IN THE UNITED STATES PATENT AND TRADEMARK OFFICE

摘要

A SYSTEM AND METHOD ARE PROVIDED THAT ALLOW FOR DIRECT MEASUREMENT OF RELATIVE MOVEMENT AND RELATIVE VELOCITY OF MOVEMENT OF A CRANE (10) BOOM TIP (14) IN RELATION TO A TARGET LOAD (24) ON AN ADJACENT VESSEL DECK (20) ALLOWING REAL-TIME DETERMINATION OF WORK LOAD PARAMETERS UNDER THEN-CURRENT CONDITIONS. A RANGEFINDER (32) IS LOCATED PROXIMATE BOOM TIP (14) WITHOUT REQUIREMENT OF A DEVICE ON THE TARGET LOAD OR LOAD VESSEL. A. METHOD ACCUMULATES RELATIVE MOVEMENT, ENVIRONMENTAL DATA AND AS-BUILT CRANE DESIGN TO DETERMINE RATED CAPACITY OF CRANE (10). (FIG. 1)