Air pressure self-adaptive safety air cushion system for dry and snow diving platform

Abstract

The invention discloses a self-adaptive air pressure safety air cushion system and method for a dry snow diving platform, and belongs to the technical field of dry snow training facilities. The system comprises a safety air cushion composed of a plurality of independent air chambers, a sensing module used for detecting motion information of a user in real time, a control unit and an air pressure adjusting module. The sensing module is preferably a combination of a millimeter-wave radar and a camera, and the landing opportunity and the landing point area of a user are accurately pre-judged through data fusion. The control unit controls the air pressure adjusting module before impact, and the air pressure of the independent air chamber corresponding to the drop point is specifically reduced to realize buffering; and the air pressure is quickly recovered after collision to provide support. The problem that a traditional air cushion cannot achieve buffering protection and stable supporting at the same time is solved, intelligent and partitioned precise air pressure control is achieved, and the safety and continuity of training are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air cushion for dry snow, in particular to a dry snow jump platform safety air cushion system with self-adaptive air pressure. BACKGROUND

[0002] With the popularity and development of ice and snow sports, the demand for various ski training facilities is increasing. As an important training auxiliary facility, the dry snow jump platform can break through the seasonal and regional restrictions, enabling athletes and enthusiasts to conduct efficient jump skiing training in the non-snow season. During the training process, the safety and training continuity of the athlete after landing after jumping out of the jump platform and completing the technical action are crucial. As a key landing cushion device, the performance of the safety air cushion is directly related to the physical safety and training experience of the trainer, and an ideal safety air cushion needs to achieve a precise balance between absorbing impact force and providing stable support, which are seemingly contradictory functions.

[0003] At present, the dry snow jump platform generally uses inflatable safety air cushions as the landing cushion scheme. Such traditional safety air cushions usually have one or more connected closed air chambers, which are inflated to a preset fixed pressure by a gas pump and then maintained in this state. The cushioning performance completely depends on the initial air pressure setting and the physical structure of the air cushion.

[0004] The traditional fixed air pressure air cushion cannot simultaneously optimize the impact absorption and sliding support in two working conditions. When the air pressure is too low, although good cushioning can be provided, the user is likely to sink into the air cushion after landing, making it difficult to quickly stand up and slide away, thereby disrupting the continuity of the training. When the air pressure is too high, the cushioning is insufficient, and there is a risk of causing hard impact injury to the trainer. Secondly, even if the improved air cushion can be started in advance, the air pressure of the air cushion cannot be adjusted in real time according to the user's state and landing position. Therefore, it is an urgent need to develop a system that can sense the user's state in real time, predict the landing time and position, and adjust the air pressure of the corresponding area of the air cushion, so as to improve the safety and efficiency of the dry snow jump platform training. SUMMARY

[0005] The application provides a dry snow jump platform safety air cushion system with self-adaptive air pressure, which can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a dry snow jump platform safety air cushion system with self-adaptive air pressure, comprising:

[0007] The safety air cushion is composed of a plurality of independent air chambers.

[0008] The sensing module is arranged above the safety air cushion and is used for detecting the motion trajectory, posture and relative position information of the user with respect to the safety air cushion in real time.

[0009] The control unit is in communication connection with the sensing module.

[0010] The air pressure regulating module is connected with the control unit, and each of the independent air chambers is connected with the air pressure regulating module through an air guide pipe.

[0011] Preferably, the sensing module is a millimeter wave radar, a combination of one or more of a millimeter wave radar, a phased array radar and a camera.

[0012] Preferably, the air pressure regulating module comprises an air pump and a gas release electromagnetic valve, and the air pump and the gas release electromagnetic valve are connected with the independent air chamber through independent pipes.

[0013] Preferably, the base is further provided, and the safety air cushion is laid on the upper surface of the base.

[0014] Preferably, the outer side of the base is provided with a sliding outlet, and the sliding outlet is arranged at the lowest point of the safety air cushion.

[0015] A safety air cushion control method comprises the following steps:

[0016] The sensing module is used to acquire the motion trajectory, posture and relative position information of the user with respect to the safety air cushion in real time.

[0017] The control unit predicts the contact timing of the user with the safety air cushion and predicts the landing point area of the user on the safety air cushion composed of the independent air chambers according to the information.

[0018] Before the predicted contact timing, the control unit controls the air pressure regulating module to reduce the internal air pressure of one or more independent air chambers covered by the landing point area.

[0019] After the predicted contact timing, the control unit controls the air pressure regulating execution subsystem to increase the internal air pressure of the one or more independent air chambers.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1. The sensing module can accurately and quickly predict the landing timing and accurate landing point of the user, and on this basis, the system can specifically reduce the air pressure of the air chamber in the landing point area before the impact moment, so that the air chamber can be fully deformed to absorb most of the impact kinetic energy, greatly relieving the impact on the legs, spine and other parts of the user, effectively avoiding the bruise risk caused by the over-hardness of the traditional fixed air pressure air cushion; at the same time, since the air pressure reduction is only for the local area, the other parts of the air cushion still maintain the supporting state, preventing secondary accidents such as rollover, and essentially improving the safety guarantee of training.

