Household decoration design system based on VR virtual design

Abstract

The invention discloses a home decoration design system based on VR virtual design, belongs to the technical field of home decoration design, and aims to solve the problems of poor intuition, weak interactivity, low efficiency and insufficient resource integration of an existing home design mode. Comprising a VR interaction hardware module, a virtual space construction module, a home element library module, a VR design interaction module, a rendering display module and a scheme output module. According to the invention, through VR interaction hardware, a user can roam in the VR interaction hardware through actions such as natural walking and turning around, and visually feel spatial scale, furniture proportion and light and shadow changes; through the arrangement of a multi-person cooperation unit in the VR design interaction module, a designer, a user and a construction party are supported to access a virtual space at the same time, the design order is ensured through voice real-time communication and operation authority distribution, the communication efficiency is optimized, and the user experience is improved. And the intelligent aided design unit is optimized through a style label matching algorithm, size adaptation verification and human engineering.

Description

Technical Field ,

[0006]

[0001] The present invention belongs to the technical field of home decoration design, and particularly relates to a home decoration design system based on VR virtual design. Background Art

[0002] Home decoration design is the core link connecting living needs and spatial aesthetics. Its core appeal lies in accurately conveying design intentions, efficiently integrating spatial resources, and ultimately realizing users' expectations for an "ideal home". However, the traditional home decoration design mode has long faced multiple technical bottlenecks, specifically manifested as follows:

[0003] Traditional design relies on two-dimensional CAD drawings, static three-dimensional renderings or sand table models to present design schemes. Two-dimensional drawings require users to have professional drawing-reading abilities. Ordinary users are difficult to imagine spatial scales, furniture proportions and lighting effects through lines and dimensions, often resulting in the problem of "significant deviation between the design drawing and the actual implementation effect". For example, users misjudge the furniture size and cannot place it after entering the house, or disputes arise due to the difference in the wall color presented in the renderings and the actual environment. Although static three-dimensional renderings can display local scenes, they lack the spatial roaming experience and cannot simulate the moving line feelings of people in space (such as whether the corridor width affects passage, whether the furniture at the corner hinders activities), resulting in blind spots in the practicality evaluation of design schemes.

[0004] In the traditional process, after users put forward modification requirements, designers need to readjust model parameters and render renderings in professional software and then feedback to users for confirmation. The single modification cycle often reaches 1 - 3 days. If core changes such as spatial layout and furniture styles are involved, repeated iterations are required, not only prolonging the design cycle (the average design cycle for a set of houses is 2 - 4 weeks), but also increasing ineffective labor due to asymmetric communication information (such as the deviation between the "cozy feeling" described by users and the style understood by designers). In addition, users are in a state of "passively receiving the scheme" throughout the process, and it is difficult to deeply participate in design decisions, resulting in a relatively low personalized satisfaction with the final scheme.

[0005] Home design needs to link multiple types of product resources such as furniture, household appliances, and building materials. In the traditional mode, these resources are scattered in the catalogs (product catalogs) of different suppliers, offline exhibition halls or e-commerce platforms. Designers need to manually search for matching product models, sizes and prices, and then manually enter them into the design scheme. This process is prone to "information lag" (such as products being included in the scheme but already out of production) or "parameter errors" (such as the manually input furniture size not matching the actual size), resulting in secondary adjustments when the scheme is implemented, increasing procurement costs and time costs.

[0006] Current applications of VR technology in the home furnishing sector primarily focus on "virtual display" (such as browsing pre-set model rooms through VR headsets) rather than "design interaction." While some systems support simple furniture dragging and dropping, they suffer from three major drawbacks: First, virtual space construction relies on professional operation, and ordinary users cannot independently draw floor plans; second, the furniture model library is limited in size and does not support real-time customization of materials and dimensions; and third, there is a lack of intelligent auxiliary functions (such as style matching and ergonomic verification), making it easy for users to create unreasonable designs based solely on subjective operation (such as the sofa and coffee table being too close together, affecting usability).

