Patent ID: 9352939
Filing Date: 2016-05-31
CPC Classification: B66C,G01B

Claim Text:
1. A crane operation assistance system for assisting operation of a crane including a movable body capable of hoisting a container and moving in a horizontal direction, the system comprising: a scanning-type distance meter mounted on the movable body, the scanning-type distance meter being capable of measuring a distance and an angle between the scanning-type distance meter and an object under a range of movement of the movable body; and a controller that is programmed to: lower the container into an imaginary containers presence zone that includes a container storage space able to accommodate the container; make, based on information measured by the scanning-type distance meter, object height distribution data that is data indicating a distribution of heights of objects under the range of movement of the movable body; and revise, if a blind spot for the scanning-type distance meter has occurred in the made object height distribution data, data of object heights in a zone of the blind spot, wherein the revised data of the object heights is based on data of an object height at a point that is farthest from the scanning-type distance meter in the imaginary containers presence zone having an overlap with the zone of the blind spot.