Gliding landing safety protection garment based on multi-mode deceleration and intelligent control

Abstract

The invention discloses a gliding landing safety protection garment based on multi-mode deceleration and intelligent control, which comprises a wearing body, and the wearing body comprises a pneumatic structure layer, a mechanical control layer and an intelligent sensing layer. The pneumatic structure layer comprises gradient composite fabric, a self-inflation and chemical reaction combined air bag and a plurality of groups of variable attack angle airfoil gliding surfaces, and each group of variable attack angle airfoil gliding surfaces comprises a plurality of elastic structure ropes; the mechanical control layer comprises a plurality of magneto-rheological ball screw coupling driving devices, the magneto-rheological ball screw coupling driving devices comprise a plurality of micro motors and ball screws, output shafts of the micro motors are connected with the ball screws, and the ball screws can drive one ends of the corresponding elastic structure ropes to be opened when rotating; the other end of each elastic structure rope is fixed to the gradient composite fabric, and the intelligent sensing layer is arranged on the back face of the wearing body. The method is high in environmental applicability.

Description

Technical Field

[0001] The present invention relates to the safety equipment technology industry in the low-altitude economic field, and specifically to a gliding landing safety protective clothing based on multi-modal deceleration and intelligent control, which is particularly suitable for active deceleration and impact protection in low-altitude (30-1000 meters) falling scenarios. Background Art

[0002] In the existing technology, height fall protection mainly relies on the following technologies: 1. Traditional parachutes (e.g., patent application number CN201510123456.7): These rely on a parachute bag deployment mechanism, but have a high risk of failure at low altitudes (<100 meters) and cannot meet the needs of sudden fall scenarios.

[0003] 2. Inflatable airbag (e.g., patent application number US20180015234A1): uses a pressure-triggered inflation valve, but the response delay exceeds 500ms, and the inflation rate is insufficient (<50L / s). The airbag is equipped with guanidine nitrate / hydrogen peroxide / sodium azide safety airbag. When it detects a fall speed exceeding 10m / s at a distance of 30 meters, it can be quickly inflated and deployed in an emergency landing, expanding the airbag volume to form a buffer protection area. The CPU can automatically adjust the inflation speed and volume according to different dangerous situations.

[0004] 3. Passive protective clothing (e.g., patent application number JP2020100000A): This relies on the energy absorption of the material and air resistance to disperse the impact force. According to the lift formula, by adjusting the falling angle of attack, the lift is increased while increasing the resistance, thereby achieving the ability of active deceleration.

[0005] In summary, the existing high-altitude protection technology has the following problems: 1. Low-altitude failure risk: Traditional parachutes have difficulty deploying at altitudes below 100 meters, resulting in a high landing speed. 2. High technical and psychological requirements for the wearer: Changing the angle of attack between the body and the air requires considerable experience. Although the patented CPU can calculate better angle of attack data, it still requires the wearer to implement it. 3. Poor environmental adaptability: The material becomes brittle below -20°C, resulting in a decrease in protective performance. Therefore, improvements are needed. Summary of the Invention

[0006] The purpose of the present invention is to provide gliding landing safety protective clothing based on multimodal deceleration and intelligent control, so as to solve the problems raised in the above background technology that the existing high-altitude protection technology has the risk of failure at low altitude, has high technical and psychological requirements for people, that is, high wearing requirements, and poor environmental applicability.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a gliding landing safety protective clothing based on multimodal deceleration and intelligent control, comprising a wearable body, the wearable body comprising an aerodynamic structure layer, a mechanical control layer, and an intelligent sensing layer, the aerodynamic structure layer comprising a gradient composite fabric, a self-inflating and chemical reaction combined airbag, and a variable angle of attack airfoil gliding surface, the self-inflating and chemical reaction combined airbags being asymmetrically distributed and located on the inner side of the gradient composite fabric, the gradient composite fabric being three-dimensionally woven from high-strength nylon 66 and spandex reinforcement ropes, the variable angle of attack airfoil gliding surfaces being provided in multiple groups, and each group having a plurality of airfoil gliding surfaces. The variable angle of attack airfoil gliding surfaces all include several expandable elastic structural ropes. The mechanical control layer includes several magnetorheological ball wire coupling drive devices that individually control the expansion of each group of variable angle of attack airfoil gliding surfaces. The magnetorheological ball wire coupling drive devices include several micro motors and ball screws. The output shafts of the several micro motors are connected to the ball screws. When the ball screws rotate, they can drive one end of the corresponding elastic structural rope to expand. The other end of each elastic structural rope is fixed to the gradient composite fabric. The intelligent sensing layer is arranged on the back of the wearable body to realize alarm reminders based on wind speed, air pressure, position, inertia, and user health information status.

