Modular historical event three-dimensional reconstruction demonstration device based on AR technology

Abstract

The invention discloses a modular historical event three-dimensional reconstruction demonstration device based on an AR technology, and relates to the technical field of AR equipment. A holographic projection assembly is fixedly installed on the top of an upper cover of the clamping shell in a clamped mode, a permanent magnet is driven to extrude an air bag through intermittent energy supply of a second coil, the air pressure of the air bag is dynamically adjusted and buffered in combination with airflow control of a movable plate / fixed plate, and the interaction effect can be improved while the wearing comfort and stability are improved; a multi-sensor fusion algorithm is combined with an interaction sensor and a signal source element, precise space positioning of the wearer action and an AR scene is achieved, dynamic role distribution of multi-person cooperation is supported, and real-time position synchronization and scene interaction are ensured; three display modes are supported, the multi-scene requirement from environment perception to full immersion is met, switching is fast, power consumption is low, and the AR demonstration system which is high in response speed, low in delay interaction and capable of achieving multi-user cooperation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of AR devices, and specifically to a modular three-dimensional reconstruction demonstration device for historical events based on AR technology. Background Art

[0002] VR technology, i.e., virtual reality technology, combines various scientific and technological fields such as computer graphics technology, computer simulation technology, sensor technology, and display technology. It creates a virtual information environment in a multi-dimensional information space, enabling users to have an immersive sense of presence and a perfect interaction ability with the environment, and is widely used in the aspect of effect display.

[0003] Existing AR systems rely on single-sensor positioning, are vulnerable to environmental interference, resulting in delays in user motion capture or positioning deviations, and lack a dynamic role assignment and real-time feedback mechanism for multi-person collaboration; traditional AR display technologies are difficult to balance real environment perception and virtual content immersion, usually only support a single mode, and cannot flexibly switch the virtual-real fusion ratio according to scene requirements; the tactile feedback of existing AR devices depends on a single vibration module, with a single feedback dimension, unable to simulate complex interaction scenarios, resulting in a weak sense of immersion for users. Summary of the Invention

[0004] Therefore, to address the above deficiencies, the present invention provides a modular three-dimensional reconstruction demonstration device for historical events based on AR technology.

[0005] The present invention is implemented as follows. A modular three-dimensional reconstruction demonstration device for historical events based on AR technology is constructed. The device includes a snap-on housing; a holographic projection component is snap-fitted and fixedly installed on the top of the upper cover of the snap-on housing; a head-mounted glasses, an interaction box, and a wearable vest are arranged inside the snap-on housing; an adaptation component is adhesively arranged on the side of the eye socket of the head-mounted glasses; a hinge frame is fixedly installed by plugging on the outside of the head-mounted glasses; an interaction sensor with a sensing function is fixedly installed at the end of the hinge frame by bolts; a lens structure is arranged inside the head-mounted glasses; the adaptation component includes a buffer airbag adhesively and fixedly installed on the side of the eye socket of the head-mounted glasses, and an electrode module for data acquisition is adhesively arranged on the inner side surface of the buffer airbag; an air port is arranged on the outer arc surface of the buffer airbag, and the air port is adhesively and fixedly connected to a first electric control component and a second electric control component respectively; three groups of second electric control components are equally spaced and distributed on the outer arc surface of the buffer airbag.

[0006] Preferably, the first electric control component includes a gas supply box adhesively and fixedly installed on the air port on the outer arc surface of the buffer airbag; a second coil is fixedly installed on the side wall of the gas supply box; a through hole is arranged on the side of the gas supply box, and the through hole is slidably connected to the side plug of the permanent magnet; an extrusion block is fixedly installed at the end of the side plug of the permanent magnet.

[0007] Preferably, an airbag is arranged on the right side inside the air supply box, and the airbag is in contact with the side surface of the extrusion block; connecting rods are inserted and fixed on the front and rear sides of the extrusion block, and the end of the connecting rod is inserted and fixed with a movable plate; a fixed plate is fixedly arranged in the middle side inside the air supply box.

