CN111354240A

CN111354240A - Ejection and/or parachute jumping life-saving training method based on VR

Info

Publication number: CN111354240A
Application number: CN201811482671.0A
Authority: CN
Inventors: 胡进海; 关文利; 郭军虎
Original assignee: Xi'an Guhe Aviation Technology Co ltd
Current assignee: Xi'an Guhe Aviation Technology Co ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-06-30

Abstract

The invention provides a launching and/or parachuting lifesaving training method based on VR, which comprises the steps of obtaining historical flight accidents of various airplanes and carrying out three-dimensional modeling; the established three-dimensional model is led into a three-dimensional virtual reality development engine, a flight accident model is established according to the physical characteristics of a target airplane, and a flight accident scene is displayed on VR interactive equipment; the pilot experiences the flight accident process through the VR interactive device that wears to judge whether start the ejection seat and when start the ejection seat. The lifesaving training method is not limited by the type of the airplane and the number of pilots, the typical ejection event of the typical airplane at present can be transplanted into the target airplane, and the pilots experience the flight accident process and the special parachute jumping process through the VR interactive equipment worn by the pilots, so that the aims of improving the capability of the pilots to quickly make ejection decision under the emergency condition of the airplane and correctly handling parachute opening faults and avoiding dangers in the landing/water landing process after ejection are fulfilled.

Description

Ejection and/or parachute jumping life-saving training method based on VR

Technical Field

The invention belongs to the technical field of aviation protection and lifesaving, and particularly relates to a VR-based ejection and/or parachuting lifesaving training method.

Background

With the continuous improvement of the flying speed of the airplane, it becomes more and more difficult to climb out of the cockpit for parachuting and escape by means of the physical strength of the pilot alone. When the flying speed of the airplane reaches 500km/h, the pilot can take an emergency off-airplane lifesaving way only by means of external force. Near the end of world war ii, germany first used the catapult seat as a lifesaving tool for military aircraft pilots. Since then, the catapult seat has rapidly developed in the united kingdom, the united states, russia, china, etc., and has become an essential life saving device for high-speed military aircraft.

The special nature of the ejection seat, including its disposable nature, the use of which will cause physiological damage to the pilot, the actual ejection means that the aircraft is abandoned, etc., making it untrained in the course of a real flight. And the ejection time, the ejection height, the airplane posture and other factors which are important to whether the ejection is successful need to be mastered by a large number of training parties, so that the ejection simulator is the most effective training form at present for the ejection escape under the emergency condition.

The corresponding ejection lifesaving training simulator is mainly used for performing ejection training theoretical teaching and ejection simulation operation training on pilots. The existing ejection exerciser simulates an ejection seat and a system structure and ejection operation actions. While enabling the pilot to: the student learns to master the correct ejection posture, and the probability of the injury of the ejection spine is reduced; the ejection operation action is skillfully performed, the effective ejection determining time is increased, and more successful lifesaving opportunities are strived for; the aircraft gives the pilot the feeling of ejection and eliminates the fear of the ejection. But are expensive, have poor maneuverability, and are limited by the number of different aircraft models and even pilots.

Disclosure of Invention

The invention aims to overcome the defects that a simulator in the existing ejection lifesaving training method is expensive in price, low in operability and limited by different airplane models and even the number of pilots.

Therefore, the invention provides an ejection life-saving training method based on VR, which comprises the following steps:

s101, acquiring historical flight accidents of various airplanes and performing three-dimensional modeling;

s102, importing the established three-dimensional model into a three-dimensional virtual reality development engine, establishing a flight accident model of the target airplane in the three-dimensional virtual reality development engine according to the physical characteristics of the target airplane, and displaying a flight accident scene of the target airplane on VR interactive equipment;

s103, a pilot of the target aircraft experiences a flight accident process through the VR interaction equipment worn by the pilot, and judges whether to start the ejection seat and when to start the ejection seat;

and S104, feeding back the action of the pilot for handling the flight accident to a computer loaded with a flight accident model.

