An underground space layout scheme VR visualization interaction device and an interaction method

Abstract

The application discloses a kind of underground space layout scheme VR visualization interaction device and interaction method, and interaction device includes three-dimensional graphics processing unit and the virtual reality interaction terminal of three-dimensional graphics processing unit interaction, design software synchronous interface and collaborative design communication module;Three-dimensional graphics processing unit uses high-performance graphics processor and special graphics acceleration chip, two-dimensional plane layout data is converted into three-dimensional space model and carries out real-time rendering;Virtual reality interaction terminal is as the direct interface of user experience, and is integrated with three-dimensional graphics processing unit by low-delay wireless transmission module;Design software synchronous interface realizes the data exchange with external design software, and modifies synchronization to three-dimensional graphics processing unit;Collaborative design communication module is used to support the real-time collaboration and communication of multiple users in virtual environment.The application realizes the rapid visualization and real-time interaction of underground space layout by combining high-performance hardware with special software.

Description

Technical Field

[0001] This invention relates to the fields of virtual reality hardware devices and 3D visualization technology, specifically to a VR visualization interactive device and interaction method for an underground space layout scheme. Background Technology

[0002] Currently, the main methods for underground space layout design still rely on traditional two-dimensional drawings and simple 3D rendering techniques. While two-dimensional drawings, as the foundation of engineering design, provide accurate spatial dimensions and layout information, their planar representation limits the intuitive understanding of spatial structure and layout by designers and project stakeholders. Although simple 3D rendering techniques improve this issue to some extent by generating 3D models to showcase spatial effects, this approach still has significant shortcomings in complex underground space designs. Especially in complex underground projects, such as subway stations and underground integrated transportation hubs, traditional design methods often fail to intuitively demonstrate the scale of the space, thus limiting design efficiency and the quality of the solutions.

[0003] Although virtual reality (VR) technology has been increasingly applied in architectural design in recent years, allowing designers to more intuitively experience and interact with design spaces, existing VR visualization systems have several shortcomings when applied to underground space layout design. First, these systems often fail to fully consider the specific needs of underground spaces, such as complex geometry, limited natural light, and the design requirements of ventilation and drainage systems, resulting in an inability to accurately reproduce these key environmental factors when simulating underground spaces. Second, existing VR systems often lack a realistic sense of immersion and interactivity when rendering underground spaces, making it difficult for designers to intuitively perceive and evaluate the actual layout and proportions of the space through virtual reality. These shortcomings are particularly pronounced in complex underground projects; existing technologies cannot effectively represent the scale of space, nor do they support real-time design modifications and multi-person collaboration, severely impacting design efficiency and the quality of the solutions. How to achieve real-time interaction while ensuring high-quality rendering, and how to ensure the smoothness and accuracy of the VR experience, remain key problems that existing technologies struggle to solve. These deficiencies pose numerous challenges to the practical application of underground space layout design, necessitating improvement and innovation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a VR visualization and interactive device and method for underground space layout schemes. It aims to overcome the deficiencies of current design methods in terms of intuitiveness, interactivity, and multi-user collaboration capabilities. By combining high-performance hardware with dedicated software, this device can achieve rapid visualization and real-time interaction of underground space layouts.

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

[0006] A VR visualization and interactive device for underground space layout schemes, comprising:

[0007] A three-dimensional graphics processing unit, a virtual reality interactive terminal that interacts with the three-dimensional graphics processing unit, a design software synchronization interface, and a collaborative design communication module;

[0008] The three-dimensional graphics processing unit uses a high-performance graphics processor and a dedicated graphics acceleration chip to convert the two-dimensional planar layout data of the underground space into a three-dimensional spatial model and perform real-time rendering.

[0009] The virtual reality interactive terminal serves as a direct interface for user experience. It integrates with a three-dimensional graphics processing unit through a low-latency wireless transmission module, enabling users to interact naturally in a simulated underground environment.