[0008] Preferably, the second electronic control component includes a slow air box adhesively fixed and installed at the air port on the outer arc surface of the buffer airbag; a third coil is fixedly installed at the rear side inside the slow air box through bolts; through holes are arranged around the side surface of the third coil, and elastic members are slidably arranged in the through holes; the elastic members are fixedly arranged on the inner rear wall of the slow air box, and a piston plate is fixedly installed at the front end of the elastic members.

[0009] Preferably, a connecting interface with an electrical connection function is fixedly installed on the wearable vest; a protective fabric with a protective function is fixedly installed on the wearable vest; a hard rubber frame is fixedly installed inside the protective fabric; a spring with a reset function is inserted and fixed at the top side of the inner frame of the hard rubber frame; the spring is fixedly installed at the top side of the knocking plate; a first coil is fixedly installed at the bottom side of the inner frame of the hard rubber frame through bolts; a signal source component is fixedly installed on the side surface of the first coil housing.

[0010] Preferably, the lens structure includes an opening and closing member rotatably arranged at the outermost side of the inner hole of the head-mounted glasses; the opening and closing member is fixedly installed on the side surface of the mounting seat through bolts, and the mounting seat is snap-fitted and fixedly installed at the inner hole of the head-mounted glasses; the mounting seat is threadedly installed on the side surface of the limiting sleeve; a control electric box is fixedly installed on the side surface of the limiting sleeve through bolts; a protective gasket is press-fitted and fixed inside the limiting sleeve, and the protective gasket is fixedly arranged on both sides of the electrochromic glass; the electrochromic glass is connected to the control electric box through a cable; a contact lens is press-fitted and fixed on the side surface of the limiting sleeve.

[0011] Preferably, the opening and closing member includes a fixed disk fixedly installed on the side surface of the mounting seat through bolts; a rotating disk with a driving function is rotatably arranged on the side surface of the fixed disk; a limiting chute is arranged on the side surface of the rotating disk, and a convex block is slidably arranged inside the limiting chute; the convex block is inserted and arranged on the side surface of the moving blade, and the moving blade is slidably arranged in the groove between the fixed disk and the rotating disk.

[0012] Preferably, the interaction box is fixedly installed on the strap of the head-mounted glasses, and a front-view camera with data acquisition function is fixedly installed on the side surface of the interaction box through bolts; an eye movement capture camera with data acquisition function is fixedly installed inside the head-mounted glasses.

[0013] Preferably, the interaction box comprises a lightweight battery pack arranged inside, a control panel fixedly installed inside the interaction box, and a cable wound and arranged inside the interaction box; a glass lens is integrally arranged between the lens structure and the outer lens of the head-mounted glasses, and the glass lens enables light to pass through the three grating areas of the surface relief grating lens along the designed route.

[0014] A usage method of a modular three-dimensional reconstruction demonstration device for historical events based on AR technology includes the following steps:

[0015] Step 1: Wear and adjust; after wearing the head-mounted glasses and the wearable vest on the user, here the interaction box realizes the air pressure supply for the buffer airbag through the first electronic control component to achieve the wearing effect of the head-mounted glasses, and then manually adjust the spatial positions of the hinge frame and the interaction sensor, so that the interaction sensor can realize signal interaction with the signal source component;

[0016] Step 2: AR demonstration; conduct a wired connection through the cable of the interaction box and the articulated interface, and then conduct the demonstration process through the head-mounted glasses and the wearable vest;

[0017] Step 3: Interaction feedback; through the second electronic control component, during the demonstration process, the head-mounted glasses will perform a micro-vibration action at the position of the user's eyes to enhance the interaction effect of the demonstration; then, by adjusting the switching of the three display modes of the lens structure, the full-lens display mode, the AR display mode, and the VR display mode are respectively realized, thereby realizing different demonstration modes in different situations to improve the demonstration effect; then, the distributed rigid rubber frame formed on the wearable vest vibrates slightly in combination with the demonstration content, thereby improving the high interaction actions provided by the wearable vest for the user during the demonstration. At the same time, combined with the signal interaction of the interaction sensor, based on the working mechanism of the dynamic role assignment algorithm, real-time spatial feedback of multi-person collaboration can be realized during the demonstration action.

