Research on the three-dimensional visual management and control for marine intelligent mould bed based on digital twin
Honggen Zhou, Zhanghui Yan, Xuwen Jing, Yu Chen, Jinfeng Liu, Xiaofeng Zou, Chao Kang, Bingqiang Li, Yang Xie, Dejun Yan
Abstract
Mould bed is crucial for supporting the ship subsection and controlling its deformation during shipbuilding. However, its visualisation and control process intelligence are often inadequate, leading to reduced accuracy and efficiency in ship subsection construction. Aiming at the problem, a three-dimensional (3D) visual monitoring method for the marine intelligent mould bed is proposed based on digital twin, and the overall framework of the management and control system is designed. Meanwhile, a fuzzy PID control principle optimised by the genetic algorithm is proposed to better control the deformation of the ship subsection. On this basis, the verification of the developed system is carried out based on the physical intelligent mould bed, and the 3D visual management and control of the marine intelligent mould bed are realised. It provides a foundation for improving the accuracy and efficiency of ship subsection construction.