[0010] The design software synchronization interface is used to realize data exchange with external design software, and to synchronize the modifications in the external design software to the three-dimensional graphics processing unit, so as to adapt to the frequent adjustment and optimization needs in the underground space design process.

[0011] The collaborative design communication module is used to support real-time collaboration and communication among multiple users in a virtual environment, and to synchronously process complex underground layout projects.

[0012] Preferably, the three-dimensional graphics processing unit further includes:

[0013] Ray tracing processors are used to achieve realistic lighting effects by simulating the propagation of light sources, including direct lighting, indirect lighting, and shadow effects;

[0014] Texture mapping accelerator is used to quickly apply surface textures from a preset material library to 3D models, thereby enhancing the realism of the models and rendering efficiency.

[0015] Preferably, the three-dimensional graphics processing unit is configured with an Intel Core i7 processor, an NVIDIA RTX 3060 graphics card, 16GB of RAM, and a 512GB SSD.

[0016] Preferably, the virtual reality interactive terminal includes:

[0017] High-resolution VR headset, employing a display system with a wide field of view and high angular resolution;

[0018] Motion capture systems, using handheld devices or treadmills, enable users to interact naturally and intuitively in a virtual environment.

[0019] Preferably, the virtual reality interactive terminal further includes a haptic feedback controller, which simulates the tactile sensation of different materials through a linear resonant actuator and a pressure sensor array, thereby enhancing the user's immersion.

[0020] Preferably, the design software synchronization interface includes:

[0021] A high-speed data conversion processor is used to capture real-time modifications in external design software and convert them into a data format suitable for 3D graphics processing units;

[0022] The multi-protocol communication module supports multiple high-speed data transmission standards, ensuring compatibility with different design software and low-latency data exchange.

[0023] Preferably, the high-speed data conversion processor supports real-time data exchange with AutoCAD, Rhino, and various BIM tools, and the multi-protocol communication module supports multiple high-speed data transmission standards, including USB 3.1, Thunderbolt 3, and 10Gb Ethernet.

[0024] Preferably, the collaborative design communication module includes:

[0025] The virtual coordinate synchronization unit is used to ensure that the positions of multiple users in the virtual environment are synchronized in real time;

[0026] Design markup synchronizer to support real-time sharing and highlighting of design marks in a virtual environment;

[0027] High-performance audio processing chips and spatial audio arrays are used to achieve high-quality voice communication and directional sound reproduction, enhancing the collaborative experience;

[0028] The network synchronization processor employs a specialized acceleration algorithm to minimize data transmission latency and ensure consistency for all users in the virtual environment.

[0029] The present invention also discloses an interaction method for a VR visualization interaction device based on the above-mentioned underground space layout scheme, the interaction method comprising the following steps:

[0030] S1 creates two-dimensional planar layout data in external design software and transmits the data to the three-dimensional graphics processing unit through the design software's synchronization interface;

[0031] S2 converts two-dimensional data into a three-dimensional spatial model through a three-dimensional graphics processing unit and renders it in a virtual reality interactive terminal.

[0032] S3 uses a virtual reality interactive terminal, allowing users to enter a virtual environment, interact with a three-dimensional spatial model, and check and evaluate design schemes.

[0033] S4 enables real-time collaboration and communication among multiple users in a virtual environment through a collaborative design communication module, allowing for the marking, discussion, and modification of design schemes.

[0034] S5 will synchronize design modifications made in the virtual environment back to the external design software, enabling real-time feedback and optimization of the design process.

[0035] Preferably, step S4 includes a multi-cycle update function, which supports real-time synchronization of each user's design modifications during multi-user collaboration and reflects these modifications in the updated 3D spatial model, ensuring the consistency and real-time nature of the virtual environment seen by all users.

