Method and device for processing micro-seismic signal of coal mine

Abstract

The invention provides a coal mine microseismic signal processing method and device, and the method comprises the steps: monitoring an underground coal mine mining influence region through a vibration sensor, determining a vibration waveform signal corresponding to a monitored real-time vibration signal, and determining the background noise feature information of the real-time vibration waveform signal, the method comprises the following steps: acquiring a real-time vibration waveform signal, processing the real-time vibration waveform signal based on background noise characteristic information to obtain an effective micro-seismic waveform signal of the real-time vibration waveform signal, acquiring a clock signal corresponding to the effective micro-seismic waveform signal, compressing the effective micro-seismic waveform signal and the clock signal, storing the effective micro-seismic waveform signal and the clock signal in a memory card, and uploading the compressed effective micro-seismic waveform signal and the clock signal to an upper computer. In the process of processing the coal mine micro-seismic signal, the effective micro-seismic waveform signal is accurately determined based on the background noise characteristic information of the vibration waveform signal, so that the identification accuracy of the effective micro-seismic waveform signal is improved, and high-precision monitoring of coal mine micro-seismic is realized.

Description

technical field [0001] The present application relates to the field of coal mine safety production monitoring, in particular to a method and device for processing coal mine microseismic signals. Background technique [0002] Coal is the foundation supporting the sustained and rapid development of the national economy. For a long period of time, coal resources will still be the main energy in the domestic energy consumption structure. In the past ten years, whether it is the number of accidents or the number of deaths, coal mine roofs, rock bursts, etc. , coal and gas outburst, mine water inrush and other coal mine dynamic disaster accidents accounted for more than 50%. Among related technologies, microseismic monitoring technology, as a three-dimensional space monitoring technology for coal and rock micro-cracks, has been widely applied to coal mine rock burst, In the monitoring of dynamic disasters such as roof, coal and gas outburst, mine water inrush, etc., the relevant m...

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Problems solved by technology

[0002] Coal is the foundation supporting the sustained and rapid development of the national economy. For a long period of time, coal resources will still be the main energy in the domestic energy consumption structure. In the past ten years, whether it is the number of accidents or the number of deaths, coal mine roofs, rock bursts, etc. , coal and gas outburst, mine water inrush and other coal mine dynamic disaster accidents accounted for more than 50%. Among related technologies, microseismic monitoring technology, as a three-dimensional space monitoring technology for coal and rock micro-cracks, has been widely applied to coal mine rock burst, In the monitoring of dynamic disasters such as roof, coal and gas outburst, mine water inrush, etc., the relevant microseismic monitoring technology has low efficiency and low accuracy in identifying effective microseismic signals

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