The CSurvey project deals with the development and evaluation of a semi-autonomous inspection unit for underwater structures and ship hulls. For the inspection task multimodal sensor data are classified by machine learning methods. The sensor data are acquired by a camera system, a laser projection unit and a multi-beam echo sounder. CSurvey is a flexible system which can be mounted on different host systems and can be adapted to several operation scenarios. It is intended to be the basis for many applications and products in the area of underwater inspection. Furthermore it can also be used in other areas like production, logistics or security.
|Duration:||01.05.2009 till 30.04.2012|
|Sponsor:||Federal Ministry of Economics and Technology|
|Grant number:||This project is funded by the German Federal Ministry of Economics and Technology (BMWi) according to a resolution of the German Bundestag, grant no. 03SX262B.|
|Partner:||ATLAS ELECTRONIC GmbH (ATLAS), Hochschule Bremen (IWSS), Fraunhofer Anwendungszentrum Systemtechnik - Ilmenau (FhAST), Fraunhofer Institut für Biomedizinische Technik - St. Ingbert (IBMT)|
|Application Field:||Underwater Robotics|
The goal of the project CSurvey is the development of a semi-autonomous inspection unit which can be mounted on underwater vehicles and which provides the ability to detect anomalies at underwater structures as well as ship hulls.
In this context anomalies are defined as deformations and unknown objects of any kind. To detect these anomalies, visual detection methods based on online computer vision algorithms, laser pattern projection and a multi-beam echo sounder are combined (s. Fig. 1). Due to the constraints of underwater wireless data transfer, detected anomalies are stored in situ on the system during an operation and can be reviewed and checked afterwards by an operator.
The sensor systems will be mounted on a pan-tilt unit to provide a means for compensation of movements of the host system and to provide the ability to make detailed scans of regions of high interest. The project is a sub-project within the project CView. The inspection unit of the CSurvey project will be mounted on the autonomous underwater vehicle (AUV) “Seewolf” and will receive the required information regarding localisation from this host system. The other partners in the CView project are:
- ATLAS ELECTRONIC GmbH (ATLAS)
- Hochschule Bremen (IWSS)
- Fraunhofer Anwendungszentrum Systemtechnik - Ilmenau (FhAST)
- Fraunhofer Institut für Biomedizinische Technik - St. Ingbert (IBMT)
CSurvey is a flexible system which can be mounted on different host systems and can be adapted to several operation scenarios. The application of this system has, among other things, the following goals:
- Prevention of damage by the aibility of early detection based on regular and comprehensive inspection
- Cost minimisation due to early detection of damages
- Generation of storable and comparable measurement data
CSurvey is intended to be the basis for many applications and products in the area of underwater inspection. Furthermore it can also be used in other areas like production, logistics or security.