[0007] Therefore, a home decoration design system based on VR virtual design is needed to solve the problems of poor intuitiveness, weak interactivity, low efficiency and insufficient resource integration in existing home design methods. Summary of the Invention

[0008] The purpose of this invention is to provide a home decoration design system based on VR virtual design to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a home decoration design system based on VR virtual design, comprising:

[0010] VR interactive hardware modules are used to provide an immersive virtual environment experience and user operation input, including VR headsets, positioning sensors, interactive controllers and motion capture devices;

[0011] The virtual space construction module is used to generate a three-dimensional virtual home space model based on the floor plan data input by the user. The floor plan data includes space dimensions, wall structure, door and window positions, and pipeline layout.

[0012] The home furnishing element library module stores preset 3D home furnishing models and attribute parameters. The 3D home furnishing models include furniture, home appliances, decorative ornaments, lamps, flooring and wall decoration materials, and the attribute parameters include size, material, color, texture and price information.

[0013] The VR design interaction module connects the VR interaction hardware module, the virtual space construction module, and the home element library module. It is used to receive operation commands input by the user through the VR interaction hardware module, realize the placement, movement, rotation, scaling, replacement, and attribute parameter adjustment of the 3D home model in the virtual home space, and update the display status of the virtual home space in real time.

[0014] The rendering and display module is used to perform lighting rendering, material rendering, and environmental effect rendering on the virtual home space and its 3D home models, generating a realistic virtual scene, and supporting panoramic display, roaming browsing, and perspective switching functions.

[0015] The solution output module is used to export the virtual home design solution completed by the user into 3D model files, floor plans, rendered images, video walkthrough files, and bills of materials.

[0016] It should be noted in the solution that the VR interactive hardware module also includes a force feedback device, which is used to provide tactile feedback when the user operates the 3D home model. The tactile feedback includes collision feedback, weight simulation feedback and material tactile feedback.

[0017] It is further worth noting that the virtual space construction module supports at least one of the following methods for inputting apartment type data:

[0018] Import CAD drawings, BIM models, or 3D scan data;

[0019] Users can manually draw walls, doors, windows, and pipes in a virtual space using VR interactive hardware modules;

[0020] Call the preset apartment layout template and modify its parameters.

[0021] Furthermore, it should be noted that the home furnishing element library module also includes a model editing unit, which allows users to customize and modify the stored 3D home furnishing models, including size adjustment, component replacement, material editing, and appearance reconstruction, and supports users to upload custom 3D models to the element library.

[0022] In a preferred embodiment, the VR design interaction module further includes an intelligent auxiliary design unit, which comprises:

[0023] The style matching sub-unit recommends matching 3D home furnishing models from the home furnishing element library based on the design style selected by the user.

[0024] The size adaptation sub-unit automatically adjusts the size ratio of the recommended 3D home model or prompts for size conflicts based on the size and layout of the virtual home space.

[0025] The layout optimization sub-unit provides layout optimization suggestions for the 3D furniture model placed by the user, based on ergonomics and space utilization algorithms.

[0026] As a preferred embodiment, the VR design interaction module also includes a multi-user collaboration unit, which supports multiple users to simultaneously access the same virtual home space through their respective VR interaction hardware modules, enabling real-time voice communication, allocation of operation permissions, and synchronization of design operations.

[0027] In a preferred embodiment, the rendering and display module supports dynamic effect rendering, including:

[0028] Time-axis lighting simulation simulates the effects of natural light changes at different times of the day;

[0029] Dynamic scene interaction, simulating the dynamic effects of opening doors and windows, switching lights on and off, and operating home appliances;

[0030] The system allows for one-click switching between different environmental settings, such as rain, snow, day, and night.

[0031] As a preferred implementation, the solution output module also includes a cost accounting subunit, which automatically generates a decoration budget list based on the price information and usage of the 3D home model, and supports linked updates for budget adjustments and model replacements.

