A multi-dimensional integrated safety training system and method based on VR scene linkage

Abstract

This invention relates to the field of safety education and training technology, specifically to a multi-dimensional integrated safety training system and method based on VR scene linkage. The multi-dimensional integrated safety training system based on VR scene linkage includes a VR interactive hardware module for providing multi-dimensional haptic feedback in physical space in conjunction with the VR scene. Spatially, it forms a three-dimensional interactive structure of upper, middle, and lower levels, including a top-level module, lateral modules, and a bottom-level module. A training management and control module is used to control the linkage between the VR interactive hardware module and the VR scene. The top-level module includes a main frame, an intelligent suspension mechanism mounted on the main frame, and an object impact mechanism. The lateral modules include at least one handrail structure, which integrates a mechanical entanglement injury simulation mechanism and / or an electrical hazard simulation mechanism. The bottom-level module includes a surface layer, a middle layer, and a bottom layer. The surface layer integrates a step voltage simulation mechanism, and the bottom layer integrates a lifting mechanism for simulating weightlessness.

Description

Technical Field

[0001] This invention relates to the field of safety education and training technology, specifically to a multi-dimensional comprehensive safety training system and method based on VR scene linkage. Background Technology

[0002] In the power, construction, and industrial production sectors, safety training is a crucial line of defense for protecting lives. Traditional safety training often relies on oral lectures, videos, or slideshows, lacking interactivity and failing to leave a lasting impression on trainees. However, real-world accident scenarios are difficult to replicate, making it challenging to conduct practical and cautionary training on specific hazards such as falls from heights, falling objects, and electric shocks. Existing VR safety training systems are largely limited to providing visual and auditory experiences, lacking realistic physical feedback, resulting in poor warning and educational effects. Some systems attempt to integrate simple motion-sensing devices, but these are often functionally limited, with isolated subsystems failing to deeply integrate with the VR scene and unable to simulate various types of complex accident scenarios and their corresponding multi-sensory impacts on a unified platform. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-dimensional comprehensive safety training system based on VR scene linkage, so as to solve the problem that existing VR safety training systems cannot simulate multiple types and full-process complex accident scenarios on a unified platform.

[0004] To address the aforementioned problems, this invention proposes a multi-dimensional comprehensive safety training system based on VR scene linkage. The technical solution adopted is as follows: A multi-dimensional comprehensive security training system based on VR scene interaction includes: VR interactive hardware modules are used to provide multi-dimensional haptic feedback that is linked with VR scenes in physical space. They form a three-dimensional interactive structure in space, including a top-level module, a side-level module, and a bottom-level module. The training management and control module is used to control the linkage between the VR interactive hardware module and the VR scene, and to perform information management of the training process and resources. The top-level module includes a main frame, an intelligent suspension mechanism mounted on the main frame, and an object striking mechanism. The lateral module includes at least one handrail structure, which integrates a mechanical entanglement injury simulation mechanism and / or an electrical hazard simulation mechanism. The bottom module includes a top layer, a middle layer and a bottom layer arranged from top to bottom; the top layer integrates a step voltage simulation mechanism and the bottom layer integrates a lifting mechanism for simulating weightlessness.

[0005] Furthermore, the intelligent suspension mechanism includes a torque motor, a safety rope connected to the torque motor, and a tension sensor mounted on the safety rope; the end of the safety rope is provided with a safety belt hook for personnel to wear.

[0006] Furthermore, the object striking mechanism includes a stepper motor, a slider driven by the stepper motor to rise and fall, an explosion-proof plate disposed above the person's head, and a first pressure sensor for monitoring the impact force; the stepper motor drives the slider to fall and strike the explosion-proof plate.

[0007] Furthermore, the action logic of the top-level module includes: When the VR scene simulates a fall from a height, the torque motor instantly reverses and applies damping or locks, tightening the safety rope. At the same time, the tension sensor synchronously monitors the impact force of the human body at the moment of fall. When the VR scene simulates a falling object impact, the stepper motor drives the slider to rush downwards at high speed and hit the explosion-proof plate. At the same time, the first pressure sensor monitors the impact force.

[0008] Furthermore, the mechanical entanglement injury simulation mechanism includes an airbag-type hand compression mechanism for applying pressure to the hand through the instantaneous expansion of the airbag; the electrical hazard simulation mechanism includes a thermosensitive electrical feedback unit, which employs a PTC heating element and / or a thermosensitive color-changing coating.

