Wireless sensor network-based monitoring and early warning method for running state of mine ventilator

Abstract

The invention relates to a wireless sensor network-based monitoring and early warning method for a running state of a mine ventilator. Accurate online monitoring and early warning are realized through collecting the vibration, the temperature and the negative pressure information of the ventilator. A monitoring and early warning system comprises a monitoring computer, a Zigbee coordinator node, at least six sensor nodes, at least four temperature sensors, a negative pressure sensor and two vibration sensors, wherein the coordinator node and the sensor nodes are built into a wireless sensor network in a self-organization way; the monitoring computer and the coordinator node are connected through a serial interface line; the four temperature sensors are respectively fixed on bearing bushes at both sides of a motor and a fan; the two vibration sensors are horizontally and vertically arranged on a fan shell; and the negative pressure sensor is connected onto a negative pressure measuring pipe on the fan. According to the wireless sensor network-based monitoring and early warning method for the running state of the mine ventilator, the early warning is more timely and diagnosis is more accurate by adopting integrated diagnosis method of built-in countermeasure base and relative threshold early warning and fuzzy theory.

Description

technical field [0001] The invention relates to a monitoring method for the operating state of a mine ventilator based on a wireless sensor network. Through the collection of the vibration, temperature and negative pressure information of the ventilator, accurate online monitoring of the ventilator state is realized, and possible faults Forewarning. Background technique [0002] The ventilator is the key equipment for safe production in coal mines, and it is responsible for conveying fresh air underground, discharging dust and dirty air, and ensuring safe production in mines. The traditional fan status monitoring system transmits data through cables, that is, arranging multiple sensors at designated positions of the measured object, wiring the sensors one-to-one, and then centralizing them to the central monitoring equipment. This process will take a lot of manpower to arrange the sensors, requiring testers to wire the sensors without errors and prevent the data transmissio...

AI Technical Summary

Problems solved by technology

This cumbersome process will bring a lot of inconvenience to the testers. In the case of many sensors, the wiring will even cause visual confusion. For rotating devices, wired sensor monitoring is even impossible.

More importantly, considering the limitations of the working environment, wired sensor networks are sometimes extremely unrealizable

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