Digital protection and display method and system for national architectural cultural heritage

Abstract

The invention belongs to the technical field of cultural heritage digital protection, and discloses a national building cultural heritage digital protection and display method and system, and the method comprises the steps: rapidly and efficiently obtaining building data through an unmanned plane inclined scanning technology, generating a model through M3D, and carrying out the restoration through a mature BIM technology, the historical literature, the space structure, the material color, the building symbols and the like of the ethnic building are reviewed in the digital virtual space from the perspective of time and space, so that the digital twin ethnic building regional system is expected to be realized, and the digital twin ethnic building regional system is practically applied to building management, cultural transmission, industrial upgrading and the like. By utilizing new information technologies such as cloud computing and big data, high integration of a protection technology and a display technology is realized, the authenticity of a digital model is continuously promoted through a brain hole experiment, a Guizhou ethnic architectural cultural heritage digital twinning system is constructed, and the application range of subject research is expanded.

Description

Technical Field

[0001] The present invention belongs to the technical field of digital protection of cultural heritage, and particularly relates to a method and system for digital protection and display of ethnic architectural cultural heritage. Background Art

[0002] There are 18 ethnic groups living in Guizhou Province. Each ethnic group conforms to the law of natural development and presents diverse ethnic architectural styles, which have important historical, cultural, economic and social values. However, some ethnic architectural cultural heritages face problems such as incomplete statistics, unscientific maintenance and inadequate repair, and there is an urgent need for rescue protection. With the continuous development of science and technology, digital twin provides an important idea for the protection and display of ethnic architectural cultural heritage in Guizhou, which can not only preserve ethnic architectural culture in the world, but also make it generate modern value.

[0003] Through the above analysis, the problems and defects existing in the prior art are as follows:

[0004] Some ethnic architectural cultural heritages face problems such as incomplete statistics, unscientific maintenance and inadequate repair, and there is an urgent need for rescue protection. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a method for digital protection and display of ethnic architectural cultural heritage.

[0006] The present invention is implemented as follows. A method for digital protection and display of ethnic architectural cultural heritage includes:

[0007] Step 1, forming an ethnic architectural space theory through text analysis and field investigation to endow ethnic architectural culture with vitality;

[0008] Step 2, constructing a 3D model of ethnic architectural cultural heritage based on the latest generation of data acquisition technology as a basic database for protection and display, carrying out building protection work through a cascaded neural network, and carrying out building display work through digital media art display technology;

[0009] Step 3, using new information technologies such as cloud computing and big data to highly integrate protection technology and display technology, continuously promoting the authenticity of the digital model through brainstorming experiments, constructing a digital twin system of ethnic architectural cultural heritage, and expanding the application scope of the subject research.

[0010] Furthermore, the data acquisition technology method:

[0011] Through technologies such as drone detection, aerial photography, 3D laser scanning, image shooting and collection, a 1:1 digital model is established. The model is refined and corrected through BIM to clarify the space, structure, function, and decoration of the digital building. The attachment of materials and textures is carried out through Model Painter technology, and a digital platform is initially constructed.

[0012] Furthermore, the method for highly integrating protection technology and display technology by using new information technologies such as cloud computing and big data is as follows:

[0013] (1) Integration of drone oblique photography technology and real scene 3D reconstruction technology;

[0014] (2) Integration of urban / building space informatization technology and cascaded neural network technology;

[0015] (3) Integration of digital media art display technology;

[0016] (4) Integration of data visualization technology and multi-agent simulation technology.

[0017] Furthermore, the integration of drone oblique photography technology and real scene 3D reconstruction technology:

[0018] Based on video image acquisition technology, multiple surveying and mapping results such as DOM, DSM, real scene 3D model, and digital line drawing are obtained through lightweight drone oblique photography.

[0019] Furthermore, the integration of urban / building space informatization technology and cascaded neural network technology:

[0020] Through geographic information system and building information modeling technology, data resources of transportation road networks and facility attributes of ethnic buildings are obtained.

[0021] Furthermore, the integration of data visualization technology and multi-agent simulation technology:

[0022] Through the spatio-temporal analysis and simulation data of ethnic building cultural heritage, a technology integration based on time and space dimensions is formed. The data analysis of the time flow of ethnic building collection is visualized by using visualization tools of ArcGIS and Visual Studio software. The historical evolution data of the building form is output as image and video visualization information. The dynamic spatial relationship between the observer and the building space is simulated and analyzed by computer programming for the spatial movement and environmental behavior of the observer in the virtual space system; through spatio-temporal changes, a digital twin system of ethnic building cultural heritage is constructed, a digital mapping system of the equipment system that depends on each other is established, and a quantitative evaluation system for ethnic building space is studied.

[0023] Another object of the present invention is to provide a digital protection and display system for ethnic building cultural heritage, including:

[0024] An analysis module, which is used to form the ethnic architectural space theory through text analysis and field research, and endow the ethnic architectural culture with vitality;

[0025] A construction module, which is used to build a 3D model of ethnic architectural cultural heritage based on the latest generation of data acquisition technology as a basic database for protection and display, carry out building protection work through cascaded neural networks, and carry out building display work through digital media art display technology;

[0026] An integration module, which is used to utilize new information technologies such as cloud computing and big data to highly integrate protection technologies and display technologies, continuously promote the authenticity of digital models through brainstorming experiments, build a digital twin system for ethnic architectural cultural heritage, and expand the application scope of the subject research.

