The digital modeling + key technology of simulation interaction is the intelligent construction based on digital data. The physical world forms the digital dualism, modeling, simulation, optimization and control, modeling, simulation, digital optimization and control of building entities through digital image, and Cr main digital molding + analog interaction technologies include BIM, parametric molding, light technology, digital engineering simulation Digital prototype, digital design, digital twins, digital interaction, simulation and simulation ability, automatic rule checking, 3D visualization and virtual reality are mainly embodied in three fields: digital modeling, digital design and simulation and digital visualization technology.

2、 Intelligent production
(1) Demand driven production management. Intelligent building production includes production preparation, raw material procurement, parts production, etc. in the production preparation process, product and process information will be analyzed and planned according to user needs.

(2) The production mode of the factory has changed to the intelligent direction. The traditional production method is to produce building components in factories, that is, handicraft production method, with a low degree of automation; Now there is a semi-automatic production line, which uses water for chemical operation; In the future, the fully automated factory production line will be coordinated by CNC production line, 3D printer and manipulator.

3、 Green and low carbon + key technologies of ecological and environmental protection
The essence of low-carbon green + green technology is green leading intelligent construction. Green building is an engineering activity, which focuses on the whole life cycle of building, green production and green building products, and realizes sustainable development through scientific management and technological progress, so as to make maximum use of resources and protect the environment.

Green buildings, whether buildings or products, should be green, low-carbon, healthy and high-quality, reflecting the value orientation and ultimate goal of intelligent buildings. The main technologies include passive energy conservation, energy-saving buildings, resource utilization technology, pollution control, recycled concrete, removable buildings, customized buildings, etc., It is mainly in the three fields of green building, green building and recycled building.

4、 Lightweight BIM modeling
Solve the problems related to the actual use of BIM Technology, such as high modeling cost, long cycle, poor display and poor interactive experience. The introduction of lightweight modeling technology mainly starts from the two stages of geometric transformation and rendering processing, evaluates the technical advantages and disadvantages and application requirements, reduces the modeling cost, shortens the modeling cycle, and reduces the resources occupied by the model during loading, so as to improve the efficiency, so as to provide strong support for the construction industrialization.

5、 Intelligent design
The new technology upgrading in the design stage of intelligent engineering architecture includes the upgrading of design tools and the transformation of design logic.

(1) 、 update design tools. New technologies, such as building information model (BIM) and artificial intelligence, enable design tools to switch from CAD design to 3D modeling and computer-aided design. BIM model application scheme includes virtual construction, collision inspection, etc. It also allows multi-disciplinary collaborative design of buildings, structures and hydropower. Artificial intelligence technology makes the design process more intelligent by simulating the thinking process of designers.

(2)、 Design logic upgrade. BIM model connects architecture and manufacturing industry, which simplifies the transition from design logic to manufacturing logic. Architectural design refers to the industrial idea of standardized product design. The design features of standardization are universality, modularity and serialization.

6. UAV patrol Technology
By using proven unmanned technology, camera, image acquisition processing and recognition technology, and using unmanned aircraft instead of manual maneuver control, it can provide more effective maneuver control means for various problems in the construction process by establishing a route, and use machine learning algorithm.

7. Digital production line enabled by digital building platform
In order to promote the transformation and modernization of buildings, promote the industrialization, digitization and intelligent upgrading of buildings, actively learn the advanced experience of advanced manufacturing industry, build an industrial Internet platform in the construction industry, and realize the intelligent construction in all aspects of engineering construction, the whole process of engineering project has been established based on digital double barrel and digital technology Horizontal linkages between components and all participants; All parts of the industrial chain coordinate the design, procurement, construction, use and operation of buildings through the platform, so as to more effectively realize the optimal allocation of industrial chain resources; Data based intelligent services. In short, it provides data support for business applications such as planning, design, construction, production, cooperation and maintenance in the construction industry.