[0009] Furthermore, the step voltage simulation mechanism includes multiple independent metal squares, a second pressure sensor disposed below each metal square, a high-frequency oscillator, and a micro-electric stimulator, with insulating material filling the spaces between the metal squares.

[0010] Furthermore, the lifting mechanism used to simulate weightlessness is a scissor lift mechanism driven by a hydraulic pump station; an electromagnetic pressure relief valve is connected in parallel in the hydraulic circuit of the hydraulic pump station, and a hydraulic buffer is provided below the scissor lift mechanism; the intermediate layer is an insulating and vibration-damping layer used to isolate the current leakage of the surface layer and the mechanical vibration of the bottom layer.

[0011] Furthermore, the action logic of the underlying module includes: when the VR scene simulates a fall from a height, the electromagnetic pressure relief valve opens instantly, the scissor lift mechanism sinks rapidly, and is then caught by the hydraulic buffer; When the VR scene simulates step voltage electric shock, the second pressure sensor in the surface layer (9) monitors the distance between the person's feet in real time. When it is determined that the distance between the two feet and the metal square exceeds the safety threshold, the high-frequency oscillator and micro-electric stimulator under the corresponding metal square are activated to simulate the numbness of the legs.

[0012] Furthermore, the training management control module is configured as follows: Receive trigger signals from the VR scene; Based on the trigger signal, a corresponding control command is generated and sent to the corresponding mechanism in the VR interaction hardware module; Receive and record data fed back from various sensors in the VR interaction hardware module.

[0013] This application also provides a multi-dimensional comprehensive security training method based on VR scene linkage, characterized by including the following steps: Step 1: Load the VR training scene through the training management control module; Step 2: According to the scene instructions, control the intelligent suspension mechanism or object impact mechanism of the top module, or control the mechanical entanglement injury simulation mechanism of the side module, or control the step voltage simulation mechanism or lifting mechanism of the bottom module. Step 3: Collect user response data and conduct training evaluation.

[0014] Compared with the prior art, this application has the following beneficial effects: This invention breaks through the limitations of existing VR safety training, which is limited to visual and auditory experiences. By deeply integrating multi-sensory physical feedback with VR scenes through VR interactive hardware modules, it achieves multi-sensory VR immersive training, realizing full sensory linkage of vision, hearing, touch and vestibular sense. This provides trainees with a deeper tactile cognition and significantly improves the warning effect, practicality and teaching efficiency of safety training.

[0015] The VR interactive hardware module of this invention innovatively adopts a three-layer spatial structure design of "top-middle-bottom," highly integrating various accident simulation mechanisms such as high-altitude fall, object impact, mechanical entanglement, and electrical shock into a relatively small physical space. Compared to traditional training bases that require the separate construction of various physical accident simulation devices in a large area, this invention significantly reduces the footprint and lowers the cost of site construction.

[0016] The system of this invention can be further integrated into a shipping container, forming a standardized "containerized" training unit with a high degree of system integration. This modular design gives the system strong mobility and mobile deployment capabilities, effectively solving the problems of dispersed and highly mobile construction sites in industries such as power and construction, where fixed training resources are difficult to fully cover, and facilitating the delivery of training directly to the front-line work site.

[0017] The intelligent suspension mechanism includes a torque motor, a safety rope connected to the torque motor, and a tension sensor mounted on the safety rope. The safety rope has a hook at its end for personnel to wear a safety harness. The torque motor can instantaneously reverse damping or lock, accurately simulating the sudden stop and pulling sensation of the safety rope during a fall from a height. The tension sensor synchronously collects impact force data, ensuring the safety of trainees during realistic fall simulations and providing quantitative physiological force data for training evaluation.

[0018] The object impact mechanism includes a stepper motor, a slider driven by the stepper motor to rise and fall, an explosion-proof plate positioned above the person's head, and a first pressure sensor for monitoring the impact force. The stepper motor drives the slider to fall and impact the explosion-proof plate. By controlling the slider's downward impact against the explosion-proof plate, the impact scenario of an object falling from above is accurately simulated. The first pressure sensor monitors the impact force in real time, allowing trainees to experience realistic psychological and physical impact while ensuring safety, thus strengthening their awareness of potential hazards.