[0032] In a preferred embodiment, the system also includes a historical version management module, which records every operation performed by the user during the design process and supports version backtracking, comparison, and merging of design schemes.

[0033] In a preferred embodiment, the system also includes a device compatibility module for adapting to VR interactive hardware of different brands and models, and supporting the synchronization of virtual home design schemes to mobile terminals or web pages for viewing and lightweight editing.

[0034] Compared with existing technologies, the home decoration design system based on VR virtual design provided by the present invention has at least the following beneficial effects:

[0035] (1) This invention constructs a 1:1 scale virtual home space through VR interactive hardware. Users can roam in it through natural walking, turning and other actions, and intuitively feel the spatial scale (such as floor height and room width), furniture proportion (such as the compatibility of the bed with the bedroom) and light and shadow changes (such as the influence of window orientation on lighting). This "what you see is what you get" experience completely solves the gap between understanding traditional drawings and actual effects. For example, users can discover problems such as "the wardrobe door colliding with the bed after opening" in advance, avoiding rework later. It is estimated that it can reduce the modification cost caused by spatial perception error by about 30% to 50%.

[0036] (2) This invention's system allows users to directly manipulate virtual home elements through natural interaction methods such as gestures and voice (e.g., dragging sofas to adjust their position, rotating lamps to change their angle, and using voice commands like "change the wall to off-white"). All modifications are reflected in the virtual scene in real time, without waiting for rendering. Combined with the instant access to the model library and parameter customization functions, the time for a single design adjustment is reduced from the traditional 1-3 days to 5-10 minutes, and the entire design cycle can be compressed to 1-2 days, significantly improving design efficiency. Simultaneously, users participate in the entire design process, increasing the satisfaction of personalized needs by over 60%.

[0037] (3) This invention supports designers, users and construction parties to access the virtual space at the same time through the multi-person collaborative unit setting in the VR design interaction module, communicate in real time through voice, and ensure design order and optimize communication efficiency through operation permission allocation. In addition, the intelligent auxiliary design unit provides professional-level design guidance for non-professional users through style tag matching algorithm, size adaptation verification and ergonomic optimization, thereby reducing the design threshold.

[0038] (4) The present invention records every step of the operation through the historical version management module, supports "version backtracking", "difference comparison" and "element merging", and prevents the loss of the solution due to misoperation; the device compatibility module is compatible with mainstream VR headsets and mobile terminals, and users can fine design on the VR terminal and view or make simple adjustments on the mobile terminal to meet the usage needs of different scenarios. Attached Figure Description

[0039] Figure 1 This is a structural block diagram of a VR-based home decoration design system according to the present invention. Detailed Implementation

[0040] The present invention will be further described below with reference to embodiments.

[0041] Please see Figure 1 This invention provides a home decoration design system based on VR virtual design, comprising:

[0042] VR interactive hardware modules: provide immersive experiences and operation inputs, including VR headsets, positioning sensors, interactive controllers, and motion capture devices, enabling users to perform design operations through natural movements in a virtual environment.

[0043] Furthermore, it is worth noting that the VR interactive hardware module also includes a force feedback device, which provides tactile feedback when the user operates the 3D home model. The tactile feedback includes collision feedback, weight simulation feedback, and material tactile feedback.

[0044] Specifically, after the user wears the VR headset, the positioning sensor captures the position of the head and the controller in real time to build six degrees of freedom (6DoF) motion tracking; the interactive controller receives user operations (such as selection, dragging, and rotation) through button and posture sensors, the motion capture glove recognizes finger movements to achieve fine operation (such as adjusting the angle of the lamp); the force feedback device provides resistance feedback when the user places furniture to simulate the feeling of placing furniture of different weights.

[0045] Virtual Space Construction Module: Generates a 3D virtual home space based on user-input floor plan data, accurately reproducing space dimensions, wall structure, and door and window positions, providing a basic environment for subsequent design.