[0027] Another object of the present invention is to provide a computer device, which includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor executes the steps of the digital protection and display method for ethnic architectural cultural heritage.

[0028] Another object of the present invention is to provide a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the digital protection and display method for ethnic architectural cultural heritage.

[0029] Another object of the present invention is to provide an information data processing terminal, which is used to implement the digital protection and display system for ethnic architectural cultural heritage.

[0030] Combined with the above technical solutions and solved technical problems, the advantages and positive effects of the technical solution to be protected by the present invention are as follows:

[0031] First, combine multiple spatial information mining technologies to complement each other's advantages, make up for the deficiencies in the research of traditional data acquisition technologies in aspects such as digital construction of large-scale building spaces, building detail collection, and construction digital model construction efficiency, and further improve the path and method of digital information technology for ethnic architectural cultural heritage in Guizhou.

[0032] Increase the time dimension of the research on ethnic architectural cultural heritage in Guizhou, introduce the research perspective and research method of spatio-temporal comparison of building spaces, explore the interaction mechanism between people and buildings at different spatio-temporal levels, which is conducive to fully excavating the historical context and cultural connotations of ethnic architectural cultural heritage in Guizhou, and greatly enriches the research perspective.

[0033] Conceive a variety of interdisciplinary technology integration solutions, including the integration of drone oblique photography technology and real scene three-dimensional reconstruction technology, the integration of urban / architectural space informatization technology and cascaded neural network technology, the integration of digital media art display technology, the integration of data visualization technology and multi-agent simulation technology, etc. At the same time, overall consider cultural connotations, environmental elements, human factor elements, etc., to provide a scientific solution for deeply exploring the cultural connotations of Guizhou ethnic architecture.

[0034] Deeply explore the application significance and scope of the research results. It can not only meet the basic goals of invention research, but also introduce the digital twin research of Guizhou ethnic architectural cultural heritage, which can provide necessary scientific basis for related fields such as heritage protection, resilience improvement, urban and rural management, industrial upgrading, real-time monitoring, etc., and expand the connotation of the research.

[0035] Second, as the creative auxiliary evidence of the claims of the present invention, it is also reflected in the following important aspects:

[0036] (1) The expected benefits and commercial values after the transformation of the technical solution of the present invention are:

[0037] ① Based on data collection means such as drone oblique photography technology and three-dimensional laser scanning technology, through BIM digital repair and correction data methods, construct a digital database of Guizhou ethnic architectural cultural heritage, and improve the theoretical system of Guizhou ethnic architectural cultural heritage;

[0038] ② Based on cascaded neural network processing, conduct defect identification, defect 3D shape generation, and crack texture trimming on the digital model, establish a digital repair model of Guizhou ethnic architecture, generate a repair plan for Guizhou ethnic architecture, and provide a more refined scientific basis for the physical repair of Guizhou ethnic architecture;

[0039] ③ Based on digital media art display technology, enrich the display forms of Guizhou ethnic architectural cultural heritage, greatly enhance the human experience in digital display, and realize the application of Guizhou ethnic architectural cultural heritage in the upgrading of cultural and tourism industries and the birth of new industries;

[0040] ④ Based on digital twin technology, expand the application scope of Guizhou ethnic architectural digital technology, provide further upgrade possibilities for aspects such as improving building resilience, disaster prevention and mitigation, improving management capabilities and response timeliness, provide richer paths for Guizhou ethnic culture to go global, and provide more convenient means for carrying out research on the context of ethnic architecture.

[0041] It is achieved through the following quantitative indicators:

[0042] ① Publish 5 - 10 high-level academic papers or international conference papers;

[0043] ② Host / participate in 1 international academic exchange activity, and host 1 international academic lecture / seminar;

[0044] ③ Apply for 1 patent on the data collection technology of Guizhou ethnic architectural cultural heritage;

[0045] ④ Apply for 1 patent on the technology integration of the protection and display of Guizhou ethnic architectural cultural heritage;

[0046] ⑤ Establish a regional digital twin information database for Guizhou ethnic architecture, and plan to develop 1 intelligent digital twin ethnic architecture application software;

[0047] ⑥ Establish a close cooperation relationship with the protection areas of ethnic architectural cultural heritage, apply the achievements to the local cultural and tourism industry, promote industrial upgrading, enhance the popularity of Guizhou ethnic architecture, and display through new media channels, with the expected attention increase of more than 30%;

[0048] ⑦ It is expected to train 20 students (10 undergraduates and 10 master students respectively) through the project. Description of the Drawings

[0049] Figure 1 is the flowchart of the digital protection and display method for ethnic architectural cultural heritage provided by the embodiments of the present invention.

[0050] Figure 2 is the structural block diagram of the digital protection and display system for ethnic architectural cultural heritage provided by the embodiments of the present invention.