[0019] The action logic of the top-level module includes: When the VR scene simulates a fall from a height, the torque motor instantly reverses and applies damping or locks, tightening the safety rope. At the same time, the tension sensor synchronously monitors the impact force of the human body at the moment of fall. When the VR scene simulates a falling object impact, the stepper motor drives the slider to plunge downwards at high speed, striking the explosion-proof plate. Simultaneously, the first pressure sensor monitors the impact force. This deeply integrates the VR virtual scene with the physical hardware actions: the safety rope automatically tightens to measure force during a fall, and the slider automatically plunges downwards to measure pressure when an object strikes. This breaks through the "lack of tactile feedback" limitation of purely virtual training, achieving multi-dimensional collaborative simulation of sight, touch, and force.

[0020] The mechanical entanglement injury simulation mechanism includes an airbag-type hand compression mechanism, used to apply pressure to the hand through the instantaneous expansion of the airbag; the electrical hazard simulation mechanism includes a thermosensitive electrical feedback unit, which employs a PTC heating element and / or a thermosensitive color-changing coating. The airbag-type hand compression mechanism simulates the pressure sensation of mechanical entanglement through instantaneous expansion, without the risk of hard contact injury; the feedback unit, composed of a PTC heating element and / or a thermosensitive color-changing coating, safely simulates the temperature rise of electrical overheating and provides visual color-changing warnings, intuitively establishing an awareness of electrical hazards.

[0021] The step voltage simulation mechanism includes multiple independent metal squares, a second pressure sensor located below each metal square, a high-frequency vibrator, and a micro-electrical stimulator. The spaces between the metal squares are filled with insulating material. The multiple independent metal squares, in conjunction with the bottom pressure sensor, can locate the trainee's walking path. The high-frequency vibrator and micro-electrical stimulator apply safe and weak tactile / electrical stimulation, while the insulating filling isolates interference, low-costly reproducing the "numbness" warning of step voltage and enhancing emergency step-back memory.

[0022] The lifting mechanism used to simulate weightlessness is a scissor lift mechanism driven by a hydraulic pump station. An electromagnetic pressure relief valve is connected in parallel to the hydraulic circuit of the hydraulic pump station, and a hydraulic buffer is installed below the scissor lift mechanism. The intermediate layer is an insulating and vibration-damping layer used to isolate current leakage from the surface layer and mechanical vibration from the underlying layer. The hydraulic scissor lift, combined with the instantaneous opening of the pressure relief valve, can simulate the sensation of sudden weightlessness. The hydraulic buffer provides bottom protection against hard impacts. The intermediate insulating and vibration-damping layer isolates surface current from underlying vibration, ensuring safety during step voltage and electrical simulation training and preventing signal crosstalk.

[0023] The underlying module's operational logic includes: when the VR scene simulates a high-altitude fall, the electromagnetic pressure relief valve opens instantly, the scissor lift mechanism descends rapidly, and is then caught by the hydraulic buffer. The VR high-altitude fall signal directly triggers the hydraulic circuit to instantly depressurize, the scissor platform descends rapidly, and is then smoothly caught by the buffer. The hardware's dynamic response is synchronized with the VR screen, realistically recreating the entire tactile experience of weightlessness and emergency stop buffering during a fall.

[0024] The training management and control module is configured as follows: Receive trigger signals from the VR scene; Based on the trigger signal, a corresponding control command is generated and sent to the corresponding mechanism in the VR interaction hardware module; It receives and records data from various sensors in the VR interaction hardware module, supporting traceability and quantitative assessment throughout the training process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the multi-dimensional comprehensive safety training system based on VR scene linkage of the present invention; Among them, 1. Top-level module, 2. Side module, 3. Bottom-level module, 4. Handrail structure, 5. Explosion-proof plate, 6. Object impact mechanism, 7. Main frame, 8. Intelligent suspension mechanism, 9. Surface layer, 10. Middle layer, 11. Bottom layer. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] The following description, with reference to the accompanying drawings, illustrates a multi-dimensional integrated safety training system and method based on VR scene linkage, according to embodiments of this application.

[0029] The following is combined with Figure 1 This application provides a detailed description of the multi-dimensional integrated safety training system based on VR scene linkage provided in this application.

[0030] The multi-dimensional integrated safety training system based on VR scene linkage disclosed in this application includes: a VR interactive hardware module for providing multi-dimensional haptic feedback in physical space in linkage with VR scenes, which forms a three-dimensional interactive structure in space, including a top-level module 1, a side module 2, and a bottom-level module 3. The entire VR interactive hardware module can be integrated into a shipping container.

