Concealed fire source detection system and detection method in goaf

Abstract

The invention discloses a concealed fire source detection system in a goaf. The detection system comprises a plurality of wireless temperature sensor network node devices, CANs (Controller Area Network), a data receiving module and an upper computer, wherein the CANs are distributed in roadways, the data receiving module is arranged on the ground, the plurality of wireless temperature sensor network node devices are respectively hang on the CANs connected with the data receiving module through an optical cable and the data receiving module is connected with the upper module. During the coalmine production period, the plurality of wireless temperature sensor network node devices are arranged at regular intervals when a working surface is propelled, the CANs are arranged in the roadways at the two sides of the working surface, the plurality of wireless temperature sensor network node devices are respectively hung on the CANs, signal transmission optical cables are paved to the ground along the underground roadways and are connected with the ground data receiving module, and the data receiving module is connected with the upper computer of a monitoring chamber. The concealed fire source detection system provided by the invention has the advantages of improving the detection precision of the concealed fire source of the coal goaf, the problems that the temperature measurement response of the goaf can be solved, and the labor problems of the temperature measurement of the coal goaf can be solved.

Description

Technical field [0001] The invention relates to a temperature measurement method and system, in particular to a method capable of continuously measuring the temperature changes on site in the harsh environment of the goaf of a coal mine at multiple points, thereby achieving the purpose of detecting hidden fire sources in the goaf. Background technique [0002] At present, the methods for detecting hidden fire sources in coal mine goafs mainly include infrared remote sensing imaging method, isotope radon method, radio wave method, geological radar method, etc. Each method has its own advantages, disadvantages and scope of application. [0003] The temperature of the coal in the goaf is an important parameter to characterize the fire source of the coal. Therefore, monitoring the temperature in the goaf is of great significance for detecting the fire source in the goaf. Most of the coal mines in our country adopt fully-mechanized mining technology, all roofs are managed by caving, and...

AI Technical Summary

Problems solved by technology

At the same time, the sensor needs power supply, the signal transmitted is an electrical signal, the anti-interference ability is weak, the reliability is low, and because the environment in the goaf is harsh, there are many potential safety hazards

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