The invention also provides a parachute life-saving training method based on VR, comprising the following steps:

s201, acquiring parachuting processes of various airplanes and performing three-dimensional modeling;

s202, importing the established three-dimensional model into a three-dimensional virtual reality development engine, establishing a parachuting special situation model of the target airplane in the three-dimensional virtual reality development engine according to the physical characteristics of the target airplane, and displaying the parachuting special situation scene of the target airplane on VR interaction equipment;

s203, a pilot of the target aircraft experiences a parachuting fault process through the VR interactive equipment worn by the pilot, and deals with a special parachuting situation;

and S204, the action of the pilot for dealing with the special parachuting situation is fed back to the computer with the special parachuting situation model.

The invention also provides a VR-based ejection parachute jumping life-saving training method, which comprises the following steps:

s301, acquiring historical flight accidents and parachuting processes of various airplanes and performing three-dimensional modeling;

s302, the established three-dimensional model is led into a three-dimensional virtual reality development engine, a flight accident model and a parachuting special situation model of the target airplane are established in the three-dimensional virtual reality development engine according to the physical characteristics of the target airplane, and a flight accident scene and a parachuting special situation scene of the target airplane are displayed on VR interactive equipment;

s303, a pilot of the target aircraft experiences the flight accident process through the VR interaction equipment worn by the pilot, and judges whether to start the ejection seat and when to start the ejection seat;

s304, if the pilot starts the ejection seat, the ejection seat is ejected, the pilot of the target aircraft experiences a parachuting fault process through the VR interactive equipment worn by the pilot, and special parachuting situations are handled;

s305, the action of the pilot for dealing with the flight accident and the action of dealing with the special parachuting situation are both fed back to the computer loaded with the flight accident model and the special parachuting situation model.

Further, the step S103 or the step S303, where the pilot of the target aircraft experiences a flight accident process through the VR interaction device worn by the pilot, and determines whether to activate the ejection seat and when to activate the ejection seat, includes:

a pilot operates a steering column and pedals to adjust the flight attitude of the airplane and/or operates a throttle lever to adjust the size of a throttle;

the pilot judges that the ejection handle on the ejection seat is pulled to start ejection.

Further, the pilot of the target aircraft in step S203 or step S304 experiences a parachuting failure process through the VR interaction device worn by the pilot, and handles a special parachuting situation, including:

a pilot suspended by a strap watches a scene when a parachute lands or is parachuted and water is caught at a first person visual angle according to VR interactive equipment worn by the pilot;

the pilot operates the operating belt of the parachute to decelerate the parachute or adjust the posture of the parachute.

Further, the VR interaction device comprises VR glasses/helmets, a VR handle and a VR locator, and the VR handle and the VR locator are wirelessly connected with the VR glasses/helmets;

the VR handle is used for man-machine interaction between a pilot and a computer;

the VR locator is used for locating the positions and postures of VR glasses/helmets and VR handles.

Furthermore, the ejection life-saving training method based on VR or the parachuting life-saving training method based on VR or the ejection parachuting life-saving training method based on VR also comprises a display connected with the computer, wherein the display is used for displaying a flight scene, a third party scene and a parachuting scene of the pilot visual angle, and all the scenes can be switched and displayed.

In particular, the physical characteristics of the target aircraft include a weight center of gravity, a moment of inertia, aerodynamic characteristics, and engine thrust of the target aircraft.

Further, the modeling is performed through three-dimensional modeling software Maya or 3DsMAX, and the three-dimensional virtual reality development Engine is Unity3D or non Engine.

The invention has the beneficial effects that: the launching and/or parachuting lifesaving training method based on VR provided by the invention is not limited by the model of the airplane and the number of pilots, the typical launching event of the current typical airplane can be transplanted to the target airplane, and the pilots experience the flight accident process and/or the special parachuting process through the VR interaction equipment worn by the pilots, so that the aims of improving the capability of the pilots to quickly make launching decisions under the emergency condition of the airplane and correctly handling parachute opening faults and avoiding dangers in the landing/water landing process after launching are fulfilled.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a flow chart diagram of an ejection life-saving training method based on VR.

Fig. 2 is a flow diagram of a VR-based parachuting rescue training method.

Fig. 3 is a flow diagram of a VR-based launch parachute life-saving training method.

Fig. 4 is a connection relation diagram of components in the VR-based launch parachute life-saving training method.

