Indoor fire-fighting emergency simulation system based on VR technology

Abstract

The application relates to an indoor fire-fighting emergency simulation system based on VR technology, and relates to the field of VR application technology, which comprises a VR control handle and a wearable VR display device used for displaying a virtual picture; further comprises an experience room, the experience room is internally provided with a mounting box, the mounting box is located at the position of a virtual flame displayed by the wearable VR display device; the mounting box is internally provided with a heating piece used for heating the internal gas, the mounting box is connected with an air inlet pipe, the air inlet pipe is connected with a positive pressure source; the mounting box is throughly provided with an air outlet hole used for blowing air to an experimenter. The heated air blown to the experimenter can simulate the high-temperature gas generated when the flame burns, and the simulated flame displayed by the wearable VR display device is beneficial to improving the real experience of the experimenter on the fire.

Description

TECHNICAL FIELD

[0001] The application relates to the VR application technical field, in particular to an indoor fire-fighting emergency simulation system based on VR technology. BACKGROUND

[0002] VR technology, namely virtual reality technology, is a technology for generating a virtual world for participants to experience by using a computer. With the continuous development of VR technology, it is widely used in fire-fighting simulation drills to reduce the consumption of fire-fighting equipment and the risk of being burned by personnel.

[0003] A Chinese patent with the publication number CN214068021U discloses a fire-fighting VR experience device, which comprises an experience cabin body, a placing main body is arranged in the experience cabin body, the placing main body is provided with an extension guide cavity, and VR glasses are placed in the extension guide cavity. When in use, an experimenter enters the experience cabin body and wears the VR glasses; when a simulated fire picture is transmitted to the VR glasses, the experimenter can see different virtual fire-fighting products at different positions in the experience cabin body in the simulated virtual scene; and the experimenter can use different virtual fire-fighting products to extinguish fire according to the prompt, so as to achieve the effect of fire-fighting simulation.

[0004] According to the related technology in the above, the inventors believe that in the environment of fire-fighting simulation, the VR technology can realize the simulation of the fire picture, and the sound simulation of the burning of the object can also be realized through the loudspeaker; however, the simulation of the temperature of the flame is difficult to realize, so that the experimenter has a poor experience of the real feeling of the fire, and thus needs to be improved. SUMMARY

[0005] The application aims to provide an indoor fire-fighting emergency simulation system based on VR technology to improve the experience of the real feeling of the fire of the experimenter.

[0006] The indoor fire-fighting emergency simulation system based on VR technology provided by the application adopts the following technical scheme:

[0007] An indoor fire-fighting emergency simulation system based on VR technology comprises a VR control handle and a wearable VR display device for displaying a virtual picture; further comprises an experience room, the experience room is provided with a mounting box, the mounting box is located at the position of the virtual flame displayed by the wearable VR display device; the mounting box is provided with a heating piece for heating the gas inside the mounting box, the mounting box is connected with an air inlet pipe, the air inlet pipe is connected with a positive pressure source; and the mounting box is provided with an air outlet hole for blowing air to the experimenter.

[0008] By adopting the technical scheme, when the experimenter wears the wearable VR display device to enter the experience room and moves to the position close to the installation box, the positive pressure source inputs the gas into the installation box through the air inlet pipe, and the gas entering the installation box is blown to the experimenter by the air outlet hole after being heated by the heating piece. The heated gas can simulate the high-temperature gas generated when the flame burns, and cooperate with the simulated flame displayed by the wearable VR display device to improve the experimenter's feeling of the flame at close range, thereby facilitating the experimenter's experience of the real feeling of the fire. The experimenter can select the fire extinguishing device in the picture displayed by the wearable VR display device to extinguish the fire through the VR control handle; during the process of extinguishing the fire by the experimenter, the heating power of the heating piece and the air supply power of the positive pressure source are reduced until the heating piece and the positive pressure source are turned off, so that the experimenter can obtain the tactile experience after the flame is extinguished.

