A bucket wheel machine automatic control method and system based on collapse detection

Abstract

The invention relates to an automatic control method and system for a bucket wheel machine based on collapse detection. The method is specifically as follows: setting a two-dimensional laser scanner on the cantilever of the bucket wheel machine, and the plane where the cantilever swings is the scanning plane; The two-dimensional laser scanner described above periodically scans the contour line of the feeding surface to be detected on the scanning plane, and the scanning area between the contour line and the two-dimensional laser scanner is calculated by an integral step in each cycle; the scanning area is calculated The landslide area is obtained by the difference with the scanning area of ​​the previous cycle; according to the size of the landslide area, an operation command is sent to the upper computer of the bucket wheel machine. Compared with the prior art, the invention has the advantages of high degree of automation, high reliability and low cost.

Description

technical field [0001] The invention relates to a control technology of a bucket wheel machine, in particular to an automatic control method and system of a bucket wheel machine based on collapse detection. Background technique [0002] At present, the cantilever bucket wheel machine in the strip coal yard is operated by the driver in the bucket wheel machine cab, and the efficiency of material reclaiming largely depends on the driver's operating proficiency. The coal pile in the coal yard will collapse for a long time due to the bucket wheel machine reclaiming, the repose angle of the coal pile in the reclaiming area is destroyed, and so on. If the driver does not observe carefully during the operation, the bucket wheel will pass through the collapsed area of ​​the coal pile to pick up materials. When the bucket wheel eats too much material, the current of the bucket wheel will increase instantaneously. If the landslide area is not large, the bucket wheel can continue to p...

AI Technical Summary

Problems solved by technology

However, the driver’s operating level is inevitably high or low. Once such collapse occurs, the driver can only use his own judgment to decide how to adjust the stacking and reclaiming arm when passing through the collapsed area.

At this stage, the commonly used protection methods are mostly to prevent the collapse of stacks through flow and bucket wheel current feedback adjustments, and then improve the efficiency of reclaiming materials, but the flow feedback adjustment has a certain hysteresis, and the current feedback is not stable enough to be accurate and timely. Control bucket wheel machine to avoid collapse

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