| 摘要 |
<p>A system for remotely tracking, monitoring and messaging vessels utilizing a global positioning system satellite constellation, having a transceiver located on the vessel to be tracked and monitored, a monitoring center located remote from the vessel, a communications means allowing the bi-directional communication between the transceiver and the monitoring center, a communications means allowing the uni-directional communication from the global positioning system satellite constellation to the transceiver, sensors on the on-board systems of the vessel, a communications means allowing communication between the sensors and the transceiver, an input/output means for messaging, and a communications means allowing communication between the input/output means and the transceiver.</p> |
