A Calculation Method of Bulk Stockpile Shape Parameters in Stockyard

Abstract

The invention discloses a calculation method of a stock ground bulk cargo pile shape parameter. The calculation method comprises the following steps: 1) obtaining an included angle between a bulk cargo pile curved surface projection line and a bulk cargo pile bottom surface; 2) according to the quality of the discharged material of each operation point, and calculating the volume of the discharged material of each operation point; 3) calculating critical bulk cargo pile height; 4) during the automatic modeling of the bulk cargo pile, dividing the bulk cargo pile into two classes according to the height; 5) calculating the height h of the bulk cargo pile Wn; 6) repeating 3) to 5), and successively solving to obtain the pile height of each operation point; and 7) according to a phenomenon that a material bar is one series of bulk cargo pile height and according to the displacement and the bulk cargo pile inclination of material piling and taking machine at each operation point, simulating the appearance of the upper bulk cargo pile of the material bar. The calculation method is high in calculation efficiency, can guarantee accuracy and can calculate different types of piles.

Description

technical field [0001] The invention relates to the automatic control technology of a large-scale bulk cargo stockyard, in particular to a method for calculating the shape parameters of bulk stockpiles in the stockyard. Background technique [0002] At present, in the field of large-scale bulk cargo yard management, it is an important link in the management of large-scale bulk cargo yards to grasp the spatial status of the warehouse in a timely manner. It is related to the site allocation of incoming materials and directly affects the efficiency and benefits of stockyard operations. Since the raw materials of the large-scale bulk storage yard are constantly coming in and out, how to grasp the spatial status of the large-scale bulk storage yard in time is also a difficult point in the management of the large-scale bulk storage yard. At this stage, the inventory of materials and the space occupancy of the stockyard are mainly estimated by manual and regular visual inventory. ...

AI Technical Summary

Problems solved by technology

There are the following disadvantages: 1) The estimation results are largely affected by manual experience, and the error is relatively large; 2) The labor intensity is high, and it takes a long time to take an inventory; 3) Usually, an inventory is carried out after a long period of time, and it cannot be timely Reflect the spatial status of the stockyard

The above problems have greatly affected the refined management of the stockyard. If the space utilization of the stockyard cannot be grasped in time, it is impossible to formulate and optimize the allocation of incoming materials, and it is impossible to maximize the utilization efficiency of the stockyard space.

[0003] In order to grasp the space utilization of the stockyard in time, some large-scale bulk cargo stockyards adopt three-dimensional laser scanning technology, and at the same time combine GPS positioning technology to realize real-time measurement of the space state of the stockyard, so that accurate space utilization information of the stockyard can be obtained in real time. It is mainly the shape and size parameters of the stockpile, but the cost that needs to be invested is very huge, and the cost of tens of millions of yuan has greatly restricted the application of this technology.

Images