C2B2 Test Week 15 – 19 September 2025 – Mistra Co-Creating Better Blue

Completed. Next C2B2 Test event will be in 2026. Feel free to contact us if you have ideas or input. c2b2@gu.se

Stories; Evaluation; Invitation; Demonstrations; Getting there; Lunch; A tour around the station

Stories

Filmed and edited by Thomas Drakenfors (University of Gothenburg).

Demo Day visitors discuss just outside the station entrance.
Simon Paulsson (Hugr AB) at his command post for the Seacat demonstration.
Ia Algell (Hugr AB) demonstrated the Seacat.
Tarun Sathiyan (Chalmers) led several of the demonstrations.
Krister Blanch (Chalmers) in his Seahorse.
The Seahorse.
The Seahorse top sensor frame, with cameras in six directions.
Ola Benderius (Chalmers) leans back, confident that all in his group are busy doing their thing.
Tarun Sathiyan and Max Larsson (both Chalmers) prepare the Seagul.
Tarun Sathiyan (Chalmers) monitores the balancing of the Seagul.
Maja Börjesson and Max Larsson (both Chalmers) demonstrated the Seagul.
Luis Fiorina (SeAnalytics AB) works with automated analysis of video images for monitoring marine ecosystems, and he was of course interested in the Seapickle demonstration.
Krister, Ia and Simon during preparations.

All photos above by Thomas Drakenfors (University of Gothenburg).

LinkedIn 19th Sep. Drones, rescue equipment, boats that efficiently collect data and a TV channel from the seabed, 30 meters below the surface. These were some of the things that were tested during Mistra Co-Creating Better Blue (C2B2)‘s Test Day on Bornö today, the finale of a week full of work for researchers and students, plus entrepreneurs in the maritime equipment sector. The weather forecast threatened rain, but today’s tests were spared. One of those who participated was Ia Algell from the company Hugr, a Gothenburg company that works with technological innovation.
– We have made a lot of progress during the test week, she says.

LinkedIn 18th Sep. Yesterday Seahorse arrived to Bornö in the Gullmarn fjord, joining other platforms in the C2B2 Test Week. Seahorse may look like any small aluminum boat, but it is the source of the world’s largest data set for research and development of robot perception algorithms: 30 TB! Six high-performance optical sensors form the core, and everything is calibrated into a single vehicle frame.

LinkedIn 17th Sep. Is there anybody down there? FishTV is a project where REVERE – Resource for vehicle research at Chalmers is using the low-cost platform Seapickle. Tarun Kadri Sathiyan is leading the work during the ongoing C2B2 Test Week at Bornö in the Gullmarn fjord. The tests yesterday showed that the new version of Seapickle is waterproof, that the camera works, and that there are curious fishes down there.

LinkedIn 17th Sep. During the ongoing C2B2 Test Week Magnus Willner from Arbon Earth AB is trying out a new method for doing underwater video collection. Magnus brought a few ideas, a bag of equipment and the attitude of an entrepreneur. After initial testing from the suspension bridge it was time for a cross section using a small vessel.

LinkedIn 17th Sep. Platforms of different sizes start to gather for C2B2 Test Week. Ia Algell took the opportunity to ride on the surface going drone Seacat during the crossing from Holma to Bornö in the Gullmarn fjord, where the test week is being held.

LinkedIn 16th Sep. C2B2 Test Week got going yesterday, with people and equipment starting to gather at Bornö in the Gullmarn fjord. Magnus Willner from Arbon Earth AB is one of several here interested in underwater video. The suspension bridge hanging over steep shore makes for easy access to relatively deep habitats.

Evaluation

If you joined the test week or visited the demo day, please do the evaluation survey (no later than 26th Sep):

Test Week participant

Demo Day visitor

You can always contact us with your comments, suggestions or other input at c2b2@gu.se.

Invitation

Read the pressrelease (in Swedish).

C2B2 proudly invites to a test week 15 – 19 September, at the Bornö station inside the Gullmarn fjord. The week ends with a demonstration day on 19 September.

See the movie from last years event, our first offshore test day 13 May 2024.

Join testing 15 – 18 Sep

Visit demo day 19 Sep

Demo day 19 September, 10:00 – 14:00

Demonstrations

A great variety of platforms will be demonstrated on the demo day 19 September!

The Seahorse is a boat equiped with several very high resolution cameras, as well as other sensors.
The Seacat is an autonomous 900 kg surface vessel, capable of several tasks.
The Seagul is an experimental glider design, for monitoring the ocean environment.
The Seadragon is a surface going drone equiped with a multibeam echosounder.
The ROV is an off-the-shelf remotely operated vehicle equiped with a camera.
The Seapickle is a low-cost cabled observatory, equipped with camera, lamp and sensors for temperature, salinity and pressure.

The Seahorse is part of the Reeds project. It is equipped with cameras gathering the world’s largest data set for autonomous driving/navigation.
The Seacat was originally built in an collaborative innovation project, it has been tested doing quay side inspection and as transport vehicle for a sailing drone.
The Seagul is an experiment in developing a low-cost diving ‘glider’, for monitoring the ocean environment with high endurance.
The Seadragon is developed for rescue missions, to find bodies under the surface.
The ROV captures images of eel-grass meadows which are then analysed with deep learning methods.
The Seapickle has been developed as part FishTV, an underwater slow TV project, where the viewers can get involved as citizen scientists.

Getting there

On the demo day 19 September we will gather at 10:00 at Holma boat club (Google maps). The demonstrations will take place around the Bornö marine research station, the white building visible across the water from Holma. The transport to Bornö will take place in a small open boat, bring suitable clothing and shoes. The transport from Holma will take about ten minutes. Life jackets are available for everyone.

Lunch

A very simple lunch is served on the demo day 19 September.

A tour around the station

Bornö is a classic site for ocean measurements and research. After the demonstrations on the demo day 19 September, a tour of the station is offered.

Why Bornö?
• Accommodation, small workshop, meeting rooms.
• Access to 33 meters depth directly from the jetty.
• 115 meters depth from a boat, in the central part of the fjord.
• Sheltered location.
• Opportunities for long deployments/tests.