[0031] Specifically, the top-level module 1 is located above the VR experience area. The top-level module 1 includes a main frame 7, an intelligent suspension mechanism 8 installed on the main frame 7, and an object impact mechanism 6. The main frame 7 is welded from H-beams. The side modules 2 are located on both sides of the VR experience area and include at least one handrail structure 4. The handrail structure 4 integrates a mechanical entanglement injury simulation mechanism and / or an electrical hazard simulation mechanism. The bottom-level module 3 adopts a layered design and is located on the floor of the VR experience area. It includes a surface layer 9, a middle layer 10, and a bottom layer 11 arranged from top to bottom. The surface layer 9 integrates a step voltage simulation mechanism, and the bottom layer 11 integrates a lifting mechanism for simulating weightlessness. The middle layer 10 is an insulating and vibration-damping layer used to isolate the current leakage of the surface layer 9 and the mechanical vibration of the bottom layer 11, that is, to prevent the current leakage of the surface layer 9 into the overall experience area and to isolate the mechanical vibration of the bottom layer 11.

[0032] In one specific embodiment, the intelligent suspension mechanism 8 includes a torque motor, a high-strength safety rope connected to the torque motor, and a tension sensor mounted on the safety rope; the end of the safety rope is equipped with a safety belt hook for personnel to wear. The intelligent suspension mechanism 8 is installed at the center of the crossbeam to simulate the locking sensation during a fall from a height. The object impact mechanism 6 includes a stepper motor, a slider driven by the stepper motor to rise and fall, an explosion-proof plate 5 positioned above the personnel's head, and a first pressure sensor for monitoring the impact force; the stepper motor drives the slider to fall and impact the explosion-proof plate 5. The object impact mechanism 6 is installed at the lower part of the crossbeam to simulate falling object impact.

[0033] Based on this, the action logic of the top module 1 includes: when the VR scene simulates a fall from a height, the torque motor instantly applies damping or locks in the opposite direction to tighten the safety rope. At the same time, the tension sensor synchronously monitors the impact force of the human body falling. When the VR scene simulates a falling object hitting the body, the stepper motor drives the slider to rush down at high speed and hit the explosion-proof plate 5. At the same time, the first pressure sensor synchronously monitors the impact force.

[0034] Specifically, the intelligent suspension mechanism 8 is normally in follow-up mode, maintaining a slightly tensioned rope. When the VR scene simulates a fall, the torque motor instantly locks or applies damping in the opposite direction, simulating the jolting sensation of a seatbelt locking. In addition, the tension sensor simultaneously monitors the impact force of the falling body. When the VR scene simulates a heavy object striking the subject, the slider can instantly drop and strike the explosion-proof plate 5 above the subject's head. The explosion-proof plate 5 generates impact vibration and sound, providing the subject with physiological shock and psychological warning. Furthermore, the first pressure sensor monitors the impact force.

[0035] In another specific embodiment, the mechanical entanglement injury simulation mechanism includes an airbag-type hand compression mechanism for applying pressure to the hand through the instantaneous expansion of the airbag. The airbag-type hand compression mechanism is used to simulate mechanical entanglement injuries by applying omnidirectional pressure to the limb through the instantaneous expansion of the airbag, simulating the jamming and compression state of the hand after it has been mechanically entangled.

[0036] The electrical hazard simulation mechanism includes a thermistor electrical feedback unit, which employs a PTC heating element and / or a thermochromic coating. The thermistor feedback unit simulates electrical hazards by utilizing temperature coefficient heating (PTC) technology and a thermochromic coating to simulate the realistic physical phenomena of wire overload heating and smoke.

[0037] In another specific embodiment, the step voltage simulation mechanism includes multiple independent metal squares, a second pressure sensor disposed below each metal square, a high-frequency vibrator, and a micro-electric stimulator, with insulating material filling the spaces between the metal squares. The step voltage simulation mechanism is used to simulate step voltage electric shock. The floor surface is divided into several independent metal squares, with insulating material filling the spaces between the squares. Pressure sensors detect the distance between the feet, and combined with high-frequency vibration and micro-electric stimulation at a safe voltage, the mechanism simulates the numbness in the legs during an electric shock.