Description of reference numerals:

VR glasses/helmets; 2. a display; 3. a six-degree-of-freedom motion platform; 4, VR handle; 5, VR locator; 6. and (4) a computer.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

In the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the VR-based ejection and/or parachute jumping life-saving training method described in this specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

First embodiment

The embodiment provides a VR-based ejection life-saving training method as shown in fig. 1, which includes:

Specifically, after historical flight accidents of various airplanes are obtained, three-dimensional modeling is carried out through Maya software or 3DsMAX software. MAYA software is a famous three-dimensional modeling and animation software under Autodesk flag, and 3D Studio Max, often referred to as 3ds Max or Max, is a three-dimensional animation rendering and producing software developed by internet (later incorporated by Autodesk), which is based on a PC system, both of which are common software in three-dimensional modeling, are mature technologies well known to those skilled in the art, are prior arts, and do not serve as a protection point of the present invention, and therefore, detailed description thereof is omitted here.

In order to establish a three-dimensional model matched with the target aircraft, namely, a flight accident model aiming at the target aircraft is established according to physical characteristics or parameters such as the weight center of gravity, the moment of inertia, the aerodynamic characteristics, the Engine thrust and the like of the target aircraft, the establishment is carried out through Unity3D or non Engine. Specifically, Unity3D is a multi-platform, comprehensive game development tool developed by Unity Technologies that lets players easily create types of interactive content such as three-dimensional video games, building visualizations, real-time three-dimensional animations, etc., and is a fully integrated professional game engine; the UNREAL Engine is named as a fantasy ENGINE, is the top development ENGINE which is the most famous and most authorized in the world at present, and the Unreal Engine 3D ENGINE adopts the latest new technologies such as instant light track, HDR illumination technology, virtual displacement … and the like at present and can calculate two hundred million polygon operations in real time per second.

Both of the above two types of software are commonly used in development engines, are well known to those skilled in the art, are prior art, and are not considered as protection points of the present invention, and therefore will not be described in detail herein.

The modeling software is only an example, and is not limited to this, and other modeling software may be used.

Specifically, the modeling process comprises the steps of constructing a terrain model, an airplane model and a cockpit model by using three-dimensional modeling software (Maya software or 3DsMAX software), then importing the models into a three-dimensional virtual reality development engine (Unity 3D or UnrealEngine), modeling the flight accident process according to the physical characteristics of a target airplane, transplanting the flight accident process to the target airplane, enabling a pilot of the target airplane to experience the whole flight accident process at a first visual angle by wearing VR interactive equipment, adjusting the flight attitude of the airplane by operating a pilot lever and a pedal in a simulation mode, and/or adjusting the size of an accelerator by operating a throttle lever, judging whether the seat needs to be ejected, if the judgment needs to be ejected, selecting a proper time to pull a handle on the ejection seat, starting ejection, and simultaneously displaying a flight scene, a third party scene and the like at the visual angle of the pilot on a display, and the scenes can be freely switched, so that a user can conveniently master the conditions of a pilot and a target airplane in time, and further can make adjustment in time. The computer will then automatically evaluate the aircraft emergency as a function of pilot specifics, including pilot selection of ejection opportunities and ejection procedures.

Further, the flight accident process is modeled according to the physical characteristics of the target aircraft, wherein the physical characteristics of the target aircraft mainly refer to the weight center of gravity, the moment of inertia, the aerodynamic characteristics and the engine thrust of the target aircraft, but are not limited thereto, and other characteristics and parameters of the target aircraft can be added on the basis of the physical characteristics.

The specific use method of VR interaction equipment worn by a pilot is as follows: the pilot wears VR glasses/helmet, holds the VR handle and selects corresponding functions by operating keys on the VR handle, such as adjusting the angle and direction of the visual angle, returning to the main interface and the like, and can specifically operate according to the selected VR interaction equipment, that is to say, the VR handle is used for realizing man-machine interaction between the pilot and the computer. And VR glasses/helmet and VR handle are in the operation process, in order to accurate acquisition pilot's position in the reality to feedback the VR content fast, VR locator 5 has 2 at least and establishes on the mount relatively, and the mount is installed on six degrees of freedom motion platform 3, obtains pilot's action information through the VR locator.

Particularly, in the embodiment, the pilot sits on the ejection seat, the ejection seat is mounted on the six-degree-of-freedom motion platform, and the six-degree-of-freedom motion platform provides the attitude, overload change and vibration feeling of the airplane in various states to the pilot, so that the six-degree-of-freedom motion is realized.

