A method and device for simulating eddy current separation during parachute landing

Abstract

The present invention discloses a method for escaping from an eddy current during a simulated parachute jump, comprising the following steps: S1, collecting air pressure values ​​of multiple positions of a dummy model during the simulated parachute jump in real time; S2, judging whether the dummy has entered an eddy current zone based on the collected air pressure values ​​and a predetermined eddy current judgment rule; S3, setting the directions of airflows in the eddy current zone; S4, judging the direction of the airflow received by the dummy model; S5, controlling the dummy model to reach a preset posture; and S6, repeating steps S4 to S5 until it is judged that the dummy has escaped from the eddy current zone. By placing the dummy model in a real eddy current environment, the present invention can more accurately simulate the dynamic characteristics of the parachute jump process, more realistically reflect the force conditions and posture changes of the parachutist in the eddy current, and provide strong support for research on escaping from the eddy current during the parachute jump.

Description

Technical Field

[0001] The present 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, parachuting safety is paramount. However, due to the complexity and unpredictability of airflow, skydivers may encounter vortexes during their descent. These vortices can prolong a skydiver's time in the air, increasing their exposure to the combined winds. This can disrupt the planned landing trajectory and even cause the skydiver to drift beyond the landing area, resulting in a landing on complex terrain and compromising landing safety. The unstable and rotating nature of vortices can easily cause the parachute to sway and jolt. In severe cases, these vortices can cause dizziness, vomiting, or even lead to operational errors, compromising the safety of the jump.

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

[0004] Vortices are primarily formed when air encounters an obstacle or experiences a sudden change in speed or direction, causing the airflow to move erratically. During a skydive, the skydiver and their parachute can become such obstacles. Additionally, factors such as ground wind speed, terrain changes (such as hillsides and valleys), and the wake generated by aircraft takeoff or landing can also trigger vortices. Vortices are unstable and rotational, with their airflow direction and speed fluctuating erratically. The pressure within the vortex region is typically low, and the airflow velocity is opposite to the incoming flow, or a complex rotational flow is formed.

[0005] Traditionally, simulations of skydiving rely primarily on methods such as wind tunnel experiments and numerical simulations. However, these methods often struggle to accurately replicate the vortex environment experienced during a real-world skydiving experience, are costly, and complex to operate. Furthermore, existing simulations often lack specific air pressure monitoring and posture adjustment mechanisms for simulating the effects of vortexes on a skydiver, making them unable to accurately reflect the impact of vortexes 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 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 simulated more accurately, and the force conditions and posture changes of the parachutist in the vortex can be more realistically reflected, providing strong support for the research on escaping from the vortex during parachuting.

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

[0008] A method for simulating eddy current shedding during a parachute landing process, comprising:

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

[0010] S2. judging whether the dummy has entered the eddy current zone based on the collected air pressure value and a predetermined eddy current judgment rule;

[0011] S3. Using the dummy model as a reference body, set the airflow directions 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 based on the collected air pressure value and the predetermined airflow determination rule;

[0013] S5. According to the change in the direction of the airflow 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 has left the vortex area.

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

[0016] Install air pressure sensors 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-processing operations such as filtering and denoising are performed.

[0018] In step S2, judging whether the dummy has entered the eddy current zone 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 chest or between the head and back is set. When the actual pressure difference exceeds this range, it is also determined that the dummy model has entered the vortex area.

[0021] In step S3, the dummy model is used as a reference body, and the airflow directions in the vortex area are set as follows:

[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 to the feet of the dummy model, 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, the direction of the airflow on the dummy is determined based on the collected air pressure value and the predetermined airflow determination rule, including:

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

[0031] Calculate the air pressure difference between the left and right arms. 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 dummy's posture 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 dummy model's head is controlled to tilt back, the left and right upper arms are opened and swung backward, the left and right forearms are straightened, the left and right thighs are opened, and the left and right calves are bent backward;

[0034] When the airflow is determined to be forward, the dummy model's head is controlled to bend forward, the left and right upper arms are opened and swung forward, the left and right forearms are straightened, the left and right thighs are raised forward, and the left and right calves are straightened;