[0009] Optionally, a plurality of air outlet holes are arranged in sequence along the up-down direction; the installation box is provided with a wind baffle for closing each air outlet hole at the position of each air outlet hole; and the installation box is provided with a driving assembly for driving all the wind baffles to move one by one from bottom to top to open the corresponding air outlet holes one by one.

[0010] By adopting the technical scheme, the driving assembly can make all the wind baffles move one by one from bottom to top, so that all the air outlet holes are opened one by one from bottom to top, thereby making the position of the hot air blown to the experimenter gradually extend upwards to simulate the effect of the flame increasing and spreading upwards.

[0011] Optionally, the wind baffles are connected to the installation box in a sliding manner along the width direction of the installation box; the driving assembly comprises a driving rod, a follower corresponding to each wind baffle, and a driving piece for driving the driving rod to move up and down; one end of the driving rod is arranged in a downward inclination; the follower comprises an abutting block connected to the corresponding wind baffle and a butt block; and a gap is arranged between the abutting block and the butt block for the upper end of the driving rod to pass through and be inserted.

[0012] By adopting the technical scheme, when the driving piece drives the driving rod to move from bottom to top, the upper end of the driving rod is inserted through and arranged in the gap between the abutting block and the butt block; when the driving rod continues to move upwards, the upper surface of the driving rod abuts against the abutting block to drive the abutting block to slide along the upper surface of the driving rod, thereby driving the wind baffle to move to open the corresponding air outlet hole; when the driving rod is separated from the corresponding abutting block, the abutting block stops moving to keep the corresponding air outlet hole in an open state. Similarly, when the driving rod moves downwards, the lower end of the driving rod can be inserted through and arranged in the gap between the abutting block and the butt block, and the lower surface of the driving rod can abut against the butt block to drive the butt block to move, thereby driving the wind baffle to reset and move to close the corresponding air outlet hole.

[0013] Optionally, the upper end of the abutting block and the lower end of the butt block are arranged in an inclination and provided with a guide surface for abutting against the driving rod.

[0014] By adopting the technical scheme, when the end wall of the driving rod abuts against the guide surface, the end wall of the driving rod can slide along the guide surface to drive the abutting block or the butt joint block to move, so that the interval between the driving rod, the abutting block and the butt joint block is aligned, thereby facilitating the insertion of the driving rod into the interval between the abutting block and the butt joint block.

[0015] Optionally, the wind deflector is rotationally connected with the mounting box; the driving assembly comprises a moving rack, a connecting gear corresponding to each wind deflector, and a moving piece for driving the moving rack to move up and down; the connecting gear is connected with the rotating shaft of the corresponding wind deflector; the moving rack can sequentially engage with all the connecting gears.

[0016] By adopting the technical scheme, during the movement of the moving piece driving the moving rack, the moving rack can sequentially engage with all the connecting gears, that is, when the moving rack disengages from the connecting gear, the moving rack can engage with another adjacent connecting gear to drive the corresponding connecting gear to rotate. When the moving rack engages with one of the connecting gears, the moving rack drives the corresponding connecting gear to rotate to drive the corresponding wind deflector to rotate, so that the corresponding air outlet is opened. Similarly, when the moving gear moves in the reverse direction, the air outlet can be sequentially closed.

[0017] Optionally, the wind deflector is provided with a magnetic piece, and the mounting box is provided with a suction accessory for magnetically attracting the magnetic piece.

[0018] By adopting the technical scheme, the magnetic piece can be magnetically attracted to the suction accessory to fix the wind deflector and reduce the possibility that the closed air outlet is opened or the opened air outlet is closed due to the wind deflector being blown by the flowing gas.

[0019] Optionally, the lower end of the mounting box is provided with a light sensing piece, and the VR control handle is provided with a light emitting piece for irradiating the light sensing piece; the light sensing piece, the heating piece and the positive pressure source are commonly electrically connected with a controller.