[0018] The present invention has the following advantages: The present invention provides a modular three-dimensional reconstruction demonstration device for historical events based on AR technology through improvement. Compared with the same type of devices, it has the following improvements:

[0019] The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to the present invention drives a permanent magnet to extrude an airbag through intermittent energy supply of a second coil, combines the air flow control of a movable plate / fixed plate, dynamically adjusts the air pressure of the buffer airbag, improves the wearing comfort and stability while also enhancing the interaction effect, adopts a multi-sensor fusion algorithm combined with an interaction sensor and a signal source component to achieve precise spatial positioning of the wearer's actions and the AR scene, supports dynamic role allocation for multi-person collaboration, ensures real-time position synchronization and scene interaction, combines electrochromic glass with a mechanical opening and closing structure, supports three display modes to meet the multi-scene requirements from environmental perception to full immersion, and has fast switching and low power consumption, realizing an AR demonstration system with high response speed, low-latency interaction, and multi-user collaboration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a schematic structural diagram of the head-mounted glasses, wearable vest and interaction sensor of the present invention;

[0022] Figure 3 is of the present invention Figure 2 enlarged structural schematic diagram of part A in;

[0023] Figure 4 is a schematic cross-sectional structure diagram of the first electronic control component of the present invention;

[0024] Figure 5 is a schematic cross-sectional structure diagram of the second electronic control component of the present invention;

[0025] Figure 6 is a schematic exploded structure diagram of the lens structure of the present invention;

[0026] Figure 7 is a schematic front view structure diagram of the side of the opening and closing member of the present invention;

[0027] Figure 8 is a schematic structural diagram of the wearable vest of the present invention;

[0028] Figure 9 is a schematic structural diagram of the hard rubber frame and spring of the present invention.

[0029] Wherein: snap-fit housing - 1, holographic projection component - 2, head-mounted glasses - 3, interaction box - 4, wearable vest - 5, adaptation component - 6, articulated frame - 7, interaction sensor - 8, lens structure - 9, articulated interface - 51, protective fabric - 52, hard rubber frame - 53, spring - 54, percussion plate - 55, first coil - 56, signal source element - 57, buffer airbag - 61, first electronic control component - 62, second electronic control component - 63, air supply box - 621, second coil - 622, permanent magnet - 623, extrusion block - 624, airbag - 625, connecting rod - 626, movable plate - 627, fixed plate - 628, air buffer box - 631, third coil - 632, elastic member - 633, piston plate - 634, opening and closing member - 91, mounting seat - 92, limit sleeve - 93, power control box - 94, protective washer - 95, electrochromic glass - 96, contact lens - 97, fixed disk - 911, rotating disk - 912, sliding groove - 913, convex block - 914, movable blade - 915. Detailed implementation mode

[0030] The following is combined with the attached Figures 1 to 9 The principles and features of the present invention will be described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0033] Embodiment 1:

[0034] Please refer to Figures 1 to 9 For a three-dimensional reconstruction demonstration device of modular historical events based on AR technology according to the present invention, it includes a snap-on housing 1; a holographic projection component 2 is snap-fitted and fixedly installed on the top cover of the snap-on housing 1; characterized in that: a head-mounted glasses 3, an interaction box 4 and a wearable vest 5 are arranged inside the snap-on housing 1; an adaptation component 6 is adhesively arranged on the orbital side of the head-mounted glasses 3; a hinge frame 7 is inserted and fixedly installed on the outside of the head-mounted glasses 3; an interaction sensor 8 with a sensing function is fixedly installed at the end of the hinge frame 7 through bolts; a lens structure 9 is arranged inside the head-mounted glasses 3;

[0035] The adaptation component 6 includes a buffer airbag 61 adhesively and fixedly installed on the orbital side of the head-mounted glasses 3, and an electrode module for data acquisition is adhesively arranged on the inner side surface of the buffer airbag 61; air ports are arranged on the outer arc surface of the buffer airbag 61, and the air ports are adhesively and fixedly connected to a first electric control component 62 and a second electric control component 63 respectively; there are three groups of second electric control components 63 equally distributed at equal intervals on the outer arc surface of the buffer airbag 61.