[0008] Preferably, the intelligent sensing layer includes a CPU and a barometric altimeter, a wind speed sensor, an airbag airtightness strength sensor, a collision warning device, a water immersion sensor, an accelerometer, a gyroscope, a force sensor, a satellite positioning device, a pressure sensor, an inertial measurement unit, a proximity sensor, a strain sensor, a health monitoring sensor, an automatic sound and light alarm device, and a battery electrically connected to the CPU.

[0009] Preferably, the distribution structure of the airbags combined with self-inflation and chemical reaction on the front and back of the wearable body is consistent, and all include self-inflating airbag one, self-inflating airbag two, self-inflating airbag three, self-inflating airbag four, self-inflating airbag five, and self-inflating airbag six, and self-inflating airbag one, self-inflating airbag two, self-inflating airbag three, self-inflating airbag four, self-inflating airbag five, and self-inflating airbag six form a large-character structure, and a group of variable-angle-of-attack airfoil gliding surfaces are provided between self-inflating airbag one and self-inflating airbag five, and a group of variable-angle-of-attack airfoil gliding surfaces are provided between self-inflating airbag three, self-inflating airbag four, and self-inflating airbag six.

[0010] Preferably, in order to achieve later backup, a backup umbrella bag with a built-in backup umbrella is also provided on the back of the wearable body.

[0011] Preferably, the side of the gradient composite fabric is further provided with a foldable buoyancy layer made of supercritical CO2 foaming material.

[0012] Preferably, the tear strength of the gradient composite fabric is ≥500 MPa, and the surface of the gradient composite fabric is provided with pile.

[0013] Preferably, the variable angle of attack airfoil gliding surface optimizes the lift coefficient CL to 1.8 through an angle of attack adjustment module, and the angle of attack adjustment module is electrically connected to the CPU.

[0014] Preferably, the inflation pressure threshold of the self-inflation and chemical reaction combined airbag is 0.3 kPa.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Improved deceleration performance: The impact speed after a 100-meter drop is reduced to 5-7 m / s, and the peak impact force is reduced to 40% of that of traditional equipment, thereby reducing the risk of low-altitude failure. 2. Redundant safety design: The three-stage braking mechanism (gliding → mechanical braking → parachute ejection) covers an altitude range of 30 to 1,000 meters, thereby reducing the risk of failure at low altitude; 3. Enhanced environmental adaptability: The self-healing hydrophobic coating maintains >99% functional integrity at temperatures between -40°C and +80°C. 4. Optimized response speed: The eddy current inflation device has a speed of 200L / s, the magnetorheological braking system has a delay of <10ms, and the reaction time of guanidine nitrate / hydrogen peroxide / sodium azide is 10-20ms, thereby reducing the wearing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of the gliding landing safety protective clothing based on multi-modal deceleration and intelligent control disclosed in Example 1; Figure 2 This is a schematic diagram of the back structure of the gliding landing safety protective clothing based on multi-modal deceleration and intelligent control disclosed in Example 1; Figure 3 This is a reference diagram of the states of one of the elastic structural ropes in Example 1 when it is expanded and contracted; Figure 4 This is a schematic diagram of the connection between the CPU and other components in Example 1.