[0020] By adopting the technical scheme, when the handle of the user is aimed at the lower end of the installation box, the light sensing piece can receive the light emitted by the light emitting piece and send an induction signal to the controller; the controller reduces the heating power of the heating piece and the air supply power of the positive pressure source according to the induction signal sent by the light sensing piece, so as to reduce the temperature and the size of the wind of the gas blown to the user, so as to simulate the situation that the flame is reduced until the flame is extinguished, thereby facilitating the synchronization of the real feeling of the user with the virtual picture and further improving the experience. The light sensing piece is arranged at the lower end of the installation box, so that the position of the light sensing piece corresponds to the root position of the flame in the virtual picture; when the user uses the fire extinguishing device in the virtual picture to extinguish the fire, the operation of aiming the handle at the light sensing piece corresponds to the fire extinguishing logic of emitting fire extinguishing agent to the root of the flame, which is beneficial to improve the authenticity of fire extinguishing.

[0021] Optionally, the light sensing pieces are arranged in a scattered manner.

[0022] By adopting the technical scheme, when any light sensing piece senses the light emitted by the light emitting piece during simulation of fire extinguishing, the controller can control the operation of the heating piece and the positive pressure source, thereby facilitating the reduction of the difficulty of simulation of fire extinguishing.

[0023] Optionally, an installation groove is arranged on the inner side wall of the experience room, and the installation box is embedded in the installation groove.

[0024] By adopting the technical scheme, it is beneficial to reduce obstacles in the experience room, thereby reducing the possibility of tripping and injury of the user.

[0025] Optionally, a protective soft net for covering the installation groove is arranged on the inner side wall of the experience room.

[0026] By adopting the technical scheme, the protective soft net can separate the installation box or the air outlet hole from the user, so as to further reduce the risk of injury of the user caused by contact between the user and the installation box or the air outlet hole.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The heated gas can simulate the high-temperature gas generated when the flame burns, and cooperate with the simulated flame displayed by the wearable VR display device, so as to improve the user's feeling of the close-range flame, thereby facilitating the user's experience of the real feeling of the fire;

[0029] 2. The wind shield cooperates with the driving assembly to open all the air outlet holes from bottom to top one by one, so as to gradually extend the position of the hot air blown to the user upwards, so as to simulate the effect of increasing and spreading upwards of the flame;

[0030] 3. The light emitting member and the light sensing member cooperate with each other to simulate the operation of spraying fire extinguishing agent to the root of the flame, which is conducive to further improving the sense of reality of the simulation experience. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is an embodiment 1 overall structure schematic diagram of a VR technology-based indoor fire-fighting emergency simulation system.

[0032] Figure 2 is Figure 1 A part enlarged view in the figure.

[0033] Figure 3 is a sectional view along the B-B line in Figure 1 .

[0034] Figure 4 is a schematic diagram for showing the structure of the driving assembly in embodiment 1 of the application.

[0035] Figure 5 is Figure 4 C part enlarged view in the figure.

[0036] Figure 6 is a schematic diagram for showing the structure of the driving assembly in embodiment 2 of the application.

[0037] Figure 7 is Figure 6 D part enlarged view in the figure.

[0038] In the figure, 1, VR control handle; 2, wearable VR display device; 3, experience room; 31, mounting groove; 32, protective soft net; 4, mounting box; 41, heating member; 42, air inlet pipe; 421, positive pressure source; 43, air outlet hole; 44, light sensing member; 45, wind shield; 451, magnetic member; 46, support plate; 461, support groove; 47, suction accessory; 5, driving assembly; 51, driving rod; 52, driven member; 521, abutting block; 5211, guide surface; 522, butt joint block; 53, driving member; 531, slide rail; 532, slide seat; 533, connecting rod; 534, driving screw; 535, driving motor; 54, moving rack; 55, connecting gear; 56, moving member. DETAILED DESCRIPTION

[0039] The application will be further described in detail below in combination with the accompanying Figure 1 - the accompanying Figure 7 .

