| 摘要 |
<p>A system for monitoring the drag of a boat's anchor (2) comprises a buoyant body (8) for housing a GPS receiver. A securing line (10) is attached to the body (8) and is configured to connect the body (8) to an anchor (2) such that the body (8) is able to float on the surface of a body of water when connected to the anchor (2). A GPS receiver is provided that is associated with the body for receiving a global positioning satellite (GPS) signal (12). A processor is configured to generate location data indicative of the location of the body (8) based on the received GPS signal. This location data is used to determine when the buoyant body (8) has moved outside a predetermined perimeter that is indicative of the boat (1) having drifted, and an alert signal is generated if such a determination is made.</p> |
