Global positioning is based on GNSS (Global Navigation Satellite System). It is used by millions of people every day who use mobile phones and electronic devices to navigate the roads and cities.
However, everyone has experienced times when the GNSS signal is lost and the device cannot determine the exact location. This often happens when surrounded by tall buildings or structures which obstruct or deflect the satellite signal, or when the satellite signal is being deliberately blocked or spoofed. Unfortunately, this loss of signal is not limited to the shore side environment.
When precise manoeuvres are required in a marine environment, it is impossible to rely on GNSS alone. Alternative, ultra-reliable positioning technologies are required. Wartsila’s Smart Sensors based on laser, radar and camera technology can provide both local position information (where the vessel is relative to its surroundings) and situational awareness (what’s around the close vicinity of the vessel).