[0017] In the figure: wearable body 1, aerodynamic structure layer 101, mechanical control layer 102, intelligent sensing layer 103, gradient composite fabric 1011, self-inflating and chemical reaction combined airbag 1012, variable angle of attack airfoil gliding surface 1013, elastic structure rope 2, micro motor 3, ball screw 4, CPU 5, air pressure altimeter 6, wind speed sensor 7, airbag airtightness strength sensor 8, collision warning device 9, water immersion sensor 10, accelerometer 12, gyroscope 13, Force sensor 14, satellite positioning device 15, pressure sensor 16, inertial measurement unit 17, proximity sensor 18, strain sensor 19, health monitoring sensor 20, automatic sound and light alarm device 21, battery 22, self-inflating airbag one 23, self-inflating airbag two 24, self-inflating airbag three 25, self-inflating airbag four 26, self-inflating airbag five 27, self-inflating airbag six 28, and self-inflating airbag one 23, self-inflating airbag two 24, self-inflating airbag three 25, self-inflating airbag four 26, self-inflating airbag five 27, self-inflating airbag six 28, spare parachute bag 29, foldable buoyancy layer 30, angle of attack adjustment module 31. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0019] Example 1: See also Figures 1-4, this embodiment discloses a gliding landing safety protective clothing based on multimodal deceleration and intelligent control, including a wearable body 1, the wearable body 1 including an aerodynamic structure layer 101, a mechanical control layer 102, and an intelligent sensing layer 103, the aerodynamic structure layer 101 including a gradient composite fabric 1011, a self-inflating and chemical reaction combined airbag 1012 and a variable angle of attack airfoil gliding surface 1013, the self-inflating and chemical reaction combined airbag 1012 is asymmetrically distributed, and the self-inflating and chemical reaction combined airbag 1012 is located on the inner side of the gradient composite fabric, the gradient composite fabric 1011 is three-dimensionally woven from high-strength nylon 66 and spandex reinforcement rope, the variable angle of attack airfoil gliding surface 1013 is arranged in multiple groups, and each group of variable angle of attack airfoil gliding surfaces includes a number of expandable elastic structural ropes 2. It includes several magnetorheological-ball-wire coupling drive devices that individually control the expansion of each group of variable angle of attack airfoil gliding surfaces 1013. The magnetorheological-ball-wire coupling drive devices include several micromotors 3 and ball screws 4. The output shafts of the several micromotors 3 are connected to the ball screws 4. When the ball screws 4 rotate, they can drive one end of the corresponding elastic structure rope 2 to expand. The other end of each elastic structure rope 2 is fixed to the gradient composite fabric 1011. The intelligent sensing layer 103 is arranged on the back of the wearable body 1 for realizing alarm reminders based on wind speed, air pressure, position, inertia, and user health information status. The intelligent sensing layer 103 includes a CPU 5 and a barometric altimeter 6, a wind speed sensor 7, an airbag airtightness strength sensor 8, a collision warning device 9, a water immersion sensor 10, an accelerometer 12, and a gyroscope 13 electrically connected to the CPU 5. Force sensor 14 , satellite positioning device 15 , pressure sensor 16 , inertial measurement unit 17 , proximity sensor 18 , strain sensor 19 , health monitoring sensor 20 , automatic sound and light alarm device 21 , battery 22 .

[0020] Preferably, the distribution structure of the self-inflating and chemical reaction combined airbags 1012 on the front and back of the wearable body 1 is consistent, and all include self-inflating airbag one 23, self-inflating airbag two 24, self-inflating airbag three 25, self-inflating airbag four 26, self-inflating airbag five 27, and self-inflating airbag six 28, and the self-inflating airbag one 23, self-inflating airbag two 24, self-inflating airbag three 25, self-inflating airbag four 26, self-inflating airbag five 27, and self-inflating airbag six 28 form a large-character structure, and a group of variable-angle-of-attack airbag gliding surfaces 1013 are arranged between the self-inflating airbag one 23 and the self-inflating airbag five, and a group of variable-angle-of-attack airbag gliding surfaces 1013 are arranged between the self-inflating airbag three 25, self-inflating airbag four 26, and self-inflating airbag six 28.

[0021] Preferably, in order to achieve later backup, a backup umbrella bag 29 with a built-in backup umbrella is further provided on the back of the wearable body 1.

