Quick construction method of hillock surface temperature field with space reference

Abstract

The invention relates to a quick construction method of a hillock surface temperature field with space reference, which includes control point distribution, control point coordinate measurement, hillock surface temperature collection, temperature image integral splicing and coordinate conversion. The quick construction method of the temperature field is novel and practical, high in reliability, especially suitable for multi-stage monitoring of surface temperature of the hillock and capable of providing accurate temperature distribution data for early warning and treatment of hillock disaster.

Description

technical field [0001] The invention relates to a method for constructing the surface temperature field of the gangue pile, in particular to a rapid construction method of the gangue pile surface temperature field with a space reference, which can accurately warn the spontaneous combustion and explosion of the gangue pile. Background technique [0002] Coal gangue contains a small amount of coal and pyrite. Under certain conditions, the gangue will spontaneously ignite or even explode due to high temperature. Using infrared temperature measurement technology to monitor the distribution of temperature field on the surface of gangue is the main method for early warning of gangue disasters. However, the gangue is huge in size, and the commonly used infrared thermal imaging camera cannot image at one time when measuring the temperature field of the gangue, and the temperature image taken by it does not have a spatial reference. However, the actual location of the gangue dump can...

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Problems solved by technology

[0002]Coal gangue contains a small amount of coal and pyrite. Under certain conditions, gangue hills may spontaneously ignite or even explode due to high temperature. Use infrared temperature measurement technology to monitor gangue The temperature field distribution on the surface of the gangue is currently the main method for early warning of gangue disasters. However, the gangue is huge, and the commonly used infrared thermal imaging cameras cannot be imaged at one time when measuring the temperature field of the gangue, and the temperature images taken by it do not have a spatial reference. As a result, even if the abnormal high temperature of the gangue dump is obtained by using the infrared thermal imaging camera, the actual location of the gangue dump cannot be accurately located.

[0003]The article "Spatial Information Mining of Infrared Thermography of Gangue Dump Temperature Field" and patent (201110005044.X) "Coal Gangue Dump Based on Total Station and Infrared Thermal Imager Surface temperature field measurement method" divides gangue hills into regions, regards each small region as a plane, and uses polynomial fitting to establish the coordinate transformation relation of the region. Although it can give the temperature field measured by the infrared thermal imager Space coordinates are assigned, but a large number of marker points need to be established on the gangue hill, which is laborious and cumbersome to calculate, and when the total station measures the coordinates of the space points, it is necessary to be able to communicate between the station and the target point, and the slope of the gangue hill is generally relatively low. Large, making the operability of existing methods not strong

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