[0038] In another specific embodiment, the lifting mechanism used to simulate weightlessness is a scissor lift mechanism driven by a hydraulic pump station. An electromagnetic pressure relief valve is connected in parallel in the hydraulic circuit of the hydraulic pump station, and a hydraulic buffer is located below the scissor lift mechanism. The scissor lift mechanism can drop instantaneously to generate a sense of weightlessness. Based on this, the action logic of the bottom module 3 includes: when the VR scene simulates a fall from a height, the electromagnetic pressure relief valve opens instantaneously, the scissor lift mechanism drops rapidly, and is then caught by the hydraulic buffer; when the VR scene simulates a step voltage electric shock, the second pressure sensor in the surface layer 9 monitors the distance between the person's feet in real time. When it is determined that the distance between the feet and the metal square exceeds a safety threshold, the high-frequency vibrator and micro-electric stimulator under the corresponding metal square are activated to simulate leg numbness. Specifically, during the simulated fall, the rapid pressure relief valve opens, and the floor sinks at a speed close to free fall under gravity, and is then caught by the hydraulic buffer, generating a strong sense of weightlessness.

[0039] The training management and control module is used to control the linkage between the VR interactive hardware module and the VR scene, and to perform information management of the training process and resources, so as to realize unified information management of training resources and processes within the system.

[0040] Specifically, the training management and control module is used to drive the real-time interaction and control between the VR interactive hardware module and the VR virtual scene. The training management and control module is configured as follows: Receive trigger signals from the VR scene; Based on the trigger signal, a corresponding control command is generated and sent to the corresponding mechanism in the VR interaction hardware module; Receive and record data from various sensors in the VR interaction hardware module.

[0041] This application also proposes a multi-dimensional comprehensive security training method based on VR scene linkage, including the following steps: Step 1: Load the VR training scene through the training management control module; Step 2: According to the scene instructions, control the intelligent suspension mechanism (8) or object impact mechanism (6) of the top module (1), or control the mechanical entanglement injury simulation mechanism of the side module (2), or control the step voltage simulation mechanism or lifting mechanism of the bottom module (3). Step 3: Collect user response data and conduct training evaluation.

[0042] The above-mentioned multi-dimensional comprehensive safety training system and method based on VR scene linkage will be further explained with specific embodiments.

[0043] In one specific embodiment, a high-altitude fall accident is simulated: Scenario: This scenario simulates a fall hazard caused by loose scaffolding fasteners, targeting workers working on the exterior facade of a super high-rise building.

[0044] Pre-calibration phase: The trainee wears VR equipment and safety rope and stands on the surface 9 of the bottom module 3; the intelligent suspension mechanism 8 automatically lowers the safety rope and the tension sensor is zeroed and calibrated. VR Story Trigger: The VR scene shows the trainee walking on scaffolding hundreds of meters above the ground. When the trainee accidentally slips and falls in the VR virtual environment, the electromagnetic pressure relief valve of the bottom module 3 instantly opens. The scissor lift loses its support and rapidly sinks under the influence of gravity with near-free fall acceleration, before being caught by a hydraulic buffer. The trainee's body instantly loses balance, experiencing a strong vestibular sense of weightlessness.

[0045] As the body falls, the intelligent suspension mechanism 8 of the top module 1 activates, and the torque motor instantly applies damping or locks in the opposite direction, tightening the safety rope. The tension sensor on the safety rope records the impact force value at the moment of fall.

[0046] In another specific embodiment, falling object impact is simulated: Scenario: Simulating the risk of falling objects from heights during cross-operation of substation structures; Triggering Mechanism: The VR scene shows the trainee performing low-altitude work, with other workers above. In the virtual scene, a brick accidentally falls from above, activating the object impact mechanism 6 in the top-level module 1. A stepper motor drives a slider to descend at high speed, striking the explosion-proof plate 5 located above the trainee's head. The explosion-proof plate 5 generates realistic physical vibrations and impact sounds.

[0047] The first pressure sensor under the explosion-proof plate 5 monitors the impact force, and together with the "blackout" or "dizziness" effects in the VR screen, it enhances the warning effect.

[0048] Extended training: The system randomly adjusts the landing point of falling objects (shifted 200mm to the left / right) to train trainees' instinctive avoidance reaction to falling objects.

[0049] In another specific embodiment, the overheating of the circuit during an electrical hazard is simulated: Scenario: Trainees inspect a power distribution box in a VR environment, and improper wiring in the virtual environment causes the circuit to overload.

