Method and system for detecting and controlling stockpiling

Abstract

The invention provides a method and a system for detecting and controlling stockpiling, wherein the method comprises the following steps of: carrying out laser scanning to a stockpile and a stock flow ejected out of a stock ejecting roller of a stockpiling machine by using a laser scanner; collecting scanning data in real time; reading the state data of a PLC (Programmable Logic Controller) in real time from the PLC for controlling the stockpiling machine; decoding the scanning data and establishing a space coordinate relating to the points of the stockpile and the stock flow ejected out of the stock ejecting roller of the stockpiling machine by combining with the state data of the PLC; separating the contours of the stockpile and the stock flow ejected out of the stock ejecting roller of the stockpiling machine in the space coordinate; distinguishing the wave peak of the stockpile by utilizing the contour of the stockpile; calculating the distance between the stock ejecting roller on a large arm of the stockpiling machine and the wave peak of the stockpile, and transmitting a control instruction on the stockpiling machine to the PLC according to a calculating result; and operating the stockpiling machine by using the PLC according to the received control instruction. The method and the system provided in the invention can be used for accurately judging the distance between the large arm of the stockpiling machine and the stockpile in real time and realize the full-automatic stockpiling operation of the stockpiling machine.

Description

technical field [0001] The present invention relates to the field of stacker control, and more specifically, to a stacking detection control method and system. Background technique [0002] At present, the operation of the stacker in the coal port is generally controlled by manual operation. The process of manual control of the stacker is as follows: the driver drives the stacker to the designated position according to the instructions of the central control personnel, and then drives the stacker to a large size. Rotate the arm at a certain angle (for example, 56.6°), then pitch the arm of the stacker to a suitable position according to the height of the stack, and then start the cantilever belt conveyor to start the stacking operation. The driver observes the relationship between the stockpile and the throwing roller on the arm. Distance, if the distance between the material pile and the throwing roller on the boom is less than 1.5 meters, the driver will judge whether the ...

AI Technical Summary

Problems solved by technology

[0007] Based on the various detection technologies in Table 1, the detection and monitoring of stockpiling in the prior art can only achieve single-point distance measurement, and it is easy to produce large detection errors or the detection results are easily affected by the environment. Interference, so that it is impossible to accurately judge the distance between the stacker and the boom, so in the prior art, it is impossible to completely automatically control the stacker without the driver

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