[0036] The beneficial effects of this invention are as follows: Compared with existing technologies, the VR visualization interactive device for underground space layout schemes of this invention has many significant advantages. Traditional two-dimensional drawings and simple three-dimensional renderings are difficult to accurately and intuitively represent the actual effect of complex underground spaces. Designers often need to rely on experience and imagination to make judgments. However, this device, through the combination of VR hardware and dedicated software, provides designers with an immersive virtual environment, greatly improving the accuracy of spatial perception and enabling designers to more clearly grasp the scale and proportion of the space. Designers can modify and optimize the scheme in real time in the virtual environment and immediately see the effect of the modifications, which significantly improves the efficiency of the design process and reduces the time cost of repeated modifications. At the same time, the multi-user collaboration mode breaks through the communication barriers commonly found in traditional design. Team members can discuss, mark, and make decisions in real time in the same virtual space, ensuring that all participants have a consistent understanding and progress of the design, further improving collaboration efficiency. In addition, the deep integration of this device with commonly used design software allows designers to work in a familiar tool environment while enjoying the unique advantages brought by VR visualization. This seamless integration not only maintains the continuity of the design process but also allows designers to synchronize real-time feedback from the virtual environment to the original design software, forming a closed-loop optimization process. Through these innovative designs, this invention greatly improves the quality and efficiency of underground space design, especially providing an unprecedented solution for the planning and design of complex underground space projects, enabling designers to complete tasks more accurately and efficiently. Attached Figure Description

[0037] Figure 1 This is a system architecture diagram of a VR visualization interactive device for an underground space layout scheme according to an embodiment of the present invention;

[0038] Figure 2 This is a flowchart of the VR visualization and interactive device for underground space layout scheme according to an embodiment of the present invention;

[0039] Figure 3This is a hardware structure diagram of the three-dimensional graphics processing unit according to an embodiment of the present invention;

[0040] Figure 4 This is a hardware structure diagram of a virtual reality interactive terminal according to an embodiment of the present invention;

[0041] Figure 5 This is a hardware structure diagram of the design software synchronization interface according to an embodiment of the present invention;

[0042] Figure 6 This is a hardware structure diagram of the collaborative design communication module according to an embodiment of the present invention;

[0043] Figure 7 This is a flowchart of the VR visualization and interactive method for underground space layout scheme according to an embodiment of the present invention. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the present invention.

[0045] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0046] Please see Figure 1-6 This embodiment provides a VR visualization and interactive device for underground space layout schemes, including a 3D graphics processing unit, a virtual reality interactive terminal that interacts with the 3D graphics processing unit, a design software synchronization interface, and a collaborative design communication module. The 3D graphics processing unit is the core computing component of the device, employing a high-performance graphics processor and a dedicated graphics acceleration chip. It can quickly convert 2D planar layout data of underground space into realistic 3D spatial models and perform real-time rendering. Through this process, designers can directly generate 3D models from 2D drawings, greatly improving the intuitiveness and accuracy of the design.

[0047] The virtual reality (VR) interactive terminal serves as the direct interface between the user and the 3D graphics processing unit (3D). As the primary entry point for user experience, the VR interactive terminal is equipped with a high-resolution display and motion capture system, ensuring users are immersed in the virtual environment and can interact with 3D models in real time. This interactive terminal seamlessly integrates with the 3D graphics processing unit through a low-latency wireless transmission module, supporting natural user interaction in a simulated underground environment. Every user action is rapidly transmitted and responded to, resulting in a smooth operating experience. This low-latency wireless transmission eliminates concerns about screen stuttering or unresponsive operation caused by latency when designers operate in the virtual environment, ensuring efficient design work.

[0048] The design software synchronization interface facilitates data exchange with external design software. Its high-speed data conversion processor captures and synchronizes modifications from the external design software, transmitting these changes in real-time to the 3D graphics processing unit. This adapts to the frequent adjustments and optimizations required in underground space design. Through this interface, designers can create designs in familiar CAD software, and these design modifications are immediately reflected in the virtual reality environment, greatly enhancing the real-time nature and collaborative nature of the design. The multi-protocol communication module of the design software synchronization interface supports compatibility with various mainstream design software, enabling this device to be widely applied in various underground space layout design scenarios.