[0036] The first electric control component 62 includes a gas supply box 621 adhesively and fixedly installed on the air port of the outer arc surface of the buffer airbag 61; a second coil 622 is fixedly installed on the side wall of the gas supply box 621; a through hole is arranged on the side of the gas supply box 621, and the side insertion rod of a permanent magnet 623 is slidably connected to the through hole; an extrusion block 624 is fixedly installed at the end of the side insertion rod of the permanent magnet 623.

[0037] A gasbag 625 is arranged on the right side inside the gas supply box 621, and the gasbag 625 is in contact with the side surface of the extrusion block 624; connecting rods 626 are inserted and fixed on the front and rear sides of the extrusion block 624, and a movable plate 627 is inserted and fixed at the end of the connecting rod 626; a fixed plate 628 is fixedly arranged in the middle side inside the gas supply box 621.

[0038] The second electric control component 63 includes a slow air box 631 adhesively and fixedly installed on the air port of the outer arc surface of the buffer airbag 61; a third coil 632 is fixedly installed on the rear side inside the slow air box 631 through bolts; through holes are arranged around the side of the third coil 632, and elastic members 633 are slidably arranged in the through holes; the elastic members 633 are fixedly arranged on the inner rear wall of the slow air box 631, and a piston plate 634 is fixedly installed at the front end of the elastic members 633.

[0039] The lens structure 9 includes an opening and closing member 91 rotatably arranged at the outermost side of the inner hole of the head-mounted glasses 3; the opening and closing member 91 is fixedly installed on the side of the mounting seat 92 through bolts, and the mounting seat 92 is snap-fitted and fixedly installed at the inner hole of the head-mounted glasses 3; the mounting seat 92 is threadedly installed on the side of the limiting sleeve 93; a power control box 94 is fixedly installed on the side of the limiting sleeve 93 through bolts; a protective washer 95 is press-fitted and fixed inside the limiting sleeve 93, and the protective washer 95 is fixedly arranged on both sides of the electrochromic glass 96. A special coating is provided inside the electrochromic glass 96, and the special coating is specifically composed of an organic material, a metal salt, and glass fibers. The organic material is composed of metal phthalocyanine compounds; the electrochromic glass 96 is connected to the power control box 94 through a cable; a contact lens 97 is press-fitted and fixed on the side of the limiting sleeve 93.

[0040] The opening and closing member 91 includes a fixed disk 911 fixedly installed on the side of the mounting seat 92 through bolts; a rotating disk 912 with a driving function is rotatably arranged on the side of the fixed disk 911; a limiting chute 913 is provided on the side of the rotating disk 912, and a convex block 914 is slidably arranged inside the chute 913; the convex block 914 is inserted into the side of the moving blade 915, and the moving blade 915 is slidably arranged in the slot between the fixed disk 911 and the rotating disk 912.

[0041] The interaction box 4 is fixedly installed on the strap of the head-mounted glasses 3, and a front-view camera with data acquisition function is fixedly installed on the side of the interaction box 4 through bolts; an eye movement capture camera with data acquisition function is fixedly installed inside the head-mounted glasses 3.

[0042] The interaction box 4 includes a lightweight battery pack arranged inside, a control panel fixedly installed inside the interaction box 4, and a cable wound inside the interaction box 4; a glass lens is integrally arranged between the lens structure 9 and the outer lens of the head-mounted glasses 3, and the glass lens enables light to pass through the three grating areas of the surface relief grating lens along the designed route.

[0043] Embodiment 2:

[0044] Please refer to Figures 1 to 9 , for a modular three-dimensional reconstruction demonstration device of historical events based on AR technology of the present invention. Compared with Embodiment 1, this embodiment further includes: a connecting interface 51 with an electrical connection function is fixedly installed on the wearable vest 5; a protective fabric 52 with a protective function is fixedly installed on the wearable vest 5; a hard rubber frame 53 is fixedly installed inside the protective fabric 52; a spring 54 with a reset function is inserted and fixed on the top side of the inner frame of the hard rubber frame 53; the spring 54 is fixedly installed on the top side of the percussion plate 55; a first coil 56 is fixedly installed on the bottom side of the inner frame of the hard rubber frame 53 through bolts; a signal source component 57 is fixedly installed on the side of the housing of the first coil 56.

