摘要 |
<p>The system (50) has a satellite-based geographic position system (GPS) for determining coordinates and distance of a ship to a land using a radar signal. The coordinates are provided for digital processing and a visual representation. The system obtains a starting signal from a pump (54) and a position signal of a ship. The system matches the position signal with a digital card for releasing an onboard valve, if the distance of the ship to the land allows discharge of the sewage (52).</p> |