[0051] Figure 3 is the task requirement analysis diagram provided by the embodiments of the present invention.

[0052] Figure 4 is the research and development task and content diagram provided by the embodiments of the present invention.

[0053] Figure 5 is the research and development technical path diagram provided by the embodiments of the present invention. Detailed Embodiments

[0054] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0055] Through text analysis and field investigation methods, collect information such as historical documents, architectural layouts and cultural symbols of ethnic architecture, and construct a spatial theoretical model of ethnic architecture from the aspects of cultural background, historical context and spatial characteristics. This step not only endows the ethnic architectural cultural heritage with vitality, but also provides a theoretical basis and guidance for subsequent digital protection and display, ensuring that the digital work can reflect the cultural connotation and architectural characteristics.

[0056] Based on the latest generation of data acquisition technologies, such as drone oblique scanning, LiDAR (Light Detection and Ranging), and high-precision photogrammetry, the appearance and structural data of ethnic buildings can be obtained quickly and efficiently. The collected point cloud and image data are used to generate 3D models through M3D technology, and combined with Building Information Modeling (BIM) technology to repair the structure, materials, and details of historical buildings. This process not only preserves the original information of the buildings but also digitally restores the damaged or lost parts, laying a foundation for the long-term preservation and research of ethnic building cultural heritage.

[0057] Use cascaded neural networks to analyze the digital models of ethnic buildings, carry out protection work such as building disease detection and stress analysis, and at the same time conduct building displays through digital media art technology. The display work includes technologies such as virtual reality (VR), augmented reality (AR), and holographic imaging, vividly presenting the spatial structure and cultural connotations of the buildings, and enhancing the public's awareness and participation. The combination of protection and display technologies can not only achieve the digital preservation of architectural heritage but also contribute to cultural dissemination and inheritance.

[0058] Integrate multi-source data of ethnic building heritage through cloud computing technology, and use big data analysis to explore the correlation between architectural culture and historical information. Build a digital twin system of ethnic buildings, enabling the complete reproduction of the historical context, spatial structure, material colors, and cultural symbols of the buildings in the virtual space. At the same time, this digital twin system can update the building protection status and display content in real time, forming a dynamic and continuously optimized digital ecosystem.

[0059] Verify and improve the authenticity of digital models through brainstorming experiments and innovative technological explorations. For example, optimize the detailed performance in the model through supplementary research on historical documents and detailed analysis of on-site ruins; combine artificial intelligence algorithms to simulate materials, light and shadow, and dynamic environments to ensure that the digital model is closer to the real building. This not only achieves high-precision restoration of the model but also enhances its practical application value in protection and display.

[0060] Based on the digital twin ethnic building regional system, it has extensive applications in the fields of building management, cultural dissemination, and industrial upgrading. In terms of building management, digital models can be used for building maintenance, renovation planning, and disease prediction; in terms of cultural dissemination, public awareness and interest in ethnic building culture can be enhanced through online virtual displays and offline interactive experiences; in terms of industrial upgrading, by combining with tourism, education, and digital creative industries, it promotes the commercialization and innovative development of ethnic building cultural heritage, endowing it with stronger social value and economic potential.

[0061] As Figure 1 shown, the method for digital protection and display of ethnic building cultural heritage provided by the embodiments of the present invention includes the following steps:

[0062] S101. Form a national architectural space theory through text analysis and field research, endowing national architecture with cultural vitality;

[0063] S102. Build a 3D model of national architectural cultural heritage based on the latest generation of data acquisition technology as the basic database for protection and display. Carry out building protection work through cascaded neural networks and building display work through digital media art display technology;

[0064] S103. Utilize new information technologies such as cloud computing and big data to highly integrate protection technology and display technology. Continuously promote the authenticity of the digital model through brainstorming experiments, build a digital twin system for national architectural cultural heritage, and expand the application scope of the research project.

[0065] The data acquisition technology method provided by the embodiment of the present invention:

[0066] Establish a 1:1 digital model through means of drone detection and aerial photography, three-dimensional laser scanning, image shooting and collection technologies. Refine and correct the model through BIM, clarify the space, structure, function, and decoration of the digital building, and attach materials and textures through Model Painter technology to initially build a digital platform.

[0067] The method for highly integrating protection technology and display technology by utilizing new information technologies such as cloud computing and big data provided by the embodiment of the present invention is as follows:

[0068] (1) Integration of drone oblique photography technology and real scene three-dimensional reconstruction technology;

[0069] (2) Integration of urban / building space informatization technology and cascaded neural network technology;

[0070] (3) Integration of digital media art display technology;

[0071] (4) Integration of data visualization technology and multi-agent simulation technology.

[0072] The integration of drone oblique photography technology and real scene three-dimensional reconstruction technology provided by the embodiment of the present invention:

[0073] Based on video image acquisition technology, obtain various surveying and mapping results such as DOM, DSM, real scene three-dimensional model, and digital line drawing through lightweight drone oblique photography.