[0049] The collaborative design communication module supports real-time collaboration and communication among multiple users in a virtual environment, enabling the synchronous processing of complex underground layout projects and ensuring that multiple designers can work simultaneously in the same virtual space. This module ensures real-time synchronization of all users' positions through a virtual coordinate synchronization unit and supports the highlighting and instant sharing of design points through a design marker synchronizer. These features allow team members to easily exchange ideas and provide immediate feedback in the virtual environment, significantly improving the collaborative efficiency and quality of solutions in complex underground space layout design.

[0050] Please refer to Figure 3, the 3D graphics processing unit also includes a ray tracing processor and a texture mapping accelerator. The role of the ray tracing processor is to achieve realistic lighting effects by simulating the propagation path of light sources in 3D space. In the design of underground spaces, the authenticity of lighting effects directly affects the accuracy of designers' perception of space. Through the ray tracing processor, the system can simulate various lighting scenarios including direct lighting, indirect lighting, and shadow effects, enabling designers to truly observe the reflection, refraction, and shadow changes of light on different materials and structures in a virtual environment, thus more accurately evaluating the feasibility of design schemes. The texture mapping accelerator is responsible for quickly applying the surface textures in the preset material library to 3D models. The surface characteristics of different materials in underground spaces, such as the roughness of concrete and the reflective properties of metal, can be quickly presented in the model through the texture mapping accelerator. This not only improves the realism of the model but also greatly enhances the rendering efficiency, enabling designers to complete complex material applications and adjustments in a short time and helping them more intuitively foresee the final design effect.

[0051] Specifically, the 3D graphics processing unit can adopt a configuration of an Intel Core i7 processor, an NVIDIA RTX 3060 graphics card, 16GB of RAM, and a 512GB SSD. The Intel Core i7 processor provides powerful computing capabilities to ensure the efficiency of multi-threaded task processing; the NVIDIA RTX 3060 graphics card integrates dedicated ray tracing and texture acceleration hardware units, which can significantly improve the speed and quality of 3D rendering; 16GB of RAM provides sufficient memory resources to ensure the smooth processing of large 3D models; the �12GB SSD not only speeds up data reading but also provides enough space for storing complex design files. This hardware configuration can effectively support the complex rendering and real-time interaction requirements of underground space layouts, ensuring the efficient progress of the entire design process. [[ID=~4]]

[0052] Please refer to Figure 4 It should be noted that there is an error in the original text where "�12GB" is likely a typo. It should probably be "512GB" which has been corrected in the translation.Virtual reality interactive terminals serve as the direct interface for user experience, providing an immersive and highly interactive design environment. They consist of a high-resolution VR headset and a motion capture system. The VR headset utilizes a display system with a wide field of view and high angular resolution, specifically employing dual 4K resolution OLED microdisplays and a dedicated optical system. This configuration not only provides clear and detailed image quality but also ensures a wide 120° field of view, allowing users to obtain an extremely broad and distortion-free field of vision in the virtual environment, further enhancing the sense of space and presence. VR headsets can utilize mature high-end products on the market, such as the HTC VIVE Pro 2 or Varjo XR-3. These devices not only offer high-resolution display effects but also possess a wide field of view and excellent color performance, meeting the high visual accuracy requirements of complex underground space design. The motion capture system can use controller devices or treadmills, such as OmniVR and KatVR, providing users with flexible interaction methods. Using a controller, users can naturally perform various design operations in the virtual environment, such as selection, dragging, and zooming. The treadmill allows users to move through the virtual space by walking or running, creating an immersive experience that helps designers better understand and explore the complex structure and layout of underground spaces. This natural and intuitive interaction significantly improves users' understanding and evaluation efficiency of design solutions.