[0040] Embodiment 1

[0041] A VR technology-based indoor fire-fighting emergency simulation system, with reference to Figure 1 and Figure 2, including a VR control handle 1, a wearable VR display device 2 and an experience room 3. The wearable VR display device 2 includes VR glasses; the experimenter can watch the virtual fire picture through the wearable VR display device 2. The VR control handle 1 is connected with the wearable VR display device 2 through a data line, so that the experimenter can select the simulated product in the picture displayed by the wearable VR display device 2.

[0042] With reference to Figure 2 and Figure 3 , the inner side wall of the experience room 3 is provided with a mounting groove 31, and the position of the mounting groove 31 coincides with the position of the virtual flame displayed in the wearable VR display device 2. A mounting box 4 is fixedly installed in the mounting groove 31, and the inside of the mounting box 4 is provided with a heating element 41. The heating element 41 includes an electric heater, and the electric heater is provided with a heating wire. The heating element 41 is fixedly connected with the inner side wall of the mounting box 4 through bolts. The inner side wall of the side of the mounting box 4 close to the bottom wall of the mounting groove 31 is provided with an air inlet pipe 42 penetratingly arranged, and the air inlet pipe 42 is fixedly welded with the outer side wall of the mounting box 4. The end of the air inlet pipe 42 away from the mounting box 4 penetrates through the bottom wall of the mounting groove 31 and extends to the outside of the experience room 3.

[0043] With reference to Figure 3 , a positive pressure source 421 is fixedly installed outside the experience room 3, and the positive pressure source 421 includes a blower. The air outlet end of the positive pressure source 421 is connected with the air inlet pipe 42. The outer side wall of the side of the mounting box 4 away from the air inlet pipe 42 is provided with an air outlet hole 43 penetratingly arranged, and a plurality of air outlet holes 43 are sequentially and spacedly arranged along the up-down direction. After the positive pressure source 421 inputs gas into the air inlet pipe 42, the gas moves to the inside of the mounting box 4 through the air inlet pipe 42; the heating element 41 heats the gas, and the heated gas flows out of the air outlet hole 43 and contacts with the experimenter, so as to simulate the high-temperature gas generated when the object burns.

[0044] With reference to Figure 2 and Figure 3 , the inner side wall of the experience room 3 is provided with a protective soft net 32, and the protective soft net 32 includes a cloth net woven and sewn by cloth strips. The protective soft net 32 is arranged at the position of the slot of the mounting groove 31, so as to cover the mounting groove 31, thereby covering the mounting box 4 and the air outlet hole 43, and reducing the risk of collision between the experimenter and the mounting box 4. In another embodiment, the protective soft net 32 can also be a rope net woven by soft ropes or a plastic net plate made of plastic or a net-like structure made of other soft materials.

[0045] With reference to Figure 2The outer side wall of the installation box 4 provided with the air outlet hole 43 is provided with light sensing pieces 44, the light sensing pieces 44 are dispersedly arranged, and all the light sensing pieces 44 are located at the lower end of the installation box 4. The light sensing piece 44 comprises a photosensitive resistor; the light sensing piece 44 is connected with a controller (not shown in the figure) through a wire, the controller comprises a PLC controller; the positive pressure source 421 and the heating piece 41 are both connected with the controller through wires.

[0046] With reference to Figure 2 and Figure 3 , the end wall of one end of the VR control handle 1 is provided with a light emitting piece, the light emitting piece comprises a laser diode; the light emitting piece is welded with the circuit board in the VR control handle 1. When the experimenter aims the VR control handle 1 at the lower end position of the installation box 4 and turns on the light emitting piece, the light emitted by the light emitting piece irradiates the light sensing piece 44, and the controller can control the heating piece 41 and the positive pressure source 421 to reduce the heating power of the heating piece 41 and the air supply power of the positive pressure source 421, so as to realize the simulation of reducing and extinguishing the flame. In another embodiment, the light sensing piece 44 can also be a photoelectric receiver or other sensor capable of receiving light and emitting an induction signal. In another embodiment, the light emitting piece can also be an LED lamp or other electrical element capable of emitting light.

