Research on Digital Twin Construction and Safety Management Application of Inland Waterway Based on 3D Video Fusion

Abstract

The digital twin can reconstruct the scenes of real traffic operation of inland waterways in the virtual space, giving birth to new ideas for the digital transformation and upgrading of water safety management. Aiming at the problems of video fragmentation, sub-system data separation and untimely emergency response in the current inland waterway safety monitoring, this paper proposes a new method for reconstructing and applying a digital twin of inland waterways based on 3D video fusion which consists of four parts: (1) Combining drone tilt photography and BIM modeling technology to construct a threedimensional scene model of inland waterways; (2) Proposing a multi-channel video three-dimensional registration and rendering method to integrate in real time discrete surveillance videos of different angles of view with three-dimensional scene model to establish the spatial correlation between different video images in the scene; (3) Integration multi-source IoT sensing data to form a scene of digital twin of inland waterways; (4) Based on water safety management requirements and business logic, to develop innovative applications of water safety management based on digital twin scenarios. A certain segment of the Changhu Shen Line was selected for demonstration and application. The application results show that the construction and application of digital twins for inland waterways combined with 3D video reduces the pressure on managers to understand real-time video footage and improves the efficiency of daily monitoring, evidence collection, and emergency response.INDEX TERMS digital twin, inland waterway, safety management, video fusion, safety management, inland waterway, 3D panorama

Application of Realistic 3D Model in Building Prefabricated Nanomaterial Structure

“…It is known from the collinear equation that the coefficient of the outer square element of the collinear equation requires at least three known ground control point pairs and pixel point pairs that are not on a straight line. Incline photogrammetry technology integrates dynamic GNSS positioning system inertial navigation system incline photogrammetry system to obtain multi-angle images of ground objects and provide rich and real textures for 3D modeling of urban real scenes [ 17 ]. Because the coordinate system is not parallel or the origin of the three coordinates is inconsistent, the position and attitude of POS can be naturalized to the center of the vertical camera through system checking and naturalization, and the external orientation elements of the vertical image can be obtained according to the POS data.…”

Application of BIM Technology in Data Collection of Large-Scale Engineering Intelligent Construction

“…Gao et al said that the various information generated by the continuous deepening and refinement of the BIM model in the project also changes continuously and closely, and finally, the information is closely related [5]. Wu et al said that the building simulation technology in BIM technology is a multidimensional model information integration technology based on traditional CAD technology in recent years [6]. Guo and Hu said that all parties involved in the project can obtain project information in the digital virtual model established by BIM technology [7].…”

A Novel Method for Tunnel Digital Twin Construction and Virtual-Real Fusion Application

“…It realizes the overlay and fusion display of multiple videos based on 2D and 3D feature registration, but the viewing angle is limited to the camera path. The fusion method of video and 3D scene [28][29][30][31] is to capture the video image of a real object by camera, and register the video image in the virtual environment in real time in the form of texture. This method allows users to observe the fusion results from any virtual viewpoint, which is better than the other three methods in display effect and interaction.…”