摘要 |
At an end portion of a telescopic boom of a crane, a stereo camera which measures a distance from the end portion to an object is provided, and an image-processing controller which obtains three-dimensional position information of the object based on the crane as reference from measurement data to the object by the stereo camera is provided, and three-dimensional positon information of an object in a surrounding area centering on the crane by the moving the telescopic boom is obtained. |