A Reliable Cutting Pattern Recognition System of Coal Shearer

Abstract

The invention discloses a reliable coal cutter cutting mode recognition system. The system is composed of a sensing module, a data processing module and a control module. The sensing module collects the operation speed, current and voltage of a motor when a coal cutter works, and the data is transmitted to the data processing module. The data is analyzed through the data processing module, and then the processed data is transmitted to the control module. The control module intelligently recognizes the current geological condition according to the input data, and transmits the result to the coal cutter, so that the cutting mode of the coal cutter is adjusted in time. According to the reliable coal cutter cutting mode recognition system, the operation speed, current and voltage of the motorare adopted as detecting signals, detecting equipment is simple, and the detecting signals and the cutting mode have a reliable corresponding relation. The detecting signals are decomposed, the one-dimensional signals are decomposed into the sum of a plurality of intrinsic mode functions and an afterwind, the characteristics of measuring signals at different time scales are effectively extracted,and the recognition accuracy is further improved.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to a reliable cutting pattern recognition system of a coal mining machine. Background technique [0002] my country is one of the countries with the richest coal resources in the world, with coal reserves of more than 900 billion tons, and is currently the largest coal producer and consumer in the world. Shearer is one of the key equipments to achieve safe and efficient production in coal mines. As the main component of fully mechanized mining equipment, its intelligence level is the key factor to realize "unmanned" or "fewer people" in fully mechanized mining face. Since the 1960s, some domestic and foreign universities, scientific research institutes and coal machine manufacturers have tried to solve the problems of automatic cutting and adaptive control of coal shearers through the coal interface recognition method. [0003] At present, the identification methods of coal-rock interfac...

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Problems solved by technology

[0004] In order to overcome the shortcomings of complex detection equipment and inaccurate extraction of signal features in current shearer cutting pattern recognition, the purpose of the present invention is to provide a reliable shearer cutting pattern recognition system, which uses the motor's operating speed, current and The voltage is the detection signal, and the signal acquisition is simple; and the detection signal is decomposed to better extract features

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