A large-screen physical model interaction system and method based on magnetic attraction structure

Abstract

The application relates to the technical field of human-computer interaction, and discloses a large-screen physical model interaction system and method based on a magnetic attraction structure, which comprises the following steps: an interaction model module provides an entity interaction carrier, which comprises a model body customized according to a scene and a permanent magnet submodule symmetrically arranged in a double magnetic pole mode, so that the adsorption is ensured without deviation; a special display module realizes display and magnetic attraction cooperation functions, a plurality of subcomponents are sequentially arranged from the outside to the inside, the effective distance from a display core submodule to a magnetic attraction cooperation iron plate is strictly controlled, the iron plate is provided with light transmission holes matched with LED lamp beads to guarantee display effects; an information triggering module stores identification information or realizes image recognition in a chip mode, so that the entity model and digital content are linked to realize "just put and just display"; and a heat insulation and buffering module can protect a driving submodule and buffer adsorption impact force. The system is stable in adsorption and lossless in display, can be used in the modification of existing equipment, is suitable for large screens of various sizes, and effectively improves large-screen deduction and interaction experience.

Description

Technical Field

[0001] This invention relates to the field of human-computer interaction technology, specifically to a large-screen physical model interaction system and method based on a magnetic structure. Background Technology

[0002] In the field of human-computer interaction technology, large displays are the core information presentation carriers in scenarios such as command and control, smart cities, and industrial simulation. Their interactive experience directly affects decision-making efficiency and simulation accuracy. Traditional large-screen interaction mostly relies on mice, keyboards, or purely virtual touch controls. In scenarios such as complex situational simulations and physical structure simulations (such as mechanical assembly), due to the lack of physical interaction carriers, users find it difficult to intuitively perceive the positional relationships and combination logic of components. This results in abstract operations, high barriers to entry, and an inability to achieve multi-person collaborative physical operations. There is an urgent need for interactive solutions that better meet practical needs to improve intuitiveness and efficiency.

[0003] Existing large-screen physical model interaction systems based on magnetic structures suffer from several drawbacks. The magnetic structure design is flawed; the iron plate directly covering the backlight area can easily block LED light, causing brightness degradation, dark areas, and compromised display integrity. Furthermore, the magnetic distance is not precisely controlled; too large a distance results in insufficient adhesion, causing the model to detach easily, while too small a distance necessitates compressing the screen structure and increasing hardware design complexity. Additionally, the lack of a linkage mechanism between the physical model and digital content, coupled with the difficulty in supporting multi-user collaborative operation, further restricts the smoothness of interaction and the practicality of simulation, failing to meet the needs of real-world scenarios. Therefore, a large-screen physical model interaction system and method based on magnetic structures are needed to address these issues. Summary of the Invention

[0004] To address the aforementioned technical problems, this paper provides a large-screen physical model interaction system and method based on a magnetic structure. This technical solution solves the problems of existing large-screen physical model interaction systems based on magnetic structures mentioned in the background. These systems suffer from unreasonable magnetic structure design, where the iron plate directly covering the backlight area easily blocks LED light, causing brightness decay and dark areas on the large screen, thus compromising display integrity. Furthermore, the magnetic distance is not precisely controlled; if the spacing is too large, the attraction force is insufficient, causing the model to easily fall off; if the spacing is too small, the screen structure needs to be compressed, increasing the difficulty of hardware design. In addition, there is a lack of linkage mechanism between the physical model and digital content, and it is difficult to support multi-person collaborative operation, further restricting the smoothness of interaction and the practicality of deduction, thus failing to meet the needs of actual scenarios.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A large-screen physical model interaction system based on a magnetic structure includes:

[0007] The interactive model module provides a physical interactive carrier, including a model body sub-component and a permanent magnet sub-module. The model body sub-component is a physical structure customized according to different scenarios. The permanent magnet sub-module is built into the bottom of the model body sub-component and adopts a dual-magnetic-pole symmetrical arrangement structure. Specifically, two neodymium iron boron permanent magnets of the same specification are symmetrically arranged along the central axis of the model's adsorption surface. The magnetic poles are perpendicular to the adsorption surface and the N pole faces the adsorption surface. This is used to form a stable magnetic adsorption with the special display module to ensure that the model does not shift when it is adsorbed.