[0046] Furthermore, it is worth noting that the virtual space construction module supports at least one of the following methods for inputting apartment type data:

[0047] Import CAD drawings, BIM models, or 3D scan data;

[0048] Users can manually draw walls, doors, windows, and pipes in a virtual space using VR interactive hardware modules;

[0049] Call the preset apartment layout template and modify its parameters.

[0050] Specifically, users can select the "Import Floor Plan" function to upload a CAD floor plan, and the system will automatically parse the drawing to generate a 3D wall model. If no drawing can be imported, users can "draw" the walls in the virtual space using the handle (setting the start point, end point, and height), and add doors and windows through the menu (selecting the type, size, and location). The system supports 2D / 3D view switching, and users can adjust the size parameters in the 2D plane while the 3D view is updated synchronously in real time.

[0051] Home Furnishing Element Library Module: Stores a massive number of 3D home furnishing models (furniture, appliances, decorations, etc.) and attribute parameters, supports custom editing and uploading of models, and enables efficient management and reuse of home furnishing elements.

[0052] Furthermore, it is worth noting that the home furnishing element library module also includes a model editing unit, which allows users to customize and modify the stored 3D home furnishing models, including size adjustment, component replacement, material editing, and appearance reconstruction, and supports users to upload custom 3D models to the element library.

[0053] Specifically, the element library is divided into functional areas (living room, bedroom, kitchen, etc.) and style categories (modern, Nordic, Chinese, etc.). Users can quickly search using voice commands (such as "search for Nordic style sofa"). After selecting a furniture model, users can view its size, material, price, and supplier information. Clicking "edit" allows users to adjust the size (such as changing the sofa length from 2m to 2.2m) and change the fabric (such as changing from linen to leather). Designers can create custom models (such as irregularly shaped coffee tables) using the model editing tool and save them to their personal library.

[0054] VR Design Interaction Module: The core module receives user operation commands, enabling the placement, adjustment, and attribute modification of home furnishing models. It also enhances design rationality through intelligent auxiliary design units (style matching, size adaptation, and layout optimization), while supporting multi-person collaborative design.

[0055] Furthermore, it is worth noting that the VR design interaction module also includes an intelligent assisted design unit, which includes:

[0056] The style matching sub-unit recommends matching 3D home furnishing models from the home furnishing element library based on the design style selected by the user.

[0057] The size adaptation sub-unit automatically adjusts the size ratio of the recommended 3D home model or prompts for size conflicts based on the size and layout of the virtual home space.

[0058] The layout optimization sub-unit provides layout optimization suggestions for the 3D furniture model placed by the user, based on ergonomics and space utilization algorithms.

[0059] Furthermore, it is worth noting that the VR design interaction module also includes a multi-user collaboration unit, which supports multiple users to simultaneously access the same virtual home space through their respective VR interaction hardware modules, enabling real-time voice communication, allocation of operation permissions, and synchronization of design operations.

[0060] Specifically, the process includes the following steps:

[0061] Furniture Placement: Users "grab" a sofa model from the element library and move it to the virtual living room using the handle. The system automatically snaps to the ground and displays a grid to assist in positioning. If the sofa is too close to a wall, a distance prompt is triggered (e.g., "30cm from the wall, meets the passage standard"). Smart Recommendations: After the user selects the "Modern Minimalist" style, the system recommends matching coffee tables, lamps, and decorative paintings, and displays the shadows of the recommended locations in the virtual space.

[0062] Multi-person collaborative unit: Designers invite users to join the design session. Users access the system via a mobile VR headset, and designers guide users to adjust furniture positions via voice. The operations of both parties are synchronized in real time.

[0063] Rendering and Display Module: Generates realistic virtual scenes through lighting, material, and environment rendering technologies, supporting panoramic display, roaming, and dynamic effect simulation (such as lighting changes and home appliance operation), enhancing the presentation effect of the solution.