[0050] Triggering Mechanism: The electrical hazard simulation mechanism in the handrail structure 4 of the lateral module 2 is activated. The PTC heating element heats up instantly, and trainees feel a distinct burning sensation when they touch the handrail cable. At the same time, the heat-sensitive coating on the cable surface changes from black to red, and white smoke is emitted in conjunction with the smoke generator, achieving a dual warning through both visual and tactile senses.

[0051] In another specific embodiment, step voltage electric shock is simulated as an electrical hazard: Scene setup: The VR scene shows a high-voltage power line breaking and falling to the ground, forming an area of ​​electric potential distribution.

[0052] Triggering Mechanism: The second pressure sensor array on the surface layer 9 of the bottom module 3 scans the trainee's foot position in real time. If the system calculates that the distance between the metal squares where the feet are located exceeds a safety threshold, it determines that a step voltage has been generated. The specific metal squares under the trainee's feet activate a high-frequency oscillator and a micro-electric stimulator, simulating the numbness and tingling sensation caused by current flowing through the legs.

[0053] In another specific embodiment, a mechanical entanglement injury to the hand is simulated: Scenario: The trainee is wearing VR equipment, and the VR scene shows that he is operating a high-speed rotating lathe or conveyor belt equipment.

[0054] Pre-operation guidance: The VR screen shows the trainee operating a high-speed rotating lathe, and the system voice prompts the trainee: "Please hold the equipment control lever with your left hand and prepare to stop the machine."

[0055] Emergency Triggered: The trainee follows instructions and grips the handrail structure 4 of the lateral module 2. At this moment, the capacitive sensor detects the grip signal, and the system enters standby mode.

[0056] Scenario A: In the VR scene, the trainee is wearing cotton gloves, and the threads of the gloves get caught on the rotating lathe spindle. Scenario B: In the VR scene, the trainee reaches in to clean up debris without stopping the machine, causing their hand to get caught. Upon these scenarios, the airbag-type hand compression mechanism activates, the airbag rapidly inflates, and compresses the trainee's palm and fingers. The air pressure is maintained at a preset high pressure for about 2-3 seconds, simulating the hand being mechanically stuck and unable to be pulled out. The VR scene displays the glove tearing, the hand becoming red, swollen, or bleeding, while simultaneously playing sounds of bone compression or a harsh, grinding sound of the machine jamming.

[0057] Differentiated training: The system adjusts the airbag pressure according to the student's grip strength—the greater the grip strength, the higher the feedback pressure, reinforcing the awareness that "wearing gloves is prohibited when operating rotating equipment".

[0058] In another specific embodiment, the linkage of multiple scenarios (comprehensive emergencies during tunnel construction): Scenario design: A composite accident that integrates the risks of being struck by an object, being electrocuted, and falling.

[0059] Implementation process: The VR scene shows a trainee setting up a cable tray in a tunnel. Suddenly, the overhead basket tilts, the tool bag falls, and the object striking mechanism 6 is triggered. When a trainee touches a damaged cable while trying to avoid it, the PTC element in the side module 2 heats up to 40°C, simulating the sensation of a leakage current. In the chaos, the scaffolding collapsed, causing the bottom module 3 to sink rapidly by 300mm, and the intelligent suspension mechanism 8 to lock the safety rope. The training management and control module records the entire process: evacuation reaction time (0.8s), evacuation posture after electric shock (whether it is a correct single-leg hop), and peak impact force during the fall (380N), generating a three-dimensional assessment report that includes physiological indicators, operational standardization, and emergency response speed.