[0047] With reference to Figure 4 and Figure 5 , the installation box 4 is provided with a baffle 45 at the position of each air outlet hole 43, the baffle 45 is located at the inner side wall of the installation box 4, and the baffle 45 covers the corresponding air outlet hole 43. The installation box 4 is welded and fixed with a support plate 46 at the upper and lower sides of each baffle 45, the support plate 46 is provided with a support groove 461 penetrating along the width direction of the installation box 4; each side of the baffle 45 is in sliding connection with the inner side wall of the support groove 461 at the corresponding position. The installation box 4 is provided with a driving assembly 5 for driving the baffle 45 to slide to open or close the air outlet hole 43.

[0048] With reference to Figure 4 , the driving assembly 5 comprises a driving rod 51, a plurality of driven pieces 52 and a driving piece 53. The driven piece 52 corresponds to the baffle 45 one by one; the driven piece 52 comprises an abutting block 521 and a butt joint block 522, and the abutting block 521 and the butt joint block 522 are both welded and fixed with the corresponding baffle 45. In this embodiment, the abutting block 521 and the butt joint block 522 are both located at one end of the baffle 45 along the width direction of the installation box 4, and the abutting block 521 is located at the side of the butt joint block 522 away from the air outlet hole 43.

[0049] With reference to Figure 4The driving member 53 comprises a sliding rail 531 fixedly connected with the inner side wall of the mounting box 4 by a bolt, a sliding seat 532 slidably connected with the sliding rail 531, a connecting rod 533 fixedly welded with the sliding seat 532, a driving screw 534 penetrating through the sliding seat 532 and threadedly connected with the sliding seat 532, and a driving motor 535. The length direction of the driving screw 534 and the length direction of the sliding rail 531 are both arranged along the upward and downward direction, and both ends of the driving screw 534 are rotatably connected with the inner side wall of the mounting box 4 through bearings. The driving motor 535 is located at one end of the driving screw 534, and the driving motor 535 is fixedly installed on the inner side wall of the mounting box 4. The output shaft of the driving motor 535 is connected with the driving screw 534 to drive the driving screw 534 to rotate, thereby driving the sliding seat 532 to move upward and downward.

[0050] With reference to Figure 4 and Figure 5 The driving rod 51 is fixedly welded with the connecting rod 533, and the length direction of the driving rod 51 is arranged along the sliding direction of the wind deflector 45. An end of the driving rod 51 close to the air outlet hole 43 is arranged upwardly inclined, and the upper end of the driving rod 51 penetrates and is arranged in the interval between the abutting block 521 and the abutting block 522.

[0051] With reference to Figure 4 and Figure 5 When the connecting rod 533 drives the driving rod 51 to move upwardly, the upper surface of the driving rod 51 abuts against the lower end wall of the abutting block 521 to drive the abutting block 521 to move away from the abutting block 522, and the wind deflector 45 moves correspondingly to open the corresponding air outlet hole 43. When the lower end of the driving rod 51 is disengaged from the abutting block 521, the upper end of the abutting block 521 can be inserted into the interval between the abutting block 521 and the abutting block 522 of the adjacent group to drive the corresponding wind deflector 45 to move. As described above, in the process of the driving rod 51 moving upwardly, all the wind deflectors 45 located above the driving rod 51 move in sequence to open all the corresponding air outlet holes 43 in sequence, so that the position of the high-temperature gas blown to the experimenter is gradually extended to simulate the effect that the flame increases and spreads upwardly.

[0052] With reference to Figure 4 and Figure 5 When the driving rod 51 moves downwardly, the lower surface of the driving rod 51 can abut against the upper end wall of the abutting block 522 to drive the wind deflector 45 to move toward the corresponding air outlet hole 43 to close the air outlet hole 43, thereby achieving the effect of simulating the flame to be extinguished. In another embodiment, the driving member 53 can also be a pneumatic cylinder. The driving member 53 can also be a structure combined with a synchronous belt and a synchronous pulley, and the driving rod 51 is connected with the synchronous belt. The driving member 53 can also be other structural members capable of driving the driving rod 51 to move upwardly and downwardly.

