The underwater laser vision camera for seem tracking and inspection in saline water up to 95 m depth

Underwater inspection of constructions is heavy, expensive and life-threatening operation. There are many cases where robots are used for that purpose instead of professional divers. Still actual measurements and review are usually human task. We propose a device which can  implement this task together with underwater drone or robot. Obtained measurement scans can be retrieved on a service boat. A customization quality check can aggregate the measurements and deliver data and signals for quality problems. The proposed solution can be used in wide area of surface quality control fur submarine constructions. Combined with a welding robot the camera can drive the robot within a specified seam and obtain this way a high quality weld.

Application areas

Main view of deep blue

Deep blue is using a green laser for best underwater performance.  


The structure of the system allows connection of different sensor types for underwater inspection and seam tracking. As usually in the Blue series  images are collected by the sensor and processed in the controller.

Underwater complications

Apart the hydro isolation there are several additional problems to be solved. On one side the optical behavior needs to be compensated in the software. The selection of green light is because it is better propagated in water the traditional RED light for triangulation scanning devices. GREEN especially instead of blue as in coastal water the propagation behavior is better.