[0035] When the airflow is judged to be to the right, control the right upper arm to open to the right, right forearm to straighten, right thigh to open to the right, calf to straighten, and 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 in the direction of the airflow 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, adjusting the body to face the wind from the front or back, and then executing the posture adjustment strategy 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 device for simulating eddy current separation during parachute landing, comprising:

[0041] The manikin has parts that simulate the human body structure, including a body, a left arm, a right arm, a left leg, a right leg, and a head, and each part is connected by a joint motor. The left and right arms each include an upper arm and a lower arm, and the upper and lower arms are also connected by a joint motor. The left and right legs each include a thigh and a calf, and the thigh and calf are also connected by a joint motor.

[0042] Air pressure sensor groups are distributed on the left arm, right arm, chest, back, and head of the dummy model to collect real-time air pressure values ​​at various locations.

[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 has entered the vortex area and the direction of the airflow according to predetermined rules;

[0044] The motor control system is connected to the data processing unit and the joint motors of the dummy model, and adjusts the motors according to the judgment results 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-mentioned 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 realistic vortex environment, can more accurately simulate the dynamic characteristics of the parachute drop process, more realistically reflect the force conditions and posture changes of the skydiver in the vortex, and provide strong support for the research on escaping the vortex during parachuting;

[0049] 2. By collecting real-time air pressure values ​​at multiple locations on the dummy during a simulated parachute jump, it is possible to accurately determine whether the dummy has entered a vortex zone and the direction of the airflow it is experiencing. This allows for timely response measures to reduce the potential threat of vortexes to the parachutist and improve the safety of the parachute jump.

[0050] 3. Based on the changes in airflow direction, the motors of each joint of the dummy model are adjusted in real time to make the dummy model reach a preset posture to maintain body balance. This simulates and verifies that the posture adjustment strategy can reduce the impact of airflow on the skydiver, reduce the impact of vortex on the skydiving process, and provide support for the skydiver to safely escape 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any 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 the dummy model according to an embodiment of the present application;

[0054] Figure 3 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 following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 shedding during a parachute landing process is provided, comprising:

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

[0059] S2. Determine whether the dummy has entered the eddy current area based on the collected air pressure value and a 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 in the direction of the airflow 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 has left the vortex area.

[0064] The method of this embodiment uses a highly simulated dummy model and an air pressure sensor system, placing the dummy model in a real vortex environment. This can more accurately simulate the dynamic characteristics of the parachute drop process, more realistically reflect the force conditions and posture changes of the skydiver in the vortex, and provide 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 vortex escape during a parachute landing relies primarily on a highly realistic dummy model and a system of air pressure sensors. The dummy model should be designed to closely resemble the structure and weight distribution of a real human body to more accurately simulate the dynamic characteristics of a parachute landing.

[0067] like Figure 2 As shown, a pressure sensor is installed on the dummy's left arm 1, right arm 2, back, head 3, and above and below the chest reserve parachute 4. These areas are most directly exposed to airflow during skydiving and are significantly affected by air pressure. Therefore, monitoring these locations can more accurately reflect the dummy's air pressure changes during the skydiving process.

[0068] A pressure sensor is also installed on each. The reserve parachute plays a role in safety during the parachute jump, 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 locations in real time and performs preprocessing operations such as filtering and denoising to ensure data accuracy and reliability. Preprocessing operations include digital filtering and data smoothing to eliminate noise interference and improve data credibility.

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

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

[0073] A threshold range for the pressure difference between the head and chest, or between the head and back, is also set. If the actual pressure difference exceeds this range, the dummy model is considered to have entered the vortex zone. This is because the airflow direction in the vortex varies, which can cause significant differences in air pressure in different parts of the dummy model.

[0074] After determining that the dummy model has entered the vortex zone, it is necessary to further determine the direction of the airflow. Using the dummy model as a reference body, the airflow directions in the vortex 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 flow;

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

[0078] When the airflow blows from the head to the feet of the dummy model, 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 vortex area can be fully covered, the impact of the airflow in the vortex area on the dummy model can be accurately described, and a basis for subsequent posture adjustment strategies can be provided.