[0053] Furthermore, virtual reality interactive terminals can be equipped with haptic feedback controllers. Through precise linear resonant actuators and pressure sensor arrays, users can experience the realistic tactile sensations of different materials, such as the roughness of concrete or the coldness of metal. Haptic feedback not only enhances the user's immersion in the virtual environment but also allows them to more accurately perceive the selection and effects of materials in the design. These hardware components are tightly integrated with the 3D graphics processing unit through low-latency wireless transmission modules, ensuring real-time and smooth responses to user operations in the virtual environment. This allows every modification and adjustment during the design process to be instantly reflected in the virtual space, greatly improving the smoothness and efficiency of the design work.

[0054] Please see Figure 5The design software synchronization interface includes a high-speed data conversion processor and a multi-protocol communication module. The high-speed data conversion processor captures real-time modifications from external design software and instantly converts this modified data into a data format suitable for the 3D graphics processing unit. This processor is designed to ensure that when designers make design modifications in external design software, such as AutoCAD, Rhino, or various BIM tools, the data can be quickly captured and accurately converted, achieving seamless real-time synchronization. Through this process, the 3D model seen by the designer in the virtual reality environment can remain consistent with the design changes in the external software, thereby improving the real-time performance and accuracy of the design. The multi-protocol communication module supports multiple high-speed data transmission standards, ensuring compatibility and low-latency data exchange with different design software. This module is compatible with multiple communication standards, including USB 3.1, Thunderbolt 3, and 10Gb Ethernet, thus meeting the connectivity needs of different external design software and hardware platforms. Through these high-speed transmission standards, designers can obtain a fast and stable connection experience when exchanging data between different software and devices, avoiding design inefficiencies caused by data transmission delays or incompatibility.

[0055] This design software synchronization interface enables the entire system to interact with data efficiently and in real-time when handling complex underground space layout designs. It ensures that the model in the virtual environment can quickly respond to external design modifications, while also guaranteeing broad compatibility with various design tools, providing designers with an efficient and flexible design platform. This platform not only improves the smoothness of the design process but also greatly enhances the system's adaptability, enabling it to play a role in various complex underground space design projects.

[0056] Please see Figure 6The collaborative design communication module includes a virtual coordinate synchronization unit, a design mark synchronizer, a high-performance audio processing chip and spatial audio array, and a network synchronization processor. These hardware components are integrated through a central coprocessor. The main function of the virtual coordinate synchronization unit is to ensure that the positions of multiple users in the virtual environment are synchronized in real time. This means that regardless of the team members' location, their position in the virtual space is accurately and instantly reflected in the field of vision of other members, thus achieving smoother and more coordinated collaboration. This synchronization mechanism is particularly suitable for multi-person collaborative scenarios in complex underground space design, ensuring that all participants' understanding and operation of the design are always within the same spatial reference system, effectively avoiding operational conflicts or misunderstandings caused by asynchronous positions. The design mark synchronizer supports the real-time sharing and highlighting of design marks in the virtual environment. Through this function, team members can mark on the virtual model and immediately synchronize these marks to other users. For example, when a designer marks a key structure of an underground space, all other participants can immediately see this mark and can discuss or further operate around it. This function greatly improves the efficiency of team collaboration, making the discussion and modification process of complex design schemes more intuitive and interactive. The high-performance audio processing chip and spatial audio array are designed to provide high-quality voice communication and directional sound reproduction. Clear voice communication is crucial in collaborative design processes. The spatial audio array allows users to not only hear clear speech but also perceive the directionality of sound. This design enhances the user's immersion in the virtual environment, making it feel as if each speaker is in their actual location, thus further improving the realism and interactivity of the collaborative experience. Finally, the network synchronization processor employs a dedicated acceleration algorithm to minimize data transmission latency, ensuring that all users see the same content in the virtual environment. In multi-user collaborative design, data transmission latency can lead to inconsistent scenes seen by different users, affecting team collaboration efficiency. The network synchronization processor's acceleration algorithm enables the system to quickly transmit and synchronize data, ensuring that each user's virtual environment remains consistent. This guarantees smooth design discussions and operations, avoiding problems caused by data asynchrony. This combined design enables the collaborative design communication module to provide efficient and stable multi-user collaboration support in virtual reality environments, a key component in ensuring the success of complex underground space design projects.

