Patent ID: 6823810
Filing Date: 2004-11-30
Classification: B63B,G01F

Abstract:
A ballast water exchange monitoring, recordation, and reporting system for seagoing vessels, the system comprising:a sensor for monitoring ballast water exchanges of a ballast water tank and for transmitting an electronic signal indicative of the exchange in the ballast water tank; a distal acoustic modem for receiving the signal from the sensor and for creating and transmitting an acoustic signal through a shipboard metal structure extending substantially throughout the vessel, a proximal acoustic modem adapted to receive from said metal structure the acoustic signal created and transmitted by said distal acoustic modem and to transmit an electronic equivalent thereof; and a shipboard data acquisition computer adapted to receive the electronic signal from the proximal acoustic modem and to generate recording of data relative to ballast water exchange activity for a selected length of time, the recording being suitable for ballast exchange reporting requirements.