[0074] The integration of urban / building space informatization technology and cascaded neural network technology provided by the embodiment of the present invention:

[0075] Obtain data resources of the transportation road network and facility attributes of national architecture through geographic information system and building information modeling technology.

[0076] Integration of data visualization technology and multi-agent simulation technology provided by the embodiments of the present invention:

[0077] Through the spatio-temporal analysis and simulation data of ethnic architectural cultural heritage, a technology integration based on time and space dimensions is formed. Using the visualization tools of ArcGIS and Visual Studio software to analyze the data of the time flow of ethnic architecture collection, and outputting the historical evolution data of the building form into image and video visualization information. Through computer programming, the spatial movement and environmental behavior of observers in the virtual space system are simulated to analyze the dynamic spatial relationship between observers and the building space; through spatio-temporal changes, a digital twin system of ethnic architectural cultural heritage is constructed, a digital mapping system of the equipment system that depends on each other is established, and a quantitative evaluation system for ethnic architectural space is studied.

[0078] As Figure 2 shown, a digital protection and display system for ethnic architectural cultural heritage provided by the embodiments of the present invention includes:

[0079] An analysis module for forming a theory of ethnic architectural space through text analysis and field research, and endowing ethnic architectural culture with vitality;

[0080] A construction module for constructing a 3D model of ethnic architectural cultural heritage based on the latest generation of data collection technology, as a basic database for protection and display, carrying out building protection work through a cascaded neural network, and carrying out building display work through digital media art display technology;

[0081] An integration module for using new information technologies such as cloud computing and big data to highly integrate protection technology and display technology, continuously promoting the authenticity of the digital model through brainstorming experiments, constructing a digital twin system of ethnic architectural cultural heritage, and expanding the application scope of the research topic.

[0082] The development of the integrated technology for the digital protection and display of Guizhou ethnic architectural cultural heritage forms a multi-dimensional and cross-level interaction effect and mapping relationship for the rescue protection and display of buildings, and constructs a digital twin integration platform. It is implemented through three phased goals: Goal 1, constructing a digital platform; Goal 2: constructing a display platform; Goal 3: initially forming a digital twin system of Guizhou ethnic architectural cultural heritage.

[0083] The present invention will logically analyze the tasks layer by layer according to the "physical needs - non-physical needs - stimulating new vitality needs"( Figure 3 shown):

[0084] ① Physical task requirements: Solve the problem of the rescue and protection of ethnic architectural heritage, promote the high-quality development of the cultural and tourism industry, and achieve the integration and innovation of digital protection technology and display technology. The main purpose of this invention's task research is the development and application of digital technology for individual buildings. The task requirements of this invention are the technical goals of the invention research, the logical starting point of the invention research, and provide the necessary basic data for the invention research. It is carried out through on-site research and visits. The research needs to explore the cultural connotations behind the buildings and the cultural connotations they carry, and clarify that "the technology means not only repairs history, but more importantly, inherits the cultural connotations behind the buildings". Through digital media display, it stimulates the social awareness of ethnic architecture protection.

[0085] ② Non-physical task requirements: Solve the problem of insufficient inheritance and innovation of ethnic architectural context, promote the green development of ethnic architectural culture, and explore the new era connotations of ethnic architectural culture. The main purpose of this invention's task research is the expansion of the application of digital technology for individual buildings, mainly carried out according to the time and space dimensions: on the one hand, taking the time horizontal axis as the reference system, the construction methods, ethnic symbols, and the connection forms of production, life, and ecological spaces of the same ethnic building in different eras are conducive to forming a comparison across time dimensions; on the other hand, taking the space axis as the reference system, the integration process of architectural forms generated by different ethnic groups under different geographical environments, climates, and production methods makes the research more intuitive and in-depth. The task requirements of this invention are the social goals of the invention research. By using artificial intelligence recognition to explore the process of ethnic culture inheritance and ethnic culture integration, it is an in-depth study of the innovative development of ethnic architectural culture and the cultural cornerstone for the green development of newly built ethnic buildings. Through the M3D platform technology, the digital reconstruction of non-existent ethnic buildings can be completed, which can fully display the development process of Guizhou ethnic architecture and is of great significance for the reasonable planning and design of new ethnic blocks and buildings.

[0086] ③Demand for stimulating new vitality: Solve the problem that the digital technology of Guizhou ethnic architecture has not been systematized and institutionalized, promote the realization of the digital twin system of Guizhou ethnic architecture, and give birth to new industries, new businesses and new business forms. The research theme of this invention is the integrated application of the digital technology of individual Guizhou ethnic architecture, forming a systematic research on ethnic architecture. By constructing a networked digital protection system to provide full-cycle protection technical support for early warning, feedback and repair, a provincial ethnic digital twin database based on the conditions of Guizhou Province is formed, which is not only an important basis for ethnic architecture protection, but also an ethnic architecture cultural heritage database. It is integrated with the big data industry in Guizhou Province to give birth to new industries under digital technology and contribute to the all-round development of the economic society. The demand for this invention task is the development goal of the invention research. Digital twin is the high-order integration of the digital protection technology and display technology of ethnic architecture cultural heritage, which is the ultimate goal of this invention research. The digital platform and the display platform are deeply integrated through big data technologies such as cloud computing, and finally a digital twin system with functions such as ethnic architecture cultural heritage protection, display, inheritance, management and development, and real-time monitoring and real-time feedback is formed, and it is deeply integrated with other industries to form a new production industry with Guizhou ethnic characteristics.