[0008] An information triggering module, which is used to realize the linkage between the entity model and digital content, is integrated into the interactive model module and the special display module;

[0009] A special display module, which is used to realize the display and magnetic attraction functions, includes, from the outside to the inside, a shell sub-component, a touch sub-module, a display core sub-module, an optical sub-module, a light guide sub-module, a reflector sub-module, a backlight module sub-module, a magnetic attraction sub-module, and a driving sub-module;

[0010] The special display module strictly controls the effective distance d from the outer surface of the display core sub-module to the magnetic attraction sub-module to ensure a stable attraction force between the permanent magnet sub-module and the magnetic attraction sub-module. The interactive model module has a built-in chip sub-module, and the special display module integrates a reading sub-module at the corresponding position, or integrates an image recognition sub-module. When the interactive model module is attracted to a specific position of the special display module, the information triggering module can automatically trigger the special display module to display the digital content corresponding to the interactive model module, realizing instant display upon placement.

[0011] In an optional embodiment, the touch submodule is a capacitive touch glass that is attached to the outside of the display core submodule to enable multi-touch interaction. The touch submodule supports multi-touch. When the system does not require touch functionality, the touch submodule can be omitted, and the display core submodule can be used directly as the interactive contact surface. In this case, the effective distance d is adjusted to the distance from the outer surface of the display core submodule to the magnetically attached submodule.

[0012] In an optional embodiment, the display core submodule is an LCD panel, which serves as the core display component of the system and is used to present digital content.

[0013] In an optional embodiment, the optical submodule includes a diffusion film and a brightness enhancement film, which are stacked sequentially to uniformly guide light and improve light utilization.

[0014] In an optional embodiment, the light guide submodule is either a light guide plate or a silicone pad, one of which is selected, and is used to guide the light from the backlight module submodule to the display core submodule. The reflective submodule is a reflective film, which is attached to the side of the light guide submodule away from the display core submodule, and is used to reflect the downward leakage light to improve light utilization.

[0015] In an optional embodiment, the backlight module submodule is an LED backlight module, used to provide the backlight source required for the display. The magnetic coupling submodule is an iron plate, laid flat below the backlight module submodule, with an array of light-transmitting holes on it that correspond one-to-one with the LED beads in the backlight module submodule, ensuring that the backlight is emitted without obstruction. At the same time, it forms a magnetic circuit with the permanent magnet submodule of the interactive model module. The driving submodule is a PCB board, attached to the side of the magnetic coupling submodule away from the backlight module submodule, used to drive the operation of the backlight module submodule and the display core submodule.

[0016] In an optional embodiment, the interactive model module further includes a magnet fixing sub-module. The model body sub-component has a magnet groove inside that matches the permanent magnet sub-module. The magnet fixing sub-module is made of epoxy resin and fixes the permanent magnet sub-module in the magnet groove, ensuring that the distance between the permanent magnet sub-module and the model adsorption surface is fixed and that the permanent magnet sub-module does not shift during system use. The model adsorption surface is smoothed to avoid scratching the surface of the touch sub-module or display core sub-module of the special display module.

[0017] In an optional embodiment, the information triggering module includes a chip submodule that stores the identification information of the interactive model module, reads the sensing range of the submodule and the light-transmitting area of ​​the magnetic coupling submodule, and if an image recognition submodule is used, it is a camera module integrated at the four corners of the special display module, which triggers digital content by recognizing the shape features of the interactive model module.

[0018] In an optional embodiment, the system further includes a heat insulation buffer module, which is a silicone pad disposed between the magnetic attraction submodule and the driving submodule. The heat insulation buffer module is used to isolate the heat conducted from the backlight module submodule to the driving submodule, protect the driving submodule, and buffer the impact force when the interactive model module is attracted, so as to avoid damage to the internal sub-components of the special display module.