[0057] Please see Figure 7 Another embodiment of the present invention describes an interaction method for a VR visualization interaction device based on the above-mentioned underground space layout scheme, the interaction method comprising the following steps:

[0058] S1 creates 2D floor plan layout data in external design software and transmits the data to the 3D graphics processing unit via a synchronization interface. Designers typically use AutoCAD, Rhino, or other BIM tools to generate this 2D data; the accuracy and timeliness of data transmission are fundamental to ensuring the smooth progress of the design. The 3D graphics processing unit is optimized for feature processing in underground spaces, particularly when dealing with complex geometries, hierarchical relationships, lighting conditions, and ventilation systems, exhibiting highly efficient data conversion and processing capabilities.

[0059] S2 uses a 3D graphics processing unit to convert 2D data into a 3D spatial model, which is then rendered on a virtual reality interactive terminal. This process utilizes high-performance graphics processors and graphics acceleration chips to quickly convert 2D planar layout data into a three-dimensional model. It can accurately simulate the special environmental conditions of underground spaces, such as light refraction, shadow processing, material reflection characteristics, and multi-layered spatial layout structures. This makes the rendered 3D model more consistent with the characteristics of actual underground spaces, providing designers with an intuitive and immersive evaluation platform to help them more clearly understand the structure and layout of the design scheme.

[0060] In S3, using a virtual reality interactive terminal, users enter a virtual environment to interact with a 3D spatial model, checking and evaluating design schemes. At this stage, designers can freely roam the virtual space, interacting with the 3D model through devices such as controllers and treadmills, simulating various scenarios and conditions to comprehensively assess the feasibility and rationality of the design. This interactive method improves design accuracy, allowing designers to more realistically experience the physical characteristics and spatial sense of underground spaces, and enabling them to quickly identify and correct potential problems in the design.

[0061] S4, through its collaborative design communication module, enables real-time collaboration and communication among multiple users in a virtual environment, allowing them to mark, discuss, and modify design solutions. This module allows multiple designers or project stakeholders to simultaneously enter the same virtual space for real-time communication and collaboration. All operations are instantly synchronized with other users, facilitating rapid consensus and improving the speed and quality of design refinement. The collaborative design communication module is specifically designed with data security and privacy protection features. Through encrypted communication and access control mechanisms, it ensures the security of design data and the full protection of user privacy during multi-user collaboration.

[0062] S5 synchronizes design modifications made in the virtual environment back to the external design software, enabling real-time feedback and optimization throughout the design process. This closed-loop design workflow ensures that all adjustments made by the designer in the virtual environment are accurately reflected in the original design files, avoiding data loss or inconsistencies and significantly improving the design quality and efficiency of underground space layout schemes. The synchronization process integrates security protocols to ensure that data is not tampered with or leaked during transmission and synchronization, thus guaranteeing the integrity and confidentiality of design data.

[0063] Furthermore, step S4 includes a multi-cycle update function to support real-time synchronization of design modifications by each user during multi-user collaboration. Through this function, when any user modifies the 3D spatial model in the virtual environment, the modification is immediately captured by the system and transmitted to all other participating users. This real-time synchronization mechanism ensures that everyone in the design team can see the latest design changes simultaneously, regardless of their location or the device they are using. Simultaneously, the system accurately reflects these modifications in the updated 3D spatial model, allowing all users to see the same content in the virtual environment. This consistency and real-time performance not only improves collaboration efficiency but also effectively avoids misunderstandings and design conflicts caused by information asymmetry or delays.