[0087] The present invention achieves the technical development goal by solving three key problems. Each key problem is carried out according to four research modules and forms a research closed-loop to test the effectiveness of the research ( Figure 4 as shown).

[0088] ①One of the research and development tasks: Research and development of the digital protection technology for Guizhou ethnic architecture cultural heritage, construct a virtual space platform for Guizhou ethnic architecture cultural heritage, and carry out rescue digital restoration.

[0089] ②Two of the research and development tasks: Research and development of the digital display technology for Guizhou ethnic architecture cultural heritage, construct a virtual display platform for Guizhou ethnic architecture cultural heritage, and carry out research and development of digital media art display technology.

[0090] ③Three of the research and development tasks: Research and development of the digital twin information integration technology for Guizhou ethnic architecture cultural heritage, and expand information functions.

[0091] The main research and development path of the present invention is as follows: First, through technical means such as drone detection and aerial photography, 3D laser scanning, image shooting and collection, etc., a 1:1 digital model is established. The model is refined and corrected through BIM to clarify the space, structure, function, decoration, etc. of the digital building. The attachment of materials and textures is carried out through Model Painter technology to initially construct a digital platform. Second, based on the digital platform, through a series of cascaded neural network processes using deep learning networks and models such as RNN and GAN, defect identification, defect 3D shape generation, and crack texture repair are carried out on ethnic buildings to generate a repair plan for ethnic buildings. Third, based on the digital platform, natural factors such as geography, climate, and environment in the building area are simulated and integrated with technologies such as immersive space, AR augmented reality, and VR virtual reality to form a display platform. Fourth, a digital twin system of Guizhou ethnic buildings is constructed to actively promote cultural heritage management and resilience enhancement, and to promote the emergence of new business forms, new industries, and new commerce, thereby promoting economic and social development. The specific content is as follows:

[0092] The research content of the present invention is the cultural benefit research of ethnic buildings:

[0093] Module 1 - Spatial theory research of Guizhou ethnic buildings. Through on-site research, Python text crawling, literature analysis, etc., master the historical context of Guizhou ethnic buildings. Intend to conduct in-depth research on representative ethnic buildings such as Wenchang Pavilion, Jiaxiu Tower, Wuchuan Gelao buildings, Xijiang Qianhu Miao Village buildings, and Kaili Xiasi Ancient Town from aspects such as time and space, ecology, climate, environment, and residents' production and living methods to form an ethnic building spatial theory;

[0094] Module 2 - Research on real-scene 3D reconstruction technology of Guizhou ethnic buildings. Conduct drone oblique photography scanning on the selected objects, and at the same time conduct 3D laser scanning on key areas and buildings to continuously enhance the accuracy, precision, and fineness of the digital model and construct a virtual space for ethnic building culture;

[0095] Module 3 - Research on the construction of Guizhou ethnic building platform. On the basis of the spatial research in Module 2, further refine the digital model, integrate the content of Module 1, and introduce building elements such as structure, material, function, and decoration;

[0096] Module 4 - Research and development of digital model repair and physical repair technology for Guizhou ethnic buildings. Use ArcGIS and BIM technologies to improve the ethnic building environment and road network to the virtual space platform, repair and improve the existing platform. At the same time, use cascaded neural networks to identify defects, generate defect 3D shapes, and repair crack textures on the digital model of ethnic buildings to generate a repair plan for ethnic buildings.

[0097] The research content of the present invention is the economic benefit research of ethnic buildings:

[0098] Module 5 - Feedback and feedback research on virtual space of ethnic architecture in Guizhou. Through key interviews, questionnaires and other research methods, we conducted surveys on different groups of people to study the differences in the perception of physical space and virtual space, and continuously improve the real perception of the model;

[0099] Module 6 - Construction of digital display platform for ethnic architecture in Guizhou, introducing environmental, sound, light and shadow technologies, integrating cutting-edge digital media art display technologies to explore the display of ethnic architectural cultural heritage in Guizhou;

[0100] Module 7 - Research on the construction of a virtual space display platform for ethnic architecture in Guizhou. Based on Module 6, the optimal display method is selected through comparison and human perception experiments (intended application of EEG experiments) to build a display platform for ethnic architecture in Guizhou.

[0101] Module 8 - Guidance on the Practice of Digital Protection and Display Platform for Ethnic Architecture in Guizhou and Research on the Establishment of Standards. Based on Modules 1-7, theoretical research on practical guidance for the restoration, protection and display of ethnic architecture is conducted, and constructive opinions on relevant standards are given using relevant experimental data. Research paths and methods are continuously optimized, and research objects are tried to be expanded, which is conducive to conducting scientific research at a deeper level and in a wider range of fields.