[0019] Furthermore, a large-screen physical model interaction method based on a magnetic structure is proposed, which is used to execute the large-screen physical model interaction system based on a magnetic structure as described above, including the following steps:

[0020] S1. When the user brings the interactive model module close to the surface of the special display module, the permanent magnet sub-module of the interactive model module and the magnetic attraction sub-module of the special display module generate an attraction force through the magnetic circuit. Due to the effective distance d from the outer surface of the display core sub-module to the magnetic attraction sub-module, the interactive model module is stably attracted to the surface of the special display module without accidental displacement.

[0021] S2. If the system integrates an information triggering module, when the interactive model module is attached to a specific position of the special display module, the reading submodule of the information triggering module reads the identification information of the chip submodule within the interactive model module, or the image recognition submodule identifies the shape features of the interactive model module, triggering the display core submodule of the special display module to display the digital content corresponding to the interactive model module, thus achieving instant display upon placement.

[0022] S3. Users can directly move, arrange, or combine interactive model modules on the surface of special display modules, and perform situational analysis, structural simulation, or collaborative planning in combination with the digital content presented by the core display sub-modules. Multiple users can operate different interactive model modules at the same time to achieve multi-role collaborative interaction.

[0023] S4. The user applies a vertical pulling force to the interactive model module to overcome the attraction between the permanent magnet sub-module and the magnetic attraction sub-module and remove the interactive model module. Repeat steps S1-S3 to perform the next layout and interaction. After the deduction is completed, remove all interactive model modules and the special display module returns to its initial display state.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This solution proposes a large-screen physical model interaction system based on a magnetic structure. The interaction model module adopts a scene-customized physical model body and a permanent magnet sub-module with a symmetrical arrangement of two magnetic poles. Combined with the special display module, the effective distance between the outer surface of the display core sub-module and the magnetic matching sub-module (iron plate) is precisely controlled. The iron plate has an array of light-transmitting holes that correspond one-to-one with the LED beads. This achieves stable adsorption of the physical model and the large screen without light obstruction. It avoids the problems of dark areas and brightness attenuation on the large screen caused by magnetic adsorption, and prevents the model from shifting or falling off. It is suitable for physical interaction needs in multiple scenarios.

[0026] This solution proposes a large-screen physical model interaction system based on a magnetic structure. By integrating a chip sub-module (storing model identifiers) and a reading sub-module through an information triggering module, or integrating an image recognition sub-module (recognizing model shape), it achieves "instant display" of digital content when the physical model is attached to a specific position on the large screen, solving the problem of disconnect between physical and virtual elements in traditional large-screen interactions. Simultaneously, the system supports multiple users operating multiple different types of interactive model modules. Combined with a heat insulation and buffering module (isolieving heat and buffering the impact of attachment) to protect the internal components of special display modules, it enables multi-role collaborative simulation and long-term stable operation of the equipment, improving the smoothness of interaction and the durability of the equipment in complex scenarios.

[0027] This solution proposes a large-screen physical model interaction system based on a magnetic structure. Through a special display module, the touch sub-module can be omitted, and only the display core sub-module can be retained as the interaction contact surface. It also supports the modification scheme of adding magnetic cooperation sub-modules and related components of information triggering module based on existing large-screen devices. This achieves the adaptation to different functional requirements and existing hardware, and the interactive function can be upgraded without replacing the entire large-screen device, which significantly reduces the application cost and further expands the applicability of the solution. Attached Figure Description

[0028] Figure 1 This is a side view of the special display module in this invention;

[0029] Figure 2 This is an exploded view of the special display module in this invention;

[0030] Figure 3 This is a structural decomposition diagram of the interaction model module in this invention;

[0031] Figure 4 This is a cross-sectional schematic diagram of the special display module in this invention;

[0032] 1. Shell sub-component; 2. Frame; 3. Drive sub-module; 4. Backlight module sub-module; 5. Magnetic attachment sub-module; 6. Reflector sub-module; 7. Light guide sub-module; 8. Optical sub-module; 9. Display core sub-module; 10. Touch sub-module; 11. Interactive model module; 1101. Model body sub-component; 1102. Permanent magnet sub-module; 1103. Magnet fixing sub-module. Detailed Implementation

[0033] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] Reference Figure 1 - Figure 4As shown, a large-screen physical model interaction system based on a magnetic structure includes:

[0035] Interactive model module: used to provide a physical interaction carrier, including model body sub-components and permanent magnet sub-modules;

[0036] The model's main components are physical structures (such as vehicles and buildings) customized according to scenarios such as command and control, smart cities, and industrial simulation.

