Method of reducing mine earthquake monitoring system data quantities and mine earthquake monitoring apparatus

Abstract

The invention discloses a method of reducing mine earthquake monitoring system data quantities and a mine earthquake monitoring apparatus. The method comprises the following steps that mine earthquake amplitudes are monitored in a real-time manner through each node; when the mine earthquake amplitude in a certain node reaches a threshold value, an interrupt signal is formed; the time information of the interrupt moment is acquired to be the seismic wave first arrival moment and sent to a host computer through a network; the host computer sends the seismic wave first arrival moment and data transmission time intervals to each monitoring node in a broadcasting way through the network; and each monitoring node sends sampling data of a plurality of periods before and after the seismic wave first arrival moment to the host computer. The mine earthquake monitoring apparatus based on the method mainly comprises a synchronizing module, a threshold comparator, a main memory, an auxiliary memory, and a memory of data to be sent. When a mine earthquake event happens, monitoring data transmission is then performed between the monitoring apparatus and the host computer. A lot of useless data are prevented from being networked. Data are further prevented from being lost due to network congestion. Conditions that certain nodes fail to sense the mine earthquake and some data are not reported are further prevented.

Description

technical field [0001] The invention relates to a method for data transmission of a mine earthquake monitoring system and a mine earthquake monitoring device, in particular to a method for reducing the data transmission volume of the mine earthquake monitoring system and a mine earthquake monitoring device, which belong to the technical field of coal mine monitoring. Background technique [0002] Mine earthquake is a mine earthquake induced by mining, and it is a natural disaster in mines. When a mine earthquake occurs, the surrounding rocks release energy rapidly, and the coal rocks are suddenly destroyed instantly, causing roof caving, broken brackets, roadway blockage, ground vibration, house damage and personal casualties. The distributed mining earthquake monitoring system can accurately locate and monitor and record information such as the frequency and energy of mining earthquake activities in a certain area, and invert the longitudinal wave velocity of coal and rock ...

AI Technical Summary

Problems solved by technology

[0003] The distributed mining earthquake monitoring system requires a large number of monitoring nodes, and each node needs to monitor the vibration signal with a high sampling rate and high sampling accuracy, so the large amount of data transmission puts a huge pressure on the network, and it is easy to cause data loss due to network congestion.

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