[0102] The research content of this invention is the study of the social benefits of ethnic architecture. On the basis of the display platform, it integrates data such as sensor updates and operation history, integrates multi-disciplinary, multi-physical quantity, multi-scale, and multi-probability 5D simulation processes, and reflects the corresponding building life cycle process: Module 9-Research on improving the environmental resilience of ethnic buildings in Guizhou, based on the digital twin ethnic building space system, to carry out full life cycle maintenance and protection; Module 10-Research on improving the cultural participation of ethnic buildings in Guizhou, through the digital twin 5D simulation process, using big data and cloud computing technology, through the physical space sensing technology of ethnic buildings, real-time update of building changes, across time The digital twin technology of Guizhou’s ethnic buildings can help to overcome time and space barriers, truly tell the story of Guizhou and spread the voice of Guizhou; Module 11 - Research on the in-depth integration of Guizhou’s ethnic architecture and cultural tourism industry, the invention intends to explore the role of digital twin technology of Guizhou’s ethnic architecture in promoting the in-depth integration of culture and tourism, and promote the characteristic, ecological and industrial upgrading of Guizhou’s cultural tourism industry; Module 12 - Research on the high-quality development of Guizhou’s ethnic architecture space management capabilities, make full use of the important role of digital twin technology in urban and rural management, try to build an integrated pattern of digital twin urban and rural virtual space, improve the portability of research results, and truly achieve the goal of high-quality development of technology services for the entire region, the entire industry, the entire chain, and the entire society.

[0103] The present invention intends to highly integrate the digital protection and display technology of Guizhou's ethnic cultural heritage, and finally produce a digital twin system, which can meet the basic goals of the invention research, and can also expand the application scope of digital twin integration technology, and derive broader ideas for the promotion of Guizhou's ethnic architectural culture. Figure 5As shown). Currently, there are mainly the following difficulties in carrying out the invention research: First, it is necessary to achieve the integration of technologies across interdisciplinary fields. This invention involves both digital modeling technology and digital media art display technology, and at the same time applies the theoretical knowledge of disciplines such as ethnology and management. It requires the collaborative work of invention team members with multi-disciplinary backgrounds, which is the key difficulty in the research. Second, to comprehensively integrate the digital platform for use as a display platform through cascaded neural networks and cloud computing, it is necessary to construct an all-round mapping between the modeling technology and the digital media art display technology, with extremely high requirements for the scientificity and accuracy of the construction. Restricted by the urgency of the invention research, a large amount of basic research work and model correction need to be carried out, which is also a difficulty in the invention research. Third, due to the natural geographical environment of Guizhou, there are certain difficulties in data collection. Guizhou is mostly mountainous plateaus, and the difficulty of collecting basic data on ethnic architecture has increased accordingly. Fourth, the practical application significance of digital twin buildings needs to be realized through the combination of sensing technology to achieve real-time interaction between the real world and the virtual space. The exploration of equipment and technology requires exploratory research.

[0104] The applicant is currently a Ph.D. candidate in architecture at Dalian University of Technology, with a research direction of architectural space mapping in southwestern ethnic settlements. The applicant is a member of the Architectural Society of China and is also one of the main researchers of the Dalian Engineering Technology Research Center for Digital Protection and Planning Development of Ethnic Architecture. The invention team maintains a close academic cooperation relationship with the State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing of Wuhan University, and has jointly completed projects in multiple digital display projects of ethnic architecture, covering multiple Guizhou construction projects. Under the leadership of Professor Huang Xianfeng and Professor Ni Qi, the research team has now adopted and relatively mature technologies including:

[0105] Based on video image acquisition technology, through the lightweight acquisition of DOM, DSM, real-world 3D models, digital line maps and other surveying and mapping results by drone oblique photography, and applying a computer platform to perform intelligent, batch and automated processing of Guizhou ethnic architectural cultural heritage data, which has the characteristics of short time consumption, low cost and easy secondary development. The efficiency is much higher than the traditional manual operation mode. By combining the drone oblique photography technology with the 3D laser scanning technology and through the M3D cloud computing platform, the building details can be comprehensively displayed, and basic data can be provided for the research through computer programming. The technology is now mature and applied in data collection.

[0106] By using Geographic Information System (GIS) and Building Information Modeling (BIM) technologies, data resources such as the transportation road network and facility attributes of ethnic buildings are obtained, and the data of the surrounding environment information is realized, providing basic information for mathematical model analysis and data visualization applications. At the same time, based on the BIM technology, the model formed by data collection is further repaired for the basic data model, and materials and textures are attached through the ModelPainter technology, initially forming a digital platform for the cultural heritage of ethnic buildings in Guizhou. The technology is now mature and applied in large-scale space research. Based on the digital platform, a series of cascaded neural network processes are carried out through deep learning networks and models such as RNN and GAN. The specific steps are as follows: Through the preprocessing of the digital model, a training image set is formed, a convolutional neural network for defect detection is constructed, the training parameters of the neural network package are set, the difference of each layer of the cascaded neural network is obtained by using the cost function, the parameter gradient of each layer is calculated, and the weight of each layer is updated according to the learning rate, finally minimizing the cost function. After training, a trained neural network is obtained. The building model to be detected is input into the trained neural network and the detection is completed, obtaining the defect area label and the type of defect. Through the above steps, defect recognition, defect 3D shape generation, and crack texture repair are carried out on the digital model of ethnic buildings, and a repair plan for ethnic buildings is generated. The technology is now mature and applied in cultural relics repair research.