[0064] Taking subway stations as an example, as complex and large-scale public transportation hubs, subway station design needs to consider various factors, such as passenger flow, emergency evacuation routes, commercial space configuration, equipment room layout, and ventilation and drainage systems. These factors are highly integrated spatially, placing extremely high demands on the accuracy and rationality of the design. Designers first use external design software (such as AutoCAD, Rhino, or BIM tools) to create two-dimensional plan layout data for the subway station. This data includes the preliminary configuration of each functional area, the location of passageways and entrances / exits, the layout of equipment rooms, and the arrangement of public facilities. Through the design software's synchronous interface, this two-dimensional plan data is transmitted in real-time to the three-dimensional graphics processing unit in the VR visualization interactive device for the underground space layout scheme of this invention. The three-dimensional graphics processing unit converts the received two-dimensional data into a three-dimensional spatial model and performs realistic real-time rendering on the virtual reality interactive terminal. After wearing a high-resolution VR headset, designers can enter the virtual environment of the subway station and immersively explore the entire underground space. Designers can freely roam different areas of the subway station, view the layout of each functional area, assess the rationality of passenger flow, and perform detailed operations through a motion capture system, such as adjusting platform width and optimizing the placement of escalators and elevators. In the virtual environment, designers can collaborate in real time with other stakeholders in the project (such as transportation planners, fire experts, and architectural engineers) through a collaborative design communication module. Team members can simultaneously enter the virtual subway station to view the current design scheme, mark and discuss key areas, such as the accessibility of passenger evacuation routes, the rationality of equipment room layout, and whether the configuration of commercial areas meets passenger flow needs. If adjustments to the design scheme are found during the discussion, such as reconfiguring the distribution of shops in the commercial area, designers can immediately make modifications in the virtual environment. These modifications are transmitted back to the external design software in real time through the system's design software synchronization interface, ensuring that all design adjustments are accurately reflected in the original design files. Through this closed-loop design process, the VR visualization interactive device for underground space layout of this invention not only improves the efficiency of subway station design but also ensures the rationality and feasibility of the design scheme. In practical applications, this method can significantly reduce the design cycle, reduce the risk of rework due to design oversights, and ultimately achieve efficient planning and construction of subway station underground spaces.

[0065] In summary, this invention provides a VR visualization and interactive device and method for underground space layout schemes. By combining high-performance hardware and dedicated software, it achieves rapid visualization, real-time interaction, and multi-user collaboration of underground space layouts. This device not only improves the accuracy of spatial perception, enabling designers to more intuitively grasp the scale and proportions of space, but also significantly improves design efficiency and collaborative effectiveness through real-time interaction and multiple-cycle update functions. The deep integration of this invention's device with commonly used design software makes the design process smoother and more optimized, better meeting the needs of complex modern underground space design projects. Overall, this invention provides innovative technical support and solutions for the planning and design of underground spaces. Through the innovative combination of these hardware components, it achieves rapid visualization and interactive operation of underground space layout schemes, applicable to the design stages of complex underground spaces such as subway stations, underground integrated transportation hubs, and underground commercial spaces, significantly improving design efficiency and scheme quality.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An underground space layout scheme VR visualization interaction device, characterized in that, The application relates to a three-dimensional graphics processing unit and a virtual reality interaction terminal, a design software synchronization interface and a collaborative design communication module interacting with the three-dimensional graphics processing unit. The three-dimensional graphics processing unit adopts a high-performance graphics processor and a dedicated graphics acceleration chip, is used for converting two-dimensional plane layout data of underground space into a three-dimensional space model and performing real-time rendering, and is used for converting two-dimensional plane layout data of underground space into a three-dimensional space model and performing real-time rendering. The virtual reality interaction terminal is a direct interface for user experience, is integrated with the three-dimensional graphics processing unit through a low-delay wireless transmission module, supports natural interaction of the user in a simulated underground environment, and supports natural interaction of the user in a simulated underground environment. The design software synchronization interface is used for realizing data exchange with external design software, synchronizing modifications in the external design software to the three-dimensional graphics processing unit, and adapting to frequent adjustment and optimization requirements in an underground space design process. The collaborative design communication module is used for supporting real-time collaboration and communication of multiple users in a virtual environment and synchronously processing complex underground layout projects. The design software synchronization interface comprises a high-speed data conversion processor, a multi-protocol communication module, a virtual coordinate synchronization unit, a design mark synchronizer, a high-performance audio processing chip and a space audio array, and a network synchronization processor. The high-speed data conversion processor is used for capturing real-time modifications in external design software and converting the real-time modifications into a data format suitable for the three-dimensional graphics processing unit. The multi-protocol communication module supports multiple high-speed data transmission standards, ensures compatibility with different design software and low-delay data exchange, and supports multiple high-speed data transmission standards. The virtual coordinate synchronization unit is used for ensuring real-time synchronization of positions of multiple users in a virtual environment. The design mark synchronizer is used for supporting real-time sharing and highlighting of design marks in a virtual environment. The high-performance audio processing chip and the space audio array are used for realizing high-quality voice communication and directional sound restoration and enhancing a collaboration experience. The network synchronization processor adopts a special acceleration algorithm, minimizes data transmission delay and ensures consistency seen by all users in a virtual environment. The three-dimensional graphics processing unit further comprises a ray tracing processor and a texture mapping accelerator. The ray tracing processor is used for realizing realistic lighting effects including direct lighting, indirect lighting and shadow effects by simulating light source propagation.

