Modern design method of digital twins

At present, most manufacturers' models are developed in specific fields, and then models in different fields are integrated through integration and data fusion in the later stage. There are two kinds of fast 3D modeling techniques, one is 3D modeling based on oblique photography, which is suitable for the construction of large-area environment model, and the other is reverse modeling based on 3D laser point cloud data, which is suitable for the reverse modeling of a single building and equipment.

Digital Twin Application Cases and Common Technologies

Second, 3D video fusion.

3D video fusion technology is a branch of virtual reality technology, or a development stage of virtual reality. Three-dimensional video fusion technology refers to the matching and fusion of one or more video sequences in camera images with related three-dimensional virtual scenes to generate a new dynamic virtual scene or a model about the scene, so as to realize the fusion of virtual scenes and real-time videos. This fusion will not be dislocated with the tilt and rotation of the three-dimensional model, and give full play to the intuitive characteristics of the three-dimensional scene. After video fusion, you can also carry out some advanced management, such as the ball machine tracking function, you can click on the target on the three-dimensional screen with the mouse, such as a moving car or person, and the nearest ball will automatically lock and track this person or car.

Third, artificial intelligence.

In the application of digital twinning, it is necessary to simulate the real physical mapping in virtual space with various probabilities, which is inseparable from the development of algorithm model and artificial intelligence. Very complex design models are put into neural networks. With the help of deep learning, the model with high degree of freedom can be reduced to low degree of freedom and still provide the model ability we need. In principle, all virtual physical mappings must be simulated, which is very time-consuming and laborious. Using artificial intelligence can effectively select the most available simulation options.

Digital Twin Application Cases and Common Technologies

Fourth, cloud rendering.

Cloud rendering is a 3D rendering program on a remote server. The user terminal clicks the "cloud rendering" button through network software or directly in the local 3D program, and accesses resources with the help of high-speed Internet access. The user terminal sends an instruction, and the server executes the corresponding rendering task according to the instruction, and sends the rendering result picture back to the user terminal for display.

Cloud rendering technology liberates the limitation of time and space. As long as the network allows, you can operate the program on the server anytime and anywhere, check the effect, and make various demonstrations and decisions conveniently. Due to the application of real-time cloud rendering technology, it can support multiple concurrency, especially the onlookers mode is more suitable for scenes with a large number of participants.

Digital Twin Application Cases and Common Technologies

Verb (abbreviation of verb) high performance computing

The realization of complex functions of digital twin system depends largely on the computing platform behind it, and real-time performance is an important index to measure the performance of digital twin system. Therefore, how to comprehensively consider the performance of the computing platform carried by the system, the delay of the data transmission network and the computing power of the cloud computing platform, and design the optimal system computing architecture to meet the requirements of real-time analysis of the system is an important content of digital pairing. The computing power of the platform directly determines the overall performance of the system.