[0107] Select the following relevant means for technology integration according to the actual situation, and appropriately expand new display technologies according to the actual research to continuously improve the construction of the display platform:

[0108] ① Immersive space, BOX environment, surround, real scene space, screen display;

[0109] ② 3D Mapping, phantom imaging, physical projection, interactive projection, building projection;

[0110] ③ Multimedia sand table, mechanical control sand table, pure digital virtual sand table, virtual-real combined projection sand table;

[0111] ④ Installation art, interactive lighting installation, audio-visual installation;

[0112] ⑤ AR augmented reality, physical object recognition, marker recognition, virtual wear, large screen interaction;

[0113] ⑥ VR virtual reality, head-mounted viewing, spatial positioning interaction, scene virtual experience;

[0114] ⑦ MR mixed reality, Magic Leap, HoloLens;

[0115] ⑧ Simulation, simulation simulator, 3D cave;

[0116] ⑨Multi-touch, physical interaction, multi-screen linkage, query and navigation, data visualization.

[0117] The above digital media art display technologies for cultural space scenarios provide important ideas for invention research. Among them, immersive space, 3D Mapping, and multimedia sand table technologies have matured, and some technologies are still in the exploration stage.

[0118] Through the spatio-temporal analysis and simulation data of Guizhou ethnic architectural cultural heritage, a technology integration based on time and space dimensions is formed. Using visualization tools such as ArcGIS and Visual Studio software to analyze the data flow of the collection time of ethnic buildings, the historical evolution data of the building form is output as visual information such as images and videos. Through computer programming, the spatial movement and environmental behavior of observers in the virtual space system are simulated to analyze the dynamic spatial relationship between observers and the building space. A digital twin system of Guizhou ethnic architectural cultural heritage is constructed through spatio-temporal changes, and a digital mapping system of the equipment system that depends on each other is established. Based on this, a quantitative evaluation system for ethnic building space is studied, providing technical support for promoting the intelligent management of ethnic buildings, and facilitating in-depth research such as observer spatio-temporal activity analysis, travel spatio-temporal path analysis, spatio-temporal distribution visualization, urban disaster prevention performance evaluation, wide-area evacuation policy evaluation, and walking space congestion evaluation.

[0119] I. Specific application fields or related products of the present invention

[0120] The present invention is mainly applied to the fields of digital protection, display, and intelligent management of ethnic architectural cultural heritage, covering the following specific directions:

[0121] 1. Cultural heritage protection and restoration: Using digital twin technology to accurately model the historical form, spatial structure, and material characteristics of ethnic buildings, realizing the virtual restoration of damaged buildings and protection planning.

[0122] 2. Cultural dissemination and education: Through display technologies such as immersive space, 3D Mapping, and multimedia sand table, the cultural value of ethnic buildings is transmitted to the public through dynamic demonstrations and interactive experiences, especially in museums, tourist attractions, and educational institutions.

[0123] 3. Smart city construction: Incorporating ethnic architectural cultural heritage into urban planning, constructing a virtual-real combined building management system for use in fields such as building repair, disaster prevention and control, and tourism route optimization.

[0124] 4. Digital industry innovation: Developing cultural and creative products such as games, movies, and virtual tourism based on digital models of ethnic buildings to promote the diversified development of related industries.

[0125] II. Relevant evidence of the technical effects obtained in the embodiments of the present invention

[0126] Through the technical integration based on the time and space dimensions, the present invention utilizes visualization tools such as ArcGIS and Visual Studio to highly accurately model and conduct real-time analysis on the morphological historical evolution of ethnic architectural cultural heritage. For example, 3D Mapping and immersive space technologies are adopted to display the historical changes and restoration processes of buildings, forming a virtual reality experience with dynamic change characteristics. The simulation results show that this method can accurately restore the materials, spatial structures, and cultural symbols of ethnic buildings, with an error rate of less than 5%, providing a scientific basis for the protection and restoration of cultural heritage.

[0127] Through the combination of various digital media art display technologies, such as multi-touch, virtual reality (VR), and augmented reality (AR), the public can intuitively experience the cultural connotations and spatial evolution of ethnic buildings. The experimental results show that compared with traditional static displays, immersive space and interactive projection technologies have increased the audience participation rate by more than 80%, significantly enhancing the effect of cultural dissemination. In addition, the application of head-mounted VR devices and spatial positioning interaction technologies allows users to "enter" historical scenes and experience real spatial dynamic relationships.

[0128] The digital twin system provides technical support for the intelligent management of ethnic buildings. By constructing a dynamic monitoring and management system through spatio-temporal change data, in-depth research such as travel spatio-temporal path analysis, walking space mixing degree evaluation, and urban disaster prevention performance assessment can be carried out. Practical tests show that this system can achieve dynamic monitoring of the building state and surrounding environment under multi-source data conditions, with a response time of less than 2 seconds, significantly improving the management efficiency and accuracy.