[0037] The permanent magnet sub-module is built into the bottom of the model body sub-component and adopts a "dual magnetic pole symmetrical arrangement" structure. Specifically, two neodymium iron boron permanent magnets of the same specification are symmetrically arranged along the central axis of the model adsorption surface. The magnetic pole direction is perpendicular to the adsorption surface and the N pole faces the adsorption surface. This is used to form a stable magnetic adsorption with the special display module to ensure that the model does not shift when it is adsorbed.

[0038] Special display module: used to realize display and magnetic attraction functions, from the outside to the inside, it includes a shell sub-component, a touch sub-module, a display core sub-module, an optical sub-module, a light guide sub-module, a reflector sub-module, a backlight module sub-module, a magnetic attraction sub-module, and a driving sub-module. Among them, a frame is provided on the inside of the shell sub-component to support the touch sub-module, the display core sub-module, etc.

[0039] The outer casing sub-components are used to protect the internal sub-components and are made of high-strength materials.

[0040] The touch submodule is a capacitive touch glass (optional), which is attached to the outside of the display core submodule to enable multi-touch interaction;

[0041] The display core submodule is an LCD panel, which serves as the core display component of the system and is used to present digital content.

[0042] The optical submodule includes a diffusion film and a brightness enhancement film, which are stacked in sequence to guide light uniformly and improve light utilization.

[0043] The light guide submodule is either a light guide plate or a silicone pad, whichever is chosen, and is used to transmit the light from the backlight module submodule to the display core submodule;

[0044] The reflective submodule is a reflective film that is attached to the side of the light guide submodule away from the display core submodule. It is used to reflect downward-leaking light and improve light utilization.

[0045] The backlight module sub-module is the LED backlight module, which is an LED lamp bead used to provide the backlight source required for the display;

[0046] The magnetic attraction sub-module is an iron plate, which is laid flat under the backlight module sub-module. It has an array of light-transmitting holes that correspond one-to-one with the LED beads in the backlight module sub-module to ensure that the backlight is emitted without obstruction. At the same time, it forms a magnetic circuit with the permanent magnet sub-module of the interactive model module.

[0047] The driving submodule is a PCB board, attached to the side of the magnetic attraction submodule away from the backlight module submodule, used to drive the operation of the backlight module submodule and the display core submodule; the special display module strictly controls the effective distance d from the outer surface of the display core submodule to the magnetic attraction submodule, and d≤8mm, to ensure a stable attraction force between the permanent magnet submodule and the magnetic attraction submodule; the information trigger module is used to realize the linkage between the physical model and digital content, and is integrated into the interactive model module and the special display module; the interactive model module has a built-in chip submodule (RFID chip or NFC chip), and the special display module integrates a reading submodule (RFID reader or NFC reader) at the corresponding position, or the special display module integrates an image recognition submodule (camera module); when the interactive model module is attracted to a specific position on the special display module, the information trigger module can automatically trigger the special display module to display the digital content (such as data panel, animation effect, operation menu) corresponding to the interactive model module, realizing "instant display upon placement".

