SYSTEM AND METHOD TO DETERMINE RELATIVE VELOCITY OF CRANE AND TARGET LOAD

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).