Device and method for real-time dynamic wireless monitoring of roof safety in coal mine working face

Abstract

The invention provides a coal mine working face roof safe real-time dynamic wireless monitoring device and method, the coal mine working face roof safe real-time dynamic wireless monitoring device is composed of a plurality of groups of signal transmitters and a signal transceiver center arranged on a working face, each group of signal transmitter comprises a variety of sensors, parts of the sensors are connected with a single-chip machine by an A / D (analog-digital) converter, other sensors are in direct connection with a single-chip microcomputer I, the single-chip microcomputer I is connected with a wireless transceiver module; the signal transceiver center includes a wireless transceiver module, and a single-chip microcomputer II for controlling the wireless transceiver module, the single-chip microcomputer II is connected with a display module, a 485 communication interface, a function button and an alarm. The coal mine working face roof safe real-time dynamic wireless monitoring device can detect roof pressure, height of caving zone of an end face and roof-to-floor convergence in real time, can also, according to various preset values, form an alarm circuit to achieve the early warning function and data store and transmission function for early warning and alert of fully mechanized working face roof safety, the coal mine working face roof safe real-time dynamic wireless monitoring device has the advantages of simple operation, low power consumption, high accuracy of measurement, and superior prediction and warning method.

Description

technical field [0001] The invention relates to a real-time dynamic wireless monitoring device and method for roof safety of coal mine working faces, and is generally applicable to real-time dynamic monitoring of roof safety of fully mechanized mining working faces of various coal mines. Background technique [0002] my country is a major coal producer in the world, and the output of coal has been increasing in recent years. However, the annual average death toll in my country's coal production is three times that of other coal-producing countries in the world combined, which has brought huge losses to the lives and property of the people of the country. . Among the five natural disasters in coal mines, roof accidents account for a very large proportion. Roof disaster accidents refer to casualties, equipment damage, production termination and other accidents caused by the accidental fall of the roof during the underground production process of coal mines. Compared with acci...

AI Technical Summary

Problems solved by technology

But at present, these three effective indicators are all manually measured by independent instruments. On the one hand, the accuracy of the data cannot be guaranteed; This has buried hidden dangers for accidents on the roof of the working face, seriously threatening the property of the coal mine and the lives of workers.

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