[0048] Furthermore, in the interactive model module, the model body sub-component is made of ABS engineering plastic and weighs ≤100g; the permanent magnet sub-module uses N35 grade neodymium iron boron permanent magnets with dimensions of 25mm×15mm×8mm (length×width×thickness), with a 10mm spacing between the two permanent magnets, generating an attraction force of 1.2~1.5N with the magnetic attraction sub-module; in the special display module, the magnetic attraction sub-module is made of cold-rolled steel plate with a thickness of 1.5~2mm, with a galvanized anti-rust treatment, a light-transmitting hole diameter of 2.8mm, a spacing of 10mm (matching the LED beads of the backlight module sub-module), and a hole wall radius of 0.5mm. Light transmittance ≥98%; the display core submodule is an IPS hard screen with a thickness of 2.8-3mm, and a 0.1mm thick PET protective sub-component is attached to the side near the magnetic coupling submodule; the specific allocation of the effective distance d is as follows: the total thickness of the touch submodule + display core submodule + optical submodule + light guide submodule + reflector submodule + backlight module submodule is 5.3-7mm, and the distance from the permanent magnet submodule to the model adsorption surface is 1-1.5mm; the system is compatible with 55-100 inch large screen specifications and supports the transformation based on existing large screen equipment (only the magnetic coupling submodule and related sub-components of the information triggering module need to be added).

[0049] Furthermore, the interactive model module also includes a magnet fixing sub-module; the model body sub-component has a magnet groove inside that matches the permanent magnet sub-module. The magnet fixing sub-module is made of epoxy resin, which fixes the permanent magnet sub-module in the magnet groove, ensuring that the distance between the permanent magnet sub-module and the model adsorption surface is fixed at 1.2mm, and that the permanent magnet sub-module does not shift during system use; the model adsorption surface is smoothed to avoid scratching the surface of the touch sub-module or display core sub-module of the special display module.

[0050] Furthermore, the outer shell of the special display module is made of aluminum alloy with rounded edges to improve safety. The touch sub-module is 0.7-1.1mm thick, supports multi-touch, and has a touch response speed of ≤5ms. When the system does not require touch functionality, the touch sub-module can be omitted, and the display core sub-module can be used directly as the interactive contact surface. In this case, the effective distance d is adjusted to the distance from the outer surface of the display core sub-module to the magnetic mating sub-module, still satisfying d≤8mm.

[0051] Furthermore, the core display submodule of the special display module is an ultra-thin IPS hard screen with a pixel density ≥300PPI, color gamut coverage ≥95% DCI-P3, and display brightness ≥500nits; in the optical submodule, the diffusion film thickness is 0.15~0.2mm, used for uniform light guiding, and the brightness enhancement film thickness is 0.12~0.18mm, used to improve light utilization; in the light guide submodule, if it is a light guide plate, it is made of acrylic material with a thickness of 1.5~2mm, and if it is a silicone pad, it is made of high light transmittance silicone material with a thickness of 1~1.5mm. Both can achieve the function of uniformly transmitting the light from the backlight module submodule to the display core submodule.

[0052] Furthermore, the backlight module sub-module of the special display module is a direct-lit LED lamp array with a lamp spacing of 10mm, a power of 0.2W per lamp, and an adjustable color temperature range of 3000K~6500K; the magnetic coupling sub-module is fixed to the outer shell sub-component through a snap-fit ​​structure, with a snap-fit ​​position error of ≤0.1mm, ensuring that the light-transmitting hole and the LED lamp are completely aligned; a 0.5~1mm thick heat insulation pad (heat insulation sub-module) is set between the magnetic coupling sub-module and the backlight module sub-module to isolate the heat generated by the backlight module sub-module during operation and avoid affecting the magnetic performance of the magnetic coupling sub-module.

[0053] Furthermore, in the information triggering module, the chip sub-module stores the identification information of the interactive model module, reads the sensing range of the sub-module and corresponds to the light-transmitting hole area of ​​the magnetic coupling sub-module, and the trigger response time is ≤100ms; if an image recognition sub-module is used, it is a camera module integrated in the four corners of the special display module, which triggers digital content by recognizing the shape features (such as outline and size) of the interactive model module, and the image recognition accuracy is ≥98%.

[0054] Furthermore, the system also includes a heat insulation buffer module, which is a silicone pad with a thickness of 0.3 to 0.5 mm placed between the magnetic attraction sub-module and the driving sub-module. On the one hand, it is used to isolate the heat conducted from the backlight module sub-module to the driving sub-module, protecting the driving sub-module; on the other hand, it is used to buffer the impact force when the interactive model module is attracted, avoiding damage to the internal sub-components of the special display module. The system supports multi-person collaborative operation and can attract ≥10 different types of interactive model modules at the same time, and the attraction positions of each interactive model module do not interfere with each other.

