Distributed coal-rock dynamic disaster sound and electricity synchronous monitoring system and method

Abstract

The invention discloses a distributed coal and rock dynamic disaster sound and electricity synchronous monitoring system and method, belonging to the synchronous monitoring system and method of sound and electricity. The electro-acoustic synchronous monitors of the monitoring system are connected by synchronous lines, the sound sensor or the electromagnetic sensor are connected with the input end of the electro-acoustic synchronous monitors, the output ends of the electro-acoustic synchronous monitors are connected with the communication control substation, and the power supply supplies power to the communication control substation and the electro-acoustic synchronous monitors. The electro-acoustic synchronous monitors are connected with a GPS timing device, a monitoring center and a monitoring terminal through the communication control substation and the optical fiber network, the system can simultaneously trigger the monitoring of sound waves and electromagnetic radiation signal. Via real-time multipoint monitoring and collecting waveforms of the acoustic signal and electromagnetic radiation signals generated by the coal-bearing rock, coal and rock dynamic disaster evolution process is reflected to send early warning according to signal changes; the position of the sound wave source and the electromagnetic anomaly area are located in real time, and the danger area can be determined according to their distribution. The distributed coal and rock dynamic disaster sound and electricity synchronous monitoring system is convenient to mount and move, and high in automation in monitoring, analysis and early warning.

Description

technical field [0001] The invention relates to an acoustic-electric synchronous monitoring system and method, in particular to an acoustic-electric synchronous monitoring system and method for distributed coal-rock dynamic disasters. Background technique [0002] Common coal-rock dynamic disasters in mines mainly include coal (rock) and gas (methane or carbon dioxide) outburst, rock burst (also known as rock burst or mine earthquake), rockburst, roof collapse, and water inrush, etc. Metal mines and There are also rockburst disasters in tunnels. With the increase of mining depth and mining intensity, coal-rock dynamic disasters such as mine gas outburst and rock burst have become increasingly serious and complex, and the risk of disasters has increased significantly. At the same time, some mines that had no dynamic disasters or obvious signs are now also Gradually, it seriously threatens the life safety of underground workers and the normal production of mines. [0003] At...

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Problems solved by technology

[0007] Technical problem: The present invention is aimed at the demand and the problems existing in the prior art, and provides a distributed coal-rock dynamic disaster that can monitor the multi-frequency sound wave emission and electromagnetic radiation of coal rock in the whole process, all-round and high-precision synchronously Acoustic-electric synchronous monitoring system and method to solve the problem that the current technology cannot meet the multi-scale, large-scale, high-precision real-time monitoring and early warning of coal and rock dynamic disasters in mine and mining work

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