BULK MATERIAL STACK SHAPE MEASURING METHOD AND BULK MATERIAL STACK STORAGE QUANTITY COMPUTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a bulk material stack shape measuring method and a bulk material stack storage quantity computing method that can indexing the shape of a bulk material stack in a storage yard in order to completely automate the operation of a reclaimer for digging and delivery bulk material and can measure the storage quantity of bulk material for a cargo handling plan, stock-taking, and the like with high accuracy, at high speed and at low cost. ;SOLUTION: A distance measuring device 90 provided with vertical oscillating mechanism is installed at the tip of a boom 36 of a reclaimer 34 used to dig a bulk material stack stacked in a storage yard. The boom 36 of the reclaimer 34 is put in turning action in an opposed position to the dug face 80 of the bulk material stack 10 after digging, and the distance measuring device is put in vertically oscillating action to measure the distance to the dug face 80. The three-dimensional shape of the dug face 80 is then measured on the basis of the measured distance to the dug face 80. The three-dimensional shape of the dug face 80 can therefore be measured with high accuracy, and a digging start spot and dug face shape are detected from the shape of the dug face 80 so as to be able to completely automate the operation of the reclaimer 34. The whole shape can be detected using the initial data of the stack.;COPYRIGHT: (C)1998,JPO