An electromagnetic early warning system and method for safety monitoring

Abstract

The invention relates to an electromagnetic-method early-warning system for safety monitoring and an electromagnetic-method early-warning method. The electromagnetic-method early-warning system comprises the components of a transmitter, a transmitting coil, a receiver, receiving probes and an upper computer with a monitoring processing module. The transmitter is connected with the transmitting coil. The receiver comprises a main receiver and n (n>=1) auxiliary receivers. The main receiver is connected with the transmitter. The n auxiliary receivers are respectively provided with a receiving probe. The transmitter, the main receiver and the n auxiliary receivers are respectively provided with an Ethernet interface. The corresponding Ethernet interfaces on the transmitter, the main receiver and the n auxiliary receivers are connected with the upper computer through a switch. The electromagnetic-method early-warning system for safety monitoring according to the invention is advantageous in that multiple-point monitoring can be realized through utilizing the plurality of auxiliary receivers; measurement efficiency is improved; and the monitored data can be transmitted to the upper computer in real time for being processed, thereby performing an early-warning function.

Description

technical field [0001] The invention relates to geological prospecting equipment and methods, in particular to an electromagnetic early warning system and method for safety monitoring. Background technique [0002] The transient electromagnetic method belongs to a geophysical prospecting method. This method uses an ungrounded transmitting wire frame or a grounded wire source to transmit a pulsed magnetic field underground. The method of observing the secondary eddy current field is mainly used in engineering exploration, metal mines and non-metal mines and other fields. Transient electromagnetic method equipment is used to collect and monitor abnormal water inrush data in real time in the mine working face, which can reduce mine safety hazards. The existing foreign technology usually adopts the working method of small current and large wire frame, while domestic The innovation of the company has also gradually begun to apply the small wire frame and high current method. Th...

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Problems solved by technology

It has greatly affected the normal production requirements of the coal mine, and the work efficiency is low

[0005] c. Impossible to measure in real time: due to real-time mining in coal mines, changes in surrounding rock stress and structural deformation may occur at any time during the mining process, so water damage will occur in real time

For such real-time hazard detection, there is currently no transient type device that can detect

At the same time, how to process the data collected in real time is also a difficult problem at present.

[0006] d. Unable to achieve the early warning function: Currently, similar products on the market use a single fixed-point measurement method. There is a long time interval between the next measurement and this measurement, and it is impossible to realize real-time monitoring and early warning capabilities for abnormal investigations.

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