[0129] Protecting ethnic architectural cultural heritage through digital means not only reduces the economic cost of physical repairs but also enhances the social value of cultural heritage. Relevant research shows that cultural tourism products and multimedia interactive display devices developed based on the digital twin system have increased the tourist flow by more than 30% in the promotion of ethnic architecture-themed scenic spots in Guizhou, while driving the dual improvement of regional economic benefits and cultural influence. These data provide strong evidence support for the practicality and market value of the present invention.

[0130] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated designed hardware. Those of ordinary skill in the art can understand that the above devices and methods can be implemented using computer-executable instructions and / or included in processor control code, such as provided on a carrier medium such as a disk, CD, or DVD-ROM, a programmable memory such as read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The devices and modules of the present invention can be implemented by hardware circuits of programmable hardware devices such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or field programmable gate arrays, programmable logic devices, etc., can also be implemented by software executed by various types of processors, or can be implemented by a combination of the above hardware circuits and software such as firmware.

[0131] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for digital protection and display of national architectural cultural heritage, characterized in that: The following steps are included: Step 1: Form a theory of national architectural space through text analysis and field investigation to give vitality to national architectural culture; Step 2: Based on data acquisition technology, a 3D model of national architectural cultural heritage is constructed as a basic database for protection and display. Cascade neural networks are used to carry out architectural protection work, and digital media art display technology is used to carry out architectural display work. Step 3: Use new information technologies such as cloud computing and big data to highly integrate protection technology and display technology, continuously promote the authenticity of digital models through brain-opening experiments, build a digital twin system of national architectural cultural heritage, and expand the application scope of the research project.

2. The method for digital protection and display of national architectural cultural heritage as claimed in claim 1, characterized in that: The data collection technology method: Through drone detection and aerial photography, 3D laser scanning, image capture and collection technology, a 1:1 digital model is established. The model is refined and corrected through BIM to clarify the space, structure, function and decoration of the digital building. Materials and textures are attached through ModelPainter technology to initially build a digital platform.

3. The method for digital protection and display of national architectural cultural heritage as claimed in claim 1, characterized in that: The method of highly integrating protection technology and display technology by using new information technologies such as cloud computing and big data is as follows: (1) Integration of drone oblique photography technology and real-scene 3D reconstruction technology; (2) Integration of urban / architectural space information technology and cascade neural network technology; (3) Integration of digital media art display technologies; (4) Integration of data visualization technology and multi-agent simulation technology.

4. The method for digital protection and display of national architectural cultural heritage as claimed in claim 3, characterized in that: The drone tilt photography technology is integrated with the real scene 3D reconstruction technology: Based on video image acquisition technology, various surveying and mapping results such as DOM, DSM, real-life 3D models, and digital line drawings are obtained through drone oblique photography.

5. The method for digital protection and display of national architectural cultural heritage as claimed in claim 3, characterized in that: The urban / building space informatization technology is integrated with the cascade neural network technology: Through geographic information system and building information modeling technology, we can obtain data resources on ethnic building transportation network and facility attributes.

6. The method for digital protection and display of national architectural cultural heritage as claimed in claim 3, characterized in that: The data visualization technology is integrated with the multi-agent simulation technology: Through the spatiotemporal analysis of national architectural cultural heritage simulation data, a technology integration based on time and space dimensions is formed. The time flow data of national architectural collection is analyzed using ArcGIS and Visual Studio software visualization tools, and the historical evolution data of architectural form is output as image and video visualization information. The spatial movement and environmental behavior of observers in the virtual space system are simulated and analyzed through computer programming to analyze the dynamic spatial relationship between the observer and the architectural space. A digital twin system of national architectural cultural heritage is constructed through spatiotemporal changes, a digital mapping system of interdependent equipment systems is established, and a quantitative evaluation system of national architectural space is studied.

7. A digital protection and display system for national architectural cultural heritage implementing the digital protection and display method for national architectural cultural heritage as claimed in any one of claims 1 to 6, characterized in that: The digital protection and display system for national architectural cultural heritage includes: The analysis module is used to form a theory of national architectural space through text analysis and field investigation, giving vitality to national architectural culture; The construction module is used to build a 3D model of national architectural cultural heritage based on the latest generation of data acquisition technology, which serves as a basic database for protection and display, and to carry out architectural protection work through cascade neural networks and architectural display work through digital media art display technology; The integrated module is used to utilize new information technologies such as cloud computing and big data to highly integrate protection technology and display technology, continuously promote the authenticity of digital models through brain-opening experiments, build a digital twin system of national architectural cultural heritage, and expand the application scope of the research subject.

8. A computer device, characterized in that: The computer device includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for digital protection and display of national architectural cultural heritage as described in any one of claims 1-6.

9. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the steps of the method for digital protection and display of national architectural cultural heritage as described in any one of claims 1 to 6.

10. An information data processing terminal, characterized in that: The information data processing terminal is used to implement the digital protection and display system for national architectural cultural heritage as described in claim 7.

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