Real-time automatic monitor for mine acoustic emission

Abstract

The invention discloses a real-time automatic monitor for mine acoustic emission, and belongs to the technical field of coal rock mass acoustic emission monitoring. The real-time automatic monitor comprises a real-time embedded controller, an FPGA module, a data storage module, an acquisition module, a signal synchronization module, a communicating module, an analog-to-digital conversion module, an isolation transformation module, and an LCD, wherein the real-time embedded controller is connected with the LCD and the FPGA module respectively; the FPGA module is connected with the signal synchronization module, the communicating module, the analog-to-digital conversion module, the data storage module and the acquisition module respectively; the isolation transformation module is connected with the analog-to-digital conversion module. The real-time automatic monitor is low in power consumption, can perform continuous all-weather acquisition and monitoring for characteristic parameters including acoustic emission incident number, ringing count, energy and the like for the coal rock mass and a concrete structure, and can realize synchronous and parallel signal communication, signal storage, signal treatment and analysis, acoustic alarming, information feedback and working condition display through allocating IP address and performing working instructions, and can either be hung to a mine safety monitoring system or work independently.

Description

technical field [0001] The invention belongs to the technical field of coal and rock mass acoustic emission monitoring, and relates to a real-time automatic monitoring instrument for mine acoustic emission. Background technique [0002] In recent years, with the continuous increase of the depth of mine mining and the increase of mining intensity, the deep horizontal mine pressure of the mine has become more and more obvious. The coal mine dynamic disasters controlled by in-situ stress gas and coal structure, the deep horizontal and shallow mines are controlled separately. The leading role of factors on dynamic disasters and the coupling relationship between various control factors are also becoming more and more complex. At present, the conventional single static prediction method can only reflect the index and changes of a certain factor of the coal-rock gas dynamic disaster, while the acoustic emission monitoring technology is the real-time online monitoring of the main co...

AI Technical Summary

Problems solved by technology

[0003] Although the acoustic emission equipment currently on the market is relatively mature, due to the complex underground conditions, the relatively harsh working environment and the ground, the applicable conditions are very harsh, making it difficult to apply the relatively mature acoustic emission equipment on the ground to the underground environment middle

And for a long time, due to the limitations of the computer level and the performance of acquisition boards, etc., the acoustic emission equipment has low data processing capabilities, cannot multi-channel parallel acquisition and processing, communication, huge data volume, and it is difficult to mount monitoring systems and filter noise. A series of problems such as poor pertinence of technology and analysis and processing software

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