[0064] Furthermore, it is worth noting that the rendering and display module supports dynamic effect rendering, including: timeline lighting simulation, simulating the changes in natural light at different times of the day; dynamic scene interaction, simulating the dynamic effects of opening doors and windows, switching lights on and off, and operating home appliances; and environmental atmosphere switching, supporting one-click switching of environmental scenes such as rain, snow, day and night.

[0065] Specifically, it includes:

[0066] Real-time lighting: The system simulates the angle of sunlight at 10 a.m. and calculates the reflection and shadow effects on the wall through a global lighting algorithm. Users can drag the timeline to view the changes in lighting from sunrise to sunset.

[0067] Dynamic Walkthrough: When users select the "Automatic Walkthrough" mode, the system displays the design effect according to a preset path (such as from the entrance to the living room and then to the bedroom), and supports pausing and adjusting the view.

[0068] Atmosphere Switching: Switch to "Rainy Day" mode with one click. The windows will display raindrop effects, and the indoor lights will automatically brighten to create the corresponding atmosphere.

[0069] Solution Output Module: Exports design solutions into various file formats.

[0070] Furthermore, it is worth noting that the solution output module also includes a cost accounting subunit, which automatically generates a decoration budget list based on the price information and usage of the 3D home model, and supports linked updates for budget adjustments and model replacements.

[0071] Specifically, after completing the design, the user clicks "Output Scheme," and the system generates a PDF quotation (including furniture models, quantities, unit prices, and total prices), CAD construction drawings, a 360° panoramic rendering, and a 5-minute walkthrough video. If the user adjusts a furniture model, the quotation is updated in real time, and a message is displayed that "the budget has been reduced by 500 yuan after the replacement." The output files can be sent via email or saved to the cloud for easy sharing with the construction team.

[0072] In addition, the system also includes a historical version management module (supporting version rollback) and a device compatibility module (adapting to multiple terminals), improving the system's usability and flexibility.

[0073] Specifically, the system automatically saves the design version every 30 minutes. Users can view the differences between "Version 1 (10:00)" and "Version 2 (11:30)", choose to go back to a certain version or merge design elements from different versions. Through the device compatibility module, it is used to adapt to VR interactive hardware of different brands and models, and supports synchronizing the virtual home design scheme to mobile terminals or web pages for viewing and lightweight editing.

[0074] This solution has the following workflow: After starting the system, the user first creates a basic environment through the virtual space construction module—CAD drawings, BIM models, or 3D scan data can be imported to quickly generate floor plans. Users can also manually draw walls, doors, windows, and label pipelines using VR controllers, or modify parameters using preset templates. Then, in the design phase, the user wears a VR headset and uses interactive controllers to retrieve 3D models of furniture, appliances, etc., from the home element library. In the virtual space, the user performs operations such as placement, movement, rotation, and scaling, while simultaneously adjusting the model's material, color, and other attributes in real time. The intelligent auxiliary design unit provides style matching recommendations, size conflict warnings, and ergonomic layouts. The bureau recommends the following: During the design process, multiple users should be able to access the system via their respective VR devices, communicate in real-time via voice, and collaborate on operations. The historical version management module should automatically record each step of the operation for easy review or comparison. After the design is completed, the rendering and display module should render the scene's lighting, materials, and environment, simulating effects such as day and night lighting changes and the dynamic operation of home appliances. Users can preview the scene immersively from a roaming or panoramic perspective. Finally, the solution output module should export files such as 3D models, floor plans, rendered images, and roaming videos, while simultaneously generating a bill of materials and budget sheet containing prices and quantities. It should also support the linked updates of the budget and model replacement, and the output content can be synchronized to mobile terminals or web pages for multiple parties to view.

