A cruiser under way, her captain at the helm

HELVA AI

Go out with
Helva aboard.

WHAT HELVA TAKES ON

Aboard alone,
never on your own.

Helva AI is AI crew — crew that keeps watching without letting attention lapse, and speaks first. And the watch does not end when your day on the water does. When you step off the boat, Helva stays aboard and keeps watching.

Watching the water around you, and listening to what changes inside the boat: these are not two machines but one thing, done without a break. So Helva takes on both.

The watch on the water is already aboard and running in Tokyo Bay. The listening inside the boat goes aboard in the 2027 closed beta.

Someone at ease on the saloon sofa, a screen glowing at the helm behind
The helm of a cruiser, open water ahead on a clear day

WITH YOU

On the water,
right beside you.

Watch ahead, watch astern, read the wind and the tide. If you have people aboard, watch them too. And all the while the engine keeps running. Nobody can hold all of it at once. What Helva takes on is all of the watching — the traffic around you, the wind and the tide, and, from the 2027 beta, how the engine is doing. What stays in your hands is the deciding.

360° camera, AIS, GPS, weather, tide. A vessel closing, a sky on the turn, the tide running. Helva watches without a break, works out what is about to happen, and speaks first — before you have to ask. Nothing arrives as a raw list of detections. The same piece of news is delivered differently while you are docking than when you are running.

So you are no longer pinned to the instruments, and can keep your eyes on the water. The wheel is yours, and so is where you go. Every reason not to go that falls away is one more place you can go.

HELVA SPEAKING FIRST / TOKYO BAY, ON THE MACHINE

HELVAIt is 8:09 pm. Wave height 0.8 meters, wind one meter a second, light drizzle. The drizzle is forecast to hold for another five hours, so watch your visibility.

A record of what the machine (NVIDIA Jetson AGX Orin) actually put out. It answers no question — Helva opened it. Two more lines that Helva opened appear in the right-hand screen under “What goes aboard”. Wording will change as development continues.

HOW IT REACHES YOU

Interrupt what is urgent.
Let the rest wait.

How something reaches you depends on how urgent it is and where you happen to be. For now: the voice, the screen at the helm, and your phone. An iPad, a smartwatch, and indicator lights come later.

Anything that changes meaning in seconds — a vessel closing — interrupts immediately. A trend worth reporting, or a piece of maintenance worth doing, waits until it will not cost you anything. Staying quiet when quiet is the right answer is part of the same design.

What is said, and when, Helva decides. Whether you are in the slip, under way, or coming in. Where you are and what water you are in. What the weather is doing. All of that goes into the call before anything is said.

Working the anchor in a cove
A marina at night. Cruisers lit along an empty dock

EVEN WHEN YOU’RE AWAY

You step ashore.
Helva stays aboard.

All week, while you are on land, the boat sits in her slip. How the bilge pump cycles, battery voltage, temperature and humidity below. Helva keeps watching all of it — and remembers what the engine sounded and felt like on your last run, and how the fuel went down.

What happens inside a boat rarely fails all at once; it drifts a little each day. You adjust to a drift that slow — the people aboard most often are the least likely to catch it. Helva remembers how things were, and tells you only what has changed. Anything urgent goes straight to your phone. The rest waits, gathered up for before your next trip.

Get to the marina on Saturday and head straight out. One less “is she all right today?” before you cast off.

This is what we will build and prove during the 2027 closed beta.

The most common accident on a pleasure boat is, in fact, not being able to keep going. The numbers, and where they come from, are on the company page.

WHY HELVA LIVES ABOARD

Helva is aboard.

The cameras are the eyes, the sensors the sense of the body. The boat itself is where Helva lives. Whether you are aboard or not, the same crew is on the same boat — which is why the watch on the water and the changes inside the boat are never split apart.

The watch and the alerting are worked out on board. And Helva remembers how this boat used to be — the sound of her last summer, how often the bilge ran up to last month. That record does not leave the boat.

The captain runs the boat, as always. Helva does not take the decision away; what grows is what you have to decide with. The mind belongs to the ship. The decisions belong to her captain.

A cruiser berthed at a marina at dusk

WHAT GOES ABOARD

Two screens, and one object.

Two monitors sit at the helm. Navigation on the left, cameras and conversation on the right.

Left monitor: status rail, head-up compass, heel and trim, map
Left — navigation A head-up compass with wind direction and speed laid over it, heel and trim, tide, and own ship on the map. The rail down the left edge is Helva's own state. Taken 6 August 2026 on a Jetson AGX Orin. The position and speed come from a demonstration track we run across Tokyo Bay.
Right monitor: 360° camera in two bands, detections, conversation log, weather
Right — cameras and conversation The 360° camera unrolled into two bands, ahead and astern, with a bearing scale across each. The blue boxes are other craft being detected in the image. Bottom left is the conversation log — Helva opened both exchanges. The footage is a recording made on 7 November 2025, played back with detection running over it.
Design sketch of an egg-shaped aluminum pod
Helva Shell — an aluminum egg. The ring near the top shows whether Helva is listening, or about to speak. Speaker and microphone inside. The industrial design is still in development.
Sketch of the pod on the dash beside the helm
It sits beside the helm. Nothing is taken out. Your existing electronics stay where they are and go on working as they do now. Outside the cabin go the 360° camera and the sensors in the engine space.

TECHNICAL

What is dangerous gets said, connection or not.

Out on the water, connectivity comes and goes. The watch and the collision reasoning are completed on board, so a warning still reaches you with no link at all. Choosing the words, and reaching for the wider picture, borrow help from ashore when there is a connection. Which parts can afford to lose the link, and which cannot, is decided in advance.

Sensing360° camera / AIS (SDR reception) / GPS / attitude sensor (IMU) / weather and sea state
ComputeNVIDIA Jetson, aboard. External compute is used alongside it when connected
Condition monitoringContinuous recording and change detection across sound, vibration, fuel consumption, bilge activity, temperature and humidity, and voltage (to be built during the 2027 beta)
InterfaceThe screen at the helm, the voice, and your phone. iPad and smartwatch to follow
ConnectivitySignal K is implemented as the intake for the boat's own data. The design receives NMEA 2000 and the other standards already aboard without adding another proprietary protocol, and it must not force you to rip out or replace the electronics you already have
Closing vesselsFor vessels received over AIS, the closest point of approach and the time to it are computed every second. Head-on, crossing and overtaking are told apart, and which vessel must give way under the COLREGs is worked out. Helva does not tell you how to steer. Finding a collision course in the camera image is being trialed at sea now.
FittingBoats with a hardtop or a windscreen, where a screen can go at the helm. Installed alongside your existing electronics

Specifications are under development and subject to change.

WHO BUILDS IT

We put it on a boat, in Tokyo Bay.

Helva AI is built by Brainship Marine Technology Co., Ltd. (Minato-ku, Tokyo; Japan Corporate Number 1010401201104). Our trials run out of Yumenoshima Marina in Tokyo Bay — heavy traffic, dense AIS, and about as demanding a place as there is to test something that has to keep watching.

We write down only what we have confirmed on an actual boat. We will report what comes next the same way.

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