2. The underground space layout scheme VR visualization interaction device according to claim 1, characterized in that, The texture mapping accelerator is used for quickly applying surface textures in a preset material library to a three-dimensional model, thereby enhancing reality and rendering efficiency of the model. The three-dimensional graphics processing unit adopts an Intel Core i7 processor, an NVIDIA RTX 3060 graphics card, 16GB RAM and a 512GB SSD configuration. The virtual reality interaction terminal comprises a high-resolution VR head-mounted display and a motion capture system.

3. The underground space layout scheme VR visualization interaction device according to claim 2, characterized in that, The high-resolution VR head-mounted display adopts a display system with a wide field of view and high angular resolution.

4. The subsurface space layout scheme VR visualization interaction device according to claim 1, characterized in that, The motion capture system adopts a handle operation device or a full-spectrum treadmill and is used for realizing natural and intuitive interaction of the user in a virtual environment. The virtual reality interaction terminal further comprises a haptic feedback controller, a linear resonant actuator and a pressure sensor array, simulates touch of different materials, and enhances immersion of the user. The high-speed data conversion processor supports real-time data exchange with AutoCAD, Rhino and various BIM tools.

5. The underground space layout scheme VR visualization interaction device according to claim 4, characterized in that, The multi-protocol communication module supports multiple high-speed data transmission standards including USB3.1, Thunderbolt3 and 10Gb Ethernet.

6. The subsurface space layout scheme VR visualization interaction device according to claim 1, characterized in that, ​ 7. An interaction method based on the VR visualization interaction device for underground space layout scheme according to any one of claims 1-6, characterized in that, The interaction method comprises the following steps: S1, create two-dimensional layout data in external design software, and transmit the data to a three-dimensional graphics processing unit through a design software synchronization interface; S2, convert the two-dimensional data into a three-dimensional space model by the three-dimensional graphics processing unit, and render in a virtual reality interaction terminal; S3, use the virtual reality interaction terminal, the user enters the virtual environment, interacts with the three-dimensional space model, checks and evaluates the design scheme; S4, realize real-time collaboration and communication among multiple users in the virtual environment through a collaborative design communication module, mark, discuss and modify the design scheme; S5, synchronize the design modifications made in the virtual environment back to the external design software, realize real-time feedback and optimization of the design process.

8. The method of interacting with a subsurface space layout scheme VR visualization arrangement according to claim 7, characterized in that, In step S4, multiple loop update functions are included, supporting real-time synchronization of design modifications by each user during multi-user collaboration, and reflecting these modifications in the updated three-dimensional space model, ensuring consistency and real-time of the virtual environment seen by all users.

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