| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for controlling a crane that prevents the collision between a spreader and a container when the spreader is lowered so as to be brought closer to the container, and achieves the contact between the spreader and the container in a short time. <P>SOLUTION: The method for controlling the crane 1 that has the spreader suspended by a main winding wire rope and a distance measuring sensor for measuring the distance between the spreader and a sea transport container, includes: a distance measuring step for measuring the distance Lx between the spreader and the container with the sensor; a calculating step for calculating an upper limit velocity Vx from the distance Lx and the acceleration at the time of braking of the spreader; and a decelerating step for controlling the moving speed of the spreader 7 to the upper limit velocity Vx. <P>COPYRIGHT: (C)2013,JPO&INPIT |
