Abstract
Generally, cell guides are installed in the cargo hold of container ships, which improve the loading and unloading efficiency of containers and fix containers when the ship is sailing. However, in actual production, due to the low accuracy of ship loading in sections, and the deviation of welding shrinkage and expansion in relevant sections, errors occur in the loading process of containers, resulting in hidden safety risks or significant economic losses. Given the above situation, it is particularly important to find a high-efficiency cell guide accuracy inspection method for construction monitoring. 3D scanner to obtain three-dimensional data is presented in this paper, based on this paper proposes a new method, this method will be used based on improved instances of 3 d point cloud segmentation model to cell guide the segmentation, and fitting container ship cell guide structure, and then realize the function of container simulation test box, cell guide after the segmentation precision inspection at the same time, for the practicality review, we compared the accuracy data gained from inspection simulation and the measured data. As a result, it was confirmed that both values were within about ±1.5mm. The validity, and reliability of the method are further verified.
Highlights
A cell guide with a lattice type structure is installed on the cargo hold of the container ship. cell guide has the function of fixing cargo and improving loading efficiency in the process of navigation
This paper proposes a new method, which will use the improved 3D point cloud instance segmentation model to achieve the segmentation of the cell guide point clouds, and fit the container ship cell guide structure, and realize the function of simulating the movement the container along the cell guides in order to check the accuracy of them
The results show that the method can effectively support the accuracy evaluation of point cloud data processing
Summary
A cell guide with a lattice type structure is installed on the cargo hold of the container ship. cell guide has the function of fixing cargo and improving loading efficiency in the process of navigation. A cell guide with a lattice type structure is installed on the cargo hold of the container ship. The cell guide starts from the floor of the cargo hold to the flared entry guide at the hatch coaming. In the actual operation, the installed cell guide has a deviation from the design drawing due to various reasons, which leads to the container being clamped, or the phenomenon of shaking due to loose spacing. There are many reasons for the deviation, such as the low accuracy of the ship's block loading, or the deviation of the welding shrinkage and expansion of the relevant section during the construction process. Even if the cell guide in each block meets the Chengjie Zong,Zhibo Wan
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