigh and the calf are also connected by a joint motor;

[0098] The air pressure sensor group is distributed on the left arm, right arm, chest, back and head of the dummy model to collect the air pressure values ​​of various parts in real time;

[0099] A data processing unit, connected to the air pressure sensor group, is used to receive and pre-process the collected air pressure data, and determine whether the dummy enters the vortex area and the direction of the airflow according to a predetermined rule;

[0100] The motor control system is connected to the data processing unit and the motors of each joint of the dummy model, and adjusts the motors according to the judgment result of the data processing unit to adjust the posture of the dummy model.

[0101] According to a third aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program implements the above-mentioned method steps when executed by a processor.

[0102] According to a fourth aspect of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method steps when executing the computer program.

[0103] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0104] In the description of the present specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish descriptions and cannot be understood as indicating or suggesting relative importance. It should also be understood that although the terms "first", "second", etc. are used to describe various elements in some embodiments of the present application in the text, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first table can be named as the second table, and similarly, the second table can be named as the first table without departing from the scope of the various described embodiments. The first table and the second table are both tables, but they are not the same table.

[0105] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0106] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for eddy current separation during simulated parachute landing, characterized in that: include: S1. Real-time collection of air pressure values ​​of multiple parts of the dummy model during simulated skydiving; S2, judging whether the dummy enters the eddy current area according to the collected air pressure value and the predetermined eddy current judgment rule; S3, using the dummy model as a reference body, setting the directions of the airflow in the vortex area; S4. If the dummy model enters the vortex area, the direction of the airflow to the dummy model is determined according to the collected air pressure value and the predetermined airflow determination rule; S5. According to the change of the airflow direction received by the dummy model, the motors of each joint of the dummy model are adjusted in real time to control the dummy model to reach a preset posture; S6. Repeat steps S4 to S5 until it is determined that the dummy is out of the eddy current area.

2. The method for eddy current separation during simulated parachute landing according to claim 1, characterized in that: In step S1, real-time collection of air pressure values ​​of multiple parts of the dummy model during the simulated parachuting process includes: Air pressure sensors are installed on the left arm, right arm, chest, back, head and upper and lower parts of the reserve parachute of the dummy model; The air pressure data of each part is collected in real time, and pre-processed by filtering and denoising.

3. The method for eddy current separation during simulated parachute landing according to claim 1, characterized in that: In step S2, judging whether the dummy enters the eddy current area according to the collected air pressure value and the predetermined eddy current judgment rule includes: Set the threshold range of the upper and lower pressure difference of the chest reserve parachute. When the actual pressure difference exceeds this range, it is determined that the dummy model has entered the vortex area. In addition, a threshold range of the pressure difference between the head and the chest or between the head and the back is set, and when the actual pressure difference exceeds this range, it is also determined that the dummy model enters the vortex area.

4. The method for eddy current separation during simulated parachute landing according to claim 1, characterized in that: In step S3, the dummy model is used as a reference body, and the airflow directions in the eddy zone are set to include: When the airflow blows from the front to the back of the dummy model, it is defined as backward airflow; When the airflow blows from the back to the front of the dummy model, it is defined as forward airflow; When the airflow blows from the feet of the manikin toward the head, it is defined as upward airflow: When the airflow blows from the head of the mannequin toward the feet, it is defined as downward airflow: When the airflow blows from the left arm to the right arm of the dummy model, it is defined as the airflow flowing to the right: When the airflow blows from the right arm to the left arm of the dummy model, it is defined as the airflow flowing to the left.

5. The method for eddy current separation during simulated parachute landing according to claim 1, characterized in that: In step S4, judging the direction of the airflow to the dummy according to the collected air pressure value and the predetermined airflow judgment rule includes: Calculate the difference between the head air pressure and the average of the chest and back air pressures. If the difference is positive and exceeds a preset threshold, the airflow is judged to be from top to bottom. If the difference is negative and the absolute value exceeds a preset threshold, the airflow is judged to be from bottom to top. Calculate the difference between the back pressure value and the average value of the head and chest pressure. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is from back to front. If the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is from front to back. The air pressure difference between the left arm and the right arm is calculated. If the difference is positive and exceeds the preset threshold, it is judged that the airflow is blowing from left to right. If the difference is negative and the absolute value exceeds the preset threshold, it is judged that the airflow is blowing from right to left.

6. The method for eddy current separation during simulated parachute landing according to claim 1, characterized in that: In step S5, adjusting the posture of the dummy by adjusting the motors of each joint of the dummy model according to the airflow direction of the dummy includes: When the airflow is judged to be backward, the head of the dummy model is controlled to tilt backward, the left and right upper arms are opened and swung backward, the left and right forearms are stretched straight, the left and right thighs are opened, and the left and right calves are bent backward; When it is determined that the airflow is forward, the head of the dummy model is controlled to bend forward, the left and right upper arms are opened and swung forward, the left and right forearms are stretched straight, the left and right thighs are lifted forward, and the left and right calves are stretched straight; When it is determined that the airflow is to the right, control the right upper arm to open to the right, the right forearm to straighten, the right thigh to open to the right, the calf to straighten, and the head to tilt to the right; When it is determined that the airflow is to the left, control the left upper arm to open to the left, straighten the left forearm, open the left thigh to the left, straighten the left calf, and tilt the head to the left.

7. The method for eddy current separation during simulated parachute landing according to claim 6, characterized in that: In step S5, according to the change of the airflow direction received by the dummy model, the motors of the joints of the dummy model are adjusted in real time to control the dummy model to reach a preset posture, including: When it is determined that the airflow is to the left rear or right front, the left arm and left leg are controlled to swing forward, and the right arm and right leg are controlled to swing backward, so that the body is adjusted to face the wind from the front or back, and then the posture adjustment strategy is executed when the airflow is forward or backward; When it is determined that the airflow is heading to the left front or right back, control the left arm and left leg to swing back, and the right arm and right leg to swing forward, adjust the body to face the wind in front or back, and then execute the posture adjustment strategy when the airflow is heading forward or backward.

8. A device for applying the method for simulating eddy current separation during parachuting according to any one of claims 1 to 7, characterized in that: include: The dummy model has parts simulating human body structure, including body, left arm, right arm, left leg, right leg and head, and each part is connected by a joint motor; wherein the left arm and the right arm both include an upper arm and a lower arm, and the upper arm and the lower arm are also connected by a joint motor, and the left leg and the right leg both include a thigh and a calf, and the thigh and the calf are also connected by a joint motor; The air pressure sensor group is distributed on the left arm, right arm, chest, back and head of the dummy model to collect the air pressure values ​​of various parts in real time; A data processing unit, connected to the air pressure sensor group, is used to receive and pre-process the collected air pressure data, and determine whether the dummy enters the vortex area and the direction of the airflow according to a predetermined rule; The motor control system is connected to the data processing unit and the motors of each joint of the dummy model, and adjusts the motors according to the judgment result of the data processing unit to adjust the posture of the dummy model.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program implements the method steps of any one of claims 1 to 4 when executed by a processor.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method steps of any one of claims 1 to 4 are implemented.

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