[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 on the dummy based on the collected air pressure value and 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 a preset threshold, the airflow is considered to be from top to bottom. If the difference is negative and its absolute value exceeds a preset threshold, the airflow is considered to be from bottom to top. This is because the head is typically located at the top of the manikin. When airflow is from top to bottom, the head pressure is relatively high; conversely, when airflow is from bottom to top, the head pressure is relatively low.

[0084] Calculate the difference between the back pressure and the average head and chest pressure. If the difference is positive and exceeds a preset threshold, the airflow is determined to be from back to front. If the difference is negative and its absolute value exceeds a preset threshold, the airflow is determined to be from front to back. This is because the back is typically located at the rear of the dummy. When airflow is from back to front, the back pressure is relatively high; conversely, when airflow is from front to back, the back pressure is relatively low.

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

[0086] After determining the airflow direction, the motors of each joint of the dummy model need to be adjusted 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 the airflow is determined to be backward, the dummy's head is tilted back; both upper arms are extended and swung backward, with both forearms straightened; both thighs are extended, and both calves are bent backward. These posture adjustments can reduce the frontal impact of the airflow on the dummy and mitigate the impact of vortexes on the dummy.

[0088] When the airflow is determined to be forward, the dummy's head is tilted forward; both upper arms are extended and swung forward, with both forearms straightened; both thighs are raised forward, with both calves straightened. These posture adjustments reduce the impact of the airflow on the dummy's back while maintaining body stability.

[0089] When the airflow is determined to be to the right, control the right upper arm to open to the right and straighten the right forearm 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 balance and stability. Tilt the head to the right. This posture adjustment can maintain balance and prevent rolling to the right.

[0090] When the airflow is to the left, control the left upper arm to the left and the left forearm to be straight; the left thigh to the left and the left calf to be straight; and tilt the head to the left. This posture adjustment can maintain the body's balance 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, a combined attitude adjustment strategy is required. For example:

[0092] When the airflow is determined to be to the left rear or right front, the system first controls the left arm and left leg to swing forward, and the right arm and right leg to swing backward, adjusting the body to face the wind from the front or back. This reduces lateral forces and minimizes the impact of vortices on the dummy model. Next, the system implements the corresponding forward or backward posture adjustment strategy, depending on whether the airflow is to the left rear or right front. If the airflow is to the left rear, the system adjusts according to the backward posture strategy. If the airflow is to the right front, the system adjusts according to the backward posture strategy, as the back is already facing the wind, effectively acting as if the airflow is to the rear.

[0093] When the airflow is determined to be to the left front or right rear, the body is first controlled to swing the left arm and left leg backward and the right arm and right leg forward, adjusting the body to face the wind from the front or back to reduce lateral forces. Next, depending on whether the airflow is to the left front or right rear, the body is adjusted accordingly for forward or backward airflow. If the airflow is to the left front, the body is adjusted according to the forward airflow strategy. If the airflow is to the right rear, the body is already facing the wind from the front, effectively acting as if the airflow is forward, and the forward airflow strategy is also used.

[0094] During the simulated parachute jump, the airflow direction in the vortex area will constantly change. Therefore, it is necessary to repeat the airflow direction determination and attitude adjustment steps. When the airflow conditions no longer meet 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 vortex separation method for simulating a parachuting process. The method collects air pressure values ​​at multiple locations on a dummy model in real time during the simulated parachuting process, determines whether the dummy has entered the vortex zone, and adjusts the dummy model's posture 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, providing strong support for the research and optimization of skydiving.

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

[0097] The manikin has parts that simulate the human body structure, including a body, a left arm, a right arm, a left leg, a right leg, and a head, and each part is connected by a joint motor. The left and right arms each include an upper arm and a lower arm, and the upper and lower arms are also connected by a joint motor. The left and right legs each include a thigh and a calf, and the thigh and calf are also connected by a joint motor.