[0053] With reference to Figure 4 and Figure 5The end wall of the windshield 45 at both ends of the sliding direction of the windshield 45 is adhered and fixed with a magnetic member 451, and the inner side wall of the position where the installation box 4 is located on the side away from the windshield 45 is adhered and fixed with a suction member 47; the magnetic member 451 comprises a magnet, and the suction member 47 comprises an iron block. During the upward movement of the driving rod 51, when the abutting block 521 is separated from the driving rod 51, the magnetic member 451 located at the position close to the abutting block 521 is in contact with and fixed with the suction member 47 on the corresponding side, so as to fix the windshield 45, so that the air outlet hole 43 remains in an open state. During the downward movement of the driving rod 51, when the abutting block 522 is separated from the driving rod 51, the magnetic member 451 located at the position away from the abutting block 521 is in contact with the suction member 47 on the corresponding side, so as to keep the air outlet hole 43 in a closed state.

[0054] With reference to Figure 4 and Figure 5 The upper end wall of the abutting block 521 and the lower end wall of the abutting block 522 are both inclinedly provided with a guide surface 5211, the guide surface 5211 can expand the opening of the interval between the abutting block 521 and the abutting block 522, so as to facilitate the insertion of the end of the driving rod 51 into the corresponding interval, thereby facilitating the mutual cooperation of the driving rod 51 with the abutting block 521 and the abutting block 522.

[0055] The implementation principle of the embodiment of the present application is:

[0056] The positive pressure source 421 inputs gas into the installation box 4 through the air inlet pipe 42, and the heating member 41 heats the gas flowing into the installation box 4; at the same time, the heated gas is blown out of the air outlet hole 43; after the experimenter wears the wearable VR display device 2 and holds the VR control handle 1 and walks into the experience room 3, the experimenter can watch the virtual fire picture through the wearable VR display device 2; when the experimenter moves to the position close to the flame of the virtual fire picture, that is, the experimenter moves to the position close to the installation box 4, the high-temperature gas blown out of the air outlet hole 43 contacts the experimenter, so as to simulate the high-temperature gas generated when the object burns, thereby facilitating the improvement of the experimenter's real experience of the fire.

[0057] Embodiment 2

[0058] The difference between the present embodiment and the embodiment 1 is:

[0059] With reference to Figure 6, the baffle 45 is rotatably connected with the inner side wall of the mounting box 4 through a rotating shaft; in the embodiment, each rotating shaft is located above the corresponding air outlet hole 43, and the axial direction of the rotating shaft is along the width direction of the mounting box 4. The magnetic member 451 is fixedly attached to the side wall of the end of the baffle 45 away from the rotating shaft; the number of the suction members 47 is one, and the suction member 47 is attached to the position above the corresponding air outlet hole 43; when the baffle 45 is rotated upward, the magnetic member 451 can be in contact with the suction member 47, so that the magnetic member 451 and the suction member 47 are magnetically attracted to each other, thereby fixing the baffle 45, so that the corresponding air outlet hole 43 remains in an open state. The driving assembly 5 comprises a moving rack 54, a plurality of connecting gears 55 and a moving member 56; the connecting gears 55 correspond to the baffles 45 one by one, each connecting gear 55 is keyed connected with the rotating shaft of the corresponding baffle 45, and all the connecting gears 55 are aligned with each other.

[0060] With reference to Figure 6 and Figure 7 , the moving rack 54 is located at the side of the connecting gears 55 close to the center of the mounting box 4, and the moving rack 54 is engaged with the connecting gear 55 located at the lowermost position. In the embodiment, the structure of the moving member 56 is the same as that of the driving member 53 in the embodiment 1; the moving rack 54 is welded with the connecting rod 533 of the moving member 56.