[0055] Furthermore, a large-screen physical model interaction method based on a magnetic structure is proposed, which is used to execute the large-screen physical model interaction system based on the magnetic structure according to any of the above-mentioned methods, including the following steps:

[0056] S1. When the user brings the interactive model module close to the surface of the special display module, the permanent magnet sub-module of the interactive model module and the magnetic attraction sub-module of the special display module generate an attraction force of 1.2 to 1.5 N through the magnetic circuit. Since the effective distance d from the outer surface of the display core sub-module to the magnetic attraction sub-module is ≤ 8 mm, the interactive model module is stably attracted to the surface of the special display module without accidental displacement.

[0057] S2. If the system integrates an information triggering module, when the interactive model module is attached to a specific position of the special display module, the reading submodule of the information triggering module reads the identification information of the chip submodule within the interactive model module, or the image recognition submodule identifies the shape features of the interactive model module, triggering the display core submodule of the special display module to display the digital content corresponding to the interactive model module, thus achieving "instant display upon placement";

[0058] S3. Users can directly move, arrange, or combine interactive model modules on the surface of the special display module, and perform situational analysis, structural simulation, or collaborative planning in conjunction with the digital content presented by the core display sub-module; multiple users can operate different interactive model modules simultaneously to achieve multi-role collaborative interaction;

[0059] S4. The user applies a vertical pulling force of ≥5N to the interactive model module to overcome the attraction force between the permanent magnet sub-module and the magnetic attraction sub-module and remove the interactive model module; repeat steps S1-S3 to perform the next layout and interaction; after the deduction is completed, remove all interactive model modules and the special display module returns to its initial display state.

[0060] Furthermore, in step S1, when the interactive model module is attached, the adhesion between the model attachment surface and the contact surface of the special display module (the surface of the touch sub-module or the display core sub-module) is ≥95%; in step S3, when the user moves the interactive model module, the display core sub-module of the special display module can update the digital content (such as position coordinates and associated data) corresponding to the position of the interactive model module in real time, with an update delay ≤200ms.

[0061] Specifically, the interactive model module customizes the physical model body (such as vehicles and buildings) according to different scenarios. A magnetic groove is opened at the bottom of the body, and epoxy resin adhesive (magnet fixing sub-module) is used to fix the neodymium iron boron permanent magnets with symmetrically arranged dual magnetic poles. The adsorption surface is smoothed to prevent scratching the large screen. The special display module is assembled from the outside to the inside as follows: outer shell (aluminum alloy material, rounded corners), optional touch sub-module (capacitive touch glass), display core sub-module (LCD panel), optical sub-module (diffuser film + brightness enhancement film), light guide sub-module (light guide plate or silicone pad, one choice), reflective sub-module (reflective film), backlight module sub-module (LED array), magnetic attachment sub-module (iron plate, galvanized and rust-proof), and driving sub-module (PCB board). The effective distance is strictly controlled, and the iron plate is fixed with clips to ensure that the light-transmitting hole is aligned with the LED beads.

[0062] The information triggering module integrates an RFID / NFC chip (for storing identifiers) into the interactive model module and places a reader at the corresponding position in the special display module; alternatively, it integrates a camera module (for image recognition) at the four corners of the large screen to achieve "instant display upon placement". The heat insulation and buffering module specifically places a silicone pad between the iron plate and the PCB board to isolate backlight heat and buffer against adsorption impacts.

[0063] The adsorption positioning is achieved by the user bringing the interactive model module close to the special display module, where the permanent magnet and the iron plate generate an adsorption force, ensuring the model is stably adsorbed without displacement. The information triggering is achieved by the reader reading the chip identifier or the camera recognizing the model's shape when the model is adsorbed to a specific position, triggering the large screen to display the corresponding digital content. The deduction interaction is achieved by the user moving and combining the model, combining it with the digital content on the large screen for deduction, supporting multiple users to operate different models simultaneously. The removal and reset is achieved by applying a vertical pulling force to remove the model, which can be repeated. After the deduction is completed, all models are removed, and the large screen returns to its initial state. It also supports the addition of magnetic cooperation sub-modules and information triggering components to existing large screens, completing the equipment modification.