Second embodiment

The embodiment provides a VR-based ejection life-saving training method as shown in fig. 2, which includes:

Specifically, a terrain model, an airplane model and a cockpit model are built by using three-dimensional modeling software (Maya software or 3DsMAX software), then the models are imported into a three-dimensional virtual reality development Engine (Unity 3D or non Engine), so as to model a parachute jumping process according to physical characteristics of a target airplane, the parachute jumping process is transplanted to the target airplane, a target airplane pilot wears VR interaction equipment, the VR interaction equipment simulates a parachute opening process fault, a dangerous scene during parachute jumping and landing, a dangerous scene during parachute jumping and water landing and the like, the pilot experiences the whole parachute jumping process at a first visual angle, the pilot hung in the air by a strap observes the scene during parachute jumping and landing or parachute landing at a first person visual angle according to the worn VR interaction equipment, and the pilot operates a life-saving parachute operating strap at the same time, so that the life-saving parachute is decelerated or the posture of the life-saving umbrella is adjusted. The actions are fed back to the computer, and the computer automatically evaluates the actions according to the specific performance of the pilot for handling the emergency condition of the airplane, including the landing process or the water-catching process.

In the process of simulating parachuting, the flight scene, the third party scene and the like of the visual angle of the pilot are displayed on the display, and the scenes can be freely switched, so that the user can conveniently master the conditions of the pilot and the target aircraft in time and make adjustment in time.

Further, the parachuting process is modeled according to the physical characteristics of the target aircraft, wherein the physical characteristics of the target aircraft mainly refer to the weight center of gravity, the moment of inertia, the aerodynamic characteristics and the engine thrust of the target aircraft, but are not limited thereto, and other characteristics and parameters of the target aircraft can be added on the basis of the physical characteristics.

The specific use method of VR interaction equipment worn by a pilot is as follows: the pilot wears VR glasses/helmet, holds the VR handle and selects corresponding functions by operating keys on the VR handle, such as adjusting the angle and direction of the visual angle, returning to the main interface and the like, and can specifically operate according to the selected VR interaction equipment, that is to say, the VR handle is used for realizing man-machine interaction between the pilot and the computer. And VR glasses/helmet and VR handle are in the operation process, for accurate acquisition pilot position in the reality to in feeding back VR content fast, the VR locator is installed on the parachuting suspension, and the parachuting suspension is placed in and is launched the seat, obtains pilot's action information through the VR locator.

Third embodiment

The embodiment provides a VR-based ejection life-saving training method as shown in fig. 3, which includes:

Specifically, the embodiment is different from the first embodiment or the second embodiment in that, in the life-saving training system of the embodiment, a pilot may perform ejection training first, if it is determined that ejection is needed, the pilot pulls an ejection handle of an ejection seat to simulate ejection, then enters into parachuting training, and simulates a dangerous scene of failure or landing and water during an parachute opening process, and the pilot experiences and deals with a special parachuting situation through VR interaction equipment.

Fourth embodiment

On the basis of the first embodiment, the second embodiment or the third embodiment, further, the VR interaction device comprises VR glasses/helmets 1, VR handles 4, and VR locators 5, wherein the VR handles 4 and the VR locators 5 are wirelessly connected to the VR glasses/helmets 1; the VR handle 4 is used for man-machine interaction between a pilot and the computer 6; and the VR positioner 5 is used for positioning the positions and postures of the VR glasses/helmet 1 and the VR handle 4.

The ejection lifesaving training method based on VR further comprises a display 2 connected with the computer 6, wherein the display 2 is used for displaying a flight scene, a third party scene and a parachuting scene of the visual angle of a pilot, and all the scenes can be switched and displayed.

Specifically, the VR handle 4 and the VR positioner 5 are wirelessly connected with the VR glasses/helmet 1, the VR glasses/helmet 1 is connected with the display 2 and the computer 6 respectively, and the computer 6 is connected with the display 2. VR helmet 1 wears in pilot's head, and pilot's handheld VR handle 4, VR locator 5 have at least 2 and establish relatively on the mount, and the mount is installed on six degrees of freedom motion platform 3.

