Advanced System Technology branch AST of Fraunhofer IOSB
The MISO-Inspector project has developed an intelligent, multivariate inspection system for examining foundation structures on offshore structures. At the heart of the system is a modular sensor carrier, which is deployed on underwater vehicles and integrates various acoustic, optical and other measurement methods. The data collected is processed automatically, geolocated and merged to form digital three-dimensional structural models. These models enable a thorough condition assessment and the early identification of geometric changes and damage to maritime infrastructure.
Project objectives
The aim of the IOSB-AST part of the project was to develop, integrate and test a versatile sensor carrier for underwater vehicles, as well as the associated navigation, localisation and modelling methods.
Our approach
Particular emphasis was placed on the automated fusion of multisensor data to generate high-resolution digital models underwater. This has created key prerequisites for partially and, in future, fully autonomous inspection operations under real offshore conditions, and laid the foundations for digital condition models of maritime structures.
The result
As part of the project, a modular sensor carrier with a ROS-based system architecture was developed and successfully tested in laboratory, port and offshore trials. Multisensory measurement data could be merged into three-dimensional digital structural models, enabling a comparison between target and actual conditions as well as the localisation of geometric deviations. The results achieved form an essential basis for digital twins of maritime infrastructure and contribute to increasing the efficiency, safety and reproducibility of offshore inspections.