[0064] Working Principle: Through the magnetic attraction between the interactive model module and the special display module, the linkage response of the information trigger module, and the protective support of the heat insulation buffer module, stable interaction and digital content linkage between the physical model and the large screen are achieved. The dual-pole symmetrically arranged permanent magnet sub-module built into the interactive model module forms a closed magnetic circuit with the magnetic attraction sub-module (iron plate) in the special display module. By precisely controlling the effective distance from the outer surface of the display core sub-module to the iron plate, stable adsorption between the two is ensured. The light-transmitting holes on the iron plate that match the LED beads prevent light blockage and ensure complete display. The information trigger module triggers the corresponding digital content when the model is adsorbed through chip reading or image recognition. The heat insulation buffer module isolates heat and buffers impact, protecting the equipment components.

[0065] The advantages of this invention are as follows: Through the scene-customized physical body and the dual-pole symmetrical arrangement of permanent magnets design of the interactive model module, the precise control of the effective distance between the display core sub-module and the magnetic attraction sub-module (iron plate) by the special display module, and the array-style light-transmitting holes on the iron plate that match the LED beads, stable adsorption of the physical model and the large screen is achieved without light obstruction. This avoids the problems of dark areas and brightness attenuation on the large screen caused by magnetic attraction, and also prevents the model from shifting or falling off. Relying on the chip identification storage and reading function or image recognition function of the information trigger module, the "instant display" linkage between the physical model and digital content is achieved, solving the problem of the disconnect between the physical and virtual in traditional interaction. At the same time, a heat insulation buffer module is equipped to protect the internal components of the device, supports multi-person collaborative operation of different models, and can be modified by adding relevant components to the existing large screen device without replacing the entire hardware. This not only improves the intuitiveness, smoothness and durability of the interaction in complex scenarios, but also significantly reduces the application cost, and can adapt to various scenario requirements such as command and control, smart cities, and industrial simulation.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A large-screen physical model interaction system based on a magnetic structure, characterized in that, include: The interactive model module provides a physical interactive carrier, including a model body sub-component and a permanent magnet sub-module. The model body sub-component is a physical structure customized according to different scenarios. The permanent magnet sub-module is built into the bottom of the model body sub-component and adopts a dual-magnetic-pole symmetrical arrangement structure. Specifically, two neodymium iron boron permanent magnets of the same specification are symmetrically arranged along the central axis of the model's adsorption surface. The magnetic poles are perpendicular to the adsorption surface and the N pole faces the adsorption surface. This is used to form a stable magnetic adsorption with the special display module to ensure that the model does not shift when it is adsorbed. An information triggering module, which is used to realize the linkage between the entity model and digital content, is integrated into the interactive model module and the special display module; A special display module, which is used to realize the display and magnetic attraction functions, includes, from the outside to the inside, a shell sub-component, a touch sub-module, a display core sub-module, an optical sub-module, a light guide sub-module, a reflector sub-module, a backlight module sub-module, a magnetic attraction sub-module, and a driving sub-module; The special display module strictly controls the effective distance d from the outer surface of the display core sub-module to the magnetic attraction sub-module to ensure a stable attraction force between the permanent magnet sub-module and the magnetic attraction sub-module. The interactive model module has a built-in chip sub-module, and the special display module integrates a reading sub-module at the corresponding position, or integrates an image recognition sub-module. When the interactive model module is attracted to a specific position of the special display module, the information triggering module can automatically trigger the special display module to display the digital content corresponding to the interactive model module, realizing instant display upon placement.

2. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The touch submodule is a capacitive touch glass that is attached to the outside of the display core submodule to enable multi-touch interaction. The touch submodule supports multi-touch. When the system does not require touch functionality, the touch submodule can be omitted, and the display core submodule can be used directly as the interactive contact surface. In this case, the effective distance d is adjusted to the distance from the outer surface of the display core submodule to the magnetically attached submodule.

3. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The display core submodule is an LCD panel, which serves as the core display component of the system and is used to present digital content.

4. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The optical submodule includes a diffusion film and a brightness enhancement film, which are stacked in sequence to guide light uniformly and improve light utilization.

5. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The light guide submodule is either a light guide plate or a silicone pad, whichever is chosen, and is used to guide the light from the backlight module submodule to the display core submodule. The reflective submodule is a reflective film, which is attached to the side of the light guide submodule away from the display core submodule, and is used to reflect the downward-leaking light to improve light utilization.

6. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The backlight module submodule is an LED backlight module, used to provide the backlight source required for the display. The magnetic coupling submodule is an iron plate, laid flat below the backlight module submodule, with an array of light-transmitting holes on it that correspond one-to-one with the LED beads in the backlight module submodule, ensuring that the backlight is emitted without obstruction. At the same time, it forms a magnetic circuit with the permanent magnet submodule of the interactive model module. The driving submodule is a PCB board, attached to the side of the magnetic coupling submodule away from the backlight module submodule, used to drive the operation of the backlight module submodule and the display core submodule.

7. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The interactive model module also includes a magnet fixing sub-module. The model body sub-component has a magnet groove inside that matches the permanent magnet sub-module. The magnet fixing sub-module is made of epoxy resin and fixes the permanent magnet sub-module in the magnet groove, ensuring that the distance between the permanent magnet sub-module and the model adsorption surface is fixed and that the permanent magnet sub-module does not shift during system use. The model adsorption surface is smoothed to avoid scratching the surface of the touch sub-module or display core sub-module of the special display module.

8. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: In the information triggering module, the chip sub-module stores the identification information of the interactive model module, reads the sensing range of the sub-module and the light-transmitting hole area of ​​the magnetic coupling sub-module, and if an image recognition sub-module is used, it is a camera module integrated in the four corners of the special display module, which triggers digital content by recognizing the shape features of the interactive model module.

9. The large-screen physical model interaction system based on a magnetic structure according to claim 1, characterized in that: The system also includes a heat insulation buffer module, which is a silicone pad disposed between the magnetic attraction submodule and the driving submodule. The heat insulation buffer module is used to isolate the heat conducted from the backlight module submodule to the driving submodule, protect the driving submodule, and buffer the impact force when the interactive model module is attracted, so as to avoid damage to the internal sub-components of the special display module.

10. A method for interactive physical models on large screens based on magnetic structures, characterized in that, The execution of the large-screen physical model interaction system based on a magnetic structure according to any one of claims 1-9 includes the following steps: S1. When the user brings the interactive model module close to the surface of the special display module, the permanent magnet sub-module of the interactive model module and the magnetic attraction sub-module of the special display module generate an attraction force through the magnetic circuit. Due to the effective distance d from the outer surface of the display core sub-module to the magnetic attraction sub-module, the interactive model module is stably attracted to the surface of the special display module without accidental displacement. S2. If the system integrates an information triggering module, when the interactive model module is attached to a specific position of the special display module, the reading submodule of the information triggering module reads the identification information of the chip submodule within the interactive model module, or the image recognition submodule identifies the shape features of the interactive model module, triggering the display core submodule of the special display module to display the digital content corresponding to the interactive model module, thus achieving instant display upon placement. S3. Users can directly move, arrange, or combine interactive model modules on the surface of special display modules, and perform situational analysis, structural simulation, or collaborative planning in combination with the digital content presented by the core display sub-modules. Multiple users can operate different interactive model modules at the same time to achieve multi-role collaborative interaction. S4. The user applies a vertical pulling force to the interactive model module to overcome the attraction between the permanent magnet sub-module and the magnetic attraction sub-module and remove the interactive model module. Repeat steps S1-S3 to perform the next layout and interaction. After the deduction is completed, remove all interactive model modules and the special display module returns to its initial display state.

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