[0045] The working principle of a three-dimensional reconstruction demonstration device for modular historical events based on AR technology described above is as follows:

[0046] First, when using this device, first place this device in the working area, and then connect the device to an external power supply to provide the power required for the device to work.

[0047] Second, the user first takes out the head-mounted glasses 3 and the wearable vest 5 from the snap-on housing 1, and wears the head-mounted glasses 3 and the wearable vest 5 on the user's body through the strap. Here, the interactive box 4 provides intermittent energy supply for the second coil 622, so that the second coil 622 intermittently generates a magnetic field, and the permanent magnet 623 is pushed to move reciprocally by the magnetic field factor. Here, the extrusion block 624 on the side of the permanent magnet 623 squeezes the airbag 625 to inflate the inside of the buffer airbag 61. When the extrusion block 624 moves reciprocally left and right, it drives the movable plate 627 and the fixed plate 628 to squeeze the air pipe of the buffer airbag 61, so as to ensure that the air pipe on the side of the airbag 625 remains unblocked when the airbag 625 is blowing air, and the air pipe on the side of the airbag 625 remains blocked when the airbag 625 is inhaling air, realizing the air pressure energy supply to the buffer airbag 61 and achieving the wearing effect of the head-mounted glasses 3.

[0048] Third, then manually adjust the spatial positions of the articulated frame 7 and the interactive sensor 8, so that the interactive sensor 8 can face the protective fabric 52 arranged on the surface of the wearable vest 5. Through the signal interaction between the interactive sensor 8 and the signal source component 57, the environmental compensation algorithm of multi-sensor fusion is adopted to realize the real-time feedback of the spatial position of the AR device to the demonstration interactive personnel. Then, it is wired-connected to the articulated interface 51 through the cable of the interactive box 4, and then the demonstration process is carried out through the head-mounted glasses 3 and the wearable vest 5.

[0049] Fourth, when the lens structure 9 in the head-mounted glasses 3 is in the active mode, the lens structure 9 switches among three display modes according to the on-site situation. The first display mode means that the unobstructed light of the real world is received by the pupil of the eyeball with the lens structure 9 placed in front of it. Specifically, the opening and closing member 91 remains in the open state, and at the same time, the control power box 94 does not supply power to the electrochromic glass 96, so that the unobstructed light of the real world passes through the electrochromic glass 96 and the contact lens 97 and is received by the pupil of the user. The second mode among the three display modes is the AR display mode. In this mode, the control power box 94 supplies power to the electrochromic glass 96, causing the special coating inside it to change color, so that the electrochromic glass 96 changes from a fully transparent state to a partially transparent state, and some rather than all of the light associated with the real world environment is blocked by one or more virtual elements. In this way, the pupil of the user can receive the light associated with the real world environment and the light associated with the virtual content, which produces the perception of virtual content combined in the real world environment. The third display mode among the three display modes is the full information display mode. In this display mode, by rotating the rotating disk 912, the rotating disk 912 is pushed to slide the convex block 914 and the sliding groove 913, and then the moving blade 915 is pushed to completely surround the through hole on the side of the fixed disk 911, realizing that all the light associated with the real world environment is blocked by one or more virtual elements. In this mode, the user can only receive the light associated with the virtual content and is prevented from receiving the light associated with the real world environment;

[0050] Fifth, during the demonstration process, by intermittently supplying energy to the first coil 56 and the third coil 632, when the first coil 56 is energized, the percussion plate 55 on its side is pushed to squeeze the spring 54 and collide with the hard rubber frame 53. Here, the distributed hard rubber frames 53 formed on the wearable vest 5 vibrate slightly in combination with the demonstration content, thereby improving the high interaction actions provided by the wearable vest 5 for the user during the demonstration. At the same time, combined with the signal interaction of the interaction sensor 8, it can be based on the working mechanism of the dynamic role assignment algorithm to achieve real-time spatial feedback of multi-person cooperation in the demonstration actions; during the energization process of the third coil 632, the third coil 632 is pushed to drive the piston plate 634 to squeeze the internal air pressure of the buffer airbag 61 to change slightly, and under the reset action of the elastic member 633, the reciprocating action of the piston plate 634 is realized. Furthermore, during the demonstration process, the head-mounted glasses 3 will perform a slight vibration action at the position of the user's eyes, strengthening the interaction effect of the demonstration.