[0075] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0076] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A home furnishing design system based on VR virtual design, characterized in that: The application relates to a virtual reality (VR) home design system, comprising: a VR interaction hardware module for providing immersive virtual environment experience and user operation input, including a VR headset, positioning sensors, interaction handles, and motion capture devices; a virtual space construction module for generating a three-dimensional virtual home space model according to user-inputted home layout data, including space dimensions, wall structures, door and window positions, and pipeline layouts; a home element library module for storing preset three-dimensional home models and attribute parameters, including furniture, home appliances, decorative ornaments, lamps, flooring, and wall decoration materials, and attribute parameters including dimensions, materials, colors, textures, and price information; a VR design interaction module connected to the VR interaction hardware module, the virtual space construction module, and the home element library module, for receiving user operation instructions inputted through the VR interaction hardware module, implementing placement, movement, rotation, scaling, replacement, and attribute parameter adjustment of three-dimensional home models in the virtual home space, and updating the display state of the virtual home space in real time; a rendering and display module for performing light rendering, material rendering, and environmental effect rendering on the virtual home space and the three-dimensional home models therein, generating a virtual scene with realistic effects, and supporting panoramic display, roaming browsing, and view angle switching functions; a scheme output module for exporting a virtual home design scheme completed by a user as a three-dimensional model file, a plan layout diagram, a rendering effect diagram, a video roaming file, and a bill of materials.

2. The home decoration design system based on VR virtual design according to claim 1, characterized in that: The VR interaction hardware module further comprises a force feedback device for providing tactile feedback when a user operates a three-dimensional home model, including collision feedback, weight simulation feedback, and material texture feedback. 3.The home decoration design system based on VR virtual design according to claim 1, characterized in that: The virtual space construction module supports at least one of the following home layout data input methods: importing CAD drawings, BIM models, or three-dimensional scanning data; manually drawing walls, doors, windows, and pipelines in the virtual space through the VR interaction hardware module; calling a preset home layout template and performing parameterized modification.

4. The home decoration design system based on VR virtual design according to claim 1, characterized in that: The home element library module further comprises a model editing unit for allowing a user to perform customized modification on the stored three-dimensional home models, including size adjustment, component replacement, material editing, and appearance reconstruction, and supporting user uploading of customized three-dimensional models to the element library.

5. The home decoration design system based on VR virtual design according to claim 1, characterized in that: The VR design interaction module further comprises an intelligent auxiliary design unit, which comprises: a style matching subunit for recommending matching three-dimensional home models from the home element library according to a user-selected design style; a size adaptation subunit for automatically adjusting the size ratio of recommended three-dimensional home models or prompting size conflicts according to the size and layout of the virtual home space; a layout optimization subunit for providing layout optimization suggestions for a user-placed three-dimensional home model based on ergonomics and space utilization algorithms.

6. The home decoration design system based on VR virtual design according to claim 1, characterized in that: The VR design interaction module further comprises a multi-person collaboration unit, supporting multiple users to simultaneously access the same virtual home space through respective VR interaction hardware modules, realizing real-time voice communication, operation permission allocation, and design operation synchronization.

7. The home decoration design system based on VR virtual design according to claim 1, characterized in that: The rendering and display module supports dynamic effect rendering, including: time-axis light simulation for simulating natural light variation effects at different times of a day; Dynamic scene interaction, simulating the dynamic effects of opening doors, windows, light switches and home appliance operation; Environmental atmosphere switching, supporting one-key switching of environmental scenes such as rain, snow, day and night. 8.The home decoration design system based on VR virtual design according to claim 1, characterized in that: The scheme output module further includes a cost accounting subunit that automatically generates a decoration budget list according to the price information and usage of the three-dimensional home model, and supports the linkage update of budget adjustment and model replacement. 9.The home decoration design system based on VR virtual design according to claim 1, characterized in that: The system further includes a historical version management module for recording each operation in the user design process, supporting version backtracking, comparison and merging functions of the design scheme. 10.The home decoration design system based on VR virtual design according to claim 1, characterized in that: The system further includes a device compatibility module for adapting different brands and models of VR interaction hardware, and supporting synchronization of virtual home design schemes to mobile terminals or web pages for viewing and lightweight editing.

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