As a preferred embodiment, the fixing frame is of a cuboid structure and comprises four horizontal rods which are arranged at the top of the ejection seat and are connected end to form a square shape, the joints of the adjacent horizontal rods are respectively connected with vertical rods which are vertically fixed on the upper surface of the six-degree-of-freedom motion platform 3, a cross rod which is parallel to the horizontal rods is arranged between the two adjacent vertical rods, and at least one pair of the cross rods is arranged oppositely; at least one pair of VR locators 5, each facing towards the VR glasses/helmet 1, is mounted on diagonal points of a square-shaped structure formed by the four horizontal rods.

Before ejection, the VR glasses/helmet 1 displays a simulated flight scene and displays the pilot's field of view and all the pilot's actions on the display 2, specifically, the display displays the flight scene from the pilot's perspective or the scene from a third party's perspective and can switch between the scenes.

When parachuting after ejection, the VR glasses/helmet 1 displays a first person viewing angle during parachuting, or displays a simulated parachuting scene, and the pilot decelerates the parachute or adjusts the posture of the parachute through the operating band according to the seen scene.

The ejection seat is arranged on the six-degree-of-freedom motion platform 3, and the six-degree-of-freedom motion platform 3 provides attitude, overload change and vibration feeling of the airplane in various states for the pilot, so that six-degree-of-freedom motion is realized.

It should be noted that, in the present invention, the pilot may wear the VR interaction device to perform the ejection lifesaving training alone (i.e. the first embodiment), or perform the parachuting lifesaving training alone (i.e. the second embodiment), or perform the ejection lifesaving training before performing the parachuting lifesaving training (i.e. the third embodiment).

In conclusion, the ejection life-saving training method based on VR provided by the invention is not limited by the type of the airplane and the number of pilots, the typical ejection event of the typical airplane at present can be transplanted to the target airplane, and the pilots experience the flight accident process and the special parachute jumping process through the VR interaction equipment worn by the pilots, so that the aims of improving the capability of the pilots to quickly make ejection decision under the emergency condition of the airplane and correctly handling parachute opening fault and avoiding danger in the landing/landing process after ejection are fulfilled.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims

1. An ejection life-saving training method based on VR is characterized by comprising the following steps:

2. A parachute life-saving training method based on VR is characterized by comprising the following steps:

3. A launching parachuting lifesaving training method based on VR is characterized by comprising the following steps:

4. The VR-based ejection life-saving training method of claim 1 or the VR-based ejection parachuting life-saving training method of claim 3, wherein the step S103 or the step S303 is that a pilot of the target aircraft experiences a flight accident process through a VR interaction device worn by the pilot and determines whether to activate an ejection seat and when to activate the ejection seat, and the step S103 or the step S303 includes:

5. The VR-based parachuting rescue training method of claim 2 or the VR-based catapult-assisted parachuting rescue training method of claim 3, wherein the pilot of the target aircraft experiences a parachuting failure process through a worn VR interaction device and handles parachuting special situations in step S203 or step S304, comprising:

6. The VR-based ejection life-saving training method of claim 1 or the VR-based parachuting life-saving training method of claim 2 or the VR-based ejection life-saving training method of claim 3, wherein the VR interaction device comprises VR glasses/helmet, VR handles, VR locators, and the VR handles and VR locators are wirelessly connected to VR glasses/helmet;

7. The VR-based ejection life-saving training method of claim 1, the VR-based parachuting life-saving training method of claim 2, or the VR-based ejection parachute-saving training method of claim 3, further comprising a display connected to the computer, wherein the display is used for displaying a flight scene, a third party scene, and a parachuting scene from a pilot perspective, and the display can be switched among the scenes.

8. The VR-based ejection life-saving training method of claim 1 or the VR-based parachuting life-saving training method of claim 2 or the VR-based ejection life-saving training method of claim 3, wherein the physical characteristics of the target aircraft include a center of gravity, a moment of inertia, aerodynamic characteristics, and engine thrust of the target aircraft.

9. The VR-based ejection life-saving training method of claim 1 or the VR-based parachuting life-saving training method of claim 2 or the VR-based ejection parachute life-saving training method of claim 3, wherein the modeling is performed by a three-dimensional modeling software Maya or 3DsMAX, and the three-dimensional virtual reality development engine is Unity3D or unregealengine.