After one year of testing, the main UUV of Tethys Robotics gets a redesign to be ready for the next level. The main improvements concern the manoeuvrability and stability in the water while still being able to add further sensors and tools. Proteus will now be even more agile, robust and faster than before.
Tethys Robotics came back to Lake Thun, but this time at sunrise. The team arrived at 4:00 to make the Proteus ready to dive at 4:15 to witness the sunrise at 4:30. This early in the morning, the lake is very calm and silent. Only fishes bring movement to the water surface. Perfect circumstances to explore new places which would otherwise be crowded by boats, fishers or other people.
After some further development, Tethys Robotics had the opportunity to test the Proteus with the Swiss Military EOD team. The tests took place in Lake Thun where the EOD team already has some operations. The goal of the tests was to find the further features needed in Proteus to make the support for the EOD team more efficient. Furthermore, the localization system was tested in a real-world environment for the first time. The idea is to develop a sensor-fusion algorithm to combine our sensors and increase the accuracy of the robot’s positioning.
We did it! Tethys Robotics won one of the five spots in the newly renovated Büro Züri office. The office is located at the Innovation Park in Zurich where a lot of other Startups and innovative projects are encountered. This office will be available for free over the period of one year till the next batch of innovative Startups takes over the place.
In recent years, underwater photogrammetry has been introduced and even implementations of unmanned underwater vehicles (UUVs) have been used to explore the underwater environment. Johannes Lienhart tackles the challenge of implementing underwater photogrammetry for use in Swiss lakes. Possible use cases of such a setup are the inspection of underwater structures and the investigation of the sedimentation process of the lake bottom. The project addresses the challenges associated with an underwater photogrammetry setup, particularly the poor visibility in Swiss lakes compared to other studies in marine environments. The main part of the project is dedicated to building the hardware, testing its basic functionality and interfacing it with the UUV Proteus from Tethys Robotics.
Happily presenting our newest diving robot: Proteus. Named after a greek sea god.
Proteus is a totally redesigned underwater drone and allows us to reach new depths, see the underwater world in great detail even if it is dark and turbid. It is developed to easily mount sensor suites, transmit data at high speeds, and a lot more.
Last weekend, our newest robot Proteus from Tethys Robotics was allowed to dive into the Lake of Zurich for the very first time and obviously felt the freedom.
It is a big step for us! Because this robot is the first completely self-developed robotics system of Tethys Robotics and everything works perfectly. We are very proud.
You want to learn more? Please follow this link: https://tethys-robotics.ch/index.php/robots/proteus/
Bastian Schildknecht tackles the problem of 3D reconstruction of underwater environments by constructing point clouds from sonar images. Having access to accurate maps can often be crucial for many underwater operations. For that reason, a feature-based method for the estimation of landmark positions in 3D coordinates was built. This is done by feature extraction and feature matching on sonar images in order to acquire landmarks. These landmarks then get registered and integrated into the 3D reconstruction by using a novel iterative optimization method for estimating the landmark positions. To verify the performance of the reconstruction method, the self-developed sonar simulator with a synthetic data set is used.