[0051] The present invention provides an improved modular three-dimensional reconstruction demonstration device for historical events based on AR technology. By intermittently supplying energy to the second coil 622 to drive the permanent magnet to squeeze the airbag 625, combined with the air flow control of the movable plate / fixed plate, the air pressure of the buffer airbag 61 is dynamically adjusted, improving the wearing comfort and stability while also enhancing the interaction effect. The multi-sensor fusion algorithm is combined with the interaction sensor 8 and the signal source component 57 to achieve accurate spatial positioning of the wearer's actions and the AR scene, support dynamic role allocation for multi-person collaboration, ensure real-time position synchronization and scene interaction. The electrochromic glass 96 is combined with a mechanical opening and closing structure, supporting three display modes to meet the multi-scene requirements from environmental perception to full immersion, and the switching is fast and low-power consumption, realizing an AR demonstration system with high response speed, low-latency interaction, and multi-user collaboration.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional reconstruction demonstration device for modular historical events based on AR technology, comprising a snap-on housing (1); a holographic projection component (2) is snap-fitted and fixedly installed on the top of the upper cover of the snap-on housing (1); characterized in that: Inside the snap-on housing (1), there are a head-mounted glasses (3), an interaction box (4), and a wearable vest (5); an adaptation component (6) is adhesively provided on the orbital side of the head-mounted glasses (3); an articulated frame (7) is inserted and fixedly installed on the outer side of the head-mounted glasses (3); the end of the articulated frame (7) is fixedly installed with an interaction sensor (8) with a sensing function through a bolt; a lens structure (9) is provided inside the head-mounted glasses (3). The adaptation component (6) includes a buffer airbag (61) adhesively and fixedly installed on the orbital side of the head-mounted glasses (3). An electrode module for data collection is adhesively provided on the inner side surface of the buffer airbag (61); an air port is provided on the outer arc surface of the buffer airbag (61), and the air port is adhesively and fixedly connected to a first electric control component (62) and a second electric control component (63) respectively; there are three second electric control components (63) evenly distributed at equal intervals on the outer arc surface of the buffer airbag (61).

2. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 1, wherein: The first electric control component (62) includes a gas supply box (621) adhesively and fixedly installed on the air port of the outer arc surface of the buffer airbag (61); a second coil (622) is fixedly installed on the side wall of the gas supply box (621); a through hole is provided on the side of the gas supply box (621), and the side plug of the permanent magnet (623) is slidably connected to the through hole; a pressing block (624) is fixedly installed at the end of the side plug of the permanent magnet (623).

3. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 2, wherein: On the right side inside the gas supply box (621), there is an airbag (625), and the airbag (625) is in contact with the side surface of the pressing block (624); connecting rods (626) are inserted and fixedly installed on both the front and rear sides of the pressing block (624), and a movable plate (627) is inserted and fixedly installed at the end of the connecting rod (626); a fixing plate (628) is fixedly provided in the middle side inside the gas supply box (621).

4. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 3, characterized in that: The second electric control component (63) includes a slow air box (631) adhesively and fixedly installed on the air port of the outer arc surface of the buffer airbag (61); a third coil (632) is fixedly installed on the rear side inside the slow air box (631) through a bolt; through holes are provided around the side of the third coil (632), and elastic members (633) are slidably arranged in the through holes; the elastic members (633) are fixedly arranged on the inner rear wall of the slow air box (631), and a piston plate (634) is fixedly installed at the front end of the elastic members (633).

5. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 4, characterized in that: An articulated interface (51) with an electrical connection function is fixedly installed on the wearable vest (5); a protective fabric (52) with a protective function is fixedly installed on the wearable vest (5); a hard rubber frame (53) is fixedly installed inside the protective fabric (52); a spring (54) with a reset function is inserted and fixedly installed on the top side of the inner frame of the hard rubber frame (53); the spring (54) is fixedly installed on the top side of the knocking plate (55); a first coil (56) is fixedly installed on the bottom side of the inner frame of the hard rubber frame (53) through a bolt; a signal source component (57) is fixedly installed on the side surface of the shell of the first coil (56).

6. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 5, characterized in that: The lens structure (9) includes an opening and closing member (91) rotatably arranged at the outermost side of the inner hole of the head-mounted glasses (3); the opening and closing member (91) is fixedly installed on the side of the mounting seat (92) by bolts, and the mounting seat (92) is snap-fitted and fixedly installed at the inner hole of the head-mounted glasses (3); the mounting seat (92) is threadedly installed on the side of the limiting sleeve (93); a power control box (94) is fixedly installed on the side of the limiting sleeve (93) by bolts; a protective washer (95) is press-fitted and fixed inside the limiting sleeve (93), and the protective washer (95) is fixedly arranged on both sides of the electrochromic glass (96); the electrochromic glass (96) is connected to the power control box (94) through a cable; a contact lens (97) is press-fitted and fixed on the side of the limiting sleeve (93).

7. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 6, characterized in that: The opening and closing member (91) includes a fixed disk (911) fixedly installed on the side of the mounting seat (92) by bolts; a rotating disk (912) with a driving function is rotatably arranged on the side of the fixed disk (911); a limiting chute (913) is formed on the side of the rotating disk (912), and a convex block (914) is slidably arranged inside the chute (913); the convex block (914) is inserted into the side of the moving blade (915), and the moving blade (915) is slidably arranged in the slot between the fixed disk (911) and the rotating disk (912).

8. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 7, characterized in that: The interaction box (4) is fixedly installed on the strap of the head-mounted glasses (3), and a front-view camera for data collection is fixedly installed on the side of the interaction box (4) by bolts; an eye movement capture camera for data collection is fixedly installed inside the head-mounted glasses (3).

9. The three-dimensional reconstruction demonstration device for modular historical events based on AR technology according to claim 8, characterized in that: The interaction box (4) includes a lightweight battery pack arranged inside, a control panel fixedly installed inside the interaction box (4), and a cable wound inside the interaction box (4); a glass lens is integrally arranged between the lens structure (9) and the outer lens of the head-mounted glasses (3), and the glass lens enables light to pass through three grating areas of the surface relief grating lens along the designed route.

10. A method of using a modular three-dimensional reconstruction demonstration device for historical events based on AR technology, implementing a modular three-dimensional reconstruction demonstration device for historical events based on AR technology as described in claim 9, characterized in that: It includes the following steps: Step 1: Wear and adjust; After wearing the head-mounted glasses (3) and the wearable vest (5) on the user, the interaction box (4) provides air pressure energy for the buffer airbag (61) through the first electronic control component (62) here to achieve the wearing effect of the head-mounted glasses (3), and then manually adjust the spatial positions of the hinge bracket (7) and the interaction sensor (8) so that the interaction sensor (8) can perform signal interaction with the signal source component (57). Step 2: AR demonstration; The cable of the interaction box (4) is connected to the articulated interface (51) in a wired manner, and then the demonstration process is carried out through the head-mounted glasses (3) and the wearable vest (5). Step 3, Interactive feedback; during the demonstration, the second electronic control component (63) enables the head-mounted glasses (3) to perform a slight vibration action at the position of the user's eyes, enhancing the interactive effect of the demonstration; by adjusting the switching of the three display modes of the lens structure (9), the full-lens display mode, the AR display mode, and the VR display mode are respectively realized, thereby achieving different demonstration modes in different situations to improve the demonstration effect; then, the distributed rigid rubber frame (53) formed on the wearable vest (5) vibrates slightly in combination with the demonstration content, thereby improving the high interactive actions provided by the wearable vest (5) for the user during the demonstration. At the same time, the signal interaction of the interactive sensor (8) can, based on the working mechanism of the dynamic role assignment algorithm, achieve real-time spatial feedback for multi-person collaboration during the demonstration actions.

Images