[0022] 2. After cushioning, the system immediately and rapidly inflates the compressed air chamber to restore its support strength, allowing the user's skis to quickly gain firm support and smoothly glide off the air mat. This significantly shortens the interval between training movements, ensuring the continuity of the training rhythm and improving training efficiency. The entire process is fully automatic, requiring no manual intervention, providing users with a seamless and smooth experience that closely resembles a real snow landing.

[0023] 3. Compared to traditional systems that require inflation and deflation of the entire air cushion, the independent air chamber structure and zoned control strategy adopted in this invention only regulate the air pressure of a small target area, significantly reducing the required exhaust and replenishment volumes. This not only reduces the power requirements of the air pump and energy consumption, but also makes the system respond faster and control more precise. At the same time, the modular design enhances the reliability and maintainability of the system. Even if a single air chamber fails, it will not affect the normal use of the entire air cushion, resulting in a longer lifespan and lower overall operating costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this application;

[0025] Figure 2 This is the main view of this application.

[0026] In the diagram: 1. Safety air cushion, 11. Independent air chamber, 2. Sensing module, 3. Control unit, 4. Air pressure regulation module, 5. Base, 6. Sliding outlet. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating directional or positional relationships, they are based on the appendix. Figure 2 The orientations or positional relationships shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0029] Please seeFigures 1-2 This application provides the following technical solution: an adaptive air pressure dry ski jump safety air cushion system, characterized in that it includes:

[0030] The safety airbag 1 is composed of multiple independent air chambers 11;

[0031] Specifically, the safety air cushion 1 is the core actuator of the system. It adopts an independent air chamber structure 11, with each air chamber being an independent sealed unit. It is connected to the subsequent air pressure regulation module 4 through an independent air guide tube. The advantage of this structure is that it can achieve precise control of air pressure in different zones. Before the impact, only a few air chambers in the impact area need to be depressurized, while the vast majority of air chambers remain in a rigid supporting state. This ensures the cushioning effect, maximizes the overall stability of the air cushion, and lays the foundation for subsequent rapid inflation and recovery.

[0032] The sensing module 2 is located above the safety air cushion 1 and is used to detect the user's movement trajectory, posture and relative position information with respect to the safety air cushion 1 in real time.

[0033] Control unit 3 is communicatively connected to the sensing module 2;

[0034] Used to predict the timing of contact between the user and the safety air cushion 1 based on the relative position information;

[0035] Based on the motion trajectory and / or posture information, predict the landing area of ​​the user on the safety air cushion 1;

[0036] The air pressure regulating module 4 is connected to the control unit 3, and each of the independent air chambers 11 is connected to the air pressure regulating module 4 through an air guide pipe.

[0037] The control unit 3 is further configured to: before the predicted contact timing, control the corresponding execution unit to operate for one or more independent air chambers 11 covered by the landing area to reduce the air pressure of the one or more air chambers; and control the execution unit to operate at or after the predicted contact timing to increase the air pressure of the one or more air chambers.

[0038] Furthermore, the sensing module 2 is a combination of one or more of the following: millimeter-wave radar, phased array radar, and camera.

[0039] Specifically, when the sensing module 2 includes a camera, the control unit 3 predicts the contact timing and, or predicts the landing area, by fusing ranging data from millimeter-wave radar, millimeter-wave radar or phased array radar with image recognition data from the camera.

[0040] Millimeter-wave radar continuously emits electromagnetic waves through its antenna array and receives the echoes, thereby accurately calculating the user's distance, speed, and movement trajectory. Simultaneously, the camera captures video images of the user. Both are connected to the corresponding interface of control unit 3 via data cables.

[0041] Furthermore, the air pressure regulating module 4 includes an air pump and a venting solenoid valve, both of which are connected to the independent air chamber 11 via independent conduits.

[0042] Specifically, the operation of reducing air pressure is achieved by controlling the air pump to reduce power, shut down, or control the venting solenoid valve to open;

[0043] The operation of increasing air pressure is achieved by controlling the air pump to restore or increase power and, or by controlling the venting solenoid valve to close.

[0044] In some other embodiments of this application, the control unit 3 is a programmable logic controller or an embedded industrial computer.

[0045] Furthermore, it also includes a base 5, with a safety air cushion 1 laid on the upper surface of the base 5.

[0046] Furthermore, the outer side of the base 5 is provided with a sliding outlet 6, which is located at the lowest point of the safety air cushion 1.

[0047] Specifically, the slide outlet 6 is used for users to quickly detach from the safety airbag 1.

[0048] The control unit 3 is configured to control the pressure drop of the air chamber in the impact area and its surrounding area in stages according to the predicted impact force.

[0049] A method for controlling the safety air cushion of a dry ski jump safety air cushion system based on adaptive air pressure includes the following steps:

[0050] The sensing module 2 acquires the user's movement trajectory, posture, and relative position information with the safety airbag 1 in real time.