[0061] With reference to Figure 6 and Figure 7 , during the process that the connecting rod 533 drives the moving rack 54 to move upward, the connecting gear 55 located at the lowermost position is rotated to drive the corresponding baffle 45 to rotate upward; when the moving rack 54 is disengaged from the corresponding connecting gear 55, the magnetic member 451 is in contact with the corresponding suction member 47 to fix the corresponding baffle 45; when the moving rack 54 continues to move upward, the moving rack 54 can be engaged with another adjacent connecting gear 55 to rotate the corresponding baffle 45. As described above, during the process that the moving rack 54 moves upward, the moving rack 54 can be engaged with all the connecting gears 55 in turn to drive all the baffles 45 to rotate in turn, so that all the air outlet holes 43 are opened in turn. When the moving rack 54 moves downward, all the baffles 45 located below the moving rack 54 can be rotated downward in turn to close the corresponding air outlet holes 43 in turn.

[0062] The embodiments of the specific implementation are the preferred embodiments of the present application, but do not limit the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A VR technology-based indoor fire-fighting emergency simulation system, comprising a VR control handle (1) and a wearable VR display device (2) for displaying a virtual picture; characterized in that: Also include experience room (3), the installation box (4) is arranged in experience room (3), the installation box (4) is located in the position of virtual flame displayed by wearable VR display device (2);Heating piece (41) for heating the gas inside the installation box (4) is arranged in the installation box (4), the installation box (4) is connected with air inlet pipe (42), the air inlet pipe (42) is connected with positive pressure source (421);The installation box (4) is provided with air outlet hole (43) for blowing wind to the experimenter in the whole process; A plurality of air outlet holes (43) are sequentially arranged along the up-down direction;The installation box (4) is provided with wind baffle (45) for closing corresponding air outlet hole (43) at the position of each air outlet hole (43);The installation box (4) is provided with drive assembly (5) for driving all wind baffles (45) to move one by one from bottom to top to open corresponding air outlet hole (43) one by one; The wind baffle (45) is slidably connected with the installation box (4) along the width direction of the installation box (4);The drive assembly (5) includes drive rod (51), driven part (52) corresponding to wind baffle (45), drive part (53) for driving drive rod (51) to move up and down, one end of drive rod (51) is inclined downward;The driven part (52) includes abutting block (521) connected with corresponding wind baffle (45) and butt block (522), the abutting block (521) and the butt block (522) are provided with interval for the upper end of drive rod (51) to pass through.

2. The VR technology based indoor fire emergency simulation system as claimed in claim 1, wherein: The upper end of abutting block (521) and the lower end of butt block (522) are both inclined and provided with guide surface (5211) for abutting with drive rod (51).

3. The VR technology based indoor fire emergency simulation system as claimed in claim 1 wherein: The wind baffle (45) is rotatably connected with the installation box (4);The drive assembly (5) includes moving rack (54), connecting gear (55) corresponding to wind baffle (45), moving part (56) for driving moving rack (54) to move up and down;The connecting gear (55) is connected with the rotating shaft of corresponding wind baffle (45);The moving rack (54) can be engaged with all connecting gears (55) in turn.

4. The VR technology based indoor fire emergency simulation system as claimed in claim 1, wherein: The wind baffle (45) is provided with magnetic part (451), and the installation box (4) is provided with suction part (47) for being magnetically attracted with the magnetic part (451).

5. The VR technology based indoor fire emergency simulation system as claimed in claim 1, wherein: The lower end of the installation box (4) is provided with light sensing part (44), and the VR control handle (1) is provided with light emitting part for irradiating the light sensing part (44);The light sensing part (44), the heating piece (41) and the positive pressure source (421) are commonly electrically connected with the controller.

6. The VR technology based indoor fire emergency simulation system as claimed in claim 5, wherein: The light sensing part (44) is dispersedly provided with a plurality of light sensing parts.

7. The VR technology based indoor fire emergency simulation system as claimed in claim 1 wherein: The inner side wall of the experience room (3) is provided with mounting groove (31), and the installation box (4) is embedded in the mounting groove (31).

8. The VR technology based indoor fire emergency simulation system as claimed in claim 7, wherein: The inner side wall of the experience room (3) is provided with protective soft net (32) for covering mounting groove (31).

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