NautiSafe

The Problem

Deciding whether it's safe to go to sea is not a simple question. It depends on who you are (a recreational boater on a 5-meter dinghy or a fisherman on a 10-meter vessel), where you want to go, what the weather forecast says for the next few hours, and how that specific boat handles in the expected conditions. No integrated system existed that combined all these factors in real-time on marine hardware.

Traditional nautical systems are expensive, proprietary, and show raw data: wind speed, wave height, forecasts. Interpretation is left to the captain. For commercial and charter boats this creates legal liability: if you depart and something goes wrong, who authorized the departure?

The Solution

I designed a risk assessment algorithm combining four layers of data: the boat's CE category (determines the maximum sea state it's certified for), the hull's structural characteristics (stability, draft, engine power), real-time marine weather and hourly forecasts along the planned route, and live sensor readings from onboard instruments via NMEA 2000.

NMEA 2000 is the maritime standard for communication between onboard instruments. Integration happens via Bluetooth Low Energy: low latency, low power consumption, resistant to the marine environment with salt and humidity. The system reads engine sensors, GPS, anemometer, and other installed instruments directly.

The architecture is offline-first by necessity: in open water there's no connection. Nautical vector charts are downloaded and cached before departure using a predictive loading system based on the planned route. Bathymetry, hazard points, refuge ports: all available without internet. When the boat returns to port, the system syncs logs and updates.

The hardware is IP67-certified ruggedized tablets for marine use: operational from -10°C to +50°C, resistant to salt water, impacts, and continuous vibration.

The Result

Deployed on luxury yachts and commercial fishing boats, the system operates 24/7 in all conditions. It provides a risk index that the captain can understand along with the specific reasons, not just a green or red light. Vector map navigation with bathymetric overlays is integrated in the same interface.