[0060] In another specific embodiment, containerized deployment (field operation scenario): Mobile deployment details: The entire system is integrated into a 20-foot standard container. The main frame 7 of the top module 1 is rigidly connected to the top beam of the container, and the bottom module 3 is fixed to the bottom of the container through shock-absorbing pads. Upon arrival at the wind power project site, a power-on self-test is completed within 30 minutes: the intelligent suspension mechanism 8 automatically verifies the wear of the safety rope, and the insulation resistance test value of the step voltage simulation mechanism is ≥100MΩ; It can complete 8 batches of training per day, with 6 people per batch. The training data is uploaded to the enterprise safety management platform in real time via 4G module and linked to the personnel's electronic files.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A multi-dimensional comprehensive safety training system based on VR scene linkage, characterized in that, include: VR interactive hardware module, used to provide multi-dimensional haptic feedback in physical space in conjunction with VR scene, forms a three-dimensional interactive structure in space, including top module (1), side module (2) and bottom module (3). The training management and control module is used to control the linkage between the VR interactive hardware module and the VR scene, and to perform information management of the training process and resources. The top-level module (1) includes a main frame (7), an intelligent suspension mechanism (8) installed on the main frame (7), and an object striking mechanism (6). The lateral module (2) includes at least one handrail structure (4), which integrates a mechanical entanglement injury simulation mechanism and / or an electrical hazard simulation mechanism. The bottom module (3) includes a top layer (9), a middle layer (10) and a bottom layer (11) arranged from top to bottom; the top layer (9) integrates a step voltage simulation mechanism, and the bottom layer (11) integrates a lifting mechanism for simulating weightlessness.

2. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 1, characterized in that, The intelligent suspension mechanism (8) includes a torque motor, a safety rope connected to the torque motor, and a tension sensor set on the safety rope; the end of the safety rope is provided with a safety belt hook for personnel to wear.

3. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 2, characterized in that, The object striking mechanism (6) includes a stepper motor, a slider driven by the stepper motor to rise and fall, an explosion-proof plate (5) located above the head of a person, and a first pressure sensor for monitoring the impact force; the stepper motor drives the slider to fall and strike the explosion-proof plate (5).

4. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 3, characterized in that, The action logic of the top-level module (1) includes: When the VR scene simulates a fall from a height, the torque motor instantly reverses and applies damping or locks, tightening the safety rope. At the same time, the tension sensor synchronously monitors the impact force of the human body at the moment of fall. When the VR scene simulates a falling object impact, the stepper motor drives the slider to rush down at high speed and hit the explosion-proof plate (5). At the same time, the first pressure sensor monitors the impact force synchronously.

5. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 1, characterized in that, The mechanical entanglement injury simulation mechanism includes an airbag-type hand compression mechanism for applying pressure to the hand through the instantaneous expansion of the airbag; the electrical hazard simulation mechanism includes a thermosensitive electrical feedback unit, which employs a PTC heating element and / or a thermosensitive color-changing coating.

6. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 1, characterized in that, The step voltage simulation mechanism includes multiple independent metal squares, a second pressure sensor disposed below each metal square, a high-frequency oscillator, and a micro-electric stimulator, with insulating material filling the spaces between the metal squares.

7. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 6, characterized in that, The lifting mechanism used to simulate weightlessness is a scissor lift mechanism driven by a hydraulic pump station; an electromagnetic pressure relief valve is connected in parallel in the hydraulic circuit of the hydraulic pump station, and a hydraulic buffer is provided below the scissor lift mechanism; the intermediate layer (10) is an insulating and vibration-damping layer used to isolate the current leakage of the surface layer (9) and the mechanical vibration of the bottom layer (11).

8. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 7, characterized in that, The action logic of the underlying module (3) includes: when the VR scene simulates a high-altitude fall, the electromagnetic pressure relief valve opens instantly, the scissor lift mechanism sinks rapidly, and is then caught by the hydraulic buffer; When the VR scene simulates step voltage electric shock, the second pressure sensor in the surface layer (9) monitors the distance between the person's feet in real time. When it is determined that the distance between the two feet and the metal square exceeds the safety threshold, the high-frequency oscillator and micro-electric stimulator under the corresponding metal square are activated to simulate the numbness of the legs.

9. The multi-dimensional comprehensive safety training system based on VR scene linkage according to claim 1, characterized in that, The training management and control module is configured as follows: Receive trigger signals from the VR scene; Based on the trigger signal, a corresponding control command is generated and sent to the corresponding mechanism in the VR interaction hardware module; Receive and record data fed back from various sensors in the VR interaction hardware module.

10. A multi-dimensional comprehensive safety training method based on VR scene linkage, characterized in that, Includes the following steps: Step 1: Load the VR training scene through the training management control module; Step 2: According to the scene instructions, control the intelligent suspension mechanism (8) or object impact mechanism (6) of the top module (1) to act, or control the mechanical entanglement injury simulation mechanism and / or electrical hazard simulation mechanism of the side module (2) to act, or control the step voltage simulation mechanism or lifting mechanism of the bottom module (3) to act. Step 3: Collect user response data and conduct training evaluation.

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