[0098] Air pressure sensor groups are distributed on the left arm, right arm, chest, back, and head of the dummy model to collect real-time air pressure values ​​at various locations.

[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 has entered the vortex area and the direction of the airflow according to predetermined rules;

[0100] The motor control system is connected to the data processing unit and the joint motors of the dummy model, and adjusts the motors according to the judgment results 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, in which a computer program is stored. When the computer program is executed by a processor, the above-mentioned method steps are implemented.

[0102] In 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 this application.

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

[0105] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0106] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 ​​at multiple locations on the dummy model during simulated skydiving; S2. judging whether the dummy has entered the eddy current zone based on the collected air pressure value and a predetermined eddy current judgment rule; S3. Using the dummy model as a reference body, set the airflow directions in the vortex area; S4. If the dummy model enters the vortex area, the direction of the airflow to the dummy model is determined based on the collected air pressure value and the predetermined airflow determination rule; S5. According to the change in the direction of the airflow 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 has left the vortex area.

2. The eddy current shedding method for simulating parachute landing according to claim 1, characterized in that: In step S1, real-time collection of air pressure values ​​at multiple locations of the dummy model during the simulated parachuting process includes: Install air pressure sensors 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-processing operations such as filtering and denoising are performed.

3. The eddy current shedding method for simulating parachute landing according to claim 1, characterized in that: In step S2, judging whether the dummy has entered the eddy current zone 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 chest or between the head and back is set. When the actual pressure difference exceeds this range, it is also determined that the dummy model has entered the vortex area.

4. The eddy current shedding method for simulating 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 vortex area are set as follows: 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 flow; 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 to the feet of the dummy model, 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 eddy current shedding method for simulating parachute landing according to claim 1, characterized in that: In step S4, the direction of the airflow to the dummy is determined based on the collected air pressure value and the predetermined airflow determination rule, including: Calculate the difference between the head pressure and the average of the chest and back 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 and the average of the head and chest pressures. If the difference is positive and exceeds a preset threshold, the airflow is judged to be from back to front. If the difference is negative and the absolute value exceeds a preset threshold, the airflow is judged to be from front to back. The air pressure difference between the left and right arms is calculated. If the difference is positive and exceeds the preset threshold, the airflow is judged to be blowing from left to right. If the difference is negative and the absolute value exceeds the preset threshold, the airflow is judged to be blowing from right to left.

6. The eddy current shedding method for simulating parachute landing according to claim 1, characterized in that: In step S5, adjusting the dummy's posture 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 dummy model's head is controlled to tilt back, the left and right upper arms are opened and swung backward, the left and right forearms are straightened, the left and right thighs are opened, and the left and right calves are bent backward; When the airflow is determined to be forward, the dummy model's head is controlled to bend forward, the left and right upper arms are both opened and swung forward, the left and right forearms are both straightened, the left and right thighs are both raised forward, and the left and right calves are both straightened; When the airflow is judged to be to the right, control the right upper arm to open to the right, right forearm to straighten, right thigh to open to the right, calf to straighten, and 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 eddy current shedding method for simulating parachute landing according to claim 6, characterized in that: In step S5, according to the change in the direction of the airflow 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, adjusting the body to face the wind from the front or back, and then executing the posture adjustment strategy 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 shedding during parachuting according to any one of claims 1 to 7, characterized in that: include: The manikin has parts that simulate the human body structure, including a body, a left arm, a right arm, a left leg, a right leg, and a head, and each part is connected by a joint motor. The left and right arms each include an upper arm and a lower arm, and the upper and lower arms are also connected by a joint motor. The left and right legs each include a thigh and a calf, and the thigh and calf are also connected by a joint motor. Air pressure sensor groups are distributed on the left arm, right arm, chest, back, and head of the dummy model to collect real-time air pressure values ​​at various locations. 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 has entered the vortex area and the direction of the airflow according to predetermined rules; The motor control system is connected to the data processing unit and the joint motors of the dummy model, and adjusts the motors according to the judgment results 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 according to 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, wherein: When the processor executes the computer program, the method steps according to any one of claims 1 to 4 are implemented.

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