[0022] Preferably, the side of the gradient composite fabric is further provided with a foldable buoyancy layer 30 made of supercritical CO2 foaming material.

[0023] Preferably, the tear strength of the gradient composite fabric is ≥500 MPa, and the surface of the gradient composite fabric is provided with pile.

[0024] Preferably, the variable angle of attack airfoil gliding surface 1013 optimizes the lift coefficient CL to 1.8 through the angle of attack adjustment module 31, and the angle of attack adjustment module 31 is electrically connected to the CPU 5. The angle of attack adjustment module 31 is based on L=1 / 2ρv 2 The CLS formula is calculated.

[0025] Preferably, the inflation pressure threshold of the airbag 1012 combined with self-inflation and chemical reaction is 0.3 kPa.

[0026] When the present invention is in use, when the user wears the protective clothing, the CPU 5 obtains data information from the barometric altimeter 6, wind speed sensor 7, satellite positioning device 15, inertial measurement unit 17, and accelerometer 12 in real time, and then when the accelerometer detects a signal greater than 2g for 200ms, the elastic structure rope 2 is triggered to unfold ( Figure 3 ), and when the user's flight altitude is <1000m and the speed is >8m / s, the ball screw applies a linearly increasing resistance of 300N to ensure greater safety. The airbag airtightness is detected by the airbag airtightness strength sensor 8, and the collision warning device 9 is used to detect whether there is a collision. Once the minimum collision distance is reached, an alarm is issued to remind. The landing speed after a 100-meter fall is reduced to 5-7m / s, and the peak impact force is reduced to 40% of traditional equipment, thereby reducing the risk of low-altitude failure; at the same time, a three-stage braking mechanism (gliding → mechanical braking → parachute ejection) is adopted to cover the altitude range of 30-1000 meters, thereby reducing the risk of low-altitude failure. The self-healing hydrophobic coating maintains functional integrity of >99% at -40℃ to +80℃, and can achieve an eddy current inflation device speed of 200L / s. The magnetorheological braking system delay is <10ms, and the reaction time of guanidine nitrate / hydrogen peroxide / sodium azide is 10-20ms, thereby reducing the wearing requirements.

[0027] The present invention can realize fall detection: the accelerometer detects a signal of >2g for 200ms, triggering the elastic structure rope 2 to unfold ( Figure 3), during the gliding phase: CPU5 calculates the lift-to-drag ratio in real time (maintains gliding attitude when L / D ≥ 2.4); mechanical braking: when the altitude is <1000m and the speed is >8m / s, the ball screw applies a 300N linearly increasing resistance; parachute ejection: when the altitude is <30m and the speed is >10m / s, the reserve parachute is ejected (deployment time <0.5s).

[0028] When the present invention lands on water, ‌Water immersion trigger‌: The water immersion sensor 10 activates‌ the foldable buoyancy layer 30, with a volume expansion rate of 600% ( Figure 2 ).

[0029] ‌Attitude Adjustment‌: The center of gravity adjustment mechanism is shifted by 15°, switching to a supine floating attitude with a buoyancy of ≥800N.

[0030] The experimental comparison table of the present invention and the traditional technology is as follows:

