The Otter is a versatile USV designed for seabed mapping and monitoring applications in sheltered waters, harbours, lakes and rivers.
The highly integrated solution enables small form-factor and rapid deployment
Skansen is a historic area in the city of Trondheim, Norway. A fortification in older days, it is now well known for its marina, train station and the Skansen Bridge, a 52m span bascule railway bridge that can open for marine traffic to access the Trondheim Fjord. The Skansen Bridge was designed by structural engineer Joseph Strauss, who also designed the Golden Gate Bridge in San Francisco. The main goal of the survey was to perform the inspection of the jetty and investigate if there has been any displacement of rocks forming the jetty. The survey was controlled remotely from the Skansen Bridge.
The entire system is designed for rapid mobilization and deployment.
The entire system is controlled remotely from the quayside.
Combining NORBIT WINGHEAD and Lidar with the Otter USV enables a surveyor to get high-resolution data while drastically minimizing the mobilization time. The combination of NORBIT Multibeam and Lidar technology enables surveyors to collect point cloud data above and below the waterline from a portable, unmanned platform.
NORBIT’s curved array technology allows the beams to be steered electronically up to the waterline without having to physically rotate the sonar, which is ideal for combined Multibeam and Lidar surveys and allows the seamless transition between the two data types. Curved arrays produce narrower beams (higher resolution) across the entire swath compared to an equivalent flat array system. The combination of 1024 beams and 0.5°beam widths provides ultra-high-resolution point cloud data and facilitates the detection of small targets such as rocks, ropes, chains, anchors, etc. which may be hazardous to navigation in shallow harbours. The USV can operate in shallow, difficult-to-reach areas where it is difficult for conventional survey vessels to navigate.