[0051] Based on the information, the control unit 3 predicts the timing of the user's contact with the safety airbag 1 and forecasts the landing area of ​​the user on the safety airbag composed of independent air chambers 11.

[0052] Before the predicted contact time, the control unit 3 controls the air pressure regulation module 4 to reduce the internal air pressure of one or more independent air chambers 11 covered by the landing area;

[0053] At or after the predicted contact time, the control unit 3 controls the air pressure regulation execution subsystem 4 to increase the internal air pressure of the one or more independent air chambers 11.

[0054] When in use: Install the system at the end of the landing slope of the dry ski jump, ensuring that the safety air cushion 1 is laid flat on the base 5, and that the ski exit 6 is installed in place and smoothly connected.

[0055] Connect the system power supply, start the control unit 3 and sensing module 2, and the air pump starts working, inflating each independent air chamber 11 to the preset initial high pressure state, providing a stable foundation for training.

[0056] Once the trainee jumps from the platform, Sensing Module 2 immediately begins operation. Millimeter-wave radar continuously and accurately tracks the trainee's real-time position, descent speed, and trajectory. Simultaneously, cameras capture images of the trainee's aerial posture.

[0057] This data is transmitted to control unit 3 in real time via a data cable. The data fusion algorithm inside control unit 3 begins to run:

[0058] First, based on the precise distance and velocity data provided by radar, the expected contact time T between the trainee and the safety airbag 1 is calculated using the formulas for free fall and parabolic motion. Simultaneously, combined with attitude information captured by the camera, the calculated landing point is visually corrected and fine-tuned, ultimately accurately predicting the specific landing area the trainee will contact, namely one or more specific independent air chambers 11.

[0059] A moment before the predicted contact time, T-0.3 seconds later, the control unit 3 sends the first set of instructions to the air pressure regulation module 4: open the high-speed venting solenoid valve of the independent air chamber 11 corresponding to the impact area. The control air pump is temporarily reduced in power or shut down, while the air intake solenoid valve in that area remains closed. These actions cause some of the air in the target air chamber to be rapidly expelled, significantly reducing the internal air pressure before impact and creating a soft buffer zone.

[0060] When the trainee's body comes into contact with the depressurized air cushion area, the low-pressure air chambers deform fully, efficiently absorbing impact energy and greatly reducing the impact on the body.

[0061] In the instant following the impact, at T+0.1 seconds, control unit 3 immediately issues a second set of commands to restore the air cushion's support function: close the deflation solenoid valve in the impact area; start the air pump to full power and open the intake solenoid valve of the target air chamber; high-pressure air rapidly fills the air chamber, restoring its rigidity in a very short time and providing a solid support surface for the trainee's snowboard.

[0062] After gaining stable gliding support, the trainee can smoothly exit through exit 6.

[0063] At the same time, the air pressure regulation module 4 maintains the air pressure in each air chamber or makes minor adjustments. The system automatically resets and prepares to respond to the next trainee's jump, starting a new round of intelligent cycle.

[0064] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive air pressure safety air cushion system for dry ski jumps, characterized in that, include: The safety airbag (1) is composed of multiple independent air chambers (11); The sensing module (2) is located above the safety air cushion (1) and is used to detect the user's movement trajectory, posture and relative position information with respect to the safety air cushion (1) in real time. The control unit (3) is communicatively connected to the sensing module (2); The air pressure regulating module (4) is connected to the control unit (3), and each of the independent air chambers (11) is connected to the air pressure regulating module (4) through an air guide pipe.

2. The adaptive air pressure dry ski jump safety air cushion system according to claim 1, characterized in that, The sensing module (2) is one or more of the following: millimeter-wave radar, lidar, phased array radar, and camera.

3. The adaptive air pressure dry ski jump safety air cushion system according to claim 1, characterized in that, The air pressure regulating module (4) includes an air pump and a venting solenoid valve. Both the air pump and the venting solenoid valve are connected to an independent air chamber (11) through independent conduits.

4. The adaptive air pressure dry ski jump safety air cushion system according to claim 1, characterized in that, It also includes a base (5) and a safety air cushion (1) laid on the upper surface of the base (5).

5. The adaptive air pressure dry ski jump safety air cushion system according to claim 4, characterized in that, The outer side of the base (5) is provided with a sliding outlet (6), which is located at the lowest point of the safety air cushion (1).

6. A method for controlling a safety air cushion based on the system described in any one of claims 1-5, characterized in that, Includes the following steps: The sensor module (2) acquires the user's movement trajectory, posture and relative position information with the safety airbag (1) in real time. The control unit (3) predicts the timing of the user's contact with the safety airbag (1) based on the information, and predicts the landing area of ​​the user on the safety airbag composed of independent air chambers (11). Before the predicted contact time, the control unit (3) controls the air pressure regulation module (4) to reduce the internal air pressure of one or more independent air chambers (11) covered by the landing area; At or after the anticipated contact time, the control unit (3) controls the air pressure regulation execution subsystem (4) to increase the internal air pressure of the one or more independent air chambers (11).

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