[0031] The technical effects of the present invention are as follows: 1. Improved deceleration performance: The impact speed after a 100-meter drop is reduced to 5-7 m / s, and the peak impact force is reduced to 40% of that of traditional equipment, thereby reducing the risk of low-altitude failure. 2. Redundant safety design: The three-stage braking mechanism (gliding → mechanical braking → parachute ejection) covers an altitude range of 30 to 1,000 meters, thereby reducing the risk of failure at low altitude; 3. Enhanced environmental adaptability: The self-healing hydrophobic coating maintains >99% functional integrity at temperatures between -40°C and +80°C. 4. Optimized response speed: The eddy current inflation device has a speed of 200L / s, the magnetorheological braking system has a delay of <10ms, and the reaction time of guanidine nitrate / hydrogen peroxide / sodium azide is 10-20ms, thereby reducing the wearing requirements.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gliding landing safety protective clothing based on multi-modal deceleration and intelligent control, comprising a wearable body (1), characterized in that: The wearable body (1) includes an aerodynamic structure layer (101), a mechanical control layer (102), and an intelligent sensing layer (103). The aerodynamic structure layer (101) includes a gradient composite fabric (1011), a self-inflating and chemical reaction combined airbag (1012), and a variable angle of attack airfoil gliding surface (1013). The self-inflating and chemical reaction combined airbag (1012) is asymmetrically distributed, and the self-inflating and chemical reaction combined airbag (1012) is located on the inner side of the gradient composite fabric. The gradient composite fabric (1011) is three-dimensionally woven from high-strength nylon 66 and spandex reinforcement rope. The variable angle of attack airfoil gliding surface (1013) is provided in multiple groups, and each group of variable angle of attack airfoil gliding surfaces includes a plurality of expandable The mechanical control layer (102) of the elastic structure rope (2) includes a plurality of magnetorheological-ball-wire coupling drive devices that individually control the expansion of each group of variable angle of attack airfoil gliding surfaces (1013). The magnetorheological-ball-wire coupling drive devices include a plurality of micromotors (3) and a ball screw (4). The output shafts of the plurality of micromotors (3) are connected to the ball screw (4). When the ball screw (4) rotates, it can drive one end of a corresponding elastic structure rope (2) to expand. The other end of each elastic structure rope (2) is fixed to the gradient composite fabric (1011). The intelligent sensing layer (103) is arranged on the back of the wearable body (1) to realize alarm reminders based on wind speed, air pressure, position, inertia, and user health information status.

2. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 1 is characterized in that: The intelligent sensing layer (103) includes a CPU (5) and a barometric altimeter (6) electrically connected to the CPU (5), a wind speed sensor (7), an airbag airtightness sensor (8), a collision warning device (9), a water immersion sensor (10), an accelerometer (12), a gyroscope (13), a force sensor (14), a satellite positioning device (15), a pressure sensor (16), an inertial measurement unit (17), a proximity sensor (18), a strain sensor (19), a health monitoring sensor (20), an automatic sound and light alarm device (21), and a battery (22).

3. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 2 is characterized in that: The self-inflating and chemical reaction combined airbags (1012) on the front and back of the wearable body (1) have the same distribution structure, including self-inflating airbag one (23), self-inflating airbag two (24), self-inflating airbag three (25), self-inflating airbag four (26), self-inflating airbag five (27), self-inflating airbag six (28), and self-inflating airbag one (23), self-inflating airbag two (24), self-inflating airbag three (25), self-inflating airbag four (26), self-inflating airbag five (27), self-inflating airbag six (28). (25), self-inflating airbag four (26), self-inflating airbag five (27), and self-inflating airbag six (28) form a large-character structure, and a group of variable-angle-of-attack airfoil gliding surfaces (1013) are provided between self-inflating airbag one (23) and self-inflating airbag five, and a group of variable-angle-of-attack airfoil gliding surfaces (1013) are provided between self-inflating airbag three (25), self-inflating airbag four (26), and self-inflating airbag six (28).

4. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 3 is characterized in that: The back of the wearable body (1) is also provided with a spare umbrella bag (29) with a built-in spare umbrella.

5. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 3 is characterized in that: The side of the gradient composite fabric is also provided with a foldable buoyancy layer (30) made of supercritical CO2 foaming material.

6. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 1 is characterized in that: The tearing strength of the gradient composite fabric is ≥500 MPa, and the surface of the gradient composite fabric is increased with fluff.

7. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 1 is characterized in that: The variable angle of attack airfoil gliding surface (1013) optimizes the lift coefficient CL to 1.8 through an angle of attack adjustment module (31), and the angle of attack adjustment module (31) is electrically connected to the CPU (5).

8. The gliding landing safety protective clothing based on multi-modal deceleration and intelligent control according to claim 1 is characterized in that: The inflation pressure threshold of the self-inflation and